[FFmpeg-user] Reduce CPU usage to match VLC

[Loadlinx]

At 120% i am still limited to only ~4 transcoding sessions.
Maybe the quality is not the same and maybe ffmpeg is faster.

I am willing to sacrifice quality for lower CPU usage. Is this possible? I
tried -preset:ultrafast but no difference in CPU usage observed.


On Mon, Feb 10, 2014 at 10:46 AM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Loadlinx <limiteddi <at> gmail.com> writes:
>
> > /vlc -vvv http://192.168.1.50:6002 --sout
> > '#transcode{venc=x264{preset=ultrafast}
>                                ^^^^^^^^^
>
> > ./ffmpeg -i http://192.168.1.50:6002 <http://162.219.0.246:12709>
> > -vcodec libx264 -vb 1500k -s 480x320 -acodec libfdk_aac -ab 32k
> > -f flv rtmp://192.168.1.50:1935/live/709
>
> (Complete, uncut console output missing.)
>
> Aren't these two completely different things?
> Or does libx264 nowadays default to ultrafast?
>
> > Quality seems to me somewhat the same
>
> somewhat: maybe
> the same: most likely not
>
> Carl Eugen
>
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