Am Mi., 28. Aug. 2019 um 17:46 Uhr schrieb <lance.lmw...@gmail.com>:
>
> From: Limin Wang <lance.lmw...@gmail.com>
>
> Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> ---
> libavcodec/v210enc.c | 7 +------
> 1 file changed, 1 insertion(+), 6 deletions(-)
>
> diff --git a/libavcodec/v210enc.c b/libavcodec/v210enc.c
> index 1b840b2..69a2efe 100644
> --- a/libavcodec/v210enc.c
> +++ b/libavcodec/v210enc.c
> @@ -43,12 +43,7 @@ static void v210_planar_pack_8_c(const uint8_t *y, const
> uint8_t *u,
> uint32_t val;
> int i;
>
> - /* unroll this to match the assembly */
> - for (i = 0; i < width - 11; i += 12) {
> - WRITE_PIXELS(u, y, v, 8);
> - WRITE_PIXELS(y, u, y, 8);
> - WRITE_PIXELS(v, y, u, 8);
> - WRITE_PIXELS(y, v, y, 8);
> + for (i = 0; i < width - 5; i += 6) {
> WRITE_PIXELS(u, y, v, 8);
> WRITE_PIXELS(y, u, y, 8);
> WRITE_PIXELS(v, y, u, 8);
Doesn't this have a performance impact?
Carl Eugen
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