530 lines
No EOL
32 KiB
PHP
530 lines
No EOL
32 KiB
PHP
<?php
|
|
/////////////////////////////////////////////////////////////////
|
|
/// getID3() by James Heinrich <info@getid3.org> //
|
|
// available at http://getid3.sourceforge.net //
|
|
// or http://www.getid3.org //
|
|
/////////////////////////////////////////////////////////////////
|
|
// See readme.txt for more details //
|
|
/////////////////////////////////////////////////////////////////
|
|
// //
|
|
// module.audio-video.real.php //
|
|
// module for analyzing Real Audio/Video files //
|
|
// dependencies: module.audio-video.riff.php //
|
|
// ///
|
|
/////////////////////////////////////////////////////////////////
|
|
|
|
getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.audio-video.riff.php', __FILE__, true);
|
|
|
|
class getid3_real extends getid3_handler
|
|
{
|
|
|
|
function Analyze() {
|
|
$info = &$this->getid3->info;
|
|
|
|
$info['fileformat'] = 'real';
|
|
$info['bitrate'] = 0;
|
|
$info['playtime_seconds'] = 0;
|
|
|
|
fseek($this->getid3->fp, $info['avdataoffset'], SEEK_SET);
|
|
$ChunkCounter = 0;
|
|
while (ftell($this->getid3->fp) < $info['avdataend']) {
|
|
$ChunkData = fread($this->getid3->fp, 8);
|
|
$ChunkName = substr($ChunkData, 0, 4);
|
|
$ChunkSize = getid3_lib::BigEndian2Int(substr($ChunkData, 4, 4));
|
|
|
|
if ($ChunkName == '.ra'."\xFD") {
|
|
$ChunkData .= fread($this->getid3->fp, $ChunkSize - 8);
|
|
if ($this->ParseOldRAheader(substr($ChunkData, 0, 128), $info['real']['old_ra_header'])) {
|
|
$info['audio']['dataformat'] = 'real';
|
|
$info['audio']['lossless'] = false;
|
|
$info['audio']['sample_rate'] = $info['real']['old_ra_header']['sample_rate'];
|
|
$info['audio']['bits_per_sample'] = $info['real']['old_ra_header']['bits_per_sample'];
|
|
$info['audio']['channels'] = $info['real']['old_ra_header']['channels'];
|
|
|
|
$info['playtime_seconds'] = 60 * ($info['real']['old_ra_header']['audio_bytes'] / $info['real']['old_ra_header']['bytes_per_minute']);
|
|
$info['audio']['bitrate'] = 8 * ($info['real']['old_ra_header']['audio_bytes'] / $info['playtime_seconds']);
|
|
$info['audio']['codec'] = $this->RealAudioCodecFourCClookup($info['real']['old_ra_header']['fourcc'], $info['audio']['bitrate']);
|
|
|
|
foreach ($info['real']['old_ra_header']['comments'] as $key => $valuearray) {
|
|
if (strlen(trim($valuearray[0])) > 0) {
|
|
$info['real']['comments'][$key][] = trim($valuearray[0]);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
$info['error'][] = 'There was a problem parsing this RealAudio file. Please submit it for analysis to info@getid3.org';
|
|
unset($info['bitrate']);
|
|
unset($info['playtime_seconds']);
|
|
return false;
|
|
}
|
|
|
|
// shortcut
|
|
$info['real']['chunks'][$ChunkCounter] = array();
|
|
$thisfile_real_chunks_currentchunk = &$info['real']['chunks'][$ChunkCounter];
|
|
|
|
$thisfile_real_chunks_currentchunk['name'] = $ChunkName;
|
|
$thisfile_real_chunks_currentchunk['offset'] = ftell($this->getid3->fp) - 8;
|
|
$thisfile_real_chunks_currentchunk['length'] = $ChunkSize;
|
|
if (($thisfile_real_chunks_currentchunk['offset'] + $thisfile_real_chunks_currentchunk['length']) > $info['avdataend']) {
|
|
$info['warning'][] = 'Chunk "'.$thisfile_real_chunks_currentchunk['name'].'" at offset '.$thisfile_real_chunks_currentchunk['offset'].' claims to be '.$thisfile_real_chunks_currentchunk['length'].' bytes long, which is beyond end of file';
|
|
return false;
|
|
}
|
|
|
|
if ($ChunkSize > ($this->getid3->fread_buffer_size() + 8)) {
|
|
|
|
$ChunkData .= fread($this->getid3->fp, $this->getid3->fread_buffer_size() - 8);
|
|
fseek($this->getid3->fp, $thisfile_real_chunks_currentchunk['offset'] + $ChunkSize, SEEK_SET);
|
|
|
|
} elseif(($ChunkSize - 8) > 0) {
|
|
|
|
$ChunkData .= fread($this->getid3->fp, $ChunkSize - 8);
|
|
|
|
}
|
|
$offset = 8;
|
|
|
|
switch ($ChunkName) {
|
|
|
|
case '.RMF': // RealMedia File Header
|
|
$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
switch ($thisfile_real_chunks_currentchunk['object_version']) {
|
|
|
|
case 0:
|
|
$thisfile_real_chunks_currentchunk['file_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['headers_count'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
break;
|
|
|
|
default:
|
|
//$info['warning'][] = 'Expected .RMF-object_version to be "0", actual value is "'.$thisfile_real_chunks_currentchunk['object_version'].'" (should not be a problem)';
|
|
break;
|
|
|
|
}
|
|
break;
|
|
|
|
|
|
case 'PROP': // Properties Header
|
|
$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
|
|
$thisfile_real_chunks_currentchunk['max_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['avg_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['max_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['avg_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['num_packets'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['duration'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['preroll'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['index_offset'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['data_offset'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['num_streams'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['flags_raw'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$info['playtime_seconds'] = $thisfile_real_chunks_currentchunk['duration'] / 1000;
|
|
if ($thisfile_real_chunks_currentchunk['duration'] > 0) {
|
|
$info['bitrate'] += $thisfile_real_chunks_currentchunk['avg_bit_rate'];
|
|
}
|
|
$thisfile_real_chunks_currentchunk['flags']['save_enabled'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0001);
|
|
$thisfile_real_chunks_currentchunk['flags']['perfect_play'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0002);
|
|
$thisfile_real_chunks_currentchunk['flags']['live_broadcast'] = (bool) ($thisfile_real_chunks_currentchunk['flags_raw'] & 0x0004);
|
|
}
|
|
break;
|
|
|
|
case 'MDPR': // Media Properties Header
|
|
$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
|
|
$thisfile_real_chunks_currentchunk['stream_number'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['max_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['avg_bit_rate'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['max_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['avg_packet_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['start_time'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['preroll'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['duration'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['stream_name_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 1));
|
|
$offset += 1;
|
|
$thisfile_real_chunks_currentchunk['stream_name'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['stream_name_size']);
|
|
$offset += $thisfile_real_chunks_currentchunk['stream_name_size'];
|
|
$thisfile_real_chunks_currentchunk['mime_type_size'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 1));
|
|
$offset += 1;
|
|
$thisfile_real_chunks_currentchunk['mime_type'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['mime_type_size']);
|
|
$offset += $thisfile_real_chunks_currentchunk['mime_type_size'];
|
|
$thisfile_real_chunks_currentchunk['type_specific_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['type_specific_data'] = substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['type_specific_len']);
|
|
$offset += $thisfile_real_chunks_currentchunk['type_specific_len'];
|
|
|
|
// shortcut
|
|
$thisfile_real_chunks_currentchunk_typespecificdata = &$thisfile_real_chunks_currentchunk['type_specific_data'];
|
|
|
|
switch ($thisfile_real_chunks_currentchunk['mime_type']) {
|
|
case 'video/x-pn-realvideo':
|
|
case 'video/x-pn-multirate-realvideo':
|
|
// http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
|
|
|
|
// shortcut
|
|
$thisfile_real_chunks_currentchunk['video_info'] = array();
|
|
$thisfile_real_chunks_currentchunk_videoinfo = &$thisfile_real_chunks_currentchunk['video_info'];
|
|
|
|
$thisfile_real_chunks_currentchunk_videoinfo['dwSize'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 0, 4));
|
|
$thisfile_real_chunks_currentchunk_videoinfo['fourcc1'] = substr($thisfile_real_chunks_currentchunk_typespecificdata, 4, 4);
|
|
$thisfile_real_chunks_currentchunk_videoinfo['fourcc2'] = substr($thisfile_real_chunks_currentchunk_typespecificdata, 8, 4);
|
|
$thisfile_real_chunks_currentchunk_videoinfo['width'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 12, 2));
|
|
$thisfile_real_chunks_currentchunk_videoinfo['height'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 14, 2));
|
|
$thisfile_real_chunks_currentchunk_videoinfo['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 16, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown1'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 18, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown2'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 20, 2));
|
|
$thisfile_real_chunks_currentchunk_videoinfo['frames_per_second'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 22, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown3'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 24, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown4'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 26, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown5'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 28, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown6'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 30, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown7'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 32, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown8'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 34, 2));
|
|
//$thisfile_real_chunks_currentchunk_videoinfo['unknown9'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 36, 2));
|
|
|
|
$thisfile_real_chunks_currentchunk_videoinfo['codec'] = getid3_riff::RIFFfourccLookup($thisfile_real_chunks_currentchunk_videoinfo['fourcc2']);
|
|
|
|
$info['video']['resolution_x'] = $thisfile_real_chunks_currentchunk_videoinfo['width'];
|
|
$info['video']['resolution_y'] = $thisfile_real_chunks_currentchunk_videoinfo['height'];
|
|
$info['video']['frame_rate'] = (float) $thisfile_real_chunks_currentchunk_videoinfo['frames_per_second'];
|
|
$info['video']['codec'] = $thisfile_real_chunks_currentchunk_videoinfo['codec'];
|
|
$info['video']['bits_per_sample'] = $thisfile_real_chunks_currentchunk_videoinfo['bits_per_sample'];
|
|
break;
|
|
|
|
case 'audio/x-pn-realaudio':
|
|
case 'audio/x-pn-multirate-realaudio':
|
|
$this->ParseOldRAheader($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk['parsed_audio_data']);
|
|
|
|
$info['audio']['sample_rate'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['sample_rate'];
|
|
$info['audio']['bits_per_sample'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['bits_per_sample'];
|
|
$info['audio']['channels'] = $thisfile_real_chunks_currentchunk['parsed_audio_data']['channels'];
|
|
if (!empty($info['audio']['dataformat'])) {
|
|
foreach ($info['audio'] as $key => $value) {
|
|
if ($key != 'streams') {
|
|
$info['audio']['streams'][$thisfile_real_chunks_currentchunk['stream_number']][$key] = $value;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'logical-fileinfo':
|
|
// shortcut
|
|
$thisfile_real_chunks_currentchunk['logical_fileinfo'] = array();
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo = &$thisfile_real_chunks_currentchunk['logical_fileinfo'];
|
|
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo_offset = 0;
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;
|
|
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo['unknown1'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;
|
|
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo['num_tags'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;
|
|
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo['unknown2'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
|
|
$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += 4;
|
|
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo['d'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 1));
|
|
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo['one_type'] = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 4));
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo_thislength = getid3_lib::BigEndian2Int(substr($thisfile_real_chunks_currentchunk_typespecificdata, 4 + $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, 2));
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo['one'] = substr($thisfile_real_chunks_currentchunk_typespecificdata, 6 + $thisfile_real_chunks_currentchunk_logicalfileinfo_offset, $thisfile_real_chunks_currentchunk_logicalfileinfo_thislength);
|
|
//$thisfile_real_chunks_currentchunk_logicalfileinfo_offset += (6 + $thisfile_real_chunks_currentchunk_logicalfileinfo_thislength);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
if (empty($info['playtime_seconds'])) {
|
|
$info['playtime_seconds'] = max($info['playtime_seconds'], ($thisfile_real_chunks_currentchunk['duration'] + $thisfile_real_chunks_currentchunk['start_time']) / 1000);
|
|
}
|
|
if ($thisfile_real_chunks_currentchunk['duration'] > 0) {
|
|
switch ($thisfile_real_chunks_currentchunk['mime_type']) {
|
|
case 'audio/x-pn-realaudio':
|
|
case 'audio/x-pn-multirate-realaudio':
|
|
$info['audio']['bitrate'] = (isset($info['audio']['bitrate']) ? $info['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
|
|
$info['audio']['codec'] = $this->RealAudioCodecFourCClookup($thisfile_real_chunks_currentchunk['parsed_audio_data']['fourcc'], $info['audio']['bitrate']);
|
|
$info['audio']['dataformat'] = 'real';
|
|
$info['audio']['lossless'] = false;
|
|
break;
|
|
|
|
case 'video/x-pn-realvideo':
|
|
case 'video/x-pn-multirate-realvideo':
|
|
$info['video']['bitrate'] = (isset($info['video']['bitrate']) ? $info['video']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
|
|
$info['video']['bitrate_mode'] = 'cbr';
|
|
$info['video']['dataformat'] = 'real';
|
|
$info['video']['lossless'] = false;
|
|
$info['video']['pixel_aspect_ratio'] = (float) 1;
|
|
break;
|
|
|
|
case 'audio/x-ralf-mpeg4-generic':
|
|
$info['audio']['bitrate'] = (isset($info['audio']['bitrate']) ? $info['audio']['bitrate'] : 0) + $thisfile_real_chunks_currentchunk['avg_bit_rate'];
|
|
$info['audio']['codec'] = 'RealAudio Lossless';
|
|
$info['audio']['dataformat'] = 'real';
|
|
$info['audio']['lossless'] = true;
|
|
break;
|
|
}
|
|
$info['bitrate'] = (isset($info['video']['bitrate']) ? $info['video']['bitrate'] : 0) + (isset($info['audio']['bitrate']) ? $info['audio']['bitrate'] : 0);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case 'CONT': // Content Description Header (text comments)
|
|
$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
|
|
$thisfile_real_chunks_currentchunk['title_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['title'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['title_len']);
|
|
$offset += $thisfile_real_chunks_currentchunk['title_len'];
|
|
|
|
$thisfile_real_chunks_currentchunk['artist_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['artist'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['artist_len']);
|
|
$offset += $thisfile_real_chunks_currentchunk['artist_len'];
|
|
|
|
$thisfile_real_chunks_currentchunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['copyright'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['copyright_len']);
|
|
$offset += $thisfile_real_chunks_currentchunk['copyright_len'];
|
|
|
|
$thisfile_real_chunks_currentchunk['comment_len'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['comment'] = (string) substr($ChunkData, $offset, $thisfile_real_chunks_currentchunk['comment_len']);
|
|
$offset += $thisfile_real_chunks_currentchunk['comment_len'];
|
|
|
|
|
|
$commentkeystocopy = array('title'=>'title', 'artist'=>'artist', 'copyright'=>'copyright', 'comment'=>'comment');
|
|
foreach ($commentkeystocopy as $key => $val) {
|
|
if ($thisfile_real_chunks_currentchunk[$key]) {
|
|
$info['real']['comments'][$val][] = trim($thisfile_real_chunks_currentchunk[$key]);
|
|
}
|
|
}
|
|
|
|
}
|
|
break;
|
|
|
|
|
|
case 'DATA': // Data Chunk Header
|
|
// do nothing
|
|
break;
|
|
|
|
case 'INDX': // Index Section Header
|
|
$thisfile_real_chunks_currentchunk['object_version'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
if ($thisfile_real_chunks_currentchunk['object_version'] == 0) {
|
|
$thisfile_real_chunks_currentchunk['num_indices'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
$thisfile_real_chunks_currentchunk['stream_number'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 2));
|
|
$offset += 2;
|
|
$thisfile_real_chunks_currentchunk['next_index_header'] = getid3_lib::BigEndian2Int(substr($ChunkData, $offset, 4));
|
|
$offset += 4;
|
|
|
|
if ($thisfile_real_chunks_currentchunk['next_index_header'] == 0) {
|
|
// last index chunk found, ignore rest of file
|
|
break 2;
|
|
} else {
|
|
// non-last index chunk, seek to next index chunk (skipping actual index data)
|
|
fseek($this->getid3->fp, $thisfile_real_chunks_currentchunk['next_index_header'], SEEK_SET);
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
$info['warning'][] = 'Unhandled RealMedia chunk "'.$ChunkName.'" at offset '.$thisfile_real_chunks_currentchunk['offset'];
|
|
break;
|
|
}
|
|
$ChunkCounter++;
|
|
}
|
|
|
|
if (!empty($info['audio']['streams'])) {
|
|
$info['audio']['bitrate'] = 0;
|
|
foreach ($info['audio']['streams'] as $key => $valuearray) {
|
|
$info['audio']['bitrate'] += $valuearray['bitrate'];
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
function ParseOldRAheader($OldRAheaderData, &$ParsedArray) {
|
|
// http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
|
|
|
|
$ParsedArray = array();
|
|
$ParsedArray['magic'] = substr($OldRAheaderData, 0, 4);
|
|
if ($ParsedArray['magic'] != '.ra'."\xFD") {
|
|
return false;
|
|
}
|
|
$ParsedArray['version1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 4, 2));
|
|
|
|
if ($ParsedArray['version1'] < 3) {
|
|
|
|
return false;
|
|
|
|
} elseif ($ParsedArray['version1'] == 3) {
|
|
|
|
$ParsedArray['fourcc1'] = '.ra3';
|
|
$ParsedArray['bits_per_sample'] = 16; // hard-coded for old versions?
|
|
$ParsedArray['sample_rate'] = 8000; // hard-coded for old versions?
|
|
|
|
$ParsedArray['header_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 6, 2));
|
|
$ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 8, 2)); // always 1 (?)
|
|
//$ParsedArray['unknown1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 10, 2));
|
|
//$ParsedArray['unknown2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 12, 2));
|
|
//$ParsedArray['unknown3'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 14, 2));
|
|
$ParsedArray['bytes_per_minute'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 16, 2));
|
|
$ParsedArray['audio_bytes'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 18, 4));
|
|
$ParsedArray['comments_raw'] = substr($OldRAheaderData, 22, $ParsedArray['header_size'] - 22 + 1); // not including null terminator
|
|
|
|
$commentoffset = 0;
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['title'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['artist'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['copyright'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
|
|
$commentoffset++; // final null terminator (?)
|
|
$commentoffset++; // fourcc length (?) should be 4
|
|
$ParsedArray['fourcc'] = substr($OldRAheaderData, 23 + $commentoffset, 4);
|
|
|
|
} elseif ($ParsedArray['version1'] <= 5) {
|
|
|
|
//$ParsedArray['unknown1'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 6, 2));
|
|
$ParsedArray['fourcc1'] = substr($OldRAheaderData, 8, 4);
|
|
$ParsedArray['file_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 12, 4));
|
|
$ParsedArray['version2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 16, 2));
|
|
$ParsedArray['header_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 18, 4));
|
|
$ParsedArray['codec_flavor_id'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 22, 2));
|
|
$ParsedArray['coded_frame_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 24, 4));
|
|
$ParsedArray['audio_bytes'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 28, 4));
|
|
$ParsedArray['bytes_per_minute'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 32, 4));
|
|
//$ParsedArray['unknown5'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 36, 4));
|
|
$ParsedArray['sub_packet_h'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 40, 2));
|
|
$ParsedArray['frame_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 42, 2));
|
|
$ParsedArray['sub_packet_size'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 44, 2));
|
|
//$ParsedArray['unknown6'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 46, 2));
|
|
|
|
switch ($ParsedArray['version1']) {
|
|
|
|
case 4:
|
|
$ParsedArray['sample_rate'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 48, 2));
|
|
//$ParsedArray['unknown8'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 50, 2));
|
|
$ParsedArray['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 52, 2));
|
|
$ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 54, 2));
|
|
$ParsedArray['length_fourcc2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 56, 1));
|
|
$ParsedArray['fourcc2'] = substr($OldRAheaderData, 57, 4);
|
|
$ParsedArray['length_fourcc3'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 61, 1));
|
|
$ParsedArray['fourcc3'] = substr($OldRAheaderData, 62, 4);
|
|
//$ParsedArray['unknown9'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 66, 1));
|
|
//$ParsedArray['unknown10'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 67, 2));
|
|
$ParsedArray['comments_raw'] = substr($OldRAheaderData, 69, $ParsedArray['header_size'] - 69 + 16);
|
|
|
|
$commentoffset = 0;
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['title'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['artist'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
|
|
$commentlength = getid3_lib::BigEndian2Int(substr($ParsedArray['comments_raw'], $commentoffset++, 1));
|
|
$ParsedArray['comments']['copyright'][] = substr($ParsedArray['comments_raw'], $commentoffset, $commentlength);
|
|
$commentoffset += $commentlength;
|
|
break;
|
|
|
|
case 5:
|
|
$ParsedArray['sample_rate'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 48, 4));
|
|
$ParsedArray['sample_rate2'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 52, 4));
|
|
$ParsedArray['bits_per_sample'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 56, 4));
|
|
$ParsedArray['channels'] = getid3_lib::BigEndian2Int(substr($OldRAheaderData, 60, 2));
|
|
$ParsedArray['genr'] = substr($OldRAheaderData, 62, 4);
|
|
$ParsedArray['fourcc3'] = substr($OldRAheaderData, 66, 4);
|
|
$ParsedArray['comments'] = array();
|
|
break;
|
|
}
|
|
$ParsedArray['fourcc'] = $ParsedArray['fourcc3'];
|
|
|
|
}
|
|
foreach ($ParsedArray['comments'] as $key => $value) {
|
|
if ($ParsedArray['comments'][$key][0] === false) {
|
|
$ParsedArray['comments'][$key][0] = '';
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
function RealAudioCodecFourCClookup($fourcc, $bitrate) {
|
|
static $RealAudioCodecFourCClookup = array();
|
|
if (empty($RealAudioCodecFourCClookup)) {
|
|
// http://www.its.msstate.edu/net/real/reports/config/tags.stats
|
|
// http://www.freelists.org/archives/matroska-devel/06-2003/fullthread18.html
|
|
|
|
$RealAudioCodecFourCClookup['14_4'][8000] = 'RealAudio v2 (14.4kbps)';
|
|
$RealAudioCodecFourCClookup['14.4'][8000] = 'RealAudio v2 (14.4kbps)';
|
|
$RealAudioCodecFourCClookup['lpcJ'][8000] = 'RealAudio v2 (14.4kbps)';
|
|
$RealAudioCodecFourCClookup['28_8'][15200] = 'RealAudio v2 (28.8kbps)';
|
|
$RealAudioCodecFourCClookup['28.8'][15200] = 'RealAudio v2 (28.8kbps)';
|
|
$RealAudioCodecFourCClookup['sipr'][4933] = 'RealAudio v4 (5kbps Voice)';
|
|
$RealAudioCodecFourCClookup['sipr'][6444] = 'RealAudio v4 (6.5kbps Voice)';
|
|
$RealAudioCodecFourCClookup['sipr'][8444] = 'RealAudio v4 (8.5kbps Voice)';
|
|
$RealAudioCodecFourCClookup['sipr'][16000] = 'RealAudio v4 (16kbps Wideband)';
|
|
$RealAudioCodecFourCClookup['dnet'][8000] = 'RealAudio v3 (8kbps Music)';
|
|
$RealAudioCodecFourCClookup['dnet'][16000] = 'RealAudio v3 (16kbps Music Low Response)';
|
|
$RealAudioCodecFourCClookup['dnet'][15963] = 'RealAudio v3 (16kbps Music Mid/High Response)';
|
|
$RealAudioCodecFourCClookup['dnet'][20000] = 'RealAudio v3 (20kbps Music Stereo)';
|
|
$RealAudioCodecFourCClookup['dnet'][32000] = 'RealAudio v3 (32kbps Music Mono)';
|
|
$RealAudioCodecFourCClookup['dnet'][31951] = 'RealAudio v3 (32kbps Music Stereo)';
|
|
$RealAudioCodecFourCClookup['dnet'][39965] = 'RealAudio v3 (40kbps Music Mono)';
|
|
$RealAudioCodecFourCClookup['dnet'][40000] = 'RealAudio v3 (40kbps Music Stereo)';
|
|
$RealAudioCodecFourCClookup['dnet'][79947] = 'RealAudio v3 (80kbps Music Mono)';
|
|
$RealAudioCodecFourCClookup['dnet'][80000] = 'RealAudio v3 (80kbps Music Stereo)';
|
|
|
|
$RealAudioCodecFourCClookup['dnet'][0] = 'RealAudio v3';
|
|
$RealAudioCodecFourCClookup['sipr'][0] = 'RealAudio v4';
|
|
$RealAudioCodecFourCClookup['cook'][0] = 'RealAudio G2';
|
|
$RealAudioCodecFourCClookup['atrc'][0] = 'RealAudio 8';
|
|
}
|
|
$roundbitrate = intval(round($bitrate));
|
|
if (isset($RealAudioCodecFourCClookup[$fourcc][$roundbitrate])) {
|
|
return $RealAudioCodecFourCClookup[$fourcc][$roundbitrate];
|
|
} elseif (isset($RealAudioCodecFourCClookup[$fourcc][0])) {
|
|
return $RealAudioCodecFourCClookup[$fourcc][0];
|
|
}
|
|
return $fourcc;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
?>
|