FFmpeg限制CPU的使用率

1、–threads 2

使用–threads 2 可以将CPU的使用率控制在50%左右。

FFmpeg -i IN  –threads 2   OUT

源文链接：https://stackoverflow.com/questions/11357713/how-to-limit-ffmpeg-cpu-usage

The solution as outlined here

How can I limit FFMpeg CPU usage?

is to limit the number of threads that FFMpeg uses to less than the number of available cores on the computer.

Following up on your comment, you can supply an Argument via StartInfo

Process ffmpeg = new Process();
ffmpeg.StartInfo.UseShellExecute = false;
ffmpeg.StartInfo.FileName = "..\ffmpeg.exe";
ffmpeg.StartInfo.Arguments = "-threads 2";  // <=== Add this line
ffmpeg.StartInfo.CreateNoWindow = true;
ffmpeg.Start();

FFmpeg限制CPU的使用率

原文：http://www.cnblogs.com/yuanloo/p/4366194.html