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avcodec/snow: Avoid always-true branch

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The input lines used in ff_snow_inner_add_yblock()
must always be set (because their values are used).
The MMX assembly always relied on this.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2026-04-08 09:29:33 +02:00
parent 13d621cc7c
commit fd77f00a8f
1 changed files with 3 additions and 2 deletions
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5
libavcodec/snow.c
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@ -118,7 +118,6 @@ static av_cold void init_qpel(SnowContext *const s)
void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
int y, x;
IDWTELEM * dst;
av_assume(add); // add == 0 is currently unused
@ -128,7 +127,9 @@ void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_
const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
dst = slice_buffer_get_line(sb, src_y + y);
IDWTELEM *dst = sb->line[src_y+y];
av_assert2(dst);
for(x=0; x<b_w; x++){
int v= obmc1[x] * block[3][x + y*src_stride]
+obmc2[x] * block[2][x + y*src_stride]