???PK!/֋module.audio-video.matroska.phpnu[ // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio-video.matriska.php // // module for analyzing Matroska containers // // dependencies: NONE // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } define('EBML_ID_CHAPTERS', 0x0043A770); // [10][43][A7][70] -- A system to define basic menus and partition data. For more detailed information, look at the Chapters Explanation. define('EBML_ID_SEEKHEAD', 0x014D9B74); // [11][4D][9B][74] -- Contains the position of other level 1 elements. define('EBML_ID_TAGS', 0x0254C367); // [12][54][C3][67] -- Element containing elements specific to Tracks/Chapters. A list of valid tags can be found . define('EBML_ID_INFO', 0x0549A966); // [15][49][A9][66] -- Contains miscellaneous general information and statistics on the file. define('EBML_ID_TRACKS', 0x0654AE6B); // [16][54][AE][6B] -- A top-level block of information with many tracks described. define('EBML_ID_SEGMENT', 0x08538067); // [18][53][80][67] -- This element contains all other top-level (level 1) elements. Typically a Matroska file is composed of 1 segment. define('EBML_ID_ATTACHMENTS', 0x0941A469); // [19][41][A4][69] -- Contain attached files. define('EBML_ID_EBML', 0x0A45DFA3); // [1A][45][DF][A3] -- Set the EBML characteristics of the data to follow. Each EBML document has to start with this. define('EBML_ID_CUES', 0x0C53BB6B); // [1C][53][BB][6B] -- A top-level element to speed seeking access. All entries are local to the segment. define('EBML_ID_CLUSTER', 0x0F43B675); // [1F][43][B6][75] -- The lower level element containing the (monolithic) Block structure. define('EBML_ID_LANGUAGE', 0x02B59C); // [22][B5][9C] -- Specifies the language of the track in the Matroska languages form. define('EBML_ID_TRACKTIMECODESCALE', 0x03314F); // [23][31][4F] -- The scale to apply on this track to work at normal speed in relation with other tracks (mostly used to adjust video speed when the audio length differs). define('EBML_ID_DEFAULTDURATION', 0x03E383); // [23][E3][83] -- Number of nanoseconds (i.e. not scaled) per frame. define('EBML_ID_CODECNAME', 0x058688); // [25][86][88] -- A human-readable string specifying the codec. define('EBML_ID_CODECDOWNLOADURL', 0x06B240); // [26][B2][40] -- A URL to download about the codec used. define('EBML_ID_TIMECODESCALE', 0x0AD7B1); // [2A][D7][B1] -- Timecode scale in nanoseconds (1.000.000 means all timecodes in the segment are expressed in milliseconds). define('EBML_ID_COLOURSPACE', 0x0EB524); // [2E][B5][24] -- Same value as in AVI (32 bits). define('EBML_ID_GAMMAVALUE', 0x0FB523); // [2F][B5][23] -- Gamma Value. define('EBML_ID_CODECSETTINGS', 0x1A9697); // [3A][96][97] -- A string describing the encoding setting used. define('EBML_ID_CODECINFOURL', 0x1B4040); // [3B][40][40] -- A URL to find information about the codec used. define('EBML_ID_PREVFILENAME', 0x1C83AB); // [3C][83][AB] -- An escaped filename corresponding to the previous segment. define('EBML_ID_PREVUID', 0x1CB923); // [3C][B9][23] -- A unique ID to identify the previous chained segment (128 bits). define('EBML_ID_NEXTFILENAME', 0x1E83BB); // [3E][83][BB] -- An escaped filename corresponding to the next segment. define('EBML_ID_NEXTUID', 0x1EB923); // [3E][B9][23] -- A unique ID to identify the next chained segment (128 bits). define('EBML_ID_CONTENTCOMPALGO', 0x0254); // [42][54] -- The compression algorithm used. Algorithms that have been specified so far are: define('EBML_ID_CONTENTCOMPSETTINGS', 0x0255); // [42][55] -- Settings that might be needed by the decompressor. For Header Stripping (ContentCompAlgo=3), the bytes that were removed from the beggining of each frames of the track. define('EBML_ID_DOCTYPE', 0x0282); // [42][82] -- A string that describes the type of document that follows this EBML header ('matroska' in our case). define('EBML_ID_DOCTYPEREADVERSION', 0x0285); // [42][85] -- The minimum DocType version an interpreter has to support to read this file. define('EBML_ID_EBMLVERSION', 0x0286); // [42][86] -- The version of EBML parser used to create the file. define('EBML_ID_DOCTYPEVERSION', 0x0287); // [42][87] -- The version of DocType interpreter used to create the file. define('EBML_ID_EBMLMAXIDLENGTH', 0x02F2); // [42][F2] -- The maximum length of the IDs you'll find in this file (4 or less in Matroska). define('EBML_ID_EBMLMAXSIZELENGTH', 0x02F3); // [42][F3] -- The maximum length of the sizes you'll find in this file (8 or less in Matroska). This does not override the element size indicated at the beginning of an element. Elements that have an indicated size which is larger than what is allowed by EBMLMaxSizeLength shall be considered invalid. define('EBML_ID_EBMLREADVERSION', 0x02F7); // [42][F7] -- The minimum EBML version a parser has to support to read this file. define('EBML_ID_CHAPLANGUAGE', 0x037C); // [43][7C] -- The languages corresponding to the string, in the bibliographic ISO-639-2 form. define('EBML_ID_CHAPCOUNTRY', 0x037E); // [43][7E] -- The countries corresponding to the string, same 2 octets as in Internet domains. define('EBML_ID_SEGMENTFAMILY', 0x0444); // [44][44] -- A randomly generated unique ID that all segments related to each other must use (128 bits). define('EBML_ID_DATEUTC', 0x0461); // [44][61] -- Date of the origin of timecode (value 0), i.e. production date. define('EBML_ID_TAGLANGUAGE', 0x047A); // [44][7A] -- Specifies the language of the tag specified, in the Matroska languages form. define('EBML_ID_TAGDEFAULT', 0x0484); // [44][84] -- Indication to know if this is the default/original language to use for the given tag. define('EBML_ID_TAGBINARY', 0x0485); // [44][85] -- The values of the Tag if it is binary. Note that this cannot be used in the same SimpleTag as TagString. define('EBML_ID_TAGSTRING', 0x0487); // [44][87] -- The value of the Tag. define('EBML_ID_DURATION', 0x0489); // [44][89] -- Duration of the segment (based on TimecodeScale). define('EBML_ID_CHAPPROCESSPRIVATE', 0x050D); // [45][0D] -- Some optional data attached to the ChapProcessCodecID information. For ChapProcessCodecID = 1, it is the "DVD level" equivalent. define('EBML_ID_CHAPTERFLAGENABLED', 0x0598); // [45][98] -- Specify wether the chapter is enabled. It can be enabled/disabled by a Control Track. When disabled, the movie should skip all the content between the TimeStart and TimeEnd of this chapter. define('EBML_ID_TAGNAME', 0x05A3); // [45][A3] -- The name of the Tag that is going to be stored. define('EBML_ID_EDITIONENTRY', 0x05B9); // [45][B9] -- Contains all information about a segment edition. define('EBML_ID_EDITIONUID', 0x05BC); // [45][BC] -- A unique ID to identify the edition. It's useful for tagging an edition. define('EBML_ID_EDITIONFLAGHIDDEN', 0x05BD); // [45][BD] -- If an edition is hidden (1), it should not be available to the user interface (but still to Control Tracks). define('EBML_ID_EDITIONFLAGDEFAULT', 0x05DB); // [45][DB] -- If a flag is set (1) the edition should be used as the default one. define('EBML_ID_EDITIONFLAGORDERED', 0x05DD); // [45][DD] -- Specify if the chapters can be defined multiple times and the order to play them is enforced. define('EBML_ID_FILEDATA', 0x065C); // [46][5C] -- The data of the file. define('EBML_ID_FILEMIMETYPE', 0x0660); // [46][60] -- MIME type of the file. define('EBML_ID_FILENAME', 0x066E); // [46][6E] -- Filename of the attached file. define('EBML_ID_FILEREFERRAL', 0x0675); // [46][75] -- A binary value that a track/codec can refer to when the attachment is needed. define('EBML_ID_FILEDESCRIPTION', 0x067E); // [46][7E] -- A human-friendly name for the attached file. define('EBML_ID_FILEUID', 0x06AE); // [46][AE] -- Unique ID representing the file, as random as possible. define('EBML_ID_CONTENTENCALGO', 0x07E1); // [47][E1] -- The encryption algorithm used. The value '0' means that the contents have not been encrypted but only signed. Predefined values: define('EBML_ID_CONTENTENCKEYID', 0x07E2); // [47][E2] -- For public key algorithms this is the ID of the public key the data was encrypted with. define('EBML_ID_CONTENTSIGNATURE', 0x07E3); // [47][E3] -- A cryptographic signature of the contents. define('EBML_ID_CONTENTSIGKEYID', 0x07E4); // [47][E4] -- This is the ID of the private key the data was signed with. define('EBML_ID_CONTENTSIGALGO', 0x07E5); // [47][E5] -- The algorithm used for the signature. A value of '0' means that the contents have not been signed but only encrypted. Predefined values: define('EBML_ID_CONTENTSIGHASHALGO', 0x07E6); // [47][E6] -- The hash algorithm used for the signature. A value of '0' means that the contents have not been signed but only encrypted. Predefined values: define('EBML_ID_MUXINGAPP', 0x0D80); // [4D][80] -- Muxing application or library ("libmatroska-0.4.3"). define('EBML_ID_SEEK', 0x0DBB); // [4D][BB] -- Contains a single seek entry to an EBML element. define('EBML_ID_CONTENTENCODINGORDER', 0x1031); // [50][31] -- Tells when this modification was used during encoding/muxing starting with 0 and counting upwards. The decoder/demuxer has to start with the highest order number it finds and work its way down. This value has to be unique over all ContentEncodingOrder elements in the segment. define('EBML_ID_CONTENTENCODINGSCOPE', 0x1032); // [50][32] -- A bit field that describes which elements have been modified in this way. Values (big endian) can be OR'ed. Possible values: define('EBML_ID_CONTENTENCODINGTYPE', 0x1033); // [50][33] -- A value describing what kind of transformation has been done. Possible values: define('EBML_ID_CONTENTCOMPRESSION', 0x1034); // [50][34] -- Settings describing the compression used. Must be present if the value of ContentEncodingType is 0 and absent otherwise. Each block must be decompressable even if no previous block is available in order not to prevent seeking. define('EBML_ID_CONTENTENCRYPTION', 0x1035); // [50][35] -- Settings describing the encryption used. Must be present if the value of ContentEncodingType is 1 and absent otherwise. define('EBML_ID_CUEREFNUMBER', 0x135F); // [53][5F] -- Number of the referenced Block of Track X in the specified Cluster. define('EBML_ID_NAME', 0x136E); // [53][6E] -- A human-readable track name. define('EBML_ID_CUEBLOCKNUMBER', 0x1378); // [53][78] -- Number of the Block in the specified Cluster. define('EBML_ID_TRACKOFFSET', 0x137F); // [53][7F] -- A value to add to the Block's Timecode. This can be used to adjust the playback offset of a track. define('EBML_ID_SEEKID', 0x13AB); // [53][AB] -- The binary ID corresponding to the element name. define('EBML_ID_SEEKPOSITION', 0x13AC); // [53][AC] -- The position of the element in the segment in octets (0 = first level 1 element). define('EBML_ID_STEREOMODE', 0x13B8); // [53][B8] -- Stereo-3D video mode. define('EBML_ID_OLDSTEREOMODE', 0x13B9); // [53][B9] -- Bogus StereoMode value used in old versions of libmatroska. DO NOT USE. (0: mono, 1: right eye, 2: left eye, 3: both eyes). define('EBML_ID_PIXELCROPBOTTOM', 0x14AA); // [54][AA] -- The number of video pixels to remove at the bottom of the image (for HDTV content). define('EBML_ID_DISPLAYWIDTH', 0x14B0); // [54][B0] -- Width of the video frames to display. define('EBML_ID_DISPLAYUNIT', 0x14B2); // [54][B2] -- Type of the unit for DisplayWidth/Height (0: pixels, 1: centimeters, 2: inches). define('EBML_ID_ASPECTRATIOTYPE', 0x14B3); // [54][B3] -- Specify the possible modifications to the aspect ratio (0: free resizing, 1: keep aspect ratio, 2: fixed). define('EBML_ID_DISPLAYHEIGHT', 0x14BA); // [54][BA] -- Height of the video frames to display. define('EBML_ID_PIXELCROPTOP', 0x14BB); // [54][BB] -- The number of video pixels to remove at the top of the image. define('EBML_ID_PIXELCROPLEFT', 0x14CC); // [54][CC] -- The number of video pixels to remove on the left of the image. define('EBML_ID_PIXELCROPRIGHT', 0x14DD); // [54][DD] -- The number of video pixels to remove on the right of the image. define('EBML_ID_FLAGFORCED', 0x15AA); // [55][AA] -- Set if that track MUST be used during playback. There can be many forced track for a kind (audio, video or subs), the player should select the one which language matches the user preference or the default + forced track. Overlay MAY happen between a forced and non-forced track of the same kind. define('EBML_ID_MAXBLOCKADDITIONID', 0x15EE); // [55][EE] -- The maximum value of BlockAddID. A value 0 means there is no BlockAdditions for this track. define('EBML_ID_WRITINGAPP', 0x1741); // [57][41] -- Writing application ("mkvmerge-0.3.3"). define('EBML_ID_CLUSTERSILENTTRACKS', 0x1854); // [58][54] -- The list of tracks that are not used in that part of the stream. It is useful when using overlay tracks on seeking. Then you should decide what track to use. define('EBML_ID_CLUSTERSILENTTRACKNUMBER', 0x18D7); // [58][D7] -- One of the track number that are not used from now on in the stream. It could change later if not specified as silent in a further Cluster. define('EBML_ID_ATTACHEDFILE', 0x21A7); // [61][A7] -- An attached file. define('EBML_ID_CONTENTENCODING', 0x2240); // [62][40] -- Settings for one content encoding like compression or encryption. define('EBML_ID_BITDEPTH', 0x2264); // [62][64] -- Bits per sample, mostly used for PCM. define('EBML_ID_CODECPRIVATE', 0x23A2); // [63][A2] -- Private data only known to the codec. define('EBML_ID_TARGETS', 0x23C0); // [63][C0] -- Contain all UIDs where the specified meta data apply. It is void to describe everything in the segment. define('EBML_ID_CHAPTERPHYSICALEQUIV', 0x23C3); // [63][C3] -- Specify the physical equivalent of this ChapterAtom like "DVD" (60) or "SIDE" (50), see complete list of values. define('EBML_ID_TAGCHAPTERUID', 0x23C4); // [63][C4] -- A unique ID to identify the Chapter(s) the tags belong to. If the value is 0 at this level, the tags apply to all chapters in the Segment. define('EBML_ID_TAGTRACKUID', 0x23C5); // [63][C5] -- A unique ID to identify the Track(s) the tags belong to. If the value is 0 at this level, the tags apply to all tracks in the Segment. define('EBML_ID_TAGATTACHMENTUID', 0x23C6); // [63][C6] -- A unique ID to identify the Attachment(s) the tags belong to. If the value is 0 at this level, the tags apply to all the attachments in the Segment. define('EBML_ID_TAGEDITIONUID', 0x23C9); // [63][C9] -- A unique ID to identify the EditionEntry(s) the tags belong to. If the value is 0 at this level, the tags apply to all editions in the Segment. define('EBML_ID_TARGETTYPE', 0x23CA); // [63][CA] -- An informational string that can be used to display the logical level of the target like "ALBUM", "TRACK", "MOVIE", "CHAPTER", etc (see TargetType). define('EBML_ID_TRACKTRANSLATE', 0x2624); // [66][24] -- The track identification for the given Chapter Codec. define('EBML_ID_TRACKTRANSLATETRACKID', 0x26A5); // [66][A5] -- The binary value used to represent this track in the chapter codec data. The format depends on the ChapProcessCodecID used. define('EBML_ID_TRACKTRANSLATECODEC', 0x26BF); // [66][BF] -- The chapter codec using this ID (0: Matroska Script, 1: DVD-menu). define('EBML_ID_TRACKTRANSLATEEDITIONUID', 0x26FC); // [66][FC] -- Specify an edition UID on which this translation applies. When not specified, it means for all editions found in the segment. define('EBML_ID_SIMPLETAG', 0x27C8); // [67][C8] -- Contains general information about the target. define('EBML_ID_TARGETTYPEVALUE', 0x28CA); // [68][CA] -- A number to indicate the logical level of the target (see TargetType). define('EBML_ID_CHAPPROCESSCOMMAND', 0x2911); // [69][11] -- Contains all the commands associated to the Atom. define('EBML_ID_CHAPPROCESSTIME', 0x2922); // [69][22] -- Defines when the process command should be handled (0: during the whole chapter, 1: before starting playback, 2: after playback of the chapter). define('EBML_ID_CHAPTERTRANSLATE', 0x2924); // [69][24] -- A tuple of corresponding ID used by chapter codecs to represent this segment. define('EBML_ID_CHAPPROCESSDATA', 0x2933); // [69][33] -- Contains the command information. The data should be interpreted depending on the ChapProcessCodecID value. For ChapProcessCodecID = 1, the data correspond to the binary DVD cell pre/post commands. define('EBML_ID_CHAPPROCESS', 0x2944); // [69][44] -- Contains all the commands associated to the Atom. define('EBML_ID_CHAPPROCESSCODECID', 0x2955); // [69][55] -- Contains the type of the codec used for the processing. A value of 0 means native Matroska processing (to be defined), a value of 1 means the DVD command set is used. More codec IDs can be added later. define('EBML_ID_CHAPTERTRANSLATEID', 0x29A5); // [69][A5] -- The binary value used to represent this segment in the chapter codec data. The format depends on the ChapProcessCodecID used. define('EBML_ID_CHAPTERTRANSLATECODEC', 0x29BF); // [69][BF] -- The chapter codec using this ID (0: Matroska Script, 1: DVD-menu). define('EBML_ID_CHAPTERTRANSLATEEDITIONUID', 0x29FC); // [69][FC] -- Specify an edition UID on which this correspondance applies. When not specified, it means for all editions found in the segment. define('EBML_ID_CONTENTENCODINGS', 0x2D80); // [6D][80] -- Settings for several content encoding mechanisms like compression or encryption. define('EBML_ID_MINCACHE', 0x2DE7); // [6D][E7] -- The minimum number of frames a player should be able to cache during playback. If set to 0, the reference pseudo-cache system is not used. define('EBML_ID_MAXCACHE', 0x2DF8); // [6D][F8] -- The maximum cache size required to store referenced frames in and the current frame. 0 means no cache is needed. define('EBML_ID_CHAPTERSEGMENTUID', 0x2E67); // [6E][67] -- A segment to play in place of this chapter. Edition ChapterSegmentEditionUID should be used for this segment, otherwise no edition is used. define('EBML_ID_CHAPTERSEGMENTEDITIONUID', 0x2EBC); // [6E][BC] -- The edition to play from the segment linked in ChapterSegmentUID. define('EBML_ID_TRACKOVERLAY', 0x2FAB); // [6F][AB] -- Specify that this track is an overlay track for the Track specified (in the u-integer). That means when this track has a gap (see SilentTracks) the overlay track should be used instead. The order of multiple TrackOverlay matters, the first one is the one that should be used. If not found it should be the second, etc. define('EBML_ID_TAG', 0x3373); // [73][73] -- Element containing elements specific to Tracks/Chapters. define('EBML_ID_SEGMENTFILENAME', 0x3384); // [73][84] -- A filename corresponding to this segment. define('EBML_ID_SEGMENTUID', 0x33A4); // [73][A4] -- A randomly generated unique ID to identify the current segment between many others (128 bits). define('EBML_ID_CHAPTERUID', 0x33C4); // [73][C4] -- A unique ID to identify the Chapter. define('EBML_ID_TRACKUID', 0x33C5); // [73][C5] -- A unique ID to identify the Track. This should be kept the same when making a direct stream copy of the Track to another file. define('EBML_ID_ATTACHMENTLINK', 0x3446); // [74][46] -- The UID of an attachment that is used by this codec. define('EBML_ID_CLUSTERBLOCKADDITIONS', 0x35A1); // [75][A1] -- Contain additional blocks to complete the main one. An EBML parser that has no knowledge of the Block structure could still see and use/skip these data. define('EBML_ID_CHANNELPOSITIONS', 0x347B); // [7D][7B] -- Table of horizontal angles for each successive channel, see appendix. define('EBML_ID_OUTPUTSAMPLINGFREQUENCY', 0x38B5); // [78][B5] -- Real output sampling frequency in Hz (used for SBR techniques). define('EBML_ID_TITLE', 0x3BA9); // [7B][A9] -- General name of the segment. define('EBML_ID_CHAPTERDISPLAY', 0x00); // [80] -- Contains all possible strings to use for the chapter display. define('EBML_ID_TRACKTYPE', 0x03); // [83] -- A set of track types coded on 8 bits (1: video, 2: audio, 3: complex, 0x10: logo, 0x11: subtitle, 0x12: buttons, 0x20: control). define('EBML_ID_CHAPSTRING', 0x05); // [85] -- Contains the string to use as the chapter atom. define('EBML_ID_CODECID', 0x06); // [86] -- An ID corresponding to the codec, see the codec page for more info. define('EBML_ID_FLAGDEFAULT', 0x08); // [88] -- Set if that track (audio, video or subs) SHOULD be used if no language found matches the user preference. define('EBML_ID_CHAPTERTRACKNUMBER', 0x09); // [89] -- UID of the Track to apply this chapter too. In the absense of a control track, choosing this chapter will select the listed Tracks and deselect unlisted tracks. Absense of this element indicates that the Chapter should be applied to any currently used Tracks. define('EBML_ID_CLUSTERSLICES', 0x0E); // [8E] -- Contains slices description. define('EBML_ID_CHAPTERTRACK', 0x0F); // [8F] -- List of tracks on which the chapter applies. If this element is not present, all tracks apply define('EBML_ID_CHAPTERTIMESTART', 0x11); // [91] -- Timecode of the start of Chapter (not scaled). define('EBML_ID_CHAPTERTIMEEND', 0x12); // [92] -- Timecode of the end of Chapter (timecode excluded, not scaled). define('EBML_ID_CUEREFTIME', 0x16); // [96] -- Timecode of the referenced Block. define('EBML_ID_CUEREFCLUSTER', 0x17); // [97] -- Position of the Cluster containing the referenced Block. define('EBML_ID_CHAPTERFLAGHIDDEN', 0x18); // [98] -- If a chapter is hidden (1), it should not be available to the user interface (but still to Control Tracks). define('EBML_ID_FLAGINTERLACED', 0x1A); // [9A] -- Set if the video is interlaced. define('EBML_ID_CLUSTERBLOCKDURATION', 0x1B); // [9B] -- The duration of the Block (based on TimecodeScale). This element is mandatory when DefaultDuration is set for the track. When not written and with no DefaultDuration, the value is assumed to be the difference between the timecode of this Block and the timecode of the next Block in "display" order (not coding order). This element can be useful at the end of a Track (as there is not other Block available), or when there is a break in a track like for subtitle tracks. define('EBML_ID_FLAGLACING', 0x1C); // [9C] -- Set if the track may contain blocks using lacing. define('EBML_ID_CHANNELS', 0x1F); // [9F] -- Numbers of channels in the track. define('EBML_ID_CLUSTERBLOCKGROUP', 0x20); // [A0] -- Basic container of information containing a single Block or BlockVirtual, and information specific to that Block/VirtualBlock. define('EBML_ID_CLUSTERBLOCK', 0x21); // [A1] -- Block containing the actual data to be rendered and a timecode relative to the Cluster Timecode. define('EBML_ID_CLUSTERBLOCKVIRTUAL', 0x22); // [A2] -- A Block with no data. It must be stored in the stream at the place the real Block should be in display order. define('EBML_ID_CLUSTERSIMPLEBLOCK', 0x23); // [A3] -- Similar to Block but without all the extra information, mostly used to reduced overhead when no extra feature is needed. define('EBML_ID_CLUSTERCODECSTATE', 0x24); // [A4] -- The new codec state to use. Data interpretation is private to the codec. This information should always be referenced by a seek entry. define('EBML_ID_CLUSTERBLOCKADDITIONAL', 0x25); // [A5] -- Interpreted by the codec as it wishes (using the BlockAddID). define('EBML_ID_CLUSTERBLOCKMORE', 0x26); // [A6] -- Contain the BlockAdditional and some parameters. define('EBML_ID_CLUSTERPOSITION', 0x27); // [A7] -- Position of the Cluster in the segment (0 in live broadcast streams). It might help to resynchronise offset on damaged streams. define('EBML_ID_CODECDECODEALL', 0x2A); // [AA] -- The codec can decode potentially damaged data. define('EBML_ID_CLUSTERPREVSIZE', 0x2B); // [AB] -- Size of the previous Cluster, in octets. Can be useful for backward playing. define('EBML_ID_TRACKENTRY', 0x2E); // [AE] -- Describes a track with all elements. define('EBML_ID_CLUSTERENCRYPTEDBLOCK', 0x2F); // [AF] -- Similar to SimpleBlock but the data inside the Block are Transformed (encrypt and/or signed). define('EBML_ID_PIXELWIDTH', 0x30); // [B0] -- Width of the encoded video frames in pixels. define('EBML_ID_CUETIME', 0x33); // [B3] -- Absolute timecode according to the segment time base. define('EBML_ID_SAMPLINGFREQUENCY', 0x35); // [B5] -- Sampling frequency in Hz. define('EBML_ID_CHAPTERATOM', 0x36); // [B6] -- Contains the atom information to use as the chapter atom (apply to all tracks). define('EBML_ID_CUETRACKPOSITIONS', 0x37); // [B7] -- Contain positions for different tracks corresponding to the timecode. define('EBML_ID_FLAGENABLED', 0x39); // [B9] -- Set if the track is used. define('EBML_ID_PIXELHEIGHT', 0x3A); // [BA] -- Height of the encoded video frames in pixels. define('EBML_ID_CUEPOINT', 0x3B); // [BB] -- Contains all information relative to a seek point in the segment. define('EBML_ID_CRC32', 0x3F); // [BF] -- The CRC is computed on all the data of the Master element it's in, regardless of its position. It's recommended to put the CRC value at the beggining of the Master element for easier reading. All level 1 elements should include a CRC-32. define('EBML_ID_CLUSTERBLOCKADDITIONID', 0x4B); // [CB] -- The ID of the BlockAdditional element (0 is the main Block). define('EBML_ID_CLUSTERLACENUMBER', 0x4C); // [CC] -- The reverse number of the frame in the lace (0 is the last frame, 1 is the next to last, etc). While there are a few files in the wild with this element, it is no longer in use and has been deprecated. Being able to interpret this element is not required for playback. define('EBML_ID_CLUSTERFRAMENUMBER', 0x4D); // [CD] -- The number of the frame to generate from this lace with this delay (allow you to generate many frames from the same Block/Frame). define('EBML_ID_CLUSTERDELAY', 0x4E); // [CE] -- The (scaled) delay to apply to the element. define('EBML_ID_CLUSTERDURATION', 0x4F); // [CF] -- The (scaled) duration to apply to the element. define('EBML_ID_TRACKNUMBER', 0x57); // [D7] -- The track number as used in the Block Header (using more than 127 tracks is not encouraged, though the design allows an unlimited number). define('EBML_ID_CUEREFERENCE', 0x5B); // [DB] -- The Clusters containing the required referenced Blocks. define('EBML_ID_VIDEO', 0x60); // [E0] -- Video settings. define('EBML_ID_AUDIO', 0x61); // [E1] -- Audio settings. define('EBML_ID_CLUSTERTIMESLICE', 0x68); // [E8] -- Contains extra time information about the data contained in the Block. While there are a few files in the wild with this element, it is no longer in use and has been deprecated. Being able to interpret this element is not required for playback. define('EBML_ID_CUECODECSTATE', 0x6A); // [EA] -- The position of the Codec State corresponding to this Cue element. 0 means that the data is taken from the initial Track Entry. define('EBML_ID_CUEREFCODECSTATE', 0x6B); // [EB] -- The position of the Codec State corresponding to this referenced element. 0 means that the data is taken from the initial Track Entry. define('EBML_ID_VOID', 0x6C); // [EC] -- Used to void damaged data, to avoid unexpected behaviors when using damaged data. The content is discarded. Also used to reserve space in a sub-element for later use. define('EBML_ID_CLUSTERTIMECODE', 0x67); // [E7] -- Absolute timecode of the cluster (based on TimecodeScale). define('EBML_ID_CLUSTERBLOCKADDID', 0x6E); // [EE] -- An ID to identify the BlockAdditional level. define('EBML_ID_CUECLUSTERPOSITION', 0x71); // [F1] -- The position of the Cluster containing the required Block. define('EBML_ID_CUETRACK', 0x77); // [F7] -- The track for which a position is given. define('EBML_ID_CLUSTERREFERENCEPRIORITY', 0x7A); // [FA] -- This frame is referenced and has the specified cache priority. In cache only a frame of the same or higher priority can replace this frame. A value of 0 means the frame is not referenced. define('EBML_ID_CLUSTERREFERENCEBLOCK', 0x7B); // [FB] -- Timecode of another frame used as a reference (ie: B or P frame). The timecode is relative to the block it's attached to. define('EBML_ID_CLUSTERREFERENCEVIRTUAL', 0x7D); // [FD] -- Relative position of the data that should be in position of the virtual block. /** * @tutorial http://www.matroska.org/technical/specs/index.html * * @todo Rewrite EBML parser to reduce it's size and honor default element values * @todo After rewrite implement stream size calculation, that will provide additional useful info and enable AAC/FLAC audio bitrate detection */ class getid3_matroska extends getid3_handler { /** * If true, do not return information about CLUSTER chunks, since there's a lot of them * and they're not usually useful [default: TRUE]. * * @var bool */ public $hide_clusters = true; /** * True to parse the whole file, not only header [default: FALSE]. * * @var bool */ public $parse_whole_file = false; /* * Private parser settings/placeholders. */ private $EBMLbuffer = ''; private $EBMLbuffer_offset = 0; private $EBMLbuffer_length = 0; private $current_offset = 0; private $unuseful_elements = array(EBML_ID_CRC32, EBML_ID_VOID); /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; // parse container try { $this->parseEBML($info); } catch (Exception $e) { $this->error('EBML parser: '.$e->getMessage()); } // calculate playtime if (isset($info['matroska']['info']) && is_array($info['matroska']['info'])) { foreach ($info['matroska']['info'] as $key => $infoarray) { if (isset($infoarray['Duration'])) { // TimecodeScale is how many nanoseconds each Duration unit is $info['playtime_seconds'] = $infoarray['Duration'] * ((isset($infoarray['TimecodeScale']) ? $infoarray['TimecodeScale'] : 1000000) / 1000000000); break; } } } // extract tags if (isset($info['matroska']['tags']) && is_array($info['matroska']['tags'])) { foreach ($info['matroska']['tags'] as $key => $infoarray) { $this->ExtractCommentsSimpleTag($infoarray); } } // process tracks if (isset($info['matroska']['tracks']['tracks']) && is_array($info['matroska']['tracks']['tracks'])) { foreach ($info['matroska']['tracks']['tracks'] as $key => $trackarray) { $track_info = array(); $track_info['dataformat'] = self::CodecIDtoCommonName($trackarray['CodecID']); $track_info['default'] = (isset($trackarray['FlagDefault']) ? $trackarray['FlagDefault'] : true); if (isset($trackarray['Name'])) { $track_info['name'] = $trackarray['Name']; } switch ($trackarray['TrackType']) { case 1: // Video $track_info['resolution_x'] = $trackarray['PixelWidth']; $track_info['resolution_y'] = $trackarray['PixelHeight']; $track_info['display_unit'] = self::displayUnit(isset($trackarray['DisplayUnit']) ? $trackarray['DisplayUnit'] : 0); $track_info['display_x'] = (isset($trackarray['DisplayWidth']) ? $trackarray['DisplayWidth'] : $trackarray['PixelWidth']); $track_info['display_y'] = (isset($trackarray['DisplayHeight']) ? $trackarray['DisplayHeight'] : $trackarray['PixelHeight']); if (isset($trackarray['PixelCropBottom'])) { $track_info['crop_bottom'] = $trackarray['PixelCropBottom']; } if (isset($trackarray['PixelCropTop'])) { $track_info['crop_top'] = $trackarray['PixelCropTop']; } if (isset($trackarray['PixelCropLeft'])) { $track_info['crop_left'] = $trackarray['PixelCropLeft']; } if (isset($trackarray['PixelCropRight'])) { $track_info['crop_right'] = $trackarray['PixelCropRight']; } if (!empty($trackarray['DefaultDuration'])) { $track_info['frame_rate'] = round(1000000000 / $trackarray['DefaultDuration'], 3); } if (isset($trackarray['CodecName'])) { $track_info['codec'] = $trackarray['CodecName']; } switch ($trackarray['CodecID']) { case 'V_MS/VFW/FOURCC': getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true); $parsed = getid3_riff::ParseBITMAPINFOHEADER($trackarray['CodecPrivate']); $track_info['codec'] = getid3_riff::fourccLookup($parsed['fourcc']); $info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $parsed; break; /*case 'V_MPEG4/ISO/AVC': $h264['profile'] = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 1, 1)); $h264['level'] = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 3, 1)); $rn = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 4, 1)); $h264['NALUlength'] = ($rn & 3) + 1; $rn = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], 5, 1)); $nsps = ($rn & 31); $offset = 6; for ($i = 0; $i < $nsps; $i ++) { $length = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], $offset, 2)); $h264['SPS'][] = substr($trackarray['CodecPrivate'], $offset + 2, $length); $offset += 2 + $length; } $npps = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], $offset, 1)); $offset += 1; for ($i = 0; $i < $npps; $i ++) { $length = getid3_lib::BigEndian2Int(substr($trackarray['CodecPrivate'], $offset, 2)); $h264['PPS'][] = substr($trackarray['CodecPrivate'], $offset + 2, $length); $offset += 2 + $length; } $info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $h264; break;*/ } $info['video']['streams'][$trackarray['TrackUID']] = $track_info; break; case 2: // Audio $track_info['sample_rate'] = (isset($trackarray['SamplingFrequency']) ? $trackarray['SamplingFrequency'] : 8000.0); $track_info['channels'] = (isset($trackarray['Channels']) ? $trackarray['Channels'] : 1); $track_info['language'] = (isset($trackarray['Language']) ? $trackarray['Language'] : 'eng'); if (isset($trackarray['BitDepth'])) { $track_info['bits_per_sample'] = $trackarray['BitDepth']; } if (isset($trackarray['CodecName'])) { $track_info['codec'] = $trackarray['CodecName']; } switch ($trackarray['CodecID']) { case 'A_PCM/INT/LIT': case 'A_PCM/INT/BIG': $track_info['bitrate'] = $track_info['sample_rate'] * $track_info['channels'] * $trackarray['BitDepth']; break; case 'A_AC3': case 'A_EAC3': case 'A_DTS': case 'A_MPEG/L3': case 'A_MPEG/L2': case 'A_FLAC': $module_dataformat = ($track_info['dataformat'] == 'mp2' ? 'mp3' : ($track_info['dataformat'] == 'eac3' ? 'ac3' : $track_info['dataformat'])); getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.'.$module_dataformat.'.php', __FILE__, true); if (!isset($info['matroska']['track_data_offsets'][$trackarray['TrackNumber']])) { $this->warning('Unable to parse audio data ['.basename(__FILE__).':'.__LINE__.'] because $info[matroska][track_data_offsets]['.$trackarray['TrackNumber'].'] not set'); break; } // create temp instance $getid3_temp = new getID3(); if ($track_info['dataformat'] != 'flac') { $getid3_temp->openfile($this->getid3->filename, $this->getid3->info['filesize'], $this->getid3->fp); } $getid3_temp->info['avdataoffset'] = $info['matroska']['track_data_offsets'][$trackarray['TrackNumber']]['offset']; if ($track_info['dataformat'][0] == 'm' || $track_info['dataformat'] == 'flac') { $getid3_temp->info['avdataend'] = $info['matroska']['track_data_offsets'][$trackarray['TrackNumber']]['offset'] + $info['matroska']['track_data_offsets'][$trackarray['TrackNumber']]['length']; } // analyze $class = 'getid3_'.$module_dataformat; $header_data_key = $track_info['dataformat'][0] == 'm' ? 'mpeg' : $track_info['dataformat']; $getid3_audio = new $class($getid3_temp, __CLASS__); if ($track_info['dataformat'] == 'flac') { $getid3_audio->AnalyzeString($trackarray['CodecPrivate']); } else { $getid3_audio->Analyze(); } if (!empty($getid3_temp->info[$header_data_key])) { $info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $getid3_temp->info[$header_data_key]; if (isset($getid3_temp->info['audio']) && is_array($getid3_temp->info['audio'])) { foreach ($getid3_temp->info['audio'] as $sub_key => $value) { $track_info[$sub_key] = $value; } } } else { $this->warning('Unable to parse audio data ['.basename(__FILE__).':'.__LINE__.'] because '.$class.'::Analyze() failed at offset '.$getid3_temp->info['avdataoffset']); } // copy errors and warnings if (!empty($getid3_temp->info['error'])) { foreach ($getid3_temp->info['error'] as $newerror) { $this->warning($class.'() says: ['.$newerror.']'); } } if (!empty($getid3_temp->info['warning'])) { foreach ($getid3_temp->info['warning'] as $newerror) { $this->warning($class.'() says: ['.$newerror.']'); } } unset($getid3_temp, $getid3_audio); break; case 'A_AAC': case 'A_AAC/MPEG2/LC': case 'A_AAC/MPEG2/LC/SBR': case 'A_AAC/MPEG4/LC': case 'A_AAC/MPEG4/LC/SBR': $this->warning($trackarray['CodecID'].' audio data contains no header, audio/video bitrates can\'t be calculated'); break; case 'A_VORBIS': if (!isset($trackarray['CodecPrivate'])) { $this->warning('Unable to parse audio data ['.basename(__FILE__).':'.__LINE__.'] because CodecPrivate data not set'); break; } $vorbis_offset = strpos($trackarray['CodecPrivate'], 'vorbis', 1); if ($vorbis_offset === false) { $this->warning('Unable to parse audio data ['.basename(__FILE__).':'.__LINE__.'] because CodecPrivate data does not contain "vorbis" keyword'); break; } $vorbis_offset -= 1; getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.ogg.php', __FILE__, true); // create temp instance $getid3_temp = new getID3(); // analyze $getid3_ogg = new getid3_ogg($getid3_temp); $oggpageinfo['page_seqno'] = 0; $getid3_ogg->ParseVorbisPageHeader($trackarray['CodecPrivate'], $vorbis_offset, $oggpageinfo); if (!empty($getid3_temp->info['ogg'])) { $info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $getid3_temp->info['ogg']; if (isset($getid3_temp->info['audio']) && is_array($getid3_temp->info['audio'])) { foreach ($getid3_temp->info['audio'] as $sub_key => $value) { $track_info[$sub_key] = $value; } } } // copy errors and warnings if (!empty($getid3_temp->info['error'])) { foreach ($getid3_temp->info['error'] as $newerror) { $this->warning('getid3_ogg() says: ['.$newerror.']'); } } if (!empty($getid3_temp->info['warning'])) { foreach ($getid3_temp->info['warning'] as $newerror) { $this->warning('getid3_ogg() says: ['.$newerror.']'); } } if (!empty($getid3_temp->info['ogg']['bitrate_nominal'])) { $track_info['bitrate'] = $getid3_temp->info['ogg']['bitrate_nominal']; } unset($getid3_temp, $getid3_ogg, $oggpageinfo, $vorbis_offset); break; case 'A_MS/ACM': getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true); $parsed = getid3_riff::parseWAVEFORMATex($trackarray['CodecPrivate']); foreach ($parsed as $sub_key => $value) { if ($sub_key != 'raw') { $track_info[$sub_key] = $value; } } $info['matroska']['track_codec_parsed'][$trackarray['TrackNumber']] = $parsed; break; default: $this->warning('Unhandled audio type "'.(isset($trackarray['CodecID']) ? $trackarray['CodecID'] : '').'"'); break; } $info['audio']['streams'][$trackarray['TrackUID']] = $track_info; break; } } if (!empty($info['video']['streams'])) { $info['video'] = self::getDefaultStreamInfo($info['video']['streams']); } if (!empty($info['audio']['streams'])) { $info['audio'] = self::getDefaultStreamInfo($info['audio']['streams']); } } // process attachments if (isset($info['matroska']['attachments']) && $this->getid3->option_save_attachments !== getID3::ATTACHMENTS_NONE) { foreach ($info['matroska']['attachments'] as $i => $entry) { if (strpos($entry['FileMimeType'], 'image/') === 0 && !empty($entry['FileData'])) { $info['matroska']['comments']['picture'][] = array('data' => $entry['FileData'], 'image_mime' => $entry['FileMimeType'], 'filename' => $entry['FileName']); } } } // determine mime type if (!empty($info['video']['streams'])) { $info['mime_type'] = ($info['matroska']['doctype'] == 'webm' ? 'video/webm' : 'video/x-matroska'); } elseif (!empty($info['audio']['streams'])) { $info['mime_type'] = ($info['matroska']['doctype'] == 'webm' ? 'audio/webm' : 'audio/x-matroska'); } elseif (isset($info['mime_type'])) { unset($info['mime_type']); } // use _STATISTICS_TAGS if available to set audio/video bitrates if (!empty($info['matroska']['tags'])) { $_STATISTICS_byTrackUID = array(); foreach ($info['matroska']['tags'] as $key1 => $value1) { if (!empty($value1['Targets']['TagTrackUID'][0]) && !empty($value1['SimpleTag'])) { foreach ($value1['SimpleTag'] as $key2 => $value2) { if (!empty($value2['TagName']) && isset($value2['TagString'])) { $_STATISTICS_byTrackUID[$value1['Targets']['TagTrackUID'][0]][$value2['TagName']] = $value2['TagString']; } } } } foreach (array('audio','video') as $avtype) { if (!empty($info[$avtype]['streams'])) { foreach ($info[$avtype]['streams'] as $trackUID => $trackdata) { if (!isset($trackdata['bitrate']) && !empty($_STATISTICS_byTrackUID[$trackUID]['BPS'])) { $info[$avtype]['streams'][$trackUID]['bitrate'] = (int) $_STATISTICS_byTrackUID[$trackUID]['BPS']; @$info[$avtype]['bitrate'] += $info[$avtype]['streams'][$trackUID]['bitrate']; } } } } } return true; } /** * @param array $info */ private function parseEBML(&$info) { // http://www.matroska.org/technical/specs/index.html#EBMLBasics $this->current_offset = $info['avdataoffset']; while ($this->getEBMLelement($top_element, $info['avdataend'])) { switch ($top_element['id']) { case EBML_ID_EBML: $info['matroska']['header']['offset'] = $top_element['offset']; $info['matroska']['header']['length'] = $top_element['length']; while ($this->getEBMLelement($element_data, $top_element['end'], true)) { switch ($element_data['id']) { case EBML_ID_EBMLVERSION: case EBML_ID_EBMLREADVERSION: case EBML_ID_EBMLMAXIDLENGTH: case EBML_ID_EBMLMAXSIZELENGTH: case EBML_ID_DOCTYPEVERSION: case EBML_ID_DOCTYPEREADVERSION: $element_data['data'] = getid3_lib::BigEndian2Int($element_data['data']); break; case EBML_ID_DOCTYPE: $element_data['data'] = getid3_lib::trimNullByte($element_data['data']); $info['matroska']['doctype'] = $element_data['data']; $info['fileformat'] = $element_data['data']; break; default: $this->unhandledElement('header', __LINE__, $element_data); break; } unset($element_data['offset'], $element_data['end']); $info['matroska']['header']['elements'][] = $element_data; } break; case EBML_ID_SEGMENT: $info['matroska']['segment'][0]['offset'] = $top_element['offset']; $info['matroska']['segment'][0]['length'] = $top_element['length']; while ($this->getEBMLelement($element_data, $top_element['end'])) { if ($element_data['id'] != EBML_ID_CLUSTER || !$this->hide_clusters) { // collect clusters only if required $info['matroska']['segments'][] = $element_data; } switch ($element_data['id']) { case EBML_ID_SEEKHEAD: // Contains the position of other level 1 elements. while ($this->getEBMLelement($seek_entry, $element_data['end'])) { switch ($seek_entry['id']) { case EBML_ID_SEEK: // Contains a single seek entry to an EBML element while ($this->getEBMLelement($sub_seek_entry, $seek_entry['end'], true)) { switch ($sub_seek_entry['id']) { case EBML_ID_SEEKID: $seek_entry['target_id'] = self::EBML2Int($sub_seek_entry['data']); $seek_entry['target_name'] = self::EBMLidName($seek_entry['target_id']); break; case EBML_ID_SEEKPOSITION: $seek_entry['target_offset'] = $element_data['offset'] + getid3_lib::BigEndian2Int($sub_seek_entry['data']); break; default: $this->unhandledElement('seekhead.seek', __LINE__, $sub_seek_entry); } break; } if (!isset($seek_entry['target_id'])) { $this->warning('seek_entry[target_id] unexpectedly not set at '.$seek_entry['offset']); break; } if (($seek_entry['target_id'] != EBML_ID_CLUSTER) || !$this->hide_clusters) { // collect clusters only if required $info['matroska']['seek'][] = $seek_entry; } break; default: $this->unhandledElement('seekhead', __LINE__, $seek_entry); break; } } break; case EBML_ID_TRACKS: // A top-level block of information with many tracks described. $info['matroska']['tracks'] = $element_data; while ($this->getEBMLelement($track_entry, $element_data['end'])) { switch ($track_entry['id']) { case EBML_ID_TRACKENTRY: //subelements: Describes a track with all elements. while ($this->getEBMLelement($subelement, $track_entry['end'], array(EBML_ID_VIDEO, EBML_ID_AUDIO, EBML_ID_CONTENTENCODINGS, EBML_ID_CODECPRIVATE))) { switch ($subelement['id']) { case EBML_ID_TRACKUID: $track_entry[$subelement['id_name']] = getid3_lib::PrintHexBytes($subelement['data'], true, false); break; case EBML_ID_TRACKNUMBER: case EBML_ID_TRACKTYPE: case EBML_ID_MINCACHE: case EBML_ID_MAXCACHE: case EBML_ID_MAXBLOCKADDITIONID: case EBML_ID_DEFAULTDURATION: // nanoseconds per frame $track_entry[$subelement['id_name']] = getid3_lib::BigEndian2Int($subelement['data']); break; case EBML_ID_TRACKTIMECODESCALE: $track_entry[$subelement['id_name']] = getid3_lib::BigEndian2Float($subelement['data']); break; case EBML_ID_CODECID: case EBML_ID_LANGUAGE: case EBML_ID_NAME: case EBML_ID_CODECNAME: $track_entry[$subelement['id_name']] = getid3_lib::trimNullByte($subelement['data']); break; case EBML_ID_CODECPRIVATE: $track_entry[$subelement['id_name']] = $this->readEBMLelementData($subelement['length'], true); break; case EBML_ID_FLAGENABLED: case EBML_ID_FLAGDEFAULT: case EBML_ID_FLAGFORCED: case EBML_ID_FLAGLACING: case EBML_ID_CODECDECODEALL: $track_entry[$subelement['id_name']] = (bool) getid3_lib::BigEndian2Int($subelement['data']); break; case EBML_ID_VIDEO: while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) { switch ($sub_subelement['id']) { case EBML_ID_PIXELWIDTH: case EBML_ID_PIXELHEIGHT: case EBML_ID_PIXELCROPBOTTOM: case EBML_ID_PIXELCROPTOP: case EBML_ID_PIXELCROPLEFT: case EBML_ID_PIXELCROPRIGHT: case EBML_ID_DISPLAYWIDTH: case EBML_ID_DISPLAYHEIGHT: case EBML_ID_DISPLAYUNIT: case EBML_ID_ASPECTRATIOTYPE: case EBML_ID_STEREOMODE: case EBML_ID_OLDSTEREOMODE: $track_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_FLAGINTERLACED: $track_entry[$sub_subelement['id_name']] = (bool)getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_GAMMAVALUE: $track_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Float($sub_subelement['data']); break; case EBML_ID_COLOURSPACE: $track_entry[$sub_subelement['id_name']] = getid3_lib::trimNullByte($sub_subelement['data']); break; default: $this->unhandledElement('track.video', __LINE__, $sub_subelement); break; } } break; case EBML_ID_AUDIO: while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) { switch ($sub_subelement['id']) { case EBML_ID_CHANNELS: case EBML_ID_BITDEPTH: $track_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_SAMPLINGFREQUENCY: case EBML_ID_OUTPUTSAMPLINGFREQUENCY: $track_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Float($sub_subelement['data']); break; case EBML_ID_CHANNELPOSITIONS: $track_entry[$sub_subelement['id_name']] = getid3_lib::trimNullByte($sub_subelement['data']); break; default: $this->unhandledElement('track.audio', __LINE__, $sub_subelement); break; } } break; case EBML_ID_CONTENTENCODINGS: while ($this->getEBMLelement($sub_subelement, $subelement['end'])) { switch ($sub_subelement['id']) { case EBML_ID_CONTENTENCODING: while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], array(EBML_ID_CONTENTCOMPRESSION, EBML_ID_CONTENTENCRYPTION))) { switch ($sub_sub_subelement['id']) { case EBML_ID_CONTENTENCODINGORDER: case EBML_ID_CONTENTENCODINGSCOPE: case EBML_ID_CONTENTENCODINGTYPE: $track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_subelement['data']); break; case EBML_ID_CONTENTCOMPRESSION: while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) { switch ($sub_sub_sub_subelement['id']) { case EBML_ID_CONTENTCOMPALGO: $track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_sub_subelement['data']); break; case EBML_ID_CONTENTCOMPSETTINGS: $track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data']; break; default: $this->unhandledElement('track.contentencodings.contentencoding.contentcompression', __LINE__, $sub_sub_sub_subelement); break; } } break; case EBML_ID_CONTENTENCRYPTION: while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) { switch ($sub_sub_sub_subelement['id']) { case EBML_ID_CONTENTENCALGO: case EBML_ID_CONTENTSIGALGO: case EBML_ID_CONTENTSIGHASHALGO: $track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_sub_subelement['data']); break; case EBML_ID_CONTENTENCKEYID: case EBML_ID_CONTENTSIGNATURE: case EBML_ID_CONTENTSIGKEYID: $track_entry[$sub_subelement['id_name']][$sub_sub_subelement['id_name']][$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data']; break; default: $this->unhandledElement('track.contentencodings.contentencoding.contentcompression', __LINE__, $sub_sub_sub_subelement); break; } } break; default: $this->unhandledElement('track.contentencodings.contentencoding', __LINE__, $sub_sub_subelement); break; } } break; default: $this->unhandledElement('track.contentencodings', __LINE__, $sub_subelement); break; } } break; default: $this->unhandledElement('track', __LINE__, $subelement); break; } } $info['matroska']['tracks']['tracks'][] = $track_entry; break; default: $this->unhandledElement('tracks', __LINE__, $track_entry); break; } } break; case EBML_ID_INFO: // Contains miscellaneous general information and statistics on the file. $info_entry = array(); while ($this->getEBMLelement($subelement, $element_data['end'], true)) { switch ($subelement['id']) { case EBML_ID_TIMECODESCALE: $info_entry[$subelement['id_name']] = getid3_lib::BigEndian2Int($subelement['data']); break; case EBML_ID_DURATION: $info_entry[$subelement['id_name']] = getid3_lib::BigEndian2Float($subelement['data']); break; case EBML_ID_DATEUTC: $info_entry[$subelement['id_name']] = getid3_lib::BigEndian2Int($subelement['data']); $info_entry[$subelement['id_name'].'_unix'] = self::EBMLdate2unix($info_entry[$subelement['id_name']]); break; case EBML_ID_SEGMENTUID: case EBML_ID_PREVUID: case EBML_ID_NEXTUID: $info_entry[$subelement['id_name']] = getid3_lib::trimNullByte($subelement['data']); break; case EBML_ID_SEGMENTFAMILY: $info_entry[$subelement['id_name']][] = getid3_lib::trimNullByte($subelement['data']); break; case EBML_ID_SEGMENTFILENAME: case EBML_ID_PREVFILENAME: case EBML_ID_NEXTFILENAME: case EBML_ID_TITLE: case EBML_ID_MUXINGAPP: case EBML_ID_WRITINGAPP: $info_entry[$subelement['id_name']] = getid3_lib::trimNullByte($subelement['data']); $info['matroska']['comments'][strtolower($subelement['id_name'])][] = $info_entry[$subelement['id_name']]; break; case EBML_ID_CHAPTERTRANSLATE: $chaptertranslate_entry = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) { switch ($sub_subelement['id']) { case EBML_ID_CHAPTERTRANSLATEEDITIONUID: $chaptertranslate_entry[$sub_subelement['id_name']][] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_CHAPTERTRANSLATECODEC: $chaptertranslate_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_CHAPTERTRANSLATEID: $chaptertranslate_entry[$sub_subelement['id_name']] = getid3_lib::trimNullByte($sub_subelement['data']); break; default: $this->unhandledElement('info.chaptertranslate', __LINE__, $sub_subelement); break; } } $info_entry[$subelement['id_name']] = $chaptertranslate_entry; break; default: $this->unhandledElement('info', __LINE__, $subelement); break; } } $info['matroska']['info'][] = $info_entry; break; case EBML_ID_CUES: // A top-level element to speed seeking access. All entries are local to the segment. Should be mandatory for non "live" streams. if ($this->hide_clusters) { // do not parse cues if hide clusters is "ON" till they point to clusters anyway $this->current_offset = $element_data['end']; break; } $cues_entry = array(); while ($this->getEBMLelement($subelement, $element_data['end'])) { switch ($subelement['id']) { case EBML_ID_CUEPOINT: $cuepoint_entry = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], array(EBML_ID_CUETRACKPOSITIONS))) { switch ($sub_subelement['id']) { case EBML_ID_CUETRACKPOSITIONS: $cuetrackpositions_entry = array(); while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], true)) { switch ($sub_sub_subelement['id']) { case EBML_ID_CUETRACK: case EBML_ID_CUECLUSTERPOSITION: case EBML_ID_CUEBLOCKNUMBER: case EBML_ID_CUECODECSTATE: $cuetrackpositions_entry[$sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_subelement['data']); break; default: $this->unhandledElement('cues.cuepoint.cuetrackpositions', __LINE__, $sub_sub_subelement); break; } } $cuepoint_entry[$sub_subelement['id_name']][] = $cuetrackpositions_entry; break; case EBML_ID_CUETIME: $cuepoint_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; default: $this->unhandledElement('cues.cuepoint', __LINE__, $sub_subelement); break; } } $cues_entry[] = $cuepoint_entry; break; default: $this->unhandledElement('cues', __LINE__, $subelement); break; } } $info['matroska']['cues'] = $cues_entry; break; case EBML_ID_TAGS: // Element containing elements specific to Tracks/Chapters. $tags_entry = array(); while ($this->getEBMLelement($subelement, $element_data['end'], false)) { switch ($subelement['id']) { case EBML_ID_TAG: $tag_entry = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], false)) { switch ($sub_subelement['id']) { case EBML_ID_TARGETS: $targets_entry = array(); while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], true)) { switch ($sub_sub_subelement['id']) { case EBML_ID_TARGETTYPEVALUE: $targets_entry[$sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_subelement['data']); $targets_entry[strtolower($sub_sub_subelement['id_name']).'_long'] = self::TargetTypeValue($targets_entry[$sub_sub_subelement['id_name']]); break; case EBML_ID_TARGETTYPE: $targets_entry[$sub_sub_subelement['id_name']] = $sub_sub_subelement['data']; break; case EBML_ID_TAGTRACKUID: case EBML_ID_TAGEDITIONUID: case EBML_ID_TAGCHAPTERUID: case EBML_ID_TAGATTACHMENTUID: $targets_entry[$sub_sub_subelement['id_name']][] = getid3_lib::PrintHexBytes($sub_sub_subelement['data'], true, false); break; default: $this->unhandledElement('tags.tag.targets', __LINE__, $sub_sub_subelement); break; } } $tag_entry[$sub_subelement['id_name']] = $targets_entry; break; case EBML_ID_SIMPLETAG: $tag_entry[$sub_subelement['id_name']][] = $this->HandleEMBLSimpleTag($sub_subelement['end']); break; default: $this->unhandledElement('tags.tag', __LINE__, $sub_subelement); break; } } $tags_entry[] = $tag_entry; break; default: $this->unhandledElement('tags', __LINE__, $subelement); break; } } $info['matroska']['tags'] = $tags_entry; break; case EBML_ID_ATTACHMENTS: // Contain attached files. while ($this->getEBMLelement($subelement, $element_data['end'])) { switch ($subelement['id']) { case EBML_ID_ATTACHEDFILE: $attachedfile_entry = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], array(EBML_ID_FILEDATA))) { switch ($sub_subelement['id']) { case EBML_ID_FILEDESCRIPTION: case EBML_ID_FILENAME: case EBML_ID_FILEMIMETYPE: $attachedfile_entry[$sub_subelement['id_name']] = $sub_subelement['data']; break; case EBML_ID_FILEDATA: $attachedfile_entry['data_offset'] = $this->current_offset; $attachedfile_entry['data_length'] = $sub_subelement['length']; $attachedfile_entry[$sub_subelement['id_name']] = $this->saveAttachment( $attachedfile_entry['FileName'], $attachedfile_entry['data_offset'], $attachedfile_entry['data_length']); $this->current_offset = $sub_subelement['end']; break; case EBML_ID_FILEUID: $attachedfile_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; default: $this->unhandledElement('attachments.attachedfile', __LINE__, $sub_subelement); break; } } $info['matroska']['attachments'][] = $attachedfile_entry; break; default: $this->unhandledElement('attachments', __LINE__, $subelement); break; } } break; case EBML_ID_CHAPTERS: while ($this->getEBMLelement($subelement, $element_data['end'])) { switch ($subelement['id']) { case EBML_ID_EDITIONENTRY: $editionentry_entry = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], array(EBML_ID_CHAPTERATOM))) { switch ($sub_subelement['id']) { case EBML_ID_EDITIONUID: $editionentry_entry[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_EDITIONFLAGHIDDEN: case EBML_ID_EDITIONFLAGDEFAULT: case EBML_ID_EDITIONFLAGORDERED: $editionentry_entry[$sub_subelement['id_name']] = (bool)getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_CHAPTERATOM: $chapteratom_entry = array(); while ($this->getEBMLelement($sub_sub_subelement, $sub_subelement['end'], array(EBML_ID_CHAPTERTRACK, EBML_ID_CHAPTERDISPLAY))) { switch ($sub_sub_subelement['id']) { case EBML_ID_CHAPTERSEGMENTUID: case EBML_ID_CHAPTERSEGMENTEDITIONUID: $chapteratom_entry[$sub_sub_subelement['id_name']] = $sub_sub_subelement['data']; break; case EBML_ID_CHAPTERFLAGENABLED: case EBML_ID_CHAPTERFLAGHIDDEN: $chapteratom_entry[$sub_sub_subelement['id_name']] = (bool)getid3_lib::BigEndian2Int($sub_sub_subelement['data']); break; case EBML_ID_CHAPTERUID: case EBML_ID_CHAPTERTIMESTART: case EBML_ID_CHAPTERTIMEEND: $chapteratom_entry[$sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_subelement['data']); break; case EBML_ID_CHAPTERTRACK: $chaptertrack_entry = array(); while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) { switch ($sub_sub_sub_subelement['id']) { case EBML_ID_CHAPTERTRACKNUMBER: $chaptertrack_entry[$sub_sub_sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_sub_sub_subelement['data']); break; default: $this->unhandledElement('chapters.editionentry.chapteratom.chaptertrack', __LINE__, $sub_sub_sub_subelement); break; } } $chapteratom_entry[$sub_sub_subelement['id_name']][] = $chaptertrack_entry; break; case EBML_ID_CHAPTERDISPLAY: $chapterdisplay_entry = array(); while ($this->getEBMLelement($sub_sub_sub_subelement, $sub_sub_subelement['end'], true)) { switch ($sub_sub_sub_subelement['id']) { case EBML_ID_CHAPSTRING: case EBML_ID_CHAPLANGUAGE: case EBML_ID_CHAPCOUNTRY: $chapterdisplay_entry[$sub_sub_sub_subelement['id_name']] = $sub_sub_sub_subelement['data']; break; default: $this->unhandledElement('chapters.editionentry.chapteratom.chapterdisplay', __LINE__, $sub_sub_sub_subelement); break; } } $chapteratom_entry[$sub_sub_subelement['id_name']][] = $chapterdisplay_entry; break; default: $this->unhandledElement('chapters.editionentry.chapteratom', __LINE__, $sub_sub_subelement); break; } } $editionentry_entry[$sub_subelement['id_name']][] = $chapteratom_entry; break; default: $this->unhandledElement('chapters.editionentry', __LINE__, $sub_subelement); break; } } $info['matroska']['chapters'][] = $editionentry_entry; break; default: $this->unhandledElement('chapters', __LINE__, $subelement); break; } } break; case EBML_ID_CLUSTER: // The lower level element containing the (monolithic) Block structure. $cluster_entry = array(); while ($this->getEBMLelement($subelement, $element_data['end'], array(EBML_ID_CLUSTERSILENTTRACKS, EBML_ID_CLUSTERBLOCKGROUP, EBML_ID_CLUSTERSIMPLEBLOCK))) { switch ($subelement['id']) { case EBML_ID_CLUSTERTIMECODE: case EBML_ID_CLUSTERPOSITION: case EBML_ID_CLUSTERPREVSIZE: $cluster_entry[$subelement['id_name']] = getid3_lib::BigEndian2Int($subelement['data']); break; case EBML_ID_CLUSTERSILENTTRACKS: $cluster_silent_tracks = array(); while ($this->getEBMLelement($sub_subelement, $subelement['end'], true)) { switch ($sub_subelement['id']) { case EBML_ID_CLUSTERSILENTTRACKNUMBER: $cluster_silent_tracks[] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; default: $this->unhandledElement('cluster.silenttracks', __LINE__, $sub_subelement); break; } } $cluster_entry[$subelement['id_name']][] = $cluster_silent_tracks; break; case EBML_ID_CLUSTERBLOCKGROUP: $cluster_block_group = array('offset' => $this->current_offset); while ($this->getEBMLelement($sub_subelement, $subelement['end'], array(EBML_ID_CLUSTERBLOCK))) { switch ($sub_subelement['id']) { case EBML_ID_CLUSTERBLOCK: $cluster_block_group[$sub_subelement['id_name']] = $this->HandleEMBLClusterBlock($sub_subelement, EBML_ID_CLUSTERBLOCK, $info); break; case EBML_ID_CLUSTERREFERENCEPRIORITY: // unsigned-int case EBML_ID_CLUSTERBLOCKDURATION: // unsigned-int $cluster_block_group[$sub_subelement['id_name']] = getid3_lib::BigEndian2Int($sub_subelement['data']); break; case EBML_ID_CLUSTERREFERENCEBLOCK: // signed-int $cluster_block_group[$sub_subelement['id_name']][] = getid3_lib::BigEndian2Int($sub_subelement['data'], false, true); break; case EBML_ID_CLUSTERCODECSTATE: $cluster_block_group[$sub_subelement['id_name']] = getid3_lib::trimNullByte($sub_subelement['data']); break; default: $this->unhandledElement('clusters.blockgroup', __LINE__, $sub_subelement); break; } } $cluster_entry[$subelement['id_name']][] = $cluster_block_group; break; case EBML_ID_CLUSTERSIMPLEBLOCK: $cluster_entry[$subelement['id_name']][] = $this->HandleEMBLClusterBlock($subelement, EBML_ID_CLUSTERSIMPLEBLOCK, $info); break; default: $this->unhandledElement('cluster', __LINE__, $subelement); break; } $this->current_offset = $subelement['end']; } if (!$this->hide_clusters) { $info['matroska']['cluster'][] = $cluster_entry; } // check to see if all the data we need exists already, if so, break out of the loop if (!$this->parse_whole_file) { if (isset($info['matroska']['info']) && is_array($info['matroska']['info'])) { if (isset($info['matroska']['tracks']['tracks']) && is_array($info['matroska']['tracks']['tracks'])) { if (count($info['matroska']['track_data_offsets']) == count($info['matroska']['tracks']['tracks'])) { return; } } } } break; default: $this->unhandledElement('segment', __LINE__, $element_data); break; } } break; default: $this->unhandledElement('root', __LINE__, $top_element); break; } } } /** * @param int $min_data * * @return bool */ private function EnsureBufferHasEnoughData($min_data=1024) { if (($this->current_offset - $this->EBMLbuffer_offset) >= ($this->EBMLbuffer_length - $min_data)) { $read_bytes = max($min_data, $this->getid3->fread_buffer_size()); try { $this->fseek($this->current_offset); $this->EBMLbuffer_offset = $this->current_offset; $this->EBMLbuffer = $this->fread($read_bytes); $this->EBMLbuffer_length = strlen($this->EBMLbuffer); } catch (getid3_exception $e) { $this->warning('EBML parser: '.$e->getMessage()); return false; } if ($this->EBMLbuffer_length == 0 && $this->feof()) { return $this->error('EBML parser: ran out of file at offset '.$this->current_offset); } } return true; } /** * @return int|float|false */ private function readEBMLint() { $actual_offset = $this->current_offset - $this->EBMLbuffer_offset; // get length of integer $first_byte_int = ord($this->EBMLbuffer[$actual_offset]); if (0x80 & $first_byte_int) { $length = 1; } elseif (0x40 & $first_byte_int) { $length = 2; } elseif (0x20 & $first_byte_int) { $length = 3; } elseif (0x10 & $first_byte_int) { $length = 4; } elseif (0x08 & $first_byte_int) { $length = 5; } elseif (0x04 & $first_byte_int) { $length = 6; } elseif (0x02 & $first_byte_int) { $length = 7; } elseif (0x01 & $first_byte_int) { $length = 8; } else { throw new Exception('invalid EBML integer (leading 0x00) at '.$this->current_offset); } // read $int_value = self::EBML2Int(substr($this->EBMLbuffer, $actual_offset, $length)); $this->current_offset += $length; return $int_value; } /** * @param int $length * @param bool $check_buffer * * @return string|false */ private function readEBMLelementData($length, $check_buffer=false) { if ($check_buffer && !$this->EnsureBufferHasEnoughData($length)) { return false; } $data = substr($this->EBMLbuffer, $this->current_offset - $this->EBMLbuffer_offset, $length); $this->current_offset += $length; return $data; } /** * @param array $element * @param int $parent_end * @param array|bool $get_data * * @return bool */ private function getEBMLelement(&$element, $parent_end, $get_data=false) { if ($this->current_offset >= $parent_end) { return false; } if (!$this->EnsureBufferHasEnoughData()) { $this->current_offset = PHP_INT_MAX; // do not exit parser right now, allow to finish current loop to gather maximum information return false; } $element = array(); // set offset $element['offset'] = $this->current_offset; // get ID $element['id'] = $this->readEBMLint(); // get name $element['id_name'] = self::EBMLidName($element['id']); // get length $element['length'] = $this->readEBMLint(); // get end offset $element['end'] = $this->current_offset + $element['length']; // get raw data $dont_parse = (in_array($element['id'], $this->unuseful_elements) || $element['id_name'] == dechex($element['id'])); if (($get_data === true || (is_array($get_data) && !in_array($element['id'], $get_data))) && !$dont_parse) { $element['data'] = $this->readEBMLelementData($element['length'], $element); } return true; } /** * @param string $type * @param int $line * @param array $element */ private function unhandledElement($type, $line, $element) { // warn only about unknown and missed elements, not about unuseful if (!in_array($element['id'], $this->unuseful_elements)) { $this->warning('Unhandled '.$type.' element ['.basename(__FILE__).':'.$line.'] ('.$element['id'].'::'.$element['id_name'].' ['.$element['length'].' bytes]) at '.$element['offset']); } // increase offset for unparsed elements if (!isset($element['data'])) { $this->current_offset = $element['end']; } } /** * @param array $SimpleTagArray * * @return bool */ private function ExtractCommentsSimpleTag($SimpleTagArray) { if (!empty($SimpleTagArray['SimpleTag'])) { foreach ($SimpleTagArray['SimpleTag'] as $SimpleTagKey => $SimpleTagData) { if (!empty($SimpleTagData['TagName']) && !empty($SimpleTagData['TagString'])) { $this->getid3->info['matroska']['comments'][strtolower($SimpleTagData['TagName'])][] = $SimpleTagData['TagString']; } if (!empty($SimpleTagData['SimpleTag'])) { $this->ExtractCommentsSimpleTag($SimpleTagData); } } } return true; } /** * @param int $parent_end * * @return array */ private function HandleEMBLSimpleTag($parent_end) { $simpletag_entry = array(); while ($this->getEBMLelement($element, $parent_end, array(EBML_ID_SIMPLETAG))) { switch ($element['id']) { case EBML_ID_TAGNAME: case EBML_ID_TAGLANGUAGE: case EBML_ID_TAGSTRING: case EBML_ID_TAGBINARY: $simpletag_entry[$element['id_name']] = $element['data']; break; case EBML_ID_SIMPLETAG: $simpletag_entry[$element['id_name']][] = $this->HandleEMBLSimpleTag($element['end']); break; case EBML_ID_TAGDEFAULT: $simpletag_entry[$element['id_name']] = (bool)getid3_lib::BigEndian2Int($element['data']); break; default: $this->unhandledElement('tag.simpletag', __LINE__, $element); break; } } return $simpletag_entry; } /** * @param array $element * @param int $block_type * @param array $info * * @return array */ private function HandleEMBLClusterBlock($element, $block_type, &$info) { // http://www.matroska.org/technical/specs/index.html#block_structure // http://www.matroska.org/technical/specs/index.html#simpleblock_structure $block_data = array(); $block_data['tracknumber'] = $this->readEBMLint(); $block_data['timecode'] = getid3_lib::BigEndian2Int($this->readEBMLelementData(2), false, true); $block_data['flags_raw'] = getid3_lib::BigEndian2Int($this->readEBMLelementData(1)); if ($block_type == EBML_ID_CLUSTERSIMPLEBLOCK) { $block_data['flags']['keyframe'] = (($block_data['flags_raw'] & 0x80) >> 7); //$block_data['flags']['reserved1'] = (($block_data['flags_raw'] & 0x70) >> 4); } else { //$block_data['flags']['reserved1'] = (($block_data['flags_raw'] & 0xF0) >> 4); } $block_data['flags']['invisible'] = (bool)(($block_data['flags_raw'] & 0x08) >> 3); $block_data['flags']['lacing'] = (($block_data['flags_raw'] & 0x06) >> 1); // 00=no lacing; 01=Xiph lacing; 11=EBML lacing; 10=fixed-size lacing if ($block_type == EBML_ID_CLUSTERSIMPLEBLOCK) { $block_data['flags']['discardable'] = (($block_data['flags_raw'] & 0x01)); } else { //$block_data['flags']['reserved2'] = (($block_data['flags_raw'] & 0x01) >> 0); } $block_data['flags']['lacing_type'] = self::BlockLacingType($block_data['flags']['lacing']); // Lace (when lacing bit is set) if ($block_data['flags']['lacing'] > 0) { $block_data['lace_frames'] = getid3_lib::BigEndian2Int($this->readEBMLelementData(1)) + 1; // Number of frames in the lace-1 (uint8) if ($block_data['flags']['lacing'] != 0x02) { for ($i = 1; $i < $block_data['lace_frames']; $i ++) { // Lace-coded size of each frame of the lace, except for the last one (multiple uint8). *This is not used with Fixed-size lacing as it is calculated automatically from (total size of lace) / (number of frames in lace). if ($block_data['flags']['lacing'] == 0x03) { // EBML lacing $block_data['lace_frames_size'][$i] = $this->readEBMLint(); // TODO: read size correctly, calc size for the last frame. For now offsets are deteminded OK with readEBMLint() and that's the most important thing. } else { // Xiph lacing $block_data['lace_frames_size'][$i] = 0; do { $size = getid3_lib::BigEndian2Int($this->readEBMLelementData(1)); $block_data['lace_frames_size'][$i] += $size; } while ($size == 255); } } if ($block_data['flags']['lacing'] == 0x01) { // calc size of the last frame only for Xiph lacing, till EBML sizes are now anyway determined incorrectly $block_data['lace_frames_size'][] = $element['end'] - $this->current_offset - array_sum($block_data['lace_frames_size']); } } } if (!isset($info['matroska']['track_data_offsets'][$block_data['tracknumber']])) { $info['matroska']['track_data_offsets'][$block_data['tracknumber']]['offset'] = $this->current_offset; $info['matroska']['track_data_offsets'][$block_data['tracknumber']]['length'] = $element['end'] - $this->current_offset; //$info['matroska']['track_data_offsets'][$block_data['tracknumber']]['total_length'] = 0; } //$info['matroska']['track_data_offsets'][$block_data['tracknumber']]['total_length'] += $info['matroska']['track_data_offsets'][$block_data['tracknumber']]['length']; //$info['matroska']['track_data_offsets'][$block_data['tracknumber']]['duration'] = $block_data['timecode'] * ((isset($info['matroska']['info'][0]['TimecodeScale']) ? $info['matroska']['info'][0]['TimecodeScale'] : 1000000) / 1000000000); // set offset manually $this->current_offset = $element['end']; return $block_data; } /** * @param string $EBMLstring * * @return int|float|false */ private static function EBML2Int($EBMLstring) { // http://matroska.org/specs/ // Element ID coded with an UTF-8 like system: // 1xxx xxxx - Class A IDs (2^7 -2 possible values) (base 0x8X) // 01xx xxxx xxxx xxxx - Class B IDs (2^14-2 possible values) (base 0x4X 0xXX) // 001x xxxx xxxx xxxx xxxx xxxx - Class C IDs (2^21-2 possible values) (base 0x2X 0xXX 0xXX) // 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - Class D IDs (2^28-2 possible values) (base 0x1X 0xXX 0xXX 0xXX) // Values with all x at 0 and 1 are reserved (hence the -2). // Data size, in octets, is also coded with an UTF-8 like system : // 1xxx xxxx - value 0 to 2^7-2 // 01xx xxxx xxxx xxxx - value 0 to 2^14-2 // 001x xxxx xxxx xxxx xxxx xxxx - value 0 to 2^21-2 // 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^28-2 // 0000 1xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^35-2 // 0000 01xx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^42-2 // 0000 001x xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^49-2 // 0000 0001 xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx - value 0 to 2^56-2 $first_byte_int = ord($EBMLstring[0]); if (0x80 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x7F); } elseif (0x40 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x3F); } elseif (0x20 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x1F); } elseif (0x10 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x0F); } elseif (0x08 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x07); } elseif (0x04 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x03); } elseif (0x02 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x01); } elseif (0x01 & $first_byte_int) { $EBMLstring[0] = chr($first_byte_int & 0x00); } return getid3_lib::BigEndian2Int($EBMLstring); } /** * @param int $EBMLdatestamp * * @return float */ private static function EBMLdate2unix($EBMLdatestamp) { // Date - signed 8 octets integer in nanoseconds with 0 indicating the precise beginning of the millennium (at 2001-01-01T00:00:00,000000000 UTC) // 978307200 == mktime(0, 0, 0, 1, 1, 2001) == January 1, 2001 12:00:00am UTC return round(($EBMLdatestamp / 1000000000) + 978307200); } /** * @param int $target_type * * @return string|int */ public static function TargetTypeValue($target_type) { // http://www.matroska.org/technical/specs/tagging/index.html static $TargetTypeValue = array(); if (empty($TargetTypeValue)) { $TargetTypeValue[10] = 'A: ~ V:shot'; // the lowest hierarchy found in music or movies $TargetTypeValue[20] = 'A:subtrack/part/movement ~ V:scene'; // corresponds to parts of a track for audio (like a movement) $TargetTypeValue[30] = 'A:track/song ~ V:chapter'; // the common parts of an album or a movie $TargetTypeValue[40] = 'A:part/session ~ V:part/session'; // when an album or episode has different logical parts $TargetTypeValue[50] = 'A:album/opera/concert ~ V:movie/episode/concert'; // the most common grouping level of music and video (equals to an episode for TV series) $TargetTypeValue[60] = 'A:edition/issue/volume/opus ~ V:season/sequel/volume'; // a list of lower levels grouped together $TargetTypeValue[70] = 'A:collection ~ V:collection'; // the high hierarchy consisting of many different lower items } return (isset($TargetTypeValue[$target_type]) ? $TargetTypeValue[$target_type] : $target_type); } /** * @param int $lacingtype * * @return string|int */ public static function BlockLacingType($lacingtype) { // http://matroska.org/technical/specs/index.html#block_structure static $BlockLacingType = array(); if (empty($BlockLacingType)) { $BlockLacingType[0x00] = 'no lacing'; $BlockLacingType[0x01] = 'Xiph lacing'; $BlockLacingType[0x02] = 'fixed-size lacing'; $BlockLacingType[0x03] = 'EBML lacing'; } return (isset($BlockLacingType[$lacingtype]) ? $BlockLacingType[$lacingtype] : $lacingtype); } /** * @param string $codecid * * @return string */ public static function CodecIDtoCommonName($codecid) { // http://www.matroska.org/technical/specs/codecid/index.html static $CodecIDlist = array(); if (empty($CodecIDlist)) { $CodecIDlist['A_AAC'] = 'aac'; $CodecIDlist['A_AAC/MPEG2/LC'] = 'aac'; $CodecIDlist['A_AC3'] = 'ac3'; $CodecIDlist['A_EAC3'] = 'eac3'; $CodecIDlist['A_DTS'] = 'dts'; $CodecIDlist['A_FLAC'] = 'flac'; $CodecIDlist['A_MPEG/L1'] = 'mp1'; $CodecIDlist['A_MPEG/L2'] = 'mp2'; $CodecIDlist['A_MPEG/L3'] = 'mp3'; $CodecIDlist['A_PCM/INT/LIT'] = 'pcm'; // PCM Integer Little Endian $CodecIDlist['A_PCM/INT/BIG'] = 'pcm'; // PCM Integer Big Endian $CodecIDlist['A_QUICKTIME/QDMC'] = 'quicktime'; // Quicktime: QDesign Music $CodecIDlist['A_QUICKTIME/QDM2'] = 'quicktime'; // Quicktime: QDesign Music v2 $CodecIDlist['A_VORBIS'] = 'vorbis'; $CodecIDlist['V_MPEG1'] = 'mpeg'; $CodecIDlist['V_THEORA'] = 'theora'; $CodecIDlist['V_REAL/RV40'] = 'real'; $CodecIDlist['V_REAL/RV10'] = 'real'; $CodecIDlist['V_REAL/RV20'] = 'real'; $CodecIDlist['V_REAL/RV30'] = 'real'; $CodecIDlist['V_QUICKTIME'] = 'quicktime'; // Quicktime $CodecIDlist['V_MPEG4/ISO/AP'] = 'mpeg4'; $CodecIDlist['V_MPEG4/ISO/ASP'] = 'mpeg4'; $CodecIDlist['V_MPEG4/ISO/AVC'] = 'h264'; $CodecIDlist['V_MPEG4/ISO/SP'] = 'mpeg4'; $CodecIDlist['V_VP8'] = 'vp8'; $CodecIDlist['V_MS/VFW/FOURCC'] = 'vcm'; // Microsoft (TM) Video Codec Manager (VCM) $CodecIDlist['A_MS/ACM'] = 'acm'; // Microsoft (TM) Audio Codec Manager (ACM) } return (isset($CodecIDlist[$codecid]) ? $CodecIDlist[$codecid] : $codecid); } /** * @param int $value * * @return string */ private static function EBMLidName($value) { static $EBMLidList = array(); if (empty($EBMLidList)) { $EBMLidList[EBML_ID_ASPECTRATIOTYPE] = 'AspectRatioType'; $EBMLidList[EBML_ID_ATTACHEDFILE] = 'AttachedFile'; $EBMLidList[EBML_ID_ATTACHMENTLINK] = 'AttachmentLink'; $EBMLidList[EBML_ID_ATTACHMENTS] = 'Attachments'; $EBMLidList[EBML_ID_AUDIO] = 'Audio'; $EBMLidList[EBML_ID_BITDEPTH] = 'BitDepth'; $EBMLidList[EBML_ID_CHANNELPOSITIONS] = 'ChannelPositions'; $EBMLidList[EBML_ID_CHANNELS] = 'Channels'; $EBMLidList[EBML_ID_CHAPCOUNTRY] = 'ChapCountry'; $EBMLidList[EBML_ID_CHAPLANGUAGE] = 'ChapLanguage'; $EBMLidList[EBML_ID_CHAPPROCESS] = 'ChapProcess'; $EBMLidList[EBML_ID_CHAPPROCESSCODECID] = 'ChapProcessCodecID'; $EBMLidList[EBML_ID_CHAPPROCESSCOMMAND] = 'ChapProcessCommand'; $EBMLidList[EBML_ID_CHAPPROCESSDATA] = 'ChapProcessData'; $EBMLidList[EBML_ID_CHAPPROCESSPRIVATE] = 'ChapProcessPrivate'; $EBMLidList[EBML_ID_CHAPPROCESSTIME] = 'ChapProcessTime'; $EBMLidList[EBML_ID_CHAPSTRING] = 'ChapString'; $EBMLidList[EBML_ID_CHAPTERATOM] = 'ChapterAtom'; $EBMLidList[EBML_ID_CHAPTERDISPLAY] = 'ChapterDisplay'; $EBMLidList[EBML_ID_CHAPTERFLAGENABLED] = 'ChapterFlagEnabled'; $EBMLidList[EBML_ID_CHAPTERFLAGHIDDEN] = 'ChapterFlagHidden'; $EBMLidList[EBML_ID_CHAPTERPHYSICALEQUIV] = 'ChapterPhysicalEquiv'; $EBMLidList[EBML_ID_CHAPTERS] = 'Chapters'; $EBMLidList[EBML_ID_CHAPTERSEGMENTEDITIONUID] = 'ChapterSegmentEditionUID'; $EBMLidList[EBML_ID_CHAPTERSEGMENTUID] = 'ChapterSegmentUID'; $EBMLidList[EBML_ID_CHAPTERTIMEEND] = 'ChapterTimeEnd'; $EBMLidList[EBML_ID_CHAPTERTIMESTART] = 'ChapterTimeStart'; $EBMLidList[EBML_ID_CHAPTERTRACK] = 'ChapterTrack'; $EBMLidList[EBML_ID_CHAPTERTRACKNUMBER] = 'ChapterTrackNumber'; $EBMLidList[EBML_ID_CHAPTERTRANSLATE] = 'ChapterTranslate'; $EBMLidList[EBML_ID_CHAPTERTRANSLATECODEC] = 'ChapterTranslateCodec'; $EBMLidList[EBML_ID_CHAPTERTRANSLATEEDITIONUID] = 'ChapterTranslateEditionUID'; $EBMLidList[EBML_ID_CHAPTERTRANSLATEID] = 'ChapterTranslateID'; $EBMLidList[EBML_ID_CHAPTERUID] = 'ChapterUID'; $EBMLidList[EBML_ID_CLUSTER] = 'Cluster'; $EBMLidList[EBML_ID_CLUSTERBLOCK] = 'ClusterBlock'; $EBMLidList[EBML_ID_CLUSTERBLOCKADDID] = 'ClusterBlockAddID'; $EBMLidList[EBML_ID_CLUSTERBLOCKADDITIONAL] = 'ClusterBlockAdditional'; $EBMLidList[EBML_ID_CLUSTERBLOCKADDITIONID] = 'ClusterBlockAdditionID'; $EBMLidList[EBML_ID_CLUSTERBLOCKADDITIONS] = 'ClusterBlockAdditions'; $EBMLidList[EBML_ID_CLUSTERBLOCKDURATION] = 'ClusterBlockDuration'; $EBMLidList[EBML_ID_CLUSTERBLOCKGROUP] = 'ClusterBlockGroup'; $EBMLidList[EBML_ID_CLUSTERBLOCKMORE] = 'ClusterBlockMore'; $EBMLidList[EBML_ID_CLUSTERBLOCKVIRTUAL] = 'ClusterBlockVirtual'; $EBMLidList[EBML_ID_CLUSTERCODECSTATE] = 'ClusterCodecState'; $EBMLidList[EBML_ID_CLUSTERDELAY] = 'ClusterDelay'; $EBMLidList[EBML_ID_CLUSTERDURATION] = 'ClusterDuration'; $EBMLidList[EBML_ID_CLUSTERENCRYPTEDBLOCK] = 'ClusterEncryptedBlock'; $EBMLidList[EBML_ID_CLUSTERFRAMENUMBER] = 'ClusterFrameNumber'; $EBMLidList[EBML_ID_CLUSTERLACENUMBER] = 'ClusterLaceNumber'; $EBMLidList[EBML_ID_CLUSTERPOSITION] = 'ClusterPosition'; $EBMLidList[EBML_ID_CLUSTERPREVSIZE] = 'ClusterPrevSize'; $EBMLidList[EBML_ID_CLUSTERREFERENCEBLOCK] = 'ClusterReferenceBlock'; $EBMLidList[EBML_ID_CLUSTERREFERENCEPRIORITY] = 'ClusterReferencePriority'; $EBMLidList[EBML_ID_CLUSTERREFERENCEVIRTUAL] = 'ClusterReferenceVirtual'; $EBMLidList[EBML_ID_CLUSTERSILENTTRACKNUMBER] = 'ClusterSilentTrackNumber'; $EBMLidList[EBML_ID_CLUSTERSILENTTRACKS] = 'ClusterSilentTracks'; $EBMLidList[EBML_ID_CLUSTERSIMPLEBLOCK] = 'ClusterSimpleBlock'; $EBMLidList[EBML_ID_CLUSTERTIMECODE] = 'ClusterTimecode'; $EBMLidList[EBML_ID_CLUSTERTIMESLICE] = 'ClusterTimeSlice'; $EBMLidList[EBML_ID_CODECDECODEALL] = 'CodecDecodeAll'; $EBMLidList[EBML_ID_CODECDOWNLOADURL] = 'CodecDownloadURL'; $EBMLidList[EBML_ID_CODECID] = 'CodecID'; $EBMLidList[EBML_ID_CODECINFOURL] = 'CodecInfoURL'; $EBMLidList[EBML_ID_CODECNAME] = 'CodecName'; $EBMLidList[EBML_ID_CODECPRIVATE] = 'CodecPrivate'; $EBMLidList[EBML_ID_CODECSETTINGS] = 'CodecSettings'; $EBMLidList[EBML_ID_COLOURSPACE] = 'ColourSpace'; $EBMLidList[EBML_ID_CONTENTCOMPALGO] = 'ContentCompAlgo'; $EBMLidList[EBML_ID_CONTENTCOMPRESSION] = 'ContentCompression'; $EBMLidList[EBML_ID_CONTENTCOMPSETTINGS] = 'ContentCompSettings'; $EBMLidList[EBML_ID_CONTENTENCALGO] = 'ContentEncAlgo'; $EBMLidList[EBML_ID_CONTENTENCKEYID] = 'ContentEncKeyID'; $EBMLidList[EBML_ID_CONTENTENCODING] = 'ContentEncoding'; $EBMLidList[EBML_ID_CONTENTENCODINGORDER] = 'ContentEncodingOrder'; $EBMLidList[EBML_ID_CONTENTENCODINGS] = 'ContentEncodings'; $EBMLidList[EBML_ID_CONTENTENCODINGSCOPE] = 'ContentEncodingScope'; $EBMLidList[EBML_ID_CONTENTENCODINGTYPE] = 'ContentEncodingType'; $EBMLidList[EBML_ID_CONTENTENCRYPTION] = 'ContentEncryption'; $EBMLidList[EBML_ID_CONTENTSIGALGO] = 'ContentSigAlgo'; $EBMLidList[EBML_ID_CONTENTSIGHASHALGO] = 'ContentSigHashAlgo'; $EBMLidList[EBML_ID_CONTENTSIGKEYID] = 'ContentSigKeyID'; $EBMLidList[EBML_ID_CONTENTSIGNATURE] = 'ContentSignature'; $EBMLidList[EBML_ID_CRC32] = 'CRC32'; $EBMLidList[EBML_ID_CUEBLOCKNUMBER] = 'CueBlockNumber'; $EBMLidList[EBML_ID_CUECLUSTERPOSITION] = 'CueClusterPosition'; $EBMLidList[EBML_ID_CUECODECSTATE] = 'CueCodecState'; $EBMLidList[EBML_ID_CUEPOINT] = 'CuePoint'; $EBMLidList[EBML_ID_CUEREFCLUSTER] = 'CueRefCluster'; $EBMLidList[EBML_ID_CUEREFCODECSTATE] = 'CueRefCodecState'; $EBMLidList[EBML_ID_CUEREFERENCE] = 'CueReference'; $EBMLidList[EBML_ID_CUEREFNUMBER] = 'CueRefNumber'; $EBMLidList[EBML_ID_CUEREFTIME] = 'CueRefTime'; $EBMLidList[EBML_ID_CUES] = 'Cues'; $EBMLidList[EBML_ID_CUETIME] = 'CueTime'; $EBMLidList[EBML_ID_CUETRACK] = 'CueTrack'; $EBMLidList[EBML_ID_CUETRACKPOSITIONS] = 'CueTrackPositions'; $EBMLidList[EBML_ID_DATEUTC] = 'DateUTC'; $EBMLidList[EBML_ID_DEFAULTDURATION] = 'DefaultDuration'; $EBMLidList[EBML_ID_DISPLAYHEIGHT] = 'DisplayHeight'; $EBMLidList[EBML_ID_DISPLAYUNIT] = 'DisplayUnit'; $EBMLidList[EBML_ID_DISPLAYWIDTH] = 'DisplayWidth'; $EBMLidList[EBML_ID_DOCTYPE] = 'DocType'; $EBMLidList[EBML_ID_DOCTYPEREADVERSION] = 'DocTypeReadVersion'; $EBMLidList[EBML_ID_DOCTYPEVERSION] = 'DocTypeVersion'; $EBMLidList[EBML_ID_DURATION] = 'Duration'; $EBMLidList[EBML_ID_EBML] = 'EBML'; $EBMLidList[EBML_ID_EBMLMAXIDLENGTH] = 'EBMLMaxIDLength'; $EBMLidList[EBML_ID_EBMLMAXSIZELENGTH] = 'EBMLMaxSizeLength'; $EBMLidList[EBML_ID_EBMLREADVERSION] = 'EBMLReadVersion'; $EBMLidList[EBML_ID_EBMLVERSION] = 'EBMLVersion'; $EBMLidList[EBML_ID_EDITIONENTRY] = 'EditionEntry'; $EBMLidList[EBML_ID_EDITIONFLAGDEFAULT] = 'EditionFlagDefault'; $EBMLidList[EBML_ID_EDITIONFLAGHIDDEN] = 'EditionFlagHidden'; $EBMLidList[EBML_ID_EDITIONFLAGORDERED] = 'EditionFlagOrdered'; $EBMLidList[EBML_ID_EDITIONUID] = 'EditionUID'; $EBMLidList[EBML_ID_FILEDATA] = 'FileData'; $EBMLidList[EBML_ID_FILEDESCRIPTION] = 'FileDescription'; $EBMLidList[EBML_ID_FILEMIMETYPE] = 'FileMimeType'; $EBMLidList[EBML_ID_FILENAME] = 'FileName'; $EBMLidList[EBML_ID_FILEREFERRAL] = 'FileReferral'; $EBMLidList[EBML_ID_FILEUID] = 'FileUID'; $EBMLidList[EBML_ID_FLAGDEFAULT] = 'FlagDefault'; $EBMLidList[EBML_ID_FLAGENABLED] = 'FlagEnabled'; $EBMLidList[EBML_ID_FLAGFORCED] = 'FlagForced'; $EBMLidList[EBML_ID_FLAGINTERLACED] = 'FlagInterlaced'; $EBMLidList[EBML_ID_FLAGLACING] = 'FlagLacing'; $EBMLidList[EBML_ID_GAMMAVALUE] = 'GammaValue'; $EBMLidList[EBML_ID_INFO] = 'Info'; $EBMLidList[EBML_ID_LANGUAGE] = 'Language'; $EBMLidList[EBML_ID_MAXBLOCKADDITIONID] = 'MaxBlockAdditionID'; $EBMLidList[EBML_ID_MAXCACHE] = 'MaxCache'; $EBMLidList[EBML_ID_MINCACHE] = 'MinCache'; $EBMLidList[EBML_ID_MUXINGAPP] = 'MuxingApp'; $EBMLidList[EBML_ID_NAME] = 'Name'; $EBMLidList[EBML_ID_NEXTFILENAME] = 'NextFilename'; $EBMLidList[EBML_ID_NEXTUID] = 'NextUID'; $EBMLidList[EBML_ID_OUTPUTSAMPLINGFREQUENCY] = 'OutputSamplingFrequency'; $EBMLidList[EBML_ID_PIXELCROPBOTTOM] = 'PixelCropBottom'; $EBMLidList[EBML_ID_PIXELCROPLEFT] = 'PixelCropLeft'; $EBMLidList[EBML_ID_PIXELCROPRIGHT] = 'PixelCropRight'; $EBMLidList[EBML_ID_PIXELCROPTOP] = 'PixelCropTop'; $EBMLidList[EBML_ID_PIXELHEIGHT] = 'PixelHeight'; $EBMLidList[EBML_ID_PIXELWIDTH] = 'PixelWidth'; $EBMLidList[EBML_ID_PREVFILENAME] = 'PrevFilename'; $EBMLidList[EBML_ID_PREVUID] = 'PrevUID'; $EBMLidList[EBML_ID_SAMPLINGFREQUENCY] = 'SamplingFrequency'; $EBMLidList[EBML_ID_SEEK] = 'Seek'; $EBMLidList[EBML_ID_SEEKHEAD] = 'SeekHead'; $EBMLidList[EBML_ID_SEEKID] = 'SeekID'; $EBMLidList[EBML_ID_SEEKPOSITION] = 'SeekPosition'; $EBMLidList[EBML_ID_SEGMENT] = 'Segment'; $EBMLidList[EBML_ID_SEGMENTFAMILY] = 'SegmentFamily'; $EBMLidList[EBML_ID_SEGMENTFILENAME] = 'SegmentFilename'; $EBMLidList[EBML_ID_SEGMENTUID] = 'SegmentUID'; $EBMLidList[EBML_ID_SIMPLETAG] = 'SimpleTag'; $EBMLidList[EBML_ID_CLUSTERSLICES] = 'ClusterSlices'; $EBMLidList[EBML_ID_STEREOMODE] = 'StereoMode'; $EBMLidList[EBML_ID_OLDSTEREOMODE] = 'OldStereoMode'; $EBMLidList[EBML_ID_TAG] = 'Tag'; $EBMLidList[EBML_ID_TAGATTACHMENTUID] = 'TagAttachmentUID'; $EBMLidList[EBML_ID_TAGBINARY] = 'TagBinary'; $EBMLidList[EBML_ID_TAGCHAPTERUID] = 'TagChapterUID'; $EBMLidList[EBML_ID_TAGDEFAULT] = 'TagDefault'; $EBMLidList[EBML_ID_TAGEDITIONUID] = 'TagEditionUID'; $EBMLidList[EBML_ID_TAGLANGUAGE] = 'TagLanguage'; $EBMLidList[EBML_ID_TAGNAME] = 'TagName'; $EBMLidList[EBML_ID_TAGTRACKUID] = 'TagTrackUID'; $EBMLidList[EBML_ID_TAGS] = 'Tags'; $EBMLidList[EBML_ID_TAGSTRING] = 'TagString'; $EBMLidList[EBML_ID_TARGETS] = 'Targets'; $EBMLidList[EBML_ID_TARGETTYPE] = 'TargetType'; $EBMLidList[EBML_ID_TARGETTYPEVALUE] = 'TargetTypeValue'; $EBMLidList[EBML_ID_TIMECODESCALE] = 'TimecodeScale'; $EBMLidList[EBML_ID_TITLE] = 'Title'; $EBMLidList[EBML_ID_TRACKENTRY] = 'TrackEntry'; $EBMLidList[EBML_ID_TRACKNUMBER] = 'TrackNumber'; $EBMLidList[EBML_ID_TRACKOFFSET] = 'TrackOffset'; $EBMLidList[EBML_ID_TRACKOVERLAY] = 'TrackOverlay'; $EBMLidList[EBML_ID_TRACKS] = 'Tracks'; $EBMLidList[EBML_ID_TRACKTIMECODESCALE] = 'TrackTimecodeScale'; $EBMLidList[EBML_ID_TRACKTRANSLATE] = 'TrackTranslate'; $EBMLidList[EBML_ID_TRACKTRANSLATECODEC] = 'TrackTranslateCodec'; $EBMLidList[EBML_ID_TRACKTRANSLATEEDITIONUID] = 'TrackTranslateEditionUID'; $EBMLidList[EBML_ID_TRACKTRANSLATETRACKID] = 'TrackTranslateTrackID'; $EBMLidList[EBML_ID_TRACKTYPE] = 'TrackType'; $EBMLidList[EBML_ID_TRACKUID] = 'TrackUID'; $EBMLidList[EBML_ID_VIDEO] = 'Video'; $EBMLidList[EBML_ID_VOID] = 'Void'; $EBMLidList[EBML_ID_WRITINGAPP] = 'WritingApp'; } return (isset($EBMLidList[$value]) ? $EBMLidList[$value] : dechex($value)); } /** * @param int $value * * @return string */ public static function displayUnit($value) { // http://www.matroska.org/technical/specs/index.html#DisplayUnit static $units = array( 0 => 'pixels', 1 => 'centimeters', 2 => 'inches', 3 => 'Display Aspect Ratio'); return (isset($units[$value]) ? $units[$value] : 'unknown'); } /** * @param array $streams * * @return array */ private static function getDefaultStreamInfo($streams) { $stream = array(); foreach (array_reverse($streams) as $stream) { if ($stream['default']) { break; } } $unset = array('default', 'name'); foreach ($unset as $u) { if (isset($stream[$u])) { unset($stream[$u]); } } $info = $stream; $info['streams'] = $streams; return $info; } } PK!**module.audio.dts.phpnu&1i // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio.dts.php // // module for analyzing DTS Audio files // // dependencies: NONE // // // ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } /** * @tutorial http://wiki.multimedia.cx/index.php?title=DTS */ class getid3_dts extends getid3_handler { /** * Default DTS syncword used in native .cpt or .dts formats. */ const syncword = "\x7F\xFE\x80\x01"; /** * @var int */ private $readBinDataOffset = 0; /** * Possible syncwords indicating bitstream encoding. */ public static $syncwords = array( 0 => "\x7F\xFE\x80\x01", // raw big-endian 1 => "\xFE\x7F\x01\x80", // raw little-endian 2 => "\x1F\xFF\xE8\x00", // 14-bit big-endian 3 => "\xFF\x1F\x00\xE8"); // 14-bit little-endian /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; $info['fileformat'] = 'dts'; $this->fseek($info['avdataoffset']); $DTSheader = $this->fread(20); // we only need 2 words magic + 6 words frame header, but these words may be normal 16-bit words OR 14-bit words with 2 highest bits set to zero, so 8 words can be either 8*16/8 = 16 bytes OR 8*16*(16/14)/8 = 18.3 bytes // check syncword $sync = substr($DTSheader, 0, 4); if (($encoding = array_search($sync, self::$syncwords)) !== false) { $info['dts']['raw']['magic'] = $sync; $this->readBinDataOffset = 32; } elseif ($this->isDependencyFor('matroska')) { // Matroska contains DTS without syncword encoded as raw big-endian format $encoding = 0; $this->readBinDataOffset = 0; } else { unset($info['fileformat']); return $this->error('Expecting "'.implode('| ', array_map('getid3_lib::PrintHexBytes', self::$syncwords)).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($sync).'"'); } // decode header $fhBS = ''; for ($word_offset = 0; $word_offset <= strlen($DTSheader); $word_offset += 2) { switch ($encoding) { case 0: // raw big-endian $fhBS .= getid3_lib::BigEndian2Bin( substr($DTSheader, $word_offset, 2) ); break; case 1: // raw little-endian $fhBS .= getid3_lib::BigEndian2Bin(strrev(substr($DTSheader, $word_offset, 2))); break; case 2: // 14-bit big-endian $fhBS .= substr(getid3_lib::BigEndian2Bin( substr($DTSheader, $word_offset, 2) ), 2, 14); break; case 3: // 14-bit little-endian $fhBS .= substr(getid3_lib::BigEndian2Bin(strrev(substr($DTSheader, $word_offset, 2))), 2, 14); break; } } $info['dts']['raw']['frame_type'] = $this->readBinData($fhBS, 1); $info['dts']['raw']['deficit_samples'] = $this->readBinData($fhBS, 5); $info['dts']['flags']['crc_present'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['raw']['pcm_sample_blocks'] = $this->readBinData($fhBS, 7); $info['dts']['raw']['frame_byte_size'] = $this->readBinData($fhBS, 14); $info['dts']['raw']['channel_arrangement'] = $this->readBinData($fhBS, 6); $info['dts']['raw']['sample_frequency'] = $this->readBinData($fhBS, 4); $info['dts']['raw']['bitrate'] = $this->readBinData($fhBS, 5); $info['dts']['flags']['embedded_downmix'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['dynamicrange'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['timestamp'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['auxdata'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['hdcd'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['raw']['extension_audio'] = $this->readBinData($fhBS, 3); $info['dts']['flags']['extended_coding'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['audio_sync_insertion'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['raw']['lfe_effects'] = $this->readBinData($fhBS, 2); $info['dts']['flags']['predictor_history'] = (bool) $this->readBinData($fhBS, 1); if ($info['dts']['flags']['crc_present']) { $info['dts']['raw']['crc16'] = $this->readBinData($fhBS, 16); } $info['dts']['flags']['mri_perfect_reconst'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['raw']['encoder_soft_version'] = $this->readBinData($fhBS, 4); $info['dts']['raw']['copy_history'] = $this->readBinData($fhBS, 2); $info['dts']['raw']['bits_per_sample'] = $this->readBinData($fhBS, 2); $info['dts']['flags']['surround_es'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['front_sum_diff'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['flags']['surround_sum_diff'] = (bool) $this->readBinData($fhBS, 1); $info['dts']['raw']['dialog_normalization'] = $this->readBinData($fhBS, 4); $info['dts']['bitrate'] = self::bitrateLookup($info['dts']['raw']['bitrate']); $info['dts']['bits_per_sample'] = self::bitPerSampleLookup($info['dts']['raw']['bits_per_sample']); $info['dts']['sample_rate'] = self::sampleRateLookup($info['dts']['raw']['sample_frequency']); $info['dts']['dialog_normalization'] = self::dialogNormalization($info['dts']['raw']['dialog_normalization'], $info['dts']['raw']['encoder_soft_version']); $info['dts']['flags']['lossless'] = (($info['dts']['raw']['bitrate'] == 31) ? true : false); $info['dts']['bitrate_mode'] = (($info['dts']['raw']['bitrate'] == 30) ? 'vbr' : 'cbr'); $info['dts']['channels'] = self::numChannelsLookup($info['dts']['raw']['channel_arrangement']); $info['dts']['channel_arrangement'] = self::channelArrangementLookup($info['dts']['raw']['channel_arrangement']); $info['audio']['dataformat'] = 'dts'; $info['audio']['lossless'] = $info['dts']['flags']['lossless']; $info['audio']['bitrate_mode'] = $info['dts']['bitrate_mode']; $info['audio']['bits_per_sample'] = $info['dts']['bits_per_sample']; $info['audio']['sample_rate'] = $info['dts']['sample_rate']; $info['audio']['channels'] = $info['dts']['channels']; $info['audio']['bitrate'] = $info['dts']['bitrate']; if (isset($info['avdataend']) && !empty($info['dts']['bitrate']) && is_numeric($info['dts']['bitrate'])) { $info['playtime_seconds'] = ($info['avdataend'] - $info['avdataoffset']) / ($info['dts']['bitrate'] / 8); if (($encoding == 2) || ($encoding == 3)) { // 14-bit data packed into 16-bit words, so the playtime is wrong because only (14/16) of the bytes in the data portion of the file are used at the specified bitrate $info['playtime_seconds'] *= (14 / 16); } } return true; } /** * @param string $bin * @param int $length * * @return int */ private function readBinData($bin, $length) { $data = substr($bin, $this->readBinDataOffset, $length); $this->readBinDataOffset += $length; return bindec($data); } /** * @param int $index * * @return int|string|false */ public static function bitrateLookup($index) { static $lookup = array( 0 => 32000, 1 => 56000, 2 => 64000, 3 => 96000, 4 => 112000, 5 => 128000, 6 => 192000, 7 => 224000, 8 => 256000, 9 => 320000, 10 => 384000, 11 => 448000, 12 => 512000, 13 => 576000, 14 => 640000, 15 => 768000, 16 => 960000, 17 => 1024000, 18 => 1152000, 19 => 1280000, 20 => 1344000, 21 => 1408000, 22 => 1411200, 23 => 1472000, 24 => 1536000, 25 => 1920000, 26 => 2048000, 27 => 3072000, 28 => 3840000, 29 => 'open', 30 => 'variable', 31 => 'lossless', ); return (isset($lookup[$index]) ? $lookup[$index] : false); } /** * @param int $index * * @return int|string|false */ public static function sampleRateLookup($index) { static $lookup = array( 0 => 'invalid', 1 => 8000, 2 => 16000, 3 => 32000, 4 => 'invalid', 5 => 'invalid', 6 => 11025, 7 => 22050, 8 => 44100, 9 => 'invalid', 10 => 'invalid', 11 => 12000, 12 => 24000, 13 => 48000, 14 => 'invalid', 15 => 'invalid', ); return (isset($lookup[$index]) ? $lookup[$index] : false); } /** * @param int $index * * @return int|false */ public static function bitPerSampleLookup($index) { static $lookup = array( 0 => 16, 1 => 20, 2 => 24, 3 => 24, ); return (isset($lookup[$index]) ? $lookup[$index] : false); } /** * @param int $index * * @return int|false */ public static function numChannelsLookup($index) { switch ($index) { case 0: return 1; case 1: case 2: case 3: case 4: return 2; case 5: case 6: return 3; case 7: case 8: return 4; case 9: return 5; case 10: case 11: case 12: return 6; case 13: return 7; case 14: case 15: return 8; } return false; } /** * @param int $index * * @return string */ public static function channelArrangementLookup($index) { static $lookup = array( 0 => 'A', 1 => 'A + B (dual mono)', 2 => 'L + R (stereo)', 3 => '(L+R) + (L-R) (sum-difference)', 4 => 'LT + RT (left and right total)', 5 => 'C + L + R', 6 => 'L + R + S', 7 => 'C + L + R + S', 8 => 'L + R + SL + SR', 9 => 'C + L + R + SL + SR', 10 => 'CL + CR + L + R + SL + SR', 11 => 'C + L + R+ LR + RR + OV', 12 => 'CF + CR + LF + RF + LR + RR', 13 => 'CL + C + CR + L + R + SL + SR', 14 => 'CL + CR + L + R + SL1 + SL2 + SR1 + SR2', 15 => 'CL + C+ CR + L + R + SL + S + SR', ); return (isset($lookup[$index]) ? $lookup[$index] : 'user-defined'); } /** * @param int $index * @param int $version * * @return int|false */ public static function dialogNormalization($index, $version) { switch ($version) { case 7: return 0 - $index; case 6: return 0 - 16 - $index; } return false; } } PK!Giimodule.audio-video.flv.phpnu[ // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio-video.flv.php // // module for analyzing Shockwave Flash Video files // // dependencies: NONE // // // ///////////////////////////////////////////////////////////////// // // // FLV module by Seth Kaufman // // // // * version 0.1 (26 June 2005) // // // // * version 0.1.1 (15 July 2005) // // minor modifications by James Heinrich // // // // * version 0.2 (22 February 2006) // // Support for On2 VP6 codec and meta information // // by Steve Webster // // // // * version 0.3 (15 June 2006) // // Modified to not read entire file into memory // // by James Heinrich // // // // * version 0.4 (07 December 2007) // // Bugfixes for incorrectly parsed FLV dimensions // // and incorrect parsing of onMetaTag // // by Evgeny Moysevich // // // // * version 0.5 (21 May 2009) // // Fixed parsing of audio tags and added additional codec // // details. The duration is now read from onMetaTag (if // // exists), rather than parsing whole file // // by Nigel Barnes // // // // * version 0.6 (24 May 2009) // // Better parsing of files with h264 video // // by Evgeny Moysevich // // // // * version 0.6.1 (30 May 2011) // // prevent infinite loops in expGolombUe() // // // // * version 0.7.0 (16 Jul 2013) // // handle GETID3_FLV_VIDEO_VP6FLV_ALPHA // // improved AVCSequenceParameterSetReader::readData() // // by Xander Schouwerwou // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } define('GETID3_FLV_TAG_AUDIO', 8); define('GETID3_FLV_TAG_VIDEO', 9); define('GETID3_FLV_TAG_META', 18); define('GETID3_FLV_VIDEO_H263', 2); define('GETID3_FLV_VIDEO_SCREEN', 3); define('GETID3_FLV_VIDEO_VP6FLV', 4); define('GETID3_FLV_VIDEO_VP6FLV_ALPHA', 5); define('GETID3_FLV_VIDEO_SCREENV2', 6); define('GETID3_FLV_VIDEO_H264', 7); define('H264_AVC_SEQUENCE_HEADER', 0); define('H264_PROFILE_BASELINE', 66); define('H264_PROFILE_MAIN', 77); define('H264_PROFILE_EXTENDED', 88); define('H264_PROFILE_HIGH', 100); define('H264_PROFILE_HIGH10', 110); define('H264_PROFILE_HIGH422', 122); define('H264_PROFILE_HIGH444', 144); define('H264_PROFILE_HIGH444_PREDICTIVE', 244); class getid3_flv extends getid3_handler { const magic = 'FLV'; /** * Break out of the loop if too many frames have been scanned; only scan this * many if meta frame does not contain useful duration. * * @var int */ public $max_frames = 100000; /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; $this->fseek($info['avdataoffset']); $FLVdataLength = $info['avdataend'] - $info['avdataoffset']; $FLVheader = $this->fread(5); $info['fileformat'] = 'flv'; $info['flv']['header']['signature'] = substr($FLVheader, 0, 3); $info['flv']['header']['version'] = getid3_lib::BigEndian2Int(substr($FLVheader, 3, 1)); $TypeFlags = getid3_lib::BigEndian2Int(substr($FLVheader, 4, 1)); if ($info['flv']['header']['signature'] != self::magic) { $this->error('Expecting "'.getid3_lib::PrintHexBytes(self::magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes($info['flv']['header']['signature']).'"'); unset($info['flv'], $info['fileformat']); return false; } $info['flv']['header']['hasAudio'] = (bool) ($TypeFlags & 0x04); $info['flv']['header']['hasVideo'] = (bool) ($TypeFlags & 0x01); $FrameSizeDataLength = getid3_lib::BigEndian2Int($this->fread(4)); $FLVheaderFrameLength = 9; if ($FrameSizeDataLength > $FLVheaderFrameLength) { $this->fseek($FrameSizeDataLength - $FLVheaderFrameLength, SEEK_CUR); } $Duration = 0; $found_video = false; $found_audio = false; $found_meta = false; $found_valid_meta_playtime = false; $tagParseCount = 0; $info['flv']['framecount'] = array('total'=>0, 'audio'=>0, 'video'=>0); $flv_framecount = &$info['flv']['framecount']; while ((($this->ftell() + 16) < $info['avdataend']) && (($tagParseCount++ <= $this->max_frames) || !$found_valid_meta_playtime)) { $ThisTagHeader = $this->fread(16); $PreviousTagLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 0, 4)); $TagType = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 4, 1)); $DataLength = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 5, 3)); $Timestamp = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 8, 3)); $LastHeaderByte = getid3_lib::BigEndian2Int(substr($ThisTagHeader, 15, 1)); $NextOffset = $this->ftell() - 1 + $DataLength; if ($Timestamp > $Duration) { $Duration = $Timestamp; } $flv_framecount['total']++; switch ($TagType) { case GETID3_FLV_TAG_AUDIO: $flv_framecount['audio']++; if (!$found_audio) { $found_audio = true; $info['flv']['audio']['audioFormat'] = ($LastHeaderByte >> 4) & 0x0F; $info['flv']['audio']['audioRate'] = ($LastHeaderByte >> 2) & 0x03; $info['flv']['audio']['audioSampleSize'] = ($LastHeaderByte >> 1) & 0x01; $info['flv']['audio']['audioType'] = $LastHeaderByte & 0x01; } break; case GETID3_FLV_TAG_VIDEO: $flv_framecount['video']++; if (!$found_video) { $found_video = true; $info['flv']['video']['videoCodec'] = $LastHeaderByte & 0x07; $FLVvideoHeader = $this->fread(11); $PictureSizeEnc = array(); if ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H264) { // this code block contributed by: moysevichØgmail*com $AVCPacketType = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 0, 1)); if ($AVCPacketType == H264_AVC_SEQUENCE_HEADER) { // read AVCDecoderConfigurationRecord $configurationVersion = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 1)); $AVCProfileIndication = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 1)); $profile_compatibility = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 1)); $lengthSizeMinusOne = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 1)); $numOfSequenceParameterSets = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 8, 1)); if (($numOfSequenceParameterSets & 0x1F) != 0) { // there is at least one SequenceParameterSet // read size of the first SequenceParameterSet //$spsSize = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 9, 2)); $spsSize = getid3_lib::LittleEndian2Int(substr($FLVvideoHeader, 9, 2)); // read the first SequenceParameterSet $sps = $this->fread($spsSize); if (strlen($sps) == $spsSize) { // make sure that whole SequenceParameterSet was red $spsReader = new AVCSequenceParameterSetReader($sps); $spsReader->readData(); $info['video']['resolution_x'] = $spsReader->getWidth(); $info['video']['resolution_y'] = $spsReader->getHeight(); } } } // end: moysevichØgmail*com } elseif ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_H263) { $PictureSizeType = (getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 3, 2))) >> 7; $PictureSizeType = $PictureSizeType & 0x0007; $info['flv']['header']['videoSizeType'] = $PictureSizeType; switch ($PictureSizeType) { case 0: //$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)); //$PictureSizeEnc <<= 1; //$info['video']['resolution_x'] = ($PictureSizeEnc & 0xFF00) >> 8; //$PictureSizeEnc = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2)); //$PictureSizeEnc <<= 1; //$info['video']['resolution_y'] = ($PictureSizeEnc & 0xFF00) >> 8; $PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 2)) >> 7; $PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 5, 2)) >> 7; $info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFF; $info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFF; break; case 1: $PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 4, 3)) >> 7; $PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 3)) >> 7; $info['video']['resolution_x'] = $PictureSizeEnc['x'] & 0xFFFF; $info['video']['resolution_y'] = $PictureSizeEnc['y'] & 0xFFFF; break; case 2: $info['video']['resolution_x'] = 352; $info['video']['resolution_y'] = 288; break; case 3: $info['video']['resolution_x'] = 176; $info['video']['resolution_y'] = 144; break; case 4: $info['video']['resolution_x'] = 128; $info['video']['resolution_y'] = 96; break; case 5: $info['video']['resolution_x'] = 320; $info['video']['resolution_y'] = 240; break; case 6: $info['video']['resolution_x'] = 160; $info['video']['resolution_y'] = 120; break; default: $info['video']['resolution_x'] = 0; $info['video']['resolution_y'] = 0; break; } } elseif ($info['flv']['video']['videoCodec'] == GETID3_FLV_VIDEO_VP6FLV_ALPHA) { /* contributed by schouwerwouØgmail*com */ if (!isset($info['video']['resolution_x'])) { // only when meta data isn't set $PictureSizeEnc['x'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 6, 2)); $PictureSizeEnc['y'] = getid3_lib::BigEndian2Int(substr($FLVvideoHeader, 7, 2)); $info['video']['resolution_x'] = ($PictureSizeEnc['x'] & 0xFF) << 3; $info['video']['resolution_y'] = ($PictureSizeEnc['y'] & 0xFF) << 3; } /* end schouwerwouØgmail*com */ } if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) { $info['video']['pixel_aspect_ratio'] = $info['video']['resolution_x'] / $info['video']['resolution_y']; } } break; // Meta tag case GETID3_FLV_TAG_META: if (!$found_meta) { $found_meta = true; $this->fseek(-1, SEEK_CUR); $datachunk = $this->fread($DataLength); $AMFstream = new AMFStream($datachunk); $reader = new AMFReader($AMFstream); $eventName = $reader->readData(); $info['flv']['meta'][$eventName] = $reader->readData(); unset($reader); $copykeys = array('framerate'=>'frame_rate', 'width'=>'resolution_x', 'height'=>'resolution_y', 'audiodatarate'=>'bitrate', 'videodatarate'=>'bitrate'); foreach ($copykeys as $sourcekey => $destkey) { if (isset($info['flv']['meta']['onMetaData'][$sourcekey])) { switch ($sourcekey) { case 'width': case 'height': $info['video'][$destkey] = intval(round($info['flv']['meta']['onMetaData'][$sourcekey])); break; case 'audiodatarate': $info['audio'][$destkey] = getid3_lib::CastAsInt(round($info['flv']['meta']['onMetaData'][$sourcekey] * 1000)); break; case 'videodatarate': case 'frame_rate': default: $info['video'][$destkey] = $info['flv']['meta']['onMetaData'][$sourcekey]; break; } } } if (!empty($info['flv']['meta']['onMetaData']['duration'])) { $found_valid_meta_playtime = true; } } break; default: // noop break; } $this->fseek($NextOffset); } $info['playtime_seconds'] = $Duration / 1000; if ($info['playtime_seconds'] > 0) { $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds']; } if ($info['flv']['header']['hasAudio']) { $info['audio']['codec'] = self::audioFormatLookup($info['flv']['audio']['audioFormat']); $info['audio']['sample_rate'] = self::audioRateLookup($info['flv']['audio']['audioRate']); $info['audio']['bits_per_sample'] = self::audioBitDepthLookup($info['flv']['audio']['audioSampleSize']); $info['audio']['channels'] = $info['flv']['audio']['audioType'] + 1; // 0=mono,1=stereo $info['audio']['lossless'] = ($info['flv']['audio']['audioFormat'] ? false : true); // 0=uncompressed $info['audio']['dataformat'] = 'flv'; } if (!empty($info['flv']['header']['hasVideo'])) { $info['video']['codec'] = self::videoCodecLookup($info['flv']['video']['videoCodec']); $info['video']['dataformat'] = 'flv'; $info['video']['lossless'] = false; } // Set information from meta if (!empty($info['flv']['meta']['onMetaData']['duration'])) { $info['playtime_seconds'] = $info['flv']['meta']['onMetaData']['duration']; $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds']; } if (isset($info['flv']['meta']['onMetaData']['audiocodecid'])) { $info['audio']['codec'] = self::audioFormatLookup($info['flv']['meta']['onMetaData']['audiocodecid']); } if (isset($info['flv']['meta']['onMetaData']['videocodecid'])) { $info['video']['codec'] = self::videoCodecLookup($info['flv']['meta']['onMetaData']['videocodecid']); } return true; } /** * @param int $id * * @return string|false */ public static function audioFormatLookup($id) { static $lookup = array( 0 => 'Linear PCM, platform endian', 1 => 'ADPCM', 2 => 'mp3', 3 => 'Linear PCM, little endian', 4 => 'Nellymoser 16kHz mono', 5 => 'Nellymoser 8kHz mono', 6 => 'Nellymoser', 7 => 'G.711A-law logarithmic PCM', 8 => 'G.711 mu-law logarithmic PCM', 9 => 'reserved', 10 => 'AAC', 11 => 'Speex', 12 => false, // unknown? 13 => false, // unknown? 14 => 'mp3 8kHz', 15 => 'Device-specific sound', ); return (isset($lookup[$id]) ? $lookup[$id] : false); } /** * @param int $id * * @return int|false */ public static function audioRateLookup($id) { static $lookup = array( 0 => 5500, 1 => 11025, 2 => 22050, 3 => 44100, ); return (isset($lookup[$id]) ? $lookup[$id] : false); } /** * @param int $id * * @return int|false */ public static function audioBitDepthLookup($id) { static $lookup = array( 0 => 8, 1 => 16, ); return (isset($lookup[$id]) ? $lookup[$id] : false); } /** * @param int $id * * @return string|false */ public static function videoCodecLookup($id) { static $lookup = array( GETID3_FLV_VIDEO_H263 => 'Sorenson H.263', GETID3_FLV_VIDEO_SCREEN => 'Screen video', GETID3_FLV_VIDEO_VP6FLV => 'On2 VP6', GETID3_FLV_VIDEO_VP6FLV_ALPHA => 'On2 VP6 with alpha channel', GETID3_FLV_VIDEO_SCREENV2 => 'Screen video v2', GETID3_FLV_VIDEO_H264 => 'Sorenson H.264', ); return (isset($lookup[$id]) ? $lookup[$id] : false); } } class AMFStream { /** * @var string */ public $bytes; /** * @var int */ public $pos; /** * @param string $bytes */ public function __construct(&$bytes) { $this->bytes =& $bytes; $this->pos = 0; } /** * @return int */ public function readByte() { // 8-bit return ord(substr($this->bytes, $this->pos++, 1)); } /** * @return int */ public function readInt() { // 16-bit return ($this->readByte() << 8) + $this->readByte(); } /** * @return int */ public function readLong() { // 32-bit return ($this->readByte() << 24) + ($this->readByte() << 16) + ($this->readByte() << 8) + $this->readByte(); } /** * @return float|false */ public function readDouble() { return getid3_lib::BigEndian2Float($this->read(8)); } /** * @return string */ public function readUTF() { $length = $this->readInt(); return $this->read($length); } /** * @return string */ public function readLongUTF() { $length = $this->readLong(); return $this->read($length); } /** * @param int $length * * @return string */ public function read($length) { $val = substr($this->bytes, $this->pos, $length); $this->pos += $length; return $val; } /** * @return int */ public function peekByte() { $pos = $this->pos; $val = $this->readByte(); $this->pos = $pos; return $val; } /** * @return int */ public function peekInt() { $pos = $this->pos; $val = $this->readInt(); $this->pos = $pos; return $val; } /** * @return int */ public function peekLong() { $pos = $this->pos; $val = $this->readLong(); $this->pos = $pos; return $val; } /** * @return float|false */ public function peekDouble() { $pos = $this->pos; $val = $this->readDouble(); $this->pos = $pos; return $val; } /** * @return string */ public function peekUTF() { $pos = $this->pos; $val = $this->readUTF(); $this->pos = $pos; return $val; } /** * @return string */ public function peekLongUTF() { $pos = $this->pos; $val = $this->readLongUTF(); $this->pos = $pos; return $val; } } class AMFReader { /** * @var AMFStream */ public $stream; /** * @param AMFStream $stream */ public function __construct(AMFStream $stream) { $this->stream = $stream; } /** * @return mixed */ public function readData() { $value = null; $type = $this->stream->readByte(); switch ($type) { // Double case 0: $value = $this->readDouble(); break; // Boolean case 1: $value = $this->readBoolean(); break; // String case 2: $value = $this->readString(); break; // Object case 3: $value = $this->readObject(); break; // null case 6: return null; // Mixed array case 8: $value = $this->readMixedArray(); break; // Array case 10: $value = $this->readArray(); break; // Date case 11: $value = $this->readDate(); break; // Long string case 13: $value = $this->readLongString(); break; // XML (handled as string) case 15: $value = $this->readXML(); break; // Typed object (handled as object) case 16: $value = $this->readTypedObject(); break; // Long string default: $value = '(unknown or unsupported data type)'; break; } return $value; } /** * @return float|false */ public function readDouble() { return $this->stream->readDouble(); } /** * @return bool */ public function readBoolean() { return $this->stream->readByte() == 1; } /** * @return string */ public function readString() { return $this->stream->readUTF(); } /** * @return array */ public function readObject() { // Get highest numerical index - ignored // $highestIndex = $this->stream->readLong(); $data = array(); $key = null; while ($key = $this->stream->readUTF()) { $data[$key] = $this->readData(); } // Mixed array record ends with empty string (0x00 0x00) and 0x09 if (($key == '') && ($this->stream->peekByte() == 0x09)) { // Consume byte $this->stream->readByte(); } return $data; } /** * @return array */ public function readMixedArray() { // Get highest numerical index - ignored $highestIndex = $this->stream->readLong(); $data = array(); $key = null; while ($key = $this->stream->readUTF()) { if (is_numeric($key)) { $key = (int) $key; } $data[$key] = $this->readData(); } // Mixed array record ends with empty string (0x00 0x00) and 0x09 if (($key == '') && ($this->stream->peekByte() == 0x09)) { // Consume byte $this->stream->readByte(); } return $data; } /** * @return array */ public function readArray() { $length = $this->stream->readLong(); $data = array(); for ($i = 0; $i < $length; $i++) { $data[] = $this->readData(); } return $data; } /** * @return float|false */ public function readDate() { $timestamp = $this->stream->readDouble(); $timezone = $this->stream->readInt(); return $timestamp; } /** * @return string */ public function readLongString() { return $this->stream->readLongUTF(); } /** * @return string */ public function readXML() { return $this->stream->readLongUTF(); } /** * @return array */ public function readTypedObject() { $className = $this->stream->readUTF(); return $this->readObject(); } } class AVCSequenceParameterSetReader { /** * @var string */ public $sps; public $start = 0; public $currentBytes = 0; public $currentBits = 0; /** * @var int */ public $width; /** * @var int */ public $height; /** * @param string $sps */ public function __construct($sps) { $this->sps = $sps; } public function readData() { $this->skipBits(8); $this->skipBits(8); $profile = $this->getBits(8); // read profile if ($profile > 0) { $this->skipBits(8); $level_idc = $this->getBits(8); // level_idc $this->expGolombUe(); // seq_parameter_set_id // sps $this->expGolombUe(); // log2_max_frame_num_minus4 $picOrderType = $this->expGolombUe(); // pic_order_cnt_type if ($picOrderType == 0) { $this->expGolombUe(); // log2_max_pic_order_cnt_lsb_minus4 } elseif ($picOrderType == 1) { $this->skipBits(1); // delta_pic_order_always_zero_flag $this->expGolombSe(); // offset_for_non_ref_pic $this->expGolombSe(); // offset_for_top_to_bottom_field $num_ref_frames_in_pic_order_cnt_cycle = $this->expGolombUe(); // num_ref_frames_in_pic_order_cnt_cycle for ($i = 0; $i < $num_ref_frames_in_pic_order_cnt_cycle; $i++) { $this->expGolombSe(); // offset_for_ref_frame[ i ] } } $this->expGolombUe(); // num_ref_frames $this->skipBits(1); // gaps_in_frame_num_value_allowed_flag $pic_width_in_mbs_minus1 = $this->expGolombUe(); // pic_width_in_mbs_minus1 $pic_height_in_map_units_minus1 = $this->expGolombUe(); // pic_height_in_map_units_minus1 $frame_mbs_only_flag = $this->getBits(1); // frame_mbs_only_flag if ($frame_mbs_only_flag == 0) { $this->skipBits(1); // mb_adaptive_frame_field_flag } $this->skipBits(1); // direct_8x8_inference_flag $frame_cropping_flag = $this->getBits(1); // frame_cropping_flag $frame_crop_left_offset = 0; $frame_crop_right_offset = 0; $frame_crop_top_offset = 0; $frame_crop_bottom_offset = 0; if ($frame_cropping_flag) { $frame_crop_left_offset = $this->expGolombUe(); // frame_crop_left_offset $frame_crop_right_offset = $this->expGolombUe(); // frame_crop_right_offset $frame_crop_top_offset = $this->expGolombUe(); // frame_crop_top_offset $frame_crop_bottom_offset = $this->expGolombUe(); // frame_crop_bottom_offset } $this->skipBits(1); // vui_parameters_present_flag // etc $this->width = (($pic_width_in_mbs_minus1 + 1) * 16) - ($frame_crop_left_offset * 2) - ($frame_crop_right_offset * 2); $this->height = ((2 - $frame_mbs_only_flag) * ($pic_height_in_map_units_minus1 + 1) * 16) - ($frame_crop_top_offset * 2) - ($frame_crop_bottom_offset * 2); } } /** * @param int $bits */ public function skipBits($bits) { $newBits = $this->currentBits + $bits; $this->currentBytes += (int)floor($newBits / 8); $this->currentBits = $newBits % 8; } /** * @return int */ public function getBit() { $result = (getid3_lib::BigEndian2Int(substr($this->sps, $this->currentBytes, 1)) >> (7 - $this->currentBits)) & 0x01; $this->skipBits(1); return $result; } /** * @param int $bits * * @return int */ public function getBits($bits) { $result = 0; for ($i = 0; $i < $bits; $i++) { $result = ($result << 1) + $this->getBit(); } return $result; } /** * @return int */ public function expGolombUe() { $significantBits = 0; $bit = $this->getBit(); while ($bit == 0) { $significantBits++; $bit = $this->getBit(); if ($significantBits > 31) { // something is broken, this is an emergency escape to prevent infinite loops return 0; } } return (1 << $significantBits) + $this->getBits($significantBits) - 1; } /** * @return int */ public function expGolombSe() { $result = $this->expGolombUe(); if (($result & 0x01) == 0) { return -($result >> 1); } else { return ($result + 1) >> 1; } } /** * @return int */ public function getWidth() { return $this->width; } /** * @return int */ public function getHeight() { return $this->height; } } PK!Fmodule.audio.ogg.phpnuȯ // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio.ogg.php // // module for analyzing Ogg Vorbis, OggFLAC and Speex files // // dependencies: module.audio.flac.php // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.flac.php', __FILE__, true); class getid3_ogg extends getid3_handler { /** * @link http://xiph.org/vorbis/doc/Vorbis_I_spec.html * * @return bool */ public function Analyze() { $info = &$this->getid3->info; $info['fileformat'] = 'ogg'; // Warn about illegal tags - only vorbiscomments are allowed if (isset($info['id3v2'])) { $this->warning('Illegal ID3v2 tag present.'); } if (isset($info['id3v1'])) { $this->warning('Illegal ID3v1 tag present.'); } if (isset($info['ape'])) { $this->warning('Illegal APE tag present.'); } // Page 1 - Stream Header $this->fseek($info['avdataoffset']); $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; if ($this->ftell() >= $this->getid3->fread_buffer_size()) { $this->error('Could not find start of Ogg page in the first '.$this->getid3->fread_buffer_size().' bytes (this might not be an Ogg-Vorbis file?)'); unset($info['fileformat']); unset($info['ogg']); return false; } $filedata = $this->fread($oggpageinfo['page_length']); $filedataoffset = 0; if (substr($filedata, 0, 4) == 'fLaC') { $info['audio']['dataformat'] = 'flac'; $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['lossless'] = true; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); } elseif (substr($filedata, 0, 8) == 'OpusHead') { if ($this->ParseOpusPageHeader($filedata, $filedataoffset, $oggpageinfo) === false) { return false; } } elseif (substr($filedata, 0, 8) == 'Speex ') { // http://www.speex.org/manual/node10.html $info['audio']['dataformat'] = 'speex'; $info['mime_type'] = 'audio/speex'; $info['audio']['bitrate_mode'] = 'abr'; $info['audio']['lossless'] = false; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'Speex ' $filedataoffset += 8; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20); $filedataoffset += 20; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['speex']['speex_version'] = trim($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']); $info['speex']['sample_rate'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate']; $info['speex']['channels'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels']; $info['speex']['vbr'] = (bool) $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr']; $info['speex']['band_type'] = $this->SpeexBandModeLookup($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']); $info['audio']['sample_rate'] = $info['speex']['sample_rate']; $info['audio']['channels'] = $info['speex']['channels']; if ($info['speex']['vbr']) { $info['audio']['bitrate_mode'] = 'vbr'; } } elseif (substr($filedata, 0, 7) == "\x80".'theora') { // http://www.theora.org/doc/Theora.pdf (section 6.2) $info['ogg']['pageheader']['theora']['theora_magic'] = substr($filedata, $filedataoffset, 7); // hard-coded to "\x80.'theora' $filedataoffset += 7; $info['ogg']['pageheader']['theora']['version_major'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['version_minor'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['version_revision'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['frame_width_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['frame_height_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['resolution_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['resolution_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['picture_offset_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['picture_offset_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['frame_rate_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader']['theora']['frame_rate_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['color_space_id'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader']['theora']['nominal_bitrate'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); $filedataoffset += 3; $info['ogg']['pageheader']['theora']['flags'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['theora']['quality'] = ($info['ogg']['pageheader']['theora']['flags'] & 0xFC00) >> 10; $info['ogg']['pageheader']['theora']['kfg_shift'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x03E0) >> 5; $info['ogg']['pageheader']['theora']['pixel_format_id'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0018) >> 3; $info['ogg']['pageheader']['theora']['reserved'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0007) >> 0; // should be 0 $info['ogg']['pageheader']['theora']['color_space'] = self::TheoraColorSpace($info['ogg']['pageheader']['theora']['color_space_id']); $info['ogg']['pageheader']['theora']['pixel_format'] = self::TheoraPixelFormat($info['ogg']['pageheader']['theora']['pixel_format_id']); $info['video']['dataformat'] = 'theora'; $info['mime_type'] = 'video/ogg'; //$info['audio']['bitrate_mode'] = 'abr'; //$info['audio']['lossless'] = false; $info['video']['resolution_x'] = $info['ogg']['pageheader']['theora']['resolution_x']; $info['video']['resolution_y'] = $info['ogg']['pageheader']['theora']['resolution_y']; if ($info['ogg']['pageheader']['theora']['frame_rate_denominator'] > 0) { $info['video']['frame_rate'] = (float) $info['ogg']['pageheader']['theora']['frame_rate_numerator'] / $info['ogg']['pageheader']['theora']['frame_rate_denominator']; } if ($info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] > 0) { $info['video']['pixel_aspect_ratio'] = (float) $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] / $info['ogg']['pageheader']['theora']['pixel_aspect_denominator']; } $this->warning('Ogg Theora (v3) not fully supported in this version of getID3 ['.$this->getid3->version().'] -- bitrate, playtime and all audio data are currently unavailable'); } elseif (substr($filedata, 0, 8) == "fishead\x00") { // Ogg Skeleton version 3.0 Format Specification // http://xiph.org/ogg/doc/skeleton.html $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['version_major'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['skeleton']['fishead']['raw']['version_minor'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fishead']['raw']['utc'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 20)); $filedataoffset += 20; $info['ogg']['skeleton']['fishead']['version'] = $info['ogg']['skeleton']['fishead']['raw']['version_major'].'.'.$info['ogg']['skeleton']['fishead']['raw']['version_minor']; $info['ogg']['skeleton']['fishead']['presentationtime'] = getid3_lib::SafeDiv($info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'], $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator']); $info['ogg']['skeleton']['fishead']['basetime'] = getid3_lib::SafeDiv($info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'], $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator']); $info['ogg']['skeleton']['fishead']['utc'] = $info['ogg']['skeleton']['fishead']['raw']['utc']; $counter = 0; do { $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno'].'.'.$counter++] = $oggpageinfo; $filedata = $this->fread($oggpageinfo['page_length']); $this->fseek($oggpageinfo['page_end_offset']); if (substr($filedata, 0, 8) == "fisbone\x00") { $filedataoffset = 8; $info['ogg']['skeleton']['fisbone']['raw']['message_header_offset'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['serial_number'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['number_header_packets'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['granulerate_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['granulerate_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['basegranule'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $info['ogg']['skeleton']['fisbone']['raw']['preroll'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['skeleton']['fisbone']['raw']['granuleshift'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['skeleton']['fisbone']['raw']['padding'] = substr($filedata, $filedataoffset, 3); $filedataoffset += 3; } elseif (substr($filedata, 1, 6) == 'theora') { $info['video']['dataformat'] = 'theora1'; $this->error('Ogg Theora (v1) not correctly handled in this version of getID3 ['.$this->getid3->version().']'); //break; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); } else { $this->error('unexpected'); //break; } //} while ($oggpageinfo['page_seqno'] == 0); } while (($oggpageinfo['page_seqno'] == 0) && (substr($filedata, 0, 8) != "fisbone\x00")); $this->fseek($oggpageinfo['page_start_offset']); $this->error('Ogg Skeleton not correctly handled in this version of getID3 ['.$this->getid3->version().']'); //return false; } elseif (substr($filedata, 0, 5) == "\x7F".'FLAC') { // https://xiph.org/flac/ogg_mapping.html $info['audio']['dataformat'] = 'flac'; $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['lossless'] = true; $info['ogg']['flac']['header']['version_major'] = ord(substr($filedata, 5, 1)); $info['ogg']['flac']['header']['version_minor'] = ord(substr($filedata, 6, 1)); $info['ogg']['flac']['header']['header_packets'] = getid3_lib::BigEndian2Int(substr($filedata, 7, 2)) + 1; // "A two-byte, big-endian binary number signifying the number of header (non-audio) packets, not including this one. This number may be zero (0x0000) to signify 'unknown' but be aware that some decoders may not be able to handle such streams." $info['ogg']['flac']['header']['magic'] = substr($filedata, 9, 4); if ($info['ogg']['flac']['header']['magic'] != 'fLaC') { $this->error('Ogg-FLAC expecting "fLaC", found "'.$info['ogg']['flac']['header']['magic'].'" ('.trim(getid3_lib::PrintHexBytes($info['ogg']['flac']['header']['magic'])).')'); return false; } $info['ogg']['flac']['header']['STREAMINFO_bytes'] = getid3_lib::BigEndian2Int(substr($filedata, 13, 4)); $info['flac']['STREAMINFO'] = getid3_flac::parseSTREAMINFOdata(substr($filedata, 17, 34)); if (!empty($info['flac']['STREAMINFO']['sample_rate'])) { $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['sample_rate'] = $info['flac']['STREAMINFO']['sample_rate']; $info['audio']['channels'] = $info['flac']['STREAMINFO']['channels']; $info['audio']['bits_per_sample'] = $info['flac']['STREAMINFO']['bits_per_sample']; $info['playtime_seconds'] = getid3_lib::SafeDiv($info['flac']['STREAMINFO']['samples_stream'], $info['flac']['STREAMINFO']['sample_rate']); } } else { $this->error('Expecting one of "vorbis", "Speex", "OpusHead", "vorbis", "fishhead", "theora", "fLaC" identifier strings, found "'.substr($filedata, 0, 8).'"'); unset($info['ogg']); unset($info['mime_type']); return false; } // Page 2 - Comment Header $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; switch ($info['audio']['dataformat']) { case 'vorbis': $filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, 0, 1)); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6); // hard-coded to 'vorbis' $this->ParseVorbisComments(); break; case 'flac': $flac = new getid3_flac($this->getid3); if (!$flac->parseMETAdata()) { $this->error('Failed to parse FLAC headers'); return false; } unset($flac); break; case 'speex': $this->fseek($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); $this->ParseVorbisComments(); break; case 'opus': $filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 0, 8); // hard-coded to 'OpusTags' if(substr($filedata, 0, 8) != 'OpusTags') { $this->error('Expected "OpusTags" as header but got "'.substr($filedata, 0, 8).'"'); return false; } $this->ParseVorbisComments(); break; } // Last Page - Number of Samples if (!getid3_lib::intValueSupported($info['avdataend'])) { $this->warning('Unable to parse Ogg end chunk file (PHP does not support file operations beyond '.round(PHP_INT_MAX / 1073741824).'GB)'); } else { $this->fseek(max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0)); $LastChunkOfOgg = strrev($this->fread($this->getid3->fread_buffer_size())); if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { if (substr($LastChunkOfOgg, 13, 8) === "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF") { // https://github.com/JamesHeinrich/getID3/issues/450 // "Sometimes, Opus encoders (WhatsApp voice registrations and others) add a special last header with a granule duration of 0xFFFFFFFFFFFFFF. // This value indicates "this is the end," but must be ignored; otherwise, it makes calculations wrong." $LastOggSpostion = strpos($LastChunkOfOgg, 'SggO', $LastOggSpostion + 1); } $this->fseek($info['avdataend'] - ($LastOggSpostion + strlen('SggO'))); $info['avdataend'] = $this->ftell(); $info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader(); $info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position']; if ($info['ogg']['samples'] == 0) { $this->error('Corrupt Ogg file: eos.number of samples == zero'); return false; } if (!empty($info['audio']['sample_rate'])) { $info['ogg']['bitrate_average'] = (($info['avdataend'] - $info['avdataoffset']) * 8) * $info['audio']['sample_rate'] / $info['ogg']['samples']; } } } if (!empty($info['ogg']['bitrate_average'])) { $info['audio']['bitrate'] = $info['ogg']['bitrate_average']; } elseif (!empty($info['ogg']['bitrate_nominal'])) { $info['audio']['bitrate'] = $info['ogg']['bitrate_nominal']; } elseif (!empty($info['ogg']['bitrate_min']) && !empty($info['ogg']['bitrate_max'])) { $info['audio']['bitrate'] = ($info['ogg']['bitrate_min'] + $info['ogg']['bitrate_max']) / 2; } if (isset($info['audio']['bitrate']) && !isset($info['playtime_seconds'])) { if ($info['audio']['bitrate'] == 0) { $this->error('Corrupt Ogg file: bitrate_audio == zero'); return false; } $info['playtime_seconds'] = (float) ((($info['avdataend'] - $info['avdataoffset']) * 8) / $info['audio']['bitrate']); } if (isset($info['ogg']['vendor'])) { $info['audio']['encoder'] = preg_replace('/^Encoded with /', '', $info['ogg']['vendor']); // Vorbis only if ($info['audio']['dataformat'] == 'vorbis') { // Vorbis 1.0 starts with Xiph.Org if (preg_match('/^Xiph.Org/', $info['audio']['encoder'])) { if ($info['audio']['bitrate_mode'] == 'abr') { // Set -b 128 on abr files $info['audio']['encoder_options'] = '-b '.round($info['ogg']['bitrate_nominal'] / 1000); } elseif (($info['audio']['bitrate_mode'] == 'vbr') && ($info['audio']['channels'] == 2) && ($info['audio']['sample_rate'] >= 44100) && ($info['audio']['sample_rate'] <= 48000)) { // Set -q N on vbr files $info['audio']['encoder_options'] = '-q '.$this->get_quality_from_nominal_bitrate($info['ogg']['bitrate_nominal']); } } if (empty($info['audio']['encoder_options']) && !empty($info['ogg']['bitrate_nominal'])) { $info['audio']['encoder_options'] = 'Nominal bitrate: '.intval(round($info['ogg']['bitrate_nominal'] / 1000)).'kbps'; } } } return true; } /** * @param string $filedata * @param int $filedataoffset * @param array $oggpageinfo * * @return bool */ public function ParseVorbisPageHeader(&$filedata, &$filedataoffset, &$oggpageinfo) { $info = &$this->getid3->info; $info['audio']['dataformat'] = 'vorbis'; $info['audio']['lossless'] = false; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, $filedataoffset, 6); // hard-coded to 'vorbis' $filedataoffset += 6; $info['ogg']['bitstreamversion'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['numberofchannels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $info['audio']['channels'] = $info['ogg']['numberofchannels']; $info['ogg']['samplerate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; if ($info['ogg']['samplerate'] == 0) { $this->error('Corrupt Ogg file: sample rate == zero'); return false; } $info['audio']['sample_rate'] = $info['ogg']['samplerate']; $info['ogg']['samples'] = 0; // filled in later $info['ogg']['bitrate_average'] = 0; // filled in later $info['ogg']['bitrate_max'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['bitrate_nominal'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['bitrate_min'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $info['ogg']['blocksize_small'] = pow(2, getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)) & 0x0F); $info['ogg']['blocksize_large'] = pow(2, (getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)) & 0xF0) >> 4); $info['ogg']['stop_bit'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); // must be 1, marks end of packet $info['audio']['bitrate_mode'] = 'vbr'; // overridden if actually abr if ($info['ogg']['bitrate_max'] == 0xFFFFFFFF) { unset($info['ogg']['bitrate_max']); $info['audio']['bitrate_mode'] = 'abr'; } if ($info['ogg']['bitrate_nominal'] == 0xFFFFFFFF) { unset($info['ogg']['bitrate_nominal']); } if ($info['ogg']['bitrate_min'] == 0xFFFFFFFF) { unset($info['ogg']['bitrate_min']); $info['audio']['bitrate_mode'] = 'abr'; } return true; } /** * @link http://tools.ietf.org/html/draft-ietf-codec-oggopus-03 * * @param string $filedata * @param int $filedataoffset * @param array $oggpageinfo * * @return bool */ public function ParseOpusPageHeader(&$filedata, &$filedataoffset, &$oggpageinfo) { $info = &$this->getid3->info; $info['audio']['dataformat'] = 'opus'; $info['mime_type'] = 'audio/ogg; codecs=opus'; /** @todo find a usable way to detect abr (vbr that is padded to be abr) */ $info['audio']['bitrate_mode'] = 'vbr'; $info['audio']['lossless'] = false; $info['ogg']['pageheader']['opus']['opus_magic'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'OpusHead' $filedataoffset += 8; $info['ogg']['pageheader']['opus']['version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; if ($info['ogg']['pageheader']['opus']['version'] < 1 || $info['ogg']['pageheader']['opus']['version'] > 15) { $this->error('Unknown opus version number (only accepting 1-15)'); return false; } $info['ogg']['pageheader']['opus']['out_channel_count'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; if ($info['ogg']['pageheader']['opus']['out_channel_count'] == 0) { $this->error('Invalid channel count in opus header (must not be zero)'); return false; } $info['ogg']['pageheader']['opus']['pre_skip'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); $filedataoffset += 2; $info['ogg']['pageheader']['opus']['input_sample_rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; //$info['ogg']['pageheader']['opus']['output_gain'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); //$filedataoffset += 2; //$info['ogg']['pageheader']['opus']['channel_mapping_family'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); //$filedataoffset += 1; $info['opus']['opus_version'] = $info['ogg']['pageheader']['opus']['version']; $info['opus']['sample_rate_input'] = $info['ogg']['pageheader']['opus']['input_sample_rate']; $info['opus']['out_channel_count'] = $info['ogg']['pageheader']['opus']['out_channel_count']; $info['audio']['channels'] = $info['opus']['out_channel_count']; $info['audio']['sample_rate_input'] = $info['opus']['sample_rate_input']; $info['audio']['sample_rate'] = 48000; // "All Opus audio is coded at 48 kHz, and should also be decoded at 48 kHz for playback (unless the target hardware does not support this sampling rate). However, this field may be used to resample the audio back to the original sampling rate, for example, when saving the output to a file." -- https://mf4.xiph.org/jenkins/view/opus/job/opusfile-unix/ws/doc/html/structOpusHead.html return true; } /** * @return array|false */ public function ParseOggPageHeader() { // http://xiph.org/ogg/vorbis/doc/framing.html $oggheader = array(); $oggheader['page_start_offset'] = $this->ftell(); // where we started from in the file $filedata = $this->fread($this->getid3->fread_buffer_size()); $filedataoffset = 0; while (substr($filedata, $filedataoffset++, 4) != 'OggS') { if (($this->ftell() - $oggheader['page_start_offset']) >= $this->getid3->fread_buffer_size()) { // should be found before here return false; } if (($filedataoffset + 28) > strlen($filedata)) { if ($this->feof() || (($filedata .= $this->fread($this->getid3->fread_buffer_size())) === '')) { // get some more data, unless eof, in which case fail return false; } } } $filedataoffset += strlen('OggS') - 1; // page, delimited by 'OggS' $oggheader['stream_structver'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $oggheader['flags_raw'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $oggheader['flags']['fresh'] = (bool) ($oggheader['flags_raw'] & 0x01); // fresh packet $oggheader['flags']['bos'] = (bool) ($oggheader['flags_raw'] & 0x02); // first page of logical bitstream (bos) $oggheader['flags']['eos'] = (bool) ($oggheader['flags_raw'] & 0x04); // last page of logical bitstream (eos) $oggheader['pcm_abs_position'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); $filedataoffset += 8; $oggheader['stream_serialno'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $oggheader['page_seqno'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $oggheader['page_checksum'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $oggheader['page_segments'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $oggheader['page_length'] = 0; for ($i = 0; $i < $oggheader['page_segments']; $i++) { $oggheader['segment_table'][$i] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); $filedataoffset += 1; $oggheader['page_length'] += $oggheader['segment_table'][$i]; } $oggheader['header_end_offset'] = $oggheader['page_start_offset'] + $filedataoffset; $oggheader['page_end_offset'] = $oggheader['header_end_offset'] + $oggheader['page_length']; $this->fseek($oggheader['header_end_offset']); return $oggheader; } /** * @link http://xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-810005 * * @return bool */ public function ParseVorbisComments() { $info = &$this->getid3->info; $OriginalOffset = $this->ftell(); $commentdata = null; $commentdataoffset = 0; $VorbisCommentPage = 1; $CommentStartOffset = 0; switch ($info['audio']['dataformat']) { case 'vorbis': case 'speex': case 'opus': $CommentStartOffset = $info['ogg']['pageheader'][$VorbisCommentPage]['page_start_offset']; // Second Ogg page, after header block $this->fseek($CommentStartOffset); $commentdataoffset = 27 + $info['ogg']['pageheader'][$VorbisCommentPage]['page_segments']; $commentdata = $this->fread(self::OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1) + $commentdataoffset); if ($info['audio']['dataformat'] == 'vorbis') { $commentdataoffset += (strlen('vorbis') + 1); } else if ($info['audio']['dataformat'] == 'opus') { $commentdataoffset += strlen('OpusTags'); } break; case 'flac': $CommentStartOffset = $info['flac']['VORBIS_COMMENT']['raw']['offset'] + 4; $this->fseek($CommentStartOffset); $commentdata = $this->fread($info['flac']['VORBIS_COMMENT']['raw']['block_length']); break; default: return false; } $VendorSize = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); $commentdataoffset += 4; $info['ogg']['vendor'] = substr($commentdata, $commentdataoffset, $VendorSize); $commentdataoffset += $VendorSize; $CommentsCount = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); $commentdataoffset += 4; $info['avdataoffset'] = $CommentStartOffset + $commentdataoffset; $basicfields = array('TITLE', 'ARTIST', 'ALBUM', 'TRACKNUMBER', 'GENRE', 'DATE', 'DESCRIPTION', 'COMMENT'); $ThisFileInfo_ogg_comments_raw = &$info['ogg']['comments_raw']; for ($i = 0; $i < $CommentsCount; $i++) { if ($i >= 10000) { // https://github.com/owncloud/music/issues/212#issuecomment-43082336 $this->warning('Unexpectedly large number ('.$CommentsCount.') of Ogg comments - breaking after reading '.$i.' comments'); break; } $ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] = $CommentStartOffset + $commentdataoffset; if ($this->ftell() < ($ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] + 4)) { if ($oggpageinfo = $this->ParseOggPageHeader()) { $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; $VorbisCommentPage++; // First, save what we haven't read yet $AsYetUnusedData = substr($commentdata, $commentdataoffset); // Then take that data off the end $commentdata = substr($commentdata, 0, $commentdataoffset); // Add [headerlength] bytes of dummy data for the Ogg Page Header, just to keep absolute offsets correct $commentdata .= str_repeat("\x00", 27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); $commentdataoffset += (27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); // Finally, stick the unused data back on the end $commentdata .= $AsYetUnusedData; //$commentdata .= $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); $commentdata .= $this->fread($this->OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1)); } } $ThisFileInfo_ogg_comments_raw[$i]['size'] = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); // replace avdataoffset with position just after the last vorbiscomment $info['avdataoffset'] = $ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] + $ThisFileInfo_ogg_comments_raw[$i]['size'] + 4; $commentdataoffset += 4; while ((strlen($commentdata) - $commentdataoffset) < $ThisFileInfo_ogg_comments_raw[$i]['size']) { if (($ThisFileInfo_ogg_comments_raw[$i]['size'] > $info['avdataend']) || ($ThisFileInfo_ogg_comments_raw[$i]['size'] < 0)) { $this->warning('Invalid Ogg comment size (comment #'.$i.', claims to be '.number_format($ThisFileInfo_ogg_comments_raw[$i]['size']).' bytes) - aborting reading comments'); break 2; } $VorbisCommentPage++; if ($oggpageinfo = $this->ParseOggPageHeader()) { $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; // First, save what we haven't read yet $AsYetUnusedData = substr($commentdata, $commentdataoffset); // Then take that data off the end $commentdata = substr($commentdata, 0, $commentdataoffset); // Add [headerlength] bytes of dummy data for the Ogg Page Header, just to keep absolute offsets correct $commentdata .= str_repeat("\x00", 27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); $commentdataoffset += (27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); // Finally, stick the unused data back on the end $commentdata .= $AsYetUnusedData; //$commentdata .= $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); if (!isset($info['ogg']['pageheader'][$VorbisCommentPage])) { $this->warning('undefined Vorbis Comment page "'.$VorbisCommentPage.'" at offset '.$this->ftell()); break; } $readlength = self::OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1); if ($readlength <= 0) { $this->warning('invalid length Vorbis Comment page "'.$VorbisCommentPage.'" at offset '.$this->ftell()); break; } $commentdata .= $this->fread($readlength); //$filebaseoffset += $oggpageinfo['header_end_offset'] - $oggpageinfo['page_start_offset']; } else { $this->warning('failed to ParseOggPageHeader() at offset '.$this->ftell()); break; } } $ThisFileInfo_ogg_comments_raw[$i]['offset'] = $commentdataoffset; $commentstring = substr($commentdata, $commentdataoffset, $ThisFileInfo_ogg_comments_raw[$i]['size']); $commentdataoffset += $ThisFileInfo_ogg_comments_raw[$i]['size']; if (!$commentstring) { // no comment? $this->warning('Blank Ogg comment ['.$i.']'); } elseif (strstr($commentstring, '=')) { $commentexploded = explode('=', $commentstring, 2); $ThisFileInfo_ogg_comments_raw[$i]['key'] = strtoupper($commentexploded[0]); $ThisFileInfo_ogg_comments_raw[$i]['value'] = (isset($commentexploded[1]) ? $commentexploded[1] : ''); if ($ThisFileInfo_ogg_comments_raw[$i]['key'] == 'METADATA_BLOCK_PICTURE') { // http://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE // The unencoded format is that of the FLAC picture block. The fields are stored in big endian order as in FLAC, picture data is stored according to the relevant standard. // http://flac.sourceforge.net/format.html#metadata_block_picture $flac = new getid3_flac($this->getid3); $flac->setStringMode(base64_decode($ThisFileInfo_ogg_comments_raw[$i]['value'])); $flac->parsePICTURE(); $info['ogg']['comments']['picture'][] = $flac->getid3->info['flac']['PICTURE'][0]; unset($flac); } elseif ($ThisFileInfo_ogg_comments_raw[$i]['key'] == 'COVERART') { $data = base64_decode($ThisFileInfo_ogg_comments_raw[$i]['value']); $this->notice('Found deprecated COVERART tag, it should be replaced in honor of METADATA_BLOCK_PICTURE structure'); /** @todo use 'coverartmime' where available */ $imageinfo = getid3_lib::GetDataImageSize($data); if ($imageinfo === false || !isset($imageinfo['mime'])) { $this->warning('COVERART vorbiscomment tag contains invalid image'); continue; } $ogg = new self($this->getid3); $ogg->setStringMode($data); $info['ogg']['comments']['picture'][] = array( 'image_mime' => $imageinfo['mime'], 'datalength' => strlen($data), 'picturetype' => 'cover art', 'image_height' => $imageinfo['height'], 'image_width' => $imageinfo['width'], 'data' => $ogg->saveAttachment('coverart', 0, strlen($data), $imageinfo['mime']), ); unset($ogg); } else { $info['ogg']['comments'][strtolower($ThisFileInfo_ogg_comments_raw[$i]['key'])][] = $ThisFileInfo_ogg_comments_raw[$i]['value']; } } else { $this->warning('[known problem with CDex >= v1.40, < v1.50b7] Invalid Ogg comment name/value pair ['.$i.']: '.$commentstring); } unset($ThisFileInfo_ogg_comments_raw[$i]); } unset($ThisFileInfo_ogg_comments_raw); // Replay Gain Adjustment // http://privatewww.essex.ac.uk/~djmrob/replaygain/ if (isset($info['ogg']['comments']) && is_array($info['ogg']['comments'])) { foreach ($info['ogg']['comments'] as $index => $commentvalue) { switch ($index) { case 'rg_audiophile': case 'replaygain_album_gain': $info['replay_gain']['album']['adjustment'] = (float) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'rg_radio': case 'replaygain_track_gain': $info['replay_gain']['track']['adjustment'] = (float) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'replaygain_album_peak': $info['replay_gain']['album']['peak'] = (float) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'rg_peak': case 'replaygain_track_peak': $info['replay_gain']['track']['peak'] = (float) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'replaygain_reference_loudness': $info['replay_gain']['reference_volume'] = (float) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; default: // do nothing break; } } } $this->fseek($OriginalOffset); return true; } /** * @param int $mode * * @return string|null */ public static function SpeexBandModeLookup($mode) { static $SpeexBandModeLookup = array(); if (empty($SpeexBandModeLookup)) { $SpeexBandModeLookup[0] = 'narrow'; $SpeexBandModeLookup[1] = 'wide'; $SpeexBandModeLookup[2] = 'ultra-wide'; } return (isset($SpeexBandModeLookup[$mode]) ? $SpeexBandModeLookup[$mode] : null); } /** * @param array $OggInfoArray * @param int $SegmentNumber * * @return int */ public static function OggPageSegmentLength($OggInfoArray, $SegmentNumber=1) { $segmentlength = 0; for ($i = 0; $i < $SegmentNumber; $i++) { $segmentlength = 0; foreach ($OggInfoArray['segment_table'] as $key => $value) { $segmentlength += $value; if ($value < 255) { break; } } } return $segmentlength; } /** * @param int $nominal_bitrate * * @return float */ public static function get_quality_from_nominal_bitrate($nominal_bitrate) { // decrease precision $nominal_bitrate = $nominal_bitrate / 1000; if ($nominal_bitrate < 128) { // q-1 to q4 $qval = ($nominal_bitrate - 64) / 16; } elseif ($nominal_bitrate < 256) { // q4 to q8 $qval = $nominal_bitrate / 32; } elseif ($nominal_bitrate < 320) { // q8 to q9 $qval = ($nominal_bitrate + 256) / 64; } else { // q9 to q10 $qval = ($nominal_bitrate + 1300) / 180; } //return $qval; // 5.031324 //return intval($qval); // 5 return round($qval, 1); // 5 or 4.9 } /** * @param int $colorspace_id * * @return string|null */ public static function TheoraColorSpace($colorspace_id) { // http://www.theora.org/doc/Theora.pdf (table 6.3) static $TheoraColorSpaceLookup = array(); if (empty($TheoraColorSpaceLookup)) { $TheoraColorSpaceLookup[0] = 'Undefined'; $TheoraColorSpaceLookup[1] = 'Rec. 470M'; $TheoraColorSpaceLookup[2] = 'Rec. 470BG'; $TheoraColorSpaceLookup[3] = 'Reserved'; } return (isset($TheoraColorSpaceLookup[$colorspace_id]) ? $TheoraColorSpaceLookup[$colorspace_id] : null); } /** * @param int $pixelformat_id * * @return string|null */ public static function TheoraPixelFormat($pixelformat_id) { // http://www.theora.org/doc/Theora.pdf (table 6.4) static $TheoraPixelFormatLookup = array(); if (empty($TheoraPixelFormatLookup)) { $TheoraPixelFormatLookup[0] = '4:2:0'; $TheoraPixelFormatLookup[1] = 'Reserved'; $TheoraPixelFormatLookup[2] = '4:2:2'; $TheoraPixelFormatLookup[3] = '4:4:4'; } return (isset($TheoraPixelFormatLookup[$pixelformat_id]) ? $TheoraPixelFormatLookup[$pixelformat_id] : null); } } PK!ؙؙmodule.audio.ac3.phpnu&1i // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio.ac3.php // // module for analyzing AC-3 (aka Dolby Digital) audio files // // dependencies: NONE // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } class getid3_ac3 extends getid3_handler { /** * @var array */ private $AC3header = array(); /** * @var int */ private $BSIoffset = 0; const syncword = 0x0B77; /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; ///AH $info['ac3']['raw']['bsi'] = array(); $thisfile_ac3 = &$info['ac3']; $thisfile_ac3_raw = &$thisfile_ac3['raw']; $thisfile_ac3_raw_bsi = &$thisfile_ac3_raw['bsi']; // http://www.atsc.org/standards/a_52a.pdf $info['fileformat'] = 'ac3'; // An AC-3 serial coded audio bit stream is made up of a sequence of synchronization frames // Each synchronization frame contains 6 coded audio blocks (AB), each of which represent 256 // new audio samples per channel. A synchronization information (SI) header at the beginning // of each frame contains information needed to acquire and maintain synchronization. A // bit stream information (BSI) header follows SI, and contains parameters describing the coded // audio service. The coded audio blocks may be followed by an auxiliary data (Aux) field. At the // end of each frame is an error check field that includes a CRC word for error detection. An // additional CRC word is located in the SI header, the use of which, by a decoder, is optional. // // syncinfo() | bsi() | AB0 | AB1 | AB2 | AB3 | AB4 | AB5 | Aux | CRC // syncinfo() { // syncword 16 // crc1 16 // fscod 2 // frmsizecod 6 // } /* end of syncinfo */ $this->fseek($info['avdataoffset']); $tempAC3header = $this->fread(100); // should be enough to cover all data, there are some variable-length fields...? $this->AC3header['syncinfo'] = getid3_lib::BigEndian2Int(substr($tempAC3header, 0, 2)); $this->AC3header['bsi'] = getid3_lib::BigEndian2Bin(substr($tempAC3header, 2)); $thisfile_ac3_raw_bsi['bsid'] = (getid3_lib::LittleEndian2Int(substr($tempAC3header, 5, 1)) & 0xF8) >> 3; // AC3 and E-AC3 put the "bsid" version identifier in the same place, but unfortnately the 4 bytes between the syncword and the version identifier are interpreted differently, so grab it here so the following code structure can make sense unset($tempAC3header); if ($this->AC3header['syncinfo'] !== self::syncword) { if (!$this->isDependencyFor('matroska')) { unset($info['fileformat'], $info['ac3']); return $this->error('Expecting "'.dechex(self::syncword).'" at offset '.$info['avdataoffset'].', found "'.dechex($this->AC3header['syncinfo']).'"'); } } $info['audio']['dataformat'] = 'ac3'; $info['audio']['bitrate_mode'] = 'cbr'; $info['audio']['lossless'] = false; if ($thisfile_ac3_raw_bsi['bsid'] <= 8) { $thisfile_ac3_raw_bsi['crc1'] = getid3_lib::Bin2Dec($this->readHeaderBSI(16)); $thisfile_ac3_raw_bsi['fscod'] = $this->readHeaderBSI(2); // 5.4.1.3 $thisfile_ac3_raw_bsi['frmsizecod'] = $this->readHeaderBSI(6); // 5.4.1.4 if ($thisfile_ac3_raw_bsi['frmsizecod'] > 37) { // binary: 100101 - see Table 5.18 Frame Size Code Table (1 word = 16 bits) $this->warning('Unexpected ac3.bsi.frmsizecod value: '.$thisfile_ac3_raw_bsi['frmsizecod'].', bitrate not set correctly'); } $thisfile_ac3_raw_bsi['bsid'] = $this->readHeaderBSI(5); // we already know this from pre-parsing the version identifier, but re-read it to let the bitstream flow as intended $thisfile_ac3_raw_bsi['bsmod'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['acmod'] = $this->readHeaderBSI(3); if ($thisfile_ac3_raw_bsi['acmod'] & 0x01) { // If the lsb of acmod is a 1, center channel is in use and cmixlev follows in the bit stream. $thisfile_ac3_raw_bsi['cmixlev'] = $this->readHeaderBSI(2); $thisfile_ac3['center_mix_level'] = self::centerMixLevelLookup($thisfile_ac3_raw_bsi['cmixlev']); } if ($thisfile_ac3_raw_bsi['acmod'] & 0x04) { // If the msb of acmod is a 1, surround channels are in use and surmixlev follows in the bit stream. $thisfile_ac3_raw_bsi['surmixlev'] = $this->readHeaderBSI(2); $thisfile_ac3['surround_mix_level'] = self::surroundMixLevelLookup($thisfile_ac3_raw_bsi['surmixlev']); } if ($thisfile_ac3_raw_bsi['acmod'] == 0x02) { // When operating in the two channel mode, this 2-bit code indicates whether or not the program has been encoded in Dolby Surround. $thisfile_ac3_raw_bsi['dsurmod'] = $this->readHeaderBSI(2); $thisfile_ac3['dolby_surround_mode'] = self::dolbySurroundModeLookup($thisfile_ac3_raw_bsi['dsurmod']); } $thisfile_ac3_raw_bsi['flags']['lfeon'] = (bool) $this->readHeaderBSI(1); // This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1-31. // The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent. $thisfile_ac3_raw_bsi['dialnorm'] = $this->readHeaderBSI(5); // 5.4.2.8 dialnorm: Dialogue Normalization, 5 Bits $thisfile_ac3_raw_bsi['flags']['compr'] = (bool) $this->readHeaderBSI(1); // 5.4.2.9 compre: Compression Gain Word Exists, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['compr']) { $thisfile_ac3_raw_bsi['compr'] = $this->readHeaderBSI(8); // 5.4.2.10 compr: Compression Gain Word, 8 Bits $thisfile_ac3['heavy_compression'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr']); } $thisfile_ac3_raw_bsi['flags']['langcod'] = (bool) $this->readHeaderBSI(1); // 5.4.2.11 langcode: Language Code Exists, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['langcod']) { $thisfile_ac3_raw_bsi['langcod'] = $this->readHeaderBSI(8); // 5.4.2.12 langcod: Language Code, 8 Bits } $thisfile_ac3_raw_bsi['flags']['audprodinfo'] = (bool) $this->readHeaderBSI(1); // 5.4.2.13 audprodie: Audio Production Information Exists, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['audprodinfo']) { $thisfile_ac3_raw_bsi['mixlevel'] = $this->readHeaderBSI(5); // 5.4.2.14 mixlevel: Mixing Level, 5 Bits $thisfile_ac3_raw_bsi['roomtyp'] = $this->readHeaderBSI(2); // 5.4.2.15 roomtyp: Room Type, 2 Bits $thisfile_ac3['mixing_level'] = (80 + $thisfile_ac3_raw_bsi['mixlevel']).'dB'; $thisfile_ac3['room_type'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp']); } $thisfile_ac3_raw_bsi['dialnorm2'] = $this->readHeaderBSI(5); // 5.4.2.16 dialnorm2: Dialogue Normalization, ch2, 5 Bits $thisfile_ac3['dialogue_normalization2'] = '-'.$thisfile_ac3_raw_bsi['dialnorm2'].'dB'; // This indicates how far the average dialogue level is below digital 100 percent. Valid values are 1-31. The value of 0 is reserved. The values of 1 to 31 are interpreted as -1 dB to -31 dB with respect to digital 100 percent. $thisfile_ac3_raw_bsi['flags']['compr2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.17 compr2e: Compression Gain Word Exists, ch2, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['compr2']) { $thisfile_ac3_raw_bsi['compr2'] = $this->readHeaderBSI(8); // 5.4.2.18 compr2: Compression Gain Word, ch2, 8 Bits $thisfile_ac3['heavy_compression2'] = self::heavyCompression($thisfile_ac3_raw_bsi['compr2']); } $thisfile_ac3_raw_bsi['flags']['langcod2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.19 langcod2e: Language Code Exists, ch2, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['langcod2']) { $thisfile_ac3_raw_bsi['langcod2'] = $this->readHeaderBSI(8); // 5.4.2.20 langcod2: Language Code, ch2, 8 Bits } $thisfile_ac3_raw_bsi['flags']['audprodinfo2'] = (bool) $this->readHeaderBSI(1); // 5.4.2.21 audprodi2e: Audio Production Information Exists, ch2, 1 Bit if ($thisfile_ac3_raw_bsi['flags']['audprodinfo2']) { $thisfile_ac3_raw_bsi['mixlevel2'] = $this->readHeaderBSI(5); // 5.4.2.22 mixlevel2: Mixing Level, ch2, 5 Bits $thisfile_ac3_raw_bsi['roomtyp2'] = $this->readHeaderBSI(2); // 5.4.2.23 roomtyp2: Room Type, ch2, 2 Bits $thisfile_ac3['mixing_level2'] = (80 + $thisfile_ac3_raw_bsi['mixlevel2']).'dB'; $thisfile_ac3['room_type2'] = self::roomTypeLookup($thisfile_ac3_raw_bsi['roomtyp2']); } $thisfile_ac3_raw_bsi['copyright'] = (bool) $this->readHeaderBSI(1); // 5.4.2.24 copyrightb: Copyright Bit, 1 Bit $thisfile_ac3_raw_bsi['original'] = (bool) $this->readHeaderBSI(1); // 5.4.2.25 origbs: Original Bit Stream, 1 Bit $thisfile_ac3_raw_bsi['flags']['timecod1'] = $this->readHeaderBSI(2); // 5.4.2.26 timecod1e, timcode2e: Time Code (first and second) Halves Exist, 2 Bits if ($thisfile_ac3_raw_bsi['flags']['timecod1'] & 0x01) { $thisfile_ac3_raw_bsi['timecod1'] = $this->readHeaderBSI(14); // 5.4.2.27 timecod1: Time code first half, 14 bits $thisfile_ac3['timecode1'] = 0; $thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x3E00) >> 9) * 3600; // The first 5 bits of this 14-bit field represent the time in hours, with valid values of 0�23 $thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x01F8) >> 3) * 60; // The next 6 bits represent the time in minutes, with valid values of 0�59 $thisfile_ac3['timecode1'] += (($thisfile_ac3_raw_bsi['timecod1'] & 0x0003) >> 0) * 8; // The final 3 bits represents the time in 8 second increments, with valid values of 0�7 (representing 0, 8, 16, ... 56 seconds) } if ($thisfile_ac3_raw_bsi['flags']['timecod1'] & 0x02) { $thisfile_ac3_raw_bsi['timecod2'] = $this->readHeaderBSI(14); // 5.4.2.28 timecod2: Time code second half, 14 bits $thisfile_ac3['timecode2'] = 0; $thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x3800) >> 11) * 1; // The first 3 bits of this 14-bit field represent the time in seconds, with valid values from 0�7 (representing 0-7 seconds) $thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x07C0) >> 6) * (1 / 30); // The next 5 bits represents the time in frames, with valid values from 0�29 (one frame = 1/30th of a second) $thisfile_ac3['timecode2'] += (($thisfile_ac3_raw_bsi['timecod2'] & 0x003F) >> 0) * ((1 / 30) / 60); // The final 6 bits represents fractions of 1/64 of a frame, with valid values from 0�63 } $thisfile_ac3_raw_bsi['flags']['addbsi'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['addbsi']) { $thisfile_ac3_raw_bsi['addbsi_length'] = $this->readHeaderBSI(6) + 1; // This 6-bit code, which exists only if addbside is a 1, indicates the length in bytes of additional bit stream information. The valid range of addbsil is 0�63, indicating 1�64 additional bytes, respectively. $this->AC3header['bsi'] .= getid3_lib::BigEndian2Bin($this->fread($thisfile_ac3_raw_bsi['addbsi_length'])); $thisfile_ac3_raw_bsi['addbsi_data'] = substr($this->AC3header['bsi'], $this->BSIoffset, $thisfile_ac3_raw_bsi['addbsi_length'] * 8); $this->BSIoffset += $thisfile_ac3_raw_bsi['addbsi_length'] * 8; } } elseif ($thisfile_ac3_raw_bsi['bsid'] <= 16) { // E-AC3 $this->error('E-AC3 parsing is incomplete and experimental in this version of getID3 ('.$this->getid3->version().'). Notably the bitrate calculations are wrong -- value might (or not) be correct, but it is not calculated correctly. Email info@getid3.org if you know how to calculate EAC3 bitrate correctly.'); $info['audio']['dataformat'] = 'eac3'; $thisfile_ac3_raw_bsi['strmtyp'] = $this->readHeaderBSI(2); $thisfile_ac3_raw_bsi['substreamid'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['frmsiz'] = $this->readHeaderBSI(11); $thisfile_ac3_raw_bsi['fscod'] = $this->readHeaderBSI(2); if ($thisfile_ac3_raw_bsi['fscod'] == 3) { $thisfile_ac3_raw_bsi['fscod2'] = $this->readHeaderBSI(2); $thisfile_ac3_raw_bsi['numblkscod'] = 3; // six blocks per syncframe } else { $thisfile_ac3_raw_bsi['numblkscod'] = $this->readHeaderBSI(2); } $thisfile_ac3['bsi']['blocks_per_sync_frame'] = self::blocksPerSyncFrame($thisfile_ac3_raw_bsi['numblkscod']); $thisfile_ac3_raw_bsi['acmod'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['flags']['lfeon'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['bsid'] = $this->readHeaderBSI(5); // we already know this from pre-parsing the version identifier, but re-read it to let the bitstream flow as intended $thisfile_ac3_raw_bsi['dialnorm'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['flags']['compr'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['compr']) { $thisfile_ac3_raw_bsi['compr'] = $this->readHeaderBSI(8); } if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value) $thisfile_ac3_raw_bsi['dialnorm2'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['flags']['compr2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['compr2']) { $thisfile_ac3_raw_bsi['compr2'] = $this->readHeaderBSI(8); } } if ($thisfile_ac3_raw_bsi['strmtyp'] == 1) { // if dependent stream $thisfile_ac3_raw_bsi['flags']['chanmap'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['chanmap']) { $thisfile_ac3_raw_bsi['chanmap'] = $this->readHeaderBSI(8); } } $thisfile_ac3_raw_bsi['flags']['mixmdat'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['mixmdat']) { // Mixing metadata if ($thisfile_ac3_raw_bsi['acmod'] > 2) { // if more than 2 channels $thisfile_ac3_raw_bsi['dmixmod'] = $this->readHeaderBSI(2); } if (($thisfile_ac3_raw_bsi['acmod'] & 0x01) && ($thisfile_ac3_raw_bsi['acmod'] > 2)) { // if three front channels exist $thisfile_ac3_raw_bsi['ltrtcmixlev'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['lorocmixlev'] = $this->readHeaderBSI(3); } if ($thisfile_ac3_raw_bsi['acmod'] & 0x04) { // if a surround channel exists $thisfile_ac3_raw_bsi['ltrtsurmixlev'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['lorosurmixlev'] = $this->readHeaderBSI(3); } if ($thisfile_ac3_raw_bsi['flags']['lfeon']) { // if the LFE channel exists $thisfile_ac3_raw_bsi['flags']['lfemixlevcod'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['lfemixlevcod']) { $thisfile_ac3_raw_bsi['lfemixlevcod'] = $this->readHeaderBSI(5); } } if ($thisfile_ac3_raw_bsi['strmtyp'] == 0) { // if independent stream $thisfile_ac3_raw_bsi['flags']['pgmscl'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['pgmscl']) { $thisfile_ac3_raw_bsi['pgmscl'] = $this->readHeaderBSI(6); } if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value) $thisfile_ac3_raw_bsi['flags']['pgmscl2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['pgmscl2']) { $thisfile_ac3_raw_bsi['pgmscl2'] = $this->readHeaderBSI(6); } } $thisfile_ac3_raw_bsi['flags']['extpgmscl'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['extpgmscl']) { $thisfile_ac3_raw_bsi['extpgmscl'] = $this->readHeaderBSI(6); } $thisfile_ac3_raw_bsi['mixdef'] = $this->readHeaderBSI(2); if ($thisfile_ac3_raw_bsi['mixdef'] == 1) { // mixing option 2 $thisfile_ac3_raw_bsi['premixcmpsel'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['drcsrc'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['premixcmpscl'] = $this->readHeaderBSI(3); } elseif ($thisfile_ac3_raw_bsi['mixdef'] == 2) { // mixing option 3 $thisfile_ac3_raw_bsi['mixdata'] = $this->readHeaderBSI(12); } elseif ($thisfile_ac3_raw_bsi['mixdef'] == 3) { // mixing option 4 $mixdefbitsread = 0; $thisfile_ac3_raw_bsi['mixdeflen'] = $this->readHeaderBSI(5); $mixdefbitsread += 5; $thisfile_ac3_raw_bsi['flags']['mixdata2'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['mixdata2']) { $thisfile_ac3_raw_bsi['premixcmpsel'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; $thisfile_ac3_raw_bsi['drcsrc'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; $thisfile_ac3_raw_bsi['premixcmpscl'] = $this->readHeaderBSI(3); $mixdefbitsread += 3; $thisfile_ac3_raw_bsi['flags']['extpgmlscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmlscl']) { $thisfile_ac3_raw_bsi['extpgmlscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['extpgmcscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmcscl']) { $thisfile_ac3_raw_bsi['extpgmcscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['extpgmrscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmrscl']) { $thisfile_ac3_raw_bsi['extpgmrscl'] = $this->readHeaderBSI(4); } $thisfile_ac3_raw_bsi['flags']['extpgmlsscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmlsscl']) { $thisfile_ac3_raw_bsi['extpgmlsscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['extpgmrsscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmrsscl']) { $thisfile_ac3_raw_bsi['extpgmrsscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['extpgmlfescl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmlfescl']) { $thisfile_ac3_raw_bsi['extpgmlfescl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['dmixscl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['dmixscl']) { $thisfile_ac3_raw_bsi['dmixscl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['addch'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['addch']) { $thisfile_ac3_raw_bsi['flags']['extpgmaux1scl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmaux1scl']) { $thisfile_ac3_raw_bsi['extpgmaux1scl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } $thisfile_ac3_raw_bsi['flags']['extpgmaux2scl'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['extpgmaux2scl']) { $thisfile_ac3_raw_bsi['extpgmaux2scl'] = $this->readHeaderBSI(4); $mixdefbitsread += 4; } } } $thisfile_ac3_raw_bsi['flags']['mixdata3'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['mixdata3']) { $thisfile_ac3_raw_bsi['spchdat'] = $this->readHeaderBSI(5); $mixdefbitsread += 5; $thisfile_ac3_raw_bsi['flags']['addspchdat'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['addspchdat']) { $thisfile_ac3_raw_bsi['spchdat1'] = $this->readHeaderBSI(5); $mixdefbitsread += 5; $thisfile_ac3_raw_bsi['spchan1att'] = $this->readHeaderBSI(2); $mixdefbitsread += 2; $thisfile_ac3_raw_bsi['flags']['addspchdat1'] = (bool) $this->readHeaderBSI(1); $mixdefbitsread += 1; if ($thisfile_ac3_raw_bsi['flags']['addspchdat1']) { $thisfile_ac3_raw_bsi['spchdat2'] = $this->readHeaderBSI(5); $mixdefbitsread += 5; $thisfile_ac3_raw_bsi['spchan2att'] = $this->readHeaderBSI(3); $mixdefbitsread += 3; } } } $mixdata_bits = (8 * ($thisfile_ac3_raw_bsi['mixdeflen'] + 2)) - $mixdefbitsread; $mixdata_fill = (($mixdata_bits % 8) ? 8 - ($mixdata_bits % 8) : 0); $thisfile_ac3_raw_bsi['mixdata'] = $this->readHeaderBSI($mixdata_bits); $thisfile_ac3_raw_bsi['mixdatafill'] = $this->readHeaderBSI($mixdata_fill); unset($mixdefbitsread, $mixdata_bits, $mixdata_fill); } if ($thisfile_ac3_raw_bsi['acmod'] < 2) { // if mono or dual mono source $thisfile_ac3_raw_bsi['flags']['paninfo'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['paninfo']) { $thisfile_ac3_raw_bsi['panmean'] = $this->readHeaderBSI(8); $thisfile_ac3_raw_bsi['paninfo'] = $this->readHeaderBSI(6); } if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value) $thisfile_ac3_raw_bsi['flags']['paninfo2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['paninfo2']) { $thisfile_ac3_raw_bsi['panmean2'] = $this->readHeaderBSI(8); $thisfile_ac3_raw_bsi['paninfo2'] = $this->readHeaderBSI(6); } } } $thisfile_ac3_raw_bsi['flags']['frmmixcfginfo'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['frmmixcfginfo']) { // mixing configuration information if ($thisfile_ac3_raw_bsi['numblkscod'] == 0) { $thisfile_ac3_raw_bsi['blkmixcfginfo'][0] = $this->readHeaderBSI(5); } else { for ($blk = 0; $blk < $thisfile_ac3_raw_bsi['numblkscod']; $blk++) { $thisfile_ac3_raw_bsi['flags']['blkmixcfginfo'.$blk] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['blkmixcfginfo'.$blk]) { // mixing configuration information $thisfile_ac3_raw_bsi['blkmixcfginfo'][$blk] = $this->readHeaderBSI(5); } } } } } } $thisfile_ac3_raw_bsi['flags']['infomdat'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['infomdat']) { // Informational metadata $thisfile_ac3_raw_bsi['bsmod'] = $this->readHeaderBSI(3); $thisfile_ac3_raw_bsi['flags']['copyrightb'] = (bool) $this->readHeaderBSI(1); $thisfile_ac3_raw_bsi['flags']['origbs'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['acmod'] == 2) { // if in 2/0 mode $thisfile_ac3_raw_bsi['dsurmod'] = $this->readHeaderBSI(2); $thisfile_ac3_raw_bsi['dheadphonmod'] = $this->readHeaderBSI(2); } if ($thisfile_ac3_raw_bsi['acmod'] >= 6) { // if both surround channels exist $thisfile_ac3_raw_bsi['dsurexmod'] = $this->readHeaderBSI(2); } $thisfile_ac3_raw_bsi['flags']['audprodi'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['audprodi']) { $thisfile_ac3_raw_bsi['mixlevel'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['roomtyp'] = $this->readHeaderBSI(2); $thisfile_ac3_raw_bsi['flags']['adconvtyp'] = (bool) $this->readHeaderBSI(1); } if ($thisfile_ac3_raw_bsi['acmod'] == 0) { // if 1+1 mode (dual mono, so some items need a second value) $thisfile_ac3_raw_bsi['flags']['audprodi2'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['audprodi2']) { $thisfile_ac3_raw_bsi['mixlevel2'] = $this->readHeaderBSI(5); $thisfile_ac3_raw_bsi['roomtyp2'] = $this->readHeaderBSI(2); $thisfile_ac3_raw_bsi['flags']['adconvtyp2'] = (bool) $this->readHeaderBSI(1); } } if ($thisfile_ac3_raw_bsi['fscod'] < 3) { // if not half sample rate $thisfile_ac3_raw_bsi['flags']['sourcefscod'] = (bool) $this->readHeaderBSI(1); } } if (($thisfile_ac3_raw_bsi['strmtyp'] == 0) && ($thisfile_ac3_raw_bsi['numblkscod'] != 3)) { // if both surround channels exist $thisfile_ac3_raw_bsi['flags']['convsync'] = (bool) $this->readHeaderBSI(1); } if ($thisfile_ac3_raw_bsi['strmtyp'] == 2) { // if bit stream converted from AC-3 if ($thisfile_ac3_raw_bsi['numblkscod'] != 3) { // 6 blocks per syncframe $thisfile_ac3_raw_bsi['flags']['blkid'] = 1; } else { $thisfile_ac3_raw_bsi['flags']['blkid'] = (bool) $this->readHeaderBSI(1); } if ($thisfile_ac3_raw_bsi['flags']['blkid']) { $thisfile_ac3_raw_bsi['frmsizecod'] = $this->readHeaderBSI(6); } } $thisfile_ac3_raw_bsi['flags']['addbsi'] = (bool) $this->readHeaderBSI(1); if ($thisfile_ac3_raw_bsi['flags']['addbsi']) { $thisfile_ac3_raw_bsi['addbsil'] = $this->readHeaderBSI(6); $thisfile_ac3_raw_bsi['addbsi'] = $this->readHeaderBSI(($thisfile_ac3_raw_bsi['addbsil'] + 1) * 8); } } else { $this->error('Bit stream identification is version '.$thisfile_ac3_raw_bsi['bsid'].', but getID3() only understands up to version 16. Please submit a support ticket with a sample file.'); unset($info['ac3']); return false; } if (isset($thisfile_ac3_raw_bsi['fscod2'])) { $thisfile_ac3['sample_rate'] = self::sampleRateCodeLookup2($thisfile_ac3_raw_bsi['fscod2']); } else { $thisfile_ac3['sample_rate'] = self::sampleRateCodeLookup($thisfile_ac3_raw_bsi['fscod']); } if ($thisfile_ac3_raw_bsi['fscod'] <= 3) { $info['audio']['sample_rate'] = $thisfile_ac3['sample_rate']; } else { $this->warning('Unexpected ac3.bsi.fscod value: '.$thisfile_ac3_raw_bsi['fscod']); } if (isset($thisfile_ac3_raw_bsi['frmsizecod'])) { $thisfile_ac3['frame_length'] = self::frameSizeLookup($thisfile_ac3_raw_bsi['frmsizecod'], $thisfile_ac3_raw_bsi['fscod']); $thisfile_ac3['bitrate'] = self::bitrateLookup($thisfile_ac3_raw_bsi['frmsizecod']); } elseif (!empty($thisfile_ac3_raw_bsi['frmsiz'])) { // this isn't right, but it's (usually) close, roughly 5% less than it should be. // but WHERE is the actual bitrate value stored in EAC3?? email info@getid3.org if you know! $thisfile_ac3['bitrate'] = ($thisfile_ac3_raw_bsi['frmsiz'] + 1) * 16 * 30; // The frmsiz field shall contain a value one less than the overall size of the coded syncframe in 16-bit words. That is, this field may assume a value ranging from 0 to 2047, and these values correspond to syncframe sizes ranging from 1 to 2048. // kludge-fix to make it approximately the expected value, still not "right": $thisfile_ac3['bitrate'] = round(($thisfile_ac3['bitrate'] * 1.05) / 16000) * 16000; } $info['audio']['bitrate'] = $thisfile_ac3['bitrate']; if (isset($thisfile_ac3_raw_bsi['bsmod']) && isset($thisfile_ac3_raw_bsi['acmod'])) { $thisfile_ac3['service_type'] = self::serviceTypeLookup($thisfile_ac3_raw_bsi['bsmod'], $thisfile_ac3_raw_bsi['acmod']); } $ac3_coding_mode = self::audioCodingModeLookup($thisfile_ac3_raw_bsi['acmod']); foreach($ac3_coding_mode as $key => $value) { $thisfile_ac3[$key] = $value; } switch ($thisfile_ac3_raw_bsi['acmod']) { case 0: case 1: $info['audio']['channelmode'] = 'mono'; break; case 3: case 4: $info['audio']['channelmode'] = 'stereo'; break; default: $info['audio']['channelmode'] = 'surround'; break; } $info['audio']['channels'] = $thisfile_ac3['num_channels']; $thisfile_ac3['lfe_enabled'] = $thisfile_ac3_raw_bsi['flags']['lfeon']; if ($thisfile_ac3_raw_bsi['flags']['lfeon']) { $info['audio']['channels'] .= '.1'; } $thisfile_ac3['channels_enabled'] = self::channelsEnabledLookup($thisfile_ac3_raw_bsi['acmod'], $thisfile_ac3_raw_bsi['flags']['lfeon']); $thisfile_ac3['dialogue_normalization'] = '-'.$thisfile_ac3_raw_bsi['dialnorm'].'dB'; return true; } /** * @param int $length * * @return int */ private function readHeaderBSI($length) { $data = substr($this->AC3header['bsi'], $this->BSIoffset, $length); $this->BSIoffset += $length; return bindec($data); } /** * @param int $fscod * * @return int|string|false */ public static function sampleRateCodeLookup($fscod) { static $sampleRateCodeLookup = array( 0 => 48000, 1 => 44100, 2 => 32000, 3 => 'reserved' // If the reserved code is indicated, the decoder should not attempt to decode audio and should mute. ); return (isset($sampleRateCodeLookup[$fscod]) ? $sampleRateCodeLookup[$fscod] : false); } /** * @param int $fscod2 * * @return int|string|false */ public static function sampleRateCodeLookup2($fscod2) { static $sampleRateCodeLookup2 = array( 0 => 24000, 1 => 22050, 2 => 16000, 3 => 'reserved' // If the reserved code is indicated, the decoder should not attempt to decode audio and should mute. ); return (isset($sampleRateCodeLookup2[$fscod2]) ? $sampleRateCodeLookup2[$fscod2] : false); } /** * @param int $bsmod * @param int $acmod * * @return string|false */ public static function serviceTypeLookup($bsmod, $acmod) { static $serviceTypeLookup = array(); if (empty($serviceTypeLookup)) { for ($i = 0; $i <= 7; $i++) { $serviceTypeLookup[0][$i] = 'main audio service: complete main (CM)'; $serviceTypeLookup[1][$i] = 'main audio service: music and effects (ME)'; $serviceTypeLookup[2][$i] = 'associated service: visually impaired (VI)'; $serviceTypeLookup[3][$i] = 'associated service: hearing impaired (HI)'; $serviceTypeLookup[4][$i] = 'associated service: dialogue (D)'; $serviceTypeLookup[5][$i] = 'associated service: commentary (C)'; $serviceTypeLookup[6][$i] = 'associated service: emergency (E)'; } $serviceTypeLookup[7][1] = 'associated service: voice over (VO)'; for ($i = 2; $i <= 7; $i++) { $serviceTypeLookup[7][$i] = 'main audio service: karaoke'; } } return (isset($serviceTypeLookup[$bsmod][$acmod]) ? $serviceTypeLookup[$bsmod][$acmod] : false); } /** * @param int $acmod * * @return array|false */ public static function audioCodingModeLookup($acmod) { // array(channel configuration, # channels (not incl LFE), channel order) static $audioCodingModeLookup = array ( 0 => array('channel_config'=>'1+1', 'num_channels'=>2, 'channel_order'=>'Ch1,Ch2'), 1 => array('channel_config'=>'1/0', 'num_channels'=>1, 'channel_order'=>'C'), 2 => array('channel_config'=>'2/0', 'num_channels'=>2, 'channel_order'=>'L,R'), 3 => array('channel_config'=>'3/0', 'num_channels'=>3, 'channel_order'=>'L,C,R'), 4 => array('channel_config'=>'2/1', 'num_channels'=>3, 'channel_order'=>'L,R,S'), 5 => array('channel_config'=>'3/1', 'num_channels'=>4, 'channel_order'=>'L,C,R,S'), 6 => array('channel_config'=>'2/2', 'num_channels'=>4, 'channel_order'=>'L,R,SL,SR'), 7 => array('channel_config'=>'3/2', 'num_channels'=>5, 'channel_order'=>'L,C,R,SL,SR'), ); return (isset($audioCodingModeLookup[$acmod]) ? $audioCodingModeLookup[$acmod] : false); } /** * @param int $cmixlev * * @return int|float|string|false */ public static function centerMixLevelLookup($cmixlev) { static $centerMixLevelLookup; if (empty($centerMixLevelLookup)) { $centerMixLevelLookup = array( 0 => pow(2, -3.0 / 6), // 0.707 (-3.0 dB) 1 => pow(2, -4.5 / 6), // 0.595 (-4.5 dB) 2 => pow(2, -6.0 / 6), // 0.500 (-6.0 dB) 3 => 'reserved' ); } return (isset($centerMixLevelLookup[$cmixlev]) ? $centerMixLevelLookup[$cmixlev] : false); } /** * @param int $surmixlev * * @return int|float|string|false */ public static function surroundMixLevelLookup($surmixlev) { static $surroundMixLevelLookup; if (empty($surroundMixLevelLookup)) { $surroundMixLevelLookup = array( 0 => pow(2, -3.0 / 6), 1 => pow(2, -6.0 / 6), 2 => 0, 3 => 'reserved' ); } return (isset($surroundMixLevelLookup[$surmixlev]) ? $surroundMixLevelLookup[$surmixlev] : false); } /** * @param int $dsurmod * * @return string|false */ public static function dolbySurroundModeLookup($dsurmod) { static $dolbySurroundModeLookup = array( 0 => 'not indicated', 1 => 'Not Dolby Surround encoded', 2 => 'Dolby Surround encoded', 3 => 'reserved' ); return (isset($dolbySurroundModeLookup[$dsurmod]) ? $dolbySurroundModeLookup[$dsurmod] : false); } /** * @param int $acmod * @param bool $lfeon * * @return array */ public static function channelsEnabledLookup($acmod, $lfeon) { $lookup = array( 'ch1'=>($acmod == 0), 'ch2'=>($acmod == 0), 'left'=>($acmod > 1), 'right'=>($acmod > 1), 'center'=>(bool) ($acmod & 0x01), 'surround_mono'=>false, 'surround_left'=>false, 'surround_right'=>false, 'lfe'=>$lfeon); switch ($acmod) { case 4: case 5: $lookup['surround_mono'] = true; break; case 6: case 7: $lookup['surround_left'] = true; $lookup['surround_right'] = true; break; } return $lookup; } /** * @param int $compre * * @return float|int */ public static function heavyCompression($compre) { // The first four bits indicate gain changes in 6.02dB increments which can be // implemented with an arithmetic shift operation. The following four bits // indicate linear gain changes, and require a 5-bit multiply. // We will represent the two 4-bit fields of compr as follows: // X0 X1 X2 X3 . Y4 Y5 Y6 Y7 // The meaning of the X values is most simply described by considering X to represent a 4-bit // signed integer with values from -8 to +7. The gain indicated by X is then (X + 1) * 6.02 dB. The // following table shows this in detail. // Meaning of 4 msb of compr // 7 +48.16 dB // 6 +42.14 dB // 5 +36.12 dB // 4 +30.10 dB // 3 +24.08 dB // 2 +18.06 dB // 1 +12.04 dB // 0 +6.02 dB // -1 0 dB // -2 -6.02 dB // -3 -12.04 dB // -4 -18.06 dB // -5 -24.08 dB // -6 -30.10 dB // -7 -36.12 dB // -8 -42.14 dB $fourbit = str_pad(decbin(($compre & 0xF0) >> 4), 4, '0', STR_PAD_LEFT); if ($fourbit[0] == '1') { $log_gain = -8 + bindec(substr($fourbit, 1)); } else { $log_gain = bindec(substr($fourbit, 1)); } $log_gain = ($log_gain + 1) * getid3_lib::RGADamplitude2dB(2); // The value of Y is a linear representation of a gain change of up to -6 dB. Y is considered to // be an unsigned fractional integer, with a leading value of 1, or: 0.1 Y4 Y5 Y6 Y7 (base 2). Y can // represent values between 0.111112 (or 31/32) and 0.100002 (or 1/2). Thus, Y can represent gain // changes from -0.28 dB to -6.02 dB. $lin_gain = (16 + ($compre & 0x0F)) / 32; // The combination of X and Y values allows compr to indicate gain changes from // 48.16 - 0.28 = +47.89 dB, to // -42.14 - 6.02 = -48.16 dB. return $log_gain - $lin_gain; } /** * @param int $roomtyp * * @return string|false */ public static function roomTypeLookup($roomtyp) { static $roomTypeLookup = array( 0 => 'not indicated', 1 => 'large room, X curve monitor', 2 => 'small room, flat monitor', 3 => 'reserved' ); return (isset($roomTypeLookup[$roomtyp]) ? $roomTypeLookup[$roomtyp] : false); } /** * @param int $frmsizecod * @param int $fscod * * @return int|false */ public static function frameSizeLookup($frmsizecod, $fscod) { // LSB is whether padding is used or not $padding = (bool) ($frmsizecod & 0x01); $framesizeid = ($frmsizecod & 0x3E) >> 1; static $frameSizeLookup = array(); if (empty($frameSizeLookup)) { $frameSizeLookup = array ( 0 => array( 128, 138, 192), // 32 kbps 1 => array( 160, 174, 240), // 40 kbps 2 => array( 192, 208, 288), // 48 kbps 3 => array( 224, 242, 336), // 56 kbps 4 => array( 256, 278, 384), // 64 kbps 5 => array( 320, 348, 480), // 80 kbps 6 => array( 384, 416, 576), // 96 kbps 7 => array( 448, 486, 672), // 112 kbps 8 => array( 512, 556, 768), // 128 kbps 9 => array( 640, 696, 960), // 160 kbps 10 => array( 768, 834, 1152), // 192 kbps 11 => array( 896, 974, 1344), // 224 kbps 12 => array(1024, 1114, 1536), // 256 kbps 13 => array(1280, 1392, 1920), // 320 kbps 14 => array(1536, 1670, 2304), // 384 kbps 15 => array(1792, 1950, 2688), // 448 kbps 16 => array(2048, 2228, 3072), // 512 kbps 17 => array(2304, 2506, 3456), // 576 kbps 18 => array(2560, 2786, 3840) // 640 kbps ); } $paddingBytes = 0; if (($fscod == 1) && $padding) { // frame lengths are padded by 1 word (16 bits) at 44100 // (fscode==1) means 44100Hz (see sampleRateCodeLookup) $paddingBytes = 2; } return (isset($frameSizeLookup[$framesizeid][$fscod]) ? $frameSizeLookup[$framesizeid][$fscod] + $paddingBytes : false); } /** * @param int $frmsizecod * * @return int|false */ public static function bitrateLookup($frmsizecod) { // LSB is whether padding is used or not $padding = (bool) ($frmsizecod & 0x01); $framesizeid = ($frmsizecod & 0x3E) >> 1; static $bitrateLookup = array( 0 => 32000, 1 => 40000, 2 => 48000, 3 => 56000, 4 => 64000, 5 => 80000, 6 => 96000, 7 => 112000, 8 => 128000, 9 => 160000, 10 => 192000, 11 => 224000, 12 => 256000, 13 => 320000, 14 => 384000, 15 => 448000, 16 => 512000, 17 => 576000, 18 => 640000, ); return (isset($bitrateLookup[$framesizeid]) ? $bitrateLookup[$framesizeid] : false); } /** * @param int $numblkscod * * @return int|false */ public static function blocksPerSyncFrame($numblkscod) { static $blocksPerSyncFrameLookup = array( 0 => 1, 1 => 2, 2 => 3, 3 => 6, ); return (isset($blocksPerSyncFrameLookup[$numblkscod]) ? $blocksPerSyncFrameLookup[$numblkscod] : false); } } PK!vgetid3.lib.phpnuȯ // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // // // getid3.lib.php - part of getID3() // // see readme.txt for more details // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_LIBXML_OPTIONS') && defined('LIBXML_VERSION')) { if (LIBXML_VERSION >= 20621) { define('GETID3_LIBXML_OPTIONS', LIBXML_NONET | LIBXML_NOWARNING | LIBXML_COMPACT); } else { define('GETID3_LIBXML_OPTIONS', LIBXML_NONET | LIBXML_NOWARNING); } } class getid3_lib { /** * @param string $string * @param bool $hex * @param bool $spaces * @param string|bool $htmlencoding * * @return string */ public static function PrintHexBytes($string, $hex=true, $spaces=true, $htmlencoding='UTF-8') { $returnstring = ''; for ($i = 0; $i < strlen($string); $i++) { if ($hex) { $returnstring .= str_pad(dechex(ord($string[$i])), 2, '0', STR_PAD_LEFT); } else { $returnstring .= ' '.(preg_match("#[\x20-\x7E]#", $string[$i]) ? $string[$i] : '¤'); } if ($spaces) { $returnstring .= ' '; } } if (!empty($htmlencoding)) { if ($htmlencoding === true) { $htmlencoding = 'UTF-8'; // prior to getID3 v1.9.0 the function's 4th parameter was boolean } $returnstring = htmlentities($returnstring, ENT_QUOTES, $htmlencoding); } return $returnstring; } /** * Truncates a floating-point number at the decimal point. * * @param float $floatnumber * * @return float|int returns int (if possible, otherwise float) */ public static function trunc($floatnumber) { if ($floatnumber >= 1) { $truncatednumber = floor($floatnumber); } elseif ($floatnumber <= -1) { $truncatednumber = ceil($floatnumber); } else { $truncatednumber = 0; } if (self::intValueSupported($truncatednumber)) { $truncatednumber = (int) $truncatednumber; } return $truncatednumber; } /** * @param int|null $variable * @param-out int $variable * @param int $increment * * @return bool */ public static function safe_inc(&$variable, $increment=1) { if (isset($variable)) { $variable += $increment; } else { $variable = $increment; } return true; } /** * @param int|float $floatnum * * @return int|float */ public static function CastAsInt($floatnum) { // convert to float if not already $floatnum = (float) $floatnum; // convert a float to type int, only if possible if (self::trunc($floatnum) == $floatnum) { // it's not floating point if (self::intValueSupported($floatnum)) { // it's within int range $floatnum = (int) $floatnum; } } return $floatnum; } /** * @param int $num * * @return bool */ public static function intValueSupported($num) { // check if integers are 64-bit static $hasINT64 = null; if ($hasINT64 === null) { // 10x faster than is_null() /** @var int|float|object $bigInt */ $bigInt = pow(2, 31); $hasINT64 = is_int($bigInt); // 32-bit int are limited to (2^31)-1 if (!$hasINT64 && !defined('PHP_INT_MIN')) { define('PHP_INT_MIN', ~PHP_INT_MAX); } } // if integers are 64-bit - no other check required if ($hasINT64 || (($num <= PHP_INT_MAX) && ($num >= PHP_INT_MIN))) { return true; } return false; } /** * Perform a division, guarding against division by zero * * @param float|int $numerator * @param float|int $denominator * @param float|int $fallback * @return float|int */ public static function SafeDiv($numerator, $denominator, $fallback = 0) { return $denominator ? $numerator / $denominator : $fallback; } /** * @param string $fraction * * @return float */ public static function DecimalizeFraction($fraction) { list($numerator, $denominator) = explode('/', $fraction); return (int) $numerator / ($denominator ? $denominator : 1); } /** * @param string $binarynumerator * * @return float */ public static function DecimalBinary2Float($binarynumerator) { $numerator = self::Bin2Dec($binarynumerator); $denominator = self::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator))); return ($numerator / $denominator); } /** * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html * * @param string $binarypointnumber * @param int $maxbits * * @return array */ public static function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) { if (strpos($binarypointnumber, '.') === false) { $binarypointnumber = '0.'.$binarypointnumber; } elseif ($binarypointnumber[0] == '.') { $binarypointnumber = '0'.$binarypointnumber; } $exponent = 0; while (($binarypointnumber[0] != '1') || (substr($binarypointnumber, 1, 1) != '.')) { if (substr($binarypointnumber, 1, 1) == '.') { $exponent--; $binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3); } else { $pointpos = strpos($binarypointnumber, '.'); $exponent += ($pointpos - 1); $binarypointnumber = str_replace('.', '', $binarypointnumber); $binarypointnumber = $binarypointnumber[0].'.'.substr($binarypointnumber, 1); } } $binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT); return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent); } /** * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html * * @param float $floatvalue * * @return string */ public static function Float2BinaryDecimal($floatvalue) { $maxbits = 128; // to how many bits of precision should the calculations be taken? $intpart = self::trunc($floatvalue); $floatpart = abs($floatvalue - $intpart); $pointbitstring = ''; while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) { $floatpart *= 2; $pointbitstring .= (string) self::trunc($floatpart); $floatpart -= self::trunc($floatpart); } $binarypointnumber = decbin($intpart).'.'.$pointbitstring; return $binarypointnumber; } /** * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html * * @param float $floatvalue * @param int $bits * * @return string|false */ public static function Float2String($floatvalue, $bits) { $exponentbits = 0; $fractionbits = 0; switch ($bits) { case 32: $exponentbits = 8; $fractionbits = 23; break; case 64: $exponentbits = 11; $fractionbits = 52; break; default: return false; } if ($floatvalue >= 0) { $signbit = '0'; } else { $signbit = '1'; } $normalizedbinary = self::NormalizeBinaryPoint(self::Float2BinaryDecimal($floatvalue), $fractionbits); $biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent $exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT); $fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT); return self::BigEndian2String(self::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false); } /** * @param string $byteword * * @return float|false */ public static function LittleEndian2Float($byteword) { return self::BigEndian2Float(strrev($byteword)); } /** * ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic * * @link https://web.archive.org/web/20120325162206/http://www.psc.edu/general/software/packages/ieee/ieee.php * @link http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html * * @param string $byteword * * @return float|false */ public static function BigEndian2Float($byteword) { $bitword = self::BigEndian2Bin($byteword); if (!$bitword) { return 0; } $signbit = $bitword[0]; $floatvalue = 0; $exponentbits = 0; $fractionbits = 0; switch (strlen($byteword) * 8) { case 32: $exponentbits = 8; $fractionbits = 23; break; case 64: $exponentbits = 11; $fractionbits = 52; break; case 80: // 80-bit Apple SANE format // http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ $exponentstring = substr($bitword, 1, 15); $isnormalized = intval($bitword[16]); $fractionstring = substr($bitword, 17, 63); $exponent = pow(2, self::Bin2Dec($exponentstring) - 16383); $fraction = $isnormalized + self::DecimalBinary2Float($fractionstring); $floatvalue = $exponent * $fraction; if ($signbit == '1') { $floatvalue *= -1; } return $floatvalue; default: return false; } $exponentstring = substr($bitword, 1, $exponentbits); $fractionstring = substr($bitword, $exponentbits + 1, $fractionbits); $exponent = self::Bin2Dec($exponentstring); $fraction = self::Bin2Dec($fractionstring); if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) { // Not a Number $floatvalue = NAN; } elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) { if ($signbit == '1') { $floatvalue = -INF; } else { $floatvalue = INF; } } elseif (($exponent == 0) && ($fraction == 0)) { if ($signbit == '1') { $floatvalue = -0.0; } else { $floatvalue = 0.0; } } elseif (($exponent == 0) && ($fraction != 0)) { // These are 'unnormalized' values $floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * self::DecimalBinary2Float($fractionstring); if ($signbit == '1') { $floatvalue *= -1; } } elseif ($exponent != 0) { $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + self::DecimalBinary2Float($fractionstring)); if ($signbit == '1') { $floatvalue *= -1; } } return (float) $floatvalue; } /** * @param string $byteword * @param bool $synchsafe * @param bool $signed * * @return int|float|false * @throws Exception */ public static function BigEndian2Int($byteword, $synchsafe=false, $signed=false) { $intvalue = 0; $bytewordlen = strlen($byteword); if ($bytewordlen == 0) { return false; } for ($i = 0; $i < $bytewordlen; $i++) { if ($synchsafe) { // disregard MSB, effectively 7-bit bytes //$intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7); // faster, but runs into problems past 2^31 on 32-bit systems $intvalue += (ord($byteword[$i]) & 0x7F) * pow(2, ($bytewordlen - 1 - $i) * 7); } else { $intvalue += ord($byteword[$i]) * pow(256, ($bytewordlen - 1 - $i)); } } if ($signed && !$synchsafe) { // synchsafe ints are not allowed to be signed if ($bytewordlen <= PHP_INT_SIZE) { $signMaskBit = 0x80 << (8 * ($bytewordlen - 1)); if ($intvalue & $signMaskBit) { $intvalue = 0 - ($intvalue & ($signMaskBit - 1)); } } else { throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits ('.strlen($byteword).') in self::BigEndian2Int()'); } } return self::CastAsInt($intvalue); } /** * @param string $byteword * @param bool $signed * * @return int|float|false */ public static function LittleEndian2Int($byteword, $signed=false) { return self::BigEndian2Int(strrev($byteword), false, $signed); } /** * @param string $byteword * * @return string */ public static function LittleEndian2Bin($byteword) { return self::BigEndian2Bin(strrev($byteword)); } /** * @param string $byteword * * @return string */ public static function BigEndian2Bin($byteword) { $binvalue = ''; $bytewordlen = strlen($byteword); for ($i = 0; $i < $bytewordlen; $i++) { $binvalue .= str_pad(decbin(ord($byteword[$i])), 8, '0', STR_PAD_LEFT); } return $binvalue; } /** * @param int $number * @param int $minbytes * @param bool $synchsafe * @param bool $signed * * @return string * @throws Exception */ public static function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) { if ($number < 0) { throw new Exception('ERROR: self::BigEndian2String() does not support negative numbers'); } $maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF); $intstring = ''; if ($signed) { if ($minbytes > PHP_INT_SIZE) { throw new Exception('ERROR: Cannot have signed integers larger than '.(8 * PHP_INT_SIZE).'-bits in self::BigEndian2String()'); } $number = $number & (0x80 << (8 * ($minbytes - 1))); } while ($number != 0) { $quotient = ($number / ($maskbyte + 1)); $intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring; $number = floor($quotient); } return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT); } /** * @param int|string $number * * @return string */ public static function Dec2Bin($number) { if (!is_numeric($number)) { // https://github.com/JamesHeinrich/getID3/issues/299 trigger_error('TypeError: Dec2Bin(): Argument #1 ($number) must be numeric, '.gettype($number).' given', E_USER_WARNING); return ''; } $bytes = array(); while ($number >= 256) { $bytes[] = (int) (($number / 256) - (floor($number / 256))) * 256; $number = floor($number / 256); } $bytes[] = (int) $number; $binstring = ''; foreach ($bytes as $i => $byte) { $binstring = (($i == count($bytes) - 1) ? decbin($byte) : str_pad(decbin($byte), 8, '0', STR_PAD_LEFT)).$binstring; } return $binstring; } /** * @param string $binstring * @param bool $signed * * @return int|float */ public static function Bin2Dec($binstring, $signed=false) { $signmult = 1; if ($signed) { if ($binstring[0] == '1') { $signmult = -1; } $binstring = substr($binstring, 1); } $decvalue = 0; for ($i = 0; $i < strlen($binstring); $i++) { $decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i); } return self::CastAsInt($decvalue * $signmult); } /** * @param string $binstring * * @return string */ public static function Bin2String($binstring) { // return 'hi' for input of '0110100001101001' $string = ''; $binstringreversed = strrev($binstring); for ($i = 0; $i < strlen($binstringreversed); $i += 8) { $string = chr(self::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string; } return $string; } /** * @param int $number * @param int $minbytes * @param bool $synchsafe * * @return string */ public static function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { $intstring = ''; while ($number > 0) { if ($synchsafe) { $intstring = $intstring.chr($number & 127); $number >>= 7; } else { $intstring = $intstring.chr($number & 255); $number >>= 8; } } return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); } /** * @param mixed $array1 * @param mixed $array2 * * @return array|false */ public static function array_merge_clobber($array1, $array2) { // written by kcØhireability*com // taken from http://www.php.net/manual/en/function.array-merge-recursive.php if (!is_array($array1) || !is_array($array2)) { return false; } $newarray = $array1; foreach ($array2 as $key => $val) { if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { $newarray[$key] = self::array_merge_clobber($newarray[$key], $val); } else { $newarray[$key] = $val; } } return $newarray; } /** * @param mixed $array1 * @param mixed $array2 * * @return array|false */ public static function array_merge_noclobber($array1, $array2) { if (!is_array($array1) || !is_array($array2)) { return false; } $newarray = $array1; foreach ($array2 as $key => $val) { if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { $newarray[$key] = self::array_merge_noclobber($newarray[$key], $val); } elseif (!isset($newarray[$key])) { $newarray[$key] = $val; } } return $newarray; } /** * @param mixed $array1 * @param mixed $array2 * * @return array|false|null */ public static function flipped_array_merge_noclobber($array1, $array2) { if (!is_array($array1) || !is_array($array2)) { return false; } # naturally, this only works non-recursively $newarray = array_flip($array1); foreach (array_flip($array2) as $key => $val) { if (!isset($newarray[$key])) { $newarray[$key] = count($newarray); } } return array_flip($newarray); } /** * @param array $theArray * * @return bool */ public static function ksort_recursive(&$theArray) { ksort($theArray); foreach ($theArray as $key => $value) { if (is_array($value)) { self::ksort_recursive($theArray[$key]); } } return true; } /** * @param string $filename * @param int $numextensions * * @return string */ public static function fileextension($filename, $numextensions=1) { if (strstr($filename, '.')) { $reversedfilename = strrev($filename); $offset = 0; for ($i = 0; $i < $numextensions; $i++) { $offset = strpos($reversedfilename, '.', $offset + 1); if ($offset === false) { return ''; } } return strrev(substr($reversedfilename, 0, $offset)); } return ''; } /** * @param int $seconds * * @return string */ public static function PlaytimeString($seconds) { $sign = (($seconds < 0) ? '-' : ''); $seconds = round(abs($seconds)); $H = (int) floor( $seconds / 3600); $M = (int) floor(($seconds - (3600 * $H) ) / 60); $S = (int) round( $seconds - (3600 * $H) - (60 * $M) ); return $sign.($H ? $H.':' : '').($H ? str_pad($M, 2, '0', STR_PAD_LEFT) : intval($M)).':'.str_pad($S, 2, 0, STR_PAD_LEFT); } /** * @param int $macdate * * @return int|float */ public static function DateMac2Unix($macdate) { // Macintosh timestamp: seconds since 00:00h January 1, 1904 // UNIX timestamp: seconds since 00:00h January 1, 1970 return self::CastAsInt($macdate - 2082844800); } /** * @param string $rawdata * * @return float */ public static function FixedPoint8_8($rawdata) { return self::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (self::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8)); } /** * @param string $rawdata * * @return float */ public static function FixedPoint16_16($rawdata) { return self::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (self::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16)); } /** * @param string $rawdata * * @return float */ public static function FixedPoint2_30($rawdata) { $binarystring = self::BigEndian2Bin($rawdata); return self::Bin2Dec(substr($binarystring, 0, 2)) + (float) (self::Bin2Dec(substr($binarystring, 2, 30)) / pow(2, 30)); } /** * @param string $ArrayPath * @param string $Separator * @param mixed $Value * * @return array */ public static function CreateDeepArray($ArrayPath, $Separator, $Value) { // assigns $Value to a nested array path: // $foo = self::CreateDeepArray('/path/to/my', '/', 'file.txt') // is the same as: // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt')))); // or // $foo['path']['to']['my'] = 'file.txt'; $ArrayPath = ltrim($ArrayPath, $Separator); $ReturnedArray = array(); if (($pos = strpos($ArrayPath, $Separator)) !== false) { $ReturnedArray[substr($ArrayPath, 0, $pos)] = self::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value); } else { $ReturnedArray[$ArrayPath] = $Value; } return $ReturnedArray; } /** * @param array $arraydata * @param bool $returnkey * * @return int|false */ public static function array_max($arraydata, $returnkey=false) { $maxvalue = false; $maxkey = false; foreach ($arraydata as $key => $value) { if (!is_array($value)) { if (($maxvalue === false) || ($value > $maxvalue)) { $maxvalue = $value; $maxkey = $key; } } } return ($returnkey ? $maxkey : $maxvalue); } /** * @param array $arraydata * @param bool $returnkey * * @return int|false */ public static function array_min($arraydata, $returnkey=false) { $minvalue = false; $minkey = false; foreach ($arraydata as $key => $value) { if (!is_array($value)) { if (($minvalue === false) || ($value < $minvalue)) { $minvalue = $value; $minkey = $key; } } } return ($returnkey ? $minkey : $minvalue); } /** * @param string $XMLstring * * @return array|false */ public static function XML2array($XMLstring) { if (function_exists('simplexml_load_string')) { if (PHP_VERSION_ID < 80000) { if (function_exists('libxml_disable_entity_loader')) { // http://websec.io/2012/08/27/Preventing-XEE-in-PHP.html // https://core.trac.wordpress.org/changeset/29378 // This function has been deprecated in PHP 8.0 because in libxml 2.9.0, external entity loading is // disabled by default, but is still needed when LIBXML_NOENT is used. $loader = @libxml_disable_entity_loader(true); $XMLobject = simplexml_load_string($XMLstring, 'SimpleXMLElement', GETID3_LIBXML_OPTIONS); $return = self::SimpleXMLelement2array($XMLobject); @libxml_disable_entity_loader($loader); return $return; } } else { $allow = false; if (defined('LIBXML_VERSION') && (LIBXML_VERSION >= 20900)) { // https://www.php.net/manual/en/function.libxml-disable-entity-loader.php // "as of libxml 2.9.0 entity substitution is disabled by default, so there is no need to disable the loading // of external entities, unless there is the need to resolve internal entity references with LIBXML_NOENT." $allow = true; } elseif (function_exists('libxml_set_external_entity_loader')) { libxml_set_external_entity_loader(function () { return null; }); // https://www.zend.com/blog/cve-2023-3823 $allow = true; } if ($allow) { $XMLobject = simplexml_load_string($XMLstring, 'SimpleXMLElement', GETID3_LIBXML_OPTIONS); $return = self::SimpleXMLelement2array($XMLobject); return $return; } } } return false; } /** * @param SimpleXMLElement|array|mixed $XMLobject * * @return mixed */ public static function SimpleXMLelement2array($XMLobject) { if (!is_object($XMLobject) && !is_array($XMLobject)) { return $XMLobject; } $XMLarray = $XMLobject instanceof SimpleXMLElement ? get_object_vars($XMLobject) : $XMLobject; foreach ($XMLarray as $key => $value) { $XMLarray[$key] = self::SimpleXMLelement2array($value); } return $XMLarray; } /** * Returns checksum for a file from starting position to absolute end position. * * @param string $file * @param int $offset * @param int $end * @param string $algorithm * * @return string|false * @throws getid3_exception */ public static function hash_data($file, $offset, $end, $algorithm) { if (!self::intValueSupported($end)) { return false; } if (!in_array($algorithm, array('md5', 'sha1'))) { throw new getid3_exception('Invalid algorithm ('.$algorithm.') in self::hash_data()'); } $size = $end - $offset; $fp = fopen($file, 'rb'); fseek($fp, $offset); $ctx = hash_init($algorithm); while ($size > 0) { $buffer = fread($fp, min($size, getID3::FREAD_BUFFER_SIZE)); hash_update($ctx, $buffer); $size -= getID3::FREAD_BUFFER_SIZE; } $hash = hash_final($ctx); fclose($fp); return $hash; } /** * @param string $filename_source * @param string $filename_dest * @param int $offset * @param int $length * * @return bool * @throws Exception * * @deprecated Unused, may be removed in future versions of getID3 */ public static function CopyFileParts($filename_source, $filename_dest, $offset, $length) { if (!self::intValueSupported($offset + $length)) { throw new Exception('cannot copy file portion, it extends beyond the '.round(PHP_INT_MAX / 1073741824).'GB limit'); } if (is_readable($filename_source) && is_file($filename_source) && ($fp_src = fopen($filename_source, 'rb'))) { if (($fp_dest = fopen($filename_dest, 'wb'))) { if (fseek($fp_src, $offset) == 0) { $byteslefttowrite = $length; while (($byteslefttowrite > 0) && ($buffer = fread($fp_src, min($byteslefttowrite, getID3::FREAD_BUFFER_SIZE)))) { $byteswritten = fwrite($fp_dest, $buffer, $byteslefttowrite); $byteslefttowrite -= $byteswritten; } fclose($fp_dest); return true; } else { fclose($fp_src); throw new Exception('failed to seek to offset '.$offset.' in '.$filename_source); } } else { throw new Exception('failed to create file for writing '.$filename_dest); } } else { throw new Exception('failed to open file for reading '.$filename_source); } } /** * @param int $charval * * @return string */ public static function iconv_fallback_int_utf8($charval) { if ($charval < 128) { // 0bbbbbbb $newcharstring = chr($charval); } elseif ($charval < 2048) { // 110bbbbb 10bbbbbb $newcharstring = chr(($charval >> 6) | 0xC0); $newcharstring .= chr(($charval & 0x3F) | 0x80); } elseif ($charval < 65536) { // 1110bbbb 10bbbbbb 10bbbbbb $newcharstring = chr(($charval >> 12) | 0xE0); $newcharstring .= chr(($charval >> 6) | 0xC0); $newcharstring .= chr(($charval & 0x3F) | 0x80); } else { // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb $newcharstring = chr(($charval >> 18) | 0xF0); $newcharstring .= chr(($charval >> 12) | 0xC0); $newcharstring .= chr(($charval >> 6) | 0xC0); $newcharstring .= chr(($charval & 0x3F) | 0x80); } return $newcharstring; } /** * ISO-8859-1 => UTF-8 * * @param string $string * @param bool $bom * * @return string */ public static function iconv_fallback_iso88591_utf8($string, $bom=false) { $newcharstring = ''; if ($bom) { $newcharstring .= "\xEF\xBB\xBF"; } for ($i = 0; $i < strlen($string); $i++) { $charval = ord($string[$i]); $newcharstring .= self::iconv_fallback_int_utf8($charval); } return $newcharstring; } /** * ISO-8859-1 => UTF-16BE * * @param string $string * @param bool $bom * * @return string */ public static function iconv_fallback_iso88591_utf16be($string, $bom=false) { $newcharstring = ''; if ($bom) { $newcharstring .= "\xFE\xFF"; } for ($i = 0; $i < strlen($string); $i++) { $newcharstring .= "\x00".$string[$i]; } return $newcharstring; } /** * ISO-8859-1 => UTF-16LE * * @param string $string * @param bool $bom * * @return string */ public static function iconv_fallback_iso88591_utf16le($string, $bom=false) { $newcharstring = ''; if ($bom) { $newcharstring .= "\xFF\xFE"; } for ($i = 0; $i < strlen($string); $i++) { $newcharstring .= $string[$i]."\x00"; } return $newcharstring; } /** * ISO-8859-1 => UTF-16LE (BOM) * * @param string $string * * @return string */ public static function iconv_fallback_iso88591_utf16($string) { return self::iconv_fallback_iso88591_utf16le($string, true); } /** * UTF-8 => ISO-8859-1 * * @param string $string * * @return string */ public static function iconv_fallback_utf8_iso88591($string) { $newcharstring = ''; $offset = 0; $stringlength = strlen($string); while ($offset < $stringlength) { if ((ord($string[$offset]) | 0x07) == 0xF7) { // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x07) << 18) & ((ord($string[($offset + 1)]) & 0x3F) << 12) & ((ord($string[($offset + 2)]) & 0x3F) << 6) & (ord($string[($offset + 3)]) & 0x3F); $offset += 4; } elseif ((ord($string[$offset]) | 0x0F) == 0xEF) { // 1110bbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x0F) << 12) & ((ord($string[($offset + 1)]) & 0x3F) << 6) & (ord($string[($offset + 2)]) & 0x3F); $offset += 3; } elseif ((ord($string[$offset]) | 0x1F) == 0xDF) { // 110bbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x1F) << 6) & (ord($string[($offset + 1)]) & 0x3F); $offset += 2; } elseif ((ord($string[$offset]) | 0x7F) == 0x7F) { // 0bbbbbbb $charval = ord($string[$offset]); $offset += 1; } else { // error? throw some kind of warning here? $charval = false; $offset += 1; } if ($charval !== false) { $newcharstring .= (($charval < 256) ? chr($charval) : '?'); } } return $newcharstring; } /** * UTF-8 => UTF-16BE * * @param string $string * @param bool $bom * * @return string */ public static function iconv_fallback_utf8_utf16be($string, $bom=false) { $newcharstring = ''; if ($bom) { $newcharstring .= "\xFE\xFF"; } $offset = 0; $stringlength = strlen($string); while ($offset < $stringlength) { if ((ord($string[$offset]) | 0x07) == 0xF7) { // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x07) << 18) & ((ord($string[($offset + 1)]) & 0x3F) << 12) & ((ord($string[($offset + 2)]) & 0x3F) << 6) & (ord($string[($offset + 3)]) & 0x3F); $offset += 4; } elseif ((ord($string[$offset]) | 0x0F) == 0xEF) { // 1110bbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x0F) << 12) & ((ord($string[($offset + 1)]) & 0x3F) << 6) & (ord($string[($offset + 2)]) & 0x3F); $offset += 3; } elseif ((ord($string[$offset]) | 0x1F) == 0xDF) { // 110bbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x1F) << 6) & (ord($string[($offset + 1)]) & 0x3F); $offset += 2; } elseif ((ord($string[$offset]) | 0x7F) == 0x7F) { // 0bbbbbbb $charval = ord($string[$offset]); $offset += 1; } else { // error? throw some kind of warning here? $charval = false; $offset += 1; } if ($charval !== false) { $newcharstring .= (($charval < 65536) ? self::BigEndian2String($charval, 2) : "\x00".'?'); } } return $newcharstring; } /** * UTF-8 => UTF-16LE * * @param string $string * @param bool $bom * * @return string */ public static function iconv_fallback_utf8_utf16le($string, $bom=false) { $newcharstring = ''; if ($bom) { $newcharstring .= "\xFF\xFE"; } $offset = 0; $stringlength = strlen($string); while ($offset < $stringlength) { if ((ord($string[$offset]) | 0x07) == 0xF7) { // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x07) << 18) & ((ord($string[($offset + 1)]) & 0x3F) << 12) & ((ord($string[($offset + 2)]) & 0x3F) << 6) & (ord($string[($offset + 3)]) & 0x3F); $offset += 4; } elseif ((ord($string[$offset]) | 0x0F) == 0xEF) { // 1110bbbb 10bbbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x0F) << 12) & ((ord($string[($offset + 1)]) & 0x3F) << 6) & (ord($string[($offset + 2)]) & 0x3F); $offset += 3; } elseif ((ord($string[$offset]) | 0x1F) == 0xDF) { // 110bbbbb 10bbbbbb $charval = ((ord($string[($offset + 0)]) & 0x1F) << 6) & (ord($string[($offset + 1)]) & 0x3F); $offset += 2; } elseif ((ord($string[$offset]) | 0x7F) == 0x7F) { // 0bbbbbbb $charval = ord($string[$offset]); $offset += 1; } else { // error? maybe throw some warning here? $charval = false; $offset += 1; } if ($charval !== false) { $newcharstring .= (($charval < 65536) ? self::LittleEndian2String($charval, 2) : '?'."\x00"); } } return $newcharstring; } /** * UTF-8 => UTF-16LE (BOM) * * @param string $string * * @return string */ public static function iconv_fallback_utf8_utf16($string) { return self::iconv_fallback_utf8_utf16le($string, true); } /** * UTF-16BE => UTF-8 * * @param string $string * * @return string */ public static function iconv_fallback_utf16be_utf8($string) { if (substr($string, 0, 2) == "\xFE\xFF") { // strip BOM $string = substr($string, 2); } $newcharstring = ''; for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::BigEndian2Int(substr($string, $i, 2)); $newcharstring .= self::iconv_fallback_int_utf8($charval); } return $newcharstring; } /** * UTF-16LE => UTF-8 * * @param string $string * * @return string */ public static function iconv_fallback_utf16le_utf8($string) { if (substr($string, 0, 2) == "\xFF\xFE") { // strip BOM $string = substr($string, 2); } $newcharstring = ''; for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::LittleEndian2Int(substr($string, $i, 2)); $newcharstring .= self::iconv_fallback_int_utf8($charval); } return $newcharstring; } /** * UTF-16BE => ISO-8859-1 * * @param string $string * * @return string */ public static function iconv_fallback_utf16be_iso88591($string) { if (substr($string, 0, 2) == "\xFE\xFF") { // strip BOM $string = substr($string, 2); } $newcharstring = ''; for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::BigEndian2Int(substr($string, $i, 2)); $newcharstring .= (($charval < 256) ? chr($charval) : '?'); } return $newcharstring; } /** * UTF-16LE => ISO-8859-1 * * @param string $string * * @return string */ public static function iconv_fallback_utf16le_iso88591($string) { if (substr($string, 0, 2) == "\xFF\xFE") { // strip BOM $string = substr($string, 2); } $newcharstring = ''; for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::LittleEndian2Int(substr($string, $i, 2)); $newcharstring .= (($charval < 256) ? chr($charval) : '?'); } return $newcharstring; } /** * UTF-16 (BOM) => ISO-8859-1 * * @param string $string * * @return string */ public static function iconv_fallback_utf16_iso88591($string) { $bom = substr($string, 0, 2); if ($bom == "\xFE\xFF") { return self::iconv_fallback_utf16be_iso88591(substr($string, 2)); } elseif ($bom == "\xFF\xFE") { return self::iconv_fallback_utf16le_iso88591(substr($string, 2)); } return $string; } /** * UTF-16 (BOM) => UTF-8 * * @param string $string * * @return string */ public static function iconv_fallback_utf16_utf8($string) { $bom = substr($string, 0, 2); if ($bom == "\xFE\xFF") { return self::iconv_fallback_utf16be_utf8(substr($string, 2)); } elseif ($bom == "\xFF\xFE") { return self::iconv_fallback_utf16le_utf8(substr($string, 2)); } return $string; } /** * @param string $in_charset * @param string $out_charset * @param string $string * * @return string * @throws Exception */ public static function iconv_fallback($in_charset, $out_charset, $string) { if ($in_charset == $out_charset) { return $string; } // mb_convert_encoding() available if (function_exists('mb_convert_encoding')) { if ((strtoupper($in_charset) == 'UTF-16') && (substr($string, 0, 2) != "\xFE\xFF") && (substr($string, 0, 2) != "\xFF\xFE")) { // if BOM missing, mb_convert_encoding will mishandle the conversion, assume UTF-16BE and prepend appropriate BOM $string = "\xFF\xFE".$string; } if ((strtoupper($in_charset) == 'UTF-16') && (strtoupper($out_charset) == 'UTF-8')) { if (($string == "\xFF\xFE") || ($string == "\xFE\xFF")) { // if string consists of only BOM, mb_convert_encoding will return the BOM unmodified return ''; } } if ($converted_string = @mb_convert_encoding($string, $out_charset, $in_charset)) { switch ($out_charset) { case 'ISO-8859-1': $converted_string = rtrim($converted_string, "\x00"); break; } return $converted_string; } return $string; // iconv() available } elseif (function_exists('iconv')) { if ($converted_string = @iconv($in_charset, $out_charset.'//TRANSLIT', $string)) { switch ($out_charset) { case 'ISO-8859-1': $converted_string = rtrim($converted_string, "\x00"); break; } return $converted_string; } // iconv() may sometimes fail with "illegal character in input string" error message // and return an empty string, but returning the unconverted string is more useful return $string; } // neither mb_convert_encoding or iconv() is available static $ConversionFunctionList = array(); if (empty($ConversionFunctionList)) { $ConversionFunctionList['ISO-8859-1']['UTF-8'] = 'iconv_fallback_iso88591_utf8'; $ConversionFunctionList['ISO-8859-1']['UTF-16'] = 'iconv_fallback_iso88591_utf16'; $ConversionFunctionList['ISO-8859-1']['UTF-16BE'] = 'iconv_fallback_iso88591_utf16be'; $ConversionFunctionList['ISO-8859-1']['UTF-16LE'] = 'iconv_fallback_iso88591_utf16le'; $ConversionFunctionList['UTF-8']['ISO-8859-1'] = 'iconv_fallback_utf8_iso88591'; $ConversionFunctionList['UTF-8']['UTF-16'] = 'iconv_fallback_utf8_utf16'; $ConversionFunctionList['UTF-8']['UTF-16BE'] = 'iconv_fallback_utf8_utf16be'; $ConversionFunctionList['UTF-8']['UTF-16LE'] = 'iconv_fallback_utf8_utf16le'; $ConversionFunctionList['UTF-16']['ISO-8859-1'] = 'iconv_fallback_utf16_iso88591'; $ConversionFunctionList['UTF-16']['UTF-8'] = 'iconv_fallback_utf16_utf8'; $ConversionFunctionList['UTF-16LE']['ISO-8859-1'] = 'iconv_fallback_utf16le_iso88591'; $ConversionFunctionList['UTF-16LE']['UTF-8'] = 'iconv_fallback_utf16le_utf8'; $ConversionFunctionList['UTF-16BE']['ISO-8859-1'] = 'iconv_fallback_utf16be_iso88591'; $ConversionFunctionList['UTF-16BE']['UTF-8'] = 'iconv_fallback_utf16be_utf8'; } if (isset($ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)])) { $ConversionFunction = $ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)]; return self::$ConversionFunction($string); } throw new Exception('PHP does not has mb_convert_encoding() or iconv() support - cannot convert from '.$in_charset.' to '.$out_charset); } /** * @param mixed $data * @param string $charset * * @return mixed */ public static function recursiveMultiByteCharString2HTML($data, $charset='ISO-8859-1') { if (is_string($data)) { return self::MultiByteCharString2HTML($data, $charset); } elseif (is_array($data)) { $return_data = array(); foreach ($data as $key => $value) { $return_data[$key] = self::recursiveMultiByteCharString2HTML($value, $charset); } return $return_data; } // integer, float, objects, resources, etc return $data; } /** * @param string|int|float $string * @param string $charset * * @return string */ public static function MultiByteCharString2HTML($string, $charset='ISO-8859-1') { $string = (string) $string; // in case trying to pass a numeric (float, int) string, would otherwise return an empty string $HTMLstring = ''; switch (strtolower($charset)) { case '1251': case '1252': case '866': case '932': case '936': case '950': case 'big5': case 'big5-hkscs': case 'cp1251': case 'cp1252': case 'cp866': case 'euc-jp': case 'eucjp': case 'gb2312': case 'ibm866': case 'iso-8859-1': case 'iso-8859-15': case 'iso8859-1': case 'iso8859-15': case 'koi8-r': case 'koi8-ru': case 'koi8r': case 'shift_jis': case 'sjis': case 'win-1251': case 'windows-1251': case 'windows-1252': $HTMLstring = htmlentities($string, ENT_COMPAT, $charset); break; case 'utf-8': $strlen = strlen($string); for ($i = 0; $i < $strlen; $i++) { $char_ord_val = ord($string[$i]); $charval = 0; if ($char_ord_val < 0x80) { $charval = $char_ord_val; } elseif ((($char_ord_val & 0xF0) >> 4) == 0x0F && $i+3 < $strlen) { $charval = (($char_ord_val & 0x07) << 18); $charval += ((ord($string[++$i]) & 0x3F) << 12); $charval += ((ord($string[++$i]) & 0x3F) << 6); $charval += (ord($string[++$i]) & 0x3F); } elseif ((($char_ord_val & 0xE0) >> 5) == 0x07 && $i+2 < $strlen) { $charval = (($char_ord_val & 0x0F) << 12); $charval += ((ord($string[++$i]) & 0x3F) << 6); $charval += (ord($string[++$i]) & 0x3F); } elseif ((($char_ord_val & 0xC0) >> 6) == 0x03 && $i+1 < $strlen) { $charval = (($char_ord_val & 0x1F) << 6); $charval += (ord($string[++$i]) & 0x3F); } if (($charval >= 32) && ($charval <= 127)) { $HTMLstring .= htmlentities(chr($charval)); } else { $HTMLstring .= '&#'.$charval.';'; } } break; case 'utf-16le': for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::LittleEndian2Int(substr($string, $i, 2)); if (($charval >= 32) && ($charval <= 127)) { $HTMLstring .= chr($charval); } else { $HTMLstring .= '&#'.$charval.';'; } } break; case 'utf-16be': for ($i = 0; $i < strlen($string); $i += 2) { $charval = self::BigEndian2Int(substr($string, $i, 2)); if (($charval >= 32) && ($charval <= 127)) { $HTMLstring .= chr($charval); } else { $HTMLstring .= '&#'.$charval.';'; } } break; default: $HTMLstring = 'ERROR: Character set "'.$charset.'" not supported in MultiByteCharString2HTML()'; break; } return $HTMLstring; } /** * @param int $namecode * * @return string */ public static function RGADnameLookup($namecode) { static $RGADname = array(); if (empty($RGADname)) { $RGADname[0] = 'not set'; $RGADname[1] = 'Track Gain Adjustment'; $RGADname[2] = 'Album Gain Adjustment'; } return (isset($RGADname[$namecode]) ? $RGADname[$namecode] : ''); } /** * @param int $originatorcode * * @return string */ public static function RGADoriginatorLookup($originatorcode) { static $RGADoriginator = array(); if (empty($RGADoriginator)) { $RGADoriginator[0] = 'unspecified'; $RGADoriginator[1] = 'pre-set by artist/producer/mastering engineer'; $RGADoriginator[2] = 'set by user'; $RGADoriginator[3] = 'determined automatically'; } return (isset($RGADoriginator[$originatorcode]) ? $RGADoriginator[$originatorcode] : ''); } /** * @param int $rawadjustment * @param int $signbit * * @return float */ public static function RGADadjustmentLookup($rawadjustment, $signbit) { $adjustment = (float) $rawadjustment / 10; if ($signbit == 1) { $adjustment *= -1; } return $adjustment; } /** * @param int $namecode * @param int $originatorcode * @param int $replaygain * * @return string */ public static function RGADgainString($namecode, $originatorcode, $replaygain) { if ($replaygain < 0) { $signbit = '1'; } else { $signbit = '0'; } $storedreplaygain = intval(round($replaygain * 10)); $gainstring = str_pad(decbin($namecode), 3, '0', STR_PAD_LEFT); $gainstring .= str_pad(decbin($originatorcode), 3, '0', STR_PAD_LEFT); $gainstring .= $signbit; $gainstring .= str_pad(decbin($storedreplaygain), 9, '0', STR_PAD_LEFT); return $gainstring; } /** * @param float $amplitude * * @return float */ public static function RGADamplitude2dB($amplitude) { return 20 * log10($amplitude); } /** * @param string $imgData * @param array $imageinfo * * @return array|false */ public static function GetDataImageSize($imgData, &$imageinfo=array()) { if (PHP_VERSION_ID >= 50400) { $GetDataImageSize = @getimagesizefromstring($imgData, $imageinfo); if ($GetDataImageSize === false) { return false; } $GetDataImageSize['height'] = $GetDataImageSize[0]; $GetDataImageSize['width'] = $GetDataImageSize[1]; return $GetDataImageSize; } static $tempdir = ''; if (empty($tempdir)) { if (function_exists('sys_get_temp_dir')) { $tempdir = sys_get_temp_dir(); // https://github.com/JamesHeinrich/getID3/issues/52 } // yes this is ugly, feel free to suggest a better way if (include_once(dirname(__FILE__).'/getid3.php')) { $getid3_temp = new getID3(); if ($getid3_temp_tempdir = $getid3_temp->tempdir) { $tempdir = $getid3_temp_tempdir; } unset($getid3_temp, $getid3_temp_tempdir); } } $GetDataImageSize = false; if ($tempfilename = tempnam($tempdir, 'gI3')) { if (is_writable($tempfilename) && is_file($tempfilename) && ($tmp = fopen($tempfilename, 'wb'))) { fwrite($tmp, $imgData); fclose($tmp); $GetDataImageSize = @getimagesize($tempfilename, $imageinfo); if ($GetDataImageSize === false) { return false; } $GetDataImageSize['height'] = $GetDataImageSize[0]; $GetDataImageSize['width'] = $GetDataImageSize[1]; } unlink($tempfilename); } return $GetDataImageSize; } /** * @param string $mime_type * * @return string */ public static function ImageExtFromMime($mime_type) { // temporary way, works OK for now, but should be reworked in the future return str_replace(array('image/', 'x-', 'jpeg'), array('', '', 'jpg'), $mime_type); } /** * @param array $ThisFileInfo * @param bool $option_tags_html default true (just as in the main getID3 class) * * @return bool */ public static function CopyTagsToComments(&$ThisFileInfo, $option_tags_html=true) { // Copy all entries from ['tags'] into common ['comments'] if (!empty($ThisFileInfo['tags'])) { // Some tag types can only support limited character sets and may contain data in non-standard encoding (usually ID3v1) // and/or poorly-transliterated tag values that are also in tag formats that do support full-range character sets // To make the output more user-friendly, process the potentially-problematic tag formats last to enhance the chance that // the first entries in [comments] are the most correct and the "bad" ones (if any) come later. // https://github.com/JamesHeinrich/getID3/issues/338 $processLastTagTypes = array('id3v1','riff'); foreach ($processLastTagTypes as $processLastTagType) { if (isset($ThisFileInfo['tags'][$processLastTagType])) { // bubble ID3v1 to the end, if present to aid in detecting bad ID3v1 encodings $temp = $ThisFileInfo['tags'][$processLastTagType]; unset($ThisFileInfo['tags'][$processLastTagType]); $ThisFileInfo['tags'][$processLastTagType] = $temp; unset($temp); } } foreach ($ThisFileInfo['tags'] as $tagtype => $tagarray) { foreach ($tagarray as $tagname => $tagdata) { foreach ($tagdata as $key => $value) { if (!empty($value)) { if (empty($ThisFileInfo['comments'][$tagname])) { // fall through and append value } elseif ($tagtype == 'id3v1') { $newvaluelength = strlen(trim($value)); foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { $oldvaluelength = strlen(trim($existingvalue)); if (($newvaluelength <= $oldvaluelength) && (substr($existingvalue, 0, $newvaluelength) == trim($value))) { // new value is identical but shorter-than (or equal-length to) one already in comments - skip break 2; } if (function_exists('mb_convert_encoding')) { if (trim($value) == trim(substr(mb_convert_encoding($existingvalue, $ThisFileInfo['id3v1']['encoding'], $ThisFileInfo['encoding']), 0, 30))) { // value stored in ID3v1 appears to be probably the multibyte value transliterated (badly) into ISO-8859-1 in ID3v1. // As an example, Foobar2000 will do this if you tag a file with Chinese or Arabic or Cyrillic or something that doesn't fit into ISO-8859-1 the ID3v1 will consist of mostly "?" characters, one per multibyte unrepresentable character break 2; } } } } elseif (!is_array($value)) { $newvaluelength = strlen(trim($value)); $newvaluelengthMB = mb_strlen(trim($value)); foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { $oldvaluelength = strlen(trim($existingvalue)); $oldvaluelengthMB = mb_strlen(trim($existingvalue)); if (($newvaluelengthMB == $oldvaluelengthMB) && ($existingvalue == getid3_lib::iconv_fallback('UTF-8', 'ASCII', $value))) { // https://github.com/JamesHeinrich/getID3/issues/338 // check for tags containing extended characters that may have been forced into limited-character storage (e.g. UTF8 values into ASCII) // which will usually display unrepresentable characters as "?" $ThisFileInfo['comments'][$tagname][$existingkey] = trim($value); break; } if ((strlen($existingvalue) > 10) && ($newvaluelength > $oldvaluelength) && (substr(trim($value), 0, strlen($existingvalue)) == $existingvalue)) { $ThisFileInfo['comments'][$tagname][$existingkey] = trim($value); break; } } } if (is_array($value) || empty($ThisFileInfo['comments'][$tagname]) || !in_array(trim($value), $ThisFileInfo['comments'][$tagname])) { $value = (is_string($value) ? trim($value) : $value); if (!is_int($key) && !ctype_digit($key)) { $ThisFileInfo['comments'][$tagname][$key] = $value; } else { if (!isset($ThisFileInfo['comments'][$tagname])) { $ThisFileInfo['comments'][$tagname] = array($value); } else { $ThisFileInfo['comments'][$tagname][] = $value; } } } } } } } // attempt to standardize spelling of returned keys if (!empty($ThisFileInfo['comments'])) { $StandardizeFieldNames = array( 'tracknumber' => 'track_number', 'track' => 'track_number', ); foreach ($StandardizeFieldNames as $badkey => $goodkey) { if (array_key_exists($badkey, $ThisFileInfo['comments']) && !array_key_exists($goodkey, $ThisFileInfo['comments'])) { $ThisFileInfo['comments'][$goodkey] = $ThisFileInfo['comments'][$badkey]; unset($ThisFileInfo['comments'][$badkey]); } } } if ($option_tags_html) { // Copy ['comments'] to ['comments_html'] if (!empty($ThisFileInfo['comments'])) { foreach ($ThisFileInfo['comments'] as $field => $values) { if ($field == 'picture') { // pictures can take up a lot of space, and we don't need multiple copies of them // let there be a single copy in [comments][picture], and not elsewhere continue; } foreach ($values as $index => $value) { if (is_array($value)) { $ThisFileInfo['comments_html'][$field][$index] = $value; } else { $ThisFileInfo['comments_html'][$field][$index] = str_replace('�', '', self::MultiByteCharString2HTML($value, $ThisFileInfo['encoding'])); } } } } } } return true; } /** * @param string $key * @param int $begin * @param int $end * @param string $file * @param string $name * * @return string */ public static function EmbeddedLookup($key, $begin, $end, $file, $name) { // Cached static $cache; if (isset($cache[$file][$name])) { return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : ''); } // Init $keylength = strlen($key); $line_count = $end - $begin - 7; // Open php file $fp = fopen($file, 'r'); // Discard $begin lines for ($i = 0; $i < ($begin + 3); $i++) { fgets($fp, 1024); } // Loop thru line while (0 < $line_count--) { // Read line $line = ltrim(fgets($fp, 1024), "\t "); // METHOD A: only cache the matching key - less memory but slower on next lookup of not-previously-looked-up key //$keycheck = substr($line, 0, $keylength); //if ($key == $keycheck) { // $cache[$file][$name][$keycheck] = substr($line, $keylength + 1); // break; //} // METHOD B: cache all keys in this lookup - more memory but faster on next lookup of not-previously-looked-up key //$cache[$file][$name][substr($line, 0, $keylength)] = trim(substr($line, $keylength + 1)); $explodedLine = explode("\t", $line, 2); $ThisKey = $explodedLine[0]; $ThisValue = (isset($explodedLine[1]) ? $explodedLine[1] : ''); $cache[$file][$name][$ThisKey] = trim($ThisValue); } // Close and return fclose($fp); return (isset($cache[$file][$name][$key]) ? $cache[$file][$name][$key] : ''); } /** * @param string $filename * @param string $sourcefile * @param bool $DieOnFailure * * @return bool * @throws Exception */ public static function IncludeDependency($filename, $sourcefile, $DieOnFailure=false) { global $GETID3_ERRORARRAY; if (file_exists($filename)) { if (include_once($filename)) { return true; } else { $diemessage = basename($sourcefile).' depends on '.$filename.', which has errors'; } } else { $diemessage = basename($sourcefile).' depends on '.$filename.', which is missing'; } if ($DieOnFailure) { throw new Exception($diemessage); } else { $GETID3_ERRORARRAY[] = $diemessage; } return false; } /** * @param string $string * * @return string */ public static function trimNullByte($string) { return trim($string, "\x00"); } /** * @param string $path * * @return float|bool */ public static function getFileSizeSyscall($path) { $commandline = null; $filesize = false; if (GETID3_OS_ISWINDOWS) { if (class_exists('COM')) { // From PHP 5.3.15 and 5.4.5, COM and DOTNET is no longer built into the php core.you have to add COM support in php.ini: $filesystem = new COM('Scripting.FileSystemObject'); $file = $filesystem->GetFile($path); $filesize = $file->Size(); unset($filesystem, $file); } else { $commandline = 'for %I in ('.escapeshellarg($path).') do @echo %~zI'; } } else { $commandline = 'ls -l '.escapeshellarg($path).' | awk \'{print $5}\''; } if (isset($commandline)) { $output = trim(shell_exec($commandline)); if (ctype_digit($output)) { $filesize = (float) $output; } } return $filesize; } /** * @param string $filename * * @return string|false */ public static function truepath($filename) { // 2017-11-08: this could use some improvement, patches welcome if (preg_match('#^(\\\\\\\\|//)[a-z0-9]#i', $filename, $matches)) { // PHP's built-in realpath function does not work on UNC Windows shares $goodpath = array(); foreach (explode('/', str_replace('\\', '/', $filename)) as $part) { if ($part == '.') { continue; } if ($part == '..') { if (count($goodpath)) { array_pop($goodpath); } else { // cannot step above this level, already at top level return false; } } else { $goodpath[] = $part; } } return implode(DIRECTORY_SEPARATOR, $goodpath); } return realpath($filename); } /** * Workaround for Bug #37268 (https://bugs.php.net/bug.php?id=37268) * * @param string $path A path. * @param string $suffix If the name component ends in suffix this will also be cut off. * * @return string */ public static function mb_basename($path, $suffix = '') { $splited = preg_split('#/#', rtrim($path, '/ ')); return substr(basename('X'.$splited[count($splited) - 1], $suffix), 1); } } PK!>offf readme.txtnu[///////////////////////////////////////////////////////////////// /// getID3() by James Heinrich // // available at http://getid3.sourceforge.net // // or https://www.getid3.org // // also https://github.com/JamesHeinrich/getID3 // ///////////////////////////////////////////////////////////////// ***************************************************************** ***************************************************************** getID3() is released under multiple licenses. You may choose from the following licenses, and use getID3 according to the terms of the license most suitable to your project. GNU GPL: https://gnu.org/licenses/gpl.html (v3) https://gnu.org/licenses/old-licenses/gpl-2.0.html (v2) https://gnu.org/licenses/old-licenses/gpl-1.0.html (v1) GNU LGPL: https://gnu.org/licenses/lgpl.html (v3) Mozilla MPL: https://www.mozilla.org/MPL/2.0/ (v2) getID3 Commercial License: https://www.getid3.org/#gCL (no longer available, existing licenses remain valid) ***************************************************************** ***************************************************************** Copies of each of the above licenses are included in the 'licenses' directory of the getID3 distribution. +----------------------------------------------+ | If you want to donate, there is a link on | | https://www.getid3.org for PayPal donations. | +----------------------------------------------+ Quick Start =========================================================================== Q: How can I check that getID3() works on my server/files? A: Unzip getID3() to a directory, then access /demos/demo.browse.php Support =========================================================================== Q: I have a question, or I found a bug. What do I do? A: The preferred method of support requests and/or bug reports is the forum at http://support.getid3.org/ Sourceforge Notification =========================================================================== It's highly recommended that you sign up for notification from Sourceforge for when new versions are released. Please visit: http://sourceforge.net/project/showfiles.php?group_id=55859 and click the little "monitor package" icon/link. If you're previously signed up for the mailing list, be aware that it has been discontinued, only the automated Sourceforge notification will be used from now on. What does getID3() do? =========================================================================== Reads & parses (to varying degrees): ¤ tags: * APE (v1 and v2) * ID3v1 (& ID3v1.1) * ID3v2 (v2.4, v2.3, v2.2) * Lyrics3 (v1 & v2) ¤ audio-lossy: * MP3/MP2/MP1 * MPC / Musepack * Ogg (Vorbis, OggFLAC, Speex, Opus) * AAC / MP4 * AC3 * DTS * RealAudio * Speex * DSS * VQF ¤ audio-lossless: * AIFF * AU * Bonk * CD-audio (*.cda) * FLAC * LA (Lossless Audio) * LiteWave * LPAC * MIDI * Monkey's Audio * OptimFROG * RKAU * Shorten * TTA * VOC * WAV (RIFF) * WavPack ¤ audio-video: * ASF: ASF, Windows Media Audio (WMA), Windows Media Video (WMV) * AVI (RIFF) * Flash * Matroska (MKV) * MPEG-1 / MPEG-2 * NSV (Nullsoft Streaming Video) * Quicktime (including MP4) * RealVideo ¤ still image: * BMP * GIF * JPEG * PNG * TIFF * SWF (Flash) * PhotoCD ¤ data: * ISO-9660 CD-ROM image (directory structure) * SZIP (limited support) * ZIP (directory structure) * TAR * CUE Writes: * ID3v1 (& ID3v1.1) * ID3v2 (v2.3 & v2.4) * VorbisComment on OggVorbis * VorbisComment on FLAC (not OggFLAC) * APE v2 * Lyrics3 (delete only) Requirements =========================================================================== * PHP 4.2.0 up to 5.2.x for getID3() 1.7.x (and earlier) * PHP 5.0.5 (or higher) for getID3() 1.8.x (and up) * PHP 5.3.0 (or higher) for getID3() 1.9.17 (and up) * PHP 5.3.0 (or higher) for getID3() 2.0.x (and up) * at least 4MB memory for PHP. 8MB or more is highly recommended. 12MB is required with all modules loaded. Usage =========================================================================== See /demos/demo.basic.php for a very basic use of getID3() with no fancy output, just scanning one file. See structure.txt for the returned data structure. *> For an example of a complete directory-browsing, <* *> file-scanning implementation of getID3(), please run <* *> /demos/demo.browse.php <* See /demos/demo.mysql.php for a sample recursive scanning code that scans every file in a given directory, and all sub-directories, stores the results in a database and allows various analysis / maintenance operations To analyze remote files over HTTP or FTP you need to copy the file locally first before running getID3(). Your code would look something like this: // Copy remote file locally to scan with getID3() $remotefilename = 'http://www.example.com/filename.mp3'; if ($fp_remote = fopen($remotefilename, 'rb')) { $localtempfilename = tempnam('/tmp', 'getID3'); if ($fp_local = fopen($localtempfilename, 'wb')) { while ($buffer = fread($fp_remote, 32768)) { fwrite($fp_local, $buffer); } fclose($fp_local); $remote_headers = array_change_key_case(get_headers($remotefilename, 1), CASE_LOWER); $remote_filesize = (isset($remote_headers['content-length']) ? (is_array($remote_headers['content-length']) ? $remote_headers['content-length'][count($remote_headers['content-length']) - 1] : $remote_headers['content-length']) : null); // Initialize getID3 engine $getID3 = new getID3; $ThisFileInfo = $getID3->analyze($localtempfilename, $remote_filesize, basename($remotefilename)); // Delete temporary file unlink($localtempfilename); } fclose($fp_remote); } Note: since v1.9.9-20150212 it is possible a second and third parameter to $getID3->analyze(), for original filesize and original filename respectively. This permits you to download only a portion of a large remote file but get accurate playtime estimates, assuming the format only requires the beginning of the file for correct format analysis. See /demos/demo.write.php for how to write tags. What does the returned data structure look like? =========================================================================== See structure.txt It is recommended that you look at the output of /demos/demo.browse.php scanning the file(s) you're interested in to confirm what data is actually returned for any particular filetype in general, and your files in particular, as the actual data returned may vary considerably depending on what information is available in the file itself. Notes =========================================================================== getID3() 1.x: If the format parser encounters a critical problem, it will return something in $fileinfo['error'], describing the encountered error. If a less critical error or notice is generated it will appear in $fileinfo['warning']. Both keys may contain more than one warning or error. If something is returned in ['error'] then the file was not correctly parsed and returned data may or may not be correct and/or complete. If something is returned in ['warning'] (and not ['error']) then the data that is returned is OK - usually getID3() is reporting errors in the file that have been worked around due to known bugs in other programs. Some warnings may indicate that the data that is returned is OK but that some data could not be extracted due to errors in the file. getID3() 2.x: See above except errors are thrown (so you will only get one error). Disclaimer =========================================================================== getID3() has been tested on many systems, on many types of files, under many operating systems, and is generally believe to be stable and safe. That being said, there is still the chance there is an undiscovered and/or unfixed bug that may potentially corrupt your file, especially within the writing functions. By using getID3() you agree that it's not my fault if any of your files are corrupted. In fact, I'm not liable for anything :) License =========================================================================== GNU General Public License - see license.txt This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA. FAQ: Q: Can I use getID3() in my program? Do I need a commercial license? A: You're generally free to use getID3 however you see fit. The only case in which you would require a commercial license is if you're selling your closed-source program that integrates getID3. If you sell your program including a copy of getID3, that's fine as long as you include a copy of the sourcecode when you sell it. Or you can distribute your code without getID3 and say "download it from getid3.sourceforge.net" Why is it called "getID3()" if it does so much more than just that? =========================================================================== v0.1 did in fact just do that. I don't have a copy of code that old, but I could essentially write it today with a one-line function: function getID3($filename) { return unpack('a3TAG/a30title/a30artist/a30album/a4year/a28comment/c1track/c1genreid', substr(file_get_contents($filename), -128)); } Future Plans =========================================================================== https://www.getid3.org/phpBB3/viewforum.php?f=7 * Better support for MP4 container format * Scan for appended ID3v2 tag at end of file per ID3v2.4 specs (Section 5.0) * Support for JPEG-2000 (http://www.morgan-multimedia.com/jpeg2000_overview.htm) * Support for MOD (mod/stm/s3m/it/xm/mtm/ult/669) * Support for ACE (thanks Vince) * Support for Ogg other than Vorbis, Speex and OggFlac (ie. Ogg+Xvid) * Ability to create Xing/LAME VBR header for VBR MP3s that are missing VBR header * Ability to "clean" ID3v2 padding (replace invalid padding with valid padding) * Warn if MP3s change version mid-stream (in full-scan mode) * check for corrupt/broken mid-file MP3 streams in histogram scan * Support for lossless-compression formats (http://www.firstpr.com.au/audiocomp/lossless/#Links) (http://compression.ca/act-sound.html) (http://web.inter.nl.net/users/hvdh/lossless/lossless.htm) * Support for RIFF-INFO chunks * http://lotto.st-andrews.ac.uk/~njh/tag_interchange.html (thanks Nick Humfrey ) * http://abcavi.narod.ru/sof/abcavi/infotags.htm (thanks Kibi) * Better support for Bink video * http://www.hr/josip/DSP/AudioFile2.html * http://www.pcisys.net/~melanson/codecs/ * Detect mp3PRO * Support for PSD * Support for JPC * Support for JP2 * Support for JPX * Support for JB2 * Support for IFF * Support for ICO * Support for ANI * Support for EXE (comments, author, etc) (thanks p*quaedackersØplanet*nl) * Support for DVD-IFO (region, subtitles, aspect ratio, etc) (thanks p*quaedackersØplanet*nl) * More complete support for SWF - parsing encapsulated MP3 and/or JPEG content (thanks n8n8Øyahoo*com) * Support for a2b * Optional scan-through-frames for AVI verification (thanks rockcohenØmassive-interactive*nl) * Support for TTF (thanks infoØbutterflyx*com) * Support for DSS (https://www.getid3.org/phpBB3/viewtopic.php?t=171) * Support for SMAF (http://smaf-yamaha.com/what/demo.html) https://www.getid3.org/phpBB3/viewtopic.php?t=182 * Support for AMR (https://www.getid3.org/phpBB3/viewtopic.php?t=195) * Support for 3gpp (https://www.getid3.org/phpBB3/viewtopic.php?t=195) * Support for ID4 (http://www.wackysoft.cjb.net grizlyY2KØhotmail*com) * Parse XML data returned in Ogg comments * Parse XML data from Quicktime SMIL metafiles (klausrathØmac*com) * ID3v2 genre string creator function * More complete parsing of JPG * Support for all old-style ASF packets * ASF/WMA/WMV tag writing * Parse declared T??? ID3v2 text information frames, where appropriate (thanks Christian Fritz for the idea) * Recognize encoder: http://www.guerillasoft.com/EncSpot2/index.html http://ff123.net/identify.html http://www.hydrogenaudio.org/?act=ST&f=16&t=9414 http://www.hydrogenaudio.org/?showtopic=11785 * Support for other OS/2 bitmap structures: Bitmap Array('BA'), Color Icon('CI'), Color Pointer('CP'), Icon('IC'), Pointer ('PT') http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm * Support for WavPack RAW mode * ASF/WMA/WMV data packet parsing * ID3v2FrameFlagsLookupTagAlter() * ID3v2FrameFlagsLookupFileAlter() * obey ID3v2 tag alter/preserve/discard rules * http://www.geocities.com/SiliconValley/Sector/9654/Softdoc/Illyrium/Aolyr.htm * proper checking for LINK/LNK frame validity in ID3v2 writing * proper checking for ASPI-TLEN frame validity in ID3v2 writing * proper checking for COMR frame validity in ID3v2 writing * http://www.geocities.co.jp/SiliconValley-Oakland/3664/index.html * decode GEOB ID3v2 structure as encoded by RealJukebox, decode NCON ID3v2 structure as encoded by MusicMatch (probably won't happen - the formats are proprietary) Known Bugs/Issues in getID3() that may be fixed eventually =========================================================================== https://www.getid3.org/phpBB3/viewtopic.php?t=25 * Cannot determine bitrate for MPEG video with VBR video data (need documentation) * Interlace/progressive cannot be determined for MPEG video (need documentation) * MIDI playtime is sometimes inaccurate * AAC-RAW mode files cannot be identified * WavPack-RAW mode files cannot be identified * mp4 files report lots of "Unknown QuickTime atom type" (need documentation) * Encrypted ASF/WMA/WMV files warn about "unhandled GUID ASF_Content_Encryption_Object" * Bitrate split between audio and video cannot be calculated for NSV, only the total bitrate. (need documentation) * All Ogg formats (Vorbis, OggFLAC, Speex) are affected by the problem of large VorbisComments spanning multiple Ogg pages, but but only OggVorbis files can be processed with vorbiscomment. * The version of "head" supplied with Mac OS 10.2.8 (maybe other versions too) does only understands a single option (-n) and therefore fails. getID3 ignores this and returns wrong md5_data. Known Bugs/Issues in getID3() that cannot be fixed -------------------------------------------------- https://www.getid3.org/phpBB3/viewtopic.php?t=25 * 32-bit PHP installations only: Files larger than 2GB cannot always be parsed fully by getID3() due to limitations in the 32-bit PHP filesystem functions. NOTE: Since v1.7.8b3 there is partial support for larger-than- 2GB files, most of which will parse OK, as long as no critical data is located beyond the 2GB offset. Known will-work: * all file formats on 64-bit PHP * ZIP (format doesn't support files >2GB) * FLAC (current encoders don't support files >2GB) Known will-not-work: * ID3v1 tags (always located at end-of-file) * Lyrics3 tags (always located at end-of-file) * APE tags (always located at end-of-file) Maybe-will-work: * Quicktime (will work if needed metadata is before 2GB offset, that is if the file has been hinted/optimized for streaming) * RIFF.WAV (should work fine, but gives warnings about not being able to parse all chunks) * RIFF.AVI (playtime will probably be wrong, is only based on "movi" chunk that fits in the first 2GB, should issue error to show that playtime is incorrect. Other data should be mostly correct, assuming that data is constant throughout the file) * PHP <= v5 on Windows cannot read UTF-8 filenames Known Bugs/Issues in other programs ----------------------------------- https://www.getid3.org/phpBB3/viewtopic.php?t=25 * MusicBrainz Picard (at least up to v1.3.2) writes multiple ID3v2.3 genres in non-standard forward-slash separated text rather than parenthesis-numeric+refinement style per the ID3v2.3 specs. Tags written in ID3v2.4 mode are written correctly. (detected and worked around by getID3()) * PZ TagEditor v4.53.408 has been known to insert ID3v2.3 frames into an existing ID3v2.2 tag which, of course, breaks things * Windows Media Player (up to v11) and iTunes (up to v10+) do not correctly handle ID3v2.3 tags with UTF-16BE+BOM encoding (they assume the data is UTF-16LE+BOM and either crash (WMP) or output Asian character set (iTunes) * Winamp (up to v2.80 at least) does not support ID3v2.4 tags, only ID3v2.3 see: http://forums.winamp.com/showthread.php?postid=387524 * Some versions of Helium2 (www.helium2.com) do not write ID3v2.4-compliant Frame Sizes, even though the tag is marked as ID3v2.4) (detected by getID3()) * MP3ext V3.3.17 places a non-compliant padding string at the end of the ID3v2 header. This is supposedly fixed in v3.4b21 but only if you manually add a registry key. This fix is not yet confirmed. (detected by getID3()) * CDex v1.40 (fixed by v1.50b7) writes non-compliant Ogg comment strings, supposed to be in the format "NAME=value" but actually written just "value" (detected by getID3()) * Oggenc 0.9-rc3 flags the encoded file as ABR whether it's actually ABR or VBR. * iTunes (versions "v7.0.0.70" is known-guilty, probably other versions are too) writes ID3v2.3 comment tags using an ID3v2.2 frame name (3-bytes) null-padded to 4 bytes which is not valid for ID3v2.3+ (detected by getID3() since 1.9.12-201603221746) * iTunes (versions "X v2.0.3", "v3.0.1" are known-guilty, probably other versions are too) writes ID3v2.3 comment tags using a frame name 'COM ' which is not valid for ID3v2.3+ (it's an ID3v2.2-style frame name) (detected by getID3()) * MP2enc does not encode mono CBR MP2 files properly (half speed sound and double playtime) * MP2enc does not encode mono VBR MP2 files properly (actually encoded as stereo) * tooLAME does not encode mono VBR MP2 files properly (actually encoded as stereo) * AACenc encodes files in VBR mode (actually ABR) even if CBR is specified * AAC/ADIF - bitrate_mode = cbr for vbr files * LAME 3.90-3.92 prepends one frame of null data (space for the LAME/VBR header, but it never gets written) when encoding in CBR mode with the DLL * Ahead Nero encodes TwinVQF with a DSIZ value (which is supposed to be the filesize in bytes) of "0" for TwinVQF v1.0 and "1" for TwinVQF v2.0 (detected by getID3()) * Ahead Nero encodes TwinVQF files 1 second shorter than they should be * AAC-ADTS files are always actually encoded VBR, even if CBR mode is specified (the CBR-mode switches on the encoder enable ABR mode, not CBR as such, but it's not possible to tell the difference between such ABR files and true VBR) * STREAMINFO.audio_signature in OggFLAC is always null. "The reason it's like that is because there is no seeking support in libOggFLAC yet, so it has no way to go back and write the computed sum after encoding. Seeking support in Ogg FLAC is the #1 item for the next release." - Josh Coalson (FLAC developer) NOTE: getID3() will calculate md5_data in a method similar to other file formats, but that value cannot be compared to the md5_data value from FLAC data in a FLAC file format. * STREAMINFO.audio_signature is not calculated in FLAC v0.3.0 & v0.4.0 - getID3() will calculate md5_data in a method similar to other file formats, but that value cannot be compared to the md5_data value from FLAC v0.5.0+ * RioPort (various versions including 2.0 and 3.11) tags ID3v2 with a WCOM frame that has no data portion * Earlier versions of Coolplayer adds illegal ID3 tags to Ogg Vorbis files, thus making them corrupt. * Meracl ID3 Tag Writer v1.3.4 (and older) incorrectly truncates the last byte of data from an MP3 file when appending a new ID3v1 tag. (detected by getID3()) * Lossless-Audio files encoded with and without the -noseek switch do actually differ internally and therefore cannot match md5_data * iTunes has been known to append a new ID3v1 tag on the end of an existing ID3v1 tag when ID3v2 tag is also present (detected by getID3()) * MediaMonkey may write a blank RGAD ID3v2 frame but put actual replay gain adjustments in a series of user-defined TXXX frames (detected and handled by getID3() since v1.9.2) Reference material: =========================================================================== [www.id3.org material now mirrored at http://id3lib.sourceforge.net/id3/] * http://www.id3.org/id3v2.4.0-structure.txt * http://www.id3.org/id3v2.4.0-frames.txt * http://www.id3.org/id3v2.4.0-changes.txt * http://www.id3.org/id3v2.3.0.txt * http://www.id3.org/id3v2-00.txt * http://www.id3.org/mp3frame.html * http://minnie.tuhs.org/pipermail/mp3encoder/2001-January/001800.html * http://www.dv.co.yu/mpgscript/mpeghdr.htm * http://www.mp3-tech.org/programmer/frame_header.html * http://users.belgacom.net/gc247244/extra/tag.html * http://gabriel.mp3-tech.org/mp3infotag.html * http://www.id3.org/iso4217.html * http://www.unicode.org/Public/MAPPINGS/ISO8859/8859-1.TXT * http://www.xiph.org/ogg/vorbis/doc/framing.html * http://www.xiph.org/ogg/vorbis/doc/v-comment.html * http://leknor.com/code/php/class.ogg.php.txt * http://www.id3.org/iso639-2.html * http://www.id3.org/lyrics3.html * http://www.id3.org/lyrics3200.html * http://www.psc.edu/general/software/packages/ieee/ieee.html * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html * http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html * http://www.jmcgowan.com/avi.html * http://www.wotsit.org/ * http://www.herdsoft.com/ti/davincie/davp3xo2.htm * http://www.mathdogs.com/vorbis-illuminated/bitstream-appendix.html * "Standard MIDI File Format" by Dustin Caldwell (from www.wotsit.org) * http://midistudio.com/Help/GMSpecs_Patches.htm * http://www.xiph.org/archives/vorbis/200109/0459.html * http://www.replaygain.org/ * http://www.lossless-audio.com/ * http://download.microsoft.com/download/winmediatech40/Doc/1.0/WIN98MeXP/EN-US/ASF_Specification_v.1.0.exe * http://mediaxw.sourceforge.net/files/doc/Active%20Streaming%20Format%20(ASF)%201.0%20Specification.pdf * http://www.uni-jena.de/~pfk/mpp/sv8/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/sv8/) * http://jfaul.de/atl/ * http://www.uni-jena.de/~pfk/mpp/ (archived at http://www.hydrogenaudio.org/musepack/klemm/www.personal.uni-jena.de/~pfk/mpp/) * http://www.libpng.org/pub/png/spec/png-1.2-pdg.html * http://www.real.com/devzone/library/creating/rmsdk/doc/rmff.htm * http://www.fastgraph.com/help/bmp_os2_header_format.html * http://netghost.narod.ru/gff/graphics/summary/os2bmp.htm * http://flac.sourceforge.net/format.html * http://www.research.att.com/projects/mpegaudio/mpeg2.html * http://www.audiocoding.com/wiki/index.php?page=AAC * http://libmpeg.org/mpeg4/doc/w2203tfs.pdf * http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt * http://developer.apple.com/techpubs/quicktime/qtdevdocs/RM/frameset.htm * http://www.nullsoft.com/nsv/ * http://www.wotsit.org/download.asp?f=iso9660 * http://sandbox.mc.edu/~bennet/cs110/tc/tctod.html * http://www.cdroller.com/htm/readdata.html * http://www.speex.org/manual/node10.html * http://www.harmony-central.com/Computer/Programming/aiff-file-format.doc * http://www.faqs.org/rfcs/rfc2361.html * http://ghido.shelter.ro/ * http://www.ebu.ch/tech_t3285.pdf * http://www.sr.se/utveckling/tu/bwf * http://ftp.aessc.org/pub/aes46-2002.pdf * http://cartchunk.org:8080/ * http://www.broadcastpapers.com/radio/cartchunk01.htm * http://www.hr/josip/DSP/AudioFile2.html * http://home.attbi.com/~chris.bagwell/AudioFormats-11.html * http://www.pure-mac.com/extkey.html * http://cesnet.dl.sourceforge.net/sourceforge/bonkenc/bonk-binary-format-0.9.txt * http://www.headbands.com/gspot/ * http://www.openswf.org/spec/SWFfileformat.html * http://j-faul.virtualave.net/ * http://www.btinternet.com/~AnthonyJ/Atari/programming/avr_format.html * http://cui.unige.ch/OSG/info/AudioFormats/ap11.html * http://sswf.sourceforge.net/SWFalexref.html * http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt * http://www-lehre.informatik.uni-osnabrueck.de/~fbstark/diplom/docs/swf/Flash_Uncovered.htm * http://developer.apple.com/quicktime/icefloe/dispatch012.html * http://www.csdn.net/Dev/Format/graphics/PCD.htm * http://tta.iszf.irk.ru/ * http://www.atsc.org/standards/a_52a.pdf * http://www.alanwood.net/unicode/ * http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html * http://www.its.msstate.edu/net/real/reports/config/tags.stats * http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt * http://brennan.young.net/Comp/LiveStage/things.html * http://www.multiweb.cz/twoinches/MP3inside.htm * http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended * http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ * http://www.unicode.org/unicode/faq/utf_bom.html * http://tta.corecodec.org/?menu=format * http://www.scvi.net/nsvformat.htm * http://pda.etsi.org/pda/queryform.asp * http://cpansearch.perl.org/src/RGIBSON/Audio-DSS-0.02/lib/Audio/DSS.pm * http://trac.musepack.net/trac/wiki/SV8Specification * http://wyday.com/cuesharp/specification.php * http://www.sno.phy.queensu.ca/~phil/exiftool/TagNames/Nikon.html * http://www.codeproject.com/Articles/8295/MPEG-Audio-Frame-Header * http://dsd-guide.com/sites/default/files/white-papers/DSFFileFormatSpec_E.pdf * https://fileformats.fandom.com/wiki/Torrent_filePK!Xݓݓ module.audio-video.quicktime.phpnuȯ // // available at https://github.com/JamesHeinrich/getID3 // // or https://www.getid3.org // // or http://getid3.sourceforge.net // // see readme.txt for more details // ///////////////////////////////////////////////////////////////// // // // module.audio-video.quicktime.php // // module for analyzing Quicktime and MP3-in-MP4 files // // dependencies: module.audio.mp3.php // // dependencies: module.tag.id3v2.php // // /// ///////////////////////////////////////////////////////////////// if (!defined('GETID3_INCLUDEPATH')) { // prevent path-exposing attacks that access modules directly on public webservers exit; } getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.mp3.php', __FILE__, true); getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v2.php', __FILE__, true); // needed for ISO 639-2 language code lookup class getid3_quicktime extends getid3_handler { /** audio-video.quicktime * return all parsed data from all atoms if true, otherwise just returned parsed metadata * * @var bool */ public $ReturnAtomData = false; /** audio-video.quicktime * return all parsed data from all atoms if true, otherwise just returned parsed metadata * * @var bool */ public $ParseAllPossibleAtoms = false; /** * real ugly, but so is the QuickTime structure that stores keys and values in different multi-nested locations that are hard to relate to each other * https://github.com/JamesHeinrich/getID3/issues/214 * * @var int */ private $metaDATAkey = 1; /** * @return bool */ public function Analyze() { $info = &$this->getid3->info; $this->metaDATAkey = 1; $info['fileformat'] = 'quicktime'; $info['quicktime']['hinting'] = false; $info['quicktime']['controller'] = 'standard'; // may be overridden if 'ctyp' atom is present $this->fseek($info['avdataoffset']); $offset = 0; $atomcounter = 0; $atom_data_read_buffer_size = $info['php_memory_limit'] ? round($info['php_memory_limit'] / 4) : $this->getid3->option_fread_buffer_size * 1024; // set read buffer to 25% of PHP memory limit (if one is specified), otherwise use option_fread_buffer_size [default: 32MB] while ($offset < $info['avdataend']) { if (!getid3_lib::intValueSupported($offset)) { $this->error('Unable to parse atom at offset '.$offset.' because beyond '.round(PHP_INT_MAX / 1073741824).'GB limit of PHP filesystem functions'); break; } $this->fseek($offset); $AtomHeader = $this->fread(8); // https://github.com/JamesHeinrich/getID3/issues/382 // Atom sizes are stored as 32-bit number in most cases, but sometimes (notably for "mdat") // a 64-bit value is required, in which case the normal 32-bit size field is set to 0x00000001 // and the 64-bit "real" size value is the next 8 bytes. $atom_size_extended_bytes = 0; $atomsize = getid3_lib::BigEndian2Int(substr($AtomHeader, 0, 4)); $atomname = substr($AtomHeader, 4, 4); if ($atomsize == 1) { $atom_size_extended_bytes = 8; $atomsize = getid3_lib::BigEndian2Int($this->fread($atom_size_extended_bytes)); } if (($offset + $atomsize) > $info['avdataend']) { $info['quicktime'][$atomname]['name'] = $atomname; $info['quicktime'][$atomname]['size'] = $atomsize; $info['quicktime'][$atomname]['offset'] = $offset; $this->error('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atomsize.' bytes)'); return false; } if ($atomsize == 0) { // Furthermore, for historical reasons the list of atoms is optionally // terminated by a 32-bit integer set to 0. If you are writing a program // to read user data atoms, you should allow for the terminating 0. $info['quicktime'][$atomname]['name'] = $atomname; $info['quicktime'][$atomname]['size'] = $atomsize; $info['quicktime'][$atomname]['offset'] = $offset; break; } $atomHierarchy = array(); $parsedAtomData = $this->QuicktimeParseAtom($atomname, $atomsize, $this->fread(min($atomsize - $atom_size_extended_bytes, $atom_data_read_buffer_size)), $offset, $atomHierarchy, $this->ParseAllPossibleAtoms); $parsedAtomData['name'] = $atomname; $parsedAtomData['size'] = $atomsize; $parsedAtomData['offset'] = $offset; if ($atom_size_extended_bytes) { $parsedAtomData['xsize_bytes'] = $atom_size_extended_bytes; } if (in_array($atomname, array('uuid'))) { @$info['quicktime'][$atomname][] = $parsedAtomData; } else { $info['quicktime'][$atomname] = $parsedAtomData; } $offset += $atomsize; $atomcounter++; } if (!empty($info['avdataend_tmp'])) { // this value is assigned to a temp value and then erased because // otherwise any atoms beyond the 'mdat' atom would not get parsed $info['avdataend'] = $info['avdataend_tmp']; unset($info['avdataend_tmp']); } if (isset($info['quicktime']['comments']['chapters']) && is_array($info['quicktime']['comments']['chapters']) && (count($info['quicktime']['comments']['chapters']) > 0)) { $durations = $this->quicktime_time_to_sample_table($info); for ($i = 0; $i < count($info['quicktime']['comments']['chapters']); $i++) { $bookmark = array(); $bookmark['title'] = $info['quicktime']['comments']['chapters'][$i]; if (isset($durations[$i])) { $bookmark['duration_sample'] = $durations[$i]['sample_duration']; if ($i > 0) { $bookmark['start_sample'] = $info['quicktime']['bookmarks'][($i - 1)]['start_sample'] + $info['quicktime']['bookmarks'][($i - 1)]['duration_sample']; } else { $bookmark['start_sample'] = 0; } if ($time_scale = $this->quicktime_bookmark_time_scale($info)) { $bookmark['duration_seconds'] = $bookmark['duration_sample'] / $time_scale; $bookmark['start_seconds'] = $bookmark['start_sample'] / $time_scale; } } $info['quicktime']['bookmarks'][] = $bookmark; } } if (isset($info['quicktime']['temp_meta_key_names'])) { unset($info['quicktime']['temp_meta_key_names']); } if (!empty($info['quicktime']['comments']['location.ISO6709'])) { // https://en.wikipedia.org/wiki/ISO_6709 foreach ($info['quicktime']['comments']['location.ISO6709'] as $ISO6709string) { $ISO6709parsed = array('latitude'=>false, 'longitude'=>false, 'altitude'=>false); if (preg_match('#^([\\+\\-])([0-9]{2}|[0-9]{4}|[0-9]{6})(\\.[0-9]+)?([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?(([\\+\\-])([0-9]{3}|[0-9]{5}|[0-9]{7})(\\.[0-9]+)?)?/$#', $ISO6709string, $matches)) { @list($dummy, $lat_sign, $lat_deg, $lat_deg_dec, $lon_sign, $lon_deg, $lon_deg_dec, $dummy, $alt_sign, $alt_deg, $alt_deg_dec) = $matches; if (strlen($lat_deg) == 2) { // [+-]DD.D $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * (float) (ltrim($lat_deg, '0').$lat_deg_dec); } elseif (strlen($lat_deg) == 4) { // [+-]DDMM.M $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * (int) ltrim(substr($lat_deg, 0, 2), '0') + ((float) (ltrim(substr($lat_deg, 2, 2), '0').$lat_deg_dec) / 60); } elseif (strlen($lat_deg) == 6) { // [+-]DDMMSS.S $ISO6709parsed['latitude'] = (($lat_sign == '-') ? -1 : 1) * (int) ltrim(substr($lat_deg, 0, 2), '0') + ((int) ltrim(substr($lat_deg, 2, 2), '0') / 60) + ((float) (ltrim(substr($lat_deg, 4, 2), '0').$lat_deg_dec) / 3600); } if (strlen($lon_deg) == 3) { // [+-]DDD.D $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * (float) (ltrim($lon_deg, '0').$lon_deg_dec); } elseif (strlen($lon_deg) == 5) { // [+-]DDDMM.M $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * (int) ltrim(substr($lon_deg, 0, 2), '0') + ((float) (ltrim(substr($lon_deg, 2, 2), '0').$lon_deg_dec) / 60); } elseif (strlen($lon_deg) == 7) { // [+-]DDDMMSS.S $ISO6709parsed['longitude'] = (($lon_sign == '-') ? -1 : 1) * (int) ltrim(substr($lon_deg, 0, 2), '0') + ((int) ltrim(substr($lon_deg, 2, 2), '0') / 60) + ((float) (ltrim(substr($lon_deg, 4, 2), '0').$lon_deg_dec) / 3600); } if (strlen($alt_deg) == 3) { // [+-]DDD.D $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * (float) (ltrim($alt_deg, '0').$alt_deg_dec); } elseif (strlen($alt_deg) == 5) { // [+-]DDDMM.M $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * (int) ltrim(substr($alt_deg, 0, 2), '0') + ((float) (ltrim(substr($alt_deg, 2, 2), '0').$alt_deg_dec) / 60); } elseif (strlen($alt_deg) == 7) { // [+-]DDDMMSS.S $ISO6709parsed['altitude'] = (($alt_sign == '-') ? -1 : 1) * (int) ltrim(substr($alt_deg, 0, 2), '0') + ((int) ltrim(substr($alt_deg, 2, 2), '0') / 60) + ((float) (ltrim(substr($alt_deg, 4, 2), '0').$alt_deg_dec) / 3600); } foreach (array('latitude', 'longitude', 'altitude') as $key) { if ($ISO6709parsed[$key] !== false) { $value = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]); if (!isset($info['quicktime']['comments']['gps_'.$key]) || !in_array($value, $info['quicktime']['comments']['gps_'.$key])) { @$info['quicktime']['comments']['gps_'.$key][] = (($lat_sign == '-') ? -1 : 1) * floatval($ISO6709parsed[$key]); } } } } if ($ISO6709parsed['latitude'] === false) { $this->warning('location.ISO6709 string not parsed correctly: "'.$ISO6709string.'", please submit as a bug'); } break; } } if (!isset($info['bitrate']) && !empty($info['playtime_seconds'])) { $info['bitrate'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / $info['playtime_seconds']; } if (isset($info['bitrate']) && !isset($info['audio']['bitrate']) && !isset($info['quicktime']['video'])) { $info['audio']['bitrate'] = $info['bitrate']; } if (!empty($info['bitrate']) && !empty($info['audio']['bitrate']) && empty($info['video']['bitrate']) && !empty($info['video']['frame_rate']) && !empty($info['video']['resolution_x']) && ($info['bitrate'] > $info['audio']['bitrate'])) { $info['video']['bitrate'] = $info['bitrate'] - $info['audio']['bitrate']; } if (!empty($info['playtime_seconds']) && !isset($info['video']['frame_rate']) && !empty($info['quicktime']['stts_framecount'])) { foreach ($info['quicktime']['stts_framecount'] as $key => $samples_count) { $samples_per_second = $samples_count / $info['playtime_seconds']; if ($samples_per_second > 240) { // has to be audio samples } else { $info['video']['frame_rate'] = $samples_per_second; break; } } } if ($info['audio']['dataformat'] == 'mp4') { $info['fileformat'] = 'mp4'; if (empty($info['video']['resolution_x'])) { $info['mime_type'] = 'audio/mp4'; unset($info['video']['dataformat']); } else { $info['mime_type'] = 'video/mp4'; } } if (!empty($info['quicktime']['ftyp']['signature']) && in_array($info['quicktime']['ftyp']['signature'], array('heic','heix','hevc','hevx','heim','heis','hevm','hevs'))) { if ($info['mime_type'] == 'video/quicktime') { // default value, as we // https://en.wikipedia.org/wiki/High_Efficiency_Image_File_Format $this->error('HEIF files not currently supported'); switch ($info['quicktime']['ftyp']['signature']) { // https://github.com/strukturag/libheif/issues/83 (comment by Dirk Farin 2018-09-14) case 'heic': // the usual HEIF images case 'heix': // 10bit images, or anything that uses h265 with range extension case 'hevc': // brands for image sequences case 'hevx': // brands for image sequences case 'heim': // multiview case 'heis': // scalable case 'hevm': // multiview sequence case 'hevs': // scalable sequence $info['fileformat'] = 'heif'; $info['mime_type'] = 'image/heif'; break; } } } if (!$this->ReturnAtomData) { unset($info['quicktime']['moov']); } if (empty($info['audio']['dataformat']) && !empty($info['quicktime']['audio'])) { $info['audio']['dataformat'] = 'quicktime'; } if (empty($info['video']['dataformat']) && !empty($info['quicktime']['video'])) { $info['video']['dataformat'] = 'quicktime'; } if (isset($info['video']) && ($info['mime_type'] == 'audio/mp4') && empty($info['video']['resolution_x']) && empty($info['video']['resolution_y'])) { unset($info['video']); } return true; } /** * @param string $atomname * @param int $atomsize * @param string $atom_data * @param int $baseoffset * @param array $atomHierarchy * @param bool $ParseAllPossibleAtoms * * @return array|false */ public function QuicktimeParseAtom($atomname, $atomsize, $atom_data, $baseoffset, &$atomHierarchy, $ParseAllPossibleAtoms) { // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm // https://code.google.com/p/mp4v2/wiki/iTunesMetadata $info = &$this->getid3->info; $atom_parent = end($atomHierarchy); // not array_pop($atomHierarchy); see https://www.getid3.org/phpBB3/viewtopic.php?t=1717 array_push($atomHierarchy, $atomname); $atom_structure = array(); $atom_structure['hierarchy'] = implode(' ', $atomHierarchy); $atom_structure['name'] = $atomname; $atom_structure['size'] = $atomsize; $atom_structure['offset'] = $baseoffset; if (substr($atomname, 0, 3) == "\x00\x00\x00") { // https://github.com/JamesHeinrich/getID3/issues/139 $atomname = getid3_lib::BigEndian2Int($atomname); $atom_structure['name'] = $atomname; $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms); } else { switch ($atomname) { case 'moov': // MOVie container atom case 'moof': // MOvie Fragment box case 'trak': // TRAcK container atom case 'traf': // TRAck Fragment box case 'clip': // CLIPping container atom case 'matt': // track MATTe container atom case 'edts': // EDiTS container atom case 'tref': // Track REFerence container atom case 'mdia': // MeDIA container atom case 'minf': // Media INFormation container atom case 'dinf': // Data INFormation container atom case 'nmhd': // Null Media HeaDer container atom case 'udta': // User DaTA container atom case 'cmov': // Compressed MOVie container atom case 'rmra': // Reference Movie Record Atom case 'rmda': // Reference Movie Descriptor Atom case 'gmhd': // Generic Media info HeaDer atom (seen on QTVR) $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms); break; case 'ilst': // Item LiST container atom if ($atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms)) { // some "ilst" atoms contain data atoms that have a numeric name, and the data is far more accessible if the returned array is compacted $allnumericnames = true; foreach ($atom_structure['subatoms'] as $subatomarray) { if (!is_integer($subatomarray['name']) || (count($subatomarray['subatoms']) != 1)) { $allnumericnames = false; break; } } if ($allnumericnames) { $newData = array(); foreach ($atom_structure['subatoms'] as $subatomarray) { foreach ($subatomarray['subatoms'] as $newData_subatomarray) { unset($newData_subatomarray['hierarchy'], $newData_subatomarray['name']); $newData[$subatomarray['name']] = $newData_subatomarray; break; } } $atom_structure['data'] = $newData; unset($atom_structure['subatoms']); } } break; case 'stbl': // Sample TaBLe container atom $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($atom_data, $baseoffset + 8, $atomHierarchy, $ParseAllPossibleAtoms); $isVideo = false; $framerate = 0; $framecount = 0; foreach ($atom_structure['subatoms'] as $key => $value_array) { if (isset($value_array['sample_description_table'])) { foreach ($value_array['sample_description_table'] as $key2 => $value_array2) { if (isset($value_array2['data_format'])) { switch ($value_array2['data_format']) { case 'avc1': case 'mp4v': // video data $isVideo = true; break; case 'mp4a': // audio data break; } } } } elseif (isset($value_array['time_to_sample_table'])) { foreach ($value_array['time_to_s