public function ParseVorbisComments() { $info =& $this->getid3->info; $OriginalOffset = $this->ftell(); $commentdataoffset = 0; $VorbisCommentPage = 1; switch ($info['audio']['dataformat']) { case 'vorbis': case 'speex': $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; } 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++) { $ThisFileInfo_ogg_comments_raw[$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("", 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) { $info['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++; $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("", 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])) { $info['warning'][] = 'undefined Vorbis Comment page "' . $VorbisCommentPage . '" at offset ' . $this->ftell(); break; } $readlength = self::OggPageSegmentLength($info['ogg']['pageheader'][$VorbisCommentPage], 1); if ($readlength <= 0) { $info['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']; } $ThisFileInfo_ogg_comments_raw[$i]['offset'] = $commentdataoffset; $commentstring = substr($commentdata, $commentdataoffset, $ThisFileInfo_ogg_comments_raw[$i]['size']); $commentdataoffset += $ThisFileInfo_ogg_comments_raw[$i]['size']; if (!$commentstring) { // no comment? $info['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'], '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 { $info['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'] = (double) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'rg_radio': case 'replaygain_track_gain': $info['replay_gain']['track']['adjustment'] = (double) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'replaygain_album_peak': $info['replay_gain']['album']['peak'] = (double) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'rg_peak': case 'replaygain_track_peak': $info['replay_gain']['track']['peak'] = (double) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; case 'replaygain_reference_loudness': $info['replay_gain']['reference_volume'] = (double) $commentvalue[0]; unset($info['ogg']['comments'][$index]); break; default: // do nothing break; } } } $this->fseek($OriginalOffset); return true; }
function getid3_ogg(&$fd, &$ThisFileInfo) { $ThisFileInfo['fileformat'] = 'ogg'; // Warn about illegal tags - only vorbiscomments are allowed if (isset($ThisFileInfo['id3v2'])) { $ThisFileInfo['warning'][] = 'Illegal ID3v2 tag present.'; } if (isset($ThisFileInfo['id3v1'])) { $ThisFileInfo['warning'][] = 'Illegal ID3v1 tag present.'; } if (isset($ThisFileInfo['ape'])) { $ThisFileInfo['warning'][] = 'Illegal APE tag present.'; } // Page 1 - Stream Header fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET); $oggpageinfo = getid3_ogg::ParseOggPageHeader($fd); $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; if (ftell($fd) >= GETID3_FREAD_BUFFER_SIZE) { $ThisFileInfo['error'][] = 'Could not find start of Ogg page in the first ' . GETID3_FREAD_BUFFER_SIZE . ' bytes (this might not be an Ogg-Vorbis file?)'; unset($ThisFileInfo['fileformat']); unset($ThisFileInfo['ogg']); return false; } $filedata = fread($fd, $oggpageinfo['page_length']); $filedataoffset = 0; if (substr($filedata, 0, 4) == 'fLaC') { $ThisFileInfo['audio']['dataformat'] = 'flac'; $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; $ThisFileInfo['audio']['lossless'] = true; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $ThisFileInfo, $oggpageinfo); } elseif (substr($filedata, 0, 8) == 'Speex ') { // http://www.speex.org/manual/node10.html $ThisFileInfo['audio']['dataformat'] = 'speex'; $ThisFileInfo['mime_type'] = 'audio/speex'; $ThisFileInfo['audio']['bitrate_mode'] = 'abr'; $ThisFileInfo['audio']['lossless'] = false; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_string'] = substr($filedata, $filedataoffset, 8); // hard-coded to 'Speex ' $filedataoffset += 8; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version'] = substr($filedata, $filedataoffset, 20); $filedataoffset += 20; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version_id'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['header_size'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode_bitstream_version'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['bitrate'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['framesize'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['frames_per_packet'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['extra_headers'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved1'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['reserved2'] = getid3_lib::LittleEndian2Int(substr($filedata, $filedataoffset, 4)); $filedataoffset += 4; $ThisFileInfo['speex']['speex_version'] = trim($ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['speex_version']); $ThisFileInfo['speex']['sample_rate'] = $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['rate']; $ThisFileInfo['speex']['channels'] = $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['nb_channels']; $ThisFileInfo['speex']['vbr'] = (bool) $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['vbr']; $ThisFileInfo['speex']['band_type'] = getid3_ogg::SpeexBandModeLookup($ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['mode']); $ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['speex']['sample_rate']; $ThisFileInfo['audio']['channels'] = $ThisFileInfo['speex']['channels']; if ($ThisFileInfo['speex']['vbr']) { $ThisFileInfo['audio']['bitrate_mode'] = 'vbr'; } } else { $ThisFileInfo['error'][] = 'Expecting either "Speex " or "vorbis" identifier strings, found neither'; unset($ThisFileInfo['ogg']); unset($ThisFileInfo['mime_type']); return false; } // Page 2 - Comment Header $oggpageinfo = getid3_ogg::ParseOggPageHeader($fd); $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; switch ($ThisFileInfo['audio']['dataformat']) { case 'vorbis': $filedata = fread($fd, $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length']); $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['packet_type'] = getid3_lib::LittleEndian2Int(substr($filedata, 0, 1)); $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['stream_type'] = substr($filedata, 1, 6); // hard-coded to 'vorbis' getid3_ogg::ParseVorbisCommentsFilepointer($fd, $ThisFileInfo); break; case 'flac': if (!getid3_flac::FLACparseMETAdata($fd, $ThisFileInfo)) { $ThisFileInfo['error'][] = 'Failed to parse FLAC headers'; return false; } break; case 'speex': fseek($fd, $ThisFileInfo['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); getid3_ogg::ParseVorbisCommentsFilepointer($fd, $ThisFileInfo); break; } // Last Page - Number of Samples if (!getid3_lib::intValueSupported($ThisFileInfo['avdataend'])) { $ThisFileInfo['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)'; } else { fseek($fd, max($ThisFileInfo['avdataend'] - GETID3_FREAD_BUFFER_SIZE, 0), SEEK_SET); $LastChunkOfOgg = strrev(fread($fd, GETID3_FREAD_BUFFER_SIZE)); if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { fseek($fd, $ThisFileInfo['avdataend'] - ($LastOggSpostion + strlen('SggO')), SEEK_SET); $ThisFileInfo['avdataend'] = ftell($fd); $ThisFileInfo['ogg']['pageheader']['eos'] = getid3_ogg::ParseOggPageHeader($fd); $ThisFileInfo['ogg']['samples'] = $ThisFileInfo['ogg']['pageheader']['eos']['pcm_abs_position']; if ($ThisFileInfo['ogg']['samples'] == 0) { $ThisFileInfo['error'][] = 'Corrupt Ogg file: eos.number of samples == zero'; return false; } $ThisFileInfo['ogg']['bitrate_average'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / ($ThisFileInfo['ogg']['samples'] / $ThisFileInfo['audio']['sample_rate']); } } if (!empty($ThisFileInfo['ogg']['bitrate_average'])) { $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['ogg']['bitrate_average']; } elseif (!empty($ThisFileInfo['ogg']['bitrate_nominal'])) { $ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['ogg']['bitrate_nominal']; } elseif (!empty($ThisFileInfo['ogg']['bitrate_min']) && !empty($ThisFileInfo['ogg']['bitrate_max'])) { $ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['ogg']['bitrate_min'] + $ThisFileInfo['ogg']['bitrate_max']) / 2; } if (isset($ThisFileInfo['audio']['bitrate']) && !isset($ThisFileInfo['playtime_seconds'])) { if ($ThisFileInfo['audio']['bitrate'] == 0) { $ThisFileInfo['error'][] = 'Corrupt Ogg file: bitrate_audio == zero'; return false; } $ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']); } if (isset($ThisFileInfo['ogg']['vendor'])) { $ThisFileInfo['audio']['encoder'] = preg_replace('/^Encoded with /', '', $ThisFileInfo['ogg']['vendor']); // Vorbis only if ($ThisFileInfo['audio']['dataformat'] == 'vorbis') { // Vorbis 1.0 starts with Xiph.Org if (preg_match('/^Xiph.Org/', $ThisFileInfo['audio']['encoder'])) { if ($ThisFileInfo['audio']['bitrate_mode'] == 'abr') { // Set -b 128 on abr files $ThisFileInfo['audio']['encoder_options'] = '-b ' . round($ThisFileInfo['ogg']['bitrate_nominal'] / 1000); } elseif ($ThisFileInfo['audio']['bitrate_mode'] == 'vbr' && $ThisFileInfo['audio']['channels'] == 2 && $ThisFileInfo['audio']['sample_rate'] >= 44100 && $ThisFileInfo['audio']['sample_rate'] <= 48000) { // Set -q N on vbr files $ThisFileInfo['audio']['encoder_options'] = '-q ' . $this->get_quality_from_nominal_bitrate($ThisFileInfo['ogg']['bitrate_nominal']); } } if (empty($ThisFileInfo['audio']['encoder_options']) && !empty($ThisFileInfo['ogg']['bitrate_nominal'])) { $ThisFileInfo['audio']['encoder_options'] = 'Nominal bitrate: ' . intval(round($ThisFileInfo['ogg']['bitrate_nominal'] / 1000)) . 'kbps'; } } } return true; }
function FLACparseAPPLICATION($METAdataBlockData, &$ThisFileInfo) { $offset = 0; $ApplicationID = getid3_lib::BigEndian2Int(substr($METAdataBlockData, $offset, 4)); $offset += 4; $ThisFileInfo['flac']['APPLICATION'][$ApplicationID]['name'] = getid3_flac::FLACapplicationIDLookup($ApplicationID); $ThisFileInfo['flac']['APPLICATION'][$ApplicationID]['data'] = substr($METAdataBlockData, $offset); $offset = $METAdataBlockLength; return true; }
function Analyze() { $info =& $this->getid3->info; $info['fileformat'] = 'ogg'; // Warn about illegal tags - only vorbiscomments are allowed if (isset($info['id3v2'])) { $info['warning'][] = 'Illegal ID3v2 tag present.'; } if (isset($info['id3v1'])) { $info['warning'][] = 'Illegal ID3v1 tag present.'; } if (isset($info['ape'])) { $info['warning'][] = 'Illegal APE tag present.'; } // Page 1 - Stream Header fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET); $oggpageinfo = $this->ParseOggPageHeader(); $info['ogg']['pageheader'][$oggpageinfo['page_seqno']] = $oggpageinfo; if (ftell($this->getid3->fp) >= $this->getid3->fread_buffer_size()) { $info['error'][] = 'Could not find start of Ogg page in the first ' . $this->getid3->fread_buffer_size() . ' bytes (this might not be an Ogg-Vorbis file?)'; unset($info['fileformat']); unset($info['ogg']); return false; } $filedata = fread($this->getid3->fp, $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) == '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, 8) == "fishead") { // 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'] = $info['ogg']['skeleton']['fishead']['raw']['presentationtime_numerator'] / $info['ogg']['skeleton']['fishead']['raw']['presentationtime_denominator']; $info['ogg']['skeleton']['fishead']['basetime'] = $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; $filedata = fread($this->getid3->fp, $oggpageinfo['page_length']); fseek($this->getid3->fp, $oggpageinfo['page_end_offset'], SEEK_SET); //echo substr($filedata, 0, 8).'<br>'; if (substr($filedata, 0, 8) == "fisbone") { $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'] = 'theora'; $info['error'][] = 'Ogg Theora not correctly handled in this version of getID3 [' . $this->getid3->version() . ']'; //break; } elseif (substr($filedata, 1, 6) == 'vorbis') { $this->ParseVorbisPageHeader($filedata, $filedataoffset, $oggpageinfo); } else { $info['error'][] = 'unexpected'; //break; } //} while ($oggpageinfo['page_seqno'] == 0); } while ($oggpageinfo['page_seqno'] == 0 && substr($filedata, 0, 8) != "fisbone"); fseek($this->getid3->fp, $oggpageinfo['page_start_offset'], SEEK_SET); $info['error'][] = 'Ogg Skeleton not correctly handled in this version of getID3 [' . $this->getid3->version() . ']'; //return false; } else { $info['error'][] = 'Expecting either "Speex " or "vorbis" identifier strings, found "' . substr($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': $filedata = fread($this->getid3->fp, $info['ogg']['pageheader'][$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->ParseVorbisCommentsFilepointer(); break; case 'flac': $getid3_flac = new getid3_flac($this->getid3); if (!$getid3_flac->FLACparseMETAdata()) { $info['error'][] = 'Failed to parse FLAC headers'; return false; } unset($getid3_flac); break; case 'speex': fseek($this->getid3->fp, $info['ogg']['pageheader'][$oggpageinfo['page_seqno']]['page_length'], SEEK_CUR); $this->ParseVorbisCommentsFilepointer(); break; } // Last Page - Number of Samples if (!getid3_lib::intValueSupported($info['avdataend'])) { $info['warning'][] = 'Unable to parse Ogg end chunk file (PHP does not support file operations beyond ' . round(PHP_INT_MAX / 1073741824) . 'GB)'; } else { fseek($this->getid3->fp, max($info['avdataend'] - $this->getid3->fread_buffer_size(), 0), SEEK_SET); $LastChunkOfOgg = strrev(fread($this->getid3->fp, $this->getid3->fread_buffer_size())); if ($LastOggSpostion = strpos($LastChunkOfOgg, 'SggO')) { fseek($this->getid3->fp, $info['avdataend'] - ($LastOggSpostion + strlen('SggO')), SEEK_SET); $info['avdataend'] = ftell($this->getid3->fp); $info['ogg']['pageheader']['eos'] = $this->ParseOggPageHeader(); $info['ogg']['samples'] = $info['ogg']['pageheader']['eos']['pcm_abs_position']; if ($info['ogg']['samples'] == 0) { $info['error'][] = 'Corrupt Ogg file: eos.number of samples == zero'; return false; } if (!empty($info['audio']['sample_rate'])) { $info['ogg']['bitrate_average'] = ($info['avdataend'] - $info['avdataoffset']) * 8 / ($info['ogg']['samples'] / $info['audio']['sample_rate']); } } } if (!empty($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) { $info['error'][] = 'Corrupt Ogg file: bitrate_audio == zero'; return false; } $info['playtime_seconds'] = (double) (($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; }
function FLACparsePICTURE($meta_data_block_data) { $info =& $this->getid3->info; $picture =& $info['flac']['PICTURE'][sizeof($info['flac']['PICTURE']) - 1]; $picture['offset'] = $info['flac']['PICTURE']['raw']['offset']; unset($info['flac']['PICTURE']['raw']); $offset = 0; $picture['typeid'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $picture['type'] = getid3_flac::FLACpictureTypeLookup($picture['typeid']); $offset += 4; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['image_mime'] = substr($meta_data_block_data, $offset, $length); $offset += $length; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['description'] = substr($meta_data_block_data, $offset, $length); $offset += $length; $picture['width'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['height'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['color_depth'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['colors_indexed'] = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $length = getid3_lib::BigEndian2Int(substr($meta_data_block_data, $offset, 4)); $offset += 4; $picture['data'] = substr($meta_data_block_data, $offset, $length); $offset += $length; $picture['data_length'] = strlen($picture['data']); do { if ($this->inline_attachments === false) { // skip entirely unset($picture['data']); break; } if ($this->inline_attachments === true) { // great } elseif (is_int($this->inline_attachments)) { if ($this->inline_attachments < $picture['data_length']) { // too big, skip $info['warning'][] = 'attachment at ' . $picture['offset'] . ' is too large to process inline (' . number_format($picture['data_length']) . ' bytes)'; unset($picture['data']); break; } } elseif (is_string($this->inline_attachments)) { $this->inline_attachments = rtrim(str_replace(array('/', '\\'), DIRECTORY_SEPARATOR, $this->inline_attachments), DIRECTORY_SEPARATOR); if (!is_dir($this->inline_attachments) || !is_writable($this->inline_attachments)) { // cannot write, skip $info['warning'][] = 'attachment at ' . $picture['offset'] . ' cannot be saved to "' . $this->inline_attachments . '" (not writable)'; unset($picture['data']); break; } } // if we get this far, must be OK if (is_string($this->inline_attachments)) { $destination_filename = $this->inline_attachments . DIRECTORY_SEPARATOR . md5($info['filenamepath']) . '_' . $picture['offset']; if (!file_exists($destination_filename) || is_writable($destination_filename)) { file_put_contents($destination_filename, $picture['data']); } else { $info['warning'][] = 'attachment at ' . $picture['offset'] . ' cannot be saved to "' . $destination_filename . '" (not writable)'; } $picture['data_filename'] = $destination_filename; unset($picture['data']); } else { if (!isset($info['flac']['comments']['picture'])) { $info['flac']['comments']['picture'] = array(); } $info['flac']['comments']['picture'][] = array('data' => $picture['data'], 'image_mime' => $picture['image_mime']); } } while (false); return true; }