[FFmpeg-devel] [PATCH] Fix VC-1 playback with pulldown content

[Michael Niedermayer]

On Mon, Apr 04, 2011 at 03:08:50PM +0200, Alexandre Colucci wrote:
> Hi,
> 
> The attached patch fixes the jerky playback of VC-1 content with pulldown. The pulldown flags were incorrectly set. They must be correct in order to display the frames with the correct timing as mentioned in the specifications: "SMPTE 421M: VC-1 Compressed Video Bitstream Format and Decoding Process". More precisely the following tables:
> 
> Table 20: Progressive P picture layer bitstream for Advanced Profile
> Table 22: Progressive B picture layer bitstream for Advanced Profile
> Table 23: Progressive Skipped picture layer bitstream for Advanced Profile
> Table 82: Interlaced Frame I and BI picture layer bitstream for Advanced Profile
> Table 83: Interlaced Frame P picture layer bitstream for Advanced Profile
> Table 84: Interlaced Frame B picture layer bitstream for Advanced Profile
> Table 85: Picture Layer bitstream for Field 1 of Interlace Field Picture for Advanced Profile
>


> Note: I can provide a 10MB sample file if requested.

carl might want it to test

patch applied though, it looks correct

[...]

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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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