[FFmpeg-devel] [RFC] An improved implementation of ARMv5TE IDCT (simple_idct_armv5te.S)
Wed Sep 12 13:50:03 CEST 2007
On Wed, Sep 12, 2007 at 11:31:02AM +0300, Siarhei Siamashka wrote:
> Hello all,
> I have been working on improving IDCT performance for ARM for some time
> already and now think that it is more or less ready (performance wise) to
> get accepted upstream:
> So now the question is: how it would be best to integrate this idct code
> into ffmpeg? Should it replace the current simple_idct_armv5te.S file?
yes if its always faster
> Could you please review the copyright part to check if it is ok?
is there anything special on it? it looks like normal LGPL
> I can provide a patch with omitted experimental prefetch code, all the globals
> getting 'ff_' prefix, use of 'ff_cropTbl' instead of keeping its own copy of
> cropping table
> (by the way, it would be nice to extend MAX_NEX_CROP to 2048
> as idct can produce results in +-2K range when feeded with completely random
> data on input).
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
There will always be a question for which you do not know the correct awnser.
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