php 调用ffmpeg获取视频信息的简单实现

<?php// 定义ffmpeg路径及命令常量define('FFMPEG_CMD', '/usr/local/bin/ffmpeg -i "%s" 2>&1');/** * 使用ffmpeg获取视频信息 * @param String $file 视频文件 * @return Array */function getVideoInfo($file){ ob_start(); passthru(sprintf(FFMPEG_CMD, $file)); $video_info = ob_get_contents(); ob_end_clean(); // 使用输出缓冲，获取ffmpeg所有输出内容 $ret = array(); // Duration: 00:33:42.64, start: 0.000000, bitrate: 152 kb/s if (preg_match("/Duration: (.*?), start: (.*?), bitrate: (/d*) kb//s/", $video_info, $matches)){  $ret['duration'] = $matches[1]; // 视频长度  $duration = explode(':', $matches[1]);  $ret['seconds'] = $duration[0]*3600 + $duration[1]*60 + $duration[2]; // 转为秒数  $ret['start'] = $matches[2]; // 开始时间  $ret['bitrate'] = $matches[3]; // bitrate 码率 单位kb } // Stream #0:1: Video: rv20 (RV20 / 0x30325652), yuv420p, 352x288, 117 kb/s, 15 fps, 15 tbr, 1k tbn, 1k tbc if(preg_match("/Video: (.*?), (.*?), (.*?)[,/s]/", $video_info, $matches)){  $ret['vcodec'] = $matches[1];  // 编码格式  $ret['vformat'] = $matches[2]; // 视频格式  $ret['resolution'] = $matches[3]; // 分辨率  list($width, $height) = explode('x', $matches[3]);  $ret['width'] = $width;  $ret['height'] = $height; } // Stream #0:0: Audio: cook (cook / 0x6B6F6F63), 22050 Hz, stereo, fltp, 32 kb/s if(preg_match("/Audio: (.*), (/d*) Hz/", $video_info, $matches)){  $ret['acodec'] = $matches[1];  // 音频编码  $ret['asamplerate'] = $matches[2]; // 音频采样频率 } if(isset($ret['seconds']) && isset($ret['start'])){  $ret['play_time'] = $ret['seconds'] + $ret['start']; // 实际播放时间 } $ret['size'] = filesize($file); // 视频文件大小 $video_info = iconv('gbk','utf8', $video_info); return array($ret, $video_info);}// 输出视频信息$video_info = getVideoInfo('myvideo.avi');print_r($video_info[0]);?>

Array( [duration] => 00:33:42.64 [seconds] => 2022.64 [start] => 0.000000 [bitrate] => 152 [vcodec] => rv20 (RV20 / 0x30325652) [vformat] => yuv420p [resolution] => 352x288 [width] => 352 [height] => 288 [acodec] => cook (cook / 0x6B6F6F63) [asamplerate] => 22050 [play_time] => 2022.64 [size] => 38630744)