/**
* Extracts media metadata using MediaInfo
*
* @param string $ps_filepath file path
* @param string $ps_mediainfo_path optional path to MediaInfo binary. If omitted the path configured in external_applications.conf is used.
*
* @return array Extracted metadata
*/
function caExtractMetadataWithMediaInfo($ps_filepath, $ps_mediainfo_path = null)
{
if (!$ps_mediainfo_path) {
$ps_mediainfo_path = caGetExternalApplicationPath('mediainfo');
}
if (!caIsValidFilePath($ps_mediainfo_path)) {
return false;
}
//
// TODO: why don't we parse this from the XML output like civilized people?
//
exec($ps_mediainfo_path . " " . caEscapeShellArg($ps_filepath), $va_output, $vn_return);
$vs_cat = "GENERIC";
$va_return = array();
foreach ($va_output as $vs_line) {
$va_split = explode(":", $vs_line);
$vs_left = trim(array_shift($va_split));
$vs_right = trim(join(":", $va_split));
if (strlen($vs_right) == 0) {
// category line
$vs_cat = strtoupper($vs_left);
continue;
}
if (strlen($vs_left) && strlen($vs_right)) {
if ($vs_left != "Complete name") {
// we probably don't want to display temporary filenames
$va_return[$vs_cat][$vs_left] = $vs_right;
}
}
}
return $va_return;
}
/**
* Detects if PDFMiner (http://www.unixuser.org/~euske/python/pdfminer/index.html) is installed in the given path.
* @param string $ps_pdfminer_path path to PDFMiner
* @return boolean
*/
function caPDFMinerInstalled($ps_pdfminer_path = null)
{
if (!$ps_pdfminer_path) {
$ps_pdfminer_path = caGetExternalApplicationPath('pdfminer');
}
global $_MEDIAHELPER_PLUGIN_CACHE_PDFMINER;
if (isset($_MEDIAHELPER_PLUGIN_CACHE_PDFMINER[$ps_pdfminer_path])) {
return $_MEDIAHELPER_PLUGIN_CACHE_PDFMINER[$ps_pdfminer_path];
} else {
$_MEDIAHELPER_PLUGIN_CACHE_PDFMINER = array();
}
if (!caIsValidFilePath($ps_pdfminer_path)) {
return false;
}
if (!file_exists($ps_pdfminer_path)) {
return $_MEDIAHELPER_PLUGIN_CACHE_PDFMINER[$ps_pdfminer_path] = false;
}
if (caGetOSFamily() == OS_WIN32) {
return true;
}
// don't try exec test on Windows
exec($ps_pdfminer_path . " > /dev/null", $va_output, $vn_return);
if ($vn_return == 100) {
return $_MEDIAHELPER_PLUGIN_CACHE_PDFMINER[$ps_pdfminer_path] = true;
}
return $_MEDIAHELPER_PLUGIN_CACHE_PDFMINER[$ps_pdfminer_path] = false;
}
