[FFmpeg-user] ffmpeg performance 3.3 vs. 3.2.4

Moritz Barsnick barsnick at gmx.net
Wed May 17 12:34:38 EEST 2017


On Wed, May 17, 2017 at 08:31:22 +0200, Paul B Mahol wrote:

> You are using different version of hevc encoders.

Good catch.

Furthermore, I see only minimal differences in these 68 frames:

> > ffmpeg version 3.2.4-static http://johnvansickle.com/ffmpeg/  Copyright
> > (c) 2000-2017 the FFmpeg developers
[...]
> > frame=   68 fps=9.4 q=-0.0 size=       3kB time=00:00:00.80 bitrate=
> > 27.0kbits/s speed=0.112x

vs.

> > ffmpeg version 3.3-static http://johnvansickle.com/ffmpeg/  Copyright
> > (c) 2000-2017 the FFmpeg developers
[...]
> > frame=   68 fps= 11 q=-0.0 size=       3kB time=00:00:00.80 bitrate=
> > 27.7kbits/s speed=0.129x

which is a "significant" difference, but not diverging by the factor of
2.4x which was named initially.

Moritz


More information about the ffmpeg-user mailing list