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swscale: Use alpha from the right row in yuva2rgba_c

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Every other pixel had the alpha channel taken from the wrong
row.

This fixes bug 504.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 6e293d111f)

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2013-05-06 14:48:25 +03:00
parent a6f7fc8f3b
commit 5772cbb343
1 changed files with 6 additions and 6 deletions
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12
libswscale/yuv2rgb.c
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@@ -264,16 +264,16 @@ YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
PUTRGBA(dst_2, py_2, pa_2, 0, 24);
LOADCHROMA(1);
PUTRGBA(dst_2, py_2, pa_1, 1, 24);
PUTRGBA(dst_1, py_1, pa_2, 1, 24);
PUTRGBA(dst_2, py_2, pa_2, 1, 24);
PUTRGBA(dst_1, py_1, pa_1, 1, 24);
LOADCHROMA(2);
PUTRGBA(dst_1, py_1, pa_1, 2, 24);
PUTRGBA(dst_2, py_2, pa_2, 2, 24);
LOADCHROMA(3);
PUTRGBA(dst_2, py_2, pa_1, 3, 24);
PUTRGBA(dst_1, py_1, pa_2, 3, 24);
PUTRGBA(dst_2, py_2, pa_2, 3, 24);
PUTRGBA(dst_1, py_1, pa_1, 3, 24);
pa_1 += 8; \
pa_2 += 8; \
ENDYUV2RGBLINE(8, 0)
@@ -282,8 +282,8 @@ ENDYUV2RGBLINE(8, 0)
PUTRGBA(dst_2, py_2, pa_2, 0, 24);
LOADCHROMA(1);
PUTRGBA(dst_2, py_2, pa_1, 1, 24);
PUTRGBA(dst_1, py_1, pa_2, 1, 24);
PUTRGBA(dst_2, py_2, pa_2, 1, 24);
PUTRGBA(dst_1, py_1, pa_1, 1, 24);
pa_1 += 4; \
pa_2 += 4; \
ENDYUV2RGBLINE(8, 1)