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@@ -0,0 +1,480 @@
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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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+#include "libavutil/opt.h"
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+#include "libavutil/imgutils.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 "internal.h"
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+#include "video.h"
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+
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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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+
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+#define REDS 0
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+#define YELLOWS 1
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+#define GREENS 2
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+#define CYANS 3
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+#define BLUES 4
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+#define MAGENTAS 5
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+
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+#define RED (1 << REDS)
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+#define YELLOW (1 << YELLOWS)
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+#define GREEN (1 << GREENS)
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+#define CYAN (1 << CYANS)
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+#define BLUE (1 << BLUES)
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+#define MAGENTA (1 << MAGENTAS)
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+#define ALL 0x3F
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+
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+typedef struct HueSaturationContext {
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+ const AVClass *class;
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+
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+ float hue;
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+ float saturation;
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+ float intensity;
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+ float strength;
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+ float rlw, glw, blw;
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+ int lightness;
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+ int colors;
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+
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+ int depth;
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+ int planewidth[4];
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+ int planeheight[4];
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+
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+ float matrix[4][4];
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+ int64_t imatrix[4][4];
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+
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+ int bpp;
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+ int step;
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+ uint8_t rgba_map[4];
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+
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+ int (*do_slice[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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+} HueSaturationContext;
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+
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+#define DENOM 0x10000
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+
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+static inline void get_triplet(int64_t m[4][4], int *r, int *g, int *b)
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+{
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+ const int ir = *r, ig = *g, ib = *b;
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+
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+ *r = (ir * m[0][0] + ig * m[1][0] + ib * m[2][0] /*+ m[3][0]*/) >> 16;
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+ *g = (ir * m[0][1] + ig * m[1][1] + ib * m[2][1] /*+ m[3][1]*/) >> 16;
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+ *b = (ir * m[0][2] + ig * m[1][2] + ib * m[2][2] /*+ m[3][2]*/) >> 16;
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+}
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+
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+#define FAST_DIV255(x) ((((x) + 128) * 257) >> 16)
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+
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+static inline int lerpi8(int v0, int v1, int f, int max)
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+{
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+ return v0 + FAST_DIV255((v1 - v0) * f);
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+}
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+
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+static inline int lerpi16(int v0, int v1, int f, int max)
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+{
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+ return v0 + (v1 - v0) * (int64_t)f / max;
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+}
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+
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+#define HUESATURATION(name, type, clip, xall) \
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+static int do_slice_##name##_##xall(AVFilterContext *ctx, \
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+ void *arg, \
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+ int jobnr, int nb_jobs) \
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+{ \
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+ HueSaturationContext *s = ctx->priv; \
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+ AVFrame *frame = arg; \
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+ const int imax = (1 << name) - 1; \
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+ const float strength = s->strength; \
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+ const int colors = s->colors; \
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+ const int step = s->step; \
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+ const int width = frame->width; \
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+ const int process_h = frame->height; \
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+ const int slice_start = (process_h * jobnr ) / nb_jobs; \
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+ const int slice_end = (process_h * (jobnr+1)) / nb_jobs; \
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+ const int linesize = frame->linesize[0] / sizeof(type); \
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+ type *row = (type *)frame->data[0] + linesize * slice_start; \
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+ const uint8_t offset_r = s->rgba_map[R]; \
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+ const uint8_t offset_g = s->rgba_map[G]; \
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+ const uint8_t offset_b = s->rgba_map[B]; \
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+ type *dst_r = row + offset_r; \
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+ type *dst_g = row + offset_g; \
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+ type *dst_b = row + offset_b; \
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+ \
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+ for (int y = slice_start; y < slice_end; y++) { \
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+ for (int x = 0; x < width * step; x += step) { \
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+ int ir, ig, ib, ro, go, bo; \
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+ \
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+ ir = ro = dst_r[x]; \
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+ ig = go = dst_g[x]; \
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+ ib = bo = dst_b[x]; \
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+ \
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+ if (xall) { \
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+ get_triplet(s->imatrix, &ir, &ig, &ib); \
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+ } else { \
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+ const int min = FFMIN3(ir, ig, ib); \
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+ const int max = FFMAX3(ir, ig, ib); \
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+ const int flags = (ir == max) << REDS \
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+ | (ir == min) << CYANS \
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+ | (ig == max) << GREENS \
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+ | (ig == min) << MAGENTAS \
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+ | (ib == max) << BLUES \
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+ | (ib == min) << YELLOWS; \
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+ if (colors & flags) { \
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+ int f = 0; \
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+ \
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+ if (colors & RED) \
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+ f = FFMAX(f, ir - FFMAX(ig, ib)); \
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+ if (colors & YELLOW) \
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+ f = FFMAX(f, FFMIN(ir, ig) - ib); \
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+ if (colors & GREEN) \
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+ f = FFMAX(f, ig - FFMAX(ir, ib)); \
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+ if (colors & CYAN) \
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+ f = FFMAX(f, FFMIN(ig, ib) - ir); \
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+ if (colors & BLUE) \
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+ f = FFMAX(f, ib - FFMAX(ir, ig)); \
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+ if (colors & MAGENTA) \
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+ f = FFMAX(f, FFMIN(ir, ib) - ig); \
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+ f = FFMIN(f * strength, imax); \
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+ get_triplet(s->imatrix, &ir, &ig, &ib); \
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+ ir = lerpi##name(ro, ir, f, imax); \
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+ ig = lerpi##name(go, ig, f, imax); \
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+ ib = lerpi##name(bo, ib, f, imax); \
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+ } \
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+ } \
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+ \
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+ dst_r[x] = clip(ir); \
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+ dst_g[x] = clip(ig); \
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+ dst_b[x] = clip(ib); \
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+ } \
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+ \
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+ dst_r += linesize; \
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+ dst_g += linesize; \
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+ dst_b += linesize; \
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+ } \
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+ \
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+ return 0; \
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+}
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+
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+HUESATURATION(8, uint8_t, av_clip_uint8, 0)
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+HUESATURATION(16, uint16_t, av_clip_uint16, 0)
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+
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+HUESATURATION(8, uint8_t, av_clip_uint8, 1)
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+HUESATURATION(16, uint16_t, av_clip_uint16, 1)
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+
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+static void identity_matrix(float matrix[4][4])
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+{
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+ for (int y = 0; y < 4; y++)
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+ for (int x = 0; x < 4; x++)
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+ matrix[y][x] = y == x;
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+}
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+
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+static void matrix_multiply(float a[4][4], float b[4][4], float c[4][4])
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+{
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+ float temp[4][4];
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+
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+ for (int y = 0; y < 4; y++) {
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+ for (int x = 0; x < 4; x++) {
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+ temp[y][x] = b[y][0] * a[0][x]
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+ + b[y][1] * a[1][x]
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+ + b[y][2] * a[2][x]
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+ + b[y][3] * a[3][x];
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+ }
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+ }
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+
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+ for (int y = 0; y < 4; y++) {
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+ for (int x = 0; x < 4; x++)
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+ c[y][x] = temp[y][x];
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+ }
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+}
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+
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+static void colorscale_matrix(float matrix[4][4], float r, float g, float b)
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+{
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+ float temp[4][4];
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+
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+ temp[0][0] = r; temp[0][1] = 0.f; temp[0][2] = 0.f; temp[0][3] = 0.f;
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+ temp[1][0] = 0.f; temp[1][1] = g; temp[1][2] = 0.f; temp[1][3] = 0.f;
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+ temp[2][0] = 0.f; temp[2][1] = 0.f; temp[2][2] = b; temp[2][3] = 0.f;
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+ temp[3][0] = 0.f; temp[3][1] = 0.f; temp[3][2] = 0.f; temp[3][3] = 1.f;
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+
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+ matrix_multiply(temp, matrix, matrix);
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+}
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+
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+static void saturation_matrix(float matrix[4][4], float saturation,
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+ float rlw, float glw, float blw)
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+{
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+ float s = 1.f - saturation;
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+ float a = s * rlw + saturation;
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+ float b = s * rlw;
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+ float c = s * rlw;
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+ float d = s * glw;
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+ float e = s * glw + saturation;
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+ float f = s * glw;
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+ float g = s * blw;
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+ float h = s * blw;
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+ float i = s * blw + saturation;
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+ float m[4][4];
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+
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+ m[0][0] = a; m[0][1] = b; m[0][2] = c; m[0][3] = 0.f;
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+ m[1][0] = d; m[1][1] = e; m[1][2] = f; m[1][3] = 0.f;
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+ m[2][0] = g; m[2][1] = h; m[2][2] = i; m[2][3] = 0.f;
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+ m[3][0] = 0.f; m[3][1] = 0.f; m[3][2] = 0.f; m[3][3] = 1.f;
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+
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+ matrix_multiply(m, matrix, matrix);
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+}
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+
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+static void matrix2imatrix(float matrix[4][4], int64_t imatrix[4][4])
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+{
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+ for (int y = 0; y < 4; y++)
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+ for (int x = 0; x < 4; x++)
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+ imatrix[y][x] = lrintf(matrix[y][x] * DENOM);
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+}
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+
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+static void x_rotate_matrix(float matrix[4][4], float rs, float rc)
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+{
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+ float m[4][4];
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+
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+ m[0][0] = 1.f; m[0][1] = 0.f; m[0][2] = 0.f; m[0][3] = 0.f;
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+ m[1][0] = 0.f; m[1][1] = rc; m[1][2] = rs; m[1][3] = 0.f;
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+ m[2][0] = 0.f; m[2][1] = -rs; m[2][2] = rc; m[2][3] = 0.f;
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+ m[3][0] = 0.f; m[3][1] = 0.f; m[3][2] = 0.f; m[3][3] = 1.f;
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+
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+ matrix_multiply(m, matrix, matrix);
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+}
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+
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+static void y_rotate_matrix(float matrix[4][4], float rs, float rc)
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+{
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+ float m[4][4];
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+
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+ m[0][0] = rc; m[0][1] = 0.f; m[0][2] = -rs; m[0][3] = 0.f;
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+ m[1][0] = 0.f; m[1][1] = 1.f; m[1][2] = 0.f; m[1][3] = 0.f;
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+ m[2][0] = rs; m[2][1] = 0.f; m[2][2] = rc; m[2][3] = 0.f;
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+ m[3][0] = 0.f; m[3][1] = 0.f; m[3][2] = 0.f; m[3][3] = 1.f;
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+
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+ matrix_multiply(m, matrix, matrix);
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+}
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+
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+static void z_rotate_matrix(float matrix[4][4], float rs, float rc)
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+{
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+ float m[4][4];
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+
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+ m[0][0] = rc; m[0][1] = rs; m[0][2] = 0.f; m[0][3] = 0.f;
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+ m[1][0] = -rs; m[1][1] = rc; m[1][2] = 0.f; m[1][3] = 0.f;
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+ m[2][0] = 0.f; m[2][1] = 0.f; m[2][2] = 1.f; m[2][3] = 0.f;
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+ m[3][0] = 0.f; m[3][1] = 0.f; m[3][2] = 0.f; m[3][3] = 1.f;
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+
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+ matrix_multiply(m, matrix, matrix);
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+}
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+
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+static void z_shear_matrix(float matrix[4][4], float dx, float dy)
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+{
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+ float m[4][4];
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+
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+ m[0][0] = 1.f; m[0][1] = 0.f; m[0][2] = dx; m[0][3] = 0.f;
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+ m[1][0] = 0.f; m[1][1] = 1.f; m[1][2] = dy; m[1][3] = 0.f;
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+ m[2][0] = 0.f; m[2][1] = 0.f; m[2][2] = 1.f; m[2][3] = 0.f;
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+ m[3][0] = 0.f; m[3][1] = 0.f; m[3][2] = 0.f; m[3][3] = 1.f;
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+
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+ matrix_multiply(m, matrix, matrix);
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+}
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+
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+static void transform_point(float matrix[4][4],
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+ float x, float y, float z,
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+ float *tx, float *ty, float *tz)
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+{
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+ x = y;
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+ *tx = x;
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+ *tx = x * matrix[0][0] + y * matrix[1][0] + z * matrix[2][0] + matrix[3][0];
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+ *ty = x * matrix[0][1] + y * matrix[1][1] + z * matrix[2][1] + matrix[3][1];
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+ *tz = x * matrix[0][2] + y * matrix[1][2] + z * matrix[2][2] + matrix[3][2];
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+}
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+
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+static void hue_rotate_matrix(float matrix[4][4], float rotation,
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+ float rlw, float glw, float blw)
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+{
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+ float mag, lx, ly, lz;
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+ float xrs, xrc;
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+ float yrs, yrc;
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+ float zrs, zrc;
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+ float zsx, zsy;
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+
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+ mag = M_SQRT2;
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+ xrs = 1.f / mag;
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+ xrc = 1.f / mag;
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+ x_rotate_matrix(matrix, xrs, xrc);
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+
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+ mag = sqrtf(3.f);
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+ yrs = -1.f / mag;
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+ yrc = M_SQRT2 / mag;
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+ y_rotate_matrix(matrix, yrs, yrc);
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+
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+ transform_point(matrix, rlw, glw, blw, &lx, &ly, &lz);
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+ zsx = lx / lz;
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+ zsy = ly / lz;
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+ z_shear_matrix(matrix, zsx, zsy);
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+
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+ zrs = sinf(rotation * M_PI / 180.f);
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+ zrc = cosf(rotation * M_PI / 180.f);
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+ z_rotate_matrix(matrix, zrs, zrc);
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+
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+ z_shear_matrix(matrix, -zsx, -zsy);
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+
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+ y_rotate_matrix(matrix, -yrs, yrc);
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+ x_rotate_matrix(matrix, -xrs, xrc);
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+}
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+
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+static void shue_rotate_matrix(float m[4][4], float rotation)
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+{
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+ float xrs, xrc, yrs, yrc, zrs, zrc, mag;
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+
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+ mag = M_SQRT2;
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+ xrs = 1.f / mag;
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+ xrc = 1.f / mag;
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+ x_rotate_matrix(m, xrs, xrc);
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+
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+ mag = sqrtf(3.f);
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+ yrs = -1.f / mag;
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+ yrc = M_SQRT2 / mag;
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+ y_rotate_matrix(m, yrs, yrc);
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|
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+
|
|
|
+ zrs = sinf(rotation * M_PI / 180.f);
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|
|
+ zrc = cosf(rotation * M_PI / 180.f);
|
|
|
+ z_rotate_matrix(m, zrs, zrc);
|
|
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+
|
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|
+ y_rotate_matrix(m, -yrs, yrc);
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|
|
+ x_rotate_matrix(m, -xrs, xrc);
|
|
|
+}
|
|
|
+
|
|
|
+static void init_matrix(HueSaturationContext *s)
|
|
|
+{
|
|
|
+ float i = 1.f + s->intensity;
|
|
|
+ float saturation = 1.f + s->saturation;
|
|
|
+ float hue = s->hue;
|
|
|
+
|
|
|
+ identity_matrix(s->matrix);
|
|
|
+ colorscale_matrix(s->matrix, i, i, i);
|
|
|
+ saturation_matrix(s->matrix, saturation,
|
|
|
+ s->rlw, s->glw, s->blw);
|
|
|
+
|
|
|
+ if (s->lightness)
|
|
|
+ hue_rotate_matrix(s->matrix, hue,
|
|
|
+ s->rlw, s->glw, s->blw);
|
|
|
+ else
|
|
|
+ shue_rotate_matrix(s->matrix, hue);
|
|
|
+
|
|
|
+ matrix2imatrix(s->matrix, s->imatrix);
|
|
|
+}
|
|
|
+
|
|
|
+static int filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
|
+{
|
|
|
+ AVFilterContext *ctx = inlink->dst;
|
|
|
+ HueSaturationContext *s = ctx->priv;
|
|
|
+
|
|
|
+ init_matrix(s);
|
|
|
+
|
|
|
+ ff_filter_execute(ctx, s->do_slice[(s->strength >= 99.f) && (s->colors == ALL)], frame, NULL,
|
|
|
+ FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx)));
|
|
|
+
|
|
|
+ return ff_filter_frame(ctx->outputs[0], frame);
|
|
|
+}
|
|
|
+
|
|
|
+static const enum AVPixelFormat pixel_fmts[] = {
|
|
|
+ AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
|
|
|
+ AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
|
|
|
+ AV_PIX_FMT_ABGR, AV_PIX_FMT_ARGB,
|
|
|
+ AV_PIX_FMT_0BGR, AV_PIX_FMT_0RGB,
|
|
|
+ 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_NONE
|
|
|
+};
|
|
|
+
|
|
|
+static av_cold int config_input(AVFilterLink *inlink)
|
|
|
+{
|
|
|
+ AVFilterContext *ctx = inlink->dst;
|
|
|
+ HueSaturationContext *s = ctx->priv;
|
|
|
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
|
|
+
|
|
|
+ s->depth = desc->comp[0].depth;
|
|
|
+ s->bpp = s->depth >> 3;
|
|
|
+ s->step = av_get_padded_bits_per_pixel(desc) >> (3 + (s->bpp == 2));
|
|
|
+ ff_fill_rgba_map(s->rgba_map, inlink->format);
|
|
|
+
|
|
|
+ s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
|
|
|
+ s->planewidth[0] = s->planewidth[3] = inlink->w;
|
|
|
+ s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
|
|
|
+ s->planeheight[0] = s->planeheight[3] = inlink->h;
|
|
|
+
|
|
|
+ s->do_slice[0] = s->depth <= 8 ? do_slice_8_0 : do_slice_16_0;
|
|
|
+ s->do_slice[1] = s->depth <= 8 ? do_slice_8_1 : do_slice_16_1;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+static const AVFilterPad huesaturation_inputs[] = {
|
|
|
+ {
|
|
|
+ .name = "default",
|
|
|
+ .type = AVMEDIA_TYPE_VIDEO,
|
|
|
+ .flags = AVFILTERPAD_FLAG_NEEDS_WRITABLE,
|
|
|
+ .filter_frame = filter_frame,
|
|
|
+ .config_props = config_input,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+static const AVFilterPad huesaturation_outputs[] = {
|
|
|
+ {
|
|
|
+ .name = "default",
|
|
|
+ .type = AVMEDIA_TYPE_VIDEO,
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+#define OFFSET(x) offsetof(HueSaturationContext, x)
|
|
|
+#define VF AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
|
|
|
+
|
|
|
+static const AVOption huesaturation_options[] = {
|
|
|
+ { "hue", "set the hue shift", OFFSET(hue), AV_OPT_TYPE_FLOAT, {.dbl=0},-180, 180, VF },
|
|
|
+ { "saturation", "set the saturation shift", OFFSET(saturation), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
|
|
|
+ { "intensity", "set the intensity shift", OFFSET(intensity), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
|
|
|
+ { "colors", "set colors range", OFFSET(colors), AV_OPT_TYPE_FLAGS, {.i64=ALL}, 0,ALL,VF, "colors" },
|
|
|
+ { "r", "set reds", 0, AV_OPT_TYPE_CONST, {.i64=RED}, 0, 0, VF, "colors" },
|
|
|
+ { "y", "set yellows", 0, AV_OPT_TYPE_CONST, {.i64=YELLOW}, 0, 0, VF, "colors" },
|
|
|
+ { "g", "set greens", 0, AV_OPT_TYPE_CONST, {.i64=GREEN}, 0, 0, VF, "colors" },
|
|
|
+ { "c", "set cyans", 0, AV_OPT_TYPE_CONST, {.i64=CYAN}, 0, 0, VF, "colors" },
|
|
|
+ { "b", "set blues", 0, AV_OPT_TYPE_CONST, {.i64=BLUE}, 0, 0, VF, "colors" },
|
|
|
+ { "m", "set magentas", 0, AV_OPT_TYPE_CONST, {.i64=MAGENTA}, 0, 0, VF, "colors" },
|
|
|
+ { "a", "set all colors", 0, AV_OPT_TYPE_CONST, {.i64=ALL}, 0, 0, VF, "colors" },
|
|
|
+ { "strength", "set the filtering strength", OFFSET(strength), AV_OPT_TYPE_FLOAT, {.dbl=1}, 0,100,VF },
|
|
|
+ { "rw", "set the red weight", OFFSET(rlw), AV_OPT_TYPE_FLOAT, {.dbl=.333}, 0, 1, VF },
|
|
|
+ { "gw", "set the green weight", OFFSET(glw), AV_OPT_TYPE_FLOAT, {.dbl=.334}, 0, 1, VF },
|
|
|
+ { "bw", "set the blue weight", OFFSET(blw), AV_OPT_TYPE_FLOAT, {.dbl=.333}, 0, 1, VF },
|
|
|
+ { "lightness", "set the preserve lightness", OFFSET(lightness), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, VF },
|
|
|
+ { NULL }
|
|
|
+};
|
|
|
+
|
|
|
+AVFILTER_DEFINE_CLASS(huesaturation);
|
|
|
+
|
|
|
+const AVFilter ff_vf_huesaturation = {
|
|
|
+ .name = "huesaturation",
|
|
|
+ .description = NULL_IF_CONFIG_SMALL("Apply hue-saturation-intensity adjustments."),
|
|
|
+ .priv_size = sizeof(HueSaturationContext),
|
|
|
+ .priv_class = &huesaturation_class,
|
|
|
+ FILTER_INPUTS(huesaturation_inputs),
|
|
|
+ FILTER_OUTPUTS(huesaturation_outputs),
|
|
|
+ FILTER_PIXFMTS_ARRAY(pixel_fmts),
|
|
|
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
|
|
+ .process_command = ff_filter_process_command,
|
|
|
+};
|
Paul B Mahol