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swscale/input: fix rgba64 alpha non native 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f30798584f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2015-01-21 20:23:45 +01:00
parent b62b3e1a25
commit f07e2ff697
1 changed files with 15 additions and 5 deletions
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20
libswscale/input.c
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@ -412,14 +412,24 @@ static void gbr24pToUV_half_c(uint8_t *_dstU, uint8_t *_dstV,
}
}
static void rgba64ToA_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused1,
const uint8_t *unused2, int width, uint32_t *unused)
static void rgba64leToA_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused1,
const uint8_t *unused2, int width, uint32_t *unused)
{
int16_t *dst = (int16_t *)_dst;
const uint16_t *src = (const uint16_t *)_src;
int i;
for (i = 0; i < width; i++)
dst[i] = src[4 * i + 3];
dst[i] = AV_RL16(src + 4 * i + 3);
}
static void rgba64beToA_c(uint8_t *_dst, const uint8_t *_src, const uint8_t *unused1,
const uint8_t *unused2, int width, uint32_t *unused)
{
int16_t *dst = (int16_t *)_dst;
const uint16_t *src = (const uint16_t *)_src;
int i;
for (i = 0; i < width; i++)
dst[i] = AV_RB16(src + 4 * i + 3);
}
static void abgrToA_c(uint8_t *_dst, const uint8_t *src, const uint8_t *unused1, const uint8_t *unused2, int width, uint32_t *unused)
@ -1359,9 +1369,9 @@ av_cold void ff_sws_init_input_funcs(SwsContext *c)
}
switch (srcFormat) {
case AV_PIX_FMT_BGRA64LE:
case AV_PIX_FMT_RGBA64LE: c->alpToYV12 = rgba64leToA_c; break;
case AV_PIX_FMT_BGRA64BE:
case AV_PIX_FMT_RGBA64LE:
case AV_PIX_FMT_RGBA64BE: c->alpToYV12 = rgba64ToA_c; break;
case AV_PIX_FMT_RGBA64BE: c->alpToYV12 = rgba64beToA_c; break;
case AV_PIX_FMT_BGRA:
case AV_PIX_FMT_RGBA:
c->alpToYV12 = rgbaToA_c;