[FFmpeg-devel] dealing with tables in DV codec
Thu Sep 11 19:57:25 CEST 2008
Michael Niedermayer wrote:
> On Wed, Sep 10, 2008 at 07:27:13PM -0700, Roman V. Shaposhnik wrote:
>> On Wed, 2008-09-10 at 23:06 +0200, Michael Niedermayer wrote:
>>> on samples.mplayerhq.hu is a good one to test idcts.
>> Do you mean just comparing PSNRs or a more involved test?
> i meant ffplay -idct 6 file.avi
> and looking at it
> for comarission you can look at
> -idct 2 (no artifacts)
> -idct 1 (minor atifacts)
> -idct 4 (major artifacts)
And just for info the benchmark that were done when the patch was
commited : http://article.gmane.org/gmane.comp.video.ffmpeg.devel/55962
It show the idct is a bit slower that mlib (3%), but more accurate.
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