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dvdsubdec: fix incorrect colors.

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On DVD and HD-DVD colors are stored in the order YCrCb (and not YCbCr) as mentioned in the specifications:
see DVD Specifications for Read-Only Disc / Part 3, 4.3 Program Chain Information (7) PGC_SP_PLT
see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (11) PGC_SDSP_PLT
see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (12) PGC_HDSP_PLT
see DVD Specifications for High Definition Disc, 5.5 Presentation Data (4) SET_COLOR2

When decoding a DVD or HD-DVD subtitle, the colors were incorrectly set.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Alexandre Colucci 2011-03-25 11:25:02 +01:00 committed by Anton Khirnov
parent ab088f7d28
commit 676eaf8433
1 changed files with 1 additions and 1 deletions
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2
libavcodec/dvdsubdec.c
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@ -34,8 +34,8 @@ static void yuv_a_to_rgba(const uint8_t *ycbcr, const uint8_t *alpha, uint32_t *
for (i = num_values; i > 0; i--) { for (i = num_values; i > 0; i--) {
y = *ycbcr++; y = *ycbcr++;
cb = *ycbcr++;
cr = *ycbcr++; cr = *ycbcr++;
cb = *ycbcr++;
YUV_TO_RGB1_CCIR(cb, cr); YUV_TO_RGB1_CCIR(cb, cr);
YUV_TO_RGB2_CCIR(r, g, b, y); YUV_TO_RGB2_CCIR(r, g, b, y);
*rgba++ = (*alpha++ << 24) | (r << 16) | (g << 8) | b; *rgba++ = (*alpha++ << 24) | (r << 16) | (g << 8) | b;