diff options
Diffstat (limited to 'sub/spudec.c')
| -rw-r--r-- | sub/spudec.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/sub/spudec.c b/sub/spudec.c index 22f121e92c..59c3058251 100644 --- a/sub/spudec.c +++ b/sub/spudec.c @@ -43,7 +43,6 @@ #include "core/mp_msg.h" #include "spudec.h" -#include "vobsub.h" #include "sub.h" #include "core/mp_common.h" #include "video/csputils.h" @@ -659,6 +658,33 @@ void spudec_get_indexed(void *this, struct mp_osd_res *dim, } } +static unsigned int vobsub_palette_to_yuv(unsigned int pal) +{ + int r, g, b, y, u, v; + // Palette in idx file is not rgb value, it was calculated by wrong formula. + // Here's reversed formula of the one used to generate palette in idx file. + r = pal >> 16 & 0xff; + g = pal >> 8 & 0xff; + b = pal & 0xff; + y = av_clip_uint8( 0.1494 * r + 0.6061 * g + 0.2445 * b); + u = av_clip_uint8( 0.6066 * r - 0.4322 * g - 0.1744 * b + 128); + v = av_clip_uint8(-0.08435 * r - 0.3422 * g + 0.4266 * b + 128); + y = y * 219 / 255 + 16; + return y << 16 | u << 8 | v; +} + +static unsigned int vobsub_rgb_to_yuv(unsigned int rgb) +{ + int r, g, b, y, u, v; + r = rgb >> 16 & 0xff; + g = rgb >> 8 & 0xff; + b = rgb & 0xff; + y = ( 0.299 * r + 0.587 * g + 0.114 * b) * 219 / 255 + 16.5; + u = (-0.16874 * r - 0.33126 * g + 0.5 * b) * 224 / 255 + 128.5; + v = ( 0.5 * r - 0.41869 * g - 0.08131 * b) * 224 / 255 + 128.5; + return y << 16 | u << 8 | v; +} + static void spudec_parse_extradata(spudec_handle_t *this, uint8_t *extradata, int extradata_len) { |