[FFmpeg-devel] FFmpeg 0.7.5 is very much slower than FFmpeg 0.7 for decoding

Michael Niedermayer michaelni at gmx.at
Sun Oct 2 08:50:20 CEST 2011


On Sat, Oct 01, 2011 at 09:22:27PM -0700, Unga wrote:
> Hi all
> 
> The FFmpeg 0.7.5 is very much slower than FFmpeg 0.7 for decoding. 
> 
> I'm playing 720p and 1080p vp8 and h.264 videos.
> 
> With FFmpeg 0.7, 720p averages CPU usage to 20%. With FFmpeg 0.7.5, it shoot up to 100%!
> 
> With FFmpeg 0.7, 1080p averages CPU usage to 70%. With FFmpeg 0.7.5, it shoot up to 105%!
> 
> Any ideas? I can try and let know if there are improvements.

we need a reproduceable bug report
1. what are you doing, what tool, what commandline what output, ..
2. how do you meassure the difference

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I do not agree with what you have to say, but I'll defend to the death your
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