On 6/24/2021 10:30 AM, Alan Kelly wrote:
Hi,
Sorry for the late reply, busy oncall week. Thanks for your responses. I
have looked at the code for cpuflags and what you suggested makes sense. I
just have a question about naming. EXTERNAL_AVX2_FAST is already used in
many places - it checks
Hi,
Sorry for the late reply, busy oncall week. Thanks for your responses. I
have looked at the code for cpuflags and what you suggested makes sense. I
just have a question about naming. EXTERNAL_AVX2_FAST is already used in
many places - it checks whether the flag AV_CPU_FLAG_AVXSLOW is set so I
On 6/14/2021 8:53 AM, Ronald S. Bultje wrote:
Hi Alan,
On Mon, Jun 14, 2021 at 7:20 AM Alan Kelly <
alankelly-at-google@ffmpeg.org> wrote:
Broadwell and later have fast gather instructions.
---
This is so that the avx2 version of ff_hscale8to15X which uses gather
instructions is only
Hi Alan,
On Mon, Jun 14, 2021 at 7:20 AM Alan Kelly <
alankelly-at-google@ffmpeg.org> wrote:
> Broadwell and later have fast gather instructions.
> ---
> This is so that the avx2 version of ff_hscale8to15X which uses gather
> instructions is only selected on machines where it will actually
Alan Kelly:
> Broadwell and later have fast gather instructions.
> ---
> This is so that the avx2 version of ff_hscale8to15X which uses gather
> instructions is only selected on machines where it will actually be
> faster.
> libavutil/cpu.c | 6 ++
> libavutil/cpu.h | 6
Broadwell and later have fast gather instructions.
---
This is so that the avx2 version of ff_hscale8to15X which uses gather
instructions is only selected on machines where it will actually be
faster.
libavutil/cpu.c | 6 ++
libavutil/cpu.h | 6 ++
