forked from leftypol/leftypol
ffmpeg.php: format
This commit is contained in:
Zankaria
parent
2d54187c3a
commit
f70d70d1db
1 changed files with 102 additions and 67 deletions
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@ -5,17 +5,18 @@
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*/
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function get_webm_info($filename) {
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global $board, $config;
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global $config;
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$filename = escapeshellarg($filename);
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$ffprobe = $config['webm']['ffprobe_path'];
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$ffprobe_out = array();
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$webminfo = array();
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$ffprobe_out = [];
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$webminfo = [];
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exec("$ffprobe -v quiet -print_format json -show_format -show_streams $filename", $ffprobe_out);
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$ffprobe_out = json_decode(implode("\n", $ffprobe_out), 1);
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$validcheck = is_valid_webm($ffprobe_out);
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$webminfo['error'] = $validcheck['error'];
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if(empty($webminfo['error'])) {
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if (empty($webminfo['error'])) {
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$trackmap = $validcheck['trackmap'];
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$videoidx = $trackmap['videoat'][0];
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$webminfo['width'] = $ffprobe_out['streams'][$videoidx]['width'];
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@ -26,97 +27,131 @@ function get_webm_info($filename) {
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}
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function locate_webm_tracks($ffprobe_out) {
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$streams = $ffprobe_out['streams'];
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$streamcount = count($streams);
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$videoat = array();
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$audioat = array();
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$others = array();
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$streams = $ffprobe_out['streams'];
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$streamcount = count($streams);
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$video_at = [];
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$audio_at = [];
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$others = [];
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for ($k = 0; $k < $streamcount; $k++) {
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$stream = $streams[$k];
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$codec_type = $stream['codec_type'];
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for ($k = 0; $k < $streamcount; $k++) {
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$stream = $streams[$k];
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$codec_type = $stream['codec_type'];
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if ($codec_type === 'video') {
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$videoat[] = $k;
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} elseif($codec_type === 'audio') {
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$audioat[] = $k;
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} else {
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if (isset($others[$codec_type])) {
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$others[$codec_type][] = $k;
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} else {
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$others[$codec_type] = [$k];
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}
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}
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}
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if ($codec_type === 'video') {
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$video_at[] = $k;
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} elseif ($codec_type === 'audio') {
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$audio_at[] = $k;
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} else {
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if (isset($others[$codec_type])) {
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$others[$codec_type][] = $k;
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} else {
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$others[$codec_type] = [$k];
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}
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}
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}
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return array('videoat' => $videoat, 'audioat' => $audioat, 'others' => $others);
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/*
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var_dump example:
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array(3) {
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["videoat"]=> array(1) {
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[0]=> int(0)
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}
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["audioat"]=> array(1) {
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[0]=> int(1)
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}
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["others"]=> array(1) {
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["data"]=> array(2) {
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[0]=> int(2)
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[1]=> int(3)
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}
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}
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}
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*/
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return [ 'videoat' => $video_at, 'audioat' => $audio_at, 'others' => $others ];
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}
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function is_valid_webm($ffprobe_out) {
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global $board, $config;
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if (empty($ffprobe_out))
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return array('error' => array('code' => 1, 'msg' => $config['error']['genwebmerror']));
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global $config;
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if (empty($ffprobe_out)) {
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return [ 'error' => [ 'code' => 1, 'msg' => $config['error']['genwebmerror'] ] ];
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}
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$trackmap = locate_webm_tracks($ffprobe_out);
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// one video track
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if (count($trackmap['videoat']) != 1)
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return array('error' => array('code' => 2, 'msg' => $config['error']['invalidwebm']." [video track count]"));
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if (count($trackmap['videoat']) != 1) {
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return [
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'error' => [
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'code' => 2,
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'msg' => $config['error']['invalidwebm'] . ' [video track count]'
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]
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];
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}
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$videoidx = $trackmap['videoat'][0];
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$extension = pathinfo($ffprobe_out['format']['filename'], PATHINFO_EXTENSION);
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if ($extension === 'webm' && !stristr($ffprobe_out['format']['format_name'], 'mp4')) {
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if ($ffprobe_out['format']['format_name'] != 'matroska,webm')
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return array('error' => array('code' => 2, 'msg' => $config['error']['invalidwebm']."error 1"));
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if ($ffprobe_out['format']['format_name'] != 'matroska,webm') {
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return [
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'error' => [
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'code' => 2,
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'msg' => $config['error']['invalidwebm'] . 'error 1'
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]
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];
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}
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} elseif ($extension === 'mp4' || stristr($ffprobe_out['format']['format_name'], 'mp4')) {
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// if the video is not h264 or (there is audio but it's not aac)
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if (($ffprobe_out['streams'][$videoidx]['codec_name'] != 'h264') || ((count($trackmap['audioat']) > 0) && ($ffprobe_out['streams'][$trackmap['audioat'][0]]['codec_name'] != 'aac')))
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return array('error' => array('code' => 2, 'msg' => $config['error']['invalidwebm']." [h264/aac check]"));
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// If the video is not h264 or (there is audio but it's not aac).
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if (($ffprobe_out['streams'][$videoidx]['codec_name'] != 'h264') || ((count($trackmap['audioat']) > 0) && ($ffprobe_out['streams'][$trackmap['audioat'][0]]['codec_name'] != 'aac'))) {
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return [
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'error' => [
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'code' => 2,
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'msg' => $config['error']['invalidwebm'] . ' [h264/aac check]'
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]
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];
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}
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} else {
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return array('error' => array('code' => 1, 'msg' => $config['error']['genwebmerror']."error 3"));
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return [
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'error' => [
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'code' => 1,
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'msg' => $config['error']['genwebmerror'] . 'error 3'
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]
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];
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}
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if ((count($ffprobe_out['streams']) > 1) && (!$config['webm']['allow_audio'])) {
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return [
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'error' => [
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'code' => 3,
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'msg' => $config['error']['webmhasaudio'] . 'error 4'
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]
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];
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}
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if ((count($ffprobe_out['streams']) > 1) && (!$config['webm']['allow_audio']))
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return array('error' => array('code' => 3, 'msg' => $config['error']['webmhasaudio']."error 4"));
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if ((count($trackmap['audioat']) > 0) && !$config['webm']['allow_audio']) {
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return array('error' => array('code' => 3, 'msg' => $config['error']['webmhasaudio']."error 5"));
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return [
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'error' => [
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'code' => 3,
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'msg' => $config['error']['webmhasaudio'] . 'error 5'
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]
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];
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}
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if ($ffprobe_out['format']['duration'] > $config['webm']['max_length'])
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return array('error' => array('code' => 4, 'msg' => sprintf($config['error']['webmtoolong'], $config['webm']['max_length'])."error 6"));
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return array('error' => array(), 'trackmap' => $trackmap);
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if ($ffprobe_out['format']['duration'] > $config['webm']['max_length']) {
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return [
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'error' => [
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'code' => 4,
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'msg' => sprintf($config['error']['webmtoolong'], $config['webm']['max_length']) . 'error 6'
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]
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];
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}
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return [
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'error' => [],
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'trackmap' => $trackmap
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];
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}
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function make_webm_thumbnail($filename, $thumbnail, $width, $height, $duration) {
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global $board, $config;
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global $config;
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$filename = escapeshellarg($filename);
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$thumbnailfc = escapeshellarg($thumbnail); // Should be safe by default but you
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// can never be too safe.
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// Should be safe by default but you can never be too safe.
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$thumbnailfc = escapeshellarg($thumbnail);
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// Same as above.
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$width = escapeshellarg($width);
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$height = escapeshellarg($height); // Same as above.
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$height = escapeshellarg($height);
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$ffmpeg = $config['webm']['ffmpeg_path'];
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$ret = 0;
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$ffmpeg_out = array();
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$ffmpeg_out = [];
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exec("$ffmpeg -strict -2 -ss " . floor($duration / 2) . " -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
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// Work around for https://trac.ffmpeg.org/ticket/4362
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// Work around for https://trac.ffmpeg.org/ticket/4362.
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if (filesize($thumbnail) === 0) {
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// try again with first frame
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// Try again with first frame.
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exec("$ffmpeg -y -strict -2 -ss 0 -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
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clearstatcache();
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// failed if no thumbnail size even if ret code 0, ffmpeg is buggy
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// Failed if no thumbnail size even if ret code 0, ffmpeg is buggy.
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if (filesize($thumbnail) === 0) {
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$ret = 1;
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}
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