--- /dev/null
+<?php
+/////////////////////////////////////////////////////////////////
+/// getID3() by James Heinrich <info@getid3.org> //
+// available at http://getid3.sourceforge.net //
+// or http://www.getid3.org //
+// also https://github.com/JamesHeinrich/getID3 //
+/////////////////////////////////////////////////////////////////
+// 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
+{
+
+ public function Analyze() {
+ $info = &$this->getid3->info;
+
+ $info['fileformat'] = 'real';
+ $info['bitrate'] = 0;
+ $info['playtime_seconds'] = 0;
+
+ $this->fseek($info['avdataoffset']);
+ $ChunkCounter = 0;
+ while ($this->ftell() < $info['avdataend']) {
+ $ChunkData = $this->fread(8);
+ $ChunkName = substr($ChunkData, 0, 4);
+ $ChunkSize = getid3_lib::BigEndian2Int(substr($ChunkData, 4, 4));
+
+ if ($ChunkName == '.ra'."\xFD") {
+ $ChunkData .= $this->fread($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;
+ }
+ $this->error('There was a problem parsing this RealAudio file. Please submit it for analysis to info@getid3.org');
+ unset($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'] = $this->ftell() - 8;
+ $thisfile_real_chunks_currentchunk['length'] = $ChunkSize;
+ if (($thisfile_real_chunks_currentchunk['offset'] + $thisfile_real_chunks_currentchunk['length']) > $info['avdataend']) {
+ $this->warning('Chunk "'.$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 .= $this->fread($this->getid3->fread_buffer_size() - 8);
+ $this->fseek($thisfile_real_chunks_currentchunk['offset'] + $ChunkSize);
+
+ } elseif(($ChunkSize - 8) > 0) {
+
+ $ChunkData .= $this->fread($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));
+ $offset += 4;
+ break;
+
+ default:
+ //$this->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));
+
+ $thisfile_real_chunks_currentchunk_videoinfo['codec'] = getid3_riff::fourccLookup($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)
+ $this->fseek($thisfile_real_chunks_currentchunk['next_index_header']);
+ }
+ }
+ break;
+
+ default:
+ $this->warning('Unhandled RealMedia chunk "'.$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'] += $valuearray['bitrate'];
+ }
+ }
+
+ return true;
+ }
+
+
+ public function ParseOldRAheader($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;
+ }
+
+ public 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;
+ }
+
+}
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