2 * Copyright (c) 2013 Paul B Mahol
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "libavutil/opt.h"
22 #include "libavutil/pixdesc.h"
24 #include "drawutils.h"
34 typedef struct ThreadData {
38 typedef struct ColorChannelMixerContext {
40 double rr, rg, rb, ra;
41 double gr, gg, gb, ga;
42 double br, bg, bb, ba;
43 double ar, ag, ab, aa;
51 int (*filter_slice)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
52 } ColorChannelMixerContext;
54 #define OFFSET(x) offsetof(ColorChannelMixerContext, x)
55 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
56 static const AVOption colorchannelmixer_options[] = {
57 { "rr", "set the red gain for the red channel", OFFSET(rr), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
58 { "rg", "set the green gain for the red channel", OFFSET(rg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
59 { "rb", "set the blue gain for the red channel", OFFSET(rb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
60 { "ra", "set the alpha gain for the red channel", OFFSET(ra), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
61 { "gr", "set the red gain for the green channel", OFFSET(gr), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
62 { "gg", "set the green gain for the green channel", OFFSET(gg), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
63 { "gb", "set the blue gain for the green channel", OFFSET(gb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
64 { "ga", "set the alpha gain for the green channel", OFFSET(ga), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
65 { "br", "set the red gain for the blue channel", OFFSET(br), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
66 { "bg", "set the green gain for the blue channel", OFFSET(bg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
67 { "bb", "set the blue gain for the blue channel", OFFSET(bb), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
68 { "ba", "set the alpha gain for the blue channel", OFFSET(ba), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
69 { "ar", "set the red gain for the alpha channel", OFFSET(ar), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
70 { "ag", "set the green gain for the alpha channel", OFFSET(ag), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
71 { "ab", "set the blue gain for the alpha channel", OFFSET(ab), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS },
72 { "aa", "set the alpha gain for the alpha channel", OFFSET(aa), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS },
76 AVFILTER_DEFINE_CLASS(colorchannelmixer);
78 static int query_formats(AVFilterContext *ctx)
80 static const enum AVPixelFormat pix_fmts[] = {
81 AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
82 AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA,
83 AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR,
84 AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR,
85 AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0,
86 AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48,
87 AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64,
88 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
90 AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
91 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12,
93 AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
97 AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
99 return AVERROR(ENOMEM);
100 return ff_set_common_formats(ctx, fmts_list);
103 static av_always_inline int filter_slice_rgba_planar(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs,
106 ColorChannelMixerContext *s = ctx->priv;
107 ThreadData *td = arg;
108 AVFrame *in = td->in;
109 AVFrame *out = td->out;
110 const int slice_start = (out->height * jobnr) / nb_jobs;
111 const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
112 const uint8_t *srcg = in->data[0] + slice_start * in->linesize[0];
113 const uint8_t *srcb = in->data[1] + slice_start * in->linesize[1];
114 const uint8_t *srcr = in->data[2] + slice_start * in->linesize[2];
115 const uint8_t *srca = in->data[3] + slice_start * in->linesize[3];
116 uint8_t *dstg = out->data[0] + slice_start * out->linesize[0];
117 uint8_t *dstb = out->data[1] + slice_start * out->linesize[1];
118 uint8_t *dstr = out->data[2] + slice_start * out->linesize[2];
119 uint8_t *dsta = out->data[3] + slice_start * out->linesize[3];
122 for (i = slice_start; i < slice_end; i++) {
123 for (j = 0; j < out->width; j++) {
124 const uint8_t rin = srcr[j];
125 const uint8_t gin = srcg[j];
126 const uint8_t bin = srcb[j];
127 const uint8_t ain = srca[j];
129 dstr[j] = av_clip_uint8(s->lut[R][R][rin] +
132 (have_alpha == 1 ? s->lut[R][A][ain] : 0));
133 dstg[j] = av_clip_uint8(s->lut[G][R][rin] +
136 (have_alpha == 1 ? s->lut[G][A][ain] : 0));
137 dstb[j] = av_clip_uint8(s->lut[B][R][rin] +
140 (have_alpha == 1 ? s->lut[B][A][ain] : 0));
141 if (have_alpha == 1) {
142 dsta[j] = av_clip_uint8(s->lut[A][R][rin] +
149 srcg += in->linesize[0];
150 srcb += in->linesize[1];
151 srcr += in->linesize[2];
152 srca += in->linesize[3];
153 dstg += out->linesize[0];
154 dstb += out->linesize[1];
155 dstr += out->linesize[2];
156 dsta += out->linesize[3];
162 static av_always_inline int filter_slice_rgba16_planar(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs,
163 int have_alpha, int depth)
165 ColorChannelMixerContext *s = ctx->priv;
166 ThreadData *td = arg;
167 AVFrame *in = td->in;
168 AVFrame *out = td->out;
169 const int slice_start = (out->height * jobnr) / nb_jobs;
170 const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
171 const uint16_t *srcg = (const uint16_t *)(in->data[0] + slice_start * in->linesize[0]);
172 const uint16_t *srcb = (const uint16_t *)(in->data[1] + slice_start * in->linesize[1]);
173 const uint16_t *srcr = (const uint16_t *)(in->data[2] + slice_start * in->linesize[2]);
174 const uint16_t *srca = (const uint16_t *)(in->data[3] + slice_start * in->linesize[3]);
175 uint16_t *dstg = (uint16_t *)(out->data[0] + slice_start * out->linesize[0]);
176 uint16_t *dstb = (uint16_t *)(out->data[1] + slice_start * out->linesize[1]);
177 uint16_t *dstr = (uint16_t *)(out->data[2] + slice_start * out->linesize[2]);
178 uint16_t *dsta = (uint16_t *)(out->data[3] + slice_start * out->linesize[3]);
181 for (i = slice_start; i < slice_end; i++) {
182 for (j = 0; j < out->width; j++) {
183 const uint16_t rin = srcr[j];
184 const uint16_t gin = srcg[j];
185 const uint16_t bin = srcb[j];
186 const uint16_t ain = srca[j];
188 dstr[j] = av_clip_uintp2(s->lut[R][R][rin] +
191 (have_alpha == 1 ? s->lut[R][A][ain] : 0), depth);
192 dstg[j] = av_clip_uintp2(s->lut[G][R][rin] +
195 (have_alpha == 1 ? s->lut[G][A][ain] : 0), depth);
196 dstb[j] = av_clip_uintp2(s->lut[B][R][rin] +
199 (have_alpha == 1 ? s->lut[B][A][ain] : 0), depth);
200 if (have_alpha == 1) {
201 dsta[j] = av_clip_uintp2(s->lut[A][R][rin] +
204 s->lut[A][A][ain], depth);
208 srcg += in->linesize[0] / 2;
209 srcb += in->linesize[1] / 2;
210 srcr += in->linesize[2] / 2;
211 srca += in->linesize[3] / 2;
212 dstg += out->linesize[0] / 2;
213 dstb += out->linesize[1] / 2;
214 dstr += out->linesize[2] / 2;
215 dsta += out->linesize[3] / 2;
221 static int filter_slice_gbrp(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
223 return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 0);
226 static int filter_slice_gbrap(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
228 return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 1);
231 static int filter_slice_gbrp9(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
233 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 9);
236 static int filter_slice_gbrp10(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
238 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 10);
241 static int filter_slice_gbrap10(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
243 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 10);
246 static int filter_slice_gbrp12(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
248 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 12);
251 static int filter_slice_gbrap12(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
253 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 12);
256 static int filter_slice_gbrp14(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
258 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 14);
261 static int filter_slice_gbrp16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
263 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 16);
266 static int filter_slice_gbrap16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
268 return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 16);
271 static av_always_inline int filter_slice_rgba_packed(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs,
272 int have_alpha, int step)
274 ColorChannelMixerContext *s = ctx->priv;
275 ThreadData *td = arg;
276 AVFrame *in = td->in;
277 AVFrame *out = td->out;
278 const int slice_start = (out->height * jobnr) / nb_jobs;
279 const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
280 const uint8_t roffset = s->rgba_map[R];
281 const uint8_t goffset = s->rgba_map[G];
282 const uint8_t boffset = s->rgba_map[B];
283 const uint8_t aoffset = s->rgba_map[A];
284 const uint8_t *srcrow = in->data[0] + slice_start * in->linesize[0];
285 uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0];
288 for (i = slice_start; i < slice_end; i++) {
289 const uint8_t *src = srcrow;
290 uint8_t *dst = dstrow;
292 for (j = 0; j < out->width * step; j += step) {
293 const uint8_t rin = src[j + roffset];
294 const uint8_t gin = src[j + goffset];
295 const uint8_t bin = src[j + boffset];
296 const uint8_t ain = src[j + aoffset];
298 dst[j + roffset] = av_clip_uint8(s->lut[R][R][rin] +
301 (have_alpha == 1 ? s->lut[R][A][ain] : 0));
302 dst[j + goffset] = av_clip_uint8(s->lut[G][R][rin] +
305 (have_alpha == 1 ? s->lut[G][A][ain] : 0));
306 dst[j + boffset] = av_clip_uint8(s->lut[B][R][rin] +
309 (have_alpha == 1 ? s->lut[B][A][ain] : 0));
310 if (have_alpha == 1) {
311 dst[j + aoffset] = av_clip_uint8(s->lut[A][R][rin] +
315 } else if (have_alpha == -1 && in != out)
316 dst[j + aoffset] = 0;
319 srcrow += in->linesize[0];
320 dstrow += out->linesize[0];
326 static av_always_inline int filter_slice_rgba16_packed(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs,
327 int have_alpha, int step)
329 ColorChannelMixerContext *s = ctx->priv;
330 ThreadData *td = arg;
331 AVFrame *in = td->in;
332 AVFrame *out = td->out;
333 const int slice_start = (out->height * jobnr) / nb_jobs;
334 const int slice_end = (out->height * (jobnr+1)) / nb_jobs;
335 const uint8_t roffset = s->rgba_map[R];
336 const uint8_t goffset = s->rgba_map[G];
337 const uint8_t boffset = s->rgba_map[B];
338 const uint8_t aoffset = s->rgba_map[A];
339 const uint8_t *srcrow = in->data[0] + slice_start * in->linesize[0];
340 uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0];
343 for (i = slice_start; i < slice_end; i++) {
344 const uint16_t *src = (const uint16_t *)srcrow;
345 uint16_t *dst = (uint16_t *)dstrow;
347 for (j = 0; j < out->width * step; j += step) {
348 const uint16_t rin = src[j + roffset];
349 const uint16_t gin = src[j + goffset];
350 const uint16_t bin = src[j + boffset];
351 const uint16_t ain = src[j + aoffset];
353 dst[j + roffset] = av_clip_uint16(s->lut[R][R][rin] +
356 (have_alpha == 1 ? s->lut[R][A][ain] : 0));
357 dst[j + goffset] = av_clip_uint16(s->lut[G][R][rin] +
360 (have_alpha == 1 ? s->lut[G][A][ain] : 0));
361 dst[j + boffset] = av_clip_uint16(s->lut[B][R][rin] +
364 (have_alpha == 1 ? s->lut[B][A][ain] : 0));
365 if (have_alpha == 1) {
366 dst[j + aoffset] = av_clip_uint16(s->lut[A][R][rin] +
373 srcrow += in->linesize[0];
374 dstrow += out->linesize[0];
380 static int filter_slice_rgba64(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
382 return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 1, 4);
385 static int filter_slice_rgb48(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
387 return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 0, 3);
390 static int filter_slice_rgba(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
392 return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 1, 4);
395 static int filter_slice_rgb24(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
397 return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 0, 3);
400 static int filter_slice_rgb0(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
402 return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, -1, 4);
405 static int config_output(AVFilterLink *outlink)
407 AVFilterContext *ctx = outlink->src;
408 ColorChannelMixerContext *s = ctx->priv;
409 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format);
410 const int depth = desc->comp[0].depth;
411 int i, j, size, *buffer;
413 ff_fill_rgba_map(s->rgba_map, outlink->format);
416 s->buffer = buffer = av_malloc(16 * size * sizeof(*s->buffer));
418 return AVERROR(ENOMEM);
420 for (i = 0; i < 4; i++)
421 for (j = 0; j < 4; j++, buffer += size)
422 s->lut[i][j] = buffer;
424 for (i = 0; i < size; i++) {
425 s->lut[R][R][i] = lrint(i * s->rr);
426 s->lut[R][G][i] = lrint(i * s->rg);
427 s->lut[R][B][i] = lrint(i * s->rb);
428 s->lut[R][A][i] = lrint(i * s->ra);
430 s->lut[G][R][i] = lrint(i * s->gr);
431 s->lut[G][G][i] = lrint(i * s->gg);
432 s->lut[G][B][i] = lrint(i * s->gb);
433 s->lut[G][A][i] = lrint(i * s->ga);
435 s->lut[B][R][i] = lrint(i * s->br);
436 s->lut[B][G][i] = lrint(i * s->bg);
437 s->lut[B][B][i] = lrint(i * s->bb);
438 s->lut[B][A][i] = lrint(i * s->ba);
440 s->lut[A][R][i] = lrint(i * s->ar);
441 s->lut[A][G][i] = lrint(i * s->ag);
442 s->lut[A][B][i] = lrint(i * s->ab);
443 s->lut[A][A][i] = lrint(i * s->aa);
446 switch (outlink->format) {
447 case AV_PIX_FMT_BGR24:
448 case AV_PIX_FMT_RGB24:
449 s->filter_slice = filter_slice_rgb24;
451 case AV_PIX_FMT_0BGR:
452 case AV_PIX_FMT_0RGB:
453 case AV_PIX_FMT_BGR0:
454 case AV_PIX_FMT_RGB0:
455 s->filter_slice = filter_slice_rgb0;
457 case AV_PIX_FMT_ABGR:
458 case AV_PIX_FMT_ARGB:
459 case AV_PIX_FMT_BGRA:
460 case AV_PIX_FMT_RGBA:
461 s->filter_slice = filter_slice_rgba;
463 case AV_PIX_FMT_BGR48:
464 case AV_PIX_FMT_RGB48:
465 s->filter_slice = filter_slice_rgb48;
467 case AV_PIX_FMT_BGRA64:
468 case AV_PIX_FMT_RGBA64:
469 s->filter_slice = filter_slice_rgba64;
471 case AV_PIX_FMT_GBRP:
472 s->filter_slice = filter_slice_gbrp;
474 case AV_PIX_FMT_GBRAP:
475 s->filter_slice = filter_slice_gbrap;
477 case AV_PIX_FMT_GBRP9:
478 s->filter_slice = filter_slice_gbrp9;
480 case AV_PIX_FMT_GBRP10:
481 s->filter_slice = filter_slice_gbrp10;
483 case AV_PIX_FMT_GBRAP10:
484 s->filter_slice = filter_slice_gbrap10;
486 case AV_PIX_FMT_GBRP12:
487 s->filter_slice = filter_slice_gbrp12;
489 case AV_PIX_FMT_GBRAP12:
490 s->filter_slice = filter_slice_gbrap12;
492 case AV_PIX_FMT_GBRP14:
493 s->filter_slice = filter_slice_gbrp14;
495 case AV_PIX_FMT_GBRP16:
496 s->filter_slice = filter_slice_gbrp16;
498 case AV_PIX_FMT_GBRAP16:
499 s->filter_slice = filter_slice_gbrap16;
506 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
508 AVFilterContext *ctx = inlink->dst;
509 ColorChannelMixerContext *s = ctx->priv;
510 AVFilterLink *outlink = ctx->outputs[0];
514 if (av_frame_is_writable(in)) {
517 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
520 return AVERROR(ENOMEM);
522 av_frame_copy_props(out, in);
527 ctx->internal->execute(ctx, s->filter_slice, &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx)));
531 return ff_filter_frame(outlink, out);
534 static av_cold void uninit(AVFilterContext *ctx)
536 ColorChannelMixerContext *s = ctx->priv;
538 av_freep(&s->buffer);
541 static const AVFilterPad colorchannelmixer_inputs[] = {
544 .type = AVMEDIA_TYPE_VIDEO,
545 .filter_frame = filter_frame,
550 static const AVFilterPad colorchannelmixer_outputs[] = {
553 .type = AVMEDIA_TYPE_VIDEO,
554 .config_props = config_output,
559 AVFilter ff_vf_colorchannelmixer = {
560 .name = "colorchannelmixer",
561 .description = NULL_IF_CONFIG_SMALL("Adjust colors by mixing color channels."),
562 .priv_size = sizeof(ColorChannelMixerContext),
563 .priv_class = &colorchannelmixer_class,
565 .query_formats = query_formats,
566 .inputs = colorchannelmixer_inputs,
567 .outputs = colorchannelmixer_outputs,
568 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,