mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-12 02:14:56 +02:00
1693 lines
68 KiB
C
1693 lines
68 KiB
C
/*
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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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/**
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* @file
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* 3D Lookup table filter
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*/
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#include "libavutil/opt.h"
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#include "libavutil/file.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/avassert.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/avstring.h"
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#include "avfilter.h"
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#include "drawutils.h"
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#include "formats.h"
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#include "framesync.h"
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#include "internal.h"
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#include "video.h"
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#define R 0
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#define G 1
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#define B 2
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#define A 3
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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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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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typedef struct LUT3DContext {
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const AVClass *class;
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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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struct rgbvec scale;
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struct rgbvec *lut;
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int lutsize;
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int lutsize2;
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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_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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#define OFFSET(x) offsetof(LUT3DContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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#define COMMON_OPTIONS \
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{ "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_TETRAHEDRAL}, 0, NB_INTERP_MODE-1, FLAGS, "interp_mode" }, \
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{ "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_NEAREST}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \
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{ "trilinear", "interpolate values using the 8 points defining a cube", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TRILINEAR}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \
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{ "tetrahedral", "interpolate values using a tetrahedron", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_TETRAHEDRAL}, INT_MIN, INT_MAX, FLAGS, "interp_mode" }, \
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{ NULL }
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static inline float lerpf(float v0, float v1, float f)
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{
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return v0 + (v1 - v0) * f;
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}
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static inline struct rgbvec lerp(const struct rgbvec *v0, const struct rgbvec *v1, float f)
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{
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struct rgbvec v = {
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lerpf(v0->r, v1->r, f), lerpf(v0->g, v1->g, f), lerpf(v0->b, v1->b, f)
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};
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return v;
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}
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#define NEAR(x) ((int)((x) + .5))
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#define PREV(x) ((int)(x))
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#define NEXT(x) (FFMIN((int)(x) + 1, lut3d->lutsize - 1))
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/**
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* Get the nearest defined point
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*/
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static inline struct rgbvec interp_nearest(const LUT3DContext *lut3d,
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const struct rgbvec *s)
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{
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return lut3d->lut[NEAR(s->r) * lut3d->lutsize2 + NEAR(s->g) * lut3d->lutsize + NEAR(s->b)];
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}
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/**
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* Interpolate using the 8 vertices of a cube
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* @see https://en.wikipedia.org/wiki/Trilinear_interpolation
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*/
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static inline struct rgbvec interp_trilinear(const LUT3DContext *lut3d,
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const struct rgbvec *s)
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{
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const int lutsize2 = lut3d->lutsize2;
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const int lutsize = lut3d->lutsize;
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const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
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const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
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const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
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const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
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const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
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const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
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const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
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const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
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const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
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const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
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const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
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const struct rgbvec c00 = lerp(&c000, &c100, d.r);
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const struct rgbvec c10 = lerp(&c010, &c110, d.r);
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const struct rgbvec c01 = lerp(&c001, &c101, d.r);
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const struct rgbvec c11 = lerp(&c011, &c111, d.r);
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const struct rgbvec c0 = lerp(&c00, &c10, d.g);
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const struct rgbvec c1 = lerp(&c01, &c11, d.g);
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const struct rgbvec c = lerp(&c0, &c1, d.b);
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return c;
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}
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/**
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* Tetrahedral interpolation. Based on code found in Truelight Software Library paper.
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* @see http://www.filmlight.ltd.uk/pdf/whitepapers/FL-TL-TN-0057-SoftwareLib.pdf
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*/
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static inline struct rgbvec interp_tetrahedral(const LUT3DContext *lut3d,
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const struct rgbvec *s)
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{
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const int lutsize2 = lut3d->lutsize2;
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const int lutsize = lut3d->lutsize;
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const int prev[] = {PREV(s->r), PREV(s->g), PREV(s->b)};
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const int next[] = {NEXT(s->r), NEXT(s->g), NEXT(s->b)};
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const struct rgbvec d = {s->r - prev[0], s->g - prev[1], s->b - prev[2]};
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const struct rgbvec c000 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + prev[2]];
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const struct rgbvec c111 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + next[2]];
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struct rgbvec c;
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if (d.r > d.g) {
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if (d.g > d.b) {
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const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
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const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
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c.r = (1-d.r) * c000.r + (d.r-d.g) * c100.r + (d.g-d.b) * c110.r + (d.b) * c111.r;
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c.g = (1-d.r) * c000.g + (d.r-d.g) * c100.g + (d.g-d.b) * c110.g + (d.b) * c111.g;
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c.b = (1-d.r) * c000.b + (d.r-d.g) * c100.b + (d.g-d.b) * c110.b + (d.b) * c111.b;
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} else if (d.r > d.b) {
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const struct rgbvec c100 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + prev[2]];
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const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
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c.r = (1-d.r) * c000.r + (d.r-d.b) * c100.r + (d.b-d.g) * c101.r + (d.g) * c111.r;
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c.g = (1-d.r) * c000.g + (d.r-d.b) * c100.g + (d.b-d.g) * c101.g + (d.g) * c111.g;
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c.b = (1-d.r) * c000.b + (d.r-d.b) * c100.b + (d.b-d.g) * c101.b + (d.g) * c111.b;
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} else {
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const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
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const struct rgbvec c101 = lut3d->lut[next[0] * lutsize2 + prev[1] * lutsize + next[2]];
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c.r = (1-d.b) * c000.r + (d.b-d.r) * c001.r + (d.r-d.g) * c101.r + (d.g) * c111.r;
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c.g = (1-d.b) * c000.g + (d.b-d.r) * c001.g + (d.r-d.g) * c101.g + (d.g) * c111.g;
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c.b = (1-d.b) * c000.b + (d.b-d.r) * c001.b + (d.r-d.g) * c101.b + (d.g) * c111.b;
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}
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} else {
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if (d.b > d.g) {
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const struct rgbvec c001 = lut3d->lut[prev[0] * lutsize2 + prev[1] * lutsize + next[2]];
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const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
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c.r = (1-d.b) * c000.r + (d.b-d.g) * c001.r + (d.g-d.r) * c011.r + (d.r) * c111.r;
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c.g = (1-d.b) * c000.g + (d.b-d.g) * c001.g + (d.g-d.r) * c011.g + (d.r) * c111.g;
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c.b = (1-d.b) * c000.b + (d.b-d.g) * c001.b + (d.g-d.r) * c011.b + (d.r) * c111.b;
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} else if (d.b > d.r) {
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const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
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const struct rgbvec c011 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + next[2]];
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c.r = (1-d.g) * c000.r + (d.g-d.b) * c010.r + (d.b-d.r) * c011.r + (d.r) * c111.r;
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c.g = (1-d.g) * c000.g + (d.g-d.b) * c010.g + (d.b-d.r) * c011.g + (d.r) * c111.g;
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c.b = (1-d.g) * c000.b + (d.g-d.b) * c010.b + (d.b-d.r) * c011.b + (d.r) * c111.b;
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} else {
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const struct rgbvec c010 = lut3d->lut[prev[0] * lutsize2 + next[1] * lutsize + prev[2]];
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const struct rgbvec c110 = lut3d->lut[next[0] * lutsize2 + next[1] * lutsize + prev[2]];
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c.r = (1-d.g) * c000.r + (d.g-d.r) * c010.r + (d.r-d.b) * c110.r + (d.b) * c111.r;
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c.g = (1-d.g) * c000.g + (d.g-d.r) * c010.g + (d.r-d.b) * c110.g + (d.b) * c111.g;
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c.b = (1-d.g) * c000.b + (d.g-d.r) * c010.b + (d.r-d.b) * c110.b + (d.b) * c111.b;
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}
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}
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return c;
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}
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#define DEFINE_INTERP_FUNC_PLANAR(name, nbits, depth) \
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static int interp_##nbits##_##name##_p##depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
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{ \
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int x, y; \
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const LUT3DContext *lut3d = ctx->priv; \
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const ThreadData *td = arg; \
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const AVFrame *in = td->in; \
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const AVFrame *out = td->out; \
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const int direct = out == in; \
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const int slice_start = (in->height * jobnr ) / nb_jobs; \
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const int slice_end = (in->height * (jobnr+1)) / nb_jobs; \
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uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
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uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
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uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
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uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
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const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
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const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
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const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
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const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
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const float scale_r = (lut3d->scale.r / ((1<<depth) - 1)) * (lut3d->lutsize - 1); \
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const float scale_g = (lut3d->scale.g / ((1<<depth) - 1)) * (lut3d->lutsize - 1); \
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const float scale_b = (lut3d->scale.b / ((1<<depth) - 1)) * (lut3d->lutsize - 1); \
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\
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for (y = slice_start; y < slice_end; y++) { \
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uint##nbits##_t *dstg = (uint##nbits##_t *)grow; \
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uint##nbits##_t *dstb = (uint##nbits##_t *)brow; \
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uint##nbits##_t *dstr = (uint##nbits##_t *)rrow; \
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uint##nbits##_t *dsta = (uint##nbits##_t *)arow; \
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const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow; \
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const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow; \
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const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow; \
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const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow; \
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for (x = 0; x < in->width; x++) { \
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const struct rgbvec scaled_rgb = {srcr[x] * scale_r, \
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srcg[x] * scale_g, \
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srcb[x] * scale_b}; \
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struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \
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dstr[x] = av_clip_uintp2(vec.r * (float)((1<<depth) - 1), depth); \
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dstg[x] = av_clip_uintp2(vec.g * (float)((1<<depth) - 1), depth); \
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dstb[x] = av_clip_uintp2(vec.b * (float)((1<<depth) - 1), depth); \
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if (!direct && in->linesize[3]) \
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dsta[x] = srca[x]; \
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} \
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grow += out->linesize[0]; \
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brow += out->linesize[1]; \
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rrow += out->linesize[2]; \
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arow += out->linesize[3]; \
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srcgrow += in->linesize[0]; \
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srcbrow += in->linesize[1]; \
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srcrrow += in->linesize[2]; \
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srcarow += in->linesize[3]; \
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} \
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return 0; \
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}
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DEFINE_INTERP_FUNC_PLANAR(nearest, 8, 8)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 8, 8)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 8, 8)
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DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 9)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 9)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 9)
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DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 10)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 10)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 10)
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DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 12)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 12)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 12)
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DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 14)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 14)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 14)
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DEFINE_INTERP_FUNC_PLANAR(nearest, 16, 16)
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DEFINE_INTERP_FUNC_PLANAR(trilinear, 16, 16)
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DEFINE_INTERP_FUNC_PLANAR(tetrahedral, 16, 16)
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#define DEFINE_INTERP_FUNC(name, nbits) \
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static int interp_##nbits##_##name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
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{ \
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int x, y; \
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const LUT3DContext *lut3d = ctx->priv; \
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const ThreadData *td = arg; \
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const AVFrame *in = td->in; \
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const AVFrame *out = td->out; \
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const int direct = out == in; \
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const int step = lut3d->step; \
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const uint8_t r = lut3d->rgba_map[R]; \
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const uint8_t g = lut3d->rgba_map[G]; \
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const uint8_t b = lut3d->rgba_map[B]; \
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const uint8_t a = lut3d->rgba_map[A]; \
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const int slice_start = (in->height * jobnr ) / nb_jobs; \
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const int slice_end = (in->height * (jobnr+1)) / nb_jobs; \
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uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; \
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const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0]; \
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const float scale_r = (lut3d->scale.r / ((1<<nbits) - 1)) * (lut3d->lutsize - 1); \
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const float scale_g = (lut3d->scale.g / ((1<<nbits) - 1)) * (lut3d->lutsize - 1); \
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const float scale_b = (lut3d->scale.b / ((1<<nbits) - 1)) * (lut3d->lutsize - 1); \
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\
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for (y = slice_start; y < slice_end; y++) { \
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uint##nbits##_t *dst = (uint##nbits##_t *)dstrow; \
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const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow; \
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for (x = 0; x < in->width * step; x += step) { \
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const struct rgbvec scaled_rgb = {src[x + r] * scale_r, \
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src[x + g] * scale_g, \
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src[x + b] * scale_b}; \
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struct rgbvec vec = interp_##name(lut3d, &scaled_rgb); \
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dst[x + r] = av_clip_uint##nbits(vec.r * (float)((1<<nbits) - 1)); \
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dst[x + g] = av_clip_uint##nbits(vec.g * (float)((1<<nbits) - 1)); \
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|
dst[x + b] = av_clip_uint##nbits(vec.b * (float)((1<<nbits) - 1)); \
|
|
if (!direct && step == 4) \
|
|
dst[x + a] = src[x + a]; \
|
|
} \
|
|
dstrow += out->linesize[0]; \
|
|
srcrow += in ->linesize[0]; \
|
|
} \
|
|
return 0; \
|
|
}
|
|
|
|
DEFINE_INTERP_FUNC(nearest, 8)
|
|
DEFINE_INTERP_FUNC(trilinear, 8)
|
|
DEFINE_INTERP_FUNC(tetrahedral, 8)
|
|
|
|
DEFINE_INTERP_FUNC(nearest, 16)
|
|
DEFINE_INTERP_FUNC(trilinear, 16)
|
|
DEFINE_INTERP_FUNC(tetrahedral, 16)
|
|
|
|
#define MAX_LINE_SIZE 512
|
|
|
|
static int skip_line(const char *p)
|
|
{
|
|
while (*p && av_isspace(*p))
|
|
p++;
|
|
return !*p || *p == '#';
|
|
}
|
|
|
|
#define NEXT_LINE(loop_cond) do { \
|
|
if (!fgets(line, sizeof(line), f)) { \
|
|
av_log(ctx, AV_LOG_ERROR, "Unexpected EOF\n"); \
|
|
return AVERROR_INVALIDDATA; \
|
|
} \
|
|
} while (loop_cond)
|
|
|
|
static int allocate_3dlut(AVFilterContext *ctx, int lutsize)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
|
|
if (lutsize < 2 || lutsize > MAX_LEVEL) {
|
|
av_log(ctx, AV_LOG_ERROR, "Too large or invalid 3D LUT size\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
av_freep(&lut3d->lut);
|
|
lut3d->lut = av_malloc_array(lutsize * lutsize * lutsize, sizeof(*lut3d->lut));
|
|
if (!lut3d->lut)
|
|
return AVERROR(ENOMEM);
|
|
lut3d->lutsize = lutsize;
|
|
lut3d->lutsize2 = lutsize * lutsize;
|
|
return 0;
|
|
}
|
|
|
|
/* Basically r g and b float values on each line, with a facultative 3DLUTSIZE
|
|
* directive; seems to be generated by Davinci */
|
|
static int parse_dat(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
char line[MAX_LINE_SIZE];
|
|
int ret, i, j, k, size, size2;
|
|
|
|
lut3d->lutsize = size = 33;
|
|
size2 = size * size;
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (!strncmp(line, "3DLUTSIZE ", 10)) {
|
|
size = strtol(line + 10, NULL, 0);
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
}
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (k = 0; k < size; k++) {
|
|
for (j = 0; j < size; j++) {
|
|
for (i = 0; i < size; i++) {
|
|
struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
|
|
if (k != 0 || j != 0 || i != 0)
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Iridas format */
|
|
static int parse_cube(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
char line[MAX_LINE_SIZE];
|
|
float min[3] = {0.0, 0.0, 0.0};
|
|
float max[3] = {1.0, 1.0, 1.0};
|
|
|
|
while (fgets(line, sizeof(line), f)) {
|
|
if (!strncmp(line, "LUT_3D_SIZE", 11)) {
|
|
int ret, i, j, k;
|
|
const int size = strtol(line + 12, NULL, 0);
|
|
const int size2 = size * size;
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (k = 0; k < size; k++) {
|
|
for (j = 0; j < size; j++) {
|
|
for (i = 0; i < size; i++) {
|
|
struct rgbvec *vec = &lut3d->lut[i * size2 + j * size + k];
|
|
|
|
do {
|
|
try_again:
|
|
NEXT_LINE(0);
|
|
if (!strncmp(line, "DOMAIN_", 7)) {
|
|
float *vals = NULL;
|
|
if (!strncmp(line + 7, "MIN ", 4)) vals = min;
|
|
else if (!strncmp(line + 7, "MAX ", 4)) vals = max;
|
|
if (!vals)
|
|
return AVERROR_INVALIDDATA;
|
|
av_sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2);
|
|
av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",
|
|
min[0], min[1], min[2], max[0], max[1], max[2]);
|
|
goto try_again;
|
|
} else if (!strncmp(line, "TITLE", 5)) {
|
|
goto try_again;
|
|
}
|
|
} while (skip_line(line));
|
|
if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
lut3d->scale.r = av_clipf(1. / (max[0] - min[0]), 0.f, 1.f);
|
|
lut3d->scale.g = av_clipf(1. / (max[1] - min[1]), 0.f, 1.f);
|
|
lut3d->scale.b = av_clipf(1. / (max[2] - min[2]), 0.f, 1.f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Assume 17x17x17 LUT with a 16-bit depth
|
|
* FIXME: it seems there are various 3dl formats */
|
|
static int parse_3dl(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
char line[MAX_LINE_SIZE];
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
int ret, i, j, k;
|
|
const int size = 17;
|
|
const int size2 = 17 * 17;
|
|
const float scale = 16*16*16;
|
|
|
|
lut3d->lutsize = size;
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
for (k = 0; k < size; k++) {
|
|
for (j = 0; j < size; j++) {
|
|
for (i = 0; i < size; i++) {
|
|
int r, g, b;
|
|
struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%d %d %d", &r, &g, &b) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
vec->r = r / scale;
|
|
vec->g = g / scale;
|
|
vec->b = b / scale;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Pandora format */
|
|
static int parse_m3d(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
float scale;
|
|
int ret, i, j, k, size, size2, in = -1, out = -1;
|
|
char line[MAX_LINE_SIZE];
|
|
uint8_t rgb_map[3] = {0, 1, 2};
|
|
|
|
while (fgets(line, sizeof(line), f)) {
|
|
if (!strncmp(line, "in", 2)) in = strtol(line + 2, NULL, 0);
|
|
else if (!strncmp(line, "out", 3)) out = strtol(line + 3, NULL, 0);
|
|
else if (!strncmp(line, "values", 6)) {
|
|
const char *p = line + 6;
|
|
#define SET_COLOR(id) do { \
|
|
while (av_isspace(*p)) \
|
|
p++; \
|
|
switch (*p) { \
|
|
case 'r': rgb_map[id] = 0; break; \
|
|
case 'g': rgb_map[id] = 1; break; \
|
|
case 'b': rgb_map[id] = 2; break; \
|
|
} \
|
|
while (*p && !av_isspace(*p)) \
|
|
p++; \
|
|
} while (0)
|
|
SET_COLOR(0);
|
|
SET_COLOR(1);
|
|
SET_COLOR(2);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (in == -1 || out == -1) {
|
|
av_log(ctx, AV_LOG_ERROR, "in and out must be defined\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
if (in < 2 || out < 2 ||
|
|
in > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL ||
|
|
out > MAX_LEVEL*MAX_LEVEL*MAX_LEVEL) {
|
|
av_log(ctx, AV_LOG_ERROR, "invalid in (%d) or out (%d)\n", in, out);
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
for (size = 1; size*size*size < in; size++);
|
|
lut3d->lutsize = size;
|
|
size2 = size * size;
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
scale = 1. / (out - 1);
|
|
|
|
for (k = 0; k < size; k++) {
|
|
for (j = 0; j < size; j++) {
|
|
for (i = 0; i < size; i++) {
|
|
struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
|
|
float val[3];
|
|
|
|
NEXT_LINE(0);
|
|
if (av_sscanf(line, "%f %f %f", val, val + 1, val + 2) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
vec->r = val[rgb_map[0]] * scale;
|
|
vec->g = val[rgb_map[1]] * scale;
|
|
vec->b = val[rgb_map[2]] * scale;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int parse_cinespace(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
char line[MAX_LINE_SIZE];
|
|
float in_min[3] = {0.0, 0.0, 0.0};
|
|
float in_max[3] = {1.0, 1.0, 1.0};
|
|
float out_min[3] = {0.0, 0.0, 0.0};
|
|
float out_max[3] = {1.0, 1.0, 1.0};
|
|
int ret, inside_metadata = 0, size, size2;
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (strncmp(line, "CSPLUTV100", 10)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Not cineSpace LUT format\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (strncmp(line, "3D", 2)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Not 3D LUT format\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
while (1) {
|
|
NEXT_LINE(skip_line(line));
|
|
|
|
if (!strncmp(line, "BEGIN METADATA", 14)) {
|
|
inside_metadata = 1;
|
|
continue;
|
|
}
|
|
if (!strncmp(line, "END METADATA", 12)) {
|
|
inside_metadata = 0;
|
|
continue;
|
|
}
|
|
if (inside_metadata == 0) {
|
|
int size_r, size_g, size_b;
|
|
|
|
for (int i = 0; i < 3; i++) {
|
|
int npoints = strtol(line, NULL, 0);
|
|
|
|
if (npoints != 2) {
|
|
av_log(ctx, AV_LOG_ERROR, "Unsupported number of pre-lut points.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f", &in_min[i], &in_max[i]) != 2)
|
|
return AVERROR_INVALIDDATA;
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f", &out_min[i], &out_max[i]) != 2)
|
|
return AVERROR_INVALIDDATA;
|
|
NEXT_LINE(skip_line(line));
|
|
}
|
|
|
|
if (av_sscanf(line, "%d %d %d", &size_r, &size_g, &size_b) != 3)
|
|
return AVERROR(EINVAL);
|
|
if (size_r != size_g || size_r != size_b) {
|
|
av_log(ctx, AV_LOG_ERROR, "Unsupported size combination: %dx%dx%d.\n", size_r, size_g, size_b);
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
size = size_r;
|
|
size2 = size * size;
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (int k = 0; k < size; k++) {
|
|
for (int j = 0; j < size; j++) {
|
|
for (int i = 0; i < size; i++) {
|
|
struct rgbvec *vec = &lut3d->lut[i * size2 + j * size + k];
|
|
if (k != 0 || j != 0 || i != 0)
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f %f", &vec->r, &vec->g, &vec->b) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
vec->r *= out_max[0] - out_min[0];
|
|
vec->g *= out_max[1] - out_min[1];
|
|
vec->b *= out_max[2] - out_min[2];
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
lut3d->scale.r = av_clipf(1. / (in_max[0] - in_min[0]), 0.f, 1.f);
|
|
lut3d->scale.g = av_clipf(1. / (in_max[1] - in_min[1]), 0.f, 1.f);
|
|
lut3d->scale.b = av_clipf(1. / (in_max[2] - in_min[2]), 0.f, 1.f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int set_identity_matrix(AVFilterContext *ctx, int size)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
int ret, i, j, k;
|
|
const int size2 = size * size;
|
|
const float c = 1. / (size - 1);
|
|
|
|
ret = allocate_3dlut(ctx, size);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (k = 0; k < size; k++) {
|
|
for (j = 0; j < size; j++) {
|
|
for (i = 0; i < size; i++) {
|
|
struct rgbvec *vec = &lut3d->lut[k * size2 + j * size + i];
|
|
vec->r = k * c;
|
|
vec->g = j * c;
|
|
vec->b = i * c;
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum AVPixelFormat pix_fmts[] = {
|
|
AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
|
|
AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
|
|
AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
|
|
AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
|
|
AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
|
|
AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
|
|
AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
|
|
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
|
|
AV_PIX_FMT_GBRP9,
|
|
AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
|
|
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,
|
|
AV_PIX_FMT_GBRP14,
|
|
AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
|
|
if (!fmts_list)
|
|
return AVERROR(ENOMEM);
|
|
return ff_set_common_formats(ctx, fmts_list);
|
|
}
|
|
|
|
static int config_input(AVFilterLink *inlink)
|
|
{
|
|
int depth, is16bit, planar;
|
|
LUT3DContext *lut3d = inlink->dst->priv;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
|
depth = desc->comp[0].depth;
|
|
is16bit = desc->comp[0].depth > 8;
|
|
planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
|
|
ff_fill_rgba_map(lut3d->rgba_map, inlink->format);
|
|
lut3d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
|
|
|
|
#define SET_FUNC(name) do { \
|
|
if (planar) { \
|
|
switch (depth) { \
|
|
case 8: lut3d->interp = interp_8_##name##_p8; break; \
|
|
case 9: lut3d->interp = interp_16_##name##_p9; break; \
|
|
case 10: lut3d->interp = interp_16_##name##_p10; break; \
|
|
case 12: lut3d->interp = interp_16_##name##_p12; break; \
|
|
case 14: lut3d->interp = interp_16_##name##_p14; break; \
|
|
case 16: lut3d->interp = interp_16_##name##_p16; break; \
|
|
} \
|
|
} else if (is16bit) { lut3d->interp = interp_16_##name; \
|
|
} else { lut3d->interp = interp_8_##name; } \
|
|
} while (0)
|
|
|
|
switch (lut3d->interpolation) {
|
|
case INTERPOLATE_NEAREST: SET_FUNC(nearest); break;
|
|
case INTERPOLATE_TRILINEAR: SET_FUNC(trilinear); break;
|
|
case INTERPOLATE_TETRAHEDRAL: SET_FUNC(tetrahedral); break;
|
|
default:
|
|
av_assert0(0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static AVFrame *apply_lut(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
|
AVFrame *out;
|
|
ThreadData td;
|
|
|
|
if (av_frame_is_writable(in)) {
|
|
out = in;
|
|
} else {
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out) {
|
|
av_frame_free(&in);
|
|
return NULL;
|
|
}
|
|
av_frame_copy_props(out, in);
|
|
}
|
|
|
|
td.in = in;
|
|
td.out = out;
|
|
ctx->internal->execute(ctx, lut3d->interp, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
|
|
|
|
if (out != in)
|
|
av_frame_free(&in);
|
|
|
|
return out;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
|
AVFrame *out = apply_lut(inlink, in);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
#if CONFIG_LUT3D_FILTER
|
|
static const AVOption lut3d_options[] = {
|
|
{ "file", "set 3D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
|
|
COMMON_OPTIONS
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(lut3d);
|
|
|
|
static av_cold int lut3d_init(AVFilterContext *ctx)
|
|
{
|
|
int ret;
|
|
FILE *f;
|
|
const char *ext;
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
|
|
lut3d->scale.r = lut3d->scale.g = lut3d->scale.b = 1.f;
|
|
|
|
if (!lut3d->file) {
|
|
return set_identity_matrix(ctx, 32);
|
|
}
|
|
|
|
f = av_fopen_utf8(lut3d->file, "r");
|
|
if (!f) {
|
|
ret = AVERROR(errno);
|
|
av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut3d->file, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
ext = strrchr(lut3d->file, '.');
|
|
if (!ext) {
|
|
av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto end;
|
|
}
|
|
ext++;
|
|
|
|
if (!av_strcasecmp(ext, "dat")) {
|
|
ret = parse_dat(ctx, f);
|
|
} else if (!av_strcasecmp(ext, "3dl")) {
|
|
ret = parse_3dl(ctx, f);
|
|
} else if (!av_strcasecmp(ext, "cube")) {
|
|
ret = parse_cube(ctx, f);
|
|
} else if (!av_strcasecmp(ext, "m3d")) {
|
|
ret = parse_m3d(ctx, f);
|
|
} else if (!av_strcasecmp(ext, "csp")) {
|
|
ret = parse_cinespace(ctx, f);
|
|
} else {
|
|
av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!ret && !lut3d->lutsize) {
|
|
av_log(ctx, AV_LOG_ERROR, "3D LUT is empty\n");
|
|
ret = AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
end:
|
|
fclose(f);
|
|
return ret;
|
|
}
|
|
|
|
static av_cold void lut3d_uninit(AVFilterContext *ctx)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
|
|
av_freep(&lut3d->lut);
|
|
}
|
|
|
|
static const AVFilterPad lut3d_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
.config_props = config_input,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad lut3d_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_lut3d = {
|
|
.name = "lut3d",
|
|
.description = NULL_IF_CONFIG_SMALL("Adjust colors using a 3D LUT."),
|
|
.priv_size = sizeof(LUT3DContext),
|
|
.init = lut3d_init,
|
|
.uninit = lut3d_uninit,
|
|
.query_formats = query_formats,
|
|
.inputs = lut3d_inputs,
|
|
.outputs = lut3d_outputs,
|
|
.priv_class = &lut3d_class,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_HALDCLUT_FILTER
|
|
|
|
static void update_clut_packed(LUT3DContext *lut3d, const AVFrame *frame)
|
|
{
|
|
const uint8_t *data = frame->data[0];
|
|
const int linesize = frame->linesize[0];
|
|
const int w = lut3d->clut_width;
|
|
const int step = lut3d->clut_step;
|
|
const uint8_t *rgba_map = lut3d->clut_rgba_map;
|
|
const int level = lut3d->lutsize;
|
|
const int level2 = lut3d->lutsize2;
|
|
|
|
#define LOAD_CLUT(nbits) do { \
|
|
int i, j, k, x = 0, y = 0; \
|
|
\
|
|
for (k = 0; k < level; k++) { \
|
|
for (j = 0; j < level; j++) { \
|
|
for (i = 0; i < level; i++) { \
|
|
const uint##nbits##_t *src = (const uint##nbits##_t *) \
|
|
(data + y*linesize + x*step); \
|
|
struct rgbvec *vec = &lut3d->lut[i * level2 + j * level + k]; \
|
|
vec->r = src[rgba_map[0]] / (float)((1<<(nbits)) - 1); \
|
|
vec->g = src[rgba_map[1]] / (float)((1<<(nbits)) - 1); \
|
|
vec->b = src[rgba_map[2]] / (float)((1<<(nbits)) - 1); \
|
|
if (++x == w) { \
|
|
x = 0; \
|
|
y++; \
|
|
} \
|
|
} \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
switch (lut3d->clut_bits) {
|
|
case 8: LOAD_CLUT(8); break;
|
|
case 16: LOAD_CLUT(16); break;
|
|
}
|
|
}
|
|
|
|
static void update_clut_planar(LUT3DContext *lut3d, const AVFrame *frame)
|
|
{
|
|
const uint8_t *datag = frame->data[0];
|
|
const uint8_t *datab = frame->data[1];
|
|
const uint8_t *datar = frame->data[2];
|
|
const int glinesize = frame->linesize[0];
|
|
const int blinesize = frame->linesize[1];
|
|
const int rlinesize = frame->linesize[2];
|
|
const int w = lut3d->clut_width;
|
|
const int level = lut3d->lutsize;
|
|
const int level2 = lut3d->lutsize2;
|
|
|
|
#define LOAD_CLUT_PLANAR(nbits, depth) do { \
|
|
int i, j, k, x = 0, y = 0; \
|
|
\
|
|
for (k = 0; k < level; k++) { \
|
|
for (j = 0; j < level; j++) { \
|
|
for (i = 0; i < level; i++) { \
|
|
const uint##nbits##_t *gsrc = (const uint##nbits##_t *) \
|
|
(datag + y*glinesize); \
|
|
const uint##nbits##_t *bsrc = (const uint##nbits##_t *) \
|
|
(datab + y*blinesize); \
|
|
const uint##nbits##_t *rsrc = (const uint##nbits##_t *) \
|
|
(datar + y*rlinesize); \
|
|
struct rgbvec *vec = &lut3d->lut[i * level2 + j * level + k]; \
|
|
vec->r = gsrc[x] / (float)((1<<(depth)) - 1); \
|
|
vec->g = bsrc[x] / (float)((1<<(depth)) - 1); \
|
|
vec->b = rsrc[x] / (float)((1<<(depth)) - 1); \
|
|
if (++x == w) { \
|
|
x = 0; \
|
|
y++; \
|
|
} \
|
|
} \
|
|
} \
|
|
} \
|
|
} while (0)
|
|
|
|
switch (lut3d->clut_bits) {
|
|
case 8: LOAD_CLUT_PLANAR(8, 8); break;
|
|
case 9: LOAD_CLUT_PLANAR(16, 9); break;
|
|
case 10: LOAD_CLUT_PLANAR(16, 10); break;
|
|
case 12: LOAD_CLUT_PLANAR(16, 12); break;
|
|
case 14: LOAD_CLUT_PLANAR(16, 14); break;
|
|
case 16: LOAD_CLUT_PLANAR(16, 16); break;
|
|
}
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
int ret;
|
|
|
|
ret = ff_framesync_init_dualinput(&lut3d->fs, ctx);
|
|
if (ret < 0)
|
|
return ret;
|
|
outlink->w = ctx->inputs[0]->w;
|
|
outlink->h = ctx->inputs[0]->h;
|
|
outlink->time_base = ctx->inputs[0]->time_base;
|
|
if ((ret = ff_framesync_configure(&lut3d->fs)) < 0)
|
|
return ret;
|
|
return 0;
|
|
}
|
|
|
|
static int activate(AVFilterContext *ctx)
|
|
{
|
|
LUT3DContext *s = ctx->priv;
|
|
return ff_framesync_activate(&s->fs);
|
|
}
|
|
|
|
static int config_clut(AVFilterLink *inlink)
|
|
{
|
|
int size, level, w, h;
|
|
AVFilterContext *ctx = inlink->dst;
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
|
av_assert0(desc);
|
|
|
|
lut3d->clut_bits = desc->comp[0].depth;
|
|
lut3d->clut_planar = av_pix_fmt_count_planes(inlink->format) > 1;
|
|
|
|
lut3d->clut_step = av_get_padded_bits_per_pixel(desc) >> 3;
|
|
ff_fill_rgba_map(lut3d->clut_rgba_map, inlink->format);
|
|
|
|
if (inlink->w > inlink->h)
|
|
av_log(ctx, AV_LOG_INFO, "Padding on the right (%dpx) of the "
|
|
"Hald CLUT will be ignored\n", inlink->w - inlink->h);
|
|
else if (inlink->w < inlink->h)
|
|
av_log(ctx, AV_LOG_INFO, "Padding at the bottom (%dpx) of the "
|
|
"Hald CLUT will be ignored\n", inlink->h - inlink->w);
|
|
lut3d->clut_width = w = h = FFMIN(inlink->w, inlink->h);
|
|
|
|
for (level = 1; level*level*level < w; level++);
|
|
size = level*level*level;
|
|
if (size != w) {
|
|
av_log(ctx, AV_LOG_WARNING, "The Hald CLUT width does not match the level\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
av_assert0(w == h && w == size);
|
|
level *= level;
|
|
if (level > MAX_LEVEL) {
|
|
const int max_clut_level = sqrt(MAX_LEVEL);
|
|
const int max_clut_size = max_clut_level*max_clut_level*max_clut_level;
|
|
av_log(ctx, AV_LOG_ERROR, "Too large Hald CLUT "
|
|
"(maximum level is %d, or %dx%d CLUT)\n",
|
|
max_clut_level, max_clut_size, max_clut_size);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
return allocate_3dlut(ctx, level);
|
|
}
|
|
|
|
static int update_apply_clut(FFFrameSync *fs)
|
|
{
|
|
AVFilterContext *ctx = fs->parent;
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
AVFrame *master, *second, *out;
|
|
int ret;
|
|
|
|
ret = ff_framesync_dualinput_get(fs, &master, &second);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (!second)
|
|
return ff_filter_frame(ctx->outputs[0], master);
|
|
if (lut3d->clut_planar)
|
|
update_clut_planar(ctx->priv, second);
|
|
else
|
|
update_clut_packed(ctx->priv, second);
|
|
out = apply_lut(inlink, master);
|
|
return ff_filter_frame(ctx->outputs[0], out);
|
|
}
|
|
|
|
static av_cold int haldclut_init(AVFilterContext *ctx)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
lut3d->scale.r = lut3d->scale.g = lut3d->scale.b = 1.f;
|
|
lut3d->fs.on_event = update_apply_clut;
|
|
return 0;
|
|
}
|
|
|
|
static av_cold void haldclut_uninit(AVFilterContext *ctx)
|
|
{
|
|
LUT3DContext *lut3d = ctx->priv;
|
|
ff_framesync_uninit(&lut3d->fs);
|
|
av_freep(&lut3d->lut);
|
|
}
|
|
|
|
static const AVOption haldclut_options[] = {
|
|
COMMON_OPTIONS
|
|
};
|
|
|
|
FRAMESYNC_DEFINE_CLASS(haldclut, LUT3DContext, fs);
|
|
|
|
static const AVFilterPad haldclut_inputs[] = {
|
|
{
|
|
.name = "main",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_input,
|
|
},{
|
|
.name = "clut",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_clut,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad haldclut_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_haldclut = {
|
|
.name = "haldclut",
|
|
.description = NULL_IF_CONFIG_SMALL("Adjust colors using a Hald CLUT."),
|
|
.priv_size = sizeof(LUT3DContext),
|
|
.preinit = haldclut_framesync_preinit,
|
|
.init = haldclut_init,
|
|
.uninit = haldclut_uninit,
|
|
.query_formats = query_formats,
|
|
.activate = activate,
|
|
.inputs = haldclut_inputs,
|
|
.outputs = haldclut_outputs,
|
|
.priv_class = &haldclut_class,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_LUT1D_FILTER
|
|
|
|
enum interp_1d_mode {
|
|
INTERPOLATE_1D_NEAREST,
|
|
INTERPOLATE_1D_LINEAR,
|
|
INTERPOLATE_1D_CUBIC,
|
|
INTERPOLATE_1D_COSINE,
|
|
INTERPOLATE_1D_SPLINE,
|
|
NB_INTERP_1D_MODE
|
|
};
|
|
|
|
#define MAX_1D_LEVEL 65536
|
|
|
|
typedef struct LUT1DContext {
|
|
const AVClass *class;
|
|
char *file;
|
|
int interpolation; ///<interp_1d_mode
|
|
struct rgbvec scale;
|
|
uint8_t rgba_map[4];
|
|
int step;
|
|
float lut[3][MAX_1D_LEVEL];
|
|
int lutsize;
|
|
avfilter_action_func *interp;
|
|
} LUT1DContext;
|
|
|
|
#undef OFFSET
|
|
#define OFFSET(x) offsetof(LUT1DContext, x)
|
|
|
|
static void set_identity_matrix_1d(LUT1DContext *lut1d, int size)
|
|
{
|
|
const float c = 1. / (size - 1);
|
|
int i;
|
|
|
|
lut1d->lutsize = size;
|
|
for (i = 0; i < size; i++) {
|
|
lut1d->lut[0][i] = i * c;
|
|
lut1d->lut[1][i] = i * c;
|
|
lut1d->lut[2][i] = i * c;
|
|
}
|
|
}
|
|
|
|
static int parse_cinespace_1d(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT1DContext *lut1d = ctx->priv;
|
|
char line[MAX_LINE_SIZE];
|
|
float in_min[3] = {0.0, 0.0, 0.0};
|
|
float in_max[3] = {1.0, 1.0, 1.0};
|
|
float out_min[3] = {0.0, 0.0, 0.0};
|
|
float out_max[3] = {1.0, 1.0, 1.0};
|
|
int inside_metadata = 0, size;
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (strncmp(line, "CSPLUTV100", 10)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Not cineSpace LUT format\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (strncmp(line, "1D", 2)) {
|
|
av_log(ctx, AV_LOG_ERROR, "Not 1D LUT format\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
while (1) {
|
|
NEXT_LINE(skip_line(line));
|
|
|
|
if (!strncmp(line, "BEGIN METADATA", 14)) {
|
|
inside_metadata = 1;
|
|
continue;
|
|
}
|
|
if (!strncmp(line, "END METADATA", 12)) {
|
|
inside_metadata = 0;
|
|
continue;
|
|
}
|
|
if (inside_metadata == 0) {
|
|
for (int i = 0; i < 3; i++) {
|
|
int npoints = strtol(line, NULL, 0);
|
|
|
|
if (npoints != 2) {
|
|
av_log(ctx, AV_LOG_ERROR, "Unsupported number of pre-lut points.\n");
|
|
return AVERROR_PATCHWELCOME;
|
|
}
|
|
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f", &in_min[i], &in_max[i]) != 2)
|
|
return AVERROR_INVALIDDATA;
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f", &out_min[i], &out_max[i]) != 2)
|
|
return AVERROR_INVALIDDATA;
|
|
NEXT_LINE(skip_line(line));
|
|
}
|
|
|
|
size = strtol(line, NULL, 0);
|
|
|
|
if (size < 2 || size > MAX_1D_LEVEL) {
|
|
av_log(ctx, AV_LOG_ERROR, "Too large or invalid 1D LUT size\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
lut1d->lutsize = size;
|
|
|
|
for (int i = 0; i < size; i++) {
|
|
NEXT_LINE(skip_line(line));
|
|
if (av_sscanf(line, "%f %f %f", &lut1d->lut[0][i], &lut1d->lut[1][i], &lut1d->lut[2][i]) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
lut1d->lut[0][i] *= out_max[0] - out_min[0];
|
|
lut1d->lut[1][i] *= out_max[1] - out_min[1];
|
|
lut1d->lut[2][i] *= out_max[2] - out_min[2];
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
lut1d->scale.r = av_clipf(1. / (in_max[0] - in_min[0]), 0.f, 1.f);
|
|
lut1d->scale.g = av_clipf(1. / (in_max[1] - in_min[1]), 0.f, 1.f);
|
|
lut1d->scale.b = av_clipf(1. / (in_max[2] - in_min[2]), 0.f, 1.f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_cube_1d(AVFilterContext *ctx, FILE *f)
|
|
{
|
|
LUT1DContext *lut1d = ctx->priv;
|
|
char line[MAX_LINE_SIZE];
|
|
float min[3] = {0.0, 0.0, 0.0};
|
|
float max[3] = {1.0, 1.0, 1.0};
|
|
|
|
while (fgets(line, sizeof(line), f)) {
|
|
if (!strncmp(line, "LUT_1D_SIZE", 11)) {
|
|
const int size = strtol(line + 12, NULL, 0);
|
|
int i;
|
|
|
|
if (size < 2 || size > MAX_1D_LEVEL) {
|
|
av_log(ctx, AV_LOG_ERROR, "Too large or invalid 1D LUT size\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
lut1d->lutsize = size;
|
|
for (i = 0; i < size; i++) {
|
|
do {
|
|
try_again:
|
|
NEXT_LINE(0);
|
|
if (!strncmp(line, "DOMAIN_", 7)) {
|
|
float *vals = NULL;
|
|
if (!strncmp(line + 7, "MIN ", 4)) vals = min;
|
|
else if (!strncmp(line + 7, "MAX ", 4)) vals = max;
|
|
if (!vals)
|
|
return AVERROR_INVALIDDATA;
|
|
av_sscanf(line + 11, "%f %f %f", vals, vals + 1, vals + 2);
|
|
av_log(ctx, AV_LOG_DEBUG, "min: %f %f %f | max: %f %f %f\n",
|
|
min[0], min[1], min[2], max[0], max[1], max[2]);
|
|
goto try_again;
|
|
} else if (!strncmp(line, "LUT_1D_INPUT_RANGE ", 19)) {
|
|
av_sscanf(line + 19, "%f %f", min, max);
|
|
min[1] = min[2] = min[0];
|
|
max[1] = max[2] = max[0];
|
|
goto try_again;
|
|
} else if (!strncmp(line, "TITLE", 5)) {
|
|
goto try_again;
|
|
}
|
|
} while (skip_line(line));
|
|
if (av_sscanf(line, "%f %f %f", &lut1d->lut[0][i], &lut1d->lut[1][i], &lut1d->lut[2][i]) != 3)
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
lut1d->scale.r = av_clipf(1. / (max[0] - min[0]), 0.f, 1.f);
|
|
lut1d->scale.g = av_clipf(1. / (max[1] - min[1]), 0.f, 1.f);
|
|
lut1d->scale.b = av_clipf(1. / (max[2] - min[2]), 0.f, 1.f);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const AVOption lut1d_options[] = {
|
|
{ "file", "set 1D LUT file name", OFFSET(file), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
|
|
{ "interp", "select interpolation mode", OFFSET(interpolation), AV_OPT_TYPE_INT, {.i64=INTERPOLATE_1D_LINEAR}, 0, NB_INTERP_1D_MODE-1, FLAGS, "interp_mode" },
|
|
{ "nearest", "use values from the nearest defined points", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_NEAREST}, INT_MIN, INT_MAX, FLAGS, "interp_mode" },
|
|
{ "linear", "use values from the linear interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_LINEAR}, INT_MIN, INT_MAX, FLAGS, "interp_mode" },
|
|
{ "cosine", "use values from the cosine interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_COSINE}, INT_MIN, INT_MAX, FLAGS, "interp_mode" },
|
|
{ "cubic", "use values from the cubic interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_CUBIC}, INT_MIN, INT_MAX, FLAGS, "interp_mode" },
|
|
{ "spline", "use values from the spline interpolation", 0, AV_OPT_TYPE_CONST, {.i64=INTERPOLATE_1D_SPLINE}, INT_MIN, INT_MAX, FLAGS, "interp_mode" },
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(lut1d);
|
|
|
|
static inline float interp_1d_nearest(const LUT1DContext *lut1d,
|
|
int idx, const float s)
|
|
{
|
|
return lut1d->lut[idx][NEAR(s)];
|
|
}
|
|
|
|
#define NEXT1D(x) (FFMIN((int)(x) + 1, lut1d->lutsize - 1))
|
|
|
|
static inline float interp_1d_linear(const LUT1DContext *lut1d,
|
|
int idx, const float s)
|
|
{
|
|
const int prev = PREV(s);
|
|
const int next = NEXT1D(s);
|
|
const float d = s - prev;
|
|
const float p = lut1d->lut[idx][prev];
|
|
const float n = lut1d->lut[idx][next];
|
|
|
|
return lerpf(p, n, d);
|
|
}
|
|
|
|
static inline float interp_1d_cosine(const LUT1DContext *lut1d,
|
|
int idx, const float s)
|
|
{
|
|
const int prev = PREV(s);
|
|
const int next = NEXT1D(s);
|
|
const float d = s - prev;
|
|
const float p = lut1d->lut[idx][prev];
|
|
const float n = lut1d->lut[idx][next];
|
|
const float m = (1.f - cosf(d * M_PI)) * .5f;
|
|
|
|
return lerpf(p, n, m);
|
|
}
|
|
|
|
static inline float interp_1d_cubic(const LUT1DContext *lut1d,
|
|
int idx, const float s)
|
|
{
|
|
const int prev = PREV(s);
|
|
const int next = NEXT1D(s);
|
|
const float mu = s - prev;
|
|
float a0, a1, a2, a3, mu2;
|
|
|
|
float y0 = lut1d->lut[idx][FFMAX(prev - 1, 0)];
|
|
float y1 = lut1d->lut[idx][prev];
|
|
float y2 = lut1d->lut[idx][next];
|
|
float y3 = lut1d->lut[idx][FFMIN(next + 1, lut1d->lutsize - 1)];
|
|
|
|
|
|
mu2 = mu * mu;
|
|
a0 = y3 - y2 - y0 + y1;
|
|
a1 = y0 - y1 - a0;
|
|
a2 = y2 - y0;
|
|
a3 = y1;
|
|
|
|
return a0 * mu * mu2 + a1 * mu2 + a2 * mu + a3;
|
|
}
|
|
|
|
static inline float interp_1d_spline(const LUT1DContext *lut1d,
|
|
int idx, const float s)
|
|
{
|
|
const int prev = PREV(s);
|
|
const int next = NEXT1D(s);
|
|
const float x = s - prev;
|
|
float c0, c1, c2, c3;
|
|
|
|
float y0 = lut1d->lut[idx][FFMAX(prev - 1, 0)];
|
|
float y1 = lut1d->lut[idx][prev];
|
|
float y2 = lut1d->lut[idx][next];
|
|
float y3 = lut1d->lut[idx][FFMIN(next + 1, lut1d->lutsize - 1)];
|
|
|
|
c0 = y1;
|
|
c1 = .5f * (y2 - y0);
|
|
c2 = y0 - 2.5f * y1 + 2.f * y2 - .5f * y3;
|
|
c3 = .5f * (y3 - y0) + 1.5f * (y1 - y2);
|
|
|
|
return ((c3 * x + c2) * x + c1) * x + c0;
|
|
}
|
|
|
|
#define DEFINE_INTERP_FUNC_PLANAR_1D(name, nbits, depth) \
|
|
static int interp_1d_##nbits##_##name##_p##depth(AVFilterContext *ctx, \
|
|
void *arg, int jobnr, \
|
|
int nb_jobs) \
|
|
{ \
|
|
int x, y; \
|
|
const LUT1DContext *lut1d = ctx->priv; \
|
|
const ThreadData *td = arg; \
|
|
const AVFrame *in = td->in; \
|
|
const AVFrame *out = td->out; \
|
|
const int direct = out == in; \
|
|
const int slice_start = (in->height * jobnr ) / nb_jobs; \
|
|
const int slice_end = (in->height * (jobnr+1)) / nb_jobs; \
|
|
uint8_t *grow = out->data[0] + slice_start * out->linesize[0]; \
|
|
uint8_t *brow = out->data[1] + slice_start * out->linesize[1]; \
|
|
uint8_t *rrow = out->data[2] + slice_start * out->linesize[2]; \
|
|
uint8_t *arow = out->data[3] + slice_start * out->linesize[3]; \
|
|
const uint8_t *srcgrow = in->data[0] + slice_start * in->linesize[0]; \
|
|
const uint8_t *srcbrow = in->data[1] + slice_start * in->linesize[1]; \
|
|
const uint8_t *srcrrow = in->data[2] + slice_start * in->linesize[2]; \
|
|
const uint8_t *srcarow = in->data[3] + slice_start * in->linesize[3]; \
|
|
const float factor = (1 << depth) - 1; \
|
|
const float scale_r = (lut1d->scale.r / factor) * (lut1d->lutsize - 1); \
|
|
const float scale_g = (lut1d->scale.g / factor) * (lut1d->lutsize - 1); \
|
|
const float scale_b = (lut1d->scale.b / factor) * (lut1d->lutsize - 1); \
|
|
\
|
|
for (y = slice_start; y < slice_end; y++) { \
|
|
uint##nbits##_t *dstg = (uint##nbits##_t *)grow; \
|
|
uint##nbits##_t *dstb = (uint##nbits##_t *)brow; \
|
|
uint##nbits##_t *dstr = (uint##nbits##_t *)rrow; \
|
|
uint##nbits##_t *dsta = (uint##nbits##_t *)arow; \
|
|
const uint##nbits##_t *srcg = (const uint##nbits##_t *)srcgrow; \
|
|
const uint##nbits##_t *srcb = (const uint##nbits##_t *)srcbrow; \
|
|
const uint##nbits##_t *srcr = (const uint##nbits##_t *)srcrrow; \
|
|
const uint##nbits##_t *srca = (const uint##nbits##_t *)srcarow; \
|
|
for (x = 0; x < in->width; x++) { \
|
|
float r = srcr[x] * scale_r; \
|
|
float g = srcg[x] * scale_g; \
|
|
float b = srcb[x] * scale_b; \
|
|
r = interp_1d_##name(lut1d, 0, r); \
|
|
g = interp_1d_##name(lut1d, 1, g); \
|
|
b = interp_1d_##name(lut1d, 2, b); \
|
|
dstr[x] = av_clip_uintp2(r * factor, depth); \
|
|
dstg[x] = av_clip_uintp2(g * factor, depth); \
|
|
dstb[x] = av_clip_uintp2(b * factor, depth); \
|
|
if (!direct && in->linesize[3]) \
|
|
dsta[x] = srca[x]; \
|
|
} \
|
|
grow += out->linesize[0]; \
|
|
brow += out->linesize[1]; \
|
|
rrow += out->linesize[2]; \
|
|
arow += out->linesize[3]; \
|
|
srcgrow += in->linesize[0]; \
|
|
srcbrow += in->linesize[1]; \
|
|
srcrrow += in->linesize[2]; \
|
|
srcarow += in->linesize[3]; \
|
|
} \
|
|
return 0; \
|
|
}
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 8, 8)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 8, 8)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 8, 8)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 8, 8)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 8, 8)
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 9)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 9)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 9)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 9)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 9)
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 10)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 10)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 10)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 10)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 10)
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 12)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 12)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 12)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 12)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 12)
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 14)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 14)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 14)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 14)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 14)
|
|
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(nearest, 16, 16)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(linear, 16, 16)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cosine, 16, 16)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(cubic, 16, 16)
|
|
DEFINE_INTERP_FUNC_PLANAR_1D(spline, 16, 16)
|
|
|
|
#define DEFINE_INTERP_FUNC_1D(name, nbits) \
|
|
static int interp_1d_##nbits##_##name(AVFilterContext *ctx, void *arg, \
|
|
int jobnr, int nb_jobs) \
|
|
{ \
|
|
int x, y; \
|
|
const LUT1DContext *lut1d = ctx->priv; \
|
|
const ThreadData *td = arg; \
|
|
const AVFrame *in = td->in; \
|
|
const AVFrame *out = td->out; \
|
|
const int direct = out == in; \
|
|
const int step = lut1d->step; \
|
|
const uint8_t r = lut1d->rgba_map[R]; \
|
|
const uint8_t g = lut1d->rgba_map[G]; \
|
|
const uint8_t b = lut1d->rgba_map[B]; \
|
|
const uint8_t a = lut1d->rgba_map[A]; \
|
|
const int slice_start = (in->height * jobnr ) / nb_jobs; \
|
|
const int slice_end = (in->height * (jobnr+1)) / nb_jobs; \
|
|
uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; \
|
|
const uint8_t *srcrow = in ->data[0] + slice_start * in ->linesize[0]; \
|
|
const float factor = (1 << nbits) - 1; \
|
|
const float scale_r = (lut1d->scale.r / factor) * (lut1d->lutsize - 1); \
|
|
const float scale_g = (lut1d->scale.g / factor) * (lut1d->lutsize - 1); \
|
|
const float scale_b = (lut1d->scale.b / factor) * (lut1d->lutsize - 1); \
|
|
\
|
|
for (y = slice_start; y < slice_end; y++) { \
|
|
uint##nbits##_t *dst = (uint##nbits##_t *)dstrow; \
|
|
const uint##nbits##_t *src = (const uint##nbits##_t *)srcrow; \
|
|
for (x = 0; x < in->width * step; x += step) { \
|
|
float rr = src[x + r] * scale_r; \
|
|
float gg = src[x + g] * scale_g; \
|
|
float bb = src[x + b] * scale_b; \
|
|
rr = interp_1d_##name(lut1d, 0, rr); \
|
|
gg = interp_1d_##name(lut1d, 1, gg); \
|
|
bb = interp_1d_##name(lut1d, 2, bb); \
|
|
dst[x + r] = av_clip_uint##nbits(rr * factor); \
|
|
dst[x + g] = av_clip_uint##nbits(gg * factor); \
|
|
dst[x + b] = av_clip_uint##nbits(bb * factor); \
|
|
if (!direct && step == 4) \
|
|
dst[x + a] = src[x + a]; \
|
|
} \
|
|
dstrow += out->linesize[0]; \
|
|
srcrow += in ->linesize[0]; \
|
|
} \
|
|
return 0; \
|
|
}
|
|
|
|
DEFINE_INTERP_FUNC_1D(nearest, 8)
|
|
DEFINE_INTERP_FUNC_1D(linear, 8)
|
|
DEFINE_INTERP_FUNC_1D(cosine, 8)
|
|
DEFINE_INTERP_FUNC_1D(cubic, 8)
|
|
DEFINE_INTERP_FUNC_1D(spline, 8)
|
|
|
|
DEFINE_INTERP_FUNC_1D(nearest, 16)
|
|
DEFINE_INTERP_FUNC_1D(linear, 16)
|
|
DEFINE_INTERP_FUNC_1D(cosine, 16)
|
|
DEFINE_INTERP_FUNC_1D(cubic, 16)
|
|
DEFINE_INTERP_FUNC_1D(spline, 16)
|
|
|
|
static int config_input_1d(AVFilterLink *inlink)
|
|
{
|
|
int depth, is16bit, planar;
|
|
LUT1DContext *lut1d = inlink->dst->priv;
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
|
depth = desc->comp[0].depth;
|
|
is16bit = desc->comp[0].depth > 8;
|
|
planar = desc->flags & AV_PIX_FMT_FLAG_PLANAR;
|
|
ff_fill_rgba_map(lut1d->rgba_map, inlink->format);
|
|
lut1d->step = av_get_padded_bits_per_pixel(desc) >> (3 + is16bit);
|
|
|
|
#define SET_FUNC_1D(name) do { \
|
|
if (planar) { \
|
|
switch (depth) { \
|
|
case 8: lut1d->interp = interp_1d_8_##name##_p8; break; \
|
|
case 9: lut1d->interp = interp_1d_16_##name##_p9; break; \
|
|
case 10: lut1d->interp = interp_1d_16_##name##_p10; break; \
|
|
case 12: lut1d->interp = interp_1d_16_##name##_p12; break; \
|
|
case 14: lut1d->interp = interp_1d_16_##name##_p14; break; \
|
|
case 16: lut1d->interp = interp_1d_16_##name##_p16; break; \
|
|
} \
|
|
} else if (is16bit) { lut1d->interp = interp_1d_16_##name; \
|
|
} else { lut1d->interp = interp_1d_8_##name; } \
|
|
} while (0)
|
|
|
|
switch (lut1d->interpolation) {
|
|
case INTERPOLATE_1D_NEAREST: SET_FUNC_1D(nearest); break;
|
|
case INTERPOLATE_1D_LINEAR: SET_FUNC_1D(linear); break;
|
|
case INTERPOLATE_1D_COSINE: SET_FUNC_1D(cosine); break;
|
|
case INTERPOLATE_1D_CUBIC: SET_FUNC_1D(cubic); break;
|
|
case INTERPOLATE_1D_SPLINE: SET_FUNC_1D(spline); break;
|
|
default:
|
|
av_assert0(0);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold int lut1d_init(AVFilterContext *ctx)
|
|
{
|
|
int ret;
|
|
FILE *f;
|
|
const char *ext;
|
|
LUT1DContext *lut1d = ctx->priv;
|
|
|
|
lut1d->scale.r = lut1d->scale.g = lut1d->scale.b = 1.f;
|
|
|
|
if (!lut1d->file) {
|
|
set_identity_matrix_1d(lut1d, 32);
|
|
return 0;
|
|
}
|
|
|
|
f = av_fopen_utf8(lut1d->file, "r");
|
|
if (!f) {
|
|
ret = AVERROR(errno);
|
|
av_log(ctx, AV_LOG_ERROR, "%s: %s\n", lut1d->file, av_err2str(ret));
|
|
return ret;
|
|
}
|
|
|
|
ext = strrchr(lut1d->file, '.');
|
|
if (!ext) {
|
|
av_log(ctx, AV_LOG_ERROR, "Unable to guess the format from the extension\n");
|
|
ret = AVERROR_INVALIDDATA;
|
|
goto end;
|
|
}
|
|
ext++;
|
|
|
|
if (!av_strcasecmp(ext, "cube") || !av_strcasecmp(ext, "1dlut")) {
|
|
ret = parse_cube_1d(ctx, f);
|
|
} else if (!av_strcasecmp(ext, "csp")) {
|
|
ret = parse_cinespace_1d(ctx, f);
|
|
} else {
|
|
av_log(ctx, AV_LOG_ERROR, "Unrecognized '.%s' file type\n", ext);
|
|
ret = AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!ret && !lut1d->lutsize) {
|
|
av_log(ctx, AV_LOG_ERROR, "1D LUT is empty\n");
|
|
ret = AVERROR_INVALIDDATA;
|
|
}
|
|
|
|
end:
|
|
fclose(f);
|
|
return ret;
|
|
}
|
|
|
|
static AVFrame *apply_1d_lut(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
LUT1DContext *lut1d = ctx->priv;
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
|
AVFrame *out;
|
|
ThreadData td;
|
|
|
|
if (av_frame_is_writable(in)) {
|
|
out = in;
|
|
} else {
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out) {
|
|
av_frame_free(&in);
|
|
return NULL;
|
|
}
|
|
av_frame_copy_props(out, in);
|
|
}
|
|
|
|
td.in = in;
|
|
td.out = out;
|
|
ctx->internal->execute(ctx, lut1d->interp, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
|
|
|
|
if (out != in)
|
|
av_frame_free(&in);
|
|
|
|
return out;
|
|
}
|
|
|
|
static int filter_frame_1d(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterLink *outlink = inlink->dst->outputs[0];
|
|
AVFrame *out = apply_1d_lut(inlink, in);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
|
|
static const AVFilterPad lut1d_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame_1d,
|
|
.config_props = config_input_1d,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad lut1d_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_lut1d = {
|
|
.name = "lut1d",
|
|
.description = NULL_IF_CONFIG_SMALL("Adjust colors using a 1D LUT."),
|
|
.priv_size = sizeof(LUT1DContext),
|
|
.init = lut1d_init,
|
|
.query_formats = query_formats,
|
|
.inputs = lut1d_inputs,
|
|
.outputs = lut1d_outputs,
|
|
.priv_class = &lut1d_class,
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
|
};
|
|
#endif
|