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<?php
/*
* This file is part of PHP-FFmpeg.
*
* (c) Alchemy <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace FFMpeg\FFProbe;
use FFMpeg\Exception\InvalidArgumentException;
use FFMpeg\FFProbe;
class OutputParser implements OutputParserInterface
{
/**
* {@inheritdoc}
*/
public function parse($type, $data)
{
switch ($type) {
case FFProbe::TYPE_FORMAT:
return $this->parseFormat($data);
break;
case FFProbe::TYPE_STREAMS:
return $this->parseStreams($data);
break;
default:
throw new InvalidArgumentException(sprintf('Unknown data type %s', $type));
}
}
private function parseFormat($data)
{
$ret = [];
foreach (explode(PHP_EOL, $data) as $line) {
if (in_array($line, ['[FORMAT]', '[/FORMAT]'])) {
continue;
}
$chunks = explode('=', $line);
$key = array_shift($chunks);
if ('' === trim($key)) {
continue;
}
$value = trim(implode('=', $chunks));
if ('nb_streams' === $key) {
$value = (int) $value;
}
if (0 === strpos($key, 'TAG:')) {
if (!isset($ret['tags'])) {
$ret['tags'] = [];
}
$ret['tags'][substr($key, 4)] = $value;
} else {
$ret[$key] = $value;
}
}
return ['format' => $ret];
}
private function parseStreams($data)
{
$ret = [];
$n = -1;
foreach (explode(PHP_EOL, $data) as $line) {
if ('[STREAM]' == $line) {
++$n;
$ret[$n] = [];
continue;
}
if ('[/STREAM]' == $line) {
continue;
}
$chunks = explode('=', $line);
$key = array_shift($chunks);
if ('' === trim($key)) {
continue;
}
$value = trim(implode('=', $chunks));
if ('N/A' === $value) {
continue;
}
if ('profile' === $key && 'unknown' === $value) {
continue;
}
if (in_array($key, ['index', 'width', 'height', 'channels', 'bits_per_sample', 'has_b_frames', 'level', 'start_pts', 'duration_ts'])) {
$value = (int) $value;
}
if (0 === strpos($key, 'TAG:')) {
if (!isset($ret[$n]['tags'])) {
$ret[$n]['tags'] = [];
}
$ret[$n]['tags'][substr($key, 4)] = $value;
} elseif (0 === strpos($key, 'DISPOSITION:')) {
if (!isset($ret[$n]['disposition'])) {
$ret[$n]['disposition'] = [];
}
$ret[$n]['disposition'][substr($key, 12)] = $value;
} else {
$ret[$n][$key] = $value;
}
}
return ['streams' => $ret];
}
}