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Fix alpha overflow when converting from RGBA64 to RGBA.

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Fixes converting the sample from ticket #503 to 32bit RGB.
This commit is contained in:
Michael Niedermayer 2012-03-04 13:42:16 +01:00 • committed by Carl Eugen Hoyos
parent 409a3bda07
commit 4a9f466b99
1 changed files with 2 additions and 2 deletions
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4
libswscale/output.c
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@ -1040,8 +1040,8 @@ yuv2rgb_1_c_template(SwsContext *c, const int16_t *buf0,
*b = c->table_bU[U + YUVRGB_TABLE_HEADROOM];
if (hasAlpha) {
A1 = (abuf0[i * 2 ] + 64) >> 7;
A2 = (abuf0[i * 2 + 1] + 64) >> 7;
A1 = abuf0[i * 2 ] * 255 + 16384 >> 15;
A2 = abuf0[i * 2 + 1] * 255 + 16384 >> 15;
}
yuv2rgb_write(dest, i, Y1, Y2, hasAlpha ? A1 : 0, hasAlpha ? A2 : 0,