[FFmpeg-devel] [PATCH] avfilter: add hflip x86 SIMD

[Paul B Mahol]

On 12/3/17, Paul B Mahol <onemda at gmail.com> wrote:
> On 12/3/17, Paul B Mahol <onemda at gmail.com> wrote:
>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>> ---
>>  libavfilter/hflip.h             |  38 ++++++++++++
>>  libavfilter/vf_hflip.c          | 133
>> ++++++++++++++++++++++++++--------------
>>  libavfilter/x86/Makefile        |   2 +
>>  libavfilter/x86/vf_hflip.asm    |  98 +++++++++++++++++++++++++++++
>>  libavfilter/x86/vf_hflip_init.c |  41 +++++++++++++
>>  5 files changed, 265 insertions(+), 47 deletions(-)
>>  create mode 100644 libavfilter/hflip.h
>>  create mode 100644 libavfilter/x86/vf_hflip.asm
>>  create mode 100644 libavfilter/x86/vf_hflip_init.c
>>
>
> This is overall ~50% faster than pure C that gcc 6.3.0 gives with
> vanilla options.
>

By overall I mean this simple bench test:

ffmpeg -f lavfi -i smptehdbars=hd1080 -vf hflip=threads=1 -f null -