[FFmpeg-devel] [PATCH] libavcodec:add dxva2 decoder for h264, mpeg2, vc1.wmv3

highgod0401 highgod0401 at gmail.com
Fri Feb 8 03:43:49 CET 2013

OK, thanks Michael.

Best regards.


From: Michael Niedermayer
Date: 2013-02-08 10:17
To: FFmpeg development discussions and patches
Subject: Re: [FFmpeg-devel] [PATCH] libavcodec:add dxva2 decoder for h264, mpeg2, vc1.wmv3
On Fri, Feb 08, 2013 at 10:07:10AM +0800, Wei Gao wrote:
> Hi,Michael
> Thank you for your reply.
> iam not sure i understand the question, but yes
> chroma_format_idc for h264  is always implicitly or explicitly stored
> in SPS
> for mpeg2 chroma_format is similarly stored in the ext seq header
> I want to make sure that whether the check format code I wrote is enough to
> check the h.264 and mpeg2 format for DXVA2 decode?

No code can check this 100% at init time. It simply can change later
or be missing.
I dont think this should block the patch. Its hard to fix this.

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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