Tried applying the diff from patchwork 
(https://patchwork.ffmpeg.org/project/ffmpeg/patch/pn3p287mb3339e53168f261f6cccf13b79a...@pn3p287mb3339.indp287.prod.outlook.com/raw/),
 it applies fine on master.
The mbox patch 
(https://patchwork.ffmpeg.org/project/ffmpeg/patch/pn3p287mb3339e53168f261f6cccf13b79a...@pn3p287mb3339.indp287.prod.outlook.com/mbox/)
 thou fails to apply saying "empty patch". I had to delete lines 1-199 manually 
and then it applied.
Thanks,
Logaprakash.
________________________________
From: ffmpeg-devel <ffmpeg-devel-boun...@ffmpeg.org> on behalf of Michael 
Niedermayer <mich...@niedermayer.cc>
Sent: Friday, July 18, 2025 4:29 PM
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH v2 1/1] swscale/aarch64/output: Implement 
neon assembly for yuv2planeX_10_c_template()

On Tue, Jul 15, 2025 at 05:06:54AM +0000, Logaprakash Ramajayam wrote:
> Handled all the comments and attaching the checkasm results.
>
> Checkasm Benchmark results:
>
>
> yuv2yuvX_10_LE_16_0_512_accurate_c:                   7836.9 ( 1.00x)
> yuv2yuvX_10_LE_16_0_512_accurate_neon:                 840.4 ( 9.33x)
> yuv2yuvX_10_LE_16_0_512_approximate_c:                7930.8 ( 1.00x)
> yuv2yuvX_10_LE_16_0_512_approximate_neon:              838.5 ( 9.46x)
> yuv2yuvX_10_LE_16_16_512_accurate_c:                  7594.3 ( 1.00x)
> yuv2yuvX_10_LE_16_16_512_accurate_neon:                815.2 ( 9.32x)
> yuv2yuvX_10_LE_16_16_512_approximate_c:               7687.0 ( 1.00x)
> yuv2yuvX_10_LE_16_16_512_approximate_neon:             811.9 ( 9.47x)
> yuv2yuvX_10_LE_16_32_512_accurate_c:                  7366.4 ( 1.00x)
> yuv2yuvX_10_LE_16_32_512_accurate_neon:                785.8 ( 9.37x)
> yuv2yuvX_10_LE_16_32_512_approximate_c:               7426.5 ( 1.00x)
> yuv2yuvX_10_LE_16_32_512_approximate_neon:             786.4 ( 9.44x)
> yuv2yuvX_10_LE_16_48_512_accurate_c:                  7123.1 ( 1.00x)
> yuv2yuvX_10_LE_16_48_512_accurate_neon:                761.7 ( 9.35x)
> yuv2yuvX_10_LE_16_48_512_approximate_c:               7182.7 ( 1.00x)
> yuv2yuvX_10_LE_16_48_512_approximate_neon:             763.0 ( 9.41x)
> yuv2yuvX_10_BE_16_0_512_accurate_c:                   8092.6 ( 1.00x)
> yuv2yuvX_10_BE_16_0_512_accurate_neon:                 860.2 ( 9.41x)
> yuv2yuvX_10_BE_16_0_512_approximate_c:                8183.5 ( 1.00x)
> yuv2yuvX_10_BE_16_0_512_approximate_neon:              861.4 ( 9.50x)
> yuv2yuvX_10_BE_16_16_512_accurate_c:                  7837.4 ( 1.00x)
> yuv2yuvX_10_BE_16_16_512_accurate_neon:                834.0 ( 9.40x)
> yuv2yuvX_10_BE_16_16_512_approximate_c:               7927.9 ( 1.00x)
> yuv2yuvX_10_BE_16_16_512_approximate_neon:             834.6 ( 9.50x)
> yuv2yuvX_10_BE_16_32_512_accurate_c:                  7605.1 ( 1.00x)
> yuv2yuvX_10_BE_16_32_512_accurate_neon:                807.5 ( 9.42x)
> yuv2yuvX_10_BE_16_32_512_approximate_c:               7691.4 ( 1.00x)
> yuv2yuvX_10_BE_16_32_512_approximate_neon:             807.3 ( 9.53x)
> yuv2yuvX_10_BE_16_48_512_accurate_c:                  7344.3 ( 1.00x)
> yuv2yuvX_10_BE_16_48_512_accurate_neon:                782.7 ( 9.38x)
> yuv2yuvX_10_BE_16_48_512_approximate_c:               7440.1 ( 1.00x)
> yuv2yuvX_10_BE_16_48_512_approximate_neon:             781.9 ( 9.51x)
>
> From 3e14b4c2e763d2d0c8979e3e99578f5492b7130c Mon Sep 17 00:00:00 2001
> From: Logaprakash Ramajayam <logaprakash.ramaja...@multicorewareinc.com>
> Date: Tue, 1 Jul 2025 23:48:36 -0700
> Subject: [PATCH v2 1/1] swscale/aarch64/output: Implement neon assembly for 
> yuv2planeX_10_c_template()
>
> ---
>  libswscale/aarch64/output.S  | 189 +++++++++++++++++++++++++++++++++++
>  libswscale/aarch64/swscale.c |  38 +++++++
>  tests/checkasm/sw_scale.c    | 170 ++++++++++++++++++++-----------
>  3 files changed, 337 insertions(+), 60 deletions(-)

Applying: swscale/aarch64/output: Implement neon assembly for 
yuv2planeX_10_c_template()
Using index info to reconstruct a base tree...
M       tests/checkasm/sw_scale.c
error: patch failed: libswscale/aarch64/output.S:20
error: libswscale/aarch64/output.S: patch does not apply
error: patch failed: libswscale/aarch64/swscale.c:158
error: libswscale/aarch64/swscale.c: patch does not apply
error: patch failed: tests/checkasm/sw_scale.c:52
error: tests/checkasm/sw_scale.c: patch does not apply
error: Did you hand edit your patch?
It does not apply to blobs recorded in its index.
Patch failed at 0001 swscale/aarch64/output: Implement neon assembly for 
yuv2planeX_10_c_template()


[...]

--
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

No great genius has ever existed without some touch of madness. -- Aristotle
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