[FFmpeg-devel] [PATCH] lavc/vp8dsp: R-V V put_vp8_pixels

[flow gg]

This vp8dsp.h is from libavcodec/aarch64/vp8dsp.h
It simply changes AARCH64 to RISCV
libavcodec/arm/vp8dsp.h uses a similar method (arm in this header file
added 4 lines of other arm function declarations)
I want to simply use the same pattern

Rémi Denis-Courmont <remi at remlab.net> 于2024年2月22日周四 02:02写道：

> Hello,
>
> Le maanantaina 19. helmikuuta 2024, 13.13.43 EET flow gg a écrit :
> > The reason for using m1+le8 instead of stride load + larger group
> > multipliers is the same as in "[FFmpeg-devel] [PATCH 1/7] lavc/me_cmp:
> R-V
> > V pix_abs."
> >
> > In the test, there is
> >
> > #define src (buf + 2 * SRC_BUF_STRIDE + 2 + 1)
> >
> > Therefore, not using e8 will result : (fatal signal 7: Bus error).
>
> Yes, you could also just say that alignment is insufficient :)
>
> It is still possible to load rectangles of up to 8 columns using vlseg8e8,
> but
> it might be slower than just repeating the 8 regular loads, and it won't
> work
> if you need calculations between rows.
>
> I may be missing something but I don't understand what purpose the header
> file
> serves here?
>
> --
> Rémi Denis-Courmont
> http://www.remlab.net/
>
>
>
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