function QuicktimeParseAtom($atomname, $atomsize, $atomdata, &$ThisFileInfo, $baseoffset, &$atomHierarchy)
{
// http://developer.apple.com/techpubs/quicktime/qtdevdocs/APIREF/INDEX/atomalphaindex.htm
array_push($atomHierarchy, $atomname);
$atomstructure['hierarchy'] = implode(' ', $atomHierarchy);
$atomstructure['name'] = $atomname;
$atomstructure['size'] = $atomsize;
$atomstructure['offset'] = $baseoffset;
switch ($atomname) {
case 'moov':
// MOVie container atom
// MOVie container atom
case 'trak':
// TRAcK container atom
// TRAcK container atom
case 'clip':
// CLIPping container atom
// CLIPping container atom
case 'matt':
// track MATTe container atom
// track MATTe container atom
case 'edts':
// EDiTS container atom
// EDiTS container atom
case 'tref':
// Track REFerence container atom
// Track REFerence container atom
case 'mdia':
// MeDIA container atom
// MeDIA container atom
case 'minf':
// Media INFormation container atom
// Media INFormation container atom
case 'dinf':
// Data INFormation container atom
// Data INFormation container atom
case 'udta':
// User DaTA container atom
// User DaTA container atom
case 'stbl':
// Sample TaBLe container atom
// Sample TaBLe container atom
case 'cmov':
// Compressed MOVie container atom
// Compressed MOVie container atom
case 'rmra':
// Reference Movie Record Atom
// Reference Movie Record Atom
case 'rmda':
// Reference Movie Descriptor Atom
$atomstructure['subatoms'] = QuicktimeParseContainerAtom($atomdata, $ThisFileInfo, $baseoffset + 8, $atomHierarchy);
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':
$atomstructure['data_length'] = BigEndian2Int(substr($atomdata, 0, 2));
$atomstructure['language_id'] = BigEndian2Int(substr($atomdata, 2, 2));
$atomstructure['data'] = substr($atomdata, 4);
$atomstructure['language'] = QuicktimeLanguageLookup($atomstructure['language_id']);
$handyatomtranslatorarray['©cpy'] = 'copyright';
$handyatomtranslatorarray['©day'] = 'creation_date';
$handyatomtranslatorarray['©dir'] = 'director';
$handyatomtranslatorarray['©ed1'] = 'edit1';
$handyatomtranslatorarray['©ed2'] = 'edit2';
$handyatomtranslatorarray['©ed3'] = 'edit3';
$handyatomtranslatorarray['©ed4'] = 'edit4';
$handyatomtranslatorarray['©ed5'] = 'edit5';
$handyatomtranslatorarray['©ed6'] = 'edit6';
$handyatomtranslatorarray['©ed7'] = 'edit7';
$handyatomtranslatorarray['©ed8'] = 'edit8';
$handyatomtranslatorarray['©ed9'] = 'edit9';
$handyatomtranslatorarray['©fmt'] = 'format';
$handyatomtranslatorarray['©inf'] = 'information';
$handyatomtranslatorarray['©prd'] = 'producer';
$handyatomtranslatorarray['©prf'] = 'performers';
$handyatomtranslatorarray['©req'] = 'system_requirements';
$handyatomtranslatorarray['©src'] = 'source_credit';
$handyatomtranslatorarray['©wrt'] = 'writer';
// http://www.geocities.com/xhelmboyx/quicktime/formats/qtm-layout.txt
$handyatomtranslatorarray['©nam'] = 'title';
$handyatomtranslatorarray['©cmt'] = 'comment';
$handyatomtranslatorarray['©wrn'] = 'warning';
$handyatomtranslatorarray['©hst'] = 'host_computer';
$handyatomtranslatorarray['©mak'] = 'make';
$handyatomtranslatorarray['©mod'] = 'model';
$handyatomtranslatorarray['©PRD'] = 'product';
$handyatomtranslatorarray['©swr'] = 'software';
$handyatomtranslatorarray['©aut'] = 'author';
$handyatomtranslatorarray['©ART'] = 'artist';
$handyatomtranslatorarray['©trk'] = 'track';
$handyatomtranslatorarray['©alb'] = 'album';
$handyatomtranslatorarray['©com'] = 'comment';
$handyatomtranslatorarray['©gen'] = 'genre';
$handyatomtranslatorarray['©ope'] = 'composer';
$handyatomtranslatorarray['©url'] = 'url';
$handyatomtranslatorarray['©enc'] = 'encoder';
if (isset($handyatomtranslatorarray["{$atomname}"])) {
$ThisFileInfo['quicktime']['comments'][$handyatomtranslatorarray["{$atomname}"]][] = $atomstructure['data'];
}
break;
case 'play':
// auto-PLAY atom
$atomstructure['autoplay'] = (bool) BigEndian2Int(substr($atomdata, 0, 1));
$ThisFileInfo['quicktime']['autoplay'] = $atomstructure['autoplay'];
break;
case 'WLOC':
// Window LOCation atom
$atomstructure['location_x'] = BigEndian2Int(substr($atomdata, 0, 2));
$atomstructure['location_y'] = BigEndian2Int(substr($atomdata, 2, 2));
break;
case 'LOOP':
// LOOPing atom
// LOOPing atom
case 'SelO':
// play SELection Only atom
// play SELection Only atom
case 'AllF':
// play ALL Frames atom
$atomstructure['data'] = BigEndian2Int($atomdata);
break;
case 'name':
//
//
case 'MCPS':
// Media Cleaner PRo
// Media Cleaner PRo
case '@PRM':
// adobe PReMiere version
// adobe PReMiere version
case '@PRQ':
// adobe PRemiere Quicktime version
$atomstructure['data'] = $atomdata;
break;
case 'cmvd':
// Compressed MooV Data atom
$ThisFileInfo['warning'] .= "\n" . 'Compressed Quicktime MOOV Data atoms ("cmvd") not supported';
break;
case 'dcom':
// Data COMpression atom
$atomstructure['compression_id'] = $atomdata;
$atomstructure['compression_text'] = QuicktimeDCOMLookup($atomdata);
break;
case 'rdrf':
// Reference movie Data ReFerence atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
$atomstructure['flags']['internal_data'] = (bool) ($atomstructure['flags_raw'] & 0x1);
$atomstructure['reference_type_name'] = substr($atomdata, 4, 4);
$atomstructure['reference_length'] = BigEndian2Int(substr($atomdata, 8, 4));
switch ($atomstructure['reference_type_name']) {
case 'url ':
$atomstructure['url'] = NoNullString(substr($atomdata, 12));
break;
case 'alis':
$atomstructure['file_alias'] = substr($atomdata, 12);
break;
case 'rsrc':
$atomstructure['resource_alias'] = substr($atomdata, 12);
break;
default:
$atomstructure['data'] = substr($atomdata, 12);
break;
}
break;
case 'rmqu':
// Reference Movie QUality atom
$atomstructure['movie_quality'] = BigEndian2Int($atomdata);
break;
case 'rmcs':
// Reference Movie Cpu Speed atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['cpu_speed_rating'] = BigEndian2Int(substr($atomdata, 4, 2));
break;
case 'rmvc':
// Reference Movie Version Check atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['gestalt_selector'] = substr($atomdata, 4, 4);
$atomstructure['gestalt_value_mask'] = BigEndian2Int(substr($atomdata, 8, 4));
$atomstructure['gestalt_value'] = BigEndian2Int(substr($atomdata, 12, 4));
$atomstructure['gestalt_check_type'] = BigEndian2Int(substr($atomdata, 14, 2));
break;
case 'rmcd':
// Reference Movie Component check atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['component_type'] = substr($atomdata, 4, 4);
$atomstructure['component_subtype'] = substr($atomdata, 8, 4);
$atomstructure['component_manufacturer'] = substr($atomdata, 12, 4);
$atomstructure['component_flags_raw'] = BigEndian2Int(substr($atomdata, 16, 4));
$atomstructure['component_flags_mask'] = BigEndian2Int(substr($atomdata, 20, 4));
$atomstructure['component_min_version'] = BigEndian2Int(substr($atomdata, 24, 4));
break;
case 'rmdr':
// Reference Movie Data Rate atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['data_rate'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['data_rate_bps'] = $atomstructure['data_rate'] * 10;
break;
case 'rmla':
// Reference Movie Language Atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['language_id'] = BigEndian2Int(substr($atomdata, 4, 2));
$atomstructure['language'] = QuicktimeLanguageLookup($atomstructure['language_id']);
break;
case 'rmla':
// Reference Movie Language Atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['track_id'] = BigEndian2Int(substr($atomdata, 4, 2));
break;
case 'stsd':
// Sample Table Sample Description atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$stsdEntriesDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['sample_description_table'][$i]['size'] = BigEndian2Int(substr($atomdata, $stsdEntriesDataOffset, 4));
$stsdEntriesDataOffset += 4;
$atomstructure['sample_description_table'][$i]['data_format'] = substr($atomdata, $stsdEntriesDataOffset, 4);
$stsdEntriesDataOffset += 4;
$atomstructure['sample_description_table'][$i]['reserved'] = BigEndian2Int(substr($atomdata, $stsdEntriesDataOffset, 6));
$stsdEntriesDataOffset += 6;
$atomstructure['sample_description_table'][$i]['reference_index'] = BigEndian2Int(substr($atomdata, $stsdEntriesDataOffset, 2));
$stsdEntriesDataOffset += 2;
$atomstructure['sample_description_table'][$i]['data'] = substr($atomdata, $stsdEntriesDataOffset, $atomstructure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2);
$stsdEntriesDataOffset += $atomstructure['sample_description_table'][$i]['size'] - 4 - 4 - 6 - 2;
$atomstructure['sample_description_table'][$i]['encoder_version'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 0, 2));
$atomstructure['sample_description_table'][$i]['encoder_revision'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 2, 2));
$atomstructure['sample_description_table'][$i]['encoder_vendor'] = substr($atomstructure['sample_description_table'][$i]['data'], 4, 4);
if ($atomstructure['sample_description_table'][$i]['encoder_vendor'] == chr(0) . chr(0) . chr(0) . chr(0)) {
// audio atom
$atomstructure['sample_description_table'][$i]['audio_channels'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 8, 2));
$atomstructure['sample_description_table'][$i]['audio_bit_depth'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 10, 2));
$atomstructure['sample_description_table'][$i]['audio_compression_id'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 12, 2));
$atomstructure['sample_description_table'][$i]['audio_packet_size'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 14, 2));
$atomstructure['sample_description_table'][$i]['audio_sample_rate'] = FixedPoint16_16(substr($atomstructure['sample_description_table'][$i]['data'], 16, 4));
$ThisFileInfo['quicktime']['audio']['codec'] = QuicktimeAudioCodecLookup($atomstructure['sample_description_table'][$i]['data_format']);
$ThisFileInfo['quicktime']['audio']['sample_rate'] = $atomstructure['sample_description_table'][$i]['audio_sample_rate'];
$ThisFileInfo['quicktime']['audio']['channels'] = $atomstructure['sample_description_table'][$i]['audio_channels'];
$ThisFileInfo['quicktime']['audio']['bit_depth'] = $atomstructure['sample_description_table'][$i]['audio_bit_depth'];
$ThisFileInfo['audio']['codec'] = $ThisFileInfo['quicktime']['audio']['codec'];
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['quicktime']['audio']['sample_rate'];
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['quicktime']['audio']['channels'];
$ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['quicktime']['audio']['bit_depth'];
} else {
// video atom
$atomstructure['sample_description_table'][$i]['video_temporal_quality'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 8, 4));
$atomstructure['sample_description_table'][$i]['video_spatial_quality'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 12, 4));
$atomstructure['sample_description_table'][$i]['video_frame_width'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 16, 2));
$atomstructure['sample_description_table'][$i]['video_frame_height'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 18, 2));
$atomstructure['sample_description_table'][$i]['video_resolution_x'] = FixedPoint16_16(substr($atomstructure['sample_description_table'][$i]['data'], 20, 4));
$atomstructure['sample_description_table'][$i]['video_resolution_y'] = FixedPoint16_16(substr($atomstructure['sample_description_table'][$i]['data'], 24, 4));
$atomstructure['sample_description_table'][$i]['video_data_size'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 28, 4));
$atomstructure['sample_description_table'][$i]['video_frame_count'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 32, 2));
$atomstructure['sample_description_table'][$i]['video_encoder_name_len'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 34, 1));
$atomstructure['sample_description_table'][$i]['video_encoder_name'] = substr($atomstructure['sample_description_table'][$i]['data'], 35, $atomstructure['sample_description_table'][$i]['video_encoder_name_len']);
$atomstructure['sample_description_table'][$i]['video_pixel_color_depth'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 66, 2));
$atomstructure['sample_description_table'][$i]['video_color_table_id'] = BigEndian2Int(substr($atomstructure['sample_description_table'][$i]['data'], 68, 2));
$atomstructure['sample_description_table'][$i]['video_pixel_color_type'] = $atomstructure['sample_description_table'][$i]['video_pixel_color_depth'] > 32 ? 'grayscale' : 'color';
$atomstructure['sample_description_table'][$i]['video_pixel_color_name'] = QuicktimeColorNameLookup($atomstructure['sample_description_table'][$i]['video_pixel_color_depth']);
if ($atomstructure['sample_description_table'][$i]['video_pixel_color_name'] != 'invalid') {
//$ThisFileInfo['quicktime']['video']['codec'] = QuicktimeVideoCodecLookup($atomstructure['sample_description_table'][$i]['data_format']);
$ThisFileInfo['quicktime']['video']['codec'] = $atomstructure['sample_description_table'][$i]['video_encoder_name'];
$ThisFileInfo['quicktime']['video']['color_depth'] = $atomstructure['sample_description_table'][$i]['video_pixel_color_depth'];
$ThisFileInfo['quicktime']['video']['color_depth_name'] = $atomstructure['sample_description_table'][$i]['video_pixel_color_name'];
$ThisFileInfo['video']['codec'] = $ThisFileInfo['quicktime']['video']['codec'];
}
}
switch ($atomstructure['sample_description_table'][$i]['data_format']) {
case 'mp4a':
$ThisFileInfo['fileformat'] = 'mp4';
$ThisFileInfo['mime_type'] = 'audio/mp4';
unset($ThisFileInfo['video']['dataformat']);
break;
default:
// do nothing
break;
}
unset($atomstructure['sample_description_table'][$i]['data']);
}
break;
case 'stts':
// Sample Table Time-to-Sample atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$sttsEntriesDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['time_to_sample_table'][$i]['sample_count'] = BigEndian2Int(substr($atomdata, $sttsEntriesDataOffset, 4));
$sttsEntriesDataOffset += 4;
$atomstructure['time_to_sample_table'][$i]['sample_duration'] = BigEndian2Int(substr($atomdata, $sttsEntriesDataOffset, 4));
$sttsEntriesDataOffset += 4;
}
break;
case 'stss':
// Sample Table Sync Sample (key frames) atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$stssEntriesDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['time_to_sample_table'][$i] = BigEndian2Int(substr($atomdata, $stssEntriesDataOffset, 4));
$stssEntriesDataOffset += 4;
}
break;
case 'stsc':
// Sample Table Sample-to-Chunk atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$stscEntriesDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['sample_to_chunk_table'][$i]['first_chunk'] = BigEndian2Int(substr($atomdata, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
$atomstructure['sample_to_chunk_table'][$i]['samples_per_chunk'] = BigEndian2Int(substr($atomdata, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
$atomstructure['sample_to_chunk_table'][$i]['sample_description'] = BigEndian2Int(substr($atomdata, $stscEntriesDataOffset, 4));
$stscEntriesDataOffset += 4;
}
break;
case 'stsz':
// Sample Table SiZe atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['sample_size'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 8, 4));
$stszEntriesDataOffset = 12;
if ($atomstructure['sample_size'] == 0) {
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['sample_size_table'][$i] = BigEndian2Int(substr($atomdata, $stszEntriesDataOffset, 4));
$stszEntriesDataOffset += 4;
}
}
break;
case 'stco':
// Sample Table Chunk Offset atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$stcoEntriesDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['chunk_offset_table'][$i] = BigEndian2Int(substr($atomdata, $stcoEntriesDataOffset, 4));
$stcoEntriesDataOffset += 4;
}
break;
case 'dref':
// Data REFerence atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
$drefDataOffset = 8;
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['data_references'][$i]['size'] = BigEndian2Int(substr($atomdata, $drefDataOffset, 4));
$drefDataOffset += 4;
$atomstructure['data_references'][$i]['type'] = substr($atomdata, $drefDataOffset, 4);
$drefDataOffset += 4;
$atomstructure['data_references'][$i]['version'] = BigEndian2Int(substr($atomdata, $drefDataOffset, 1));
$drefDataOffset += 1;
$atomstructure['data_references'][$i]['flags_raw'] = BigEndian2Int(substr($atomdata, $drefDataOffset, 3));
// hardcoded: 0x000
$drefDataOffset += 3;
$atomstructure['data_references'][$i]['data'] = substr($atomdata, $drefDataOffset, $atomstructure['data_references'][$i]['size'] - 4 - 4 - 1 - 3);
$drefDataOffset += $atomstructure['data_references'][$i]['size'] - 4 - 4 - 1 - 3;
$atomstructure['data_references'][$i]['flags']['self_reference'] = (bool) ($atomstructure['data_references'][$i]['flags_raw'] & 0x1);
}
break;
case 'gmin':
// base Media INformation atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['graphics_mode'] = BigEndian2Int(substr($atomdata, 4, 2));
$atomstructure['opcolor_red'] = BigEndian2Int(substr($atomdata, 6, 2));
$atomstructure['opcolor_green'] = BigEndian2Int(substr($atomdata, 8, 2));
$atomstructure['opcolor_blue'] = BigEndian2Int(substr($atomdata, 10, 2));
$atomstructure['balance'] = BigEndian2Int(substr($atomdata, 12, 2));
$atomstructure['reserved'] = BigEndian2Int(substr($atomdata, 14, 2));
break;
case 'smhd':
// Sound Media information HeaDer atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['balance'] = BigEndian2Int(substr($atomdata, 4, 2));
$atomstructure['reserved'] = BigEndian2Int(substr($atomdata, 6, 2));
break;
case 'vmhd':
// Video Media information HeaDer atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
$atomstructure['graphics_mode'] = BigEndian2Int(substr($atomdata, 4, 2));
$atomstructure['opcolor_red'] = BigEndian2Int(substr($atomdata, 6, 2));
$atomstructure['opcolor_green'] = BigEndian2Int(substr($atomdata, 8, 2));
$atomstructure['opcolor_blue'] = BigEndian2Int(substr($atomdata, 10, 2));
$atomstructure['flags']['no_lean_ahead'] = (bool) ($atomstructure['flags_raw'] & 0x1);
break;
case 'hdlr':
// HanDLeR reference atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['component_type'] = substr($atomdata, 4, 4);
$atomstructure['component_subtype'] = substr($atomdata, 8, 4);
$atomstructure['component_manufacturer'] = substr($atomdata, 12, 4);
$atomstructure['component_flags_raw'] = BigEndian2Int(substr($atomdata, 16, 4));
$atomstructure['component_flags_mask'] = BigEndian2Int(substr($atomdata, 20, 4));
$atomstructure['component_name'] = Pascal2String(substr($atomdata, 24));
break;
case 'mdhd':
// MeDia HeaDer atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['creation_time'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['modify_time'] = BigEndian2Int(substr($atomdata, 8, 4));
$atomstructure['time_scale'] = BigEndian2Int(substr($atomdata, 12, 4));
$atomstructure['duration'] = BigEndian2Int(substr($atomdata, 16, 4));
$atomstructure['language_id'] = BigEndian2Int(substr($atomdata, 20, 2));
$atomstructure['quality'] = BigEndian2Int(substr($atomdata, 22, 2));
if ($atomstructure['time_scale'] == 0) {
$ThisFileInfo['error'] .= "\n" . 'Corrupt Quicktime file: mdhd.time_scale == zero';
return false;
}
$atomstructure['creation_time_unix'] = DateMac2Unix($atomstructure['creation_time']);
$atomstructure['modify_time_unix'] = DateMac2Unix($atomstructure['modify_time']);
$atomstructure['playtime_seconds'] = $atomstructure['duration'] / $atomstructure['time_scale'];
$atomstructure['language'] = QuicktimeLanguageLookup($atomstructure['language_id']);
break;
case 'pnot':
// Preview atom
$atomstructure['modification_date'] = BigEndian2Int(substr($atomdata, 0, 4));
// "standard Macintosh format"
$atomstructure['version_number'] = BigEndian2Int(substr($atomdata, 4, 2));
// hardcoded: 0x00
$atomstructure['atom_type'] = substr($atomdata, 6, 4);
// usually: 'PICT'
$atomstructure['atom_index'] = BigEndian2Int(substr($atomdata, 10, 2));
// usually: 0x01
$atomstructure['modification_date_unix'] = DateMac2Unix($atomstructure['modification_date']);
break;
case 'crgn':
// Clipping ReGioN atom
$atomstructure['region_size'] = BigEndian2Int(substr($atomdata, 0, 2));
// The Region size, Region boundary box,
$atomstructure['boundary_box'] = BigEndian2Int(substr($atomdata, 2, 8));
// and Clipping region data fields
$atomstructure['clipping_data'] = substr($atomdata, 10);
// constitute a QuickDraw region.
break;
case 'load':
// track LOAD settings atom
$atomstructure['preload_start_time'] = BigEndian2Int(substr($atomdata, 0, 4));
$atomstructure['preload_duration'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['preload_flags_raw'] = BigEndian2Int(substr($atomdata, 8, 4));
$atomstructure['default_hints_raw'] = BigEndian2Int(substr($atomdata, 12, 4));
$atomstructure['default_hints']['double_buffer'] = (bool) ($atomstructure['default_hints_raw'] & 0x20);
$atomstructure['default_hints']['high_quality'] = (bool) ($atomstructure['default_hints_raw'] & 0x100);
break;
case 'tmcd':
// TiMe CoDe atom
// TiMe CoDe atom
case 'chap':
// CHAPter list atom
// CHAPter list atom
case 'sync':
// SYNChronization atom
// SYNChronization atom
case 'scpt':
// tranSCriPT atom
// tranSCriPT atom
case 'ssrc':
// non-primary SouRCe atom
for ($i = 0; $i < strlen($atomdata) % 4; $i++) {
$atomstructure['track_id'][$i] = BigEndian2Int(substr($atomdata, $i * 4, 4));
}
break;
case 'elst':
// Edit LiST atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['number_entries'] = BigEndian2Int(substr($atomdata, 4, 4));
for ($i = 0; $i < $atomstructure['number_entries']; $i++) {
$atomstructure['edit_list'][$i]['track_duration'] = BigEndian2Int(substr($atomdata, 8 + $i * 12 + 0, 4));
$atomstructure['edit_list'][$i]['media_time'] = BigEndian2Int(substr($atomdata, 8 + $i * 12 + 4, 4));
$atomstructure['edit_list'][$i]['media_rate'] = BigEndian2Int(substr($atomdata, 8 + $i * 12 + 8, 4));
}
break;
case 'kmat':
// compressed MATte atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
// hardcoded: 0x000
$atomstructure['matte_data_raw'] = substr($atomdata, 4);
break;
case 'ctab':
// Color TABle atom
$atomstructure['color_table_seed'] = BigEndian2Int(substr($atomdata, 0, 4));
// hardcoded: 0x00000000
$atomstructure['color_table_flags'] = BigEndian2Int(substr($atomdata, 4, 2));
// hardcoded: 0x8000
$atomstructure['color_table_size'] = BigEndian2Int(substr($atomdata, 6, 2)) + 1;
for ($colortableentry = 0; $colortableentry < $atomstructure['color_table_size']; $colortableentry++) {
$atomstructure['color_table'][$colortableentry]['alpha'] = BigEndian2Int(substr($atomdata, 8 + $colortableentry * 8 + 0, 2));
$atomstructure['color_table'][$colortableentry]['red'] = BigEndian2Int(substr($atomdata, 8 + $colortableentry * 8 + 2, 2));
$atomstructure['color_table'][$colortableentry]['green'] = BigEndian2Int(substr($atomdata, 8 + $colortableentry * 8 + 4, 2));
$atomstructure['color_table'][$colortableentry]['blue'] = BigEndian2Int(substr($atomdata, 8 + $colortableentry * 8 + 6, 2));
}
break;
case 'mvhd':
// MoVie HeaDer atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
$atomstructure['creation_time'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['modify_time'] = BigEndian2Int(substr($atomdata, 8, 4));
$atomstructure['time_scale'] = BigEndian2Int(substr($atomdata, 12, 4));
$atomstructure['duration'] = BigEndian2Int(substr($atomdata, 16, 4));
$atomstructure['preferred_rate'] = FixedPoint16_16(substr($atomdata, 20, 4));
$atomstructure['preferred_volume'] = FixedPoint8_8(substr($atomdata, 24, 2));
$atomstructure['reserved'] = substr($atomdata, 26, 10);
$atomstructure['matrix_a'] = FixedPoint16_16(substr($atomdata, 36, 4));
$atomstructure['matrix_b'] = FixedPoint16_16(substr($atomdata, 40, 4));
$atomstructure['matrix_u'] = FixedPoint16_16(substr($atomdata, 44, 4));
$atomstructure['matrix_c'] = FixedPoint16_16(substr($atomdata, 48, 4));
$atomstructure['matrix_v'] = FixedPoint16_16(substr($atomdata, 52, 4));
$atomstructure['matrix_d'] = FixedPoint16_16(substr($atomdata, 56, 4));
$atomstructure['matrix_x'] = FixedPoint2_30(substr($atomdata, 60, 4));
$atomstructure['matrix_y'] = FixedPoint2_30(substr($atomdata, 64, 4));
$atomstructure['matrix_w'] = FixedPoint2_30(substr($atomdata, 68, 4));
$atomstructure['preview_time'] = BigEndian2Int(substr($atomdata, 72, 4));
$atomstructure['preview_duration'] = BigEndian2Int(substr($atomdata, 76, 4));
$atomstructure['poster_time'] = BigEndian2Int(substr($atomdata, 80, 4));
$atomstructure['selection_time'] = BigEndian2Int(substr($atomdata, 84, 4));
$atomstructure['selection_duration'] = BigEndian2Int(substr($atomdata, 88, 4));
$atomstructure['current_time'] = BigEndian2Int(substr($atomdata, 92, 4));
$atomstructure['next_track_id'] = BigEndian2Int(substr($atomdata, 96, 4));
if ($atomstructure['time_scale'] == 0) {
$ThisFileInfo['error'] .= "\n" . 'Corrupt Quicktime file: mvhd.time_scale == zero';
return false;
}
$atomstructure['creation_time_unix'] = DateMac2Unix($atomstructure['creation_time']);
$atomstructure['modify_time_unix'] = DateMac2Unix($atomstructure['modify_time']);
$ThisFileInfo['quicktime']['time_scale'] = $atomstructure['time_scale'];
$ThisFileInfo['playtime_seconds'] = $atomstructure['duration'] / $atomstructure['time_scale'];
break;
case 'tkhd':
// TracK HeaDer atom
$atomstructure['version'] = BigEndian2Int(substr($atomdata, 0, 1));
$atomstructure['flags_raw'] = BigEndian2Int(substr($atomdata, 1, 3));
$atomstructure['creation_time'] = BigEndian2Int(substr($atomdata, 4, 4));
$atomstructure['modify_time'] = BigEndian2Int(substr($atomdata, 8, 4));
$atomstructure['trackid'] = BigEndian2Int(substr($atomdata, 12, 4));
$atomstructure['reserved1'] = BigEndian2Int(substr($atomdata, 16, 4));
$atomstructure['duration'] = BigEndian2Int(substr($atomdata, 20, 4));
$atomstructure['reserved2'] = BigEndian2Int(substr($atomdata, 24, 8));
$atomstructure['layer'] = BigEndian2Int(substr($atomdata, 32, 2));
$atomstructure['alternate_group'] = BigEndian2Int(substr($atomdata, 34, 2));
$atomstructure['volume'] = FixedPoint8_8(substr($atomdata, 36, 2));
$atomstructure['reserved3'] = BigEndian2Int(substr($atomdata, 38, 2));
$atomstructure['matrix_a'] = FixedPoint16_16(substr($atomdata, 40, 4));
$atomstructure['matrix_b'] = FixedPoint16_16(substr($atomdata, 44, 4));
$atomstructure['matrix_u'] = FixedPoint16_16(substr($atomdata, 48, 4));
$atomstructure['matrix_c'] = FixedPoint16_16(substr($atomdata, 52, 4));
$atomstructure['matrix_v'] = FixedPoint16_16(substr($atomdata, 56, 4));
$atomstructure['matrix_d'] = FixedPoint16_16(substr($atomdata, 60, 4));
$atomstructure['matrix_x'] = FixedPoint2_30(substr($atomdata, 64, 4));
$atomstructure['matrix_y'] = FixedPoint2_30(substr($atomdata, 68, 4));
$atomstructure['matrix_w'] = FixedPoint2_30(substr($atomdata, 72, 4));
$atomstructure['width'] = FixedPoint16_16(substr($atomdata, 76, 4));
$atomstructure['height'] = FixedPoint16_16(substr($atomdata, 80, 4));
$atomstructure['flags']['enabled'] = (bool) ($atomstructure['flags_raw'] & 0x1);
$atomstructure['flags']['in_movie'] = (bool) ($atomstructure['flags_raw'] & 0x2);
$atomstructure['flags']['in_preview'] = (bool) ($atomstructure['flags_raw'] & 0x4);
$atomstructure['flags']['in_poster'] = (bool) ($atomstructure['flags_raw'] & 0x8);
$atomstructure['creation_time_unix'] = DateMac2Unix($atomstructure['creation_time']);
$atomstructure['modify_time_unix'] = DateMac2Unix($atomstructure['modify_time']);
if (!isset($ThisFileInfo['video']['resolution_x']) || !isset($ThisFileInfo['video']['resolution_y'])) {
$ThisFileInfo['video']['resolution_x'] = $atomstructure['width'];
$ThisFileInfo['video']['resolution_y'] = $atomstructure['height'];
}
$ThisFileInfo['video']['resolution_x'] = max($ThisFileInfo['video']['resolution_x'], $atomstructure['width']);
$ThisFileInfo['video']['resolution_y'] = max($ThisFileInfo['video']['resolution_y'], $atomstructure['height']);
if (!empty($ThisFileInfo['video']['resolution_x']) && !empty($ThisFileInfo['video']['resolution_y'])) {
$ThisFileInfo['quicktime']['video']['resolution_x'] = $ThisFileInfo['video']['resolution_x'];
$ThisFileInfo['quicktime']['video']['resolution_y'] = $ThisFileInfo['video']['resolution_y'];
} else {
unset($ThisFileInfo['video']['resolution_x']);
unset($ThisFileInfo['video']['resolution_y']);
unset($ThisFileInfo['quicktime']['video']);
}
break;
case 'mdat':
// Media DATa atom
// Media DATa atom
case 'free':
// FREE space atom
// FREE space atom
case 'skip':
// SKIP atom
// 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;
default:
$ThisFileInfo['warning'] .= "\n" . 'Unknown QuickTime atom type: "' . $atomname . '" at offset ' . $baseoffset;
$atomstructure['data'] = $atomdata;
break;
}
array_pop($atomHierarchy);
return $atomstructure;
}
function getRIFFHeaderFilepointer(&$fd, &$ThisFileInfo)
{
$Original['avdataoffset'] = $ThisFileInfo['avdataoffset'];
$Original['avdataend'] = $ThisFileInfo['avdataend'];
fseek($fd, $ThisFileInfo['avdataoffset'], SEEK_SET);
$RIFFheader = fread($fd, 12);
switch (substr($RIFFheader, 0, 4)) {
case 'FORM':
$ThisFileInfo['fileformat'] = 'aiff';
$RIFFheaderSize = EitherEndian2Int($ThisFileInfo, substr($RIFFheader, 4, 4));
$ThisFileInfo['RIFF'][substr($RIFFheader, 8, 4)] = ParseRIFF($fd, $ThisFileInfo['avdataoffset'] + 12, $ThisFileInfo['avdataoffset'] + $RIFFheaderSize, $ThisFileInfo);
$ThisFileInfo['RIFF']['header_size'] = $RIFFheaderSize;
break;
case 'RIFF':
case 'SDSS':
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
// SDSS is identical to RIFF, just renamed. Used by SmartSound QuickTracks (www.smartsound.com)
case 'RMP3':
// RMP3 is identical to RIFF, just renamed. Used by [unknown program] when creating RIFF-MP3s
$RIFFtype = substr($RIFFheader, 8, 4);
if ($RIFFtype == 'RMP3') {
$RIFFtype == 'WAVE';
}
$ThisFileInfo['fileformat'] = 'riff';
$RIFFheaderSize = EitherEndian2Int($ThisFileInfo, substr($RIFFheader, 4, 4));
$ThisFileInfo['RIFF']["{$RIFFtype}"] = ParseRIFF($fd, $ThisFileInfo['avdataoffset'] + 12, $ThisFileInfo['avdataoffset'] + $RIFFheaderSize, $ThisFileInfo);
$ThisFileInfo['RIFF']['header_size'] = $RIFFheaderSize;
break;
default:
$ThisFileInfo['error'] .= "\n" . 'Cannot parse RIFF (this is maybe not a RIFF / WAV / AVI file?)';
unset($ThisFileInfo['fileformat']);
return false;
break;
}
$streamindex = 0;
$arraykeys = array_keys($ThisFileInfo['RIFF']);
switch ($arraykeys[0]) {
case 'WAVE':
case 'RMP3':
// RMP3 is identical to WAVE, just renamed. Used by [unknown program] when creating RIFF-MP3s
if (empty($ThisFileInfo['audio']['bitrate_mode'])) {
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
}
if (empty($ThisFileInfo['audio']['dataformat'])) {
$ThisFileInfo['audio']['dataformat'] = 'wav';
}
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['offset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['offset'] + 8;
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['data'][0]['size'];
}
if (isset($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data'])) {
$ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($ThisFileInfo['RIFF']['WAVE']['fmt '][0]['data']);
if ($ThisFileInfo['RIFF']['audio'][$streamindex] == 0) {
$ThisFileInfo['error'] .= 'Corrupt RIFF file: bitrate_audio == zero';
return false;
}
$ThisFileInfo['RIFF']['raw']['fmt '] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw'];
unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']);
$ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]);
if (substr($ThisFileInfo['audio']['codec'], 0, strlen('unknown: 0x')) == 'unknown: 0x') {
$ThisFileInfo['warning'] .= "\n" . 'Audio codec = ' . $ThisFileInfo['audio']['codec'];
}
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate'];
if ($ThisFileInfo['audio']['bits_per_sample'] == 0) {
unset($ThisFileInfo['audio']['bits_per_sample']);
}
$ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']);
if (isset($ThisFileInfo['RIFF']['WAVE']['data'][0]['offset']) && isset($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag'])) {
$ThisFileInfo['audio']['lossless'] = false;
switch ($ThisFileInfo['RIFF']['raw']['fmt ']['wFormatTag']) {
case 1:
// PCM
$ThisFileInfo['audio']['lossless'] = true;
break;
default:
// do nothing
break;
}
}
}
if (isset($ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data'])) {
require_once GETID3_INCLUDEPATH . 'getid3.rgad.php';
$rgadData = $ThisFileInfo['RIFF']['WAVE']['rgad'][0]['data'];
$ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude'] = LittleEndian2Float(substr($rgadData, 0, 4));
$ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust'] = EitherEndian2Int($ThisFileInfo, substr($rgadData, 4, 2));
$ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust'] = EitherEndian2Int($ThisFileInfo, substr($rgadData, 6, 2));
$nRadioRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nRadioRgAdjust']), 16, '0', STR_PAD_LEFT);
$nAudiophileRgAdjustBitstring = str_pad(Dec2Bin($ThisFileInfo['RIFF']['raw']['rgad']['nAudiophileRgAdjust']), 16, '0', STR_PAD_LEFT);
$ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 0, 3));
$ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 3, 3));
$ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 6, 1));
$ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'] = Bin2Dec(substr($nRadioRgAdjustBitstring, 7, 9));
$ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 0, 3));
$ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 3, 3));
$ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 6, 1));
$ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'] = Bin2Dec(substr($nAudiophileRgAdjustBitstring, 7, 9));
$ThisFileInfo['RIFF']['rgad']['peakamplitude'] = $ThisFileInfo['RIFF']['raw']['rgad']['fPeakAmplitude'];
if ($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator'] != 0) {
$ThisFileInfo['RIFF']['rgad']['radio']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['name']);
$ThisFileInfo['RIFF']['rgad']['radio']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['originator']);
$ThisFileInfo['RIFF']['rgad']['radio']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['radio']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['radio']['signbit']);
}
if ($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name'] != 0 && $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator'] != 0) {
$ThisFileInfo['RIFF']['rgad']['audiophile']['name'] = RGADnameLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['name']);
$ThisFileInfo['RIFF']['rgad']['audiophile']['originator'] = RGADoriginatorLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['originator']);
$ThisFileInfo['RIFF']['rgad']['audiophile']['adjustment'] = RGADadjustmentLookup($ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['adjustment'], $ThisFileInfo['RIFF']['raw']['rgad']['audiophile']['signbit']);
}
}
if (isset($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'])) {
$ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] = EitherEndian2Int($ThisFileInfo, substr($ThisFileInfo['RIFF']['WAVE']['fact'][0]['data'], 0, 4));
if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec'] > 0) {
$ThisFileInfo['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['raw']['fact']['NumberOfSamples'] / $ThisFileInfo['RIFF']['raw']['fmt ']['nSamplesPerSec'];
}
if (isset($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec']) {
$ThisFileInfo['audio']['bitrate'] = CastAsInt($ThisFileInfo['RIFF']['raw']['fmt ']['nAvgBytesPerSec'] * 8);
}
}
if (isset($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'])) {
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['title'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 0, 256));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['author'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 256, 32));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['reference'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 288, 32));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'] = substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 320, 10);
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'] = substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 330, 8);
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['time_reference'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 338, 8));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['bwf_version'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 346, 1));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['reserved'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 347, 254));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['coding_history'] = explode("\r\n", trim(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['data'], 601)));
$ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date_unix'] = mktime(substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 0, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 3, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_time'], 6, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 5, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 8, 2), substr($ThisFileInfo['RIFF']['WAVE']['bext'][0]['origin_date'], 0, 4));
$ThisFileInfo['RIFF']['comments']['author'][] = $ThisFileInfo['RIFF']['WAVE']['bext'][0]['author'];
$ThisFileInfo['RIFF']['comments']['title'][] = $ThisFileInfo['RIFF']['WAVE']['bext'][0]['title'];
}
if (isset($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'])) {
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 0, 2));
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['homogenous'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x1);
if ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['homogenous']) {
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['padding'] = InverseBoolean($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x2);
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['22_or_44'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x4);
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['free_format'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['sound_information'] & 0x8);
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['nominal_frame_size'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 2, 2));
}
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['anciliary_data_length'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 6, 2));
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['data'], 8, 2));
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_left'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x1);
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_free'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x2);
$ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['flags']['anciliary_data_right'] = (bool) ($ThisFileInfo['RIFF']['WAVE']['MEXT'][0]['raw']['anciliary_data_def'] & 0x4);
}
if (isset($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'])) {
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['version'] = substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 0, 4);
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['title'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 4, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['artist'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 68, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['cut_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 132, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['client_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 196, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['category'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 260, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['classification'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 324, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['out_cue'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 388, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['start_date'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 452, 10));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['start_time'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 462, 8));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['end_date'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 470, 10));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['end_time'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 480, 8));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['producer_app_id'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 488, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['producer_app_version'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 552, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['user_defined_text'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 616, 64));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['zero_db_reference'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 680, 4), true);
for ($i = 0; $i < 8; $i++) {
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['post_time'][$i]['usage_fourcc'] = substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 684 + $i * 8, 4);
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['post_time'][$i]['timer_value'] = LittleEndian2Int(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 684 + $i * 8 + 4, 4));
}
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['url'] = trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 748, 1024));
$ThisFileInfo['RIFF']['WAVE']['cart'][0]['tag_text'] = explode("\r\n", trim(substr($ThisFileInfo['RIFF']['WAVE']['cart'][0]['data'], 1772)));
$ThisFileInfo['RIFF']['comments']['artist'][] = $ThisFileInfo['RIFF']['WAVE']['cart'][0]['artist'];
$ThisFileInfo['RIFF']['comments']['title'][] = $ThisFileInfo['RIFF']['WAVE']['cart'][0]['title'];
}
if (!isset($ThisFileInfo['audio']['bitrate']) && isset($ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate'])) {
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['RIFF']['audio'][$streamindex]['bitrate'];
$ThisFileInfo['playtime_seconds'] = (double) (($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['audio']['bitrate']);
}
if (!empty($ThisFileInfo['wavpack'])) {
$ThisFileInfo['audio']['dataformat'] = 'wavpack';
$ThisFileInfo['audio']['bitrate_mode'] = 'vbr';
$ThisFileInfo['audio']['encoder'] = 'WavPack v' . $ThisFileInfo['wavpack']['version'];
// Reset to the way it was - RIFF parsing will have messed this up
$ThisFileInfo['avdataend'] = $Original['avdataend'];
$ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) * 8 / $ThisFileInfo['playtime_seconds'];
fseek($fd, $ThisFileInfo['avdataoffset'] - 44, SEEK_SET);
$RIFFdata = fread($fd, 44);
$OrignalRIFFheaderSize = LittleEndian2Int(substr($RIFFdata, 4, 4)) + 8;
$OrignalRIFFdataSize = LittleEndian2Int(substr($RIFFdata, 40, 4)) + 44;
if ($OrignalRIFFheaderSize > $OrignalRIFFdataSize) {
$ThisFileInfo['avdataend'] -= $OrignalRIFFheaderSize - $OrignalRIFFdataSize;
fseek($fd, $ThisFileInfo['avdataend'], SEEK_SET);
$RIFFdata .= fread($fd, $OrignalRIFFheaderSize - $OrignalRIFFdataSize);
}
// move the data chunk after all other chunks (if any)
// so that the RIFF parser doesn't see EOF when trying
// to skip over the data chunk
$RIFFdata = substr($RIFFdata, 0, 36) . substr($RIFFdata, 44) . substr($RIFFdata, 36, 8);
ParseRIFFdata($RIFFdata, $ThisFileInfo);
}
break;
case 'AVI ':
$ThisFileInfo['video']['bitrate_mode'] = 'cbr';
$ThisFileInfo['video']['dataformat'] = 'avi';
$ThisFileInfo['mime_type'] = 'video/avi';
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['offset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['offset'] + 8;
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['movi']['size'];
}
if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data'])) {
$avihData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['avih'][$streamindex]['data'];
$ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 0, 4));
// frame display rate (or 0L)
if ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] == 0) {
$ThisFileInfo['error'] .= 'Corrupt RIFF file: avih.dwMicroSecPerFrame == zero';
return false;
}
$ThisFileInfo['RIFF']['raw']['avih']['dwMaxBytesPerSec'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 4, 4));
// max. transfer rate
$ThisFileInfo['RIFF']['raw']['avih']['dwPaddingGranularity'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 8, 4));
// pad to multiples of this size; normally 2K.
$ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 12, 4));
// the ever-present flags
$ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 16, 4));
// # frames in file
$ThisFileInfo['RIFF']['raw']['avih']['dwInitialFrames'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 20, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwStreams'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 24, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwSuggestedBufferSize'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 28, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwWidth'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 32, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwHeight'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 36, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwScale'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 40, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwRate'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 44, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwStart'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 48, 4));
$ThisFileInfo['RIFF']['raw']['avih']['dwLength'] = EitherEndian2Int($ThisFileInfo, substr($avihData, 52, 4));
$ThisFileInfo['RIFF']['raw']['avih']['flags']['hasindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10);
$ThisFileInfo['RIFF']['raw']['avih']['flags']['mustuseindex'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20);
$ThisFileInfo['RIFF']['raw']['avih']['flags']['interleaved'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x100);
$ThisFileInfo['RIFF']['raw']['avih']['flags']['trustcktype'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x800);
$ThisFileInfo['RIFF']['raw']['avih']['flags']['capturedfile'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x10000);
$ThisFileInfo['RIFF']['raw']['avih']['flags']['copyrighted'] = (bool) ($ThisFileInfo['RIFF']['raw']['avih']['dwFlags'] & 0x20010);
if ($ThisFileInfo['RIFF']['raw']['avih']['dwWidth'] > 0) {
$ThisFileInfo['RIFF']['video'][$streamindex]['frame_width'] = $ThisFileInfo['RIFF']['raw']['avih']['dwWidth'];
$ThisFileInfo['video']['resolution_x'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_width'];
}
if ($ThisFileInfo['RIFF']['raw']['avih']['dwHeight'] > 0) {
$ThisFileInfo['RIFF']['video'][$streamindex]['frame_height'] = $ThisFileInfo['RIFF']['raw']['avih']['dwHeight'];
$ThisFileInfo['video']['resolution_y'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_height'];
}
$ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate'] = round(1000000 / $ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'], 3);
$ThisFileInfo['video']['frame_rate'] = $ThisFileInfo['RIFF']['video'][$streamindex]['frame_rate'];
}
if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][0]['data'])) {
if (is_array($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'])) {
for ($i = 0; $i < count($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh']); $i++) {
if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data'])) {
$strhData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strh'][$i]['data'];
$strhfccType = substr($strhData, 0, 4);
if (isset($ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data'])) {
$strfData = $ThisFileInfo['RIFF']['AVI ']['hdrl']['strl']['strf'][$i]['data'];
switch ($strhfccType) {
case 'auds':
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['audio']['dataformat'] = 'wav';
if (isset($ThisFileInfo['RIFF']['audio']) && is_array($ThisFileInfo['RIFF']['audio'])) {
$streamindex = count($ThisFileInfo['RIFF']['audio']);
}
$ThisFileInfo['RIFF']['audio'][$streamindex] = RIFFparseWAVEFORMATex($strfData);
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex] = $ThisFileInfo['RIFF']['audio'][$streamindex]['raw'];
unset($ThisFileInfo['RIFF']['audio'][$streamindex]['raw']);
$ThisFileInfo['audio'] = array_merge_noclobber($ThisFileInfo['audio'], $ThisFileInfo['RIFF']['audio'][$streamindex]);
$ThisFileInfo['audio']['lossless'] = false;
switch ($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['wFormatTag']) {
case 1:
// PCM
$ThisFileInfo['audio']['lossless'] = true;
break;
case 85:
// MPEG Layer 3
$ThisFileInfo['audio']['dataformat'] = 'mp3';
break;
case 8192:
// AC-3
$ThisFileInfo['audio']['dataformat'] = 'ac3';
break;
default:
$ThisFileInfo['audio']['dataformat'] = 'wav';
break;
}
break;
case 'iavs':
case 'vids':
$ThisFileInfo['RIFF']['raw']['strh'][$i]['fccType'] = substr($strhData, 0, 4);
// same as $strhfccType;
$ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler'] = substr($strhData, 4, 4);
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwFlags'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 8, 4));
// Contains AVITF_* flags
$ThisFileInfo['RIFF']['raw']['strh'][$i]['wPriority'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 12, 2));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['wLanguage'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 14, 2));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwInitialFrames'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 16, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwScale'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 20, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwRate'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 24, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwStart'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 28, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwLength'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 32, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSuggestedBufferSize'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 36, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwQuality'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 40, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['dwSampleSize'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 44, 4));
$ThisFileInfo['RIFF']['raw']['strh'][$i]['rcFrame'] = EitherEndian2Int($ThisFileInfo, substr($strhData, 48, 4));
$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler']);
if (!$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] && isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) {
$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']);
}
$ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec'];
switch ($ThisFileInfo['RIFF']['raw']['strh'][$i]['fccHandler']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$ThisFileInfo['video']['lossless'] = true;
break;
default:
$ThisFileInfo['video']['lossless'] = false;
break;
}
switch ($strhfccType) {
case 'vids':
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSize'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 0, 4));
// number of bytes required by the BITMAPINFOHEADER structure
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biWidth'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 4, 4));
// width of the bitmap in pixels
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biHeight'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 8, 4));
// height of the bitmap in pixels. If biHeight is positive, the bitmap is a 'bottom-up' DIB and its origin is the lower left corner. If biHeight is negative, the bitmap is a 'top-down' DIB and its origin is the upper left corner
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biPlanes'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 12, 2));
// number of color planes on the target device. In most cases this value must be set to 1
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biBitCount'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 14, 2));
// Specifies the number of bits per pixels
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'] = substr($strfData, 16, 4);
//
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biSizeImage'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 20, 4));
// size of the bitmap data section of the image (the actual pixel data, excluding BITMAPINFOHEADER and RGBQUAD structures)
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biXPelsPerMeter'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 24, 4));
// horizontal resolution, in pixels per metre, of the target device
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biYPelsPerMeter'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 28, 4));
// vertical resolution, in pixels per metre, of the target device
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrUsed'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 32, 4));
// actual number of color indices in the color table used by the bitmap. If this value is zero, the bitmap uses the maximum number of colors corresponding to the value of the biBitCount member for the compression mode specified by biCompression
$ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biClrImportant'] = EitherEndian2Int($ThisFileInfo, substr($strfData, 36, 4));
// number of color indices that are considered important for displaying the bitmap. If this value is zero, all colors are important
$ThisFileInfo['video']['bits_per_sample'] = $ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['biBitCount'];
if ($ThisFileInfo['RIFF']['video'][$streamindex]['codec'] == 'DV') {
$ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 2;
}
break;
case 'iavs':
$ThisFileInfo['RIFF']['video'][$streamindex]['dv_type'] = 1;
break;
}
break;
default:
$ThisFileInfo['warning'] .= "\n" . 'Unhandled fccType for stream (' . $i . '): "' . $strhfccType . '"';
break;
}
}
}
if (isset($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) && RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc'])) {
$ThisFileInfo['RIFF']['video'][$streamindex]['codec'] = RIFFfourccLookup($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']);
$ThisFileInfo['video']['codec'] = $ThisFileInfo['RIFF']['video'][$streamindex]['codec'];
switch ($ThisFileInfo['RIFF']['raw']['strf']["{$strhfccType}"][$streamindex]['fourcc']) {
case 'HFYU':
// Huffman Lossless Codec
// Huffman Lossless Codec
case 'IRAW':
// Intel YUV Uncompressed
// Intel YUV Uncompressed
case 'YUY2':
// Uncompressed YUV 4:2:2
$ThisFileInfo['video']['lossless'] = true;
$ThisFileInfo['video']['bits_per_sample'] = 24;
break;
default:
$ThisFileInfo['video']['lossless'] = false;
$ThisFileInfo['video']['bits_per_sample'] = 24;
break;
}
}
}
}
}
break;
case 'CDDA':
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['audio']['dataformat'] = 'cda';
$ThisFileInfo['audio']['lossless'] = true;
unset($ThisFileInfo['mime_type']);
$ThisFileInfo['avdataoffset'] = 44;
if (isset($ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data'])) {
$fmtData = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['data'];
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown1'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 0, 2));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 2, 2));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['disc_id'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 4, 4));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 8, 4));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 12, 4));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown6'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 16, 4));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['unknown7'] = EitherEndian2Int($ThisFileInfo, substr($fmtData, 20, 4));
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['start_offset_frame'] / 75;
$ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds'] = (double) $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_frames'] / 75;
$ThisFileInfo['comments']['track'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['track_num'];
$ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['CDDA']['fmt '][0]['playtime_seconds'];
// hardcoded data for CD-audio
$ThisFileInfo['audio']['sample_rate'] = 44100;
$ThisFileInfo['audio']['channels'] = 2;
$ThisFileInfo['audio']['bits_per_sample'] = 16;
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['audio']['sample_rate'] * $ThisFileInfo['audio']['channels'] * $ThisFileInfo['audio']['bits_per_sample'];
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
}
break;
case 'AIFF':
case 'AIFC':
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['audio']['dataformat'] = 'aiff';
$ThisFileInfo['audio']['lossless'] = true;
$ThisFileInfo['mime_type'] = 'audio/x-aiff';
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['offset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['offset'] + 8;
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['size'];
if ($ThisFileInfo['avdataend'] > $ThisFileInfo['filesize']) {
if ($ThisFileInfo['avdataend'] == $ThisFileInfo['filesize'] + 1 && $ThisFileInfo['filesize'] % 2 == 1) {
// structures rounded to 2-byte boundary, but dumb encoders
// forget to pad end of file to make this actually work
} else {
$ThisFileInfo['warning'] .= "\n" . 'Probable truncated AIFF file: expecting ' . $ThisFileInfo['RIFF'][$arraykeys[0]]['SSND'][0]['size'] . ' bytes of audio data, only ' . ($ThisFileInfo['filesize'] - $ThisFileInfo['avdataoffset']) . ' bytes found';
}
$ThisFileInfo['avdataend'] = $ThisFileInfo['filesize'];
}
}
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'])) {
$ThisFileInfo['RIFF']['audio']['channels'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 0, 2), true);
$ThisFileInfo['RIFF']['audio']['total_samples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 2, 4), false);
$ThisFileInfo['RIFF']['audio']['bits_per_sample'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 6, 2), true);
$ThisFileInfo['RIFF']['audio']['sample_rate'] = (int) BigEndian2Float(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 8, 10));
if ($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['size'] > 18) {
$ThisFileInfo['RIFF']['audio']['codec_fourcc'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 18, 4);
$CodecNameSize = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 22, 1), false);
$ThisFileInfo['RIFF']['audio']['codec_name'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMM'][0]['data'], 23, $CodecNameSize);
if ($ThisFileInfo['RIFF']['audio']['codec_name'] == 'NONE') {
$ThisFileInfo['audio']['codec'] = 'Pulse Code Modulation (PCM)';
$ThisFileInfo['audio']['lossless'] = true;
} else {
$ThisFileInfo['audio']['codec'] = $ThisFileInfo['RIFF']['audio']['codec_name'];
$ThisFileInfo['audio']['lossless'] = false;
}
}
$ThisFileInfo['audio']['channels'] = $ThisFileInfo['RIFF']['audio']['channels'];
if ($ThisFileInfo['RIFF']['audio']['bits_per_sample'] > 0) {
$ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['RIFF']['audio']['bits_per_sample'];
}
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['RIFF']['audio']['sample_rate'];
if ($ThisFileInfo['audio']['sample_rate'] == 0) {
$ThisFileInfo['error'] .= "\n" . 'Corrupted AIFF file: sample_rate == zero';
return false;
}
$ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['audio']['total_samples'] / $ThisFileInfo['audio']['sample_rate'];
}
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'])) {
$offset = 0;
$CommentCount = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), false);
$offset += 2;
for ($i = 0; $i < $CommentCount; $i++) {
$ThisFileInfo['comments_raw'][$i]['timestamp'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 4), false);
$offset += 4;
$ThisFileInfo['comments_raw'][$i]['marker_id'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), true);
$offset += 2;
$CommentLength = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, 2), false);
$offset += 2;
$ThisFileInfo['comments_raw'][$i]['comment'] = substr($ThisFileInfo['RIFF'][$arraykeys[0]]['COMT'][0]['data'], $offset, $CommentLength);
$offset += $CommentLength;
$ThisFileInfo['comments_raw'][$i]['timestamp_unix'] = DateMac2Unix($ThisFileInfo['comments_raw'][$i]['timestamp']);
$ThisFileInfo['RIFF']['comments']['comment'][] = $ThisFileInfo['comments_raw'][$i]['comment'];
}
}
$CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment');
foreach ($CommentsChunkNames as $key => $value) {
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'])) {
$ThisFileInfo['RIFF']['comments'][$value][] = $ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'];
}
}
if (isset($ThisFileInfo['RIFF']['comments'])) {
CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, true, true);
}
break;
case '8SVX':
$ThisFileInfo['audio']['bitrate_mode'] = 'cbr';
$ThisFileInfo['audio']['dataformat'] = '8svx';
$ThisFileInfo['audio']['bits_per_sample'] = 8;
$ThisFileInfo['audio']['channels'] = 1;
// overridden below, if need be
$ThisFileInfo['mime_type'] = 'audio/x-aiff';
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['offset'])) {
$ThisFileInfo['avdataoffset'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['offset'] + 8;
$ThisFileInfo['avdataend'] = $ThisFileInfo['avdataoffset'] + $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['size'];
if ($ThisFileInfo['avdataend'] > $ThisFileInfo['filesize']) {
$ThisFileInfo['warning'] .= "\n" . 'Probable truncated AIFF file: expecting ' . $ThisFileInfo['RIFF'][$arraykeys[0]]['BODY'][0]['size'] . ' bytes of audio data, only ' . ($ThisFileInfo['filesize'] - $ThisFileInfo['avdataoffset']) . ' bytes found';
}
}
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['offset'])) {
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['oneShotHiSamples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 0, 4));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['repeatHiSamples'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 4, 4));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerHiCycle'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 8, 4));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerSec'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 12, 2));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['ctOctave'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 14, 1));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['sCompression'] = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 15, 1));
$ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['Volume'] = FixedPoint16_16(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['data'], 16, 4));
$ThisFileInfo['audio']['sample_rate'] = $ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['samplesPerSec'];
switch ($ThisFileInfo['RIFF'][$arraykeys[0]]['VHDR'][0]['sCompression']) {
case 0:
$ThisFileInfo['audio']['codec'] = 'Pulse Code Modulation (PCM)';
$ThisFileInfo['audio']['lossless'] = true;
$ActualBitsPerSample = 8;
break;
case 1:
$ThisFileInfo['audio']['codec'] = 'Fibonacci-delta encoding';
$ThisFileInfo['audio']['lossless'] = false;
$ActualBitsPerSample = 4;
break;
default:
$ThisFileInfo['warning'] .= "\n" . 'Unexpected sCompression value in 8SVX.VHDR chunk - expecting 0 or 1, found "' . sCompression . '"';
break;
}
}
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]]['CHAN'][0]['data'])) {
$ChannelsIndex = BigEndian2Int(substr($ThisFileInfo['RIFF'][$arraykeys[0]]['CHAN'][0]['data'], 0, 4));
switch ($ChannelsIndex) {
case 6:
// Stereo
$ThisFileInfo['audio']['channels'] = 2;
break;
case 2:
// Left channel only
// Left channel only
case 4:
// Right channel only
$ThisFileInfo['audio']['channels'] = 1;
break;
default:
$ThisFileInfo['warning'] .= "\n" . 'Unexpected value in 8SVX.CHAN chunk - expecting 2 or 4 or 6, found "' . $ChannelsIndex . '"';
break;
}
}
$CommentsChunkNames = array('NAME' => 'title', 'author' => 'artist', '(c) ' => 'copyright', 'ANNO' => 'comment');
foreach ($CommentsChunkNames as $key => $value) {
if (isset($ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'])) {
$ThisFileInfo['RIFF']['comments'][$value][] = $ThisFileInfo['RIFF'][$arraykeys[0]][$key][0]['data'];
}
}
if (isset($ThisFileInfo['RIFF']['comments'])) {
CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, true, true);
}
$ThisFileInfo['audio']['bitrate'] = $ThisFileInfo['audio']['sample_rate'] * $ActualBitsPerSample * $ThisFileInfo['audio']['channels'];
if (!empty($ThisFileInfo['audio']['bitrate'])) {
$ThisFileInfo['playtime_seconds'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / ($ThisFileInfo['audio']['bitrate'] / 8);
}
break;
default:
$ThisFileInfo['error'] .= "\n" . 'Unknown RIFF type: expecting one of (WAVE|RMP3|AVI |CDDA|AIFF|AIFC|8SVX|), found "' . $arraykeys[0] . '" instead';
unset($ThisFileInfo['fileformat']);
break;
}
if (isset($ThisFileInfo['RIFF']['WAVE']['DISP']) && is_array($ThisFileInfo['RIFF']['WAVE']['DISP'])) {
$ThisFileInfo['tags'][] = 'riff';
$ThisFileInfo['RIFF']['comments']['title'][] = trim(substr($ThisFileInfo['RIFF']['WAVE']['DISP'][count($ThisFileInfo['RIFF']['WAVE']['DISP']) - 1]['data'], 4));
}
if (isset($ThisFileInfo['RIFF']['WAVE']['INFO']) && is_array($ThisFileInfo['RIFF']['WAVE']['INFO'])) {
$ThisFileInfo['tags'][] = 'riff';
$RIFFinfoKeyLookup = array('IART' => 'artist', 'IGNR' => 'genre', 'ICMT' => 'comment', 'ICOP' => 'copyright', 'IENG' => 'engineers', 'IKEY' => 'keywords', 'IMED' => 'orignalmedium', 'INAM' => 'name', 'ISRC' => 'sourcesupplier', 'ITCH' => 'digitizer', 'ISBJ' => 'subject', 'ISRF' => 'digitizationsource', 'ISFT' => 'encoded_by');
foreach ($RIFFinfoKeyLookup as $key => $value) {
if (isset($ThisFileInfo['RIFF']['WAVE']['INFO']["{$key}"])) {
foreach ($ThisFileInfo['RIFF']['WAVE']['INFO']["{$key}"] as $commentid => $commentdata) {
if (trim($commentdata['data']) != '') {
$ThisFileInfo['RIFF']['comments']["{$value}"][] = trim($commentdata['data']);
}
}
}
}
}
if (!empty($ThisFileInfo['RIFF']['comments'])) {
CopyFormatCommentsToRootComments($ThisFileInfo['RIFF']['comments'], $ThisFileInfo, true, false, true);
}
if (empty($ThisFileInfo['audio']['encoder']) && !empty($ThisFileInfo['mpeg']['audio']['LAME']['short_version'])) {
$ThisFileInfo['audio']['encoder'] = $ThisFileInfo['mpeg']['audio']['LAME']['short_version'];
}
if (!isset($ThisFileInfo['playtime_seconds'])) {
$ThisFileInfo['playtime_seconds'] = 0;
}
if (isset($ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames']) && isset($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'])) {
$ThisFileInfo['playtime_seconds'] = $ThisFileInfo['RIFF']['raw']['avih']['dwTotalFrames'] * ($ThisFileInfo['RIFF']['raw']['avih']['dwMicroSecPerFrame'] / 1000000);
}
if ($ThisFileInfo['playtime_seconds'] > 0) {
if (isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) {
if (!isset($ThisFileInfo['bitrate'])) {
$ThisFileInfo['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8;
}
} elseif (isset($ThisFileInfo['RIFF']['audio']) && !isset($ThisFileInfo['RIFF']['video'])) {
if (!isset($ThisFileInfo['audio']['bitrate'])) {
$ThisFileInfo['audio']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8;
}
} elseif (!isset($ThisFileInfo['RIFF']['audio']) && isset($ThisFileInfo['RIFF']['video'])) {
if (!isset($ThisFileInfo['video']['bitrate'])) {
$ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8;
}
}
}
if (isset($ThisFileInfo['RIFF']['video']) && isset($ThisFileInfo['audio']['bitrate']) && $ThisFileInfo['audio']['bitrate'] > 0 && $ThisFileInfo['playtime_seconds'] > 0) {
$ThisFileInfo['audio']['bitrate'] = 0;
$ThisFileInfo['video']['bitrate'] = ($ThisFileInfo['avdataend'] - $ThisFileInfo['avdataoffset']) / $ThisFileInfo['playtime_seconds'] * 8;
foreach ($ThisFileInfo['RIFF']['audio'] as $channelnumber => $audioinfoarray) {
$ThisFileInfo['video']['bitrate'] -= $audioinfoarray['bitrate'];
$ThisFileInfo['audio']['bitrate'] += $audioinfoarray['bitrate'];
}
if ($ThisFileInfo['video']['bitrate'] <= 0) {
unset($ThisFileInfo['video']['bitrate']);
}
if ($ThisFileInfo['audio']['bitrate'] <= 0) {
unset($ThisFileInfo['audio']['bitrate']);
}
}
if (!empty($ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample']) && $ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample'] > 0) {
$ThisFileInfo['audio']['bits_per_sample'] = $ThisFileInfo['RIFF']['raw']['fmt ']['nBitsPerSample'];
}
return true;
}
