it technically logs in and streams.. but thats it, complete rewrite almost everything broken

1 files changed, 591 insertions, 0 deletions

diff --git a/modules/getid3/module.audio-video.real.php b/modules/getid3/module.audio-video.real.php
new file mode 100644
index 00000000..fd28c18b
--- /dev/null
+++ b/modules/getid3/module.audio-video.real.php
@@ -0,0 +1,591 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP version 5                                                        |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 2002-2006 James Heinrich, Allan Hansen                 |
+// +----------------------------------------------------------------------+
+// | This source file is subject to version 2 of the GPL license,         |
+// | that is bundled with this package in the file license.txt and is     |
+// | available through the world-wide-web at the following url:           |
+// | http://www.gnu.org/copyleft/gpl.html                                 |
+// +----------------------------------------------------------------------+
+// | getID3() - http://getid3.sourceforge.net or http://www.getid3.org    |
+// +----------------------------------------------------------------------+
+// | Authors: James Heinrich <infoØgetid3*org>                            |
+// |          Allan Hansen <ahØartemis*dk>                                |
+// +----------------------------------------------------------------------+
+// | module.audio-video.real.php                                          |
+// | Module for analyzing Real Audio/Video files                          |
+// | dependencies: module.audio-video.riff.php                            |
+// +----------------------------------------------------------------------+
+//
+// $Id: module.audio-video.real.php,v 1.4 2006/11/02 10:48:00 ah Exp $
+
+        
+        
+class getid3_real extends getid3_handler
+{
+
+    public function Analyze() {
+        
+        $getid3 = $this->getid3;
+        
+        $getid3->include_module('audio-video.riff');
+
+        $getid3->info['fileformat']       = 'real';
+        $getid3->info['bitrate']          = 0;
+        $getid3->info['playtime_seconds'] = 0;
+
+        fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET);
+        $chunk_counter = 0;
+
+        while (ftell($getid3->fp) < $getid3->info['avdataend']) {
+            
+            $chunk_data = fread($getid3->fp, 8);
+            $chunk_name =                           substr($chunk_data, 0, 4);
+            $chunk_size = getid3_lib::BigEndian2Int(substr($chunk_data, 4, 4));
+
+            if ($chunk_name == '.ra'."\xFD") {
+                $chunk_data .= fread($getid3->fp, $chunk_size - 8);
+                
+                if ($this->ParseOldRAheader(substr($chunk_data, 0, 128), $getid3->info['real']['old_ra_header'])) {
+                
+                    $getid3->info['audio']['dataformat']      = 'real';
+                    $getid3->info['audio']['lossless']        = false;
+                    $getid3->info['audio']['sample_rate']     = $getid3->info['real']['old_ra_header']['sample_rate'];
+                    $getid3->info['audio']['bits_per_sample'] = $getid3->info['real']['old_ra_header']['bits_per_sample'];
+                    $getid3->info['audio']['channels']        = $getid3->info['real']['old_ra_header']['channels'];
+
+                    $getid3->info['playtime_seconds']         = 60 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['real']['old_ra_header']['bytes_per_minute']);
+                    $getid3->info['audio']['bitrate']         =  8 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['playtime_seconds']);
+                    $getid3->info['audio']['codec']           = $this->RealAudioCodecFourCClookup($getid3->info['real']['old_ra_header']['fourcc'], $getid3->info['audio']['bitrate']);
+
+                    foreach ($getid3->info['real']['old_ra_header']['comments'] as $key => $value_array) {
+                
+                        if (strlen(trim($value_array[0])) > 0) {
+                            $getid3->info['real']['comments'][$key][] = trim($value_array[0]);
+                        }
+                    }
+                    return true;
+                }
+                
+                throw new getid3_exception('There was a problem parsing this RealAudio file. Please submit it for analysis to http://www.getid3.org/upload/ or info@getid3.org');
+            }
+
+            $getid3->info['real']['chunks'][$chunk_counter] = array ();
+            $info_real_chunks_current_chunk = &$getid3->info['real']['chunks'][$chunk_counter];
+
+            $info_real_chunks_current_chunk['name']   = $chunk_name;
+            $info_real_chunks_current_chunk['offset'] = ftell($getid3->fp) - 8;
+            $info_real_chunks_current_chunk['length'] = $chunk_size;
+            
+            if (($info_real_chunks_current_chunk['offset'] + $info_real_chunks_current_chunk['length']) > $getid3->info['avdataend']) {
+                $getid3->warning('Chunk "'.$info_real_chunks_current_chunk['name'].'" at offset '.$info_real_chunks_current_chunk['offset'].' claims to be '.$info_real_chunks_current_chunk['length'].' bytes long, which is beyond end of file');
+                return false;
+            }
+
+            if ($chunk_size > (getid3::FREAD_BUFFER_SIZE + 8)) {
+                $chunk_data .= fread($getid3->fp, getid3::FREAD_BUFFER_SIZE - 8);
+                fseek($getid3->fp, $info_real_chunks_current_chunk['offset'] + $chunk_size, SEEK_SET);
+
+            } elseif(($chunk_size - 8) > 0) {
+                $chunk_data .= fread($getid3->fp, $chunk_size - 8);
+            }
+            $offset = 8;
+
+            switch ($chunk_name) {
+
+                case '.RMF': // RealMedia File Header
+
+                    $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                    $offset += 2;
+
+                    switch ($info_real_chunks_current_chunk['object_version']) {
+
+                        case 0:
+                            $info_real_chunks_current_chunk['file_version']  = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4));
+                            $offset += 4;
+
+                            $info_real_chunks_current_chunk['headers_count'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4));
+                            $offset += 4;
+                            break;
+
+                        default:
+                            //$getid3->warning('Expected .RMF-object_version to be "0", actual value is "'.$info_real_chunks_current_chunk['object_version'].'" (should not be a problem)';
+                            break;
+
+                    }
+                    break;
+
+
+                case 'PROP': // Properties Header
+
+                    $info_real_chunks_current_chunk['object_version']      = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                    $offset += 2;
+
+                    if ($info_real_chunks_current_chunk['object_version'] == 0) {
+                        
+                        getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset,
+                            array (
+                                'max_bit_rate'    => 4,
+                                'avg_bit_rate'    => 4,
+                                'max_packet_size' => 4,
+                                'avg_packet_size' => 4,
+                                'num_packets'     => 4,
+                                'duration'        => 4,
+                                'preroll'         => 4,
+                                'index_offset'    => 4,
+                                'data_offset'     => 4,
+                                'num_streams'     => 2,
+                                'flags_raw'       => 2
+                            )
+                        );
+                        $offset += 40;
+
+                        $getid3->info['playtime_seconds'] = $info_real_chunks_current_chunk['duration'] / 1000;
+                        if ($info_real_chunks_current_chunk['duration'] > 0) {
+                            $getid3->info['bitrate'] += $info_real_chunks_current_chunk['avg_bit_rate'];
+                        }
+                        
+                        $info_real_chunks_current_chunk['flags']['save_enabled']   = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0001);
+                        $info_real_chunks_current_chunk['flags']['perfect_play']   = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0002);
+                        $info_real_chunks_current_chunk['flags']['live_broadcast'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0004);
+                    }
+                    break;
+
+
+                case 'MDPR': // Media Properties Header
+
+                    $info_real_chunks_current_chunk['object_version']         = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                    $offset += 2;
+
+                    if ($info_real_chunks_current_chunk['object_version'] == 0) {
+
+                        getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset,
+                            array (
+                                'stream_number'    => 2,
+                                'max_bit_rate'     => 4,
+                                'avg_bit_rate'     => 4,
+                                'max_packet_size'  => 4,
+                                'avg_packet_size'  => 4,
+                                'start_time'       => 4,
+                                'preroll'          => 4,
+                                'duration'         => 4,
+                                'stream_name_size' => 1
+                            )
+                        );
+                        $offset += 31;
+                        
+                        $info_real_chunks_current_chunk['stream_name']        = substr($chunk_data, $offset, $info_real_chunks_current_chunk['stream_name_size']);
+                        $offset += $info_real_chunks_current_chunk['stream_name_size'];
+                        
+                        $info_real_chunks_current_chunk['mime_type_size']     = getid3_lib::BigEndian2Int($chunk_data{$offset++});
+                        
+                        $info_real_chunks_current_chunk['mime_type']          = substr($chunk_data, $offset, $info_real_chunks_current_chunk['mime_type_size']);
+                        $offset += $info_real_chunks_current_chunk['mime_type_size'];
+                        
+                        $info_real_chunks_current_chunk['type_specific_len']  = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4));
+                        $offset += 4;
+                        
+                        $info_real_chunks_current_chunk['type_specific_data'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['type_specific_len']);
+                        $offset += $info_real_chunks_current_chunk['type_specific_len'];
+
+                        $info_real_chunks_current_chunk_typespecificdata = &$info_real_chunks_current_chunk['type_specific_data'];
+
+                        switch ($info_real_chunks_current_chunk['mime_type']) {
+                          
+                            case 'video/x-pn-realvideo':
+                            case 'video/x-pn-multirate-realvideo':
+                                // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
+
+                                $info_real_chunks_current_chunk['video_info'] = array ();
+                                $info_real_chunks_current_chunk_video_info    = &$info_real_chunks_current_chunk['video_info'];
+
+                                getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk_video_info, $info_real_chunks_current_chunk_typespecificdata, 0,
+                                    array (
+                                        'dwSize'            => 4,
+                                        'fourcc1'           => -4,
+                                        'fourcc2'           => -4,
+                                        'width'             => 2,
+                                        'height'            => 2,
+                                        'bits_per_sample'   => 2,
+                                        'IGNORE-unknown1'   => 2,
+                                        'IGNORE-unknown2'   => 2,
+                                        'frames_per_second' => 2,
+                                        'IGNORE-unknown3'   => 2,
+                                        'IGNORE-unknown4'   => 2,
+                                        'IGNORE-unknown5'   => 2,
+                                        'IGNORE-unknown6'   => 2,
+                                        'IGNORE-unknown7'   => 2,
+                                        'IGNORE-unknown8'   => 2,
+                                        'IGNORE-unknown9'   => 2
+                                    )
+                                );
+
+                                $info_real_chunks_current_chunk_video_info['codec'] = getid3_riff::RIFFfourccLookup($info_real_chunks_current_chunk_video_info['fourcc2']);
+
+                                $getid3->info['video']['resolution_x']    =        $info_real_chunks_current_chunk_video_info['width'];
+                                $getid3->info['video']['resolution_y']    =        $info_real_chunks_current_chunk_video_info['height'];
+                                $getid3->info['video']['frame_rate']      = (float)$info_real_chunks_current_chunk_video_info['frames_per_second'];
+                                $getid3->info['video']['codec']           =        $info_real_chunks_current_chunk_video_info['codec'];
+                                $getid3->info['video']['bits_per_sample'] =        $info_real_chunks_current_chunk_video_info['bits_per_sample'];
+                                break;
+
+
+                            case 'audio/x-pn-realaudio':
+                            case 'audio/x-pn-multirate-realaudio':
+
+                                $this->ParseOldRAheader($info_real_chunks_current_chunk_typespecificdata, $info_real_chunks_current_chunk['parsed_audio_data']);
+
+                                $getid3->info['audio']['sample_rate']     = $info_real_chunks_current_chunk['parsed_audio_data']['sample_rate'];
+                                $getid3->info['audio']['bits_per_sample'] = $info_real_chunks_current_chunk['parsed_audio_data']['bits_per_sample'];
+                                $getid3->info['audio']['channels']        = $info_real_chunks_current_chunk['parsed_audio_data']['channels'];
+
+                                if (!empty($getid3->info['audio']['dataformat'])) {
+                                    foreach ($getid3->info['audio'] as $key => $value) {
+                                        if ($key != 'streams') {
+                                            $getid3->info['audio']['streams'][$info_real_chunks_current_chunk['stream_number']][$key] = $value;
+                                        }
+                                    }
+                                }
+                                break;
+
+
+                            case 'logical-fileinfo':
+
+                                $info_real_chunks_current_chunk['logical_fileinfo']['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 0, 4));
+                                // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown1']             = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 4, 4));
+                                $info_real_chunks_current_chunk['logical_fileinfo']['num_tags']                = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 8, 4));
+                                // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown2']             = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 12, 4));
+                                break;
+
+                        }
+
+
+                        if (empty($getid3->info['playtime_seconds'])) {
+                            $getid3->info['playtime_seconds'] = max($getid3->info['playtime_seconds'], ($info_real_chunks_current_chunk['duration'] + $info_real_chunks_current_chunk['start_time']) / 1000);
+                        }
+                        
+                        if ($info_real_chunks_current_chunk['duration'] > 0) {
+                        
+                            switch ($info_real_chunks_current_chunk['mime_type']) {
+                        
+                                case 'audio/x-pn-realaudio':
+                                case 'audio/x-pn-multirate-realaudio':
+                                    
+                                    $getid3->info['audio']['bitrate']    = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate'];
+                                    $getid3->info['audio']['codec']      = $this->RealAudioCodecFourCClookup($info_real_chunks_current_chunk['parsed_audio_data']['fourcc'], $getid3->info['audio']['bitrate']);
+                                    $getid3->info['audio']['dataformat'] = 'real';
+                                    $getid3->info['audio']['lossless']   = false;
+                                    break;
+
+
+                                case 'video/x-pn-realvideo':
+                                case 'video/x-pn-multirate-realvideo':
+
+                                    $getid3->info['video']['bitrate']            = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate'];
+                                    $getid3->info['video']['bitrate_mode']       = 'cbr';
+                                    $getid3->info['video']['dataformat']         = 'real';
+                                    $getid3->info['video']['lossless']           = false;
+                                    $getid3->info['video']['pixel_aspect_ratio'] = (float)1;
+                                    break;
+
+
+                                case 'audio/x-ralf-mpeg4-generic':
+
+                                    $getid3->info['audio']['bitrate']    = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate'];
+                                    $getid3->info['audio']['codec']      = 'RealAudio Lossless';
+                                    $getid3->info['audio']['dataformat'] = 'real';
+                                    $getid3->info['audio']['lossless']   = true;
+                                    break;
+                                    
+                            }
+                            
+                            $getid3->info['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0);
+                        }
+                    }
+                    break;
+
+
+                case 'CONT': // Content Description Header (text comments)
+
+                    $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                    $offset += 2;
+
+                    if ($info_real_chunks_current_chunk['object_version'] == 0) {
+
+                        $info_real_chunks_current_chunk['title_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                        $offset += 2;
+
+                        $info_real_chunks_current_chunk['title'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['title_len']);
+                        $offset += $info_real_chunks_current_chunk['title_len'];
+
+                        $info_real_chunks_current_chunk['artist_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                        $offset += 2;
+
+                        $info_real_chunks_current_chunk['artist'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['artist_len']);
+                        $offset += $info_real_chunks_current_chunk['artist_len'];
+
+                        $info_real_chunks_current_chunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                        $offset += 2;
+
+                        $info_real_chunks_current_chunk['copyright'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['copyright_len']);
+                        $offset += $info_real_chunks_current_chunk['copyright_len'];
+
+                        $info_real_chunks_current_chunk['comment_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                        $offset += 2;
+
+                        $info_real_chunks_current_chunk['comment'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['comment_len']);
+                        $offset += $info_real_chunks_current_chunk['comment_len'];
+
+                        foreach (array ('title'=>'title', 'artist'=>'artist', 'copyright'=>'copyright', 'comment'=>'comment') as $key => $val) {
+                            if ($info_real_chunks_current_chunk[$key]) {
+                                $getid3->info['real']['comments'][$val][] = trim($info_real_chunks_current_chunk[$key]);
+                            }
+                        }
+                    }
+                    break;
+
+
+                case 'DATA': // Data Chunk Header
+
+                    // do nothing
+                    break;
+
+
+                case 'INDX': // Index Section Header
+
+                    $info_real_chunks_current_chunk['object_version']        = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2));
+                    $offset += 2;
+
+                    if ($info_real_chunks_current_chunk['object_version'] == 0) {
+
+                        getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, 
+                            array (
+                                'num_indices'       => 4,
+                                'stream_number'     => 2,
+                                'next_index_header' => 4
+                            )
+                        );
+                        $offset += 10;
+
+                        if ($info_real_chunks_current_chunk['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($getid3->fp, $info_real_chunks_current_chunk['next_index_header'], SEEK_SET);
+                        }
+                    }
+                    break;
+
+
+                default:
+                    $getid3->warning('Unhandled RealMedia chunk "'.$chunk_name.'" at offset '.$info_real_chunks_current_chunk['offset']);
+                    break;
+            }
+            $chunk_counter++;
+        }
+
+        if (!empty($getid3->info['audio']['streams'])) {
+            
+            $getid3->info['audio']['bitrate'] = 0;
+            
+            foreach ($getid3->info['audio']['streams'] as $key => $value_array) {
+                $getid3->info['audio']['bitrate'] += $value_array['bitrate'];
+            }
+        }
+
+        return true;
+    }
+
+
+
+    public static function ParseOldRAheader($old_ra_header_data, &$parsed_array) {
+
+        // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html
+
+        $parsed_array = array ();
+        $parsed_array['magic'] = substr($old_ra_header_data, 0, 4);
+        
+        if ($parsed_array['magic'] != '.ra'."\xFD") {
+            return false;
+        }
+        
+        $parsed_array['version1'] = getid3_lib::BigEndian2Int(substr($old_ra_header_data,  4, 2));
+
+        if ($parsed_array['version1'] < 3) {
+
+            return false;
+        } 
+
+        if ($parsed_array['version1'] == 3) {
+
+            $parsed_array['fourcc1']          = '.ra3';
+            $parsed_array['bits_per_sample']  = 16;   // hard-coded for old versions?
+            $parsed_array['sample_rate']      = 8000; // hard-coded for old versions?
+
+            getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 6,
+                array (
+                    'header_size'      => 2,
+                    'channels'         => 2, // always 1 (?)
+                    'IGNORE-unknown1'  => 2,
+                    'IGNORE-unknown2'  => 2,
+                    'IGNORE-unknown3'  => 2,
+                    'bytes_per_minute' => 2,
+                    'audio_bytes'      => 4,
+                )
+            );
+            
+            $parsed_array['comments_raw'] = substr($old_ra_header_data, 22, $parsed_array['header_size'] - 22 + 1); // not including null terminator
+
+            $comment_offset = 0;
+            
+            foreach (array ('title', 'artist', 'copyright') as $name) {
+                $comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++});
+                $parsed_array['comments'][$name][]= substr($parsed_array['comments_raw'], $comment_offset, $comment_length);
+                $comment_offset += $comment_length;
+            }
+    
+            $comment_offset++; // final null terminator (?)
+            $comment_offset++; // fourcc length (?) should be 4
+            
+            $parsed_array['fourcc'] = substr($old_ra_header_data, 23 + $comment_offset, 4);
+
+
+        } elseif ($parsed_array['version1'] <= 5) {
+
+            getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 6,
+                array (
+                    'IGNORE-unknown1'  => 2,
+                    'fourcc1'          => -4,
+                    'file_size'        => 4,
+                    'version2'         => 2,
+                    'header_size'      => 4,
+                    'codec_flavor_id'  => 2,
+                    'coded_frame_size' => 4,
+                    'audio_bytes'      => 4,
+                    'bytes_per_minute' => 4,
+                    'IGNORE-unknown5'  => 4,
+                    'sub_packet_h'     => 2,
+                    'frame_size'       => 2,
+                    'sub_packet_size'  => 2,
+                    'IGNORE-unknown6'  => 2
+                )
+            );
+
+            switch ($parsed_array['version1']) {
+
+                case 4:
+             
+                    getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 48,
+                        array (
+                            'sample_rate'      => 2,
+                            'IGNORE-unknown8'  => 2,
+                            'bits_per_sample'  => 2,
+                            'channels'         => 2,
+                            'length_fourcc2'   => 1,
+                            'fourcc2'          => -4,
+                            'length_fourcc3'   => 1,
+                            'fourcc3'          => -4,
+                            'IGNORE-unknown9'  => 1,
+                            'IGNORE-unknown10' => 2,
+                        )
+                    );
+
+                    $parsed_array['comments_raw'] = substr($old_ra_header_data, 69, $parsed_array['header_size'] - 69 + 16);
+
+                    $comment_offset = 0;
+                    
+                    foreach (array ('title', 'artist', 'copyright') as $name) {
+                        $comment_length = getid3_lib::BigEndian2Int($parsed_array['comments_raw']{$comment_offset++});
+                        $parsed_array['comments'][$name][]= substr($parsed_array['comments_raw'], $comment_offset, $comment_length);
+                        $comment_offset += $comment_length;
+                    }
+                    break;
+
+
+                case 5:
+                
+                getid3_lib::ReadSequence('BigEndian2Int', $parsed_array, $old_ra_header_data, 48,
+                        array (
+                            'sample_rate'      => 4,
+                            'sample_rate2'     => 4,
+                            'bits_per_sample'  => 4,
+                            'channels'         => 2,
+                            'genr'             => -4,
+                            'fourcc3'          => -4,
+                        )
+                    );
+                    $parsed_array['comments'] = array ();
+                    break;
+                    
+            }
+            
+            $parsed_array['fourcc'] = $parsed_array['fourcc3'];
+
+        }
+
+        foreach ($parsed_array['comments'] as $key => $value) {
+            
+            if ($parsed_array['comments'][$key][0] === false) {
+                $parsed_array['comments'][$key][0] = '';
+            }
+        }
+
+        return true;
+    }
+
+
+
+    public static function RealAudioCodecFourCClookup($fourcc, $bitrate) {
+
+        // http://www.its.msstate.edu/net/real/reports/config/tags.stats             
+        // http://www.freelists.org/archives/matroska-devel/06-2003/fullthread18.html
+        
+        static $lookup;
+        
+        if (empty($lookup)) {
+            $lookup['14_4'][8000]  = 'RealAudio v2 (14.4kbps)';
+            $lookup['14.4'][8000]  = 'RealAudio v2 (14.4kbps)';
+            $lookup['lpcJ'][8000]  = 'RealAudio v2 (14.4kbps)';
+            $lookup['28_8'][15200] = 'RealAudio v2 (28.8kbps)';
+            $lookup['28.8'][15200] = 'RealAudio v2 (28.8kbps)';
+            $lookup['sipr'][4933]  = 'RealAudio v4 (5kbps Voice)';
+            $lookup['sipr'][6444]  = 'RealAudio v4 (6.5kbps Voice)';
+            $lookup['sipr'][8444]  = 'RealAudio v4 (8.5kbps Voice)';
+            $lookup['sipr'][16000] = 'RealAudio v4 (16kbps Wideband)';
+            $lookup['dnet'][8000]  = 'RealAudio v3 (8kbps Music)';
+            $lookup['dnet'][16000] = 'RealAudio v3 (16kbps Music Low Response)';
+            $lookup['dnet'][15963] = 'RealAudio v3 (16kbps Music Mid/High Response)';
+            $lookup['dnet'][20000] = 'RealAudio v3 (20kbps Music Stereo)';
+            $lookup['dnet'][32000] = 'RealAudio v3 (32kbps Music Mono)';
+            $lookup['dnet'][31951] = 'RealAudio v3 (32kbps Music Stereo)';
+            $lookup['dnet'][39965] = 'RealAudio v3 (40kbps Music Mono)';
+            $lookup['dnet'][40000] = 'RealAudio v3 (40kbps Music Stereo)';
+            $lookup['dnet'][79947] = 'RealAudio v3 (80kbps Music Mono)';
+            $lookup['dnet'][80000] = 'RealAudio v3 (80kbps Music Stereo)';
+
+            $lookup['dnet'][0] = 'RealAudio v3';
+            $lookup['sipr'][0] = 'RealAudio v4';
+            $lookup['cook'][0] = 'RealAudio G2';
+            $lookup['atrc'][0] = 'RealAudio 8';
+        }
+        
+        $round_bitrate = intval(round($bitrate));
+        
+        if (isset($lookup[$fourcc][$round_bitrate])) {
+            return $lookup[$fourcc][$round_bitrate];
+        }
+            
+        if (isset($lookup[$fourcc][0])) {
+            return $lookup[$fourcc][0];
+        }
+        
+        return $fourcc;
+    }
+
+}
+
+
+?>
\ No newline at end of file