[FFmpeg-devel] [PATCH] VP8: faster deblock strength calculation

[Ronald S. Bultje]

PS,

On Fri, Feb 4, 2011 at 1:49 AM, Jason Garrett-Glaser <jason at x264.com> wrote:
> - ? ?mbedge_lim = 2*(filter_level+2) + inner_limit;
> - ? ? bedge_lim = 2* filter_level ? ?+ inner_limit;
[..]
> + ? ? bedge_lim = 2*filter_level + inner_limit;
> + ? ?mbedge_lim = bedge_lim + 4;
[..]
> @@ -1577,8 +1578,8 @@ static av_always_inline void filter_mb_simple(VP8Context *s, uint8_t *dst, VP8Fi
> ? ? if (!filter_level)
> ? ? ? ? return;
>
> - ? ?mbedge_lim = 2*(filter_level+2) + inner_limit;
> - ? ? bedge_lim = 2* filter_level ? ?+ inner_limit;
> + ? ? bedge_lim = 2*filter_level + inner_limit;
> + ? ?mbedge_lim = bedge_lim + 4;

I would not be entirely surprised if gcc could come up with something
similar, I've seen it made such decisions in the past. Of course, it
never hurts to help gcc along a little, so you should still apply...

Ronald