FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/avfilter.c
Date: 2026-09-30 10:56:58
Exec Total Coverage
Lines: 677 853 79.4%
Functions: 58 66 87.9%
Branches: 367 516 71.1%
Line Branch Exec Source
1 /*
2 * filter layer
3 * Copyright (c) 2007 Bobby Bingham
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/avassert.h"
23 #include "libavutil/avstring.h"
24 #include "libavutil/bprint.h"
25 #include "libavutil/buffer.h"
26 #include "libavutil/channel_layout.h"
27 #include "libavutil/common.h"
28 #include "libavutil/eval.h"
29 #include "libavutil/frame.h"
30 #include "libavutil/hwcontext.h"
31 #include "libavutil/internal.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/pixdesc.h"
35 #include "libavutil/rational.h"
36 #include "libavutil/samplefmt.h"
37
38 #include "audio.h"
39 #include "avfilter.h"
40 #include "avfilter_internal.h"
41 #include "filters.h"
42 #include "formats.h"
43 #include "framequeue.h"
44 #include "framepool.h"
45 #include "video.h"
46
47 1743642 static void tlog_ref(void *ctx, AVFrame *ref, int end)
48 {
49 #ifdef TRACE
50 ff_tlog(ctx,
51 "ref[%p buf:%p data:%p linesize[%d, %d, %d, %d] pts:%"PRId64,
52 ref, ref->buf, ref->data[0],
53 ref->linesize[0], ref->linesize[1], ref->linesize[2], ref->linesize[3],
54 ref->pts);
55
56 if (ref->width) {
57 ff_tlog(ctx, " a:%d/%d s:%dx%d i:%c iskey:%d type:%c",
58 ref->sample_aspect_ratio.num, ref->sample_aspect_ratio.den,
59 ref->width, ref->height,
60 !(ref->flags & AV_FRAME_FLAG_INTERLACED) ? 'P' : /* Progressive */
61 (ref->flags & AV_FRAME_FLAG_TOP_FIELD_FIRST) ? 'T' : 'B', /* Top / Bottom */
62 !!(ref->flags & AV_FRAME_FLAG_KEY),
63 av_get_picture_type_char(ref->pict_type));
64 }
65 if (ref->nb_samples) {
66 AVBPrint bprint;
67
68 av_bprint_init(&bprint, 1, AV_BPRINT_SIZE_UNLIMITED);
69 av_channel_layout_describe_bprint(&ref->ch_layout, &bprint);
70 ff_tlog(ctx, " cl:%s n:%d r:%d",
71 bprint.str,
72 ref->nb_samples,
73 ref->sample_rate);
74 av_bprint_finalize(&bprint, NULL);
75 }
76
77 ff_tlog(ctx, "]%s", end ? "\n" : "");
78 #endif
79 1743642 }
80
81 ✗ static void command_queue_pop(AVFilterContext *filter)
82 {
83 ✗ FFFilterContext *ctxi = fffilterctx(filter);
84 ✗ AVFilterCommand *c = ctxi->command_queue;
85 ✗ av_freep(&c->arg);
86 ✗ av_freep(&c->command);
87 ✗ ctxi->command_queue = c->next;
88 ✗ av_free(c);
89 ✗ }
90
91 /**
92 * Append a new pad.
93 *
94 * @param count Pointer to the number of pads in the list
95 * @param pads Pointer to the pointer to the beginning of the list of pads
96 * @param links Pointer to the pointer to the beginning of the list of links
97 * @param newpad The new pad to add. A copy is made when adding.
98 * @return >= 0 in case of success, a negative AVERROR code on error
99 */
100 788 static int append_pad(unsigned *count, AVFilterPad **pads,
101 AVFilterLink ***links, AVFilterPad *newpad)
102 {
103 AVFilterLink **newlinks;
104 AVFilterPad *newpads;
105 788 unsigned idx = *count;
106
107 788 newpads = av_realloc_array(*pads, idx + 1, sizeof(*newpads));
108 788 newlinks = av_realloc_array(*links, idx + 1, sizeof(*newlinks));
109
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 788 if (newpads)
110 788 *pads = newpads;
111
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 788 if (newlinks)
112 788 *links = newlinks;
113
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 788 if (!newpads || !newlinks) {
114 ✗ if (newpad->flags & AVFILTERPAD_FLAG_FREE_NAME)
115 ✗ av_freep(&newpad->name);
116 ✗ return AVERROR(ENOMEM);
117 }
118
119 788 memcpy(*pads + idx, newpad, sizeof(AVFilterPad));
120 788 (*links)[idx] = NULL;
121
122 788 (*count)++;
123
124 788 return 0;
125 }
126
127 293 int ff_append_inpad(AVFilterContext *f, AVFilterPad *p)
128 {
129 293 return append_pad(&f->nb_inputs, &f->input_pads, &f->inputs, p);
130 }
131
132 272 int ff_append_inpad_free_name(AVFilterContext *f, AVFilterPad *p)
133 {
134 272 p->flags |= AVFILTERPAD_FLAG_FREE_NAME;
135 272 return ff_append_inpad(f, p);
136 }
137
138 495 int ff_append_outpad(AVFilterContext *f, AVFilterPad *p)
139 {
140 495 return append_pad(&f->nb_outputs, &f->output_pads, &f->outputs, p);
141 }
142
143 353 int ff_append_outpad_free_name(AVFilterContext *f, AVFilterPad *p)
144 {
145 353 p->flags |= AVFILTERPAD_FLAG_FREE_NAME;
146 353 return ff_append_outpad(f, p);
147 }
148
149 48309 int avfilter_link(AVFilterContext *src, unsigned srcpad,
150 AVFilterContext *dst, unsigned dstpad)
151 {
152 FilterLinkInternal *li;
153 AVFilterLink *link;
154
155
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 48309 av_assert0(src->graph);
156
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 48309 av_assert0(dst->graph);
157
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 48309 av_assert0(src->graph == dst->graph);
158
159
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 48309 if (src->nb_outputs <= srcpad || dst->nb_inputs <= dstpad ||
160
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 48309 src->outputs[srcpad] || dst->inputs[dstpad])
161 ✗ return AVERROR(EINVAL);
162
163
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 48309 if (!(fffilterctx(src)->state_flags & AV_CLASS_STATE_INITIALIZED) ||
164
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 48309 !(fffilterctx(dst)->state_flags & AV_CLASS_STATE_INITIALIZED)) {
165 ✗ av_log(src, AV_LOG_ERROR, "Filters must be initialized before linking.\n");
166 ✗ return AVERROR(EINVAL);
167 }
168
169
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 48309 if (src->output_pads[srcpad].type != dst->input_pads[dstpad].type) {
170 ✗ av_log(src, AV_LOG_ERROR,
171 "Media type mismatch between the '%s' filter output pad %d (%s) and the '%s' filter input pad %d (%s)\n",
172 ✗ src->name, srcpad, (char *)av_x_if_null(av_get_media_type_string(src->output_pads[srcpad].type), "?"),
173 ✗ dst->name, dstpad, (char *)av_x_if_null(av_get_media_type_string(dst-> input_pads[dstpad].type), "?"));
174 ✗ return AVERROR(EINVAL);
175 }
176
177 48309 li = av_mallocz(sizeof(*li));
178
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 48309 if (!li)
179 ✗ return AVERROR(ENOMEM);
180 48309 link = &li->l.pub;
181
182 48309 src->outputs[srcpad] = dst->inputs[dstpad] = link;
183
184 48309 link->src = src;
185 48309 link->dst = dst;
186 48309 link->srcpad = &src->output_pads[srcpad];
187 48309 link->dstpad = &dst->input_pads[dstpad];
188 48309 link->type = src->output_pads[srcpad].type;
189 48309 li->l.graph = src->graph;
190 av_assert0(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
191 48309 link->format = -1;
192 48309 link->colorspace = AVCOL_SPC_UNSPECIFIED;
193 48309 ff_framequeue_init(&li->fifo, &fffiltergraph(src->graph)->frame_queues);
194
195 48309 return 0;
196 }
197
198 48441 static void link_free(AVFilterLink **link)
199 {
200 FilterLinkInternal *li;
201
202
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 48441 if (!*link)
203 ✗ return;
204 48441 li = ff_link_internal(*link);
205
206 48441 ff_framequeue_free(&li->fifo);
207 48441 ff_frame_pool_uninit(&li->frame_pool);
208 48441 av_channel_layout_uninit(&(*link)->ch_layout);
209 48441 av_frame_side_data_free(&(*link)->side_data, &(*link)->nb_side_data);
210
211 48441 av_buffer_unref(&li->l.hw_frames_ctx);
212
213 48441 av_freep(link);
214 }
215
216 1755835 static void update_link_current_pts(FilterLinkInternal *li, int64_t pts)
217 {
218 1755835 AVFilterLink *const link = &li->l.pub;
219
220
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 1755835 if (pts == AV_NOPTS_VALUE)
221 5 return;
222 1755830 li->l.current_pts = pts;
223 1755830 li->l.current_pts_us = av_rescale_q(pts, link->time_base, AV_TIME_BASE_Q);
224 /* TODO use duration */
225
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 1755830 if (li->l.graph && li->age_index >= 0)
226 474110 ff_avfilter_graph_update_heap(li->l.graph, li);
227 }
228
229 4341357 void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
230 {
231 4341357 FFFilterContext *ctxi = fffilterctx(filter);
232 4341357 ctxi->ready = FFMAX(ctxi->ready, priority);
233 4341357 }
234
235 /**
236 * Clear frame_blocked_in on all outputs.
237 * This is necessary whenever something changes on input.
238 */
239 2596384 static void filter_unblock(AVFilterContext *filter)
240 {
241 unsigned i;
242
243
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 4722009 for (i = 0; i < filter->nb_outputs; i++) {
244 2125625 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
245 2125625 li->frame_blocked_in = 0;
246 }
247 2596384 }
248
249
250 20524 void ff_avfilter_link_set_in_status(AVFilterLink *link, int status, int64_t pts)
251 {
252 20524 FilterLinkInternal * const li = ff_link_internal(link);
253
254
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 20524 if (li->status_in == status)
255 5738 return;
256
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 14786 av_assert0(!li->status_in);
257 14786 li->status_in = status;
258 14786 li->status_in_pts = pts;
259 14786 li->frame_wanted_out = 0;
260 14786 li->frame_blocked_in = 0;
261 14786 filter_unblock(link->dst);
262 14786 ff_filter_set_ready(link->dst, 200);
263 }
264
265 /**
266 * Set the status field of a link from the destination filter.
267 * The pts should probably be left unset (AV_NOPTS_VALUE).
268 */
269 8908 static void link_set_out_status(AVFilterLink *link, int status, int64_t pts)
270 {
271 8908 FilterLinkInternal * const li = ff_link_internal(link);
272
273
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 8908 av_assert0(!li->frame_wanted_out);
274
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 8908 av_assert0(!li->status_out);
275 8908 li->status_out = status;
276
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 8908 if (pts != AV_NOPTS_VALUE)
277 6365 update_link_current_pts(li, pts);
278 8908 filter_unblock(link->dst);
279 8908 ff_filter_set_ready(link->src, 200);
280 8908 }
281
282 1438 int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
283 unsigned filt_srcpad_idx, unsigned filt_dstpad_idx)
284 {
285 int ret;
286 1438 unsigned dstpad_idx = link->dstpad - link->dst->input_pads;
287
288 1438 av_log(link->dst, AV_LOG_VERBOSE, "auto-inserting filter '%s' "
289 "between the filter '%s' and the filter '%s'\n",
290 1438 filt->name, link->src->name, link->dst->name);
291
292 1438 link->dst->inputs[dstpad_idx] = NULL;
293
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 1438 if ((ret = avfilter_link(filt, filt_dstpad_idx, link->dst, dstpad_idx)) < 0) {
294 /* failed to link output filter to new filter */
295 ✗ link->dst->inputs[dstpad_idx] = link;
296 ✗ return ret;
297 }
298
299 /* re-hookup the link to the new destination filter we inserted */
300 1438 link->dst = filt;
301 1438 link->dstpad = &filt->input_pads[filt_srcpad_idx];
302 1438 filt->inputs[filt_srcpad_idx] = link;
303
304 /* if any information on supported media formats already exists on the
305 * link, we need to preserve that */
306
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 1438 if (link->outcfg.formats)
307 1438 ff_formats_changeref(&link->outcfg.formats,
308 1438 &filt->outputs[filt_dstpad_idx]->outcfg.formats);
309
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 1438 if (link->outcfg.color_spaces)
310 634 ff_formats_changeref(&link->outcfg.color_spaces,
311 634 &filt->outputs[filt_dstpad_idx]->outcfg.color_spaces);
312
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 1438 if (link->outcfg.color_ranges)
313 634 ff_formats_changeref(&link->outcfg.color_ranges,
314 634 &filt->outputs[filt_dstpad_idx]->outcfg.color_ranges);
315
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 1438 if (link->outcfg.alpha_modes)
316 634 ff_formats_changeref(&link->outcfg.alpha_modes,
317 634 &filt->outputs[filt_dstpad_idx]->outcfg.alpha_modes);
318
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 1438 if (link->outcfg.samplerates)
319 804 ff_formats_changeref(&link->outcfg.samplerates,
320 804 &filt->outputs[filt_dstpad_idx]->outcfg.samplerates);
321
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 1438 if (link->outcfg.channel_layouts)
322 804 ff_channel_layouts_changeref(&link->outcfg.channel_layouts,
323 804 &filt->outputs[filt_dstpad_idx]->outcfg.channel_layouts);
324
325 1438 return 0;
326 }
327
328 46527 int ff_filter_config_links(AVFilterContext *filter)
329 {
330 int (*config_link)(AVFilterLink *);
331 unsigned i;
332 int ret;
333
334
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 84644 for (i = 0; i < filter->nb_inputs; i ++) {
335 38121 AVFilterLink *link = filter->inputs[i];
336 AVFilterLink *inlink;
337 38121 FilterLinkInternal *li = ff_link_internal(link);
338 FilterLinkInternal *li_in;
339
340
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 38121 if (!link) continue;
341
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 38121 if (!link->src || !link->dst) {
342 ✗ av_log(filter, AV_LOG_ERROR,
343 "Not all input and output are properly linked (%d).\n", i);
344 ✗ return AVERROR(EINVAL);
345 }
346
347
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 38121 inlink = link->src->nb_inputs ? link->src->inputs[0] : NULL;
348
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 38121 li_in = inlink ? ff_link_internal(inlink) : NULL;
349 38121 li->l.current_pts =
350 38121 li->l.current_pts_us = AV_NOPTS_VALUE;
351
352
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 38121 switch (li->init_state) {
353 211 case AVLINK_INIT:
354 211 continue;
355 2 case AVLINK_STARTINIT:
356 2 av_log(filter, AV_LOG_INFO, "circular filter chain detected\n");
357 2 return 0;
358 37908 case AVLINK_UNINIT:
359 37908 li->init_state = AVLINK_STARTINIT;
360
361
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 37908 if ((ret = ff_filter_config_links(link->src)) < 0)
362 1 return ret;
363
364
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 37907 if (!(config_link = link->srcpad->config_props)) {
365
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 19884 if (link->src->nb_inputs != 1) {
366 ✗ av_log(link->src, AV_LOG_ERROR, "Source filters and filters "
367 "with more than one input "
368 "must set config_props() "
369 "callbacks on all outputs\n");
370 ✗ return AVERROR(EINVAL);
371 }
372 }
373
374 /* Copy side data before link->srcpad->config_props() is called, so the filter
375 * may remove it for the next filter in the chain */
376
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 37907 if (inlink && inlink->nb_side_data && !link->nb_side_data) {
377
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 709 for (int j = 0; j < inlink->nb_side_data; j++) {
378 377 ret = av_frame_side_data_clone(&link->side_data, &link->nb_side_data,
379 377 inlink->side_data[j], 0);
380
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 377 if (ret < 0) {
381 ✗ av_frame_side_data_free(&link->side_data, &link->nb_side_data);
382 ✗ return ret;
383 }
384 }
385 }
386
387
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 37907 if (config_link && (ret = config_link(link)) < 0) {
388 1 av_log(link->src, AV_LOG_ERROR,
389 "Failed to configure output pad on %s\n",
390 1 link->src->name);
391 1 return ret;
392 }
393
394
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 37906 switch (link->type) {
395 31196 case AVMEDIA_TYPE_VIDEO:
396
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 31196 if (!link->time_base.num && !link->time_base.den)
397
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 23858 link->time_base = inlink ? inlink->time_base : AV_TIME_BASE_Q;
398
399
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 31196 if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den)
400 16970 link->sample_aspect_ratio = inlink ?
401
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 16970 inlink->sample_aspect_ratio : (AVRational){1,1};
402
403
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 31196 if (inlink) {
404
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 24125 if (!li->l.frame_rate.num && !li->l.frame_rate.den)
405 23901 li->l.frame_rate = li_in->l.frame_rate;
406
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 24125 if (!link->w)
407 16466 link->w = inlink->w;
408
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 24125 if (!link->h)
409 16466 link->h = inlink->h;
410
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 7071 } else if (!link->w || !link->h) {
411 ✗ av_log(link->src, AV_LOG_ERROR,
412 "Video source filters must set their output link's "
413 "width and height\n");
414 ✗ return AVERROR(EINVAL);
415 }
416 31196 break;
417
418 6710 case AVMEDIA_TYPE_AUDIO:
419
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 6710 if (inlink) {
420
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 5205 if (!link->time_base.num && !link->time_base.den)
421 3515 link->time_base = inlink->time_base;
422 }
423
424
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 6710 if (!link->time_base.num && !link->time_base.den)
425 88 link->time_base = (AVRational) {1, link->sample_rate};
426 }
427
428
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 37906 if (link->src->nb_inputs &&
429
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 29330 !(fffilter(link->src->filter)->flags_internal & FF_FILTER_FLAG_HWFRAME_AWARE)) {
430 29330 FilterLink *l0 = ff_filter_link(link->src->inputs[0]);
431
432
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 29330 av_assert0(!li->l.hw_frames_ctx &&
433 "should not be set by non-hwframe-aware filter");
434
435
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 29330 if (l0->hw_frames_ctx) {
436 ✗ li->l.hw_frames_ctx = av_buffer_ref(l0->hw_frames_ctx);
437 ✗ if (!li->l.hw_frames_ctx)
438 ✗ return AVERROR(ENOMEM);
439 }
440 }
441
442
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 37906 if ((config_link = link->dstpad->config_props))
443
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 5187 if ((ret = config_link(link)) < 0) {
444 ✗ av_log(link->dst, AV_LOG_ERROR,
445 "Failed to configure input pad on %s\n",
446 ✗ link->dst->name);
447 ✗ return ret;
448 }
449
450 37906 li->init_state = AVLINK_INIT;
451 }
452 }
453
454 46523 return 0;
455 }
456
457 #ifdef TRACE
458 void ff_tlog_link(void *ctx, AVFilterLink *link, int end)
459 {
460 if (link->type == AVMEDIA_TYPE_VIDEO) {
461 ff_tlog(ctx,
462 "link[%p s:%dx%d fmt:%s %s->%s]%s",
463 link, link->w, link->h,
464 av_get_pix_fmt_name(link->format),
465 link->src ? link->src->filter->name : "",
466 link->dst ? link->dst->filter->name : "",
467 end ? "\n" : "");
468 } else {
469 char buf[128];
470 av_channel_layout_describe(&link->ch_layout, buf, sizeof(buf));
471
472 ff_tlog(ctx,
473 "link[%p r:%d cl:%s fmt:%s %s->%s]%s",
474 link, (int)link->sample_rate, buf,
475 av_get_sample_fmt_name(link->format),
476 link->src ? link->src->filter->name : "",
477 link->dst ? link->dst->filter->name : "",
478 end ? "\n" : "");
479 }
480 }
481 #endif
482
483 826518 int ff_request_frame(AVFilterLink *link)
484 {
485 826518 FilterLinkInternal * const li = ff_link_internal(link);
486
487 FF_TPRINTF_START(NULL, request_frame); ff_tlog_link(NULL, link, 1);
488
489 av_assert1(!fffilter(link->dst->filter)->activate);
490
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 826518 if (li->status_out)
491 11 return li->status_out;
492
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 826507 if (li->status_in) {
493
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 6366 if (ff_framequeue_queued_frames(&li->fifo)) {
494 av_assert1(!li->frame_wanted_out);
495 av_assert1(fffilterctx(link->dst)->ready >= 300);
496 ✗ return 0;
497 } else {
498 /* Acknowledge status change. Filters using ff_request_frame() will
499 handle the change automatically. Filters can also check the
500 status directly but none do yet. */
501 6366 link_set_out_status(link, li->status_in, li->status_in_pts);
502 6366 return li->status_out;
503 }
504 }
505 820141 li->frame_wanted_out = 1;
506 820141 ff_filter_set_ready(link->src, 100);
507 820141 return 0;
508 }
509
510 6358 static int64_t guess_status_pts(AVFilterContext *ctx, int status, AVRational link_time_base)
511 {
512 unsigned i;
513 6358 int64_t r = INT64_MAX;
514
515
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 12715 for (i = 0; i < ctx->nb_inputs; i++) {
516 6357 FilterLinkInternal * const li = ff_link_internal(ctx->inputs[i]);
517
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 6357 if (li->status_out == status)
518 6357 r = FFMIN(r, av_rescale_q(li->l.current_pts, ctx->inputs[i]->time_base, link_time_base));
519 }
520
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 6358 if (r < INT64_MAX)
521 6357 return r;
522 1 av_log(ctx, AV_LOG_WARNING, "EOF timestamp not reliable\n");
523
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 1 for (i = 0; i < ctx->nb_inputs; i++) {
524 ✗ FilterLinkInternal * const li = ff_link_internal(ctx->inputs[i]);
525 ✗ r = FFMIN(r, av_rescale_q(li->status_in_pts, ctx->inputs[i]->time_base, link_time_base));
526 }
527
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 1 if (r < INT64_MAX)
528 ✗ return r;
529 1 return AV_NOPTS_VALUE;
530 }
531
532 826818 static int request_frame_to_filter(AVFilterLink *link)
533 {
534 826818 FilterLinkInternal * const li = ff_link_internal(link);
535 826818 int ret = -1;
536
537 FF_TPRINTF_START(NULL, request_frame_to_filter); ff_tlog_link(NULL, link, 1);
538 /* Assume the filter is blocked, let the method clear it if not */
539 826818 li->frame_blocked_in = 1;
540
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 826818 if (link->srcpad->request_frame)
541 2043 ret = link->srcpad->request_frame(link);
542
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 824775 else if (link->src->inputs[0])
543 824775 ret = ff_request_frame(link->src->inputs[0]);
544
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 826818 if (ret < 0) {
545
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 6358 if (ret != AVERROR(EAGAIN) && ret != li->status_in)
546 6358 ff_avfilter_link_set_in_status(link, ret, guess_status_pts(link->src, ret, link->time_base));
547
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 6358 if (ret == AVERROR_EOF)
548 6358 ret = 0;
549 }
550 826818 return ret;
551 }
552
553 static const char *const var_names[] = {
554 "t",
555 "n",
556 "w",
557 "h",
558 NULL
559 };
560
561 enum {
562 VAR_T,
563 VAR_N,
564 VAR_W,
565 VAR_H,
566 VAR_VARS_NB
567 };
568
569 6 static int set_enable_expr(FFFilterContext *ctxi, const char *expr)
570 {
571 6 AVFilterContext *ctx = &ctxi->p;
572 int ret;
573 char *expr_dup;
574 6 AVExpr *old = ctxi->enable;
575
576
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 6 if (!(ctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)) {
577 ✗ av_log(ctx, AV_LOG_ERROR, "Timeline ('enable' option) not supported "
578 ✗ "with filter '%s'\n", ctx->filter->name);
579 ✗ return AVERROR_PATCHWELCOME;
580 }
581
582 6 expr_dup = av_strdup(expr);
583
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 6 if (!expr_dup)
584 ✗ return AVERROR(ENOMEM);
585
586
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 6 if (!ctxi->var_values) {
587 6 ctxi->var_values = av_calloc(VAR_VARS_NB, sizeof(*ctxi->var_values));
588
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 6 if (!ctxi->var_values) {
589 ✗ av_free(expr_dup);
590 ✗ return AVERROR(ENOMEM);
591 }
592 }
593
594 6 ret = av_expr_parse(&ctxi->enable, expr_dup, var_names,
595 NULL, NULL, NULL, NULL, 0, ctx->priv);
596
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 6 if (ret < 0) {
597 ✗ av_log(ctx->priv, AV_LOG_ERROR,
598 "Error when evaluating the expression '%s' for enable\n",
599 expr_dup);
600 ✗ av_free(expr_dup);
601 ✗ return ret;
602 }
603
604 6 av_expr_free(old);
605 6 av_free(ctx->enable_str);
606 6 ctx->enable_str = expr_dup;
607 6 return 0;
608 }
609
610 ✗ int avfilter_process_command(AVFilterContext *filter, const char *cmd, const char *arg, char *res, int res_len, int flags)
611 {
612 ✗ if(!strcmp(cmd, "ping")){
613 ✗ char local_res[256] = {0};
614
615 ✗ if (!res) {
616 ✗ res = local_res;
617 ✗ res_len = sizeof(local_res);
618 }
619 ✗ av_strlcatf(res, res_len, "pong from:%s %s\n", filter->filter->name, filter->name);
620 ✗ if (res == local_res)
621 ✗ av_log(filter, AV_LOG_INFO, "%s", res);
622 ✗ return 0;
623 ✗ }else if(!strcmp(cmd, "enable")) {
624 ✗ return set_enable_expr(fffilterctx(filter), arg);
625 ✗ }else if (fffilter(filter->filter)->process_command) {
626 ✗ return fffilter(filter->filter)->process_command(filter, cmd, arg, res, res_len, flags);
627 }
628 ✗ return AVERROR(ENOSYS);
629 }
630
631 ✗ unsigned avfilter_filter_pad_count(const AVFilter *filter, int is_output)
632 {
633 ✗ return is_output ? fffilter(filter)->nb_outputs : fffilter(filter)->nb_inputs;
634 }
635
636 662 static const char *default_filter_name(void *filter_ctx)
637 {
638 662 AVFilterContext *ctx = filter_ctx;
639
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 662 return ctx->name ? ctx->name : ctx->filter->name;
640 }
641
642 58358 static void *filter_child_next(void *obj, void *prev)
643 {
644 58358 AVFilterContext *ctx = obj;
645
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 58358 if (!prev && ctx->filter && ctx->filter->priv_class && ctx->priv)
646 58352 return ctx->priv;
647 6 return NULL;
648 }
649
650 ✗ static const AVClass *filter_child_class_iterate(void **iter)
651 {
652 const AVFilter *f;
653
654 ✗ while ((f = av_filter_iterate(iter)))
655 ✗ if (f->priv_class)
656 ✗ return f->priv_class;
657
658 ✗ return NULL;
659 }
660
661 #define OFFSET(x) offsetof(AVFilterContext, x)
662 #define FLAGS AV_OPT_FLAG_FILTERING_PARAM
663 #define TFLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
664 static const AVOption avfilter_options[] = {
665 { "thread_type", "Allowed thread types", OFFSET(thread_type), AV_OPT_TYPE_FLAGS,
666 { .i64 = AVFILTER_THREAD_SLICE }, 0, INT_MAX, FLAGS, .unit = "thread_type" },
667 { "slice", NULL, 0, AV_OPT_TYPE_CONST, { .i64 = AVFILTER_THREAD_SLICE }, .flags = FLAGS, .unit = "thread_type" },
668 { "enable", "set enable expression", OFFSET(enable_str), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = TFLAGS },
669 { "threads", "Allowed number of threads", OFFSET(nb_threads), AV_OPT_TYPE_INT,
670 { .i64 = 0 }, 0, INT_MAX, FLAGS, .unit = "threads" },
671 {"auto", "autodetect a suitable number of threads to use", 0, AV_OPT_TYPE_CONST, {.i64 = 0 }, .flags = FLAGS, .unit = "threads"},
672 { "extra_hw_frames", "Number of extra hardware frames to allocate for the user",
673 OFFSET(extra_hw_frames), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
674 { NULL },
675 };
676
677 static const AVClass avfilter_class = {
678 .class_name = "AVFilter",
679 .item_name = default_filter_name,
680 .version = LIBAVUTIL_VERSION_INT,
681 .category = AV_CLASS_CATEGORY_FILTER,
682 .child_next = filter_child_next,
683 .child_class_iterate = filter_child_class_iterate,
684 .option = avfilter_options,
685 .state_flags_offset = offsetof(FFFilterContext, state_flags),
686 };
687
688 1374 static int default_execute(AVFilterContext *ctx, avfilter_action_func *func, void *arg,
689 int *ret, int nb_jobs)
690 {
691 int i;
692
693
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 2804 for (i = 0; i < nb_jobs; i++) {
694 1430 int r = func(ctx, arg, i, nb_jobs);
695
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 1430 if (ret)
696 ✗ ret[i] = r;
697 }
698 1374 return 0;
699 }
700
701 65091 AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name)
702 {
703 FFFilterContext *ctx;
704 AVFilterContext *ret;
705 65091 const FFFilter *const fi = fffilter(filter);
706 65091 int preinited = 0;
707
708
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 65091 if (!filter)
709 ✗ return NULL;
710
711 65091 ctx = av_mallocz(sizeof(*ctx));
712
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 65091 if (!ctx)
713 ✗ return NULL;
714 65091 ret = &ctx->p;
715
716 65091 ret->av_class = &avfilter_class;
717 65091 ret->filter = filter;
718
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 65091 ret->name = inst_name ? av_strdup(inst_name) : NULL;
719
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 65091 if (fi->priv_size) {
720 58048 ret->priv = av_mallocz(fi->priv_size);
721
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 58048 if (!ret->priv)
722 ✗ goto err;
723 }
724
2/2
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 65091 if (fi->preinit) {
725
1/2
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 13907 if (fi->preinit(ret) < 0)
726 ✗ goto err;
727 13907 preinited = 1;
728 }
729
730 65091 av_opt_set_defaults(ret);
731
2/2
✓ Branch 0 taken 56789 times.
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 65091 if (filter->priv_class) {
732 56789 *(const AVClass**)ret->priv = filter->priv_class;
733 56789 av_opt_set_defaults(ret->priv);
734 }
735
736 65091 ctx->execute = default_execute;
737
738 65091 ret->nb_inputs = fi->nb_inputs;
739
2/2
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 65091 if (ret->nb_inputs ) {
740 55153 ret->input_pads = av_memdup(filter->inputs, ret->nb_inputs * sizeof(*filter->inputs));
741
1/2
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 55153 if (!ret->input_pads)
742 ✗ goto err;
743 55153 ret->inputs = av_calloc(ret->nb_inputs, sizeof(*ret->inputs));
744
1/2
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 55153 if (!ret->inputs)
745 ✗ goto err;
746 }
747
748 65091 ret->nb_outputs = fi->nb_outputs;
749
2/2
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 65091 if (ret->nb_outputs) {
750 56373 ret->output_pads = av_memdup(filter->outputs, ret->nb_outputs * sizeof(*filter->outputs));
751
1/2
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 56373 if (!ret->output_pads)
752 ✗ goto err;
753 56373 ret->outputs = av_calloc(ret->nb_outputs, sizeof(*ret->outputs));
754
1/2
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✓ Branch 1 taken 56373 times.
 56373 if (!ret->outputs)
755 ✗ goto err;
756 }
757
758 65091 return ret;
759
760 ✗ err:
761 ✗ if (preinited)
762 ✗ fi->uninit(ret);
763 ✗ av_freep(&ret->name);
764 ✗ av_freep(&ret->inputs);
765 ✗ av_freep(&ret->input_pads);
766 ✗ ret->nb_inputs = 0;
767 ✗ av_freep(&ret->outputs);
768 ✗ av_freep(&ret->output_pads);
769 ✗ ret->nb_outputs = 0;
770 ✗ av_freep(&ret->priv);
771 ✗ av_free(ret);
772 ✗ return NULL;
773 }
774
775 112416 static void free_link(AVFilterLink *link)
776 {
777
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 112416 if (!link)
778 63975 return;
779
780
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 48441 if (link->src)
781 48309 link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
782
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 48441 if (link->dst)
783 48309 link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
784
785 48441 ff_formats_unref(&link->incfg.formats);
786 48441 ff_formats_unref(&link->outcfg.formats);
787 48441 ff_formats_unref(&link->incfg.color_spaces);
788 48441 ff_formats_unref(&link->outcfg.color_spaces);
789 48441 ff_formats_unref(&link->incfg.color_ranges);
790 48441 ff_formats_unref(&link->outcfg.color_ranges);
791 48441 ff_formats_unref(&link->incfg.alpha_modes);
792 48441 ff_formats_unref(&link->outcfg.alpha_modes);
793 48441 ff_formats_unref(&link->incfg.samplerates);
794 48441 ff_formats_unref(&link->outcfg.samplerates);
795 48441 ff_channel_layouts_unref(&link->incfg.channel_layouts);
796 48441 ff_channel_layouts_unref(&link->outcfg.channel_layouts);
797 48441 link_free(&link);
798 }
799
800 65091 void avfilter_free(AVFilterContext *filter)
801 {
802 FFFilterContext *ctxi;
803 int i;
804
805
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 65091 if (!filter)
806 ✗ return;
807 65091 ctxi = fffilterctx(filter);
808
809
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✗ Branch 1 not taken.
 65091 if (filter->graph)
810 65091 ff_filter_graph_remove_filter(filter->graph, filter);
811
812
2/2
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 65091 if (fffilter(filter->filter)->uninit)
813 50466 fffilter(filter->filter)->uninit(filter);
814
815
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 120635 for (i = 0; i < filter->nb_inputs; i++) {
816 55544 free_link(filter->inputs[i]);
817
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 55544 if (filter->input_pads[i].flags & AVFILTERPAD_FLAG_FREE_NAME)
818 272 av_freep(&filter->input_pads[i].name);
819 }
820
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 121963 for (i = 0; i < filter->nb_outputs; i++) {
821 56872 free_link(filter->outputs[i]);
822
2/2
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 56872 if (filter->output_pads[i].flags & AVFILTERPAD_FLAG_FREE_NAME)
823 489 av_freep(&filter->output_pads[i].name);
824 }
825
826
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 65091 if (filter->filter->priv_class)
827 56789 av_opt_free(filter->priv);
828
829 65091 av_buffer_unref(&filter->hw_device_ctx);
830
831 65091 av_freep(&filter->name);
832 65091 av_freep(&filter->input_pads);
833 65091 av_freep(&filter->output_pads);
834 65091 av_freep(&filter->inputs);
835 65091 av_freep(&filter->outputs);
836 65091 av_freep(&filter->priv);
837
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 65091 while (ctxi->command_queue)
838 ✗ command_queue_pop(filter);
839 65091 av_opt_free(filter);
840 65091 av_expr_free(ctxi->enable);
841 65091 ctxi->enable = NULL;
842 65091 av_freep(&ctxi->var_values);
843 65091 av_free(filter);
844 }
845
846 19570 int ff_filter_get_nb_threads(AVFilterContext *ctx)
847 {
848
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 19570 if (ctx->nb_threads > 0)
849 ✗ return FFMIN(ctx->nb_threads, ctx->graph->nb_threads);
850 19570 return ctx->graph->nb_threads;
851 }
852
853 34698 int ff_filter_opt_parse(void *logctx, const AVClass *priv_class,
854 AVDictionary **options, const char *args)
855 {
856 34698 const AVOption *o = NULL;
857 int ret;
858 34698 int offset= -1;
859
860
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 34698 if (!args)
861 ✗ return 0;
862
863
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 94865 while (*args) {
864 char *parsed_key, *value;
865 const char *key;
866 60167 const char *shorthand = NULL;
867 60167 int additional_flags = 0;
868
869
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 60167 if (priv_class && (o = av_opt_next(&priv_class, o))) {
870
4/4
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 45114 if (o->type == AV_OPT_TYPE_CONST || o->offset == offset)
871 6396 continue;
872 38718 offset = o->offset;
873 38718 shorthand = o->name;
874 }
875
876 53771 ret = av_opt_get_key_value(&args, "=", ":",
877 shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
878 &parsed_key, &value);
879
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 53771 if (ret < 0) {
880 ✗ if (ret == AVERROR(EINVAL))
881 ✗ av_log(logctx, AV_LOG_ERROR, "No option name near '%s'\n", args);
882 else
883 ✗ av_log(logctx, AV_LOG_ERROR, "Unable to parse '%s': %s\n", args,
884 ✗ av_err2str(ret));
885 ✗ return ret;
886 }
887
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 53771 if (*args)
888 28252 args++;
889
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 53771 if (parsed_key) {
890 32609 key = parsed_key;
891 32609 additional_flags = AV_DICT_DONT_STRDUP_KEY;
892 32609 priv_class = NULL; /* reject all remaining shorthand */
893 } else {
894 21162 key = shorthand;
895 }
896
897 53771 av_log(logctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
898
899 53771 av_dict_set(options, key, value,
900 additional_flags | AV_DICT_DONT_STRDUP_VAL | AV_DICT_MULTIKEY);
901 }
902
903 34698 return 0;
904 }
905
906 ✗ int ff_filter_process_command(AVFilterContext *ctx, const char *cmd,
907 const char *arg, char *res, int res_len, int flags)
908 {
909 const AVOption *o;
910
911 ✗ if (!ctx->filter->priv_class)
912 ✗ return 0;
913 ✗ o = av_opt_find2(ctx->priv, cmd, NULL, AV_OPT_FLAG_RUNTIME_PARAM | AV_OPT_FLAG_FILTERING_PARAM, AV_OPT_SEARCH_CHILDREN, NULL);
914 ✗ if (!o)
915 ✗ return AVERROR(ENOSYS);
916 ✗ return av_opt_set(ctx->priv, cmd, arg, 0);
917 }
918
919 65091 int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options)
920 {
921 65091 FFFilterContext *ctxi = fffilterctx(ctx);
922 65091 int ret = 0;
923
924
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 65091 if (ctxi->state_flags & AV_CLASS_STATE_INITIALIZED) {
925 ✗ av_log(ctx, AV_LOG_ERROR, "Filter already initialized\n");
926 ✗ return AVERROR(EINVAL);
927 }
928
929 65091 ret = av_opt_set_dict2(ctx, options, AV_OPT_SEARCH_CHILDREN);
930
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 65091 if (ret < 0) {
931 ✗ av_log(ctx, AV_LOG_ERROR, "Error applying generic filter options.\n");
932 ✗ return ret;
933 }
934
935
2/2
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✓ Branch 1 taken 63827 times.
 65091 if (ctx->filter->flags & AVFILTER_FLAG_SLICE_THREADS &&
936
2/2
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✓ Branch 1 taken 1105 times.
 1264 ctx->thread_type & ctx->graph->thread_type & AVFILTER_THREAD_SLICE &&
937
1/2
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✗ Branch 2 not taken.
 159 fffiltergraph(ctx->graph)->thread_execute) {
938 159 ctx->thread_type = AVFILTER_THREAD_SLICE;
939 159 ctxi->execute = fffiltergraph(ctx->graph)->thread_execute;
940 } else {
941 64932 ctx->thread_type = 0;
942 }
943
944
2/2
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✓ Branch 2 taken 13792 times.
 65091 if (fffilter(ctx->filter)->init)
945 51299 ret = fffilter(ctx->filter)->init(ctx);
946
2/2
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✓ Branch 1 taken 65090 times.
 65091 if (ret < 0)
947 1 return ret;
948
949
2/2
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 65090 if (ctx->enable_str) {
950 6 ret = set_enable_expr(ctxi, ctx->enable_str);
951
1/2
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✓ Branch 1 taken 6 times.
 6 if (ret < 0)
952 ✗ return ret;
953 }
954
955 65090 ctxi->state_flags |= AV_CLASS_STATE_INITIALIZED;
956
957 65090 return 0;
958 }
959
960 21651 int avfilter_init_str(AVFilterContext *filter, const char *args)
961 {
962 21651 AVDictionary *options = NULL;
963 const AVDictionaryEntry *e;
964 21651 int ret = 0;
965
966
3/4
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 21651 if (args && *args) {
967 10757 ret = ff_filter_opt_parse(filter, filter->filter->priv_class, &options, args);
968
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10757 times.
 10757 if (ret < 0)
969 ✗ goto fail;
970 }
971
972 21651 ret = avfilter_init_dict(filter, &options);
973
1/2
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✓ Branch 1 taken 21651 times.
 21651 if (ret < 0)
974 ✗ goto fail;
975
976
1/2
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✗ Branch 2 not taken.
 21651 if ((e = av_dict_iterate(options, NULL))) {
977 ✗ av_log(filter, AV_LOG_ERROR, "No such option: %s.\n", e->key);
978 ✗ ret = AVERROR_OPTION_NOT_FOUND;
979 ✗ goto fail;
980 }
981
982 21651 fail:
983 21651 av_dict_free(&options);
984
985 21651 return ret;
986 }
987
988 15527 const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx)
989 {
990 15527 return pads[pad_idx].name;
991 }
992
993 31620 enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx)
994 {
995 31620 return pads[pad_idx].type;
996 }
997
998 ✗ AVBufferRef *avfilter_link_get_hw_frames_ctx(AVFilterLink *link)
999 {
1000 ✗ FilterLink *plink = ff_filter_link(link);
1001 ✗ if (plink->hw_frames_ctx)
1002 ✗ return av_buffer_ref(plink->hw_frames_ctx);
1003
1004 ✗ return NULL;
1005 }
1006
1007 808255 static int default_filter_frame(AVFilterLink *link, AVFrame *frame)
1008 {
1009 808255 return ff_filter_frame(link->dst->outputs[0], frame);
1010 }
1011
1012 /**
1013 * Evaluate the timeline expression of the link for the time and properties
1014 * of the frame.
1015 * @return >0 if enabled, 0 if disabled
1016 * @note It does not update link->dst->is_disabled.
1017 */
1018 2567379 static int evaluate_timeline_at_frame(AVFilterLink *link, const AVFrame *frame)
1019 {
1020 2567379 FilterLink *l = ff_filter_link(link);
1021 2567379 AVFilterContext *dstctx = link->dst;
1022 2567379 FFFilterContext *dsti = fffilterctx(dstctx);
1023 2567379 int64_t pts = frame->pts;
1024
1025
2/2
✓ Branch 0 taken 2567181 times.
✓ Branch 1 taken 198 times.
 2567379 if (!dstctx->enable_str)
1026 2567181 return 1;
1027
1028 198 dsti->var_values[VAR_N] = l->frame_count_out;
1029
1/2
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✗ Branch 1 not taken.
 198 dsti->var_values[VAR_T] = pts == AV_NOPTS_VALUE ? NAN : pts * av_q2d(link->time_base);
1030 198 dsti->var_values[VAR_W] = link->w;
1031 198 dsti->var_values[VAR_H] = link->h;
1032
1033 198 return fabs(av_expr_eval(dsti->enable, dsti->var_values, NULL)) >= 0.5;
1034 }
1035
1036 829048 static int filter_frame_framed(AVFilterLink *link, AVFrame *frame)
1037 {
1038 829048 FilterLink *l = ff_filter_link(link);
1039 int (*filter_frame)(AVFilterLink *, AVFrame *);
1040 829048 AVFilterContext *dstctx = link->dst;
1041 829048 AVFilterPad *dst = link->dstpad;
1042 int ret;
1043
1044
2/2
✓ Branch 0 taken 808246 times.
✓ Branch 1 taken 20802 times.
 829048 if (!(filter_frame = dst->filter_frame))
1045 808246 filter_frame = default_filter_frame;
1046
1047
2/2
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✓ Branch 1 taken 826055 times.
 829048 if (dst->flags & AVFILTERPAD_FLAG_NEEDS_WRITABLE) {
1048 2993 ret = ff_inlink_make_frame_writable(link, &frame);
1049
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✗ Branch 0 not taken.
✓ Branch 1 taken 2993 times.
 2993 if (ret < 0)
1050 ✗ goto fail;
1051 }
1052
1053 829048 ff_inlink_process_commands(link, frame);
1054 829048 dstctx->is_disabled = !evaluate_timeline_at_frame(link, frame);
1055
1056
2/2
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 829048 if (dstctx->is_disabled &&
1057
2/2
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✓ Branch 1 taken 10 times.
 19 (dstctx->filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC))
1058 9 filter_frame = default_filter_frame;
1059 829048 ret = filter_frame(link, frame);
1060 829048 l->frame_count_out++;
1061 829048 return ret;
1062
1063 ✗ fail:
1064 ✗ av_frame_free(&frame);
1065 ✗ return ret;
1066 }
1067
1068 1743642 int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
1069 {
1070 1743642 FilterLinkInternal * const li = ff_link_internal(link);
1071 int ret;
1072 1743642 FF_TPRINTF_START(NULL, filter_frame); ff_tlog_link(NULL, link, 1); ff_tlog(NULL, " "); tlog_ref(NULL, frame, 1);
1073
1074 /* Consistency checks */
1075
2/2
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 1743642 if (link->type == AVMEDIA_TYPE_VIDEO) {
1076
2/2
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✓ Branch 1 taken 150399 times.
 586936 if (strcmp(link->dst->filter->name, "buffersink") &&
1077
2/2
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✓ Branch 1 taken 176385 times.
 436537 strcmp(link->dst->filter->name, "format") &&
1078
2/2
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✓ Branch 1 taken 27 times.
 260152 strcmp(link->dst->filter->name, "idet") &&
1079
2/2
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✓ Branch 1 taken 91675 times.
 260125 strcmp(link->dst->filter->name, "null") &&
1080
2/2
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✓ Branch 1 taken 110593 times.
 168450 strcmp(link->dst->filter->name, "scale") &&
1081
1/2
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✗ Branch 1 not taken.
 57857 strcmp(link->dst->filter->name, "libplacebo") &&
1082
2/2
✓ Branch 0 taken 57734 times.
✓ Branch 1 taken 123 times.
 57857 strcmp(link->dst->filter->name, "hqdn3d")) {
1083 av_assert1(frame->format == link->format);
1084 av_assert1(frame->width == link->w);
1085 av_assert1(frame->height == link->h);
1086 57734 if (av_pix_fmt_desc_get(link->format)->flags & AV_PIX_FMT_FLAG_ALPHA)
1087 av_assert1(frame->alpha_mode == link->alpha_mode);
1088 }
1089 } else {
1090
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✗ Branch 0 not taken.
✓ Branch 1 taken 1156706 times.
 1156706 if (frame->format != link->format) {
1091 ✗ av_log(link->dst, AV_LOG_ERROR, "Format change is not supported\n");
1092 ✗ goto error;
1093 }
1094
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 1156706 times.
 1156706 if (av_channel_layout_compare(&frame->ch_layout, &link->ch_layout)) {
1095 ✗ av_log(link->dst, AV_LOG_ERROR, "Channel layout change is not supported\n");
1096 ✗ goto error;
1097 }
1098
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 1156706 if (frame->sample_rate != link->sample_rate) {
1099 ✗ av_log(link->dst, AV_LOG_ERROR, "Sample rate change is not supported\n");
1100 ✗ goto error;
1101 }
1102
1103 1156706 frame->duration = av_rescale_q(frame->nb_samples, (AVRational){ 1, frame->sample_rate },
1104 link->time_base);
1105 }
1106
1107 1743642 li->frame_blocked_in = li->frame_wanted_out = 0;
1108 1743642 li->l.frame_count_in++;
1109 1743642 li->l.sample_count_in += frame->nb_samples;
1110 1743642 filter_unblock(link->dst);
1111 1743642 ret = ff_framequeue_add(&li->fifo, frame);
1112
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✓ Branch 1 taken 1743642 times.
 1743642 if (ret < 0) {
1113 ✗ const FFFrameQueueGlobal *global = li->fifo.global;
1114 ✗ if (ret == AVERROR(ENOMEM) && global->queued >= global->max_queued)
1115 ✗ av_log(link->dst, AV_LOG_ERROR, "Exhausted frame queue capacity (%zu frames)\n", global->max_queued);
1116 ✗ av_frame_free(&frame);
1117 ✗ return ret;
1118 }
1119 1743642 ff_filter_set_ready(link->dst, 300);
1120 1743642 return 0;
1121
1122 ✗ error:
1123 ✗ av_frame_free(&frame);
1124 ✗ return AVERROR_PATCHWELCOME;
1125 }
1126
1127 2479502 static int samples_ready(FilterLinkInternal *link, unsigned min)
1128 {
1129
2/2
✓ Branch 1 taken 829182 times.
✓ Branch 2 taken 1650320 times.
 3308684 return ff_framequeue_queued_frames(&link->fifo) &&
1130
2/2
✓ Branch 1 taken 135 times.
✓ Branch 2 taken 829047 times.
 829182 (ff_framequeue_queued_samples(&link->fifo) >= min ||
1131
2/2
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✓ Branch 1 taken 134 times.
 135 link->status_in);
1132 }
1133
1134 2943 static int take_samples(FilterLinkInternal *li, unsigned min, unsigned max,
1135 AVFrame **rframe)
1136 {
1137 2943 FilterLink *l = &li->l;
1138 2943 AVFilterLink *link = &l->pub;
1139 AVFrame *frame0, *frame, *buf;
1140 unsigned nb_samples, nb_frames, i, p;
1141 int ret;
1142
1143 /* Note: this function relies on no format changes and must only be
1144 called with enough samples. */
1145 av_assert1(samples_ready(li, l->min_samples));
1146 2943 frame0 = frame = ff_framequeue_peek(&li->fifo, 0);
1147
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✓ Branch 3 taken 116 times.
✓ Branch 4 taken 1032 times.
✓ Branch 5 taken 277 times.
 2943 if (!li->fifo.samples_skipped && frame->nb_samples >= min && frame->nb_samples <= max) {
1148 1032 *rframe = ff_framequeue_take(&li->fifo);
1149 1032 return 0;
1150 }
1151 1911 nb_frames = 0;
1152 1911 nb_samples = 0;
1153 while (1) {
1154
2/2
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✓ Branch 1 taken 1482 times.
 3124 if (nb_samples + frame->nb_samples > max) {
1155
2/2
✓ Branch 0 taken 1522 times.
✓ Branch 1 taken 120 times.
 1642 if (nb_samples < min)
1156 1522 nb_samples = max;
1157 1642 break;
1158 }
1159 1482 nb_samples += frame->nb_samples;
1160 1482 nb_frames++;
1161
2/2
✓ Branch 1 taken 269 times.
✓ Branch 2 taken 1213 times.
 1482 if (nb_frames == ff_framequeue_queued_frames(&li->fifo))
1162 269 break;
1163 1213 frame = ff_framequeue_peek(&li->fifo, nb_frames);
1164 }
1165
1166 1911 buf = ff_get_audio_buffer(link, nb_samples);
1167
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✗ Branch 0 not taken.
✓ Branch 1 taken 1911 times.
 1911 if (!buf)
1168 ✗ return AVERROR(ENOMEM);
1169 1911 ret = av_frame_copy_props(buf, frame0);
1170
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✗ Branch 0 not taken.
✓ Branch 1 taken 1911 times.
 1911 if (ret < 0) {
1171 ✗ av_frame_free(&buf);
1172 ✗ return ret;
1173 }
1174
1175 1911 p = 0;
1176
2/2
✓ Branch 0 taken 1482 times.
✓ Branch 1 taken 1911 times.
 3393 for (i = 0; i < nb_frames; i++) {
1177 1482 frame = ff_framequeue_take(&li->fifo);
1178 1482 av_samples_copy(buf->extended_data, frame->extended_data, p, 0,
1179 1482 frame->nb_samples, link->ch_layout.nb_channels, link->format);
1180 1482 p += frame->nb_samples;
1181 1482 av_frame_free(&frame);
1182 }
1183
2/2
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✓ Branch 1 taken 389 times.
 1911 if (p < nb_samples) {
1184 1522 unsigned n = nb_samples - p;
1185 1522 frame = ff_framequeue_peek(&li->fifo, 0);
1186 1522 av_samples_copy(buf->extended_data, frame->extended_data, p, 0, n,
1187 1522 link->ch_layout.nb_channels, link->format);
1188 1522 ff_framequeue_skip_samples(&li->fifo, n, link->time_base);
1189 }
1190
1191 1911 *rframe = buf;
1192 1911 return 0;
1193 }
1194
1195 829048 static int filter_frame_to_filter(AVFilterLink *link)
1196 {
1197 829048 FilterLinkInternal * const li = ff_link_internal(link);
1198 829048 AVFrame *frame = NULL;
1199 829048 AVFilterContext *dst = link->dst;
1200 int ret;
1201
1202 av_assert1(ff_framequeue_queued_frames(&li->fifo));
1203 1658096 ret = li->l.min_samples ?
1204
2/2
✓ Branch 0 taken 36 times.
✓ Branch 1 taken 829012 times.
 829048 ff_inlink_consume_samples(link, li->l.min_samples, li->l.max_samples, &frame) :
1205 829012 ff_inlink_consume_frame(link, &frame);
1206 av_assert1(ret);
1207
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 829048 if (ret < 0) {
1208 av_assert1(!frame);
1209 ✗ return ret;
1210 }
1211 /* The filter will soon have received a new frame, that may allow it to
1212 produce one or more: unblock its outputs. */
1213 829048 filter_unblock(dst);
1214 /* AVFilterPad.filter_frame() expect frame_count_out to have the value
1215 before the frame; filter_frame_framed() will re-increment it. */
1216 829048 li->l.frame_count_out--;
1217 829048 ret = filter_frame_framed(link, frame);
1218
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 829048 if (ret < 0 && ret != li->status_out) {
1219 ✗ link_set_out_status(link, ret, AV_NOPTS_VALUE);
1220 } else {
1221 /* Run once again, to see if several frames were available, or if
1222 the input status has also changed, or any other reason. */
1223 829048 ff_filter_set_ready(dst, 300);
1224 }
1225 829048 return ret;
1226 }
1227
1228 6366 static int forward_status_change(AVFilterContext *filter, FilterLinkInternal *li_in)
1229 {
1230 6366 AVFilterLink *in = &li_in->l.pub;
1231 6366 unsigned out = 0, progress = 0;
1232 int ret;
1233
1234
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✓ Branch 1 taken 6366 times.
 6366 av_assert0(!li_in->status_out);
1235
2/2
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✓ Branch 1 taken 6365 times.
 6366 if (!filter->nb_outputs) {
1236 /* not necessary with the current API and sinks */
1237 1 return 0;
1238 }
1239
2/2
✓ Branch 0 taken 6365 times.
✓ Branch 1 taken 6365 times.
 12730 while (!li_in->status_out) {
1240 6365 FilterLinkInternal *li_out = ff_link_internal(filter->outputs[out]);
1241
1242
1/2
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✗ Branch 1 not taken.
 6365 if (!li_out->status_in) {
1243 6365 progress++;
1244 6365 ret = request_frame_to_filter(filter->outputs[out]);
1245
1/2
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✓ Branch 1 taken 6365 times.
 6365 if (ret < 0)
1246 ✗ return ret;
1247 }
1248
1/2
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✗ Branch 1 not taken.
 6365 if (++out == filter->nb_outputs) {
1249
1/2
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✓ Branch 1 taken 6365 times.
 6365 if (!progress) {
1250 /* Every output already closed: input no longer interesting
1251 (example: overlay in shortest mode, other input closed). */
1252 ✗ link_set_out_status(in, li_in->status_in, li_in->status_in_pts);
1253 ✗ return 0;
1254 }
1255 6365 progress = 0;
1256 6365 out = 0;
1257 }
1258 }
1259 6365 ff_filter_set_ready(filter, 200);
1260 6365 return 0;
1261 }
1262
1263 2487030 static int filter_activate_default(AVFilterContext *filter)
1264 {
1265 unsigned i;
1266 2487030 int nb_eofs = 0;
1267
1268
2/2
✓ Branch 0 taken 2486973 times.
✓ Branch 1 taken 2487030 times.
 4974003 for (i = 0; i < filter->nb_outputs; i++)
1269 2486973 nb_eofs += ff_outlink_get_status(filter->outputs[i]) == AVERROR_EOF;
1270
4/4
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✓ Branch 1 taken 57 times.
✓ Branch 2 taken 7264 times.
✓ Branch 3 taken 2479709 times.
 2487030 if (filter->nb_outputs && nb_eofs == filter->nb_outputs) {
1271
2/2
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✓ Branch 1 taken 7264 times.
 14528 for (int j = 0; j < filter->nb_inputs; j++)
1272 7264 ff_inlink_set_status(filter->inputs[j], AVERROR_EOF);
1273 7264 return 0;
1274 }
1275
1276
2/2
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✓ Branch 1 taken 1650718 times.
 4130220 for (i = 0; i < filter->nb_inputs; i++) {
1277 2479502 FilterLinkInternal *li = ff_link_internal(filter->inputs[i]);
1278
2/2
✓ Branch 1 taken 829048 times.
✓ Branch 2 taken 1650454 times.
 2479502 if (samples_ready(li, li->l.min_samples)) {
1279 829048 return filter_frame_to_filter(filter->inputs[i]);
1280 }
1281 }
1282
2/2
✓ Branch 0 taken 1650454 times.
✓ Branch 1 taken 1644352 times.
 3294806 for (i = 0; i < filter->nb_inputs; i++) {
1283 1650454 FilterLinkInternal * const li = ff_link_internal(filter->inputs[i]);
1284
4/4
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✓ Branch 1 taken 1644053 times.
✓ Branch 2 taken 6366 times.
✓ Branch 3 taken 35 times.
 1650454 if (li->status_in && !li->status_out) {
1285 av_assert1(!ff_framequeue_queued_frames(&li->fifo));
1286 6366 return forward_status_change(filter, li);
1287 }
1288 }
1289
2/2
✓ Branch 0 taken 1644324 times.
✓ Branch 1 taken 828931 times.
 2473255 for (i = 0; i < filter->nb_outputs; i++) {
1290 1644324 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
1291
2/2
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✓ Branch 1 taken 823871 times.
 1644324 if (li->frame_wanted_out &&
1292
2/2
✓ Branch 0 taken 815421 times.
✓ Branch 1 taken 5032 times.
 820453 !li->frame_blocked_in) {
1293 815421 return request_frame_to_filter(filter->outputs[i]);
1294 }
1295 }
1296
2/2
✓ Branch 0 taken 828903 times.
✓ Branch 1 taken 823899 times.
 1652802 for (i = 0; i < filter->nb_outputs; i++) {
1297 828903 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
1298
2/2
✓ Branch 0 taken 5032 times.
✓ Branch 1 taken 823871 times.
 828903 if (li->frame_wanted_out)
1299 5032 return request_frame_to_filter(filter->outputs[i]);
1300 }
1301
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 823871 times.
 823899 if (!filter->nb_outputs) {
1302 28 ff_inlink_request_frame(filter->inputs[0]);
1303 28 return 0;
1304 }
1305 823871 return FFERROR_NOT_READY;
1306 }
1307
1308 /*
1309 Filter scheduling and activation
1310
1311 When a filter is activated, it must:
1312 - if possible, output a frame;
1313 - else, if relevant, forward the input status change;
1314 - else, check outputs for wanted frames and forward the requests.
1315
1316 The following AVFilterLink fields are used for activation:
1317
1318 - frame_wanted_out:
1319
1320 This field indicates if a frame is needed on this input of the
1321 destination filter. A positive value indicates that a frame is needed
1322 to process queued frames or internal data or to satisfy the
1323 application; a zero value indicates that a frame is not especially
1324 needed but could be processed anyway; a negative value indicates that a
1325 frame would just be queued.
1326
1327 It is set by filters using ff_request_frame() or ff_request_no_frame(),
1328 when requested by the application through a specific API or when it is
1329 set on one of the outputs.
1330
1331 It is cleared when a frame is sent from the source using
1332 ff_filter_frame().
1333
1334 It is also cleared when a status change is sent from the source using
1335 ff_avfilter_link_set_in_status().
1336
1337 - frame_blocked_in:
1338
1339 This field means that the source filter can not generate a frame as is.
1340 Its goal is to avoid repeatedly calling the request_frame() method on
1341 the same link.
1342
1343 It is set by the framework on all outputs of a filter before activating it.
1344
1345 It is automatically cleared by ff_filter_frame().
1346
1347 It is also automatically cleared by ff_avfilter_link_set_in_status().
1348
1349 It is also cleared on all outputs (using filter_unblock()) when
1350 something happens on an input: processing a frame or changing the
1351 status.
1352
1353 - fifo:
1354
1355 Contains the frames queued on a filter input. If it contains frames and
1356 frame_wanted_out is not set, then the filter can be activated. If that
1357 result in the filter not able to use these frames, the filter must set
1358 frame_wanted_out to ask for more frames.
1359
1360 - status_in and status_in_pts:
1361
1362 Status (EOF or error code) of the link and timestamp of the status
1363 change (in link time base, same as frames) as seen from the input of
1364 the link. The status change is considered happening after the frames
1365 queued in fifo.
1366
1367 It is set by the source filter using ff_avfilter_link_set_in_status().
1368
1369 - status_out:
1370
1371 Status of the link as seen from the output of the link. The status
1372 change is considered having already happened.
1373
1374 It is set by the destination filter using
1375 link_set_out_status().
1376
1377 Filters are activated according to the ready field, set using the
1378 ff_filter_set_ready(). Eventually, a priority queue will be used.
1379 ff_filter_set_ready() is called whenever anything could cause progress to
1380 be possible. Marking a filter ready when it is not is not a problem,
1381 except for the small overhead it causes.
1382
1383 Conditions that cause a filter to be marked ready are:
1384
1385 - frames added on an input link;
1386
1387 - changes in the input or output status of an input link;
1388
1389 - requests for a frame on an output link;
1390
1391 - after any actual processing using the legacy methods (filter_frame(),
1392 and request_frame() to acknowledge status changes), to run once more
1393 and check if enough input was present for several frames.
1394
1395 Examples of scenarios to consider:
1396
1397 - buffersrc: activate if frame_wanted_out to notify the application;
1398 activate when the application adds a frame to push it immediately.
1399
1400 - testsrc: activate only if frame_wanted_out to produce and push a frame.
1401
1402 - concat (not at stitch points): can process a frame on any output.
1403 Activate if frame_wanted_out on output to forward on the corresponding
1404 input. Activate when a frame is present on input to process it
1405 immediately.
1406
1407 - framesync: needs at least one frame on each input; extra frames on the
1408 wrong input will accumulate. When a frame is first added on one input,
1409 set frame_wanted_out<0 on it to avoid getting more (would trigger
1410 testsrc) and frame_wanted_out>0 on the other to allow processing it.
1411
1412 Activation of old filters:
1413
1414 In order to activate a filter implementing the legacy filter_frame() and
1415 request_frame() methods, perform the first possible of the following
1416 actions:
1417
1418 - If an input has frames in fifo and frame_wanted_out == 0, dequeue a
1419 frame and call filter_frame().
1420
1421 Rationale: filter frames as soon as possible instead of leaving them
1422 queued; frame_wanted_out < 0 is not possible since the old API does not
1423 set it nor provides any similar feedback; frame_wanted_out > 0 happens
1424 when min_samples > 0 and there are not enough samples queued.
1425
1426 - If an input has status_in set but not status_out, try to call
1427 request_frame() on one of the outputs in the hope that it will trigger
1428 request_frame() on the input with status_in and acknowledge it. This is
1429 awkward and fragile, filters with several inputs or outputs should be
1430 updated to direct activation as soon as possible.
1431
1432 - If an output has frame_wanted_out > 0 and not frame_blocked_in, call
1433 request_frame().
1434
1435 Rationale: checking frame_blocked_in is necessary to avoid requesting
1436 repeatedly on a blocked input if another is not blocked (example:
1437 [buffersrc1][testsrc1][buffersrc2][testsrc2]concat=v=2).
1438
1439 - If an output has frame_wanted_out > 0 call request_frame().
1440
1441 Rationale: even if all inputs are blocked an activate callback should
1442 request a frame on some if its inputs if a frame is requested on any of
1443 its output.
1444
1445 - Request a frame on the input for sinks.
1446
1447 Rationale: sinks using the old api have no way to request a frame on their
1448 input, so we need to do it for them.
1449 */
1450
1451 4326892 int ff_filter_activate(AVFilterContext *filter)
1452 {
1453 4326892 FFFilterContext *ctxi = fffilterctx(filter);
1454 4326892 const FFFilter *const fi = fffilter(filter->filter);
1455 int ret;
1456
1457 /* Generic timeline support is not yet implemented but should be easy */
1458 av_assert1(!(fi->p.flags & AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC &&
1459 fi->activate));
1460 4326892 ctxi->ready = 0;
1461
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 4326892 ret = fi->activate ? fi->activate(filter) : filter_activate_default(filter);
1462
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 4326892 if (ret == FFERROR_NOT_READY)
1463 824751 ret = 0;
1464 4326892 return ret;
1465 }
1466
1467 3911620 int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
1468 {
1469 3911620 FilterLinkInternal * const li = ff_link_internal(link);
1470 3911620 *rpts = li->l.current_pts;
1471
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 3911620 if (ff_framequeue_queued_frames(&li->fifo))
1472 2187 return *rstatus = 0;
1473
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 3909433 if (li->status_out)
1474 8115 return *rstatus = li->status_out;
1475
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 3901318 if (!li->status_in)
1476 3892914 return *rstatus = 0;
1477 8404 *rstatus = li->status_out = li->status_in;
1478 8404 update_link_current_pts(li, li->status_in_pts);
1479 8404 *rpts = li->l.current_pts;
1480 8404 return 1;
1481 }
1482
1483 1934 size_t ff_inlink_queued_frames(AVFilterLink *link)
1484 {
1485 1934 FilterLinkInternal * const li = ff_link_internal(link);
1486 1934 return ff_framequeue_queued_frames(&li->fifo);
1487 }
1488
1489 5642383 int ff_inlink_check_available_frame(AVFilterLink *link)
1490 {
1491 5642383 FilterLinkInternal * const li = ff_link_internal(link);
1492 5642383 return ff_framequeue_queued_frames(&li->fifo) > 0;
1493 }
1494
1495 8610 int ff_inlink_queued_samples(AVFilterLink *link)
1496 {
1497 8610 FilterLinkInternal * const li = ff_link_internal(link);
1498 8610 return ff_framequeue_queued_samples(&li->fifo);
1499 }
1500
1501 4893 int ff_inlink_check_available_samples(AVFilterLink *link, unsigned min)
1502 {
1503 4893 FilterLinkInternal * const li = ff_link_internal(link);
1504 4893 uint64_t samples = ff_framequeue_queued_samples(&li->fifo);
1505 av_assert1(min);
1506
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 4893 return samples >= min || (li->status_in && samples);
1507 }
1508
1509 1741066 static void consume_update(FilterLinkInternal *li, const AVFrame *frame)
1510 {
1511 1741066 AVFilterLink *const link = &li->l.pub;
1512 1741066 update_link_current_pts(li, frame->pts);
1513 1741066 ff_inlink_process_commands(link, frame);
1514
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 1741066 if (link == link->dst->inputs[0])
1515 1738331 link->dst->is_disabled = !evaluate_timeline_at_frame(link, frame);
1516 1741066 li->l.frame_count_out++;
1517 1741066 li->l.sample_count_out += frame->nb_samples;
1518 1741066 }
1519
1520 5640122 int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
1521 {
1522 5640122 FilterLinkInternal * const li = ff_link_internal(link);
1523 AVFrame *frame;
1524
1525 5640122 *rframe = NULL;
1526
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 5640122 if (!ff_inlink_check_available_frame(link))
1527 3901995 return 0;
1528
1529
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 1738127 if (li->fifo.samples_skipped) {
1530 4 frame = ff_framequeue_peek(&li->fifo, 0);
1531 4 return ff_inlink_consume_samples(link, frame->nb_samples, frame->nb_samples, rframe);
1532 }
1533
1534 1738123 frame = ff_framequeue_take(&li->fifo);
1535 1738123 consume_update(li, frame);
1536 1738123 *rframe = frame;
1537 1738123 return 1;
1538 }
1539
1540 4889 int ff_inlink_consume_samples(AVFilterLink *link, unsigned min, unsigned max,
1541 AVFrame **rframe)
1542 {
1543 4889 FilterLinkInternal * const li = ff_link_internal(link);
1544 AVFrame *frame;
1545 int ret;
1546
1547 av_assert1(min);
1548 4889 *rframe = NULL;
1549
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 4889 if (!ff_inlink_check_available_samples(link, min))
1550 1946 return 0;
1551
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 2943 if (li->status_in)
1552
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 22 min = FFMIN(min, ff_framequeue_queued_samples(&li->fifo));
1553 2943 ret = take_samples(li, min, max, &frame);
1554
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 2943 if (ret < 0)
1555 ✗ return ret;
1556 2943 consume_update(li, frame);
1557 2943 *rframe = frame;
1558 2943 return 1;
1559 }
1560
1561 210 AVFrame *ff_inlink_peek_frame(AVFilterLink *link, size_t idx)
1562 {
1563 210 FilterLinkInternal * const li = ff_link_internal(link);
1564 210 return ff_framequeue_peek(&li->fifo, idx);
1565 }
1566
1567 5184 int ff_inlink_make_frame_writable(AVFilterLink *link, AVFrame **rframe)
1568 {
1569 5184 AVFrame *frame = *rframe;
1570 AVFrame *out;
1571 int ret;
1572
1573
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 5184 if (av_frame_is_writable(frame))
1574 2285 return 0;
1575 2899 av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n");
1576
1577
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 2899 switch (link->type) {
1578 2899 case AVMEDIA_TYPE_VIDEO:
1579 2899 out = ff_get_video_buffer(link, link->w, link->h);
1580 2899 break;
1581 ✗ case AVMEDIA_TYPE_AUDIO:
1582 ✗ out = ff_get_audio_buffer(link, frame->nb_samples);
1583 ✗ break;
1584 ✗ default:
1585 ✗ return AVERROR(EINVAL);
1586 }
1587
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 2899 if (!out)
1588 ✗ return AVERROR(ENOMEM);
1589
1590 2899 ret = av_frame_copy_props(out, frame);
1591
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 2899 if (ret < 0) {
1592 ✗ av_frame_free(&out);
1593 ✗ return ret;
1594 }
1595
1596 2899 ret = av_frame_copy(out, frame);
1597
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 2899 if (ret < 0) {
1598 ✗ av_frame_free(&out);
1599 ✗ return ret;
1600 }
1601
1602 2899 av_frame_free(&frame);
1603 2899 *rframe = out;
1604 2899 return 0;
1605 }
1606
1607 2570114 int ff_inlink_process_commands(AVFilterLink *link, const AVFrame *frame)
1608 {
1609 2570114 FFFilterContext *ctxi = fffilterctx(link->dst);
1610 2570114 AVFilterCommand *cmd = ctxi->command_queue;
1611
1612
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 2570114 while(cmd && cmd->time <= frame->pts * av_q2d(link->time_base)){
1613 ✗ av_log(link->dst, AV_LOG_DEBUG,
1614 "Processing command time:%f command:%s arg:%s\n",
1615 cmd->time, cmd->command, cmd->arg);
1616 ✗ avfilter_process_command(link->dst, cmd->command, cmd->arg, 0, 0, cmd->flags);
1617 ✗ command_queue_pop(link->dst);
1618 ✗ cmd = ctxi->command_queue;
1619 }
1620 2570114 return 0;
1621 }
1622
1623 912317 void ff_inlink_request_frame(AVFilterLink *link)
1624 {
1625 912317 av_unused FilterLinkInternal *li = ff_link_internal(link);
1626 av_assert1(!li->status_in);
1627 av_assert1(!li->status_out);
1628 912317 li->frame_wanted_out = 1;
1629 912317 ff_filter_set_ready(link->src, 100);
1630 912317 }
1631
1632 11568 void ff_inlink_set_status(AVFilterLink *link, int status)
1633 {
1634 11568 FilterLinkInternal * const li = ff_link_internal(link);
1635
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 11568 if (li->status_out)
1636 9026 return;
1637 2542 li->frame_wanted_out = 0;
1638 2542 li->frame_blocked_in = 0;
1639 2542 link_set_out_status(link, status, AV_NOPTS_VALUE);
1640
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 2554 while (ff_framequeue_queued_frames(&li->fifo)) {
1641 12 AVFrame *frame = ff_framequeue_take(&li->fifo);
1642 12 av_frame_free(&frame);
1643 }
1644
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 2542 if (!li->status_in)
1645 2537 li->status_in = status;
1646 }
1647
1648 4256162 int ff_outlink_get_status(AVFilterLink *link)
1649 {
1650 4256162 FilterLinkInternal * const li = ff_link_internal(link);
1651 4256162 return li->status_in;
1652 }
1653
1654 1776 int ff_inoutlink_check_flow(AVFilterLink *inlink, AVFilterLink *outlink)
1655 {
1656 1776 FilterLinkInternal * const li_in = ff_link_internal(inlink);
1657
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 2902 return ff_outlink_frame_wanted(outlink) ||
1658
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 2902 ff_inlink_check_available_frame(inlink) ||
1659
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 1056 li_in->status_out;
1660 }
1661
1662
1663 ✗ const AVClass *avfilter_get_class(void)
1664 {
1665 ✗ return &avfilter_class;
1666 }
1667
1668 ✗ int ff_filter_init_hw_frames(AVFilterContext *avctx, AVFilterLink *link,
1669 int default_pool_size)
1670 {
1671 ✗ FilterLink *l = ff_filter_link(link);
1672 AVHWFramesContext *frames;
1673
1674 // Must already be set by caller.
1675 ✗ av_assert0(l->hw_frames_ctx);
1676
1677 ✗ frames = (AVHWFramesContext*)l->hw_frames_ctx->data;
1678
1679 ✗ if (frames->initial_pool_size == 0) {
1680 // Dynamic allocation is necessarily supported.
1681 ✗ } else if (avctx->extra_hw_frames >= 0) {
1682 ✗ frames->initial_pool_size += avctx->extra_hw_frames;
1683 } else {
1684 ✗ frames->initial_pool_size = default_pool_size;
1685 }
1686
1687 ✗ return 0;
1688 }
1689
1690 496210 int ff_outlink_frame_wanted(AVFilterLink *link)
1691 {
1692 496210 FilterLinkInternal * const li = ff_link_internal(link);
1693 496210 return li->frame_wanted_out;
1694 }
1695
1696 5114 int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func,
1697 void *arg, int *ret, int nb_jobs)
1698 {
1699 5114 return fffilterctx(ctx)->execute(ctx, func, arg, ret, nb_jobs);
1700 }
1701