[FFmpeg-devel] [PATCH] swscale/aarch64/rgb2rgb_neon: Implemented uyvytoyuv422

[Martin Storsjö]

On Tue, 11 Feb 2025, Krzysztof Pyrkosz via ffmpeg-devel wrote:

> I forgot to include the benchmarks in the previous message, here they
> are:
>
> A78:
> uyvytoyuv420_neon:                                    6112.5 ( 6.96x)
> uyvytoyuv422_neon:                                    6696.0 ( 6.32x)
> yuyvtoyuv420_neon:                                    6113.0 ( 6.95x)
> yuyvtoyuv422_neon:                                    6695.2 ( 6.31x)
>
> A72:
> uyvytoyuv420_neon:                                    9512.1 ( 6.09x)
> uyvytoyuv422_neon:                                    9766.8 ( 6.32x)
> yuyvtoyuv420_neon:                                    9639.1 ( 6.00x)
> yuyvtoyuv422_neon:                                    9779.0 ( 6.03x)
>
> A53:
> uyvytoyuv420_neon:                                   12720.1 ( 9.10x)
> uyvytoyuv422_neon:                                   14282.9 ( 6.71x)
> yuyvtoyuv420_neon:                                   12637.4 ( 9.15x)
> yuyvtoyuv422_neon:                                   14127.6 ( 6.77x)
>
> ---
> libswscale/aarch64/rgb2rgb.c      |  16 ++
> libswscale/aarch64/rgb2rgb_neon.S | 262 ++++++++++++++++++++++++++++++
> tests/checkasm/sw_rgb.c           |  63 ++++---
> 3 files changed, 318 insertions(+), 23 deletions(-)

Can you split out the checkasm changes to a separate preceding patch? That 
makes it easier to reason about it, regarding whether the new test 
coverage works for archs with existing asm, etc.

// Martin