[Ffmpeg-devel] [RFC] VC-1 I-frames decoder

Derk-Jan Hartman d.hartman
Wed Jun 21 01:54:14 CEST 2006

>>>> On Sat, Jun 17, 2006 at 07:43:18AM +0300, Kostya wrote:
>>>>> Here is my VC-1 decoder which decodes I-frames only. And not  
>>>>> all of
>>>>> them are decoded properly too.
>>>>> Nevertheless I want to get opinions on this implementation before
>>>>> moving to P-frames support.
>>>>> P.S. If somebody will find and fix bugs in AC prediction it  
>>>>> would be
>>>>> incredibly great.
>>>> And this one for testing: it outputs color and frames are now  
>>>> decoded
>>>> correctly. Please test and report samples with distorted  
>>>> pictures (if
>>>> some movie doesn't play at all it's fine).
>>> Hey, I can see I-frames in WMV3 on amd64. Cool! ;)
>>> Though I'm getting some colour artifacts in a sample video.
>>> See mphq:incoming/wmv3-color-artifacts/
>> I have another sample with color artifacts, theweekend.wmv, I put  
>> it in
>> that folder.

> If you meant those pinky frames it should be fixed now (for high  
> quantized frames
> overlap filtering is used and it was not implemented in old code).
> New version attached.
> <vc1.patch.gz>

Seems to work for I-frames on my G5 with OSX 10.4 in VLC. Nice work!!!


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