2 * Copyright (c) 2019 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/imgutils.h"
22 #include "libavutil/pixdesc.h"
23 #include "libavutil/opt.h"
28 #include "framesync.h"
30 #define OFFSET(x) offsetof(MaskedMinMaxContext, x)
31 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
33 typedef struct ThreadData {
34 AVFrame *src, *f1, *f2, *dst;
37 typedef struct MaskedMinMaxContext {
44 int planewidth[4], planeheight[4];
49 void (*maskedminmax)(const uint8_t *src, uint8_t *dst, const uint8_t *f1, const uint8_t *f2, int w);
50 } MaskedMinMaxContext;
52 static const AVOption maskedminmax_options[] = {
53 { "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
57 static av_cold int init(AVFilterContext *ctx)
59 MaskedMinMaxContext *s = ctx->priv;
61 s->maskedmin = !strcmp(ctx->filter->name, "maskedmin");
66 static int query_formats(AVFilterContext *ctx)
68 static const enum AVPixelFormat pix_fmts[] = {
69 AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
70 AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
71 AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
72 AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
73 AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
74 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
75 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
76 AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
77 AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
78 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
79 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
80 AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
81 AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
82 AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
83 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
84 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
85 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
86 AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
90 return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
93 static void maskedmin8(const uint8_t *src, uint8_t *dst, const uint8_t *f1, const uint8_t *f2, int w)
95 for (int x = 0; x < w; x++)
96 dst[x] = FFABS(src[x] - f2[x]) < FFABS(src[x] - f1[x]) ? f2[x] : f1[x];
99 static void maskedmax8(const uint8_t *src, uint8_t *dst, const uint8_t *f1, const uint8_t *f2, int w)
101 for (int x = 0; x < w; x++)
102 dst[x] = FFABS(src[x] - f2[x]) > FFABS(src[x] - f1[x]) ? f2[x] : f1[x];
105 static void maskedmin16(const uint8_t *ssrc, uint8_t *ddst, const uint8_t *ff1, const uint8_t *ff2, int w)
107 const uint16_t *src = (const uint16_t *)ssrc;
108 const uint16_t *f1 = (const uint16_t *)ff1;
109 const uint16_t *f2 = (const uint16_t *)ff2;
110 uint16_t *dst = (uint16_t *)ddst;
112 for (int x = 0; x < w; x++)
113 dst[x] = FFABS(src[x] - f2[x]) < FFABS(src[x] - f1[x]) ? f2[x] : f1[x];
116 static void maskedmax16(const uint8_t *ssrc, uint8_t *ddst, const uint8_t *ff1, const uint8_t *ff2, int w)
118 const uint16_t *src = (const uint16_t *)ssrc;
119 const uint16_t *f1 = (const uint16_t *)ff1;
120 const uint16_t *f2 = (const uint16_t *)ff2;
121 uint16_t *dst = (uint16_t *)ddst;
123 for (int x = 0; x < w; x++)
124 dst[x] = FFABS(src[x] - f2[x]) > FFABS(src[x] - f1[x]) ? f2[x] : f1[x];
127 static int config_input(AVFilterLink *inlink)
129 AVFilterContext *ctx = inlink->dst;
130 MaskedMinMaxContext *s = ctx->priv;
131 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
134 s->nb_planes = av_pix_fmt_count_planes(inlink->format);
136 if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
139 hsub = desc->log2_chroma_w;
140 vsub = desc->log2_chroma_h;
141 s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
142 s->planeheight[0] = s->planeheight[3] = inlink->h;
143 s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
144 s->planewidth[0] = s->planewidth[3] = inlink->w;
146 s->depth = desc->comp[0].depth;
148 if (desc->comp[0].depth == 8)
149 s->maskedminmax = s->maskedmin ? maskedmin8 : maskedmax8;
151 s->maskedminmax = s->maskedmin ? maskedmin16 : maskedmax16;
156 static int maskedminmax_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
158 MaskedMinMaxContext *s = ctx->priv;
159 ThreadData *td = arg;
161 for (int p = 0; p < s->nb_planes; p++) {
162 const ptrdiff_t src_linesize = td->src->linesize[p];
163 const ptrdiff_t f1_linesize = td->f1->linesize[p];
164 const ptrdiff_t f2_linesize = td->f2->linesize[p];
165 const ptrdiff_t dst_linesize = td->dst->linesize[p];
166 const int w = s->planewidth[p];
167 const int h = s->planeheight[p];
168 const int slice_start = (h * jobnr) / nb_jobs;
169 const int slice_end = (h * (jobnr+1)) / nb_jobs;
170 const uint8_t *src = td->src->data[p] + slice_start * src_linesize;
171 const uint8_t *f1 = td->f1->data[p] + slice_start * f1_linesize;
172 const uint8_t *f2 = td->f2->data[p] + slice_start * f2_linesize;
173 uint8_t *dst = td->dst->data[p] + slice_start * dst_linesize;
175 if (!((1 << p) & s->planes)) {
176 av_image_copy_plane(dst, dst_linesize, src, src_linesize,
177 s->linesize[p], slice_end - slice_start);
181 for (int y = slice_start; y < slice_end; y++) {
182 s->maskedminmax(src, dst, f1, f2, w);
194 static int process_frame(FFFrameSync *fs)
196 AVFilterContext *ctx = fs->parent;
197 MaskedMinMaxContext *s = fs->opaque;
198 AVFilterLink *outlink = ctx->outputs[0];
199 AVFrame *out, *src, *f1, *f2;
202 if ((ret = ff_framesync_get_frame(&s->fs, 0, &src, 0)) < 0 ||
203 (ret = ff_framesync_get_frame(&s->fs, 1, &f1, 0)) < 0 ||
204 (ret = ff_framesync_get_frame(&s->fs, 2, &f2, 0)) < 0)
207 if (ctx->is_disabled) {
208 out = av_frame_clone(src);
210 return AVERROR(ENOMEM);
214 out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
216 return AVERROR(ENOMEM);
217 av_frame_copy_props(out, src);
224 ctx->internal->execute(ctx, maskedminmax_slice, &td, NULL, FFMIN(s->planeheight[0],
225 ff_filter_get_nb_threads(ctx)));
227 out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
229 return ff_filter_frame(outlink, out);
232 static int config_output(AVFilterLink *outlink)
234 AVFilterContext *ctx = outlink->src;
235 MaskedMinMaxContext *s = ctx->priv;
236 AVFilterLink *source = ctx->inputs[0];
237 AVFilterLink *f1 = ctx->inputs[1];
238 AVFilterLink *f2 = ctx->inputs[2];
242 if (source->format != f1->format ||
243 source->format != f2->format) {
244 av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
245 return AVERROR(EINVAL);
247 if (source->w != f1->w || source->h != f1->h ||
248 source->w != f2->w || source->h != f2->h) {
249 av_log(ctx, AV_LOG_ERROR, "First input link %s parameters "
250 "(size %dx%d) do not match the corresponding "
251 "second input link %s parameters (%dx%d) "
252 "and/or third input link %s parameters (size %dx%d)\n",
253 ctx->input_pads[0].name, source->w, source->h,
254 ctx->input_pads[1].name, f1->w, f1->h,
255 ctx->input_pads[2].name, f2->w, f2->h);
256 return AVERROR(EINVAL);
259 outlink->w = source->w;
260 outlink->h = source->h;
261 outlink->sample_aspect_ratio = source->sample_aspect_ratio;
262 outlink->frame_rate = source->frame_rate;
264 if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
268 in[0].time_base = source->time_base;
269 in[1].time_base = f1->time_base;
270 in[2].time_base = f2->time_base;
272 in[0].before = EXT_STOP;
273 in[0].after = EXT_INFINITY;
275 in[1].before = EXT_STOP;
276 in[1].after = EXT_INFINITY;
278 in[2].before = EXT_STOP;
279 in[2].after = EXT_INFINITY;
281 s->fs.on_event = process_frame;
283 ret = ff_framesync_configure(&s->fs);
284 outlink->time_base = s->fs.time_base;
289 static int activate(AVFilterContext *ctx)
291 MaskedMinMaxContext *s = ctx->priv;
292 return ff_framesync_activate(&s->fs);
295 static av_cold void uninit(AVFilterContext *ctx)
297 MaskedMinMaxContext *s = ctx->priv;
299 ff_framesync_uninit(&s->fs);
302 static const AVFilterPad maskedminmax_inputs[] = {
305 .type = AVMEDIA_TYPE_VIDEO,
306 .config_props = config_input,
310 .type = AVMEDIA_TYPE_VIDEO,
314 .type = AVMEDIA_TYPE_VIDEO,
319 static const AVFilterPad maskedminmax_outputs[] = {
322 .type = AVMEDIA_TYPE_VIDEO,
323 .config_props = config_output,
328 #define maskedmin_options maskedminmax_options
329 AVFILTER_DEFINE_CLASS(maskedmin);
331 AVFilter ff_vf_maskedmin = {
333 .description = NULL_IF_CONFIG_SMALL("Apply filtering with minimum difference of two streams."),
334 .priv_class = &maskedmin_class,
335 .priv_size = sizeof(MaskedMinMaxContext),
338 .activate = activate,
339 .query_formats = query_formats,
340 .inputs = maskedminmax_inputs,
341 .outputs = maskedminmax_outputs,
342 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
343 .process_command = ff_filter_process_command,
346 #define maskedmax_options maskedminmax_options
347 AVFILTER_DEFINE_CLASS(maskedmax);
349 AVFilter ff_vf_maskedmax = {
351 .description = NULL_IF_CONFIG_SMALL("Apply filtering with maximum difference of two streams."),
352 .priv_class = &maskedmax_class,
353 .priv_size = sizeof(MaskedMinMaxContext),
356 .activate = activate,
357 .query_formats = query_formats,
358 .inputs = maskedminmax_inputs,
359 .outputs = maskedminmax_outputs,
360 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
361 .process_command = ff_filter_process_command,