FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/vf_xmedian.c
Date: 2024-07-26 21:54:09
Exec Total Coverage
Lines: 0 154 0.0%
Functions: 0 14 0.0%
Branches: 0 190 0.0%
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1 /*
2 * Copyright (c) 2019 Paul B Mahol
3 *
4 * This file is part of FFmpeg.
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include "config_components.h"
22
23 #include "libavutil/avstring.h"
24 #include "libavutil/imgutils.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/opt.h"
27 #include "libavutil/pixdesc.h"
28 #include "libavutil/qsort.h"
29
30 #include "avfilter.h"
31 #include "internal.h"
32 #include "framesync.h"
33 #include "video.h"
34
35 typedef struct XMedianContext {
36 const AVClass *class;
37 const AVPixFmtDescriptor *desc;
38 int nb_inputs;
39 int nb_frames;
40 int nb_threads;
41 int planes;
42 float percentile;
43
44 int xmedian;
45 int radius;
46 int index;
47 int depth;
48 int max;
49 int nb_planes;
50 int linesizes[4];
51 int width[4];
52 int height[4];
53
54 uint8_t **data;
55 int *linesize;
56
57 AVFrame **frames;
58 FFFrameSync fs;
59
60 int (*median_frames)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
61 } XMedianContext;
62
63 #define OFFSET(x) offsetof(XMedianContext, x)
64 #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
65 #define TFLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
66
67 static const enum AVPixelFormat pixel_fmts[] = {
68 AV_PIX_FMT_GRAY8,
69 AV_PIX_FMT_GRAY9,
70 AV_PIX_FMT_GRAY10,
71 AV_PIX_FMT_GRAY12,
72 AV_PIX_FMT_GRAY14,
73 AV_PIX_FMT_GRAY16,
74 AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
75 AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
76 AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
77 AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
78 AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
79 AV_PIX_FMT_YUVJ411P,
80 AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
81 AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
82 AV_PIX_FMT_YUV440P10,
83 AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
84 AV_PIX_FMT_YUV440P12,
85 AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
86 AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
87 AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
88 AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
89 AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
90 AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
91 AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
92 AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
93 AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
94 AV_PIX_FMT_NONE
95 };
96
97 ✗ static av_cold int init(AVFilterContext *ctx)
98 {
99 ✗ XMedianContext *s = ctx->priv;
100
101 ✗ if (!s->xmedian)
102 ✗ s->nb_inputs = s->radius * 2 + 1;
103
104 ✗ if (s->nb_inputs & 1)
105 ✗ s->index = s->radius * 2.f * s->percentile;
106 else
107 ✗ s->index = av_clip(s->radius * 2.f * s->percentile, 1, s->nb_inputs - 1);
108 ✗ s->frames = av_calloc(s->nb_inputs, sizeof(*s->frames));
109 ✗ if (!s->frames)
110 ✗ return AVERROR(ENOMEM);
111
112 ✗ return 0;
113 }
114
115 typedef struct ThreadData {
116 AVFrame **in, *out;
117 } ThreadData;
118
119 ✗ static int compare8(const void *p1, const void *p2)
120 {
121 ✗ int left = *(const uint8_t *)p1;
122 ✗ int right = *(const uint8_t *)p2;
123 ✗ return FFDIFFSIGN(left, right);
124 }
125
126 ✗ static int compare16(const void *p1, const void *p2)
127 {
128 ✗ int left = *(const uint16_t *)p1;
129 ✗ int right = *(const uint16_t *)p2;
130 ✗ return FFDIFFSIGN(left, right);
131 }
132
133 #define MEDIAN_SLICE(name, type, comparei) \
134 static int median_frames ## name(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
135 { \
136 XMedianContext *s = ctx->priv; \
137 ThreadData *td = arg; \
138 AVFrame **in = td->in; \
139 AVFrame *out = td->out; \
140 const int nb_inputs = s->nb_inputs; \
141 uint8_t **srcf = s->data + jobnr * nb_inputs; \
142 int *linesize = s->linesize + jobnr * nb_inputs; \
143 const int radius = s->radius; \
144 const int index = s->index; \
145 type values[256]; \
146 \
147 for (int p = 0; p < s->nb_planes; p++) { \
148 const int slice_start = (s->height[p] * jobnr) / nb_jobs; \
149 const int slice_end = (s->height[p] * (jobnr+1)) / nb_jobs; \
150 const int width = s->width[p]; \
151 type *dst = (type *)(out->data[p] + slice_start * out->linesize[p]); \
152 ptrdiff_t dst_linesize = out->linesize[p] / sizeof(type); \
153 \
154 if (!((1 << p) & s->planes)) { \
155 av_image_copy_plane((uint8_t *)dst, out->linesize[p], \
156 in[radius]->data[p] + slice_start * in[radius]->linesize[p], \
157 in[radius]->linesize[p], \
158 s->linesizes[p], slice_end - slice_start); \
159 continue; \
160 } \
161 \
162 for (int i = 0; i < nb_inputs; i++) \
163 linesize[i] = in[i]->linesize[p]; \
164 \
165 for (int i = 0; i < nb_inputs; i++) \
166 srcf[i] = in[i]->data[p] + slice_start * linesize[i]; \
167 \
168 for (int y = slice_start; y < slice_end; y++) { \
169 for (int x = 0; x < width; x++) { \
170 for (int i = 0; i < nb_inputs; i++) { \
171 const type *src = (const type *)srcf[i]; \
172 values[i] = src[x]; \
173 } \
174 \
175 AV_QSORT(values, nb_inputs, type, comparei); \
176 if (nb_inputs & 1) \
177 dst[x] = values[index]; \
178 else \
179 dst[x] = (values[index] + values[index - 1]) >> 1; \
180 } \
181 \
182 dst += dst_linesize; \
183 for (int i = 0; i < nb_inputs; i++) \
184 srcf[i] += linesize[i]; \
185 } \
186 } \
187 \
188 return 0; \
189 }
190
191 ✗ MEDIAN_SLICE(8, uint8_t, compare8)
192 ✗ MEDIAN_SLICE(16, uint16_t, compare16)
193
194 ✗ static void update_index(XMedianContext *s)
195 {
196 ✗ if (s->nb_inputs & 1)
197 ✗ s->index = s->radius * 2.f * s->percentile;
198 else
199 ✗ s->index = av_clip(s->radius * 2.f * s->percentile, 1, s->nb_inputs - 1);
200 ✗ }
201
202 ✗ static int process_frame(FFFrameSync *fs)
203 {
204 ✗ AVFilterContext *ctx = fs->parent;
205 ✗ AVFilterLink *outlink = ctx->outputs[0];
206 ✗ XMedianContext *s = fs->opaque;
207 ✗ AVFrame **in = s->frames;
208 AVFrame *out;
209 ThreadData td;
210 int i, ret;
211
212 ✗ update_index(s);
213
214 ✗ for (i = 0; i < s->nb_inputs; i++) {
215 ✗ if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
216 ✗ return ret;
217 }
218
219 ✗ if (ctx->is_disabled) {
220 ✗ out = av_frame_clone(in[0]);
221 } else {
222 ✗ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
223 }
224 ✗ if (!out)
225 ✗ return AVERROR(ENOMEM);
226 ✗ out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
227
228 ✗ if (!ctx->is_disabled) {
229 ✗ td.in = in;
230 ✗ td.out = out;
231 ✗ ff_filter_execute(ctx, s->median_frames, &td, NULL,
232 ✗ FFMIN(s->height[1], s->nb_threads));
233 }
234
235 ✗ return ff_filter_frame(outlink, out);
236 }
237
238 ✗ static int config_output(AVFilterLink *outlink)
239 {
240 ✗ AVFilterContext *ctx = outlink->src;
241 ✗ XMedianContext *s = ctx->priv;
242 ✗ AVRational frame_rate = ctx->inputs[0]->frame_rate;
243 ✗ AVRational sar = ctx->inputs[0]->sample_aspect_ratio;
244 ✗ AVFilterLink *inlink = ctx->inputs[0];
245 ✗ int height = ctx->inputs[0]->h;
246 ✗ int width = ctx->inputs[0]->w;
247 FFFrameSyncIn *in;
248 int i, ret;
249
250 ✗ for (int i = 1; i < s->nb_inputs && s->xmedian; i++) {
251 ✗ if (ctx->inputs[i]->h != height || ctx->inputs[i]->w != width) {
252 ✗ av_log(ctx, AV_LOG_ERROR, "Input %d size (%dx%d) does not match input %d size (%dx%d).\n", i, ctx->inputs[i]->w, ctx->inputs[i]->h, 0, width, height);
253 ✗ return AVERROR(EINVAL);
254 }
255 }
256
257 ✗ s->desc = av_pix_fmt_desc_get(outlink->format);
258 ✗ if (!s->desc)
259 ✗ return AVERROR_BUG;
260 ✗ s->nb_planes = av_pix_fmt_count_planes(outlink->format);
261 ✗ s->depth = s->desc->comp[0].depth;
262 ✗ s->max = (1 << s->depth) - 1;
263 ✗ s->nb_threads = ff_filter_get_nb_threads(ctx);
264
265 ✗ if (s->depth <= 8)
266 ✗ s->median_frames = median_frames8;
267 else
268 ✗ s->median_frames = median_frames16;
269
270 ✗ if ((ret = av_image_fill_linesizes(s->linesizes, inlink->format, inlink->w)) < 0)
271 ✗ return ret;
272
273 ✗ s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, s->desc->log2_chroma_w);
274 ✗ s->width[0] = s->width[3] = inlink->w;
275 ✗ s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, s->desc->log2_chroma_h);
276 ✗ s->height[0] = s->height[3] = inlink->h;
277
278 ✗ s->data = av_calloc(s->nb_threads * s->nb_inputs, sizeof(*s->data));
279 ✗ if (!s->data)
280 ✗ return AVERROR(ENOMEM);
281
282 ✗ s->linesize = av_calloc(s->nb_threads * s->nb_inputs, sizeof(*s->linesize));
283 ✗ if (!s->linesize)
284 ✗ return AVERROR(ENOMEM);
285
286 ✗ if (!s->xmedian)
287 ✗ return 0;
288
289 ✗ outlink->w = width;
290 ✗ outlink->h = height;
291 ✗ outlink->frame_rate = frame_rate;
292 ✗ outlink->sample_aspect_ratio = sar;
293
294 ✗ if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0)
295 ✗ return ret;
296
297 ✗ in = s->fs.in;
298 ✗ s->fs.opaque = s;
299 ✗ s->fs.on_event = process_frame;
300
301 ✗ for (i = 0; i < s->nb_inputs; i++) {
302 ✗ AVFilterLink *inlink = ctx->inputs[i];
303
304 ✗ in[i].time_base = inlink->time_base;
305 ✗ in[i].sync = 1;
306 ✗ in[i].before = EXT_STOP;
307 ✗ in[i].after = EXT_INFINITY;
308 }
309
310 ✗ ret = ff_framesync_configure(&s->fs);
311 ✗ outlink->time_base = s->fs.time_base;
312
313 ✗ return ret;
314 }
315
316 ✗ static av_cold void uninit(AVFilterContext *ctx)
317 {
318 ✗ XMedianContext *s = ctx->priv;
319
320 ✗ ff_framesync_uninit(&s->fs);
321
322 ✗ for (int i = 0; i < s->nb_frames && s->frames && !s->xmedian; i++)
323 ✗ av_frame_free(&s->frames[i]);
324 ✗ av_freep(&s->frames);
325 ✗ av_freep(&s->data);
326 ✗ av_freep(&s->linesize);
327 ✗ }
328
329 ✗ static int activate(AVFilterContext *ctx)
330 {
331 ✗ XMedianContext *s = ctx->priv;
332 ✗ return ff_framesync_activate(&s->fs);
333 }
334
335 static const AVFilterPad outputs[] = {
336 {
337 .name = "default",
338 .type = AVMEDIA_TYPE_VIDEO,
339 .config_props = config_output,
340 },
341 };
342
343 #if CONFIG_XMEDIAN_FILTER
344 ✗ static av_cold int xmedian_init(AVFilterContext *ctx)
345 {
346 ✗ XMedianContext *s = ctx->priv;
347 int ret;
348
349 ✗ s->xmedian = 1;
350
351 ✗ s->radius = s->nb_inputs / 2;
352
353 ✗ for (int i = 0; i < s->nb_inputs; i++) {
354 ✗ AVFilterPad pad = { 0 };
355
356 ✗ pad.type = AVMEDIA_TYPE_VIDEO;
357 ✗ pad.name = av_asprintf("input%d", i);
358 ✗ if (!pad.name)
359 ✗ return AVERROR(ENOMEM);
360
361 ✗ if ((ret = ff_append_inpad_free_name(ctx, &pad)) < 0)
362 ✗ return ret;
363 }
364
365 ✗ return init(ctx);
366 }
367
368 static const AVOption xmedian_options[] = {
369 { "inputs", "set number of inputs", OFFSET(nb_inputs), AV_OPT_TYPE_INT, {.i64=3}, 3, 255, .flags = FLAGS },
370 { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS },
371 { "percentile", "set percentile", OFFSET(percentile),AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, .flags =TFLAGS },
372 { NULL },
373 };
374
375 ✗ FRAMESYNC_DEFINE_CLASS(xmedian, XMedianContext, fs);
376
377 const AVFilter ff_vf_xmedian = {
378 .name = "xmedian",
379 .description = NULL_IF_CONFIG_SMALL("Pick median pixels from several video inputs."),
380 .priv_size = sizeof(XMedianContext),
381 .priv_class = &xmedian_class,
382 FILTER_OUTPUTS(outputs),
383 FILTER_PIXFMTS_ARRAY(pixel_fmts),
384 .preinit = xmedian_framesync_preinit,
385 .init = xmedian_init,
386 .uninit = uninit,
387 .activate = activate,
388 .flags = AVFILTER_FLAG_DYNAMIC_INPUTS | AVFILTER_FLAG_SLICE_THREADS |
389 AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
390 .process_command = ff_filter_process_command,
391 };
392
393 #endif /* CONFIG_XMEDIAN_FILTER */
394
395 #if CONFIG_TMEDIAN_FILTER
396 ✗ static int tmedian_filter_frame(AVFilterLink *inlink, AVFrame *in)
397 {
398 ✗ AVFilterContext *ctx = inlink->dst;
399 ✗ AVFilterLink *outlink = ctx->outputs[0];
400 ✗ XMedianContext *s = ctx->priv;
401 ThreadData td;
402 AVFrame *out;
403
404 ✗ update_index(s);
405
406 ✗ if (s->nb_frames < s->nb_inputs) {
407 ✗ s->frames[s->nb_frames] = in;
408 ✗ s->nb_frames++;
409 ✗ if (s->nb_frames < s->nb_inputs)
410 ✗ return 0;
411 } else {
412 ✗ av_frame_free(&s->frames[0]);
413 ✗ memmove(&s->frames[0], &s->frames[1], sizeof(*s->frames) * (s->nb_inputs - 1));
414 ✗ s->frames[s->nb_inputs - 1] = in;
415 }
416
417 ✗ if (ctx->is_disabled) {
418 ✗ out = av_frame_clone(s->frames[0]);
419 ✗ if (!out)
420 ✗ return AVERROR(ENOMEM);
421 ✗ return ff_filter_frame(outlink, out);
422 }
423
424 ✗ out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
425 ✗ if (!out)
426 ✗ return AVERROR(ENOMEM);
427 ✗ out->pts = s->frames[0]->pts;
428
429 ✗ td.out = out;
430 ✗ td.in = s->frames;
431 ✗ ff_filter_execute(ctx, s->median_frames, &td, NULL,
432 ✗ FFMIN(s->height[1], s->nb_threads));
433
434 ✗ return ff_filter_frame(outlink, out);
435 }
436
437 static const AVOption tmedian_options[] = {
438 { "radius", "set median filter radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 127, .flags = FLAGS },
439 { "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15}, 0, 15, .flags =TFLAGS },
440 { "percentile", "set percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=0.5}, 0, 1, .flags =TFLAGS },
441 { NULL },
442 };
443
444 static const AVFilterPad tmedian_inputs[] = {
445 {
446 .name = "default",
447 .type = AVMEDIA_TYPE_VIDEO,
448 .filter_frame = tmedian_filter_frame,
449 },
450 };
451
452 AVFILTER_DEFINE_CLASS(tmedian);
453
454 const AVFilter ff_vf_tmedian = {
455 .name = "tmedian",
456 .description = NULL_IF_CONFIG_SMALL("Pick median pixels from successive frames."),
457 .priv_size = sizeof(XMedianContext),
458 .priv_class = &tmedian_class,
459 FILTER_INPUTS(tmedian_inputs),
460 FILTER_OUTPUTS(outputs),
461 FILTER_PIXFMTS_ARRAY(pixel_fmts),
462 .init = init,
463 .uninit = uninit,
464 .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
465 .process_command = ff_filter_process_command,
466 };
467
468 #endif /* CONFIG_TMEDIAN_FILTER */
469