[Ffmpeg-devel] VC-1 stream handling

Baptiste Coudurier baptiste.coudurier
Mon Jan 15 18:03:35 CET 2007


Ian Caulfield wrote:
> Hi,
> I've been working on adapting FFmpeg to handle VC-1 elementary streams, as
> well as muxing/demuxing VC-1 in MPEG-PS. I've written the PS
> muxing/demuxing
> code, but currently I'm having a problem getting the vc1 codec to handle
> it,
> as currently the vc1 codec is set up to work with WVC1 streams in ASF,
> which
> have the picture startcodes stripped and the sequence header stored in
> extradata. I'm just wondering what the best way to handle this would be.
> - The VC-1 decoder code could be modified to handle a VC-1 bitstream as
> well
> as the current stripped format from ASF, but it wouldn't be possible to do
> MPEG<->WMV remuxing of VC-1 streams

For info, vc-1 in mp4/3gp use also another format of extradata.


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