php如何控制视频播放时长
1、代码如下：PHP<?php define('FFMPEG_PATH', '/usr/local/ffmpeg2/bin/ffmpeg -i "%s" 2>&1'); function getVideoInfo($file) { $command = sprintf(FFMPEG_PATH, $file); ob_start(); passthru($command); $info = ob_get_contents(); ob_end_clean(); $data = array(); if (preg_match("/Duration: (.*?), start: (.*?), bitrate: (\d*) kb\/s/", $info, $match)) { $data['duration'] = $match[1]; //播放时间 $arr_duration = explode(':', $match[1]); $data['seconds'] = $arr_duration[0] * 3600 + $arr_duration[1] * 60 + $arr_duration[2]; //转换播放时间为秒数 $data['start'] = $match[2]; //开始时间 $data['bitrate'] = $match[3]; //码率(kb) } if (preg_match("/Video: (.*?), (.*?), (.*?)[,\s]/", $info, $match)) { $data['vcodec'] = $match[1]; //视频编码格式 $data['vformat'] = $match[2]; //视频格式 $data['resolution'] = $match[3]; //视频分辨率 $arr_resolution = explode('x', $match[3]); $data['width'] = $arr_resolution[0]; $data['height'] = $arr_resolution[1]; } if (preg_match("/Audio: (\w*), (\d*) Hz/", $info, $match)) { $data['acodec'] = $match[1]; //音频编码 $data['asamplerate'] = $match[2]; //音频采样频率 } if (isset($data['seconds']) && isset($data['start'])) { $data['play_time'] = $data['seconds'] + $data['start']; //实际播放时间 } $data['size'] = filesize($file); //文件大小 return $data; } //用法 $video_info = getVideoInfo('video.mp4'); print_r($video_info); ?>
2、FFmpeg获得视频文件的缩略图：function getVideoCover($file,$time,$name) {if(empty($time))$time = '1';//默认截取第一秒第一帧$strlen = strlen($file);// $videoCover = substr($file,0,$strlen-4);// $videoCoverName = $videoCover.'.jpg';//缩略图命名//exec("ffmpeg -i ".$file." -y -f mjpeg -ss ".$time." -t 0.001 -s 320x240 ".$name."",$out,$status);$str = "ffmpeg -i ".$file." -y -f mjpeg -ss 3 -t ".$time." -s 320x240 ".$name;//echo $str."</br>";$result = system($str);
3、Fmpeg读取视频播放时长和码率、<?phpdefine('FFMPEG_PATH', &#泌驾台佐39;/usr/local/ffmpeg2/bin/ffmpeg -i "%s" 2>&1');function getVideoInfo($file) {$command = sprintf(FFMPEG_PATH, $file);ob_start();passthru($command);$info = ob_get_contents();ob_end_clean();$data = array();if (preg_match("/Duration: (.*?), start: (.*?), bitrate: (\d*) kb\/s/", $info, $match)) {$data['duration'] = $match[1]; //播放时间$arr_duration = explode(':', $match[1]);$data['seconds'] = $arr_duration[0] * 3600 + $arr_duration[1] * 60 + $arr_duration[2]; //转换播放时间为秒数$data['start'] = $match[2]; //开始时间$data['bitrate'] = $match[3]; //码率(kb)}if (preg_match("/Video: (.*?), (.*?), (.*?)[,\s]/", $info, $match)) {$data['vcodec'] = $match[1]; //视频编码格式$data['vformat'] = $match[2]; //视频格式$data['resolution'] = $match[3]; //视频分辨率$arr_resolution = explode('x', $match[3]);$data['width'] = $arr_resolution[0];$data['height'] = $arr_resolution[1];}if (preg_match("/Audio: (\w*), (\d*) Hz/", $info, $match)) {$data['acodec'] = $match[1]; //音频编码$data['asamplerate'] = $match[2]; //音频采样频率}if (isset($data['seconds']) && isset($data['start'])) {$data['play_time'] = $data['seconds'] + $data['start']; //实际播放时间}$data['size'] = filesize($file); //文件大小return $data;}//用法$video_info = getVideoInfo('video.mp4');print_r($video_info);?>
4、Fmpeg获得视频文件的总长度时间和创建时间function getTime($file){$vtime = exec("ffmpeg -i ".$file." 2>&1 | grep 'Duration' | cut -d ' ' -f 4 | sed s/,//");//总长度$ctime = date("Y-m-d H:i:s",filectime($file));//创建时间//$duration = explode(":",$time);// $duration_in_seconds = $duration[0]*3600 + $duration[1]*60+ round($duration[2]);//转化为秒return array('vtime'=>$vtime,'ctime'=>$ctime);}
5、以上就是本文的全部内容，希望对大家的学习有所帮助，