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<?php |
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///////////////////////////////////////////////////////////////// |
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/// getID3() by James Heinrich <[email protected]> // |
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// available at http://getid3.sourceforge.net // |
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// or http://www.getid3.org // |
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// also https://github.com/JamesHeinrich/getID3 // |
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///////////////////////////////////////////////////////////////// |
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// See readme.txt for more details // |
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///////////////////////////////////////////////////////////////// |
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// // |
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// module.audio.ogg.php // |
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// module for analyzing Ogg Vorbis, OggFLAC and Speex files // |
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// dependencies: module.audio.flac.php // |
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// /// |
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///////////////////////////////////////////////////////////////// |
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getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio.flac.php', __FILE__, true); |
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class getid3_ogg extends getid3_handler |
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{ |
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// http://xiph.org/vorbis/doc/Vorbis_I_spec.html |
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public function Analyze() { |
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$info = &$this->getid3->info; |
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$info['fileformat'] = 'ogg'; |
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// Warn about illegal tags - only vorbiscomments are allowed |
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if (isset($info['id3v2'])) { |
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$info['warning'][] = 'Illegal ID3v2 tag present.'; |
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} |
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if (isset($info['id3v1'])) { |
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$info['warning'][] = 'Illegal ID3v1 tag present.'; |
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} |
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if (isset($info['ape'])) { |
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$info['warning'][] = 'Illegal APE tag present.'; |
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} |
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// Page 1 - Stream Header |
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$this->fseek($info['avdataoffset']); |
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$oggpageinfo = $this->ParseOggPageHeader(); |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
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if ($this->ftell() >= $this->getid3->fread_buffer_size()) { |
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$info['error'][] = 'Could not find start of Ogg page in the first '.$this->getid3->fread_buffer_size().' bytes (this might not be an Ogg-Vorbis file?)'; |
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unset($info['fileformat']); |
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unset($info['ogg']); |
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return false; |
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} |
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$filedata = $this->fread($oggpageinfo['page_length']); |
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$filedataoffset = 0; |
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if (substr($filedata, 0, 4) == 'fLaC') { |
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$info['audio']['dataformat'] = 'flac'; |
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$info['audio']['bitrate_mode'] = 'vbr'; |
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$info['audio']['lossless'] = true; |
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} elseif (substr($filedata, 1, 6) == 'vorbis') { |
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$this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); |
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} elseif (substr($filedata, 0, 8) == 'OpusHead') { |
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if( $this->ParseOpusPageHeader($filedata, $filedataoffset, $oggpageinfo) == false ) { |
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return false; |
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} |
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} elseif (substr($filedata, 0, 8) == 'Speex ') { |
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// http://www.speex.org/manual/node10.html |
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$info['audio']['dataformat'] = 'speex'; |
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$info['mime_type'] = 'audio/speex'; |
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$info['audio']['bitrate_mode'] = 'abr'; |
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$info['audio']['lossless'] = false; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'Speex ' |
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$filedataoffset += 8; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20); |
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$filedataoffset += 20; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['speex']['speex_version'] = trim($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']); |
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$info['speex']['sample_rate'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate']; |
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$info['speex']['channels'] = $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels']; |
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$info['speex']['vbr'] = (bool) $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr']; |
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$info['speex']['band_type'] = $this->SpeexBandModeLookup($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']); |
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$info['audio']['sample_rate'] = $info['speex']['sample_rate']; |
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$info['audio']['channels'] = $info['speex']['channels']; |
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if ($info['speex']['vbr']) { |
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$info['audio']['bitrate_mode'] = 'vbr'; |
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} |
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} elseif (substr($filedata, 0, 7) == "\x80".'theora') { |
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// http://www.theora.org/doc/Theora.pdf (section 6.2) |
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$info['ogg']['pageheader']['theora']['theora_magic'] = substr($filedata, $filedataoffset, 7); // hard-coded to "\x80.'theora' |
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$filedataoffset += 7; |
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$info['ogg']['pageheader']['theora']['version_major'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['version_minor'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['version_revision'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['frame_width_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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$filedataoffset += 2; |
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$info['ogg']['pageheader']['theora']['frame_height_macroblocks'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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$filedataoffset += 2; |
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$info['ogg']['pageheader']['theora']['resolution_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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$filedataoffset += 3; |
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$info['ogg']['pageheader']['theora']['resolution_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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$filedataoffset += 3; |
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$info['ogg']['pageheader']['theora']['picture_offset_x'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['picture_offset_y'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['frame_rate_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader']['theora']['frame_rate_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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$filedataoffset += 3; |
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$info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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$filedataoffset += 3; |
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$info['ogg']['pageheader']['theora']['color_space_id'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 1)); |
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$filedataoffset += 1; |
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$info['ogg']['pageheader']['theora']['nominal_bitrate'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 3)); |
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$filedataoffset += 3; |
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$info['ogg']['pageheader']['theora']['flags'] = getid3_lib::BigEndian2Int(substr($filedata, $filedataoffset, 2)); |
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$filedataoffset += 2; |
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$info['ogg']['pageheader']['theora']['quality'] = ($info['ogg']['pageheader']['theora']['flags'] & 0xFC00) >> 10; |
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$info['ogg']['pageheader']['theora']['kfg_shift'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x03E0) >> 5; |
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$info['ogg']['pageheader']['theora']['pixel_format_id'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0018) >> 3; |
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$info['ogg']['pageheader']['theora']['reserved'] = ($info['ogg']['pageheader']['theora']['flags'] & 0x0007) >> 0; // should be 0 |
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$info['ogg']['pageheader']['theora']['color_space'] = self::TheoraColorSpace($info['ogg']['pageheader']['theora']['color_space_id']); |
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$info['ogg']['pageheader']['theora']['pixel_format'] = self::TheoraPixelFormat($info['ogg']['pageheader']['theora']['pixel_format_id']); |
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$info['video']['dataformat'] = 'theora'; |
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$info['mime_type'] = 'video/ogg'; |
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//$info['audio']['bitrate_mode'] = 'abr'; |
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//$info['audio']['lossless'] = false; |
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$info['video']['resolution_x'] = $info['ogg']['pageheader']['theora']['resolution_x']; |
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$info['video']['resolution_y'] = $info['ogg']['pageheader']['theora']['resolution_y']; |
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View Code Duplication |
if ($info['ogg']['pageheader']['theora']['frame_rate_denominator'] > 0) { |
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$info['video']['frame_rate'] = (float) $info['ogg']['pageheader']['theora']['frame_rate_numerator'] / $info['ogg']['pageheader']['theora']['frame_rate_denominator']; |
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} |
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View Code Duplication |
if ($info['ogg']['pageheader']['theora']['pixel_aspect_denominator'] > 0) { |
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$info['video']['pixel_aspect_ratio'] = (float) $info['ogg']['pageheader']['theora']['pixel_aspect_numerator'] / $info['ogg']['pageheader']['theora']['pixel_aspect_denominator']; |
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} |
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$info['warning'][] = 'Ogg Theora (v3) not fully supported in this version of getID3 ['.$this->getid3->version().'] -- bitrate, playtime and all audio data are currently unavailable'; |
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} elseif (substr($filedata, 0, 8) == "fishead\x00") { |
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187
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// Ogg Skeleton version 3.0 Format Specification |
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// http://xiph.org/ogg/doc/skeleton.html |
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$filedataoffset += 8; |
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$info['ogg']['skeleton']['fishead']['raw']['version_major'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
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$filedataoffset += 2; |
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$info['ogg']['skeleton']['fishead']['raw']['version_minor'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
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$filedataoffset += 2; |
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$info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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$filedataoffset += 8; |
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$info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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$filedataoffset += 8; |
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$info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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$filedataoffset += 8; |
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$info['ogg']['skeleton']['fishead']['raw']['basetime_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
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$filedataoffset += 8; |
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$info['ogg']['skeleton']['fishead']['raw']['utc'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 20)); |
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$filedataoffset += 20; |
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$info['ogg']['skeleton']['fishead']['version'] = $info['ogg']['skeleton']['fishead']['raw']['version_major'].'.'.$info['ogg']['skeleton']['fishead']['raw']['version_minor']; |
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$info['ogg']['skeleton']['fishead']['presentationtime'] = $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator']; |
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$info['ogg']['skeleton']['fishead']['basetime'] = $info['ogg']['skeleton']['fishead']['raw']['basetime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['basetime_denominator']; |
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$info['ogg']['skeleton']['fishead']['utc'] = $info['ogg']['skeleton']['fishead']['raw']['utc']; |
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$counter = 0; |
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do { |
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$oggpageinfo = $this->ParseOggPageHeader(); |
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$info['ogg']['pageheader'][$oggpageinfo['page_seqno'].'.'.$counter++] = $oggpageinfo; |
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$filedata = $this->fread($oggpageinfo['page_length']); |
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$this->fseek($oggpageinfo['page_end_offset']); |
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if (substr($filedata, 0, 8) == "fisbone\x00") { |
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$filedataoffset = 8; |
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$info['ogg']['skeleton']['fisbone']['raw']['message_header_offset'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['skeleton']['fisbone']['raw']['serial_number'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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$info['ogg']['skeleton']['fisbone']['raw']['number_header_packets'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
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$filedataoffset += 4; |
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227
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['granulerate_numerator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
|
228
|
|
|
$filedataoffset += 8; |
|
229
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['granulerate_denominator'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
|
230
|
|
|
$filedataoffset += 8; |
|
231
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['basegranule'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
|
232
|
|
|
$filedataoffset += 8; |
|
233
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['preroll'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
234
|
|
|
$filedataoffset += 4; |
|
235
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['granuleshift'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
236
|
|
|
$filedataoffset += 1; |
|
237
|
|
|
$info['ogg']['skeleton']['fisbone']['raw']['padding'] = substr($filedata, $filedataoffset, 3); |
|
238
|
|
|
$filedataoffset += 3; |
|
239
|
|
|
|
|
240
|
|
|
} elseif (substr($filedata, 1, 6) == 'theora') { |
|
241
|
|
|
|
|
242
|
|
|
$info['video']['dataformat'] = 'theora1'; |
|
243
|
|
|
$info['error'][] = 'Ogg Theora (v1) not correctly handled in this version of getID3 ['.$this->getid3->version().']'; |
|
244
|
|
|
//break; |
|
245
|
|
|
|
|
246
|
|
|
} elseif (substr($filedata, 1, 6) == 'vorbis') { |
|
247
|
|
|
|
|
248
|
|
|
$this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); |
|
249
|
|
|
|
|
250
|
|
|
} else { |
|
251
|
|
|
$info['error'][] = 'unexpected'; |
|
252
|
|
|
//break; |
|
253
|
|
|
} |
|
254
|
|
|
//} while ($oggpageinfo['page_seqno'] == 0); |
|
255
|
|
|
} while (($oggpageinfo['page_seqno'] == 0) && (substr($filedata, 0, 8) != "fisbone\x00")); |
|
256
|
|
|
|
|
257
|
|
|
$this->fseek($oggpageinfo['page_start_offset']); |
|
258
|
|
|
|
|
259
|
|
|
$info['error'][] = 'Ogg Skeleton not correctly handled in this version of getID3 ['.$this->getid3->version().']'; |
|
260
|
|
|
//return false; |
|
261
|
|
|
|
|
262
|
|
|
} else { |
|
263
|
|
|
|
|
264
|
|
|
$info['error'][] = 'Expecting either "Speex ", "OpusHead" or "vorbis" identifier strings, found "'.substr($filedata, 0, 8).'"'; |
|
265
|
|
|
unset($info['ogg']); |
|
266
|
|
|
unset($info['mime_type']); |
|
267
|
|
|
return false; |
|
268
|
|
|
|
|
269
|
|
|
} |
|
270
|
|
|
|
|
271
|
|
|
// Page 2 - Comment Header |
|
272
|
|
|
$oggpageinfo = $this->ParseOggPageHeader(); |
|
273
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
|
274
|
|
|
|
|
275
|
|
|
switch ($info['audio']['dataformat']) { |
|
276
|
|
|
case 'vorbis': |
|
277
|
|
|
$filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
|
278
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, 0, 1)); |
|
279
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6); // hard-coded to 'vorbis' |
|
280
|
|
|
|
|
281
|
|
|
$this->ParseVorbisComments(); |
|
282
|
|
|
break; |
|
283
|
|
|
|
|
284
|
|
|
case 'flac': |
|
285
|
|
|
$flac = new getid3_flac($this->getid3); |
|
286
|
|
|
if (!$flac->parseMETAdata()) { |
|
287
|
|
|
$info['error'][] = 'Failed to parse FLAC headers'; |
|
288
|
|
|
return false; |
|
289
|
|
|
} |
|
290
|
|
|
unset($flac); |
|
291
|
|
|
break; |
|
292
|
|
|
|
|
293
|
|
|
case 'speex': |
|
294
|
|
|
$this->fseek($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); |
|
295
|
|
|
$this->ParseVorbisComments(); |
|
296
|
|
|
break; |
|
297
|
|
|
|
|
298
|
|
|
case 'opus': |
|
299
|
|
|
$filedata = $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
|
300
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 0, 8); // hard-coded to 'OpusTags' |
|
301
|
|
|
if(substr($filedata, 0, 8) != 'OpusTags') { |
|
302
|
|
|
$info['error'][] = 'Expected "OpusTags" as header but got "'.substr($filedata, 0, 8).'"'; |
|
303
|
|
|
return false; |
|
304
|
|
|
} |
|
305
|
|
|
|
|
306
|
|
|
$this->ParseVorbisComments(); |
|
307
|
|
|
break; |
|
308
|
|
|
|
|
309
|
|
|
} |
|
310
|
|
|
|
|
311
|
|
|
// Last Page - Number of Samples |
|
312
|
|
|
if (!getid3_lib::intValueSupported($info['avdataend'])) { |
|
313
|
|
|
|
|
314
|
|
|
$info['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond '.round(PHP_INT_MAX / 1073741824).'GB)'; |
|
315
|
|
|
|
|
316
|
|
|
} else { |
|
317
|
|
|
|
|
318
|
|
|
$this->fseek(max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0)); |
|
319
|
|
|
$LastChunkOfOgg = strrev($this->fread($this->getid3->fread_buffer_size())); |
|
320
|
|
|
if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { |
|
321
|
|
|
$this->fseek($info['avdataend'] - ($LastOggSpostion + strlen('SggO'))); |
|
322
|
|
|
$info['avdataend'] = $this->ftell(); |
|
323
|
|
|
$info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader(); |
|
324
|
|
|
$info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position']; |
|
325
|
|
|
if ($info['ogg']['samples'] == 0) { |
|
326
|
|
|
$info['error'][] = 'Corrupt Ogg file: eos.number of samples == zero'; |
|
327
|
|
|
return false; |
|
328
|
|
|
} |
|
329
|
|
|
if (!empty($info['audio']['sample_rate'])) { |
|
330
|
|
|
$info['ogg']['bitrate_average'] = (($info['avdataend'] - $info['avdataoffset']) * 8) / ($info['ogg']['samples'] / $info['audio']['sample_rate']); |
|
331
|
|
|
} |
|
332
|
|
|
} |
|
333
|
|
|
|
|
334
|
|
|
} |
|
335
|
|
|
|
|
336
|
|
|
if (!empty($info['ogg']['bitrate_average'])) { |
|
337
|
|
|
$info['audio']['bitrate'] = $info['ogg']['bitrate_average']; |
|
338
|
|
|
} elseif (!empty($info['ogg']['bitrate_nominal'])) { |
|
339
|
|
|
$info['audio']['bitrate'] = $info['ogg']['bitrate_nominal']; |
|
340
|
|
|
} elseif (!empty($info['ogg']['bitrate_min']) && !empty($info['ogg']['bitrate_max'])) { |
|
341
|
|
|
$info['audio']['bitrate'] = ($info['ogg']['bitrate_min'] + $info['ogg']['bitrate_max']) / 2; |
|
342
|
|
|
} |
|
343
|
|
|
if (isset($info['audio']['bitrate']) && !isset($info['playtime_seconds'])) { |
|
344
|
|
|
if ($info['audio']['bitrate'] == 0) { |
|
345
|
|
|
$info['error'][] = 'Corrupt Ogg file: bitrate_audio == zero'; |
|
346
|
|
|
return false; |
|
347
|
|
|
} |
|
348
|
|
|
$info['playtime_seconds'] = (float) ((($info['avdataend'] - $info['avdataoffset']) * 8) / $info['audio']['bitrate']); |
|
349
|
|
|
} |
|
350
|
|
|
|
|
351
|
|
|
if (isset($info['ogg']['vendor'])) { |
|
352
|
|
|
$info['audio']['encoder'] = preg_replace('/^Encoded with /', '', $info['ogg']['vendor']); |
|
353
|
|
|
|
|
354
|
|
|
// Vorbis only |
|
355
|
|
|
if ($info['audio']['dataformat'] == 'vorbis') { |
|
356
|
|
|
|
|
357
|
|
|
// Vorbis 1.0 starts with Xiph.Org |
|
358
|
|
|
if (preg_match('/^Xiph.Org/', $info['audio']['encoder'])) { |
|
359
|
|
|
|
|
360
|
|
|
if ($info['audio']['bitrate_mode'] == 'abr') { |
|
361
|
|
|
|
|
362
|
|
|
// Set -b 128 on abr files |
|
363
|
|
|
$info['audio']['encoder_options'] = '-b '.round($info['ogg']['bitrate_nominal'] / 1000); |
|
364
|
|
|
|
|
365
|
|
|
} elseif (($info['audio']['bitrate_mode'] == 'vbr') && ($info['audio']['channels'] == 2) && ($info['audio']['sample_rate'] >= 44100) && ($info['audio']['sample_rate'] <= 48000)) { |
|
366
|
|
|
// Set -q N on vbr files |
|
367
|
|
|
$info['audio']['encoder_options'] = '-q '.$this->get_quality_from_nominal_bitrate($info['ogg']['bitrate_nominal']); |
|
368
|
|
|
|
|
369
|
|
|
} |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
if (empty($info['audio']['encoder_options']) && !empty($info['ogg']['bitrate_nominal'])) { |
|
373
|
|
|
$info['audio']['encoder_options'] = 'Nominal bitrate: '.intval(round($info['ogg']['bitrate_nominal'] / 1000)).'kbps'; |
|
374
|
|
|
} |
|
375
|
|
|
} |
|
376
|
|
|
} |
|
377
|
|
|
|
|
378
|
|
|
return true; |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
public function ParseVorbisPageHeader(&$filedata, &$filedataoffset, &$oggpageinfo) { |
|
382
|
|
|
$info = &$this->getid3->info; |
|
383
|
|
|
$info['audio']['dataformat'] = 'vorbis'; |
|
384
|
|
|
$info['audio']['lossless'] = false; |
|
385
|
|
|
|
|
386
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
387
|
|
|
$filedataoffset += 1; |
|
388
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, $filedataoffset, 6); // hard-coded to 'vorbis' |
|
389
|
|
|
$filedataoffset += 6; |
|
390
|
|
|
$info['ogg']['bitstreamversion'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
391
|
|
|
$filedataoffset += 4; |
|
392
|
|
|
$info['ogg']['numberofchannels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
393
|
|
|
$filedataoffset += 1; |
|
394
|
|
|
$info['audio']['channels'] = $info['ogg']['numberofchannels']; |
|
395
|
|
|
$info['ogg']['samplerate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
396
|
|
|
$filedataoffset += 4; |
|
397
|
|
|
if ($info['ogg']['samplerate'] == 0) { |
|
398
|
|
|
$info['error'][] = 'Corrupt Ogg file: sample rate == zero'; |
|
399
|
|
|
return false; |
|
400
|
|
|
} |
|
401
|
|
|
$info['audio']['sample_rate'] = $info['ogg']['samplerate']; |
|
402
|
|
|
$info['ogg']['samples'] = 0; // filled in later |
|
403
|
|
|
$info['ogg']['bitrate_average'] = 0; // filled in later |
|
404
|
|
|
$info['ogg']['bitrate_max'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
405
|
|
|
$filedataoffset += 4; |
|
406
|
|
|
$info['ogg']['bitrate_nominal'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
407
|
|
|
$filedataoffset += 4; |
|
408
|
|
|
$info['ogg']['bitrate_min'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
409
|
|
|
$filedataoffset += 4; |
|
410
|
|
|
$info['ogg']['blocksize_small'] = pow(2, getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)) & 0x0F); |
|
411
|
|
|
$info['ogg']['blocksize_large'] = pow(2, (getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)) & 0xF0) >> 4); |
|
412
|
|
|
$info['ogg']['stop_bit'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); // must be 1, marks end of packet |
|
413
|
|
|
|
|
414
|
|
|
$info['audio']['bitrate_mode'] = 'vbr'; // overridden if actually abr |
|
415
|
|
View Code Duplication |
if ($info['ogg']['bitrate_max'] == 0xFFFFFFFF) { |
|
416
|
|
|
unset($info['ogg']['bitrate_max']); |
|
417
|
|
|
$info['audio']['bitrate_mode'] = 'abr'; |
|
418
|
|
|
} |
|
419
|
|
|
if ($info['ogg']['bitrate_nominal'] == 0xFFFFFFFF) { |
|
420
|
|
|
unset($info['ogg']['bitrate_nominal']); |
|
421
|
|
|
} |
|
422
|
|
View Code Duplication |
if ($info['ogg']['bitrate_min'] == 0xFFFFFFFF) { |
|
423
|
|
|
unset($info['ogg']['bitrate_min']); |
|
424
|
|
|
$info['audio']['bitrate_mode'] = 'abr'; |
|
425
|
|
|
} |
|
426
|
|
|
return true; |
|
427
|
|
|
} |
|
428
|
|
|
|
|
429
|
|
|
// http://tools.ietf.org/html/draft-ietf-codec-oggopus-03 |
|
430
|
|
|
public function ParseOpusPageHeader(&$filedata, &$filedataoffset, &$oggpageinfo) { |
|
|
|
|
|
|
431
|
|
|
$info = &$this->getid3->info; |
|
432
|
|
|
$info['audio']['dataformat'] = 'opus'; |
|
433
|
|
|
$info['mime_type'] = 'audio/ogg; codecs=opus'; |
|
434
|
|
|
|
|
435
|
|
|
/** @todo find a usable way to detect abr (vbr that is padded to be abr) */ |
|
436
|
|
|
$info['audio']['bitrate_mode'] = 'vbr'; |
|
437
|
|
|
|
|
438
|
|
|
$info['audio']['lossless'] = false; |
|
439
|
|
|
|
|
440
|
|
|
$info['ogg']['pageheader']['opus']['opus_magic'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'OpusHead' |
|
441
|
|
|
$filedataoffset += 8; |
|
442
|
|
|
$info['ogg']['pageheader']['opus']['version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
443
|
|
|
$filedataoffset += 1; |
|
444
|
|
|
|
|
445
|
|
|
if ($info['ogg']['pageheader']['opus']['version'] < 1 || $info['ogg']['pageheader']['opus']['version'] > 15) { |
|
446
|
|
|
$info['error'][] = 'Unknown opus version number (only accepting 1-15)'; |
|
447
|
|
|
return false; |
|
448
|
|
|
} |
|
449
|
|
|
|
|
450
|
|
|
$info['ogg']['pageheader']['opus']['out_channel_count'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
451
|
|
|
$filedataoffset += 1; |
|
452
|
|
|
|
|
453
|
|
|
if ($info['ogg']['pageheader']['opus']['out_channel_count'] == 0) { |
|
454
|
|
|
$info['error'][] = 'Invalid channel count in opus header (must not be zero)'; |
|
455
|
|
|
return false; |
|
456
|
|
|
} |
|
457
|
|
|
|
|
458
|
|
|
$info['ogg']['pageheader']['opus']['pre_skip'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
|
459
|
|
|
$filedataoffset += 2; |
|
460
|
|
|
|
|
461
|
|
|
$info['ogg']['pageheader']['opus']['sample_rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
462
|
|
|
$filedataoffset += 4; |
|
463
|
|
|
|
|
464
|
|
|
//$info['ogg']['pageheader']['opus']['output_gain'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 2)); |
|
465
|
|
|
//$filedataoffset += 2; |
|
466
|
|
|
|
|
467
|
|
|
//$info['ogg']['pageheader']['opus']['channel_mapping_family'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
468
|
|
|
//$filedataoffset += 1; |
|
469
|
|
|
|
|
470
|
|
|
$info['opus']['opus_version'] = $info['ogg']['pageheader']['opus']['version']; |
|
471
|
|
|
$info['opus']['sample_rate'] = $info['ogg']['pageheader']['opus']['sample_rate']; |
|
472
|
|
|
$info['opus']['out_channel_count'] = $info['ogg']['pageheader']['opus']['out_channel_count']; |
|
473
|
|
|
|
|
474
|
|
|
$info['audio']['channels'] = $info['opus']['out_channel_count']; |
|
475
|
|
|
$info['audio']['sample_rate'] = $info['opus']['sample_rate']; |
|
476
|
|
|
return true; |
|
477
|
|
|
} |
|
478
|
|
|
|
|
479
|
|
|
|
|
480
|
|
|
public function ParseOggPageHeader() { |
|
481
|
|
|
// http://xiph.org/ogg/vorbis/doc/framing.html |
|
482
|
|
|
$oggheader['page_start_offset'] = $this->ftell(); // where we started from in the file |
|
|
|
|
|
|
483
|
|
|
|
|
484
|
|
|
$filedata = $this->fread($this->getid3->fread_buffer_size()); |
|
485
|
|
|
$filedataoffset = 0; |
|
486
|
|
|
while ((substr($filedata, $filedataoffset++, 4) != 'OggS')) { |
|
487
|
|
|
if (($this->ftell() - $oggheader['page_start_offset']) >= $this->getid3->fread_buffer_size()) { |
|
488
|
|
|
// should be found before here |
|
489
|
|
|
return false; |
|
490
|
|
|
} |
|
491
|
|
|
if ((($filedataoffset + 28) > strlen($filedata)) || (strlen($filedata) < 28)) { |
|
492
|
|
|
if ($this->feof() || (($filedata .= $this->fread($this->getid3->fread_buffer_size())) === false)) { |
|
493
|
|
|
// get some more data, unless eof, in which case fail |
|
494
|
|
|
return false; |
|
495
|
|
|
} |
|
496
|
|
|
} |
|
497
|
|
|
} |
|
498
|
|
|
$filedataoffset += strlen('OggS') - 1; // page, delimited by 'OggS' |
|
499
|
|
|
|
|
500
|
|
|
$oggheader['stream_structver'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
501
|
|
|
$filedataoffset += 1; |
|
502
|
|
|
$oggheader['flags_raw'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
503
|
|
|
$filedataoffset += 1; |
|
504
|
|
|
$oggheader['flags']['fresh'] = (bool) ($oggheader['flags_raw'] & 0x01); // fresh packet |
|
505
|
|
|
$oggheader['flags']['bos'] = (bool) ($oggheader['flags_raw'] & 0x02); // first page of logical bitstream (bos) |
|
506
|
|
|
$oggheader['flags']['eos'] = (bool) ($oggheader['flags_raw'] & 0x04); // last page of logical bitstream (eos) |
|
507
|
|
|
|
|
508
|
|
|
$oggheader['pcm_abs_position'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 8)); |
|
509
|
|
|
$filedataoffset += 8; |
|
510
|
|
|
$oggheader['stream_serialno'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
511
|
|
|
$filedataoffset += 4; |
|
512
|
|
|
$oggheader['page_seqno'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
513
|
|
|
$filedataoffset += 4; |
|
514
|
|
|
$oggheader['page_checksum'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); |
|
515
|
|
|
$filedataoffset += 4; |
|
516
|
|
|
$oggheader['page_segments'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
517
|
|
|
$filedataoffset += 1; |
|
518
|
|
|
$oggheader['page_length'] = 0; |
|
519
|
|
|
for ($i = 0; $i < $oggheader['page_segments']; $i++) { |
|
520
|
|
|
$oggheader['segment_table'][$i] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 1)); |
|
521
|
|
|
$filedataoffset += 1; |
|
522
|
|
|
$oggheader['page_length'] += $oggheader['segment_table'][$i]; |
|
523
|
|
|
} |
|
524
|
|
|
$oggheader['header_end_offset'] = $oggheader['page_start_offset'] + $filedataoffset; |
|
525
|
|
|
$oggheader['page_end_offset'] = $oggheader['header_end_offset'] + $oggheader['page_length']; |
|
526
|
|
|
$this->fseek($oggheader['header_end_offset']); |
|
527
|
|
|
|
|
528
|
|
|
return $oggheader; |
|
529
|
|
|
} |
|
530
|
|
|
|
|
531
|
|
|
// http://xiph.org/vorbis/doc/Vorbis_I_spec.html#x1-810005 |
|
532
|
|
|
public function ParseVorbisComments() { |
|
533
|
|
|
$info = &$this->getid3->info; |
|
534
|
|
|
|
|
535
|
|
|
$OriginalOffset = $this->ftell(); |
|
536
|
|
|
$commentdataoffset = 0; |
|
537
|
|
|
$VorbisCommentPage = 1; |
|
538
|
|
|
|
|
539
|
|
|
switch ($info['audio']['dataformat']) { |
|
540
|
|
|
case 'vorbis': |
|
541
|
|
|
case 'speex': |
|
542
|
|
|
case 'opus': |
|
543
|
|
|
$CommentStartOffset = $info['ogg']['pageheader'][$VorbisCommentPage]['page_start_offset']; // Second Ogg page, after header block |
|
544
|
|
|
$this->fseek($CommentStartOffset); |
|
545
|
|
|
$commentdataoffset = 27 + $info['ogg']['pageheader'][$VorbisCommentPage]['page_segments']; |
|
546
|
|
|
$commentdata = $this->fread(self::OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1) + $commentdataoffset); |
|
547
|
|
|
|
|
548
|
|
|
if ($info['audio']['dataformat'] == 'vorbis') { |
|
549
|
|
|
$commentdataoffset += (strlen('vorbis') + 1); |
|
550
|
|
|
} |
|
551
|
|
|
else if ($info['audio']['dataformat'] == 'opus') { |
|
552
|
|
|
$commentdataoffset += strlen('OpusTags'); |
|
553
|
|
|
} |
|
554
|
|
|
|
|
555
|
|
|
break; |
|
556
|
|
|
|
|
557
|
|
|
case 'flac': |
|
558
|
|
|
$CommentStartOffset = $info['flac']['VORBIS_COMMENT']['raw']['offset'] + 4; |
|
559
|
|
|
$this->fseek($CommentStartOffset); |
|
560
|
|
|
$commentdata = $this->fread($info['flac']['VORBIS_COMMENT']['raw']['block_length']); |
|
561
|
|
|
break; |
|
562
|
|
|
|
|
563
|
|
|
default: |
|
564
|
|
|
return false; |
|
565
|
|
|
} |
|
566
|
|
|
|
|
567
|
|
|
$VendorSize = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); |
|
568
|
|
|
$commentdataoffset += 4; |
|
569
|
|
|
|
|
570
|
|
|
$info['ogg']['vendor'] = substr($commentdata, $commentdataoffset, $VendorSize); |
|
571
|
|
|
$commentdataoffset += $VendorSize; |
|
572
|
|
|
|
|
573
|
|
|
$CommentsCount = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); |
|
574
|
|
|
$commentdataoffset += 4; |
|
575
|
|
|
$info['avdataoffset'] = $CommentStartOffset + $commentdataoffset; |
|
576
|
|
|
|
|
577
|
|
|
$basicfields = array('TITLE', 'ARTIST', 'ALBUM', 'TRACKNUMBER', 'GENRE', 'DATE', 'DESCRIPTION', 'COMMENT'); |
|
578
|
|
|
$ThisFileInfo_ogg_comments_raw = &$info['ogg']['comments_raw']; |
|
579
|
|
|
for ($i = 0; $i < $CommentsCount; $i++) { |
|
580
|
|
|
|
|
581
|
|
|
if ($i >= 10000) { |
|
582
|
|
|
// https://github.com/owncloud/music/issues/212#issuecomment-43082336 |
|
583
|
|
|
$info['warning'][] = 'Unexpectedly large number ('.$CommentsCount.') of Ogg comments - breaking after reading '.$i.' comments'; |
|
584
|
|
|
break; |
|
585
|
|
|
} |
|
586
|
|
|
|
|
587
|
|
|
$ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] = $CommentStartOffset + $commentdataoffset; |
|
588
|
|
|
|
|
589
|
|
|
if ($this->ftell() < ($ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] + 4)) { |
|
590
|
|
|
if ($oggpageinfo = $this->ParseOggPageHeader()) { |
|
591
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
|
592
|
|
|
|
|
593
|
|
|
$VorbisCommentPage++; |
|
594
|
|
|
|
|
595
|
|
|
// First, save what we haven't read yet |
|
596
|
|
|
$AsYetUnusedData = substr($commentdata, $commentdataoffset); |
|
597
|
|
|
|
|
598
|
|
|
// Then take that data off the end |
|
599
|
|
|
$commentdata = substr($commentdata, 0, $commentdataoffset); |
|
600
|
|
|
|
|
601
|
|
|
// Add [headerlength] bytes of dummy data for the Ogg Page Header, just to keep absolute offsets correct |
|
602
|
|
|
$commentdata .= str_repeat("\x00", 27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); |
|
603
|
|
|
$commentdataoffset += (27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); |
|
604
|
|
|
|
|
605
|
|
|
// Finally, stick the unused data back on the end |
|
606
|
|
|
$commentdata .= $AsYetUnusedData; |
|
607
|
|
|
|
|
608
|
|
|
//$commentdata .= $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
|
609
|
|
|
$commentdata .= $this->fread($this->OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1)); |
|
610
|
|
|
} |
|
611
|
|
|
|
|
612
|
|
|
} |
|
613
|
|
|
$ThisFileInfo_ogg_comments_raw[$i]['size'] = getid3_lib::LittleEndian2Int(substr($commentdata, $commentdataoffset, 4)); |
|
614
|
|
|
|
|
615
|
|
|
// replace avdataoffset with position just after the last vorbiscomment |
|
616
|
|
|
$info['avdataoffset'] = $ThisFileInfo_ogg_comments_raw[$i]['dataoffset'] + $ThisFileInfo_ogg_comments_raw[$i]['size'] + 4; |
|
617
|
|
|
|
|
618
|
|
|
$commentdataoffset += 4; |
|
619
|
|
|
while ((strlen($commentdata) - $commentdataoffset) < $ThisFileInfo_ogg_comments_raw[$i]['size']) { |
|
620
|
|
|
if (($ThisFileInfo_ogg_comments_raw[$i]['size'] > $info['avdataend']) || ($ThisFileInfo_ogg_comments_raw[$i]['size'] < 0)) { |
|
621
|
|
|
$info['warning'][] = 'Invalid Ogg comment size (comment #'.$i.', claims to be '.number_format($ThisFileInfo_ogg_comments_raw[$i]['size']).' bytes) - aborting reading comments'; |
|
622
|
|
|
break 2; |
|
623
|
|
|
} |
|
624
|
|
|
|
|
625
|
|
|
$VorbisCommentPage++; |
|
626
|
|
|
|
|
627
|
|
|
$oggpageinfo = $this->ParseOggPageHeader(); |
|
628
|
|
|
$info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; |
|
629
|
|
|
|
|
630
|
|
|
// First, save what we haven't read yet |
|
631
|
|
|
$AsYetUnusedData = substr($commentdata, $commentdataoffset); |
|
632
|
|
|
|
|
633
|
|
|
// Then take that data off the end |
|
634
|
|
|
$commentdata = substr($commentdata, 0, $commentdataoffset); |
|
635
|
|
|
|
|
636
|
|
|
// Add [headerlength] bytes of dummy data for the Ogg Page Header, just to keep absolute offsets correct |
|
637
|
|
|
$commentdata .= str_repeat("\x00", 27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); |
|
638
|
|
|
$commentdataoffset += (27 + $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_segments']); |
|
639
|
|
|
|
|
640
|
|
|
// Finally, stick the unused data back on the end |
|
641
|
|
|
$commentdata .= $AsYetUnusedData; |
|
642
|
|
|
|
|
643
|
|
|
//$commentdata .= $this->fread($info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); |
|
644
|
|
|
if (!isset($info['ogg']['pageheader'][$VorbisCommentPage])) { |
|
645
|
|
|
$info['warning'][] = 'undefined Vorbis Comment page "'.$VorbisCommentPage.'" at offset '.$this->ftell(); |
|
646
|
|
|
break; |
|
647
|
|
|
} |
|
648
|
|
|
$readlength = self::OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1); |
|
649
|
|
|
if ($readlength <= 0) { |
|
650
|
|
|
$info['warning'][] = 'invalid length Vorbis Comment page "'.$VorbisCommentPage.'" at offset '.$this->ftell(); |
|
651
|
|
|
break; |
|
652
|
|
|
} |
|
653
|
|
|
$commentdata .= $this->fread($readlength); |
|
654
|
|
|
|
|
655
|
|
|
//$filebaseoffset += $oggpageinfo['header_end_offset'] - $oggpageinfo['page_start_offset']; |
|
656
|
|
|
} |
|
657
|
|
|
$ThisFileInfo_ogg_comments_raw[$i]['offset'] = $commentdataoffset; |
|
658
|
|
|
$commentstring = substr($commentdata, $commentdataoffset, $ThisFileInfo_ogg_comments_raw[$i]['size']); |
|
659
|
|
|
$commentdataoffset += $ThisFileInfo_ogg_comments_raw[$i]['size']; |
|
660
|
|
|
|
|
661
|
|
|
if (!$commentstring) { |
|
662
|
|
|
|
|
663
|
|
|
// no comment? |
|
664
|
|
|
$info['warning'][] = 'Blank Ogg comment ['.$i.']'; |
|
665
|
|
|
|
|
666
|
|
|
} elseif (strstr($commentstring, '=')) { |
|
667
|
|
|
|
|
668
|
|
|
$commentexploded = explode('=', $commentstring, 2); |
|
669
|
|
|
$ThisFileInfo_ogg_comments_raw[$i]['key'] = strtoupper($commentexploded[0]); |
|
670
|
|
|
$ThisFileInfo_ogg_comments_raw[$i]['value'] = (isset($commentexploded[1]) ? $commentexploded[1] : ''); |
|
671
|
|
|
|
|
672
|
|
|
if ($ThisFileInfo_ogg_comments_raw[$i]['key'] == 'METADATA_BLOCK_PICTURE') { |
|
673
|
|
|
|
|
674
|
|
|
// http://wiki.xiph.org/VorbisComment#METADATA_BLOCK_PICTURE |
|
675
|
|
|
// 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. |
|
676
|
|
|
// http://flac.sourceforge.net/format.html#metadata_block_picture |
|
677
|
|
|
$flac = new getid3_flac($this->getid3); |
|
678
|
|
|
$flac->setStringMode(base64_decode($ThisFileInfo_ogg_comments_raw[$i]['value'])); |
|
679
|
|
|
$flac->parsePICTURE(); |
|
680
|
|
|
$info['ogg']['comments']['picture'][] = $flac->getid3->info['flac']['PICTURE'][0]; |
|
|
|
|
|
|
681
|
|
|
unset($flac); |
|
682
|
|
|
|
|
683
|
|
|
} elseif ($ThisFileInfo_ogg_comments_raw[$i]['key'] == 'COVERART') { |
|
684
|
|
|
|
|
685
|
|
|
$data = base64_decode($ThisFileInfo_ogg_comments_raw[$i]['value']); |
|
686
|
|
|
$this->notice('Found deprecated COVERART tag, it should be replaced in honor of METADATA_BLOCK_PICTURE structure'); |
|
687
|
|
|
/** @todo use 'coverartmime' where available */ |
|
688
|
|
|
$imageinfo = getid3_lib::GetDataImageSize($data); |
|
689
|
|
|
if ($imageinfo === false || !isset($imageinfo['mime'])) { |
|
690
|
|
|
$this->warning('COVERART vorbiscomment tag contains invalid image'); |
|
691
|
|
|
continue; |
|
692
|
|
|
} |
|
693
|
|
|
|
|
694
|
|
|
$ogg = new self($this->getid3); |
|
695
|
|
|
$ogg->setStringMode($data); |
|
696
|
|
|
$info['ogg']['comments']['picture'][] = array( |
|
697
|
|
|
'image_mime' => $imageinfo['mime'], |
|
698
|
|
|
'datalength' => strlen($data), |
|
699
|
|
|
'picturetype' => 'cover art', |
|
700
|
|
|
'image_height' => $imageinfo['height'], |
|
701
|
|
|
'image_width' => $imageinfo['width'], |
|
702
|
|
|
'data' => $ogg->saveAttachment('coverart', 0, strlen($data), $imageinfo['mime']), |
|
703
|
|
|
); |
|
704
|
|
|
unset($ogg); |
|
705
|
|
|
|
|
706
|
|
|
} else { |
|
707
|
|
|
|
|
708
|
|
|
$info['ogg']['comments'][strtolower($ThisFileInfo_ogg_comments_raw[$i]['key'])][] = $ThisFileInfo_ogg_comments_raw[$i]['value']; |
|
709
|
|
|
|
|
710
|
|
|
} |
|
711
|
|
|
|
|
712
|
|
|
} else { |
|
713
|
|
|
|
|
714
|
|
|
$info['warning'][] = '[known problem with CDex >= v1.40, < v1.50b7] Invalid Ogg comment name/value pair ['.$i.']: '.$commentstring; |
|
715
|
|
|
|
|
716
|
|
|
} |
|
717
|
|
|
unset($ThisFileInfo_ogg_comments_raw[$i]); |
|
718
|
|
|
} |
|
719
|
|
|
unset($ThisFileInfo_ogg_comments_raw); |
|
720
|
|
|
|
|
721
|
|
|
|
|
722
|
|
|
// Replay Gain Adjustment |
|
723
|
|
|
// http://privatewww.essex.ac.uk/~djmrob/replaygain/ |
|
724
|
|
|
if (isset($info['ogg']['comments']) && is_array($info['ogg']['comments'])) { |
|
725
|
|
|
foreach ($info['ogg']['comments'] as $index => $commentvalue) { |
|
726
|
|
|
switch ($index) { |
|
727
|
|
|
case 'rg_audiophile': |
|
728
|
|
View Code Duplication |
case 'replaygain_album_gain': |
|
729
|
|
|
$info['replay_gain']['album']['adjustment'] = (double) $commentvalue[0]; |
|
730
|
|
|
unset($info['ogg']['comments'][$index]); |
|
731
|
|
|
break; |
|
732
|
|
|
|
|
733
|
|
|
case 'rg_radio': |
|
734
|
|
View Code Duplication |
case 'replaygain_track_gain': |
|
735
|
|
|
$info['replay_gain']['track']['adjustment'] = (double) $commentvalue[0]; |
|
736
|
|
|
unset($info['ogg']['comments'][$index]); |
|
737
|
|
|
break; |
|
738
|
|
|
|
|
739
|
|
View Code Duplication |
case 'replaygain_album_peak': |
|
740
|
|
|
$info['replay_gain']['album']['peak'] = (double) $commentvalue[0]; |
|
741
|
|
|
unset($info['ogg']['comments'][$index]); |
|
742
|
|
|
break; |
|
743
|
|
|
|
|
744
|
|
|
case 'rg_peak': |
|
745
|
|
View Code Duplication |
case 'replaygain_track_peak': |
|
746
|
|
|
$info['replay_gain']['track']['peak'] = (double) $commentvalue[0]; |
|
747
|
|
|
unset($info['ogg']['comments'][$index]); |
|
748
|
|
|
break; |
|
749
|
|
|
|
|
750
|
|
View Code Duplication |
case 'replaygain_reference_loudness': |
|
751
|
|
|
$info['replay_gain']['reference_volume'] = (double) $commentvalue[0]; |
|
752
|
|
|
unset($info['ogg']['comments'][$index]); |
|
753
|
|
|
break; |
|
754
|
|
|
|
|
755
|
|
|
default: |
|
756
|
|
|
// do nothing |
|
757
|
|
|
break; |
|
758
|
|
|
} |
|
759
|
|
|
} |
|
760
|
|
|
} |
|
761
|
|
|
|
|
762
|
|
|
$this->fseek($OriginalOffset); |
|
763
|
|
|
|
|
764
|
|
|
return true; |
|
765
|
|
|
} |
|
766
|
|
|
|
|
767
|
|
View Code Duplication |
public static function SpeexBandModeLookup($mode) { |
|
|
|
|
|
|
768
|
|
|
static $SpeexBandModeLookup = array(); |
|
769
|
|
|
if (empty($SpeexBandModeLookup)) { |
|
770
|
|
|
$SpeexBandModeLookup[0] = 'narrow'; |
|
771
|
|
|
$SpeexBandModeLookup[1] = 'wide'; |
|
772
|
|
|
$SpeexBandModeLookup[2] = 'ultra-wide'; |
|
773
|
|
|
} |
|
774
|
|
|
return (isset($SpeexBandModeLookup[$mode]) ? $SpeexBandModeLookup[$mode] : null); |
|
775
|
|
|
} |
|
776
|
|
|
|
|
777
|
|
|
|
|
778
|
|
|
public static function OggPageSegmentLength($OggInfoArray, $SegmentNumber=1) { |
|
779
|
|
|
for ($i = 0; $i < $SegmentNumber; $i++) { |
|
780
|
|
|
$segmentlength = 0; |
|
781
|
|
|
foreach ($OggInfoArray['segment_table'] as $key => $value) { |
|
782
|
|
|
$segmentlength += $value; |
|
783
|
|
|
if ($value < 255) { |
|
784
|
|
|
break; |
|
785
|
|
|
} |
|
786
|
|
|
} |
|
787
|
|
|
} |
|
788
|
|
|
return $segmentlength; |
|
|
|
|
|
|
789
|
|
|
} |
|
790
|
|
|
|
|
791
|
|
|
|
|
792
|
|
|
public static function get_quality_from_nominal_bitrate($nominal_bitrate) { |
|
793
|
|
|
|
|
794
|
|
|
// decrease precision |
|
795
|
|
|
$nominal_bitrate = $nominal_bitrate / 1000; |
|
796
|
|
|
|
|
797
|
|
|
if ($nominal_bitrate < 128) { |
|
798
|
|
|
// q-1 to q4 |
|
799
|
|
|
$qval = ($nominal_bitrate - 64) / 16; |
|
800
|
|
|
} elseif ($nominal_bitrate < 256) { |
|
801
|
|
|
// q4 to q8 |
|
802
|
|
|
$qval = $nominal_bitrate / 32; |
|
803
|
|
|
} elseif ($nominal_bitrate < 320) { |
|
804
|
|
|
// q8 to q9 |
|
805
|
|
|
$qval = ($nominal_bitrate + 256) / 64; |
|
806
|
|
|
} else { |
|
807
|
|
|
// q9 to q10 |
|
808
|
|
|
$qval = ($nominal_bitrate + 1300) / 180; |
|
809
|
|
|
} |
|
810
|
|
|
//return $qval; // 5.031324 |
|
811
|
|
|
//return intval($qval); // 5 |
|
812
|
|
|
return round($qval, 1); // 5 or 4.9 |
|
813
|
|
|
} |
|
814
|
|
|
|
|
815
|
|
View Code Duplication |
public static function TheoraColorSpace($colorspace_id) { |
|
|
|
|
|
|
816
|
|
|
// http://www.theora.org/doc/Theora.pdf (table 6.3) |
|
817
|
|
|
static $TheoraColorSpaceLookup = array(); |
|
818
|
|
|
if (empty($TheoraColorSpaceLookup)) { |
|
819
|
|
|
$TheoraColorSpaceLookup[0] = 'Undefined'; |
|
820
|
|
|
$TheoraColorSpaceLookup[1] = 'Rec. 470M'; |
|
821
|
|
|
$TheoraColorSpaceLookup[2] = 'Rec. 470BG'; |
|
822
|
|
|
$TheoraColorSpaceLookup[3] = 'Reserved'; |
|
823
|
|
|
} |
|
824
|
|
|
return (isset($TheoraColorSpaceLookup[$colorspace_id]) ? $TheoraColorSpaceLookup[$colorspace_id] : null); |
|
825
|
|
|
} |
|
826
|
|
|
|
|
827
|
|
View Code Duplication |
public static function TheoraPixelFormat($pixelformat_id) { |
|
|
|
|
|
|
828
|
|
|
// http://www.theora.org/doc/Theora.pdf (table 6.4) |
|
829
|
|
|
static $TheoraPixelFormatLookup = array(); |
|
830
|
|
|
if (empty($TheoraPixelFormatLookup)) { |
|
831
|
|
|
$TheoraPixelFormatLookup[0] = '4:2:0'; |
|
832
|
|
|
$TheoraPixelFormatLookup[1] = 'Reserved'; |
|
833
|
|
|
$TheoraPixelFormatLookup[2] = '4:2:2'; |
|
834
|
|
|
$TheoraPixelFormatLookup[3] = '4:4:4'; |
|
835
|
|
|
} |
|
836
|
|
|
return (isset($TheoraPixelFormatLookup[$pixelformat_id]) ? $TheoraPixelFormatLookup[$pixelformat_id] : null); |
|
837
|
|
|
} |
|
838
|
|
|
|
|
839
|
|
|
} |
|
840
|
|
|
|
ntwb /
wordpress
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When comparing two booleans, it is generally considered safer to use the strict comparison operator.