[FFmpeg-devel] [PATCH 44/57] avcodec/vc1_block: Simplify resetting coded_block
Andreas Rheinhardt
andreas.rheinhardt at outlook.com
Wed Jun 12 16:48:40 EEST 2024
Everything that init_block_index() sets will be overwritten
a few lines below again, so don't call it and simply calculate
the only thing that is used (namely block_index[0]) manually.
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
libavcodec/vc1_block.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libavcodec/vc1_block.c b/libavcodec/vc1_block.c
index 384979caf5..1d622b1a67 100644
--- a/libavcodec/vc1_block.c
+++ b/libavcodec/vc1_block.c
@@ -2680,8 +2680,7 @@ static int vc1_decode_i_blocks_adv(VC1Context *v)
s->mb_x = 0;
s->mb_y = s->start_mb_y;
if (s->start_mb_y) {
- init_block_index(v);
- memset(&s->coded_block[s->block_index[0] - s->b8_stride], 0,
+ memset(&s->coded_block[(2 * s->mb_y - 1) * s->b8_stride - 2], 0,
(1 + s->b8_stride) * sizeof(*s->coded_block));
}
for (; s->mb_y < s->end_mb_y; s->mb_y++) {
--
2.40.1
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