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avcodec/texturedspenc: Fix invalid shift

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Left shifts of signed types are UB unless the results fit
into the type. (Furthermore the value to be shifted need to be
nonnegative.)

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-05-10 18:00:56 +02:00
parent cf9e470d05
commit e92e74b897
1 changed files with 3 additions and 3 deletions
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6
libavcodec/texturedspenc.c
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@ -181,9 +181,9 @@ static unsigned int match_colors(const uint8_t *block, ptrdiff_t stride,
int x, y, k = 0; int x, y, k = 0;
int c0_point, half_point, c3_point; int c0_point, half_point, c3_point;
uint8_t color[16]; uint8_t color[16];
static const int indexMap[8] = { static const uint32_t indexMap[8] = {
0 << 30, 2 << 30, 0 << 30, 2 << 30, 0U << 30, 2U << 30, 0U << 30, 2U << 30,
3 << 30, 3 << 30, 1 << 30, 1 << 30, 3U << 30, 3U << 30, 1U << 30, 1U << 30,
}; };
/* Fill color and compute direction for each component */ /* Fill color and compute direction for each component */