diff options
| -rw-r--r-- | libavcodec/pgssubdec.c | 10 | ||||
| -rw-r--r-- | libavutil/colorspace.h | 10 |
2 files changed, 18 insertions, 2 deletions
diff --git a/libavcodec/pgssubdec.c b/libavcodec/pgssubdec.c index 07a2a78629..133d08bfa7 100644 --- a/libavcodec/pgssubdec.c +++ b/libavcodec/pgssubdec.c @@ -354,8 +354,14 @@ 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 colorimetry. 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); diff --git a/libavutil/colorspace.h b/libavutil/colorspace.h index 826ffd52c4..7d3f7110c9 100644 --- a/libavutil/colorspace.h +++ b/libavutil/colorspace.h @@ -41,6 +41,16 @@ b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;\ } +#define YUV_TO_RGB1_CCIR_BT709(cb1, cr1)\ +{\ + cb = (cb1) - 128;\ + cr = (cr1) - 128;\ + r_add = FIX(1.5747*255.0/224.0) * cr + ONE_HALF;\ + g_add = - FIX(0.1873*255.0/224.0) * cb - FIX(0.4682*255.0/224.0) * cr + \ + ONE_HALF;\ + b_add = FIX(1.8556*255.0/224.0) * cb + ONE_HALF;\ +} + #define YUV_TO_RGB2_CCIR(r, g, b, y1)\ {\ y = ((y1) - 16) * FIX(255.0/219.0);\ |