[FFmpeg-devel] dealing with tables in DV codec
Sat Sep 13 14:45:23 CEST 2008
"Roman V. Shaposhnik" <rvs at sun.com> writes:
> On Thu, 2008-09-11 at 19:57 +0200, matthieu castet wrote:
>> 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:
>> >>> Divx4-bugs/Lorenna_McKennit-Mummers_Dance-Mononoke_Hime-gabucino.avi
>> >>> 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.
> I see that there are numbers from dct-test, but it seems to me
> that it doesn't hook to mlib by default. Am I missing something,
> or should I just manually hook it up?
Feel free to add the missing line for mlib.
mans at mansr.com
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