1, 'msg' => $config['error']['genwebmerror']); $extension = pathinfo($ffprobe_out['format']['filename'], PATHINFO_EXTENSION); if ($extension === 'webm') { if ($ffprobe_out['format']['format_name'] != 'matroska,webm') return array('code' => 2, 'msg' => $config['error']['invalidwebm']); } elseif ($extension === 'mp4') { if ($ffprobe_out['streams'][0]['codec_name'] != 'h264' && $ffprobe_out['streams'][1]['codec_name'] != 'aac') return array('code' => 2, 'msg' => $config['error']['invalidwebm']); } else { return array('code' => 1, 'msg' => $config['error']['genwebmerror']); } if ((count($ffprobe_out['streams']) > 1) && (!$config['webm']['allow_audio'])) return array('code' => 3, 'msg' => $config['error']['webmhasaudio']); if (empty($ffprobe_out['streams'][0]['width']) || (empty($ffprobe_out['streams'][0]['height']))) return array('code' => 2, 'msg' => $config['error']['invalidwebm']); if ($ffprobe_out['format']['duration'] > $config['webm']['max_length']) return array('code' => 4, 'msg' => sprintf($config['error']['webmtoolong'], $config['webm']['max_length'])); } function make_webm_thumbnail($filename, $thumbnail, $width, $height, $duration) { global $board, $config; $filename = escapeshellarg($filename); $thumbnailfc = escapeshellarg($thumbnail); // Should be safe by default but you // can never be too safe. $ffmpeg = $config['webm']['ffmpeg_path']; $ret = 0; $ffmpeg_out = array(); exec("$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, $ret); // Work around for https://trac.ffmpeg.org/ticket/4362 if (filesize($thumbnail) === 0) { // try again with first frame 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, $ret); clearstatcache(); // failed if no thumbnail size even if ret code 0, ffmpeg is buggy if (filesize($thumbnail) === 0) { $ret = 1; } } return $ret; }