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| author | Uoti Urpala <uau@mplayer2.org> | 2012-03-08 05:25:33 +0200 |
|---|---|---|
| committer | Uoti Urpala <uau@mplayer2.org> | 2012-03-09 20:48:55 +0200 |
| commit | a8168102668337f3c11619bea7e744fc245adff1 (patch) | |
| tree | 5f847baf425b1e672db6e91b7f307c30f44fb6ec /libvo/vo_gl.c | |
| parent | 2a2f8672188273831dacd58a0dc76055326e4ce2 (diff) | |
| download | mpv-a8168102668337f3c11619bea7e744fc245adff1.tar.bz2 mpv-a8168102668337f3c11619bea7e744fc245adff1.tar.xz | |
vo_gl: improve 10-bit YUV->RGB conversion accuracy slightly
Modify the YUV->RGB conversion matrix to take into account the
difference between the same color value being x/255 in a 8-bit texture
and x*256/65535 in a 16-bit texture (actually things are stored as
x*4/65535 for 10-bit color, but that can be ignored here). This 0.4 %
difference in the shader float value could make shades of gray in
10-bit (or generally more than 8 bit) YUV produce RGB values with
green slightly higher than red/blue.
Diffstat (limited to 'libvo/vo_gl.c')
| -rw-r--r-- | libvo/vo_gl.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libvo/vo_gl.c b/libvo/vo_gl.c index e68465f009..12749426ab 100644 --- a/libvo/vo_gl.c +++ b/libvo/vo_gl.c @@ -220,7 +220,8 @@ static void update_yuvconv(struct vo *vo) mp_get_chroma_shift(p->image_format, &xs, &ys, &depth); params.chrom_texw = params.texw >> xs; params.chrom_texh = params.texh >> ys; - params.csp_params.input_shift = -depth & 7; + params.csp_params.input_bits = depth; + params.csp_params.texture_bits = depth+7 & ~7; glSetupYUVConversion(gl, ¶ms); if (p->custom_prog) { FILE *f = fopen(p->custom_prog, "rb"); |