mambax7 /
xoopseditors
| Conditions | 46 |
| Paths | 4405 |
| Total Lines | 371 |
| Lines | 0 |
| Ratio | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.
For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.
Commonly applied refactorings include:
If many parameters/temporary variables are present:
| 1 | <?php |
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| 29 | public function Analyze() { |
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| 30 | |||
| 31 | $getid3 = $this->getid3; |
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| 32 | |||
| 33 | $getid3->include_module('audio-video.riff'); |
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| 34 | |||
| 35 | $getid3->info['fileformat'] = 'real'; |
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| 36 | $getid3->info['bitrate'] = 0; |
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| 37 | $getid3->info['playtime_seconds'] = 0; |
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| 38 | |||
| 39 | fseek($getid3->fp, $getid3->info['avdataoffset'], SEEK_SET); |
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| 40 | $chunk_counter = 0; |
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| 41 | |||
| 42 | while (ftell($getid3->fp) < $getid3->info['avdataend']) { |
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| 43 | |||
| 44 | $chunk_data = fread($getid3->fp, 8); |
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| 45 | $chunk_name = substr($chunk_data, 0, 4); |
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| 46 | $chunk_size = getid3_lib::BigEndian2Int(substr($chunk_data, 4, 4)); |
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| 47 | |||
| 48 | if ($chunk_name == '.ra'."\xFD") { |
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| 49 | $chunk_data .= fread($getid3->fp, $chunk_size - 8); |
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| 50 | |||
| 51 | if ($this->ParseOldRAheader(substr($chunk_data, 0, 128), $getid3->info['real']['old_ra_header'])) { |
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| 52 | |||
| 53 | $getid3->info['audio']['dataformat'] = 'real'; |
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| 54 | $getid3->info['audio']['lossless'] = false; |
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| 55 | $getid3->info['audio']['sample_rate'] = $getid3->info['real']['old_ra_header']['sample_rate']; |
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| 56 | $getid3->info['audio']['bits_per_sample'] = $getid3->info['real']['old_ra_header']['bits_per_sample']; |
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| 57 | $getid3->info['audio']['channels'] = $getid3->info['real']['old_ra_header']['channels']; |
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| 58 | |||
| 59 | $getid3->info['playtime_seconds'] = 60 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['real']['old_ra_header']['bytes_per_minute']); |
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| 60 | $getid3->info['audio']['bitrate'] = 8 * ($getid3->info['real']['old_ra_header']['audio_bytes'] / $getid3->info['playtime_seconds']); |
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| 61 | $getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($getid3->info['real']['old_ra_header']['fourcc'], $getid3->info['audio']['bitrate']); |
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| 62 | |||
| 63 | foreach ($getid3->info['real']['old_ra_header']['comments'] as $key => $value_array) { |
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| 64 | |||
| 65 | if (strlen(trim($value_array[0])) > 0) { |
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| 66 | $getid3->info['real']['comments'][$key][] = trim($value_array[0]); |
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| 67 | } |
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| 68 | } |
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| 69 | return true; |
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| 70 | } |
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| 71 | |||
| 72 | throw new getid3_exception('There was a problem parsing this RealAudio file. Please submit it for analysis to http://www.getid3.org/upload/ or [email protected]'); |
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| 73 | } |
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| 74 | |||
| 75 | $getid3->info['real']['chunks'][$chunk_counter] = array (); |
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| 76 | $info_real_chunks_current_chunk = &$getid3->info['real']['chunks'][$chunk_counter]; |
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| 77 | |||
| 78 | $info_real_chunks_current_chunk['name'] = $chunk_name; |
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| 79 | $info_real_chunks_current_chunk['offset'] = ftell($getid3->fp) - 8; |
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| 80 | $info_real_chunks_current_chunk['length'] = $chunk_size; |
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| 81 | |||
| 82 | if (($info_real_chunks_current_chunk['offset'] + $info_real_chunks_current_chunk['length']) > $getid3->info['avdataend']) { |
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| 83 | $getid3->warning('Chunk "'.$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'); |
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| 84 | return false; |
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| 85 | } |
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| 86 | |||
| 87 | if ($chunk_size > (getid3::FREAD_BUFFER_SIZE + 8)) { |
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| 88 | $chunk_data .= fread($getid3->fp, getid3::FREAD_BUFFER_SIZE - 8); |
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| 89 | fseek($getid3->fp, $info_real_chunks_current_chunk['offset'] + $chunk_size, SEEK_SET); |
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| 90 | |||
| 91 | } elseif(($chunk_size - 8) > 0) { |
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| 92 | $chunk_data .= fread($getid3->fp, $chunk_size - 8); |
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| 93 | } |
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| 94 | $offset = 8; |
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| 95 | |||
| 96 | switch ($chunk_name) { |
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| 97 | |||
| 98 | case '.RMF': // RealMedia File Header |
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| 99 | |||
| 100 | $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 101 | $offset += 2; |
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| 102 | |||
| 103 | switch ($info_real_chunks_current_chunk['object_version']) { |
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| 104 | |||
| 105 | case 0: |
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| 106 | $info_real_chunks_current_chunk['file_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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| 107 | $offset += 4; |
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| 108 | |||
| 109 | $info_real_chunks_current_chunk['headers_count'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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| 110 | $offset += 4; |
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| 111 | break; |
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| 112 | |||
| 113 | default: |
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| 114 | //$getid3->warning('Expected .RMF-object_version to be "0", actual value is "'.$info_real_chunks_current_chunk['object_version'].'" (should not be a problem)'; |
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| 115 | break; |
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| 116 | |||
| 117 | } |
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| 118 | break; |
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| 119 | |||
| 120 | |||
| 121 | case 'PROP': // Properties Header |
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| 122 | |||
| 123 | $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 124 | $offset += 2; |
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| 125 | |||
| 126 | if ($info_real_chunks_current_chunk['object_version'] == 0) { |
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| 127 | |||
| 128 | getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, |
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| 129 | array ( |
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| 130 | 'max_bit_rate' => 4, |
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| 131 | 'avg_bit_rate' => 4, |
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| 132 | 'max_packet_size' => 4, |
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| 133 | 'avg_packet_size' => 4, |
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| 134 | 'num_packets' => 4, |
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| 135 | 'duration' => 4, |
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| 136 | 'preroll' => 4, |
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| 137 | 'index_offset' => 4, |
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| 138 | 'data_offset' => 4, |
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| 139 | 'num_streams' => 2, |
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| 140 | 'flags_raw' => 2 |
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| 141 | ) |
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| 142 | ); |
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| 143 | $offset += 40; |
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| 144 | |||
| 145 | $getid3->info['playtime_seconds'] = $info_real_chunks_current_chunk['duration'] / 1000; |
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| 146 | if ($info_real_chunks_current_chunk['duration'] > 0) { |
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| 147 | $getid3->info['bitrate'] += $info_real_chunks_current_chunk['avg_bit_rate']; |
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| 148 | } |
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| 149 | |||
| 150 | $info_real_chunks_current_chunk['flags']['save_enabled'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0001); |
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| 151 | $info_real_chunks_current_chunk['flags']['perfect_play'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0002); |
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| 152 | $info_real_chunks_current_chunk['flags']['live_broadcast'] = (bool)($info_real_chunks_current_chunk['flags_raw'] & 0x0004); |
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| 153 | } |
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| 154 | break; |
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| 155 | |||
| 156 | |||
| 157 | case 'MDPR': // Media Properties Header |
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| 158 | |||
| 159 | $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 160 | $offset += 2; |
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| 161 | |||
| 162 | if ($info_real_chunks_current_chunk['object_version'] == 0) { |
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| 163 | |||
| 164 | getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, |
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| 165 | array ( |
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| 166 | 'stream_number' => 2, |
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| 167 | 'max_bit_rate' => 4, |
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| 168 | 'avg_bit_rate' => 4, |
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| 169 | 'max_packet_size' => 4, |
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| 170 | 'avg_packet_size' => 4, |
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| 171 | 'start_time' => 4, |
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| 172 | 'preroll' => 4, |
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| 173 | 'duration' => 4, |
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| 174 | 'stream_name_size' => 1 |
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| 175 | ) |
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| 176 | ); |
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| 177 | $offset += 31; |
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| 178 | |||
| 179 | $info_real_chunks_current_chunk['stream_name'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['stream_name_size']); |
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| 180 | $offset += $info_real_chunks_current_chunk['stream_name_size']; |
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| 181 | |||
| 182 | $info_real_chunks_current_chunk['mime_type_size'] = getid3_lib::BigEndian2Int($chunk_data{$offset++}); |
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| 183 | |||
| 184 | $info_real_chunks_current_chunk['mime_type'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['mime_type_size']); |
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| 185 | $offset += $info_real_chunks_current_chunk['mime_type_size']; |
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| 186 | |||
| 187 | $info_real_chunks_current_chunk['type_specific_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 4)); |
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| 188 | $offset += 4; |
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| 189 | |||
| 190 | $info_real_chunks_current_chunk['type_specific_data'] = substr($chunk_data, $offset, $info_real_chunks_current_chunk['type_specific_len']); |
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| 191 | $offset += $info_real_chunks_current_chunk['type_specific_len']; |
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| 192 | |||
| 193 | $info_real_chunks_current_chunk_typespecificdata = &$info_real_chunks_current_chunk['type_specific_data']; |
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| 194 | |||
| 195 | switch ($info_real_chunks_current_chunk['mime_type']) { |
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| 196 | |||
| 197 | case 'video/x-pn-realvideo': |
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| 198 | case 'video/x-pn-multirate-realvideo': |
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| 199 | // http://www.freelists.org/archives/matroska-devel/07-2003/msg00010.html |
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| 200 | |||
| 201 | $info_real_chunks_current_chunk['video_info'] = array (); |
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| 202 | $info_real_chunks_current_chunk_video_info = &$info_real_chunks_current_chunk['video_info']; |
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| 203 | |||
| 204 | getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk_video_info, $info_real_chunks_current_chunk_typespecificdata, 0, |
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| 205 | array ( |
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| 206 | 'dwSize' => 4, |
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| 207 | 'fourcc1' => -4, |
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| 208 | 'fourcc2' => -4, |
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| 209 | 'width' => 2, |
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| 210 | 'height' => 2, |
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| 211 | 'bits_per_sample' => 2, |
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| 212 | 'IGNORE-unknown1' => 2, |
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| 213 | 'IGNORE-unknown2' => 2, |
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| 214 | 'frames_per_second' => 2, |
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| 215 | 'IGNORE-unknown3' => 2, |
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| 216 | 'IGNORE-unknown4' => 2, |
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| 217 | 'IGNORE-unknown5' => 2, |
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| 218 | 'IGNORE-unknown6' => 2, |
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| 219 | 'IGNORE-unknown7' => 2, |
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| 220 | 'IGNORE-unknown8' => 2, |
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| 221 | 'IGNORE-unknown9' => 2 |
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| 222 | ) |
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| 223 | ); |
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| 224 | |||
| 225 | $info_real_chunks_current_chunk_video_info['codec'] = getid3_riff::RIFFfourccLookup($info_real_chunks_current_chunk_video_info['fourcc2']); |
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| 226 | |||
| 227 | $getid3->info['video']['resolution_x'] = $info_real_chunks_current_chunk_video_info['width']; |
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| 228 | $getid3->info['video']['resolution_y'] = $info_real_chunks_current_chunk_video_info['height']; |
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| 229 | $getid3->info['video']['frame_rate'] = (float)$info_real_chunks_current_chunk_video_info['frames_per_second']; |
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| 230 | $getid3->info['video']['codec'] = $info_real_chunks_current_chunk_video_info['codec']; |
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| 231 | $getid3->info['video']['bits_per_sample'] = $info_real_chunks_current_chunk_video_info['bits_per_sample']; |
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| 232 | break; |
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| 233 | |||
| 234 | |||
| 235 | case 'audio/x-pn-realaudio': |
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| 236 | case 'audio/x-pn-multirate-realaudio': |
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| 237 | |||
| 238 | $this->ParseOldRAheader($info_real_chunks_current_chunk_typespecificdata, $info_real_chunks_current_chunk['parsed_audio_data']); |
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| 239 | |||
| 240 | $getid3->info['audio']['sample_rate'] = $info_real_chunks_current_chunk['parsed_audio_data']['sample_rate']; |
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| 241 | $getid3->info['audio']['bits_per_sample'] = $info_real_chunks_current_chunk['parsed_audio_data']['bits_per_sample']; |
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| 242 | $getid3->info['audio']['channels'] = $info_real_chunks_current_chunk['parsed_audio_data']['channels']; |
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| 243 | |||
| 244 | if (!empty($getid3->info['audio']['dataformat'])) { |
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| 245 | foreach ($getid3->info['audio'] as $key => $value) { |
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| 246 | if ($key != 'streams') { |
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| 247 | $getid3->info['audio']['streams'][$info_real_chunks_current_chunk['stream_number']][$key] = $value; |
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| 248 | } |
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| 249 | } |
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| 250 | } |
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| 251 | break; |
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| 252 | |||
| 253 | |||
| 254 | case 'logical-fileinfo': |
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| 255 | |||
| 256 | $info_real_chunks_current_chunk['logical_fileinfo']['logical_fileinfo_length'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 0, 4)); |
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| 257 | // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown1'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 4, 4)); |
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| 258 | $info_real_chunks_current_chunk['logical_fileinfo']['num_tags'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 8, 4)); |
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| 259 | // $info_real_chunks_current_chunk['logical_fileinfo']['IGNORE-unknown2'] = getid3_lib::BigEndian2Int(substr($info_real_chunks_current_chunk_typespecificdata, 12, 4)); |
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| 260 | break; |
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| 261 | |||
| 262 | } |
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| 263 | |||
| 264 | |||
| 265 | if (empty($getid3->info['playtime_seconds'])) { |
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| 266 | $getid3->info['playtime_seconds'] = max($getid3->info['playtime_seconds'], ($info_real_chunks_current_chunk['duration'] + $info_real_chunks_current_chunk['start_time']) / 1000); |
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| 267 | } |
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| 268 | |||
| 269 | if ($info_real_chunks_current_chunk['duration'] > 0) { |
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| 270 | |||
| 271 | switch ($info_real_chunks_current_chunk['mime_type']) { |
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| 272 | |||
| 273 | case 'audio/x-pn-realaudio': |
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| 274 | case 'audio/x-pn-multirate-realaudio': |
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| 275 | |||
| 276 | $getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
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| 277 | $getid3->info['audio']['codec'] = $this->RealAudioCodecFourCClookup($info_real_chunks_current_chunk['parsed_audio_data']['fourcc'], $getid3->info['audio']['bitrate']); |
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| 278 | $getid3->info['audio']['dataformat'] = 'real'; |
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| 279 | $getid3->info['audio']['lossless'] = false; |
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| 280 | break; |
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| 281 | |||
| 282 | |||
| 283 | case 'video/x-pn-realvideo': |
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| 284 | case 'video/x-pn-multirate-realvideo': |
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| 285 | |||
| 286 | $getid3->info['video']['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
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| 287 | $getid3->info['video']['bitrate_mode'] = 'cbr'; |
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| 288 | $getid3->info['video']['dataformat'] = 'real'; |
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| 289 | $getid3->info['video']['lossless'] = false; |
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| 290 | $getid3->info['video']['pixel_aspect_ratio'] = (float)1; |
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| 291 | break; |
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| 292 | |||
| 293 | |||
| 294 | case 'audio/x-ralf-mpeg4-generic': |
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| 295 | |||
| 296 | $getid3->info['audio']['bitrate'] = (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0) + $info_real_chunks_current_chunk['avg_bit_rate']; |
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| 297 | $getid3->info['audio']['codec'] = 'RealAudio Lossless'; |
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| 298 | $getid3->info['audio']['dataformat'] = 'real'; |
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| 299 | $getid3->info['audio']['lossless'] = true; |
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| 300 | break; |
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| 301 | |||
| 302 | } |
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| 303 | |||
| 304 | $getid3->info['bitrate'] = (isset($getid3->info['video']['bitrate']) ? $getid3->info['video']['bitrate'] : 0) + (isset($getid3->info['audio']['bitrate']) ? $getid3->info['audio']['bitrate'] : 0); |
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| 305 | } |
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| 306 | } |
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| 307 | break; |
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| 308 | |||
| 309 | |||
| 310 | case 'CONT': // Content Description Header (text comments) |
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| 311 | |||
| 312 | $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 313 | $offset += 2; |
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| 314 | |||
| 315 | if ($info_real_chunks_current_chunk['object_version'] == 0) { |
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| 316 | |||
| 317 | $info_real_chunks_current_chunk['title_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 318 | $offset += 2; |
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| 319 | |||
| 320 | $info_real_chunks_current_chunk['title'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['title_len']); |
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| 321 | $offset += $info_real_chunks_current_chunk['title_len']; |
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| 322 | |||
| 323 | $info_real_chunks_current_chunk['artist_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 324 | $offset += 2; |
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| 325 | |||
| 326 | $info_real_chunks_current_chunk['artist'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['artist_len']); |
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| 327 | $offset += $info_real_chunks_current_chunk['artist_len']; |
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| 328 | |||
| 329 | $info_real_chunks_current_chunk['copyright_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
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| 330 | $offset += 2; |
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| 331 | |||
| 332 | $info_real_chunks_current_chunk['copyright'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['copyright_len']); |
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| 333 | $offset += $info_real_chunks_current_chunk['copyright_len']; |
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| 334 | |||
| 335 | $info_real_chunks_current_chunk['comment_len'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
||
| 336 | $offset += 2; |
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| 337 | |||
| 338 | $info_real_chunks_current_chunk['comment'] = (string) substr($chunk_data, $offset, $info_real_chunks_current_chunk['comment_len']); |
||
| 339 | $offset += $info_real_chunks_current_chunk['comment_len']; |
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| 340 | |||
| 341 | foreach (array ('title'=>'title', 'artist'=>'artist', 'copyright'=>'copyright', 'comment'=>'comment') as $key => $val) { |
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| 342 | if ($info_real_chunks_current_chunk[$key]) { |
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| 343 | $getid3->info['real']['comments'][$val][] = trim($info_real_chunks_current_chunk[$key]); |
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| 344 | } |
||
| 345 | } |
||
| 346 | } |
||
| 347 | break; |
||
| 348 | |||
| 349 | |||
| 350 | case 'DATA': // Data Chunk Header |
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| 351 | |||
| 352 | // do nothing |
||
| 353 | break; |
||
| 354 | |||
| 355 | |||
| 356 | case 'INDX': // Index Section Header |
||
| 357 | |||
| 358 | $info_real_chunks_current_chunk['object_version'] = getid3_lib::BigEndian2Int(substr($chunk_data, $offset, 2)); |
||
| 359 | $offset += 2; |
||
| 360 | |||
| 361 | if ($info_real_chunks_current_chunk['object_version'] == 0) { |
||
| 362 | |||
| 363 | getid3_lib::ReadSequence('BigEndian2Int', $info_real_chunks_current_chunk, $chunk_data, $offset, |
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| 364 | array ( |
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| 365 | 'num_indices' => 4, |
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| 366 | 'stream_number' => 2, |
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| 367 | 'next_index_header' => 4 |
||
| 368 | ) |
||
| 369 | ); |
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| 370 | $offset += 10; |
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| 371 | |||
| 372 | if ($info_real_chunks_current_chunk['next_index_header'] == 0) { |
||
| 373 | // last index chunk found, ignore rest of file |
||
| 374 | break 2; |
||
| 375 | } else { |
||
| 376 | // non-last index chunk, seek to next index chunk (skipping actual index data) |
||
| 377 | fseek($getid3->fp, $info_real_chunks_current_chunk['next_index_header'], SEEK_SET); |
||
| 378 | } |
||
| 379 | } |
||
| 380 | break; |
||
| 381 | |||
| 382 | |||
| 383 | default: |
||
| 384 | $getid3->warning('Unhandled RealMedia chunk "'.$chunk_name.'" at offset '.$info_real_chunks_current_chunk['offset']); |
||
| 385 | break; |
||
| 386 | } |
||
| 387 | $chunk_counter++; |
||
| 388 | } |
||
| 389 | |||
| 390 | if (!empty($getid3->info['audio']['streams'])) { |
||
| 391 | |||
| 392 | $getid3->info['audio']['bitrate'] = 0; |
||
| 393 | |||
| 394 | foreach ($getid3->info['audio']['streams'] as $key => $value_array) { |
||
| 395 | $getid3->info['audio']['bitrate'] += $value_array['bitrate']; |
||
| 396 | } |
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| 397 | } |
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| 398 | |||
| 399 | return true; |
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| 400 | } |
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| 591 | ?> |
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Using a closing tag in PHP files that only contain PHP code is not recommended as you might accidentally add whitespace after the closing tag which would then be output by PHP. This can cause severe problems, for example headers cannot be sent anymore.
A simple precaution is to leave off the closing tag as it is not required, and it also has no negative effects whatsoever.