function removeArtwork($file)
{
$cmd = 'metaflac --remove --block-type=PICTURE "' . $file . '"';
$res = \GlobalMethods::openProcess($cmd);
if ($res !== FALSE) {
//As of this writing, metaflac returns an exit status of
//zero (which cannot necessarily be relied upon on Windows)
//and does not produce any output on success. The latter fact is
//far more reliable than the exit status.
if ($res['stdOut'] == '' && $res['stdErr'] == '') {
return array('result' => TRUE, 'error' => NULL);
} else {
return array('result' => FALSE, 'error' => 'The call to `metaflac` produced output, which indicates an error condition: ' . \Utility::varToString($res));
}
} else {
return array('result' => FALSE, 'error' => 'The process could not be opened: ' . $cmd);
}
}
/**
* Important: NEVER call this function on a "master" file, as it removes the
* artwork from THAT file (and not a copy)!
* @param string $file
* @param array $tagData
* @param boolean $allowBlank
* @param string $coverFile
* @return multitype:boolean string |multitype:boolean NULL
*/
function transcodeFlacToAlac($file, $tagData = array(), $allowBlank = FALSE, $coverFile = NULL)
{
//In avconv version 9.16 (and possibly earlier), embedded artwork with a
//width or height that is not divisible by 2 will cause a failure, e.g.:
//"width not divisible by 2 (1419x1419)". So, we must strip any "odd" artwork.
//It's entirely possible that artwork was not copied in earlier versions, so
//this error did not occur.
$r = $this->tagger->removeArtwork($file);
$cmd1 = 'avconv -i';
//Tag data is copied automatically. Nice!!!
$pathParts = pathinfo($file);
$outfile = $pathParts['dirname'] . DIRECTORY_SEPARATOR . $pathParts['filename'] . '.m4a';
$cmd1 .= ' "' . $file . '" -acodec alac "' . $outfile . '"';
$r1 = \GlobalMethods::openProcess($cmd1);
if ($r1['exitCode'] == 0) {
//Write the cover artwork into the file, and fail gracefully.
//Note the unconventional letter-case of the executable name and its options
//(which are indeed case-sensitive).
if (is_string($coverFile) && strlen($coverFile) > 0) {
$cmd2 = 'AtomicParsley "' . $outfile . '" --artwork "' . $coverFile . '" --overWrite';
$r2 = \GlobalMethods::openProcess($cmd2);
if ($r2['exitCode'] != 0) {
$e = 'The FLAC file was transcoded to an ALAC file successfully, but the album artwork could not be embedded; the command was: "' . $cmd2 . '"';
\GlobalMethods::logCriticalError($e);
}
}
} else {
$error = 'The FLAC file could not be transcoded to an ALAC file; the command was: "' . $cmd1 . '"';
return array('result' => FALSE, 'error' => $error);
}
return array('result' => TRUE, 'error' => NULL);
}