[Ffmpeg-devel] libavcodec + IPP

Ismail Donmez ismail
Tue Nov 8 13:58:33 CET 2005

On Tuesday 08 November 2005 14:45, Bj?rn Ard? wrote:
> Hi,
> We have done some performance tests with libavcodec on an intel pentium 4
> CPU uncompressing a mpeg 2 video stream.
> We noticed that we could replace the idct algoritm with the corresponding
> IPP function. This increased the performance by about 10% compared to the
> MMX2 version in libavcodec (FF_IDCT_LIBMPEG2MMX). It seems that libavcodec
> is already prepared to use IPP functions but that it is not implemented yet
> (apart from the arm4l architecture).

IPP is not LGPL compatible, is it?


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