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84 lines
2.1 KiB
84 lines
2.1 KiB
3 years ago
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/*
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* Copyright (c) 2013 Clément Bœsch
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* Copyright (c) 2018 Paul B Mahol
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 GNU
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* 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 FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_LUT3D_H
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#define AVFILTER_LUT3D_H
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#include "libavutil/pixdesc.h"
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#include "framesync.h"
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#include "avfilter.h"
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enum interp_mode {
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INTERPOLATE_NEAREST,
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INTERPOLATE_TRILINEAR,
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INTERPOLATE_TETRAHEDRAL,
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INTERPOLATE_PYRAMID,
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INTERPOLATE_PRISM,
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NB_INTERP_MODE
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};
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struct rgbvec {
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float r, g, b;
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};
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/* 3D LUT don't often go up to level 32, but it is common to have a Hald CLUT
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* of 512x512 (64x64x64) */
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#define MAX_LEVEL 256
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#define PRELUT_SIZE 65536
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typedef struct Lut3DPreLut {
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int size;
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float min[3];
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float max[3];
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float scale[3];
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float* lut[3];
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} Lut3DPreLut;
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typedef struct LUT3DContext {
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const AVClass *class;
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struct rgbvec *lut;
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int lutsize;
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int lutsize2;
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struct rgbvec scale;
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int interpolation; ///<interp_mode
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char *file;
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uint8_t rgba_map[4];
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int step;
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avfilter_action_func *interp;
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Lut3DPreLut prelut;
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#if CONFIG_HALDCLUT_FILTER
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uint8_t clut_rgba_map[4];
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int clut_step;
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int clut_bits;
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int clut_planar;
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int clut_float;
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int clut_width;
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FFFrameSync fs;
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#endif
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} LUT3DContext;
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typedef struct ThreadData {
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AVFrame *in, *out;
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} ThreadData;
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void ff_lut3d_init_x86(LUT3DContext *s, const AVPixFmtDescriptor *desc);
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#endif /* AVFILTER_LUT3D_H */
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