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Code Issues Releases Activity

avcodec/v210dec: do not use accelerated code for the last pixels of a row

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ASM code tends to overwrite the buffers by 2-4 bytes and it can cause issues
with slice threads.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint
2022-06-12 02:44:38 +02:00
parent 5716836963
commit 2e895edb5d
1 changed files with 2 additions and 2 deletions
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4
libavcodec/v210dec.c
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@@ -54,7 +54,7 @@ static void decode_row(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *
void (*unpack_frame)(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)) void (*unpack_frame)(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width))
{ {
uint32_t val; uint32_t val;
int w = (width / 12) * 12; int w = (FFMAX(0, width - 12) / 12) * 12;
unpack_frame(src, y, u, v, w); unpack_frame(src, y, u, v, w);
@@ -63,7 +63,7 @@ static void decode_row(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *
v += w >> 1; v += w >> 1;
src += (w << 1) / 3; src += (w << 1) / 3;
if (w < width - 5) { while (w < width - 5) {
READ_PIXELS(u, y, v); READ_PIXELS(u, y, v);
READ_PIXELS(y, u, y); READ_PIXELS(y, u, y);
READ_PIXELS(v, y, u); READ_PIXELS(v, y, u);