[FFmpeg-devel] [PATCH] libavcodec: vp8 neon optimizations for aarch64

Wang Bin wbsecg1 at gmail.com
Fri Feb 15 03:24:56 EET 2019


>
> 2019-02-09 16:46 GMT+01:00, Wang Bin <wbsecg1 at gmail.com>:
> >>
> >> 2019-02-05 0:59 GMT+01:00, James Almer <jamrial at gmail.com>:
> >> > On 1/31/2019 4:23 PM, Carl Eugen Hoyos wrote:
> >> >> 2019-01-31 17:04 GMT+01:00, Magnus Röös <mla2.roos at gmail.com>:
> >> >>> Partial port of the ARM Neon for aarch64.
> >> >>
> >> >> Reproduced a >20% speedup for fate-vp8 and applied.
> >> >>
> >> >> Thank you, Carl Eugen
> >> >
> >> > This seems to have broken builds with Clang on aarch64. GCC seems
> fine.
> >> >
> >> >
> >>
> http://fate.ffmpeg.org/report.cgi?time=20190204212326&slot=armv8-linux-clang-7
> >>
> >> Yes.
> >>
> >> Do you know if Martin plans to push his patch?
> >> I can do it but I cannot test MS.
> >>
> >
> > This breaks android(clang), ios and msvc.
> Please test Martin's patches or "--extra-cflags=-fno-integrated-as",
> see ticket #7728.


The patch in ticket #7728 works for ios and clang-cl, armasm and android
clang w/o -fno-integrated-as are still broken.


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