[FFmpeg-user] libvpx-vp9 not using all 4 real cores (no HT CPU) like libx264 does (in top: ~250% vs ~387%)

Moritz Barsnick barsnick at gmx.net
Thu Nov 26 16:59:25 CET 2015

On Thu, Nov 26, 2015 at 15:14:16 +0100, D wrote:
> It seems that --cpu-used is a bit similar to the -crf option. And

ffmpeg's "-crf" maps to vpxenc's "--cq-level=" and, in your use case,

ffmpeg's "-cpu-used" maps to vpxenc's "--cpu-used".

I think "-threads" maps directly.

How do I know? I checked the source. ;-) If you use "-loglevel debug"
to ffmpeg, the libvpx encoder will also dump quite a lot of information
about the configuration it is using!

Just to make sure you have comparable options...


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