[FFmpeg-devel] new open source h.264 source

[John Kelley]

On 2/20/08, Alexander Strange <astrange at ithinksw.com> wrote:
> On Wed, Feb 20, 2008 at 5:15 PM, mark cox
>
> <melbournemark+ffmpeg at gmail.com> wrote:
>  > On Thu, Feb 21, 2008 at 9:04 AM, mark cox
>  >  <melbournemark+ffmpeg at gmail.com> wrote:
>  >  > From phoronix web site http://www.phoronix.com/scan.php?page=news_item&px=NjM0MQ
>  >  >
>  >  >  AMD Opens Up Their Performance Library
>  >  >  Posted by Michael Larabel on February 20, 2008
>  >  >
>  >
>
> >  ~/svn$ svn co https://framewave.svn.sourceforge.net/svnroot/framewave/trunk
>  >  framewave
>  >
>  >  ~/svn/framewave/trunk/Framewave/domain/fwVideo/src$ ls -1
>  >  AANIDCT.cpp
>
>
> This has an SSE2 IDCT (which looks like it was just transcribed from
>  x86-64 asm, so no macros or useful variable names). If it works well
>  with half the xmm registers, it might be nice.
>
>  I don't think AAN is the best IDCT algorithm, though - maybe it would
>  be better to port ppc/idct_altivec.c?
>
>
>  >  fwVideo.cpp
>  >  H264-CAVLC.cpp
>  >  H264-Deblock.cpp
>
>
> I don't think this library is really useful without CABAC, but the
>  SSE2 deblocking might be helpful. The rest probably isn't worth
>  anything.
>
>
>  >  H264-InterPredict.cpp
>  >  H264-IntraPredict.cpp
>  >  H264-MBrecon.cpp
>  >  H264-Transform.cpp
>  >  HuffmanTableInitAlloc.cpp
>  >  InvQuant.cpp
>  >  MC.cpp
>  >  ME.cpp
>  >  ReconstructDCTBlock.cpp
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>

It *might* be worth responding to AMD with some *constructive*
criticisms, they may actually put some manpower into improving it. It
would be worth a shot anyway.

 - John