What the ...? I can't read the entire message in http://lists.mplayerhq.hu/pipermail/ffmpeg-soc/2009-July/date.html
And I screwed up the subject. On Wed, Jul 22, 2009 at 1:58 AM, Ramiro Polla<[email protected]> wrote: > Hi, > > In swscale.c, there are some lines that adjust {lum,chr}XInc depending > on MMX or MMX2 being used for fast bilinear. They were added (still > with the old name of s_xinc) in this commit: > http://git.ffmpeg.org/?p=libswscale;a=commitdiff;h=87d2542e33c80731dab64339aebcaebbaa25911e > > Where do the magical "20" values come from? > > From what I understood and from some tests I've done, this creates > some rather ugly last lines at the far right of the image. The output > also differs for C, mmx, and mmx2, and it's not under BITEXACT. > > To remove this adjustment and have the same output for all > configurations, wouldn't it only be necessary to: > - adjust mmx and mmx2 filters to only work up to the last input pixels > it can before reading past the end. > - run the C code on the last pixels if necessary. > > This should also remove some +1s being allocated because of the MMX > filter, and the limit that the MMX2 filter can only work with srcW&31. > > Ramiro Polla > _______________________________________________ FFmpeg-soc mailing list [email protected] https://lists.mplayerhq.hu/mailman/listinfo/ffmpeg-soc
