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

[Paul B Mahol]

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.