On Wed, 24 Apr 2019 14:02:16 +0300 Lauri Kasanen <c...@gmx.com> wrote:
> ./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags > fast_bilinear \ > -s 2400x720 -f rawvideo -vframes 5 -pix_fmt abgr -nostats test.raw > > 4.27 speedup for hyscale_fast: > 24796 UNITS in hyscale_fast, 4096 runs, 0 skips > 5797 UNITS in hyscale_fast, 4096 runs, 0 skips > > 4.48 speedup for hcscale_fast: > 19911 UNITS in hcscale_fast, 4095 runs, 1 skips > 4437 UNITS in hcscale_fast, 4096 runs, 0 skips > > Signed-off-by: Lauri Kasanen <c...@gmx.com> > --- > libswscale/ppc/swscale_vsx.c | 196 > +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 196 insertions(+) > > This has the same limit as the x86 version, same width or larger only. > Shrinking would require a gather load, which doesn't exist on PPC and is slow > even on x86 AVX. I tried a manual gather load, and the vector function was 20% > slower than C. Applying. - Lauri _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
