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author | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2007-04-23 07:31:05 +0000 |
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committer | Karl 'vollmerk' Vollmer <vollmer@ampache.org> | 2007-04-23 07:31:05 +0000 |
commit | a31560aec4f004e58930277758f5412d86c62adc (patch) | |
tree | 845ff6947d26b22a0f4527901dbefc97bca89d78 /modules/getid3/module.audio-video.quicktime.php | |
parent | 8b27d66add7ca9ba57d7e9488612cb54be4b11c1 (diff) | |
download | ampache-a31560aec4f004e58930277758f5412d86c62adc.tar.gz ampache-a31560aec4f004e58930277758f5412d86c62adc.tar.bz2 ampache-a31560aec4f004e58930277758f5412d86c62adc.zip |
it technically logs in and streams.. but thats it, complete rewrite almost everything broken
Diffstat (limited to 'modules/getid3/module.audio-video.quicktime.php')
-rw-r--r-- | modules/getid3/module.audio-video.quicktime.php | 1529 |
1 files changed, 1529 insertions, 0 deletions
diff --git a/modules/getid3/module.audio-video.quicktime.php b/modules/getid3/module.audio-video.quicktime.php new file mode 100644 index 00000000..559c1065 --- /dev/null +++ b/modules/getid3/module.audio-video.quicktime.php @@ -0,0 +1,1529 @@ +<?php +// +----------------------------------------------------------------------+ +// | PHP version 5 | +// +----------------------------------------------------------------------+ +// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen | +// +----------------------------------------------------------------------+ +// | This source file is subject to version 2 of the GPL license, | +// | that is bundled with this package in the file license.txt and is | +// | available through the world-wide-web at the following url: | +// | http://www.gnu.org/copyleft/gpl.html | +// +----------------------------------------------------------------------+ +// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org | +// +----------------------------------------------------------------------+ +// | Authors: James Heinrich <infoØgetid3*org> | +// | Allan Hansen <ahØartemis*dk> | +// +----------------------------------------------------------------------+ +// | 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['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; + $frame_rate_calculator_array = array (); + for ($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)); + $stts_entries_data_offset += 4; + + if (!empty($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']; + } + /* + $stts_frames_total = 0; + $stts_seconds_total = 0; + foreach ($frame_rate_calculator_array as $frames_per_second => $frame_count) { + if (($frames_per_second > 60) || ($frames_per_second < 1)) { + // not video FPS information, probably audio information + $stts_frames_total = 0; + $stts_seconds_total = 0; + break; + } + $stts_frames_total += $frame_count; + $stts_seconds_total += $frame_count / $frames_per_second; + } + if (($stts_frames_total > 0) && ($stts_seconds_total > 0)) { + if (($stts_frames_total / $stts_seconds_total) > @$info['video']['frame_rate']) { + $info['video']['frame_rate'] = $stts_frames_total / $stts_seconds_total; + } + } + */ + 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); + } + +} + +?>
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