[vlc-devel] [PATCH] picture: align pictures on 32 bytes

[Tristan Matthews]

Hi,

On Fri, Nov 9, 2018 at 11:58 AM Steve Lhomme <robux4 at ycbcr.xyz> wrote:
>
> Code relying on AVX-2 (like dav1d) cannot work without that. Even avcodec has a
> requirement of 64 (likely to get at least 32 on all planes). So it's probably
> time to upgrade.
> ---
>  src/misc/picture.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/misc/picture.c b/src/misc/picture.c
> index b373ebd21f..799dab479e 100644
> --- a/src/misc/picture.c
> +++ b/src/misc/picture.c
> @@ -75,7 +75,7 @@ VLC_WEAK void *picture_Allocate(int *restrict fdp, size_t size)
>  {
>      assert((size % 16) == 0);

Would it make sense to update the assertions?

Best,
-t

>      *fdp = -1;
> -    return aligned_alloc(16, size);
> +    return aligned_alloc(32, size);
>  }
>
>  VLC_WEAK void picture_Deallocate(int fd, void *base, size_t size)
> --
> 2.17.1
>
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