問題描述

我已經(jīng)在 Centos 6 機(jī)器的根目錄上成功安裝了 FFMpeg (https://trac.ffmpeg.org/wiki/CompilationGuide/Centos).

I have installed successfully installed FFMpeg on root of my Centos 6 machine (https://trac.ffmpeg.org/wiki/CompilationGuide/Centos).

我的 apache/php 工作場(chǎng)所是/var/www/html

My workplace of apache/php is /var/www/html

現(xiàn)在我在/var/www/html 目錄上成功運(yùn)行以下命令以從視頻文件中捕獲幀.它正在捕獲一幀.

Now I'm running below command successfully on /var/www/html directory to capture frame from the video file. It's capturing a frame.

[root@localhost html]# ffmpeg -i video.mpg -an -ss 30  -t 00:00:01 -r 1 -y -vcodec mjpeg -f mjpeg -s 160x100 frame8  2>&1

我想通過 php 并使用 shell_exec() 或 exec() php 函數(shù)運(yùn)行此命令.我用于運(yùn)行命令的 php 代碼是:

I want to run this command through php and using shell_exec() or exec() php functions. My php code for running the command is:

$cmd = "/root/bin/ffmpeg -i /project/app/webroot/videos/video.mpg -ss 00:00:14.435 -f image2 -vframes 1 /project/app/webroot/videothumbnails/example-thumb.jpg";
$locale = 'en_IN.UTF-8';
setlocale(LC_ALL, $locale);
putenv('LC_ALL='.$locale);
echo shell_exec($cmd);

當(dāng)我嘗試通過上面的 php 代碼運(yùn)行命令時(shí)，出現(xiàn)以下錯(cuò)誤:

When I'm trying to run command through above php code, I'm getting below error:

sh: ffmpeg: command not found

請(qǐng)幫我解決這個(gè)問題.

推薦答案

對(duì)于視頻縮略圖的創(chuàng)建，我們使用 ffmpeg.

For Video Thumbnail creation we use ffmpeg.

在Linux系統(tǒng)(centos 6.x)下Ffmpeg安裝過程和Php例子:-

In Linux Systems(centos 6.x) Ffmpeg installation process and Php example:-

這個(gè)過程是在我的 centos 6 中完成的，并使用 php 創(chuàng)建了縮略圖.

This process is done in my centos 6 and created thumbnails using php.

步驟 1:-請(qǐng)檢查您的 linux 服務(wù)器中是否有任何現(xiàn)有的 ffmpeg 可用.如果可用，請(qǐng)刪除該文件.

Step1:- Please check If any existing ffmpeg available or not in your linux server .If available please remove that files.

第 2 步:-對(duì)于新的 ffmpeg 安裝，請(qǐng)點(diǎn)擊此鏈接
http://root.uabid.com/compile-ffmpeg-on-centos-6-x/ .

Step2:- For New ffmpeg installation follow this link
http://root.uabid.com/compile-ffmpeg-on-centos-6-x/ .

Step3:- 安裝完成后檢查您的 ffmpeg 安裝在哪里.

Step3:- After installation complete check whereis your ffmpeg installed.

命令:whereis ffmpeg

Command: whereis ffmpeg

在 linux 命令行中鍵入此命令并檢查.例如，您的 ffmpeg 路徑在 (/usr/local/bin/ffmpeg) 中.在您的代碼中使用此路徑.

type this command in linux command line and check.If for example your ffmpeg path in (/usr/local/bin/ffmpeg). Use this path in your code.

PHP 示例:-

<?php

    if($extension === 'mp4' OR $extension == 'MP4' )
    {
    $video = $timestamp.$imagename;
    $videoname=substr($imagename,0, -4).$timestamp;
    $image = "sites/default/files/content_images/{$videoname}-thumb.jpg";

    var_dump($video);

    $cmd = "/usr/local/bin/ffmpeg -i    /opt/lampp/htdocs/myproject/sites/default/files/content_videos/".$video." -ss   00:00:01.435 -f image2 -vframes 1       /opt/lampp/htdocs/myproject/sites/default/files/content_images/".$videoname."-  thumb.jpg";

    $cmdstr = $cmd;
    $locale = 'en_IN.UTF-8';
    setlocale(LC_ALL, $locale);
    putenv('LC_ALL='.$locale);
    echo exec($cmd);
?>

流程 2:-這是用于靜態(tài)文件路徑:

Process 2:- This is for static file paths:

<?php    
    $cmd = "/root/bin/ffmpeg -i /var/www/html/project/app/webroot/videos/example.mp4 -ss   00:00:01.435 -f image2 -vframes 1 /var/www/html/project/app/webroot/videothumbnails/example-thumb.jpg";
    $cmdstr = $cmd;
    $locale = 'en_IN.UTF-8';
    setlocale(LC_ALL, $locale);
    putenv('LC_ALL='.$locale);
    echo exec($cmd);
?>

希望這對(duì)你有幫助 &其他..

Hope this helps to you & others..

這篇關(guān)于sh:ffmpeg:通過php運(yùn)行命令時(shí)找不到命令的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！