mirror of
https://github.com/mpv-player/mpv
synced 2024-12-17 04:15:13 +00:00
f296dcb248
There was some code accounting for different gamma values for R/G/B. It's inherited from an old, undocumented MPlayer feature, which was at some point disabled for convenience by myself (meaning you couldn't actually set separate gamma because it was removed from the property interface - mp_csp_copy_equalizer_values() just set them to the same value). Get rid of these meaningless leftovers.
247 lines
8.0 KiB
C
247 lines
8.0 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* You can alternatively redistribute this file and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*/
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#ifndef MPLAYER_CSPUTILS_H
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#define MPLAYER_CSPUTILS_H
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#include <stdbool.h>
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#include <stdint.h>
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/* NOTE: the csp and levels AUTO values are converted to specific ones
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* above vf/vo level. At least vf_scale relies on all valid settings being
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* nonzero at vf/vo level.
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*/
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enum mp_csp {
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MP_CSP_AUTO,
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MP_CSP_BT_601,
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MP_CSP_BT_709,
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MP_CSP_SMPTE_240M,
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MP_CSP_BT_2020_NC,
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MP_CSP_BT_2020_C,
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MP_CSP_RGB,
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MP_CSP_XYZ,
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MP_CSP_YCGCO,
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MP_CSP_COUNT
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};
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// Any enum mp_csp value is a valid index (except MP_CSP_COUNT)
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extern const char *const mp_csp_names[MP_CSP_COUNT];
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enum mp_csp_levels {
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MP_CSP_LEVELS_AUTO,
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MP_CSP_LEVELS_TV,
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MP_CSP_LEVELS_PC,
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MP_CSP_LEVELS_COUNT,
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};
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// Any enum mp_csp_levels value is a valid index (except MP_CSP_LEVELS_COUNT)
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extern const char *const mp_csp_levels_names[MP_CSP_LEVELS_COUNT];
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enum mp_csp_prim {
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MP_CSP_PRIM_AUTO,
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MP_CSP_PRIM_BT_601_525,
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MP_CSP_PRIM_BT_601_625,
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MP_CSP_PRIM_BT_709,
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MP_CSP_PRIM_BT_2020,
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MP_CSP_PRIM_COUNT
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};
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enum mp_csp_trc {
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MP_CSP_TRC_NONE,
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MP_CSP_TRC_BT_1886,
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MP_CSP_TRC_SRGB,
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MP_CSP_TRC_LINEAR
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};
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// Any enum mp_csp_prim value is a valid index (except MP_CSP_PRIM_COUNT)
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extern const char *const mp_csp_prim_names[MP_CSP_PRIM_COUNT];
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// These constants are based on the ICC specification (Table 23) and match
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// up with the API of LittleCMS, which treats them as integers.
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enum mp_render_intent {
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MP_INTENT_PERCEPTUAL = 0,
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MP_INTENT_RELATIVE_COLORIMETRIC = 1,
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MP_INTENT_SATURATION = 2,
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MP_INTENT_ABSOLUTE_COLORIMETRIC = 3
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};
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// The numeric values (except -1) match the Matroska StereoMode element value.
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enum mp_stereo3d_mode {
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MP_STEREO3D_INVALID = -1,
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/* only modes explicitly referenced in the code are listed */
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MP_STEREO3D_MONO = 0,
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MP_STEREO3D_SBS2L = 1,
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MP_STEREO3D_AB2R = 2,
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MP_STEREO3D_AB2L = 3,
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MP_STEREO3D_SBS2R = 11,
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/* no explicit enum entries for most valid values */
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MP_STEREO3D_COUNT = 13, // 12 is last valid mode
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};
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extern const char *const mp_stereo3d_names[MP_STEREO3D_COUNT];
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#define MP_STEREO3D_NAME(x) \
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((x) >= 0 && (x) < MP_STEREO3D_COUNT ? (char *)mp_stereo3d_names[(x)] : NULL)
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#define MP_STEREO3D_NAME_DEF(x, def) \
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(MP_STEREO3D_NAME(x) ? MP_STEREO3D_NAME(x) : (def))
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struct mp_csp_params {
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enum mp_csp colorspace;
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enum mp_csp_levels levels_in; // encoded video
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enum mp_csp_levels levels_out; // output device
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float brightness;
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float contrast;
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float hue;
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float saturation;
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float gamma;
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// discard U/V components
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bool gray;
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// texture_bits/input_bits is for rescaling fixed point input to range [0,1]
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int texture_bits;
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int input_bits;
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// for scaling integer input and output (if 0, assume range [0,1])
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int int_bits_in;
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int int_bits_out;
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};
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#define MP_CSP_PARAMS_DEFAULTS { \
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.colorspace = MP_CSP_BT_601, \
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.levels_in = MP_CSP_LEVELS_TV, \
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.levels_out = MP_CSP_LEVELS_PC, \
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.brightness = 0, .contrast = 1, .hue = 0, .saturation = 1, \
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.gamma = 1, .texture_bits = 8, .input_bits = 8}
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struct mp_image_params;
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void mp_csp_set_image_params(struct mp_csp_params *params,
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const struct mp_image_params *imgparams);
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enum mp_chroma_location {
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MP_CHROMA_AUTO,
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MP_CHROMA_LEFT, // mpeg2/4, h264
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MP_CHROMA_CENTER, // mpeg1, jpeg
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MP_CHROMA_COUNT,
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};
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extern const char *const mp_chroma_names[MP_CHROMA_COUNT];
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enum mp_csp_equalizer_param {
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MP_CSP_EQ_BRIGHTNESS,
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MP_CSP_EQ_CONTRAST,
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MP_CSP_EQ_HUE,
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MP_CSP_EQ_SATURATION,
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MP_CSP_EQ_GAMMA,
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MP_CSP_EQ_COUNT,
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};
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#define MP_CSP_EQ_CAPS_COLORMATRIX \
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( (1 << MP_CSP_EQ_BRIGHTNESS) \
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| (1 << MP_CSP_EQ_CONTRAST) \
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| (1 << MP_CSP_EQ_HUE) \
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| (1 << MP_CSP_EQ_SATURATION) )
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#define MP_CSP_EQ_CAPS_GAMMA (1 << MP_CSP_EQ_GAMMA)
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#define MP_CSP_EQ_CAPS_BRIGHTNESS (1 << MP_CSP_EQ_BRIGHTNESS)
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extern const char *const mp_csp_equalizer_names[MP_CSP_EQ_COUNT];
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// Default initialization with 0 is enough, except for the capabilities field
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struct mp_csp_equalizer {
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// Bit field of capabilities. For example (1 << MP_CSP_EQ_HUE) means hue
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// support is available.
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int capabilities;
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// Value for each property is in the range [-100, 100].
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// 0 is default, meaning neutral or no change.
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int values[MP_CSP_EQ_COUNT];
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};
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struct mp_csp_col_xy {
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float x, y;
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};
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struct mp_csp_primaries {
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struct mp_csp_col_xy red, green, blue, white;
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};
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void mp_csp_copy_equalizer_values(struct mp_csp_params *params,
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const struct mp_csp_equalizer *eq);
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int mp_csp_equalizer_set(struct mp_csp_equalizer *eq, const char *property,
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int value);
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int mp_csp_equalizer_get(struct mp_csp_equalizer *eq, const char *property,
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int *out_value);
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enum mp_csp avcol_spc_to_mp_csp(int avcolorspace);
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enum mp_csp_levels avcol_range_to_mp_csp_levels(int avrange);
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enum mp_csp_prim avcol_pri_to_mp_csp_prim(int avpri);
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int mp_csp_to_avcol_spc(enum mp_csp colorspace);
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int mp_csp_levels_to_avcol_range(enum mp_csp_levels range);
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int mp_csp_prim_to_avcol_pri(enum mp_csp_prim prim);
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enum mp_csp mp_csp_guess_colorspace(int width, int height);
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enum mp_csp_prim mp_csp_guess_primaries(int width, int height);
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enum mp_chroma_location avchroma_location_to_mp(int avloc);
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int mp_chroma_location_to_av(enum mp_chroma_location mploc);
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void mp_get_chroma_location(enum mp_chroma_location loc, int *x, int *y);
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struct mp_csp_primaries mp_get_csp_primaries(enum mp_csp_prim csp);
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/* Color conversion matrix: RGB = m * YUV + c
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* m is in row-major matrix, with m[row][col], e.g.:
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* [ a11 a12 a13 ] float m[3][3] = { { a11, a12, a13 },
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* [ a21 a22 a23 ] { a21, a22, a23 },
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* [ a31 a32 a33 ] { a31, a32, a33 } };
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* This is accessed as e.g.: m[2-1][1-1] = a21
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* In particular, each row contains all the coefficients for one of R, G, B,
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* while each column contains all the coefficients for one of Y, U, V:
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* m[r,g,b][y,u,v] = ...
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* The matrix could also be viewed as group of 3 vectors, e.g. the 1st column
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* is the Y vector (1, 1, 1), the 2nd is the U vector, the 3rd the V vector.
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* The matrix might also be used for other conversions and colorspaces.
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*/
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struct mp_cmat {
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float m[3][3];
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float c[3];
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};
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void mp_get_cms_matrix(struct mp_csp_primaries src, struct mp_csp_primaries dest,
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enum mp_render_intent intent, float cms_matrix[3][3]);
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void mp_get_xyz2rgb_coeffs(struct mp_csp_params *params, struct mp_csp_primaries prim,
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enum mp_render_intent intent, struct mp_cmat *xyz2rgb);
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void mp_get_yuv2rgb_coeffs(struct mp_csp_params *params, struct mp_cmat *yuv2rgb);
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void mp_invert_matrix3x3(float m[3][3]);
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void mp_invert_yuv2rgb(struct mp_cmat *out, struct mp_cmat *in);
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void mp_map_int_color(struct mp_cmat *matrix, int clip_bits, int c[3]);
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#endif /* MPLAYER_CSPUTILS_H */
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