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How to call ffmpeg in php

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(*-*)浩Original
2019-09-19 13:31:414224browse

上传好视频后,PHP后台自动选取视频流中的某一帧作为视频封面。

How to call ffmpeg in php

FFmpeg是一套可以用来记录、转换数字音频、视频,并能将其转化为流的开源计算机程序,功能很强大。(推荐学习:PHP编程从入门到精通

下载FFmpeg(for Windows):http://ffmpeg.zeranoe.com/builds/  (其他版本可上官网上搜:http://ffmpeg.org/),我下的是shared版的,static版本的下载不下来,下载时一直中断。因此不知道两个版本具体差别。

解压,将bin文件夹下的所有文件包括.exe和.dll都拷贝到C:\Windows\System32中。

在php文件中调用system()或exec()方法来实现帧图像的提取。(注意:在php中路径字符串中‘\’需转义:“\\”)

测试用例:

$name = md5(date('YmdHis')).".png";  
$from = "E:\\UPLOAD\\cw\\20150626\\558d0d11ae285.mp4";  
$to = "E:\\UPLOAD\\cover_images\\";  
$str = "ffmpeg -i ".$from." -y -f mjpeg -ss 3 -t 1 -s 740x500 ".$to.$name;  
system($str);

$name = md5(date('YmdHis')).".png";  
$from = "E:\\UPLOAD\\cw\\20150626\\558d0d11ae285.mp4";  
$to = "E:\\UPLOAD\\cover_images\\";  
$str = "ffmpeg -i ".$from." -y -f mjpeg -ss 3 -t 1 -s 740x500 ".$to.$name;  
exec($str);

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