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Diffstat (limited to 'modules/getid3/write.lyrics3.php')
| -rw-r--r-- | modules/getid3/write.lyrics3.php | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/modules/getid3/write.lyrics3.php b/modules/getid3/write.lyrics3.php new file mode 100644 index 00000000..1b5be946 --- /dev/null +++ b/modules/getid3/write.lyrics3.php @@ -0,0 +1,209 @@ +<?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> | +// +----------------------------------------------------------------------+ +// | write.lyrics3.php | +// | writing module for lyrics3 2.00 tags | +// | dependencies: module.tag.lyrics3.php. | +// | dependencies: module.tag.id3v1.php | +// +----------------------------------------------------------------------+ +// +// $Id: write.lyrics3.php,v 1.5 2006/11/20 16:13:39 ah Exp $ + + + +class getid3_write_lyrics3 extends getid3_handler_write +{ + public $synched; + public $random_inhibited; + + public $lyrics; + public $comment; + public $author; + public $title; + public $artist; + public $album; + public $images; + + + public function read() { + + $engine = new getid3; + $engine->filename = $this->filename; + $engine->fp = fopen($this->filename, 'rb'); + $engine->include_module('tag.lyrics3'); + + $tag = new getid3_lyrics3($engine); + $tag->Analyze(); + + if (!isset($engine->info['lyrics3']['tag_offset_start'])) { + return; + } + + $this->lyrics = @$engine->info['lyrics3']['raw']['LYR']; + $this->comment = @$engine->info['lyrics3']['raw']['INF']; + $this->author = @$engine->info['lyrics3']['raw']['AUT']; + $this->title = @$engine->info['lyrics3']['raw']['ETT']; + $this->artist = @$engine->info['lyrics3']['raw']['EAR']; + $this->album = @$engine->info['lyrics3']['raw']['EAL']; + $this->images = @$engine->info['lyrics3']['raw']['IMG']; + + return true; + } + + + public function write() { + + // remove existing apetag + $this->remove(); + + $engine = new getid3; + $engine->filename = $this->filename; + $engine->fp = fopen($this->filename, 'rb'); + $engine->include_module('tag.id3v1'); + + $tag = new getid3_id3v1($engine); + $tag->Analyze(); + + $apetag = $this->generate_tag(); + + if (!$fp = @fopen($this->filename, 'a+b')) { + throw new getid3_exception('Could not open a+b: ' . $this->filename); + } + + // init: audio ends at eof + $post_audio_offset = filesize($this->filename); + + // id3v1 tag present + if (@$engine->info['id3v1']['tag_offset_start']) { + + // audio ends before id3v1 tag + $post_audio_offset = $engine->info['id3v1']['tag_offset_start']; + } + + // seek to end of audio data + fseek($fp, $post_audio_offset, SEEK_SET); + + // save data after audio data + $post_audio_data = ''; + if (filesize($this->filename) > $post_audio_offset) { + $post_audio_data = fread($fp, filesize($this->filename) - $post_audio_offset); + } + + // truncate file before start of new apetag + fseek($fp, $post_audio_offset, SEEK_SET); + ftruncate($fp, ftell($fp)); + + // write new apetag + fwrite($fp, $apetag, strlen($apetag)); + + // rewrite data after audio + if (!empty($post_audio_data)) { + fwrite($fp, $post_audio_data, strlen($post_audio_data)); + } + + fclose($fp); + clearstatcache(); + + return true; + } + + + protected function generate_tag() { + + // define fields + static $fields = array ( + 'lyrics' => 'LYR', + 'comment' => 'INF', + 'author' => 'AUT', + 'title' => 'ETT', + 'artist' => 'EAR', + 'album' => 'EAL', + 'images' => 'IMG' + ); + + // loop thru fields and add to frames + $frames = ''; + foreach ($fields as $field => $frame_name) { + + // field set? + if ($this->$field) { + $frames .= $frame_name . str_pad(strlen($this->$field), 5, '0', STR_PAD_LEFT) . $this->$field; + } + } + + if (!$frames) { + throw new getid3_exception('Cannot write empty tag, use remove() instead.'); + } + + // header + $result = 'LYRICSBEGIN'; + + // indicator frame + $result .= 'IND00003' . ($this->lyrics ? '1' : '0') . ($this->synched ? '1' : '0') . ($this->random_inibited ? '1' : '0'); + + // other frames + $result .= $frames; + + // footer + $result .= str_pad(strlen($result), 6, '0', STR_PAD_LEFT); + $result .= 'LYRICS200'; + + return $result; + } + + + public function remove() { + + $engine = new getid3; + $engine->filename = $this->filename; + $engine->fp = fopen($this->filename, 'rb'); + $engine->include_module('tag.lyrics3'); + + $tag = new getid3_lyrics3($engine); + $tag->Analyze(); + + if (isset($engine->info['lyrics3']['tag_offset_start']) && isset($engine->info['lyrics3']['tag_offset_end'])) { + + if (!$fp = @fopen($this->filename, 'a+b')) { + throw new getid3_exception('Could not open a+b: ' . $this->filename); + } + + // get data after tag + fseek($fp, $engine->info['lyrics3']['tag_offset_end'], SEEK_SET); + $data_after_lyrics3 = ''; + if (filesize($this->filename) > $engine->info['lyrics3']['tag_offset_end']) { + $data_after_lyrics3 = fread($fp, filesize($this->filename) - $engine->info['lyrics3']['tag_offset_end']); + } + + // truncate file before start of tag and seek to end + ftruncate($fp, $engine->info['lyrics3']['tag_offset_start']); + + // rewrite data after tag + if (!empty($data_after_lyrics3)) { + fseek($fp, $engine->info['lyrics3']['tag_offset_start'], SEEK_SET); + fwrite($fp, $data_after_lyrics3, strlen($data_after_lyrics3)); + } + + fclose($fp); + clearstatcache(); + } + + // success when removing non-existant tag + return true; + } +} + +?>
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