FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavfilter/avfilter.c
Date: 2026-09-13 04:46:26
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 1729877 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 1729877 }
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 */
100 588 static int append_pad(unsigned *count, AVFilterPad **pads,
101 AVFilterLink ***links, AVFilterPad *newpad)
102 {
103 AVFilterLink **newlinks;
104 AVFilterPad *newpads;
105 588 unsigned idx = *count;
106
107 588 newpads = av_realloc_array(*pads, idx + 1, sizeof(*newpads));
108 588 newlinks = av_realloc_array(*links, idx + 1, sizeof(*newlinks));
109
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 588 if (newpads)
110 588 *pads = newpads;
111
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 588 if (newlinks)
112 588 *links = newlinks;
113
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 588 if (!newpads || !newlinks) {
114 ✗ if (newpad->flags & AVFILTERPAD_FLAG_FREE_NAME)
115 ✗ av_freep(&newpad->name);
116 ✗ return AVERROR(ENOMEM);
117 }
118
119 588 memcpy(*pads + idx, newpad, sizeof(AVFilterPad));
120 588 (*links)[idx] = NULL;
121
122 588 (*count)++;
123
124 588 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
138 295 int ff_append_outpad(AVFilterContext *f, AVFilterPad *p)
139 {
140 295 return append_pad(&f->nb_outputs, &f->output_pads, &f->outputs, p);
141 }
142
143 153 int ff_append_outpad_free_name(AVFilterContext *f, AVFilterPad *p)
144 {
145 153 p->flags |= AVFILTERPAD_FLAG_FREE_NAME;
146 153 return ff_append_outpad(f, p);
147 }
148
149 47944 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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 47944 av_assert0(src->graph);
156
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 47944 av_assert0(dst->graph);
157
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 47944 av_assert0(src->graph == dst->graph);
158
159
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 47944 if (src->nb_outputs <= srcpad || dst->nb_inputs <= dstpad ||
160
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 47944 src->outputs[srcpad] || dst->inputs[dstpad])
161 ✗ return AVERROR(EINVAL);
162
163
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 47944 if (!(fffilterctx(src)->state_flags & AV_CLASS_STATE_INITIALIZED) ||
164
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 47944 !(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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 47944 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 47944 li = av_mallocz(sizeof(*li));
178
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 47944 if (!li)
179 ✗ return AVERROR(ENOMEM);
180 47944 link = &li->l.pub;
181
182 47944 src->outputs[srcpad] = dst->inputs[dstpad] = link;
183
184 47944 link->src = src;
185 47944 link->dst = dst;
186 47944 link->srcpad = &src->output_pads[srcpad];
187 47944 link->dstpad = &dst->input_pads[dstpad];
188 47944 link->type = src->output_pads[srcpad].type;
189 47944 li->l.graph = src->graph;
190 av_assert0(AV_PIX_FMT_NONE == -1 && AV_SAMPLE_FMT_NONE == -1);
191 47944 link->format = -1;
192 47944 link->colorspace = AVCOL_SPC_UNSPECIFIED;
193 47944 ff_framequeue_init(&li->fifo, &fffiltergraph(src->graph)->frame_queues);
194
195 47944 return 0;
196 }
197
198 48076 static void link_free(AVFilterLink **link)
199 {
200 FilterLinkInternal *li;
201
202
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 48076 if (!*link)
203 ✗ return;
204 48076 li = ff_link_internal(*link);
205
206 48076 ff_framequeue_free(&li->fifo);
207 48076 ff_frame_pool_uninit(&li->frame_pool);
208 48076 av_channel_layout_uninit(&(*link)->ch_layout);
209 48076 av_frame_side_data_free(&(*link)->side_data, &(*link)->nb_side_data);
210
211 48076 av_buffer_unref(&li->l.hw_frames_ctx);
212
213 48076 av_freep(link);
214 }
215
216 1741734 static void update_link_current_pts(FilterLinkInternal *li, int64_t pts)
217 {
218 1741734 AVFilterLink *const link = &li->l.pub;
219
220
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 1741734 if (pts == AV_NOPTS_VALUE)
221 5 return;
222 1741729 li->l.current_pts = pts;
223 1741729 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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 1741729 if (li->l.graph && li->age_index >= 0)
226 469610 ff_avfilter_graph_update_heap(li->l.graph, li);
227 }
228
229 4317448 void ff_filter_set_ready(AVFilterContext *filter, unsigned priority)
230 {
231 4317448 FFFilterContext *ctxi = fffilterctx(filter);
232 4317448 ctxi->ready = FFMAX(ctxi->ready, priority);
233 4317448 }
234
235 /**
236 * Clear frame_blocked_in on all outputs.
237 * This is necessary whenever something changes on input.
238 */
239 2577084 static void filter_unblock(AVFilterContext *filter)
240 {
241 unsigned i;
242
243
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 4684645 for (i = 0; i < filter->nb_outputs; i++) {
244 2107561 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
245 2107561 li->frame_blocked_in = 0;
246 }
247 2577084 }
248
249
250 20176 void ff_avfilter_link_set_in_status(AVFilterLink *link, int status, int64_t pts)
251 {
252 20176 FilterLinkInternal * const li = ff_link_internal(link);
253
254
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 20176 if (li->status_in == status)
255 5730 return;
256
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 14446 av_assert0(!li->status_in);
257 14446 li->status_in = status;
258 14446 li->status_in_pts = pts;
259 14446 li->frame_wanted_out = 0;
260 14446 li->frame_blocked_in = 0;
261 14446 filter_unblock(link->dst);
262 14446 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 8788 static void link_set_out_status(AVFilterLink *link, int status, int64_t pts)
270 {
271 8788 FilterLinkInternal * const li = ff_link_internal(link);
272
273
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 8788 av_assert0(!li->frame_wanted_out);
274
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 8788 av_assert0(!li->status_out);
275 8788 li->status_out = status;
276
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 8788 if (pts != AV_NOPTS_VALUE)
277 6245 update_link_current_pts(li, pts);
278 8788 filter_unblock(link->dst);
279 8788 ff_filter_set_ready(link->src, 200);
280 8788 }
281
282 1335 int avfilter_insert_filter(AVFilterLink *link, AVFilterContext *filt,
283 unsigned filt_srcpad_idx, unsigned filt_dstpad_idx)
284 {
285 int ret;
286 1335 unsigned dstpad_idx = link->dstpad - link->dst->input_pads;
287
288 1335 av_log(link->dst, AV_LOG_VERBOSE, "auto-inserting filter '%s' "
289 "between the filter '%s' and the filter '%s'\n",
290 1335 filt->name, link->src->name, link->dst->name);
291
292 1335 link->dst->inputs[dstpad_idx] = NULL;
293
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 1335 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 1335 link->dst = filt;
301 1335 link->dstpad = &filt->input_pads[filt_srcpad_idx];
302 1335 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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 1335 if (link->outcfg.formats)
307 1335 ff_formats_changeref(&link->outcfg.formats,
308 1335 &filt->outputs[filt_dstpad_idx]->outcfg.formats);
309
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 1335 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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 1335 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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 1335 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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 1335 if (link->outcfg.samplerates)
319 701 ff_formats_changeref(&link->outcfg.samplerates,
320 701 &filt->outputs[filt_dstpad_idx]->outcfg.samplerates);
321
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 1335 if (link->outcfg.channel_layouts)
322 701 ff_channel_layouts_changeref(&link->outcfg.channel_layouts,
323 701 &filt->outputs[filt_dstpad_idx]->outcfg.channel_layouts);
324
325 1335 return 0;
326 }
327
328 46063 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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 83731 for (i = 0; i < filter->nb_inputs; i ++) {
335 37672 AVFilterLink *link = filter->inputs[i];
336 AVFilterLink *inlink;
337 37672 FilterLinkInternal *li = ff_link_internal(link);
338 FilterLinkInternal *li_in;
339
340
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 37672 if (!link) continue;
341
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 37672 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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 37672 inlink = link->src->nb_inputs ? link->src->inputs[0] : NULL;
348
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 37672 li_in = inlink ? ff_link_internal(inlink) : NULL;
349 37672 li->l.current_pts =
350 37672 li->l.current_pts_us = AV_NOPTS_VALUE;
351
352
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 37672 switch (li->init_state) {
353 112 case AVLINK_INIT:
354 112 continue;
355 2 case AVLINK_STARTINIT:
356 2 av_log(filter, AV_LOG_INFO, "circular filter chain detected\n");
357 2 return 0;
358 37558 case AVLINK_UNINIT:
359 37558 li->init_state = AVLINK_STARTINIT;
360
361
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 37558 if ((ret = ff_filter_config_links(link->src)) < 0)
362 1 return ret;
363
364
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 37557 if (!(config_link = link->srcpad->config_props)) {
365
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 19662 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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 37557 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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 37557 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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 37556 switch (link->type) {
395 31176 case AVMEDIA_TYPE_VIDEO:
396
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 31176 if (!link->time_base.num && !link->time_base.den)
397
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 23844 link->time_base = inlink ? inlink->time_base : AV_TIME_BASE_Q;
398
399
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 31176 if (!link->sample_aspect_ratio.num && !link->sample_aspect_ratio.den)
400 16960 link->sample_aspect_ratio = inlink ?
401
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 16960 inlink->sample_aspect_ratio : (AVRational){1,1};
402
403
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 31176 if (inlink) {
404
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 24111 if (!li->l.frame_rate.num && !li->l.frame_rate.den)
405 23887 li->l.frame_rate = li_in->l.frame_rate;
406
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 24111 if (!link->w)
407 16457 link->w = inlink->w;
408
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 24111 if (!link->h)
409 16457 link->h = inlink->h;
410
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 7065 } 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 31176 break;
417
418 6380 case AVMEDIA_TYPE_AUDIO:
419
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 6380 if (inlink) {
420
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 4884 if (!link->time_base.num && !link->time_base.den)
421 3301 link->time_base = inlink->time_base;
422 }
423
424
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 6380 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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 37556 if (link->src->nb_inputs &&
429
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 28995 !(fffilter(link->src->filter)->flags_internal & FF_FILTER_FLAG_HWFRAME_AWARE)) {
430 28995 FilterLink *l0 = ff_filter_link(link->src->inputs[0]);
431
432
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 28995 av_assert0(!li->l.hw_frames_ctx &&
433 "should not be set by non-hwframe-aware filter");
434
435
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 28995 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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 37556 if ((config_link = link->dstpad->config_props))
443
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 5072 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 37556 li->init_state = AVLINK_INIT;
451 }
452 }
453
454 46059 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 824436 int ff_request_frame(AVFilterLink *link)
484 {
485 824436 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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 824436 if (li->status_out)
491 11 return li->status_out;
492
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 824425 if (li->status_in) {
493
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 6246 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 6246 link_set_out_status(link, li->status_in, li->status_in_pts);
502 6246 return li->status_out;
503 }
504 }
505 818179 li->frame_wanted_out = 1;
506 818179 ff_filter_set_ready(link->src, 100);
507 818179 return 0;
508 }
509
510 6238 static int64_t guess_status_pts(AVFilterContext *ctx, int status, AVRational link_time_base)
511 {
512 unsigned i;
513 6238 int64_t r = INT64_MAX;
514
515
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 12475 for (i = 0; i < ctx->nb_inputs; i++) {
516 6237 FilterLinkInternal * const li = ff_link_internal(ctx->inputs[i]);
517
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 6237 if (li->status_out == status)
518 6237 r = FFMIN(r, av_rescale_q(li->l.current_pts, ctx->inputs[i]->time_base, link_time_base));
519 }
520
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 6238 if (r < INT64_MAX)
521 6237 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 824742 static int request_frame_to_filter(AVFilterLink *link)
533 {
534 824742 FilterLinkInternal * const li = ff_link_internal(link);
535 824742 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 824742 li->frame_blocked_in = 1;
540
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 824742 if (link->srcpad->request_frame)
541 2041 ret = link->srcpad->request_frame(link);
542
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 822701 else if (link->src->inputs[0])
543 822701 ret = ff_request_frame(link->src->inputs[0]);
544
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 824742 if (ret < 0) {
545
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 6238 if (ret != AVERROR(EAGAIN) && ret != li->status_in)
546 6238 ff_avfilter_link_set_in_status(link, ret, guess_status_pts(link->src, ret, link->time_base));
547
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 6238 if (ret == AVERROR_EOF)
548 6238 ret = 0;
549 }
550 824742 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
636 618 static const char *default_filter_name(void *filter_ctx)
637 {
638 618 AVFilterContext *ctx = filter_ctx;
639
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 618 return ctx->name ? ctx->name : ctx->filter->name;
640 }
641
642 57928 static void *filter_child_next(void *obj, void *prev)
643 {
644 57928 AVFilterContext *ctx = obj;
645
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 57928 if (!prev && ctx->filter && ctx->filter->priv_class && ctx->priv)
646 57922 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 64697 AVFilterContext *ff_filter_alloc(const AVFilter *filter, const char *inst_name)
702 {
703 FFFilterContext *ctx;
704 AVFilterContext *ret;
705 64697 const FFFilter *const fi = fffilter(filter);
706 64697 int preinited = 0;
707
708
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 64697 if (!filter)
709 ✗ return NULL;
710
711 64697 ctx = av_mallocz(sizeof(*ctx));
712
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 64697 if (!ctx)
713 ✗ return NULL;
714 64697 ret = &ctx->p;
715
716 64697 ret->av_class = &avfilter_class;
717 64697 ret->filter = filter;
718
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 64697 ret->name = inst_name ? av_strdup(inst_name) : NULL;
719
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 64697 if (fi->priv_size) {
720 57664 ret->priv = av_mallocz(fi->priv_size);
721
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 57664 if (!ret->priv)
722 ✗ goto err;
723 }
724
2/2
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 64697 if (fi->preinit) {
725
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 13794 if (fi->preinit(ret) < 0)
726 ✗ goto err;
727 13794 preinited = 1;
728 }
729
730 64697 av_opt_set_defaults(ret);
731
2/2
✓ Branch 0 taken 56405 times.
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 64697 if (filter->priv_class) {
732 56405 *(const AVClass**)ret->priv = filter->priv_class;
733 56405 av_opt_set_defaults(ret->priv);
734 }
735
736 64697 ctx->execute = default_execute;
737
738 64697 ret->nb_inputs = fi->nb_inputs;
739
2/2
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 64697 if (ret->nb_inputs ) {
740 54779 ret->input_pads = av_memdup(filter->inputs, ret->nb_inputs * sizeof(*filter->inputs));
741
1/2
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 54779 if (!ret->input_pads)
742 ✗ goto err;
743 54779 ret->inputs = av_calloc(ret->nb_inputs, sizeof(*ret->inputs));
744
1/2
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 54779 if (!ret->inputs)
745 ✗ goto err;
746 }
747
748 64697 ret->nb_outputs = fi->nb_outputs;
749
2/2
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 64697 if (ret->nb_outputs) {
750 56095 ret->output_pads = av_memdup(filter->outputs, ret->nb_outputs * sizeof(*filter->outputs));
751
1/2
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 56095 if (!ret->output_pads)
752 ✗ goto err;
753 56095 ret->outputs = av_calloc(ret->nb_outputs, sizeof(*ret->outputs));
754
1/2
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✓ Branch 1 taken 56095 times.
 56095 if (!ret->outputs)
755 ✗ goto err;
756 }
757
758 64697 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 111564 static void free_link(AVFilterLink *link)
776 {
777
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 111564 if (!link)
778 63488 return;
779
780
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 48076 if (link->src)
781 47944 link->src->outputs[link->srcpad - link->src->output_pads] = NULL;
782
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 48076 if (link->dst)
783 47944 link->dst->inputs[link->dstpad - link->dst->input_pads] = NULL;
784
785 48076 ff_formats_unref(&link->incfg.formats);
786 48076 ff_formats_unref(&link->outcfg.formats);
787 48076 ff_formats_unref(&link->incfg.color_spaces);
788 48076 ff_formats_unref(&link->outcfg.color_spaces);
789 48076 ff_formats_unref(&link->incfg.color_ranges);
790 48076 ff_formats_unref(&link->outcfg.color_ranges);
791 48076 ff_formats_unref(&link->incfg.alpha_modes);
792 48076 ff_formats_unref(&link->outcfg.alpha_modes);
793 48076 ff_formats_unref(&link->incfg.samplerates);
794 48076 ff_formats_unref(&link->outcfg.samplerates);
795 48076 ff_channel_layouts_unref(&link->incfg.channel_layouts);
796 48076 ff_channel_layouts_unref(&link->outcfg.channel_layouts);
797 48076 link_free(&link);
798 }
799
800 64697 void avfilter_free(AVFilterContext *filter)
801 {
802 FFFilterContext *ctxi;
803 int i;
804
805
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 64697 if (!filter)
806 ✗ return;
807 64697 ctxi = fffilterctx(filter);
808
809
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 64697 if (filter->graph)
810 64697 ff_filter_graph_remove_filter(filter->graph, filter);
811
812
2/2
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 64697 if (fffilter(filter->filter)->uninit)
813 50197 fffilter(filter->filter)->uninit(filter);
814
815
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 119867 for (i = 0; i < filter->nb_inputs; i++) {
816 55170 free_link(filter->inputs[i]);
817
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 55170 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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 121091 for (i = 0; i < filter->nb_outputs; i++) {
821 56394 free_link(filter->outputs[i]);
822
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 56394 if (filter->output_pads[i].flags & AVFILTERPAD_FLAG_FREE_NAME)
823 289 av_freep(&filter->output_pads[i].name);
824 }
825
826
2/2
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 64697 if (filter->filter->priv_class)
827 56405 av_opt_free(filter->priv);
828
829 64697 av_buffer_unref(&filter->hw_device_ctx);
830
831 64697 av_freep(&filter->name);
832 64697 av_freep(&filter->input_pads);
833 64697 av_freep(&filter->output_pads);
834 64697 av_freep(&filter->inputs);
835 64697 av_freep(&filter->outputs);
836 64697 av_freep(&filter->priv);
837
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 64697 while (ctxi->command_queue)
838 ✗ command_queue_pop(filter);
839 64697 av_opt_free(filter);
840 64697 av_expr_free(ctxi->enable);
841 64697 ctxi->enable = NULL;
842 64697 av_freep(&ctxi->var_values);
843 64697 av_free(filter);
844 }
845
846 19559 int ff_filter_get_nb_threads(AVFilterContext *ctx)
847 {
848
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 19559 if (ctx->nb_threads > 0)
849 ✗ return FFMIN(ctx->nb_threads, ctx->graph->nb_threads);
850 19559 return ctx->graph->nb_threads;
851 }
852
853 34544 int ff_filter_opt_parse(void *logctx, const AVClass *priv_class,
854 AVDictionary **options, const char *args)
855 {
856 34544 const AVOption *o = NULL;
857 int ret;
858 34544 int offset= -1;
859
860
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 34544 if (!args)
861 ✗ return 0;
862
863
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 94266 while (*args) {
864 char *parsed_key, *value;
865 const char *key;
866 59722 const char *shorthand = NULL;
867 59722 int additional_flags = 0;
868
869
4/4
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 59722 if (priv_class && (o = av_opt_next(&priv_class, o))) {
870
4/4
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 44917 if (o->type == AV_OPT_TYPE_CONST || o->offset == offset)
871 6380 continue;
872 38537 offset = o->offset;
873 38537 shorthand = o->name;
874 }
875
876 53342 ret = av_opt_get_key_value(&args, "=", ":",
877 shorthand ? AV_OPT_FLAG_IMPLICIT_KEY : 0,
878 &parsed_key, &value);
879
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 53342 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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 53342 if (*args)
888 27868 args++;
889
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 53342 if (parsed_key) {
890 32223 key = parsed_key;
891 32223 additional_flags = AV_DICT_DONT_STRDUP_KEY;
892 32223 priv_class = NULL; /* reject all remaining shorthand */
893 } else {
894 21119 key = shorthand;
895 }
896
897 53342 av_log(logctx, AV_LOG_DEBUG, "Setting '%s' to value '%s'\n", key, value);
898
899 53342 av_dict_set(options, key, value,
900 additional_flags | AV_DICT_DONT_STRDUP_VAL | AV_DICT_MULTIKEY);
901 }
902
903 34544 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 64697 int avfilter_init_dict(AVFilterContext *ctx, AVDictionary **options)
920 {
921 64697 FFFilterContext *ctxi = fffilterctx(ctx);
922 64697 int ret = 0;
923
924
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✗ Branch 0 not taken.
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 64697 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 64697 ret = av_opt_set_dict2(ctx, options, AV_OPT_SEARCH_CHILDREN);
930
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 64697 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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 64697 if (ctx->filter->flags & AVFILTER_FLAG_SLICE_THREADS &&
936
2/2
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✓ Branch 1 taken 1102 times.
 1258 ctx->thread_type & ctx->graph->thread_type & AVFILTER_THREAD_SLICE &&
937
1/2
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✗ Branch 2 not taken.
 156 fffiltergraph(ctx->graph)->thread_execute) {
938 156 ctx->thread_type = AVFILTER_THREAD_SLICE;
939 156 ctxi->execute = fffiltergraph(ctx->graph)->thread_execute;
940 } else {
941 64541 ctx->thread_type = 0;
942 }
943
944
2/2
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✓ Branch 2 taken 13661 times.
 64697 if (fffilter(ctx->filter)->init)
945 51036 ret = fffilter(ctx->filter)->init(ctx);
946
2/2
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✓ Branch 1 taken 64696 times.
 64697 if (ret < 0)
947 1 return ret;
948
949
2/2
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 64696 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 64696 ctxi->state_flags |= AV_CLASS_STATE_INITIALIZED;
956
957 64696 return 0;
958 }
959
960 21320 int avfilter_init_str(AVFilterContext *filter, const char *args)
961 {
962 21320 AVDictionary *options = NULL;
963 const AVDictionaryEntry *e;
964 21320 int ret = 0;
965
966
3/4
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 21320 if (args && *args) {
967 10642 ret = ff_filter_opt_parse(filter, filter->filter->priv_class, &options, args);
968
1/2
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✓ Branch 1 taken 10642 times.
 10642 if (ret < 0)
969 ✗ goto fail;
970 }
971
972 21320 ret = avfilter_init_dict(filter, &options);
973
1/2
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✓ Branch 1 taken 21320 times.
 21320 if (ret < 0)
974 ✗ goto fail;
975
976
1/2
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✗ Branch 2 not taken.
 21320 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 21320 fail:
983 21320 av_dict_free(&options);
984
985 21320 return ret;
986 }
987
988 15505 const char *avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx)
989 {
990 15505 return pads[pad_idx].name;
991 }
992
993 31375 enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx)
994 {
995 31375 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 803508 static int default_filter_frame(AVFilterLink *link, AVFrame *frame)
1008 {
1009 803508 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 2548542 static int evaluate_timeline_at_frame(AVFilterLink *link, const AVFrame *frame)
1019 {
1020 2548542 FilterLink *l = ff_filter_link(link);
1021 2548542 AVFilterContext *dstctx = link->dst;
1022 2548542 FFFilterContext *dsti = fffilterctx(dstctx);
1023 2548542 int64_t pts = frame->pts;
1024
1025
2/2
✓ Branch 0 taken 2548344 times.
✓ Branch 1 taken 198 times.
 2548542 if (!dstctx->enable_str)
1026 2548344 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 823973 static int filter_frame_framed(AVFilterLink *link, AVFrame *frame)
1037 {
1038 823973 FilterLink *l = ff_filter_link(link);
1039 int (*filter_frame)(AVFilterLink *, AVFrame *);
1040 823973 AVFilterContext *dstctx = link->dst;
1041 823973 AVFilterPad *dst = link->dstpad;
1042 int ret;
1043
1044
2/2
✓ Branch 0 taken 803499 times.
✓ Branch 1 taken 20474 times.
 823973 if (!(filter_frame = dst->filter_frame))
1045 803499 filter_frame = default_filter_frame;
1046
1047
2/2
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✓ Branch 1 taken 820980 times.
 823973 if (dst->flags & AVFILTERPAD_FLAG_NEEDS_WRITABLE) {
1048 2993 ret = ff_inlink_make_frame_writable(link, &frame);
1049
1/2
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✓ Branch 1 taken 2993 times.
 2993 if (ret < 0)
1050 ✗ goto fail;
1051 }
1052
1053 823973 ff_inlink_process_commands(link, frame);
1054 823973 dstctx->is_disabled = !evaluate_timeline_at_frame(link, frame);
1055
1056
2/2
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 823973 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 823973 ret = filter_frame(link, frame);
1060 823973 l->frame_count_out++;
1061 823973 return ret;
1062
1063 ✗ fail:
1064 ✗ av_frame_free(&frame);
1065 ✗ return ret;
1066 }
1067
1068 1729877 int ff_filter_frame(AVFilterLink *link, AVFrame *frame)
1069 {
1070 1729877 FilterLinkInternal * const li = ff_link_internal(link);
1071 int ret;
1072 1729877 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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 1729877 if (link->type == AVMEDIA_TYPE_VIDEO) {
1076
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✓ Branch 1 taken 150269 times.
 586514 if (strcmp(link->dst->filter->name, "buffersink") &&
1077
2/2
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✓ Branch 1 taken 176280 times.
 436245 strcmp(link->dst->filter->name, "format") &&
1078
2/2
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✓ Branch 1 taken 27 times.
 259965 strcmp(link->dst->filter->name, "idet") &&
1079
2/2
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✓ Branch 1 taken 91596 times.
 259938 strcmp(link->dst->filter->name, "null") &&
1080
2/2
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✓ Branch 1 taken 110591 times.
 168342 strcmp(link->dst->filter->name, "scale") &&
1081
1/2
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✗ Branch 1 not taken.
 57751 strcmp(link->dst->filter->name, "libplacebo") &&
1082
2/2
✓ Branch 0 taken 57628 times.
✓ Branch 1 taken 123 times.
 57751 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 57628 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 1143363 times.
 1143363 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 1143363 times.
 1143363 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
1/2
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 1143363 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 1143363 frame->duration = av_rescale_q(frame->nb_samples, (AVRational){ 1, frame->sample_rate },
1104 link->time_base);
1105 }
1106
1107 1729877 li->frame_blocked_in = li->frame_wanted_out = 0;
1108 1729877 li->l.frame_count_in++;
1109 1729877 li->l.sample_count_in += frame->nb_samples;
1110 1729877 filter_unblock(link->dst);
1111 1729877 ret = ff_framequeue_add(&li->fifo, frame);
1112
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✓ Branch 1 taken 1729877 times.
 1729877 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 1729877 ff_filter_set_ready(link->dst, 300);
1120 1729877 return 0;
1121
1122 ✗ error:
1123 ✗ av_frame_free(&frame);
1124 ✗ return AVERROR_PATCHWELCOME;
1125 }
1126
1127 2467305 static int samples_ready(FilterLinkInternal *link, unsigned min)
1128 {
1129
2/2
✓ Branch 1 taken 824107 times.
✓ Branch 2 taken 1643198 times.
 3291412 return ff_framequeue_queued_frames(&link->fifo) &&
1130
2/2
✓ Branch 1 taken 135 times.
✓ Branch 2 taken 823972 times.
 824107 (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 2941 static int take_samples(FilterLinkInternal *li, unsigned min, unsigned max,
1135 AVFrame **rframe)
1136 {
1137 2941 FilterLink *l = &li->l;
1138 2941 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 2941 frame0 = frame = ff_framequeue_peek(&li->fifo, 0);
1147
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✓ Branch 3 taken 116 times.
✓ Branch 4 taken 1031 times.
✓ Branch 5 taken 276 times.
 2941 if (!li->fifo.samples_skipped && frame->nb_samples >= min && frame->nb_samples <= max) {
1148 1031 *rframe = ff_framequeue_take(&li->fifo);
1149 1031 return 0;
1150 }
1151 1910 nb_frames = 0;
1152 1910 nb_samples = 0;
1153 while (1) {
1154
2/2
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✓ Branch 1 taken 1482 times.
 3142 if (nb_samples + frame->nb_samples > max) {
1155
2/2
✓ Branch 0 taken 1521 times.
✓ Branch 1 taken 139 times.
 1660 if (nb_samples < min)
1156 1521 nb_samples = max;
1157 1660 break;
1158 }
1159 1482 nb_samples += frame->nb_samples;
1160 1482 nb_frames++;
1161
2/2
✓ Branch 1 taken 250 times.
✓ Branch 2 taken 1232 times.
 1482 if (nb_frames == ff_framequeue_queued_frames(&li->fifo))
1162 250 break;
1163 1232 frame = ff_framequeue_peek(&li->fifo, nb_frames);
1164 }
1165
1166 1910 buf = ff_get_audio_buffer(link, nb_samples);
1167
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✓ Branch 1 taken 1910 times.
 1910 if (!buf)
1168 ✗ return AVERROR(ENOMEM);
1169 1910 ret = av_frame_copy_props(buf, frame0);
1170
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1910 times.
 1910 if (ret < 0) {
1171 ✗ av_frame_free(&buf);
1172 ✗ return ret;
1173 }
1174
1175 1910 p = 0;
1176
2/2
✓ Branch 0 taken 1482 times.
✓ Branch 1 taken 1910 times.
 3392 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.
 1910 if (p < nb_samples) {
1184 1521 unsigned n = nb_samples - p;
1185 1521 frame = ff_framequeue_peek(&li->fifo, 0);
1186 1521 av_samples_copy(buf->extended_data, frame->extended_data, p, 0, n,
1187 1521 link->ch_layout.nb_channels, link->format);
1188 1521 ff_framequeue_skip_samples(&li->fifo, n, link->time_base);
1189 }
1190
1191 1910 *rframe = buf;
1192 1910 return 0;
1193 }
1194
1195 823973 static int filter_frame_to_filter(AVFilterLink *link)
1196 {
1197 823973 FilterLinkInternal * const li = ff_link_internal(link);
1198 823973 AVFrame *frame = NULL;
1199 823973 AVFilterContext *dst = link->dst;
1200 int ret;
1201
1202 av_assert1(ff_framequeue_queued_frames(&li->fifo));
1203 1647946 ret = li->l.min_samples ?
1204
2/2
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✓ Branch 1 taken 823937 times.
 823973 ff_inlink_consume_samples(link, li->l.min_samples, li->l.max_samples, &frame) :
1205 823937 ff_inlink_consume_frame(link, &frame);
1206 av_assert1(ret);
1207
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✓ Branch 1 taken 823973 times.
 823973 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 823973 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 823973 li->l.frame_count_out--;
1217 823973 ret = filter_frame_framed(link, frame);
1218
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✗ Branch 2 not taken.
✗ Branch 3 not taken.
 823973 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 823973 ff_filter_set_ready(dst, 300);
1224 }
1225 823973 return ret;
1226 }
1227
1228 6246 static int forward_status_change(AVFilterContext *filter, FilterLinkInternal *li_in)
1229 {
1230 6246 AVFilterLink *in = &li_in->l.pub;
1231 6246 unsigned out = 0, progress = 0;
1232 int ret;
1233
1234
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✓ Branch 1 taken 6246 times.
 6246 av_assert0(!li_in->status_out);
1235
2/2
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✓ Branch 1 taken 6245 times.
 6246 if (!filter->nb_outputs) {
1236 /* not necessary with the current API and sinks */
1237 1 return 0;
1238 }
1239
2/2
✓ Branch 0 taken 6245 times.
✓ Branch 1 taken 6245 times.
 12490 while (!li_in->status_out) {
1240 6245 FilterLinkInternal *li_out = ff_link_internal(filter->outputs[out]);
1241
1242
1/2
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✗ Branch 1 not taken.
 6245 if (!li_out->status_in) {
1243 6245 progress++;
1244 6245 ret = request_frame_to_filter(filter->outputs[out]);
1245
1/2
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 6245 if (ret < 0)
1246 ✗ return ret;
1247 }
1248
1/2
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✗ Branch 1 not taken.
 6245 if (++out == filter->nb_outputs) {
1249
1/2
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✓ Branch 1 taken 6245 times.
 6245 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 6245 progress = 0;
1256 6245 out = 0;
1257 }
1258 }
1259 6245 ff_filter_set_ready(filter, 200);
1260 6245 return 0;
1261 }
1262
1263 2474714 static int filter_activate_default(AVFilterContext *filter)
1264 {
1265 unsigned i;
1266 2474714 int nb_eofs = 0;
1267
1268
2/2
✓ Branch 0 taken 2474667 times.
✓ Branch 1 taken 2474714 times.
 4949381 for (i = 0; i < filter->nb_outputs; i++)
1269 2474667 nb_eofs += ff_outlink_get_status(filter->outputs[i]) == AVERROR_EOF;
1270
4/4
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✓ Branch 1 taken 47 times.
✓ Branch 2 taken 7144 times.
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 2474714 if (filter->nb_outputs && nb_eofs == filter->nb_outputs) {
1271
2/2
✓ Branch 0 taken 7144 times.
✓ Branch 1 taken 7144 times.
 14288 for (int j = 0; j < filter->nb_inputs; j++)
1272 7144 ff_inlink_set_status(filter->inputs[j], AVERROR_EOF);
1273 7144 return 0;
1274 }
1275
1276
2/2
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✓ Branch 1 taken 1643597 times.
 4110902 for (i = 0; i < filter->nb_inputs; i++) {
1277 2467305 FilterLinkInternal *li = ff_link_internal(filter->inputs[i]);
1278
2/2
✓ Branch 1 taken 823973 times.
✓ Branch 2 taken 1643332 times.
 2467305 if (samples_ready(li, li->l.min_samples)) {
1279 823973 return filter_frame_to_filter(filter->inputs[i]);
1280 }
1281 }
1282
2/2
✓ Branch 0 taken 1643332 times.
✓ Branch 1 taken 1637351 times.
 3280683 for (i = 0; i < filter->nb_inputs; i++) {
1283 1643332 FilterLinkInternal * const li = ff_link_internal(filter->inputs[i]);
1284
4/4
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✓ Branch 1 taken 1637051 times.
✓ Branch 2 taken 6246 times.
✓ Branch 3 taken 35 times.
 1643332 if (li->status_in && !li->status_out) {
1285 av_assert1(!ff_framequeue_queued_frames(&li->fifo));
1286 6246 return forward_status_change(filter, li);
1287 }
1288 }
1289
2/2
✓ Branch 0 taken 1637328 times.
✓ Branch 1 taken 823890 times.
 2461218 for (i = 0; i < filter->nb_outputs; i++) {
1290 1637328 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
1291
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✓ Branch 1 taken 818831 times.
 1637328 if (li->frame_wanted_out &&
1292
2/2
✓ Branch 0 taken 813461 times.
✓ Branch 1 taken 5036 times.
 818497 !li->frame_blocked_in) {
1293 813461 return request_frame_to_filter(filter->outputs[i]);
1294 }
1295 }
1296
2/2
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✓ Branch 1 taken 818854 times.
 1642721 for (i = 0; i < filter->nb_outputs; i++) {
1297 823867 FilterLinkInternal * const li = ff_link_internal(filter->outputs[i]);
1298
2/2
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✓ Branch 1 taken 818831 times.
 823867 if (li->frame_wanted_out)
1299 5036 return request_frame_to_filter(filter->outputs[i]);
1300 }
1301
2/2
✓ Branch 0 taken 23 times.
✓ Branch 1 taken 818831 times.
 818854 if (!filter->nb_outputs) {
1302 23 ff_inlink_request_frame(filter->inputs[0]);
1303 23 return 0;
1304 }
1305 818831 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 4303149 int ff_filter_activate(AVFilterContext *filter)
1452 {
1453 4303149 FFFilterContext *ctxi = fffilterctx(filter);
1454 4303149 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 4303149 ctxi->ready = 0;
1461
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 4303149 ret = fi->activate ? fi->activate(filter) : filter_activate_default(filter);
1462
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 4303149 if (ret == FFERROR_NOT_READY)
1463 819711 ret = 0;
1464 4303149 return ret;
1465 }
1466
1467 3873643 int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts)
1468 {
1469 3873643 FilterLinkInternal * const li = ff_link_internal(link);
1470 3873643 *rpts = li->l.current_pts;
1471
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 3873643 if (ff_framequeue_queued_frames(&li->fifo))
1472 2206 return *rstatus = 0;
1473
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 3871437 if (li->status_out)
1474 8095 return *rstatus = li->status_out;
1475
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 3863342 if (!li->status_in)
1476 3855157 return *rstatus = 0;
1477 8185 *rstatus = li->status_out = li->status_in;
1478 8185 update_link_current_pts(li, li->status_in_pts);
1479 8185 *rpts = li->l.current_pts;
1480 8185 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 5590714 int ff_inlink_check_available_frame(AVFilterLink *link)
1490 {
1491 5590714 FilterLinkInternal * const li = ff_link_internal(link);
1492 5590714 return ff_framequeue_queued_frames(&li->fifo) > 0;
1493 }
1494
1495 8419 int ff_inlink_queued_samples(AVFilterLink *link)
1496 {
1497 8419 FilterLinkInternal * const li = ff_link_internal(link);
1498 8419 return ff_framequeue_queued_samples(&li->fifo);
1499 }
1500
1501 4836 int ff_inlink_check_available_samples(AVFilterLink *link, unsigned min)
1502 {
1503 4836 FilterLinkInternal * const li = ff_link_internal(link);
1504 4836 uint64_t samples = ff_framequeue_queued_samples(&li->fifo);
1505 av_assert1(min);
1506
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 4836 return samples >= min || (li->status_in && samples);
1507 }
1508
1509 1727304 static void consume_update(FilterLinkInternal *li, const AVFrame *frame)
1510 {
1511 1727304 AVFilterLink *const link = &li->l.pub;
1512 1727304 update_link_current_pts(li, frame->pts);
1513 1727304 ff_inlink_process_commands(link, frame);
1514
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 1727304 if (link == link->dst->inputs[0])
1515 1724569 link->dst->is_disabled = !evaluate_timeline_at_frame(link, frame);
1516 1727304 li->l.frame_count_out++;
1517 1727304 li->l.sample_count_out += frame->nb_samples;
1518 1727304 }
1519
1520 5588453 int ff_inlink_consume_frame(AVFilterLink *link, AVFrame **rframe)
1521 {
1522 5588453 FilterLinkInternal * const li = ff_link_internal(link);
1523 AVFrame *frame;
1524
1525 5588453 *rframe = NULL;
1526
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 5588453 if (!ff_inlink_check_available_frame(link))
1527 3864086 return 0;
1528
1529
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 1724367 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 1724363 frame = ff_framequeue_take(&li->fifo);
1535 1724363 consume_update(li, frame);
1536 1724363 *rframe = frame;
1537 1724363 return 1;
1538 }
1539
1540 4832 int ff_inlink_consume_samples(AVFilterLink *link, unsigned min, unsigned max,
1541 AVFrame **rframe)
1542 {
1543 4832 FilterLinkInternal * const li = ff_link_internal(link);
1544 AVFrame *frame;
1545 int ret;
1546
1547 av_assert1(min);
1548 4832 *rframe = NULL;
1549
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 4832 if (!ff_inlink_check_available_samples(link, min))
1550 1891 return 0;
1551
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 2941 if (li->status_in)
1552
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 131 min = FFMIN(min, ff_framequeue_queued_samples(&li->fifo));
1553 2941 ret = take_samples(li, min, max, &frame);
1554
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 2941 if (ret < 0)
1555 ✗ return ret;
1556 2941 consume_update(li, frame);
1557 2941 *rframe = frame;
1558 2941 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 5188 int ff_inlink_make_frame_writable(AVFilterLink *link, AVFrame **rframe)
1568 {
1569 5188 AVFrame *frame = *rframe;
1570 AVFrame *out;
1571 int ret;
1572
1573
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 5188 if (av_frame_is_writable(frame))
1574 2311 return 0;
1575 2877 av_log(link->dst, AV_LOG_DEBUG, "Copying data in avfilter.\n");
1576
1577
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 2877 switch (link->type) {
1578 2877 case AVMEDIA_TYPE_VIDEO:
1579 2877 out = ff_get_video_buffer(link, link->w, link->h);
1580 2877 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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 2877 if (!out)
1588 ✗ return AVERROR(ENOMEM);
1589
1590 2877 ret = av_frame_copy_props(out, frame);
1591
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 2877 if (ret < 0) {
1592 ✗ av_frame_free(&out);
1593 ✗ return ret;
1594 }
1595
1596 2877 ret = av_frame_copy(out, frame);
1597
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 2877 if (ret < 0) {
1598 ✗ av_frame_free(&out);
1599 ✗ return ret;
1600 }
1601
1602 2877 av_frame_free(&frame);
1603 2877 *rframe = out;
1604 2877 return 0;
1605 }
1606
1607 2551277 int ff_inlink_process_commands(AVFilterLink *link, const AVFrame *frame)
1608 {
1609 2551277 FFFilterContext *ctxi = fffilterctx(link->dst);
1610 2551277 AVFilterCommand *cmd = ctxi->command_queue;
1611
1612
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 2551277 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 2551277 return 0;
1621 }
1622
1623 909790 void ff_inlink_request_frame(AVFilterLink *link)
1624 {
1625 909790 av_unused FilterLinkInternal *li = ff_link_internal(link);
1626 av_assert1(!li->status_in);
1627 av_assert1(!li->status_out);
1628 909790 li->frame_wanted_out = 1;
1629 909790 ff_filter_set_ready(link->src, 100);
1630 909790 }
1631
1632 11344 void ff_inlink_set_status(AVFilterLink *link, int status)
1633 {
1634 11344 FilterLinkInternal * const li = ff_link_internal(link);
1635
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 11344 if (li->status_out)
1636 8802 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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 2552 while (ff_framequeue_queued_frames(&li->fifo)) {
1641 10 AVFrame *frame = ff_framequeue_take(&li->fifo);
1642 10 av_frame_free(&frame);
1643 }
1644
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 2542 if (!li->status_in)
1645 2538 li->status_in = status;
1646 }
1647
1648 4226253 int ff_outlink_get_status(AVFilterLink *link)
1649 {
1650 4226253 FilterLinkInternal * const li = ff_link_internal(link);
1651 4226253 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 494803 int ff_outlink_frame_wanted(AVFilterLink *link)
1691 {
1692 494803 FilterLinkInternal * const li = ff_link_internal(link);
1693 494803 return li->frame_wanted_out;
1694 }
1695
1696 5105 int ff_filter_execute(AVFilterContext *ctx, avfilter_action_func *func,
1697 void *arg, int *ret, int nb_jobs)
1698 {
1699 5105 return fffilterctx(ctx)->execute(ctx, func, arg, ret, nb_jobs);
1700 }
1701