[FFmpeg-devel] [PATCH 3/3] lavc/svq1enc: R-V V ssd_int8_vs_int16

flow gg hlefthleft at gmail.com
Sat Dec 30 16:00:53 EET 2023


> At a quick glance, it won't work if the input length is not a multiple of
the vector length.

Why? I tried 1024, 32*3, 32*7 and all passed the test.

> Also do you really need to extend accumulators to 32 bits?

It won't overflow after the test is changed, so it's not needed anymore.
I have modified it in this reply.

Rémi Denis-Courmont <remi at remlab.net> 于2023年12月30日周六 20:15写道:

>
>
> Le 29 décembre 2023 12:57:20 GMT+01:00, flow gg <hlefthleft at gmail.com> a
> écrit :
> >C908
> >ssd_int8_vs_int16_c: 207.7
> >ssd_int8_vs_int16_rvv_i32: 28.0
>
> At a quick glance, it won't work if the input length is not a multiple of
> the vector length.
>
> Also do you really need to extend accumulators to 32 bits?
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".
>


More information about the ffmpeg-devel mailing list