ffmpeg后台进程完成后如何管道新命令？

Question

This is my ffmpeg process:

exec("/usr/local/bin/ffmpeg -y -i source.avi dest.mp4 >/dev/null 2>/dev/null &

Now, I wish to execute a PHP file after the conversion is complete. Logically, this is what I have:

exec("/usr/local/bin/ffmpeg -y -i source.avi dest.mp4 >/dev/null 2>/dev/null ; php proceed.php &

This doesn't work though, since then PHP will hold up the process to wait till the ffmpeg conversion is complete. What I want is basically to call proceed.php after the conversion completes, both of which are done in the background.

If anyone can provide the Windows server solution, that will be awesome too.

Answer 1

Write an external (bash/php) script that executes both the ffmpeg and php process, and tack & after that.

For windows, please open a new question on SO.