| // | Allan Hansen | // +----------------------------------------------------------------------+ // | module.audio-video.quicktime.php | // | Module for analyzing Quicktime, MP3-in-MP4 and Apple Lossless files. | // | dependencies: module.audio.mp3.php | // | zlib support in PHP (optional) | // +----------------------------------------------------------------------+ // // $Id: module.audio-video.quicktime.php,v 1.7 2006/11/02 16:03:28 ah Exp $ class getid3_quicktime extends getid3_handler { public function Analyze() { $getid3 = $this->getid3; $info = &$getid3->info; $getid3->include_module('audio.mp3'); $info['quicktime'] = array (); $info_quicktime = &$info['quicktime']; $info['fileformat'] = 'quicktime'; $info_quicktime['hinting'] = false; fseek($getid3->fp, $info['avdataoffset'], SEEK_SET); $offset = $atom_counter = 0; while ($offset < $info['avdataend']) { fseek($getid3->fp, $offset, SEEK_SET); $atom_header = fread($getid3->fp, 8); $atom_size = getid3_lib::BigEndian2Int(substr($atom_header, 0, 4)); $atom_name = substr($atom_header, 4, 4); $info_quicktime[$atom_name]['name'] = $atom_name; $info_quicktime[$atom_name]['size'] = $atom_size; $info_quicktime[$atom_name]['offset'] = $offset; if (($offset + $atom_size) > $info['avdataend']) { throw new getid3_exception('Atom at offset '.$offset.' claims to go beyond end-of-file (length: '.$atom_size.' bytes)'); } if ($atom_size == 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. break; } switch ($atom_name) { case 'mdat': // Media DATa atom // 'mdat' contains the actual data for the audio/video if (($atom_size > 8) && (!isset($info['avdataend_tmp']) || ($info_quicktime[$atom_name]['size'] > ($info['avdataend_tmp'] - $info['avdataoffset'])))) { $info['avdataoffset'] = $info_quicktime[$atom_name]['offset'] + 8; $old_av_data_end = $info['avdataend']; $info['avdataend'] = $info_quicktime[$atom_name]['offset'] + $info_quicktime[$atom_name]['size']; //// MP3 if (!$getid3->include_module_optional('audio.mp3')) { $getid3->warning('MP3 skipped because mpeg module is missing.'); } else { // Clone getid3 - messing with offsets - better safe than sorry $clone = clone $getid3; if (getid3_mp3::MPEGaudioHeaderValid(getid3_mp3::MPEGaudioHeaderDecode(fread($clone->fp, 4)))) { $mp3 = new getid3_mp3($clone); $mp3->AnalyzeMPEGaudioInfo(); // Import from clone and destroy if (isset($clone->info['mpeg']['audio'])) { $info['mpeg']['audio'] = $clone->info['mpeg']['audio']; $info['audio']['dataformat'] = 'mp3'; $info['audio']['codec'] = (!empty($info['mpeg']['audio']['encoder']) ? $info['mpeg']['audio']['encoder'] : (!empty($info['mpeg']['audio']['codec']) ? $info['mpeg']['audio']['codec'] : (!empty($info['mpeg']['audio']['LAME']) ? 'LAME' :'mp3'))); $info['audio']['sample_rate'] = $info['mpeg']['audio']['sample_rate']; $info['audio']['channels'] = $info['mpeg']['audio']['channels']; $info['audio']['bitrate'] = $info['mpeg']['audio']['bitrate']; $info['audio']['bitrate_mode'] = strtolower($info['mpeg']['audio']['bitrate_mode']); $info['bitrate'] = $info['audio']['bitrate']; $getid3->warning($clone->warnings()); unset($clone); } } } $info['avdataend'] = $old_av_data_end; unset($old_av_data_end); } break; case 'free': // FREE space atom case 'skip': // SKIP atom case 'wide': // 64-bit expansion placeholder atom // 'free', 'skip' and 'wide' are just padding, contains no useful data at all break; default: $atom_hierarchy = array (); $info_quicktime[$atom_name] = $this->QuicktimeParseAtom($atom_name, $atom_size, fread($getid3->fp, $atom_size), $offset, $atom_hierarchy); break; } $offset += $atom_size; $atom_counter++; } if (!empty($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($info['bitrate']) && isset($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'] = $info['bitrate']; } if (@$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') && empty($info['video']['resolution_x'])) { $info['fileformat'] = 'mp4'; $info['mime_type'] = 'audio/mp4'; unset($info['video']['dataformat']); } if (!$getid3->option_extra_info) { unset($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'])) { $info['video']['dataformat'] = 'quicktime'; } return true; } private function QuicktimeParseAtom($atom_name, $atom_size, $atom_data, $base_offset, &$atom_hierarchy) { // http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm $getid3 = $this->getid3; $info = &$getid3->info; $info_quicktime = &$info['quicktime']; array_push($atom_hierarchy, $atom_name); $atom_structure['hierarchy'] = implode(' ', $atom_hierarchy); $atom_structure['name'] = $atom_name; $atom_structure['size'] = $atom_size; $atom_structure['offset'] = $base_offset; switch ($atom_name) { case 'moov': // MOVie container atom case 'trak': // TRAcK container atom 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 'udta': // User DaTA container atom case 'stbl': // Sample TaBLe 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, $base_offset + 8, $atom_hierarchy); break; case '©cpy': case '©day': case '©dir': case '©ed1': case '©ed2': case '©ed3': case '©ed4': case '©ed5': case '©ed6': case '©ed7': case '©ed8': case '©ed9': case '©fmt': case '©inf': case '©prd': case '©prf': case '©req': case '©src': case '©wrt': case '©nam': case '©cmt': case '©wrn': case '©hst': case '©mak': case '©mod': case '©PRD': case '©swr': case '©aut': case '©ART': case '©trk': case '©alb': case '©com': case '©gen': case '©ope': case '©url': case '©enc': $atom_structure['data_length'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); $atom_structure['language_id'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); $atom_structure['data'] = substr($atom_data, 4); $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { $info['comments']['language'][] = $atom_structure['language']; } $this->CopyToAppropriateCommentsSection($atom_name, $atom_structure['data']); break; case 'play': // auto-PLAY atom $atom_structure['autoplay'] = (bool)getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $info_quicktime['autoplay'] = $atom_structure['autoplay']; break; case 'WLOC': // Window LOCation atom $atom_structure['location_x'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); $atom_structure['location_y'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 2)); break; case 'LOOP': // LOOPing atom case 'SelO': // play SELection Only atom case 'AllF': // play ALL Frames atom $atom_structure['data'] = getid3_lib::BigEndian2Int($atom_data); break; case 'name': // case 'MCPS': // Media Cleaner PRo case '@PRM': // adobe PReMiere version case '@PRQ': // adobe PRemiere Quicktime version $atom_structure['data'] = $atom_data; break; case 'cmvd': // Compressed MooV Data atom // Code by ubergeekØubergeek*tv based on information from // http://developer.apple.com/quicktime/icefloe/dispatch012.html $atom_structure['unCompressedSize'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); $compressed_file_data = substr($atom_data, 4); if (!function_exists('gzuncompress')) { $getid3->warning('PHP does not have zlib support - cannot decompress MOV atom at offset '.$atom_structure['offset']); } elseif ($uncompressed_header = @gzuncompress($compressed_file_data)) { $atom_structure['subatoms'] = $this->QuicktimeParseContainerAtom($uncompressed_header, 0, $atom_hierarchy); } else { $getid3->warning('Error decompressing compressed MOV atom at offset '.$atom_structure['offset']); } break; case 'dcom': // Data COMpression atom $atom_structure['compression_id'] = $atom_data; $atom_structure['compression_text'] = getid3_quicktime::QuicktimeDCOMLookup($atom_data); break; case 'rdrf': // Reference movie Data ReFerence atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, 'reference_type_name' => -4, 'reference_length' => 4, ) ); $atom_structure['flags']['internal_data'] = (bool)($atom_structure['flags_raw'] & 0x000001); switch ($atom_structure['reference_type_name']) { case 'url ': $atom_structure['url'] = $this->NoNullString(substr($atom_data, 12)); break; case 'alis': $atom_structure['file_alias'] = substr($atom_data, 12); break; case 'rsrc': $atom_structure['resource_alias'] = substr($atom_data, 12); break; default: $atom_structure['data'] = substr($atom_data, 12); break; } break; case 'rmqu': // Reference Movie QUality atom $atom_structure['movie_quality'] = getid3_lib::BigEndian2Int($atom_data); break; case 'rmcs': // Reference Movie Cpu Speed atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'cpu_speed_rating' => 2 ) ); break; case 'rmvc': // Reference Movie Version Check atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'gestalt_selector' => -4, 'gestalt_value_mask' => 4, 'gestalt_value' => 4, 'gestalt_check_type' => 2 ) ); break; case 'rmcd': // Reference Movie Component check atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'component_type' => -4, 'component_subtype' => -4, 'component_manufacturer' => -4, 'component_flags_raw' => 4, 'component_flags_mask' => 4, 'component_min_version' => 4 ) ); break; case 'rmdr': // Reference Movie Data Rate atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'data_rate' => 4 ) ); $atom_structure['data_rate_bps'] = $atom_structure['data_rate'] * 10; break; case 'rmla': // Reference Movie Language Atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'language_id' => 2 ) ); $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { $info['comments']['language'][] = $atom_structure['language']; } break; case 'rmla': // Reference Movie Language Atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'track_id' => 2 ) ); break; case 'ptv ': // Print To Video - defines a movie's full screen mode // http://developer.apple.com/documentation/QuickTime/APIREF/SOURCESIV/at_ptv-_pg.htm getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'display_size_raw' => 2, 'reserved_1' => 2, // hardcoded: 0x0000 'reserved_2' => 2, // hardcoded: 0x0000 'slide_show_flag' => 1, 'play_on_open_flag' => 1 ) ); $atom_structure['flags']['play_on_open'] = (bool)$atom_structure['play_on_open_flag']; $atom_structure['flags']['slide_show'] = (bool)$atom_structure['slide_show_flag']; $ptv_lookup[0] = 'normal'; $ptv_lookup[1] = 'double'; $ptv_lookup[2] = 'half'; $ptv_lookup[3] = 'full'; $ptv_lookup[4] = 'current'; if (isset($ptv_lookup[$atom_structure['display_size_raw']])) { $atom_structure['display_size'] = $ptv_lookup[$atom_structure['display_size_raw']]; } else { $getid3->warning('unknown "ptv " display constant ('.$atom_structure['display_size_raw'].')'); } break; case 'stsd': // Sample Table Sample Description atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'number_entries' => 4 ) ); $stsd_entries_data_offset = 8; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_data, $stsd_entries_data_offset, array ( 'size' => 4, 'data_format' => -4, 'reserved' => 6, 'reference_index' => 2 ) ); $atom_structure['sample_description_table'][$i]['data'] = substr($atom_data, 16+$stsd_entries_data_offset, ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2)); $stsd_entries_data_offset += 16 + ($atom_structure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2); getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 0, array ( 'encoder_version' => 2, 'encoder_revision' => 2, 'encoder_vendor' => -4 ) ); switch ($atom_structure['sample_description_table'][$i]['encoder_vendor']) { case "\x00\x00\x00\x00": // audio atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 8, array ( 'audio_channels' => 2, 'audio_bit_depth' => 2, 'audio_compression_id' => 2, 'audio_packet_size' => 2 ) ); $atom_structure['sample_description_table'][$i]['audio_sample_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 16, 4)); switch ($atom_structure['sample_description_table'][$i]['data_format']) { case 'mp4v': $info['fileformat'] = 'mp4'; throw new getid3_exception('This version of getID3() does not fully support MPEG-4 audio/video streams'); case 'qtvr': $info['video']['dataformat'] = 'quicktimevr'; break; case 'mp4a': default: $info_quicktime['audio']['codec'] = $this->QuicktimeAudioCodecLookup($atom_structure['sample_description_table'][$i]['data_format']); $info_quicktime['audio']['sample_rate'] = $atom_structure['sample_description_table'][$i]['audio_sample_rate']; $info_quicktime['audio']['channels'] = $atom_structure['sample_description_table'][$i]['audio_channels']; $info_quicktime['audio']['bit_depth'] = $atom_structure['sample_description_table'][$i]['audio_bit_depth']; $info['audio']['codec'] = $info_quicktime['audio']['codec']; $info['audio']['sample_rate'] = $info_quicktime['audio']['sample_rate']; $info['audio']['channels'] = $info_quicktime['audio']['channels']; $info['audio']['bits_per_sample'] = $info_quicktime['audio']['bit_depth']; switch ($atom_structure['sample_description_table'][$i]['data_format']) { case 'raw ': // PCM case 'alac': // Apple Lossless Audio Codec $info['audio']['lossless'] = true; break; default: $info['audio']['lossless'] = false; break; } break; } break; default: switch ($atom_structure['sample_description_table'][$i]['data_format']) { case 'mp4s': $info['fileformat'] = 'mp4'; break; default: // video atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 8, array ( 'video_temporal_quality' => 4, 'video_spatial_quality' => 4, 'video_frame_width' => 2, 'video_frame_height' => 2 ) ); $atom_structure['sample_description_table'][$i]['video_resolution_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 20, 4)); $atom_structure['sample_description_table'][$i]['video_resolution_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_structure['sample_description_table'][$i]['data'], 24, 4)); getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['sample_description_table'][$i], $atom_structure['sample_description_table'][$i]['data'], 28, array ( 'video_data_size' => 4, 'video_frame_count' => 2, 'video_encoder_name_len' => 1 ) ); $atom_structure['sample_description_table'][$i]['video_encoder_name'] = substr($atom_structure['sample_description_table'][$i]['data'], 35, $atom_structure['sample_description_table'][$i]['video_encoder_name_len']); $atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 66, 2)); $atom_structure['sample_description_table'][$i]['video_color_table_id'] = getid3_lib::BigEndian2Int(substr($atom_structure['sample_description_table'][$i]['data'], 68, 2)); $atom_structure['sample_description_table'][$i]['video_pixel_color_type'] = (($atom_structure['sample_description_table'][$i]['video_pixel_color_depth'] > 32) ? 'grayscale' : 'color'); $atom_structure['sample_description_table'][$i]['video_pixel_color_name'] = $this->QuicktimeColorNameLookup($atom_structure['sample_description_table'][$i]['video_pixel_color_depth']); if ($atom_structure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') { $info_quicktime['video']['codec_fourcc'] = $atom_structure['sample_description_table'][$i]['data_format']; $info_quicktime['video']['codec_fourcc_lookup'] = $this->QuicktimeVideoCodecLookup($atom_structure['sample_description_table'][$i]['data_format']); $info_quicktime['video']['codec'] = $atom_structure['sample_description_table'][$i]['video_encoder_name']; $info_quicktime['video']['color_depth'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_depth']; $info_quicktime['video']['color_depth_name'] = $atom_structure['sample_description_table'][$i]['video_pixel_color_name']; $info['video']['codec'] = $info_quicktime['video']['codec']; $info['video']['bits_per_sample'] = $info_quicktime['video']['color_depth']; } $info['video']['lossless'] = false; $info['video']['pixel_aspect_ratio'] = (float)1; break; } break; } switch (strtolower($atom_structure['sample_description_table'][$i]['data_format'])) { case 'mp4a': $info['audio']['dataformat'] = $info_quicktime['audio']['codec'] = 'mp4'; break; case '3ivx': case '3iv1': case '3iv2': $info['video']['dataformat'] = '3ivx'; break; case 'xvid': $info['video']['dataformat'] = 'xvid'; break; case 'mp4v': $info['video']['dataformat'] = 'mpeg4'; break; case 'divx': case 'div1': case 'div2': case 'div3': case 'div4': case 'div5': case 'div6': //$TDIVXileInfo['video']['dataformat'] = 'divx'; break; default: // do nothing break; } unset($atom_structure['sample_description_table'][$i]['data']); } break; case 'stts': // Sample Table Time-to-Sample atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'number_entries' => 4 ) ); $stts_entries_data_offset = 8; //$frame_rate_calculator_array = array (); $frames_count = 0; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { $atom_structure['time_to_sample_table'][$i]['sample_count'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4)); $stts_entries_data_offset += 4; $atom_structure['time_to_sample_table'][$i]['sample_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, $stts_entries_data_offset, 4)); $stts_entries_data_offset += 4; $frames_count += $atom_structure['time_to_sample_table'][$i]['sample_count']; //if (!empty($info_quicktime['time_scale']) && (@$atoms_structure['time_to_sample_table'][$i]['sample_duration'] > 0)) { // // $stts_new_framerate = $info_quicktime['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration']; // if ($stts_new_framerate <= 60) { // // some atoms have durations of "1" giving a very large framerate, which probably is not right // $info['video']['frame_rate'] = max(@$info['video']['frame_rate'], $stts_new_framerate); // } //} //@$frame_rate_calculator_array[($info_quicktime['time_scale'] / $atom_structure['time_to_sample_table'][$i]['sample_duration'])] += $atom_structure['time_to_sample_table'][$i]['sample_count']; } $info['quicktime']['stts_framecount'][] = $frames_count; break; case 'stss': // Sample Table Sync Sample (key frames) atom /* $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); $stss_entries_data_offset = 8; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { $atom_structure['time_to_sample_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stss_entries_data_offset, 4)); $stss_entries_data_offset += 4; } */ break; case 'stsc': // Sample Table Sample-to-Chunk atom /* $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); $stsc_entries_data_offset = 8; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { $atom_structure['sample_to_chunk_table'][$i]['first_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); $stsc_entries_data_offset += 4; $atom_structure['sample_to_chunk_table'][$i]['samples_per_chunk'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); $stsc_entries_data_offset += 4; $atom_structure['sample_to_chunk_table'][$i]['sample_description'] = getid3_lib::BigEndian2Int(substr($atom_data, $stsc_entries_data_offset, 4)); $stsc_entries_data_offset += 4; } */ break; case 'stsz': // Sample Table SiZe atom /* $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 $atom_structure['sample_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 8, 4)); $stsz_entries_data_offset = 12; if ($atom_structure['sample_size'] == 0) { for ($i = 0; $i < $atom_structure['number_entries']; $i++) { $atom_structure['sample_size_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stsz_entries_data_offset, 4)); $stsz_entries_data_offset += 4; } } */ break; case 'stco': // Sample Table Chunk Offset atom /* $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 $atom_structure['number_entries'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 4)); $stco_entries_data_offset = 8; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { $atom_structure['chunk_offset_table'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $stco_entries_data_offset, 4)); $stco_entries_data_offset += 4; } */ break; case 'dref': // Data REFerence atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'number_entries' => 4 ) ); $dref_data_offset = 8; for ($i = 0; $i < $atom_structure['number_entries']; $i++) { getid3_lib::ReadSequence('BigEndian2Int', $atom_structure['data_references'][$i], $atom_data, $dref_data_offset, array ( 'size' => 4, 'type' => -4, 'version' => 1, 'flags_raw' => 3 // hardcoded: 0x0000 ) ); $dref_data_offset += 12; $atom_structure['data_references'][$i]['data'] = substr($atom_data, $dref_data_offset, ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3)); $dref_data_offset += ($atom_structure['data_references'][$i]['size'] - 4 - 4 - 1 - 3); $atom_structure['data_references'][$i]['flags']['self_reference'] = (bool)($atom_structure['data_references'][$i]['flags_raw'] & 0x001); } break; case 'gmin': // base Media INformation atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'graphics_mode' => 2, 'opcolor_red' => 2, 'opcolor_green' => 2, 'opcolor_blue' => 2, 'balance' => 2, 'reserved' => 2 ) ); break; case 'smhd': // Sound Media information HeaDer atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'balance' => 2, 'reserved' => 2 ) ); break; case 'vmhd': // Video Media information HeaDer atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, 'graphics_mode' => 2, 'opcolor_red' => 2, 'opcolor_green' => 2, 'opcolor_blue' => 2 ) ); $atom_structure['flags']['no_lean_ahead'] = (bool)($atom_structure['flags_raw'] & 0x001); break; case 'hdlr': // HanDLeR reference atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'component_type' => -4, 'component_subtype' => -4, 'component_manufacturer' => -4, 'component_flags_raw' => 4, 'component_flags_mask' => 4 ) ); $atom_structure['component_name'] = substr(substr($atom_data, 24), 1); /// Pascal2String if (($atom_structure['component_subtype'] == 'STpn') && ($atom_structure['component_manufacturer'] == 'zzzz')) { $info['video']['dataformat'] = 'quicktimevr'; } break; case 'mdhd': // MeDia HeaDer atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'creation_time' => 4, 'modify_time' => 4, 'time_scale' => 4, 'duration' => 4, 'language_id' => 2, 'quality' => 2 ) ); if ($atom_structure['time_scale'] == 0) { throw new getid3_exception('Corrupt Quicktime file: mdhd.time_scale == zero'); } $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']); $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() $atom_structure['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale']; $atom_structure['language'] = $this->QuicktimeLanguageLookup($atom_structure['language_id']); if (empty($info['comments']['language']) || (!in_array($atom_structure['language'], $info['comments']['language']))) { $info['comments']['language'][] = $atom_structure['language']; } break; case 'pnot': // Preview atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'modification_date' => 4, // "standard Macintosh format" 'version_number' => 2, // hardcoded: 0x00 'atom_type' => -4, // usually: 'PICT' 'atom_index' => 2 // usually: 0x01 ) ); $atom_structure['modification_date_unix'] = (int)($atom_structure['modification_date'] - 2082844800); // DateMac2Unix() break; case 'crgn': // Clipping ReGioN atom $atom_structure['region_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 2)); // The Region size, Region boundary box, $atom_structure['boundary_box'] = getid3_lib::BigEndian2Int(substr($atom_data, 2, 8)); // and Clipping region data fields $atom_structure['clipping_data'] = substr($atom_data, 10); // constitute a QuickDraw region. break; case 'load': // track LOAD settings atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'preload_start_time' => 4, 'preload_duration' => 4, 'preload_flags_raw' => 4, 'default_hints_raw' => 4 ) ); $atom_structure['default_hints']['double_buffer'] = (bool)($atom_structure['default_hints_raw'] & 0x0020); $atom_structure['default_hints']['high_quality'] = (bool)($atom_structure['default_hints_raw'] & 0x0100); break; case 'tmcd': // TiMe CoDe atom case 'chap': // CHAPter list atom case 'sync': // SYNChronization atom case 'scpt': // tranSCriPT atom case 'ssrc': // non-primary SouRCe atom for ($i = 0; $i < (strlen($atom_data) % 4); $i++) { $atom_structure['track_id'][$i] = getid3_lib::BigEndian2Int(substr($atom_data, $i * 4, 4)); } break; case 'elst': // Edit LiST atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, // hardcoded: 0x0000 'number_entries' => 4 ) ); for ($i = 0; $i < $atom_structure['number_entries']; $i++ ) { $atom_structure['edit_list'][$i]['track_duration'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 0, 4)); $atom_structure['edit_list'][$i]['media_time'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($i * 12) + 4, 4)); $atom_structure['edit_list'][$i]['media_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 8 + ($i * 12) + 8, 4)); } break; case 'kmat': // compressed MATte atom $atom_structure['version'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 1)); $atom_structure['flags_raw'] = getid3_lib::BigEndian2Int(substr($atom_data, 1, 3)); // hardcoded: 0x0000 $atom_structure['matte_data_raw'] = substr($atom_data, 4); break; case 'ctab': // Color TABle atom $atom_structure['color_table_seed'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); // hardcoded: 0x00000000 $atom_structure['color_table_flags'] = getid3_lib::BigEndian2Int(substr($atom_data, 4, 2)); // hardcoded: 0x8000 $atom_structure['color_table_size'] = getid3_lib::BigEndian2Int(substr($atom_data, 6, 2)) + 1; for ($colortableentry = 0; $colortableentry < $atom_structure['color_table_size']; $colortableentry++) { $atom_structure['color_table'][$colortableentry]['alpha'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 0, 2)); $atom_structure['color_table'][$colortableentry]['red'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 2, 2)); $atom_structure['color_table'][$colortableentry]['green'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 4, 2)); $atom_structure['color_table'][$colortableentry]['blue'] = getid3_lib::BigEndian2Int(substr($atom_data, 8 + ($colortableentry * 8) + 6, 2)); } break; case 'mvhd': // MoVie HeaDer atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, 'creation_time' => 4, 'modify_time' => 4, 'time_scale' => 4, 'duration' => 4 ) ); $atom_structure['preferred_rate'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 20, 4)); $atom_structure['preferred_volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 24, 2)); $atom_structure['reserved'] = substr($atom_data, 26, 10); $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 36, 4)); $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4)); $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 44, 4)); $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4)); $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4)); $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 56, 4)); $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4)); $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 64, 4)); $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4)); getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 72, array ( 'preview_time' => 4, 'preview_duration' => 4, 'poster_time' => 4, 'selection_time' => 4, 'selection_duration' => 4, 'current_time' => 4, 'next_track_id' => 4 ) ); if ($atom_structure['time_scale'] == 0) { throw new getid3_exception('Corrupt Quicktime file: mvhd.time_scale == zero'); } $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() $info_quicktime['time_scale'] = max(@$info['quicktime']['time_scale'], $atom_structure['time_scale']); $info_quicktime['display_scale'] = $atom_structure['matrix_a']; $info['playtime_seconds'] = $atom_structure['duration'] / $atom_structure['time_scale']; break; case 'tkhd': // TracK HeaDer atom getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'version' => 1, 'flags_raw' => 3, 'creation_time' => 4, 'modify_time' => 4, 'trackid' => 4, 'reserved1' => 4, 'duration' => 4, 'reserved2' => 8, 'layer' => 2, 'alternate_group' => 2 ) ); $atom_structure['volume'] = getid3_quicktime::FixedPoint8_8(substr($atom_data, 36, 2)); $atom_structure['reserved3'] = getid3_lib::BigEndian2Int(substr($atom_data, 38, 2)); $atom_structure['matrix_a'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 40, 4)); $atom_structure['matrix_b'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 44, 4)); $atom_structure['matrix_u'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 48, 4)); $atom_structure['matrix_c'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 52, 4)); $atom_structure['matrix_v'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 56, 4)); $atom_structure['matrix_d'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 60, 4)); $atom_structure['matrix_x'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 64, 4)); $atom_structure['matrix_y'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 68, 4)); $atom_structure['matrix_w'] = getid3_quicktime::FixedPoint2_30(substr($atom_data, 72, 4)); $atom_structure['width'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 76, 4)); $atom_structure['height'] = getid3_quicktime::FixedPoint16_16(substr($atom_data, 80, 4)); $atom_structure['flags']['enabled'] = (bool)($atom_structure['flags_raw'] & 0x0001); $atom_structure['flags']['in_movie'] = (bool)($atom_structure['flags_raw'] & 0x0002); $atom_structure['flags']['in_preview'] = (bool)($atom_structure['flags_raw'] & 0x0004); $atom_structure['flags']['in_poster'] = (bool)($atom_structure['flags_raw'] & 0x0008); $atom_structure['creation_time_unix'] = (int)($atom_structure['creation_time'] - 2082844800); // DateMac2Unix() $atom_structure['modify_time_unix'] = (int)($atom_structure['modify_time'] - 2082844800); // DateMac2Unix() if (!isset($info['video']['resolution_x']) || !isset($info['video']['resolution_y'])) { $info['video']['resolution_x'] = $atom_structure['width']; $info['video']['resolution_y'] = $atom_structure['height']; } if ($atom_structure['flags']['enabled'] == 1) { $info['video']['resolution_x'] = max($info['video']['resolution_x'], $atom_structure['width']); $info['video']['resolution_y'] = max($info['video']['resolution_y'], $atom_structure['height']); } if (!empty($info['video']['resolution_x']) && !empty($info['video']['resolution_y'])) { $info_quicktime['video']['resolution_x'] = $info['video']['resolution_x']; $info_quicktime['video']['resolution_y'] = $info['video']['resolution_y']; } else { unset($info['video']['resolution_x']); unset($info['video']['resolution_y']); unset($info_quicktime['video']); } break; case 'meta': // METAdata atom // http://www.geocities.com/xhelmboyx/quicktime/formats/qti-layout.txt $next_tag_position = strpos($atom_data, '©'); while ($next_tag_position < strlen($atom_data)) { $meta_item_size = getid3_lib::BigEndian2Int(substr($atom_data, $next_tag_position - 4, 4)) - 4; if ($meta_item_size == -4) { break; } $meta_item_raw = substr($atom_data, $next_tag_position, $meta_item_size); $meta_item_key = substr($meta_item_raw, 0, 4); $meta_item_data = substr($meta_item_raw, 20); $next_tag_position += $meta_item_size + 4; $this->CopyToAppropriateCommentsSection($meta_item_key, $meta_item_data); } break; case 'ftyp': // FileTYPe (?) atom (for MP4 it seems) getid3_lib::ReadSequence('BigEndian2Int', $atom_structure, $atom_data, 0, array ( 'signature' => -4, 'unknown_1' => 4, 'fourcc' => -4, ) ); break; case 'mdat': // Media DATa atom case 'free': // FREE space atom case 'skip': // SKIP atom case 'wide': // 64-bit expansion placeholder atom // 'mdat' data is too big to deal with, contains no useful metadata // 'free', 'skip' and 'wide' are just padding, contains no useful data at all // When writing QuickTime files, it is sometimes necessary to update an atom's size. // It is impossible to update a 32-bit atom to a 64-bit atom since the 32-bit atom // is only 8 bytes in size, and the 64-bit atom requires 16 bytes. Therefore, QuickTime // puts an 8-byte placeholder atom before any atoms it may have to update the size of. // In this way, if the atom needs to be converted from a 32-bit to a 64-bit atom, the // placeholder atom can be overwritten to obtain the necessary 8 extra bytes. // The placeholder atom has a type of kWideAtomPlaceholderType ( 'wide' ). break; case 'nsav': // NoSAVe atom // http://developer.apple.com/technotes/tn/tn2038.html $atom_structure['data'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); break; case 'ctyp': // Controller TYPe atom (seen on QTVR) // http://homepages.slingshot.co.nz/~helmboy/quicktime/formats/qtm-layout.txt // some controller names are: // 0x00 + 'std' for linear movie // 'none' for no controls $atom_structure['ctyp'] = substr($atom_data, 0, 4); switch ($atom_structure['ctyp']) { case 'qtvr': $info['video']['dataformat'] = 'quicktimevr'; break; } break; case 'pano': // PANOrama track (seen on QTVR) $atom_structure['pano'] = getid3_lib::BigEndian2Int(substr($atom_data, 0, 4)); break; case 'hint': // HINT track case 'hinf': // case 'hinv': // case 'hnti': // $info['quicktime']['hinting'] = true; break; case 'imgt': // IMaGe Track reference (kQTVRImageTrackRefType) (seen on QTVR) for ($i = 0; $i < ($atom_structure['size'] - 8); $i += 4) { $atom_structure['imgt'][] = getid3_lib::BigEndian2Int(substr($atom_data, $i, 4)); } break; case 'FXTC': // Something to do with Adobe After Effects (?) case 'PrmA': case 'code': case 'FIEL': // this is NOT "fiel" (Field Ordering) as describe here: http://developer.apple.com/documentation/QuickTime/QTFF/QTFFChap3/chapter_4_section_2.html // Observed-but-not-handled atom types are just listed here // to prevent warnings being generated $atom_structure['data'] = $atom_data; break; default: $getid3->warning('Unknown QuickTime atom type: "'.$atom_name.'" at offset '.$base_offset); $atom_structure['data'] = $atom_data; break; } array_pop($atom_hierarchy); return $atom_structure; } private function QuicktimeParseContainerAtom($atom_data, $base_offset, &$atom_hierarchy) { if ((strlen($atom_data) == 4) && (getid3_lib::BigEndian2Int($atom_data) == 0x00000000)) { return false; } $atom_structure = false; $subatom_offset = 0; while ($subatom_offset < strlen($atom_data)) { $subatom_size = getid3_lib::BigEndian2Int(substr($atom_data, $subatom_offset + 0, 4)); $subatom_name = substr($atom_data, $subatom_offset + 4, 4); $subatom_data = substr($atom_data, $subatom_offset + 8, $subatom_size - 8); if ($subatom_size == 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. return $atom_structure; } $atom_structure[] = $this->QuicktimeParseAtom($subatom_name, $subatom_size, $subatom_data, $base_offset + $subatom_offset, $atom_hierarchy); $subatom_offset += $subatom_size; } return $atom_structure; } private function CopyToAppropriateCommentsSection($key_name, $data) { // http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt static $translator = array ( '©cpy' => 'copyright', '©day' => 'creation_date', '©dir' => 'director', '©ed1' => 'edit1', '©ed2' => 'edit2', '©ed3' => 'edit3', '©ed4' => 'edit4', '©ed5' => 'edit5', '©ed6' => 'edit6', '©ed7' => 'edit7', '©ed8' => 'edit8', '©ed9' => 'edit9', '©fmt' => 'format', '©inf' => 'information', '©prd' => 'producer', '©prf' => 'performers', '©req' => 'system_requirements', '©src' => 'source_credit', '©wrt' => 'writer', '©nam' => 'title', '©cmt' => 'comment', '©wrn' => 'warning', '©hst' => 'host_computer', '©mak' => 'make', '©mod' => 'model', '©PRD' => 'product', '©swr' => 'software', '©aut' => 'author', '©ART' => 'artist', '©trk' => 'track', '©alb' => 'album', '©com' => 'comment', '©gen' => 'genre', '©ope' => 'composer', '©url' => 'url', '©enc' => 'encoder' ); if (isset($translator[$key_name])) { $this->getid3->info['quicktime']['comments'][$translator[$key_name]][] = $data; } return true; } public static function QuicktimeLanguageLookup($language_id) { static $lookup = array ( 0 => 'English', 1 => 'French', 2 => 'German', 3 => 'Italian', 4 => 'Dutch', 5 => 'Swedish', 6 => 'Spanish', 7 => 'Danish', 8 => 'Portuguese', 9 => 'Norwegian', 10 => 'Hebrew', 11 => 'Japanese', 12 => 'Arabic', 13 => 'Finnish', 14 => 'Greek', 15 => 'Icelandic', 16 => 'Maltese', 17 => 'Turkish', 18 => 'Croatian', 19 => 'Chinese (Traditional)', 20 => 'Urdu', 21 => 'Hindi', 22 => 'Thai', 23 => 'Korean', 24 => 'Lithuanian', 25 => 'Polish', 26 => 'Hungarian', 27 => 'Estonian', 28 => 'Lettish', 28 => 'Latvian', 29 => 'Saamisk', 29 => 'Lappish', 30 => 'Faeroese', 31 => 'Farsi', 31 => 'Persian', 32 => 'Russian', 33 => 'Chinese (Simplified)', 34 => 'Flemish', 35 => 'Irish', 36 => 'Albanian', 37 => 'Romanian', 38 => 'Czech', 39 => 'Slovak', 40 => 'Slovenian', 41 => 'Yiddish', 42 => 'Serbian', 43 => 'Macedonian', 44 => 'Bulgarian', 45 => 'Ukrainian', 46 => 'Byelorussian', 47 => 'Uzbek', 48 => 'Kazakh', 49 => 'Azerbaijani', 50 => 'AzerbaijanAr', 51 => 'Armenian', 52 => 'Georgian', 53 => 'Moldavian', 54 => 'Kirghiz', 55 => 'Tajiki', 56 => 'Turkmen', 57 => 'Mongolian', 58 => 'MongolianCyr', 59 => 'Pashto', 60 => 'Kurdish', 61 => 'Kashmiri', 62 => 'Sindhi', 63 => 'Tibetan', 64 => 'Nepali', 65 => 'Sanskrit', 66 => 'Marathi', 67 => 'Bengali', 68 => 'Assamese', 69 => 'Gujarati', 70 => 'Punjabi', 71 => 'Oriya', 72 => 'Malayalam', 73 => 'Kannada', 74 => 'Tamil', 75 => 'Telugu', 76 => 'Sinhalese', 77 => 'Burmese', 78 => 'Khmer', 79 => 'Lao', 80 => 'Vietnamese', 81 => 'Indonesian', 82 => 'Tagalog', 83 => 'MalayRoman', 84 => 'MalayArabic', 85 => 'Amharic', 86 => 'Tigrinya', 87 => 'Galla', 87 => 'Oromo', 88 => 'Somali', 89 => 'Swahili', 90 => 'Ruanda', 91 => 'Rundi', 92 => 'Chewa', 93 => 'Malagasy', 94 => 'Esperanto', 128 => 'Welsh', 129 => 'Basque', 130 => 'Catalan', 131 => 'Latin', 132 => 'Quechua', 133 => 'Guarani', 134 => 'Aymara', 135 => 'Tatar', 136 => 'Uighur', 137 => 'Dzongkha', 138 => 'JavaneseRom' ); return (isset($lookup[$language_id]) ? $lookup[$language_id] : 'invalid'); } public static function QuicktimeVideoCodecLookup($codec_id) { static $lookup = array ( '3IVX' => '3ivx MPEG-4', '3IV1' => '3ivx MPEG-4 v1', '3IV2' => '3ivx MPEG-4 v2', 'avr ' => 'AVR-JPEG', 'base' => 'Base', 'WRLE' => 'BMP', 'cvid' => 'Cinepak', 'clou' => 'Cloud', 'cmyk' => 'CMYK', 'yuv2' => 'ComponentVideo', 'yuvu' => 'ComponentVideoSigned', 'yuvs' => 'ComponentVideoUnsigned', 'dvc ' => 'DVC-NTSC', 'dvcp' => 'DVC-PAL', 'dvpn' => 'DVCPro-NTSC', 'dvpp' => 'DVCPro-PAL', 'fire' => 'Fire', 'flic' => 'FLC', 'b48r' => '48RGB', 'gif ' => 'GIF', 'smc ' => 'Graphics', 'h261' => 'H261', 'h263' => 'H263', 'IV41' => 'Indeo4', 'jpeg' => 'JPEG', 'PNTG' => 'MacPaint', 'msvc' => 'Microsoft Video1', 'mjpa' => 'Motion JPEG-A', 'mjpb' => 'Motion JPEG-B', 'myuv' => 'MPEG YUV420', 'dmb1' => 'OpenDML JPEG', 'kpcd' => 'PhotoCD', '8BPS' => 'Planar RGB', 'png ' => 'PNG', 'qdrw' => 'QuickDraw', 'qdgx' => 'QuickDrawGX', 'raw ' => 'RAW', '.SGI' => 'SGI', 'b16g' => '16Gray', 'b64a' => '64ARGB', 'SVQ1' => 'Sorenson Video 1', 'SVQ1' => 'Sorenson Video 3', 'syv9' => 'Sorenson YUV9', 'tga ' => 'Targa', 'b32a' => '32AlphaGray', 'tiff' => 'TIFF', 'path' => 'Vector', 'rpza' => 'Video', 'ripl' => 'WaterRipple', 'WRAW' => 'Windows RAW', 'y420' => 'YUV420' ); return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : ''); } public static function QuicktimeAudioCodecLookup($codec_id) { static $lookup = array ( '.mp3' => 'Fraunhofer MPEG Layer-III alias', 'aac ' => 'ISO/IEC 14496-3 AAC', 'agsm' => 'Apple GSM 10:1', 'alac' => 'Apple Lossless Audio Codec', 'alaw' => 'A-law 2:1', 'conv' => 'Sample Format', 'dvca' => 'DV', 'dvi ' => 'DV 4:1', 'eqal' => 'Frequency Equalizer', 'fl32' => '32-bit Floating Point', 'fl64' => '64-bit Floating Point', 'ima4' => 'Interactive Multimedia Association 4:1', 'in24' => '24-bit Integer', 'in32' => '32-bit Integer', 'lpc ' => 'LPC 23:1', 'MAC3' => 'Macintosh Audio Compression/Expansion (MACE) 3:1', 'MAC6' => 'Macintosh Audio Compression/Expansion (MACE) 6:1', 'mixb' => '8-bit Mixer', 'mixw' => '16-bit Mixer', 'mp4a' => 'ISO/IEC 14496-3 AAC', "MS'\x00\x02" => 'Microsoft ADPCM', "MS'\x00\x11" => 'DV IMA', "MS\x00\x55" => 'Fraunhofer MPEG Layer III', 'NONE' => 'No Encoding', 'Qclp' => 'Qualcomm PureVoice', 'QDM2' => 'QDesign Music 2', 'QDMC' => 'QDesign Music 1', 'ratb' => '8-bit Rate', 'ratw' => '16-bit Rate', 'raw ' => 'raw PCM', 'sour' => 'Sound Source', 'sowt' => 'signed/two\'s complement (Little Endian)', 'str1' => 'Iomega MPEG layer II', 'str2' => 'Iomega MPEG *layer II', 'str3' => 'Iomega MPEG **layer II', 'str4' => 'Iomega MPEG ***layer II', 'twos' => 'signed/two\'s complement (Big Endian)', 'ulaw' => 'mu-law 2:1', ); return (isset($lookup[$codec_id]) ? $lookup[$codec_id] : ''); } public static function QuicktimeDCOMLookup($compression_id) { static $lookup = array ( 'zlib' => 'ZLib Deflate', 'adec' => 'Apple Compression' ); return (isset($lookup[$compression_id]) ? $lookup[$compression_id] : ''); } public static function QuicktimeColorNameLookup($color_depth_id) { static $lookup = array ( 1 => '2-color (monochrome)', 2 => '4-color', 4 => '16-color', 8 => '256-color', 16 => 'thousands (16-bit color)', 24 => 'millions (24-bit color)', 32 => 'millions+ (32-bit color)', 33 => 'black & white', 34 => '4-gray', 36 => '16-gray', 40 => '256-gray', ); return (isset($lookup[$color_depth_id]) ? $lookup[$color_depth_id] : 'invalid'); } public static function NoNullString($null_terminated_string) { // remove the single null terminator on null terminated strings if (substr($null_terminated_string, strlen($null_terminated_string) - 1, 1) === "\x00") { return substr($null_terminated_string, 0, strlen($null_terminated_string) - 1); } return $null_terminated_string; } public static function FixedPoint8_8($raw_data) { return getid3_lib::BigEndian2Int($raw_data{0}) + (float)(getid3_lib::BigEndian2Int($raw_data{1}) / 256); } public static function FixedPoint16_16($raw_data) { return getid3_lib::BigEndian2Int(substr($raw_data, 0, 2)) + (float)(getid3_lib::BigEndian2Int(substr($raw_data, 2, 2)) / 65536); } public static function FixedPoint2_30($raw_data) { $binary_string = getid3_lib::BigEndian2Bin($raw_data); return bindec(substr($binary_string, 0, 2)) + (float)(bindec(substr($binary_string, 2, 30)) / 1073741824); } } ?>