diff options
Diffstat (limited to 'modules/getid3/write.apetag.php')
| -rw-r--r-- | modules/getid3/write.apetag.php | 90 |
1 files changed, 45 insertions, 45 deletions
diff --git a/modules/getid3/write.apetag.php b/modules/getid3/write.apetag.php index e154e814..32ba33b2 100644 --- a/modules/getid3/write.apetag.php +++ b/modules/getid3/write.apetag.php @@ -27,73 +27,73 @@ class getid3_write_apetag extends getid3_handler_write { - + public $comments; - + public function read() { - + $engine = new getid3; $engine->filename = $this->filename; $engine->fp = fopen($this->filename, 'rb'); $engine->include_module('tag.apetag'); - + $tag = new getid3_apetag($engine); $tag->Analyze(); if (!isset($engine->info['ape']['comments'])) { return; } - + $this->comments = $engine->info['ape']['comments']; - + // convert single element arrays to string foreach ($this->comments as $key => $value) { if (sizeof($value) == 1) { $this->comments[$key] = $value[0]; } } - + 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'); $engine->include_module('tag.lyrics3'); - + $tag = new getid3_id3v1($engine); $tag->Analyze(); - + $tag = new getid3_lyrics3($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); - + // lyrics3 tag present if (@$engine->info['lyrics3']['tag_offset_start']) { - + // audio ends before lyrics3 tag $post_audio_offset = @$engine->info['lyrics3']['tag_offset_start']; } // id3v1 tag present elseif (@$engine->info['id3v1']['tag_offset_start']) { - + // audio ends before id3v1 tag $post_audio_offset = $engine->info['id3v1']['tag_offset_start']; } @@ -110,24 +110,24 @@ class getid3_write_apetag extends getid3_handler_write // truncate file before start of new apetag fseek($fp, $post_audio_offset, SEEK_SET); ftruncate($fp, ftell($fp)); - + // write new apetag fwrite($fp, $apetag, strlen($apetag)); - - // rewrite data after audio + + // rewrite data after audio if (!empty($post_audio_data)) { fwrite($fp, $post_audio_data, strlen($post_audio_data)); } - + fclose($fp); clearstatcache(); - + return true; } public function remove() { - + $engine = new getid3; $engine->filename = $this->filename; $engine->fp = fopen($this->filename, 'rb'); @@ -137,7 +137,7 @@ class getid3_write_apetag extends getid3_handler_write $tag->Analyze(); if (isset($engine->info['ape']['tag_offset_start']) && isset($engine->info['ape']['tag_offset_end'])) { - + if (!$fp = @fopen($this->filename, 'a+b')) { throw new getid3_exception('Could not open a+b: ' . $this->filename); } @@ -148,7 +148,7 @@ class getid3_write_apetag extends getid3_handler_write $data_after_ape = fread($fp, filesize($this->filename) - $engine->info['ape']['tag_offset_end']); } - // truncate file before start of apetag + // truncate file before start of apetag ftruncate($fp, $engine->info['ape']['tag_offset_start']); // rewrite data after apetag @@ -156,36 +156,36 @@ class getid3_write_apetag extends getid3_handler_write fseek($fp, $engine->info['ape']['tag_offset_start'], SEEK_SET); fwrite($fp, $data_after_ape, strlen($data_after_ape)); } - + fclose($fp); clearstatcache(); } - - // success when removing non-existant tag + + // success when removing non-existant tag return true; } protected function generate_tag() { - + // NOTE: All data passed to this function must be UTF-8 format $items = array(); if (!is_array($this->comments)) { throw new getid3_exception('Cannot write empty tag, use remove() instead.'); } - + foreach ($this->comments as $key => $values) { - + // http://www.personal.uni-jena.de/~pfk/mpp/sv8/apekey.html - // A case-insensitive vobiscomment field name that may consist of ASCII 0x20 through 0x7E. + // A case-insensitive vobiscomment field name that may consist of ASCII 0x20 through 0x7E. // ASCII 0x41 through 0x5A inclusive (A-Z) is to be considered equivalent to ASCII 0x61 through 0x7A inclusive (a-z). if (preg_match("/[^\x20-\x7E]/", $key)) { throw new getid3_exception('Field name "' . $key . '" contains invalid character(s).'); } - + $key = strtolower($key); - + // convert single value comment to array if (!is_array($values)) { $values = array ($values); @@ -199,7 +199,7 @@ class getid3_write_apetag extends getid3_handler_write // length of the assigned value in bytes $tag_item = getid3_lib::LittleEndian2String(strlen($value_string), 4); - + $tag_item .= "\x00\x00\x00\x00" . $key . "\x00" . $value_string; $items[] = $tag_item; @@ -207,10 +207,10 @@ class getid3_write_apetag extends getid3_handler_write return $this->generate_header_footer($items, true) . implode('', $items) . $this->generate_header_footer($items, false); } - + protected function generate_header_footer(&$items, $is_header=false) { - + $comments_length = 0; foreach ($items as $item_data) { $comments_length += strlen($item_data); @@ -225,25 +225,25 @@ class getid3_write_apetag extends getid3_handler_write return $header; } - + protected function generate_flags($header=true, $footer=true, $is_header=false, $encoding_id=0, $read_only=false) { - + $flags = array_fill(0, 4, 0); - + // Tag contains a header if ($header) { - $flags[0] |= 0x80; + $flags[0] |= 0x80; } - + // Tag contains no footer if (!$footer) { - $flags[0] |= 0x40; + $flags[0] |= 0x40; } - + // This is the header, not the footer if ($is_header) { - $flags[0] |= 0x20; + $flags[0] |= 0x20; } // 0: Item contains text information coded in UTF-8 @@ -254,12 +254,12 @@ class getid3_write_apetag extends getid3_handler_write // Tag or Item is Read Only if ($read_only) { - $flags[3] |= 0x01; + $flags[3] |= 0x01; } return chr($flags[3]).chr($flags[2]).chr($flags[1]).chr($flags[0]); } - + } ?>
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