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author | wm4 <wm4@nowhere> | 2020-05-09 18:00:15 +0200 |
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committer | wm4 <wm4@nowhere> | 2020-05-09 18:02:57 +0200 |
commit | bf19f34960ef1664ef8da614aa1b034003fcbc0f (patch) | |
tree | f5a7226c4ca5bd377917a30518eed19bf9617dea /video/csputils.h | |
parent | 56dbbc38479bd84905ac4478b1b853e907a583dd (diff) | |
download | mpv-bf19f34960ef1664ef8da614aa1b034003fcbc0f.tar.bz2 mpv-bf19f34960ef1664ef8da614aa1b034003fcbc0f.tar.xz |
csputils: add function for getting uint/float transformation
This provides a way to convert YUV in fixed point (or pseudo-fixed
point; probably best to say "uint") to float, or rather coefficients
to perform such a conversion. Things like colorspace conversion is out
of scope, so this is simple and strictly per-component.
This is somewhat similar to mp_get_csp_mul(), but includes proper color
range expansion and correct chroma centering. The old function even
seems to have a bug, and assumes something about shifted range for full
range YCbCr, which is wrong.
vo_gpu should probably use the new function eventually.
Diffstat (limited to 'video/csputils.h')
-rw-r--r-- | video/csputils.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/video/csputils.h b/video/csputils.h index dfc2a569cc..34e2894a28 100644 --- a/video/csputils.h +++ b/video/csputils.h @@ -288,6 +288,8 @@ void mp_get_cms_matrix(struct mp_csp_primaries src, struct mp_csp_primaries dest enum mp_render_intent intent, float cms_matrix[3][3]); double mp_get_csp_mul(enum mp_csp csp, int input_bits, int texture_bits); +void mp_get_csp_uint_mul(enum mp_csp csp, enum mp_csp_levels levels, + int bits, int component, double *out_m, double *out_o); void mp_get_csp_matrix(struct mp_csp_params *params, struct mp_cmat *out); void mp_invert_matrix3x3(float m[3][3]); |