php+ffmpeg如何获取视频缩略图、视频分辨率等相关信息

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前言

ffmpeg是一款开源、跨平台的视频处理程序，可用在Windows、mac、linux等平台，可以方便的运用多种语言脚本来调用其执行视频的操作。

下面介绍使用ffmpeg获取视频首帧的方法。

<?php//待处理视频$in_file = 'http://cdn.finte*c*h*uni.cn/video/2019/12/25/222834_f93690f37496456a9674763d69bcd9c0.mp4';//缩略图保存路径$out_file ='./test.jpg'; //shell脚本$shell = "ffmpeg -i $in_file -y -fimage2-ss 00:00:01 -vframes 1$out_file 2>&1"; //调用php的exec方法去执行脚本exec($shell, $output, $return_val); //获取输出信息print_r($output);

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); //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; $result = system($str); }

Fmpeg读取视频信息

<?phpdefine('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);?>

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 );}

另外一种方法

ffprobe -v quiet -print_format json -show_format -show_streams test.mp4

结果

{"streams": [{"index": 0,"codec_name": "h264","codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10","profile": "High","codec_type": "video","codec_time_base": "1/1200","codec_tag_string": "avc1","codec_tag": "0x31637661","width": 538,"height": 888,"coded_width": 544,"coded_height": 896,"has_b_frames": 0,"sample_aspect_ratio": "0:1","display_aspect_ratio": "0:1","pix_fmt": "yuv420p","level": 31,"color_range": "tv","color_space": "bt709","color_transfer": "bt709","color_primaries": "bt709","chroma_location": "left","refs": 2,"is_avc": "1","nal_length_size": "4","r_frame_rate": "30/1","avg_frame_rate": "30/1","time_base": "1/600","start_pts": 0,"start_time": "0.000000","duration_ts": 6040,"duration": "10.066667","bit_rate": "1022789","bits_per_raw_sample": "8","nb_frames": "302","disposition": {"default": 1,"dub": 0,"original": 0,"comment": 0,"lyrics": 0,"karaoke": 0,"forced": 0,"hearing_impaired": 0,"visual_impaired": 0,"clean_effects": 0,"attached_pic": 0},"tags": {"creation_time": "2020-01-01 15:59:27","language": "und","handler_name": "Core Media Video"}},{"index": 1,"codec_name": "aac","codec_long_name": "AAC (Advanced Audio Coding)","profile": "LC","codec_type": "audio","codec_time_base": "1/44100","codec_tag_string": "mp4a","codec_tag": "0x6134706d","sample_fmt": "fltp","sample_rate": "44100","channels": 1,"channel_layout": "mono","bits_per_sample": 0,"r_frame_rate": "0/0","avg_frame_rate": "0/0","time_base": "1/44100","start_pts": -2112,"start_time": "-0.047891","duration_ts": 442368,"duration": "10.031020","bit_rate": "45569","max_bit_rate": "48000","nb_frames": "432","disposition": {"default": 1,"dub": 0,"original": 0,"comment": 0,"lyrics": 0,"karaoke": 0,"forced": 0,"hearing_impaired": 0,"visual_impaired": 0,"clean_effects": 0,"attached_pic": 0},"tags": {"creation_time": "2020-01-01 15:59:27","language": "und","handler_name": "Core Media Audio"}}],"format": {"filename": "test.mp4","nb_streams": 2,"nb_programs": 0,"format_name": "mov,mp4,m4a,3gp,3g2,mj2","format_long_name": "QuickTime / MOV","start_time": "-0.047891","duration": "10.066667","size": "1351439","bit_rate": "1073991","probe_score": 100,"tags": {"major_brand": "mp42","minor_version": "1","compatible_brands": "isommp41mp42","creation_time": "2020-01-01 15:59:27"}}}

总结

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