[FFmpeg-devel] [PATCH] Fix PSX MDEC decoder

[Vitor Sessak]

Hi,

I saw in a blog post [1] that FFmpeg decodes Playstation 1 video files 
with artifacts. It is indeed true, due to a wrong pixfmt (YUV/YUVJ) and 
not imposing using DCT_SIMPLE, as is done in MPEG1. The attached patch 
fixes it.

For reference, I'm attaching a decoded frame with:

1- Current SVN with -idct mmx
2- Current SVN with -idct simple
3- Patched SVN
4- Reference decoder output (i.e., PS1 image grab)

-Vitor

[1] 
http://jpsxdec.blogspot.com/2010/09/psx-video-decoders-final-showdown.html

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