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pgssub: Fix subpicture colorspace and range

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Widen the values from limited to full range and use BT.709 where it
should be used according to the video resolution:

SD is BT.601, HD is BT.709

Default to BT.709 due to most observed HDMV content being HD.
This commit is contained in:
Jan Ekström 2016-04-24 20:33:45 +02:00 committed by Luca Barbato
parent 1f77e634bb
commit 885a9d6087
1 changed files with 8 additions and 2 deletions
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10
libavcodec/pgssubdec.c
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@ -351,8 +351,14 @@ static int parse_palette_segment(AVCodecContext *avctx,
cb = bytestream_get_byte(&buf);
alpha = bytestream_get_byte(&buf);
YUV_TO_RGB1(cb, cr);
YUV_TO_RGB2(r, g, b, y);
/* Default to BT.709 colorspace. In case of <= 576 height use BT.601 */
if (avctx->height <= 0 || avctx->height > 576) {
YUV_TO_RGB1_CCIR_BT709(cb, cr);
} else {
YUV_TO_RGB1_CCIR(cb, cr);
}
YUV_TO_RGB2_CCIR(r, g, b, y);
ff_dlog(avctx, "Color %d := (%d,%d,%d,%d)\n", color_id, r, g, b, alpha);