[FFmpeg-devel] VC-1 Interlaced Hardware decoding

[compn]

On Sun, 18 Nov 2012 13:27:22 +0100, Hendrik Leppkes wrote:
>On Sun, Nov 18, 2012 at 12:06 PM, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:
>> Jeroen de Kleijn <jeroen.de.kleijn <at> gmail.com> writes:
>>
>>> However, while testing with the VC-1 1080i BBC planet earth
>>> sources I still see blocking artifacts occasionally. These
>>> were already showing before I merged the patches and thus
>>> seem unrelated to the B-frame code-path missing. I was
>>> wondering if you can test the sample mentioned below with
>>> your build using DXVA2 acceleration to see if the artifacts
>>> also show up?
>>
>> The artefacts can also be seen with mplayer -vc ffvc1vdpau and
>> correspond to artefacts visible with software (lavc) -decoding
>> so I would assume they are not XVBA-usage-related.
>>
>> Carl Eugen
>
>
>Except, there are no artifacts with DXVA2 using avcodec, or Microsofts
>DMO decoder.
>The software avcodec decoder really can't be trusted with interlaced
>material as any serious reference.
>
>It appears i previously only answered Jeroen directly instead of
>replying to the list, but the sample plays perfectly with DXVA2 in
>avcodec on Windows.

to narrow down the bug, i think someone has to compile lavc by
disabling cpu optimizations. assuming the C version works properly.

what ver gcc are you using on linux vs windows ?
is it the same cpu and 32bit/64bit linux/windows?

-compn