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https://github.com/mpv-player/mpv
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45c3e0f0d0
Instead of doing HDR tone mapping on an ad-hoc basis inside pass_colormanage, the reference peak of an image is now part of the image params (alongside colorspace, gamma, etc.) and tone mapping is done whenever peak_src != peak_dst. To get sensible behavior when mixing HDR and SDR content and displays, target-brightness is a generic filler for "the assumed brightness of SDR content". This gets rid of the weird display_scaled hack, sets the framework for multiple HDR functions with difference reference peaks, and allows us to (in a future commit) autodetect the right source peak from the HDR metadata. (Apart from metadata, the source peak can also be controlled via vf_format. For HDR content this adjusts the overall image brightness, for SDR content it's like simulating a different exposure)
50 lines
1.8 KiB
C
50 lines
1.8 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it 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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* mpv 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_GL_VIDEO_SHADERS_H
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#define MP_GL_VIDEO_SHADERS_H
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#include <libavutil/lfg.h>
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#include "common.h"
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#include "utils.h"
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#include "video.h"
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extern const struct deband_opts deband_opts_def;
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extern const struct m_sub_options deband_conf;
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void sampler_prelude(struct gl_shader_cache *sc, int tex_num);
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void pass_sample_separated_gen(struct gl_shader_cache *sc, struct scaler *scaler,
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int d_x, int d_y);
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void pass_sample_polar(struct gl_shader_cache *sc, struct scaler *scaler);
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void pass_sample_bicubic_fast(struct gl_shader_cache *sc);
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void pass_sample_oversample(struct gl_shader_cache *sc, struct scaler *scaler,
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int w, int h);
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void pass_linearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
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void pass_delinearize(struct gl_shader_cache *sc, enum mp_csp_trc trc);
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void pass_tone_map(struct gl_shader_cache *sc, float peak,
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enum tone_mapping algo, float param);
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void pass_sample_deband(struct gl_shader_cache *sc, struct deband_opts *opts,
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AVLFG *lfg);
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void pass_sample_unsharp(struct gl_shader_cache *sc, float param);
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#endif
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