[FFmpeg-devel] libavcodec/qsvdec_h264.c: SPS parsing now performs by MFXVideoDECODE_DecodeHeader() into libavcodec/qsvdec.c

[Michael Niedermayer]

On Thu, Jul 16, 2015 at 11:02:22PM +0300, Ivan Uskov wrote:
> Hello All,
> 
> Current implementation of libavcodec/qsvdec_h264.c does use external
> SPS parser. It does not optimal since MFX library has own unified way
> to parse headers of all supported formats. This performs by one
> MFXVideoDECODE_DecodeHeader() call.
> The suggested patch does replace stream specific code to one universal
> function call located into the libavcodec/qsvdec.c. This opens an easy
> way to implement qsv-accelerated mpeg2, hevc and vc1 decoders.
> Please review.
> 
> -- 
> Best regards,
>  Ivan                          mailto:ivan.uskov at nablet.com

>  qsvdec.c      |   68 ++++++++++++++++++++++++++++-----------------
>  qsvdec.h      |    2 -
>  qsvdec_h264.c |   87 ++--------------------------------------------------------
>  3 files changed, 48 insertions(+), 109 deletions(-)
> f54e2ef059f3878b7e16f51e910dccdbf1335bbb  0001-libavcodec-qsvdec_h264.c-SPS-parsing-now-performs-by.patch
> From 0e84c3e90849b2b59fd361c09c7684374b6229d3 Mon Sep 17 00:00:00 2001
> From: Ivan Uskov <ivan.uskov at nablet.com>
> Date: Wed, 15 Jul 2015 08:34:51 -0400
> Subject: [PATCH] libavcodec/qsvdec_h264.c: SPS parsing now performs by
>  MFXVideoDECODE_DecodeHeader() into libavcodec/qsvdec.c

i dont know the qsv parser code but like hendrik suggested, it
is quite possible that our parser supports more cases.

did you test .mp4  and annex b (.h264) ? do both work ?

[...]


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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Into a blind darkness they enter who follow after the Ignorance,
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