[FFmpeg-user] Reduce CPU usage to match VLC

Reindl Harald h.reindl at thelounge.net
Mon Feb 10 16:40:05 CET 2014

Am 10.02.2014 16:36, schrieb Loadlinx:
> Hello,
> Would like to use ffmpeg instead of VLC for the given task but I can not
> seem to reduce the CPU usage.
> Here is how I do it in VLC:(~30% CPU usage)
> /vlc -vvv --sout '#transcode{venc=x264{preset=
> ultrafast},vcodec=h264,vb=1500,acodec=aac,ab=128,samplerate=48000}:standard{access=http,mux=ts,dst=
> Here is my ffmpeg command: (~120% CPU usage)
> ./ffmpeg -i <> -vcodec
> libx264 -vb 1500k -s 480x320 -acodec libfdk_aac -ab 32k -f flv rtmp://
> <>
> Quality seems to me somewhat the same but ffmpeg uses 3x more CPU then VLC.
> Any idea how I can match VLC cpu usage with ffmpeg?

wrong question

maybe it is also 3 times faster
CPU and hardware in general is there to get used
why would you buy a expensive CPU to let it idle?

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