[FFmpeg-user] ffprobe: Not using full CPU, regardless of "-threads" parameter

Peter B. pb at das-werkstatt.com
Wed Sep 17 17:03:17 CEST 2014

On 09/17/2014 02:18 PM, Carl Eugen Hoyos wrote:
> Peter B. <pb <at> das-werkstatt.com> writes:
>> $ ffprobe_git -f lavfi -i
>> "movie=qctools.avi,signalstats=stat=tout+vrep+brng,
>> cropdetect=reset=1,split[a][b];[a]field=top[a1];
>> [b]field=bottom[b1],[a1][b1]psnr" -show_frames 
>> -show_versions -of xml=x=1:q=1 -noprivate -threads auto
>> -loglevel info > qctools.avi.qctools.xml
>> $ ffmpeg_git -i qctools.avi -an -f framemd5 delme.xxx
> These command lines look very different to me and I 
> would not expect them to have similar CPU usage.

Yes, they are absolutely different use cases. I just brought the
ffmpeg-framemd5 example to illustrate that it's neither the source
file's encoding, nor the disk that might limit ffprobe.


More information about the ffmpeg-user mailing list