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FFMpeg.exe Using 100% CPU Suddenly

 Hello. I have been using JMR for some time now, but in the last couple of days I had noticed my CPU fans spinning up when using it. I checked in Task Manager and within the Jaksta Media Recorder program, FFmpeg.exe is using 100% of the CPU. I ended the FFmpeg task and the CPU usage immediately dropped back to normal levels.

Is there a way to stop this from happening?

3 people have this problem

I am having the same problem. On the MFC site, some models use WebRTC. At the end of the stream, FFmpeg loads the processor by 100%. This goes on endlessly.

Sorry for my English.

Happy New Year

2 people like this

Ah, that could be it for me too, I'm also recording some MFC.


Try the option: Settings> Internet Downloads> Advanced> HLS> HLS Mux to> Leave as ROW (Default is MP4)


If you are editing video in a video editor. For example, cut out unnecessary. Choose the output format Mkv or TS. (This is for the WebRTC video stream)



A related issue is that the ffmpeg.exe in the JMR distribution appears to be 32-bit.  I replaced it in the JMR folder with a 64-bit version, and I haven't seen the issue since I did that.  I don't know how helpful, though, since JMR itself is 32-bit (why no 64-bit version available?).

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