FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/fftools/ffmpeg_mux.c
Date: 2024-10-04 17:46:48
Exec Total Coverage
Lines: 363 493 73.6%
Functions: 22 24 91.7%
Branches: 195 280 69.6%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <stdatomic.h>
20 #include <stdio.h>
21 #include <string.h>
22
23 #include "ffmpeg.h"
24 #include "ffmpeg_mux.h"
25 #include "ffmpeg_utils.h"
26 #include "sync_queue.h"
27
28 #include "libavutil/avstring.h"
29 #include "libavutil/fifo.h"
30 #include "libavutil/intreadwrite.h"
31 #include "libavutil/log.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/time.h"
34 #include "libavutil/timestamp.h"
35
36 #include "libavcodec/packet.h"
37
38 #include "libavformat/avformat.h"
39 #include "libavformat/avio.h"
40
41 typedef struct MuxThreadContext {
42 AVPacket *pkt;
43 AVPacket *fix_sub_duration_pkt;
44 } MuxThreadContext;
45
46 48570 static Muxer *mux_from_of(OutputFile *of)
47 {
48 48570 return (Muxer*)of;
49 }
50
51 481991 static int64_t filesize(AVIOContext *pb)
52 {
53 481991 int64_t ret = -1;
54
55
2/2
✓ Branch 0 taken 472724 times.
✓ Branch 1 taken 9267 times.
481991 if (pb) {
56 472724 ret = avio_size(pb);
57
2/2
✓ Branch 0 taken 101947 times.
✓ Branch 1 taken 370777 times.
472724 if (ret <= 0) // FIXME improve avio_size() so it works with non seekable output too
58 101947 ret = avio_tell(pb);
59 }
60
61 481991 return ret;
62 }
63
64 static void mux_log_debug_ts(OutputStream *ost, const AVPacket *pkt)
65 {
66 static const char *desc[] = {
67 [LATENCY_PROBE_DEMUX] = "demux",
68 [LATENCY_PROBE_DEC_PRE] = "decode",
69 [LATENCY_PROBE_DEC_POST] = "decode",
70 [LATENCY_PROBE_FILTER_PRE] = "filter",
71 [LATENCY_PROBE_FILTER_POST] = "filter",
72 [LATENCY_PROBE_ENC_PRE] = "encode",
73 [LATENCY_PROBE_ENC_POST] = "encode",
74 [LATENCY_PROBE_NB] = "mux",
75 };
76
77 char latency[512];
78
79 *latency = 0;
80 if (pkt->opaque_ref) {
81 const FrameData *fd = (FrameData*)pkt->opaque_ref->data;
82 int64_t now = av_gettime_relative();
83 int64_t total = INT64_MIN;
84
85 int next;
86
87 for (unsigned i = 0; i < FF_ARRAY_ELEMS(fd->wallclock); i = next) {
88 int64_t val = fd->wallclock[i];
89
90 next = i + 1;
91
92 if (val == INT64_MIN)
93 continue;
94
95 if (total == INT64_MIN) {
96 total = now - val;
97 snprintf(latency, sizeof(latency), "total:%gms", total / 1e3);
98 }
99
100 // find the next valid entry
101 for (; next <= FF_ARRAY_ELEMS(fd->wallclock); next++) {
102 int64_t val_next = (next == FF_ARRAY_ELEMS(fd->wallclock)) ?
103 now : fd->wallclock[next];
104 int64_t diff;
105
106 if (val_next == INT64_MIN)
107 continue;
108 diff = val_next - val;
109
110 // print those stages that take at least 5% of total
111 if (100. * diff > 5. * total) {
112 av_strlcat(latency, ", ", sizeof(latency));
113
114 if (!strcmp(desc[i], desc[next]))
115 av_strlcat(latency, desc[i], sizeof(latency));
116 else
117 av_strlcatf(latency, sizeof(latency), "%s-%s:",
118 desc[i], desc[next]);
119
120 av_strlcatf(latency, sizeof(latency), " %gms/%d%%",
121 diff / 1e3, (int)(100. * diff / total));
122 }
123
124 break;
125 }
126
127 }
128 }
129
130 av_log(ost, AV_LOG_INFO, "muxer <- pts:%s pts_time:%s dts:%s dts_time:%s "
131 "duration:%s duration_time:%s size:%d latency(%s)\n",
132 av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
133 av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
134 av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, &ost->st->time_base),
135 pkt->size, *latency ? latency : "N/A");
136 }
137
138 475173 static int mux_fixup_ts(Muxer *mux, MuxStream *ms, AVPacket *pkt)
139 {
140 475173 OutputStream *ost = &ms->ost;
141
142 #if FFMPEG_OPT_VSYNC_DROP
143
3/4
✓ Branch 0 taken 127078 times.
✓ Branch 1 taken 348095 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 127078 times.
475173 if (ost->type == AVMEDIA_TYPE_VIDEO && ms->ts_drop)
144 pkt->pts = pkt->dts = AV_NOPTS_VALUE;
145 #endif
146
147 // rescale timestamps to the stream timebase
148
4/4
✓ Branch 0 taken 346260 times.
✓ Branch 1 taken 128913 times.
✓ Branch 2 taken 48588 times.
✓ Branch 3 taken 297672 times.
475173 if (ost->type == AVMEDIA_TYPE_AUDIO && !ost->enc) {
149 // use av_rescale_delta() for streamcopying audio, to preserve
150 // accuracy with coarse input timebases
151 48588 int duration = av_get_audio_frame_duration2(ost->st->codecpar, pkt->size);
152
153
2/2
✓ Branch 0 taken 16456 times.
✓ Branch 1 taken 32132 times.
48588 if (!duration)
154 16456 duration = ost->st->codecpar->frame_size;
155
156 97176 pkt->dts = av_rescale_delta(pkt->time_base, pkt->dts,
157 48588 (AVRational){1, ost->st->codecpar->sample_rate}, duration,
158 48588 &ms->ts_rescale_delta_last, ost->st->time_base);
159 48588 pkt->pts = pkt->dts;
160
161 48588 pkt->duration = av_rescale_q(pkt->duration, pkt->time_base, ost->st->time_base);
162 } else
163 426585 av_packet_rescale_ts(pkt, pkt->time_base, ost->st->time_base);
164 475173 pkt->time_base = ost->st->time_base;
165
166
2/2
✓ Branch 0 taken 213739 times.
✓ Branch 1 taken 261434 times.
475173 if (!(mux->fc->oformat->flags & AVFMT_NOTIMESTAMPS)) {
167
1/2
✓ Branch 0 taken 213739 times.
✗ Branch 1 not taken.
213739 if (pkt->dts != AV_NOPTS_VALUE &&
168
2/2
✓ Branch 0 taken 212645 times.
✓ Branch 1 taken 1094 times.
213739 pkt->pts != AV_NOPTS_VALUE &&
169
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 212645 times.
212645 pkt->dts > pkt->pts) {
170 av_log(ost, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64", replacing by guess\n",
171 pkt->dts, pkt->pts);
172 pkt->pts =
173 pkt->dts = pkt->pts + pkt->dts + ms->last_mux_dts + 1
174 - FFMIN3(pkt->pts, pkt->dts, ms->last_mux_dts + 1)
175 - FFMAX3(pkt->pts, pkt->dts, ms->last_mux_dts + 1);
176 }
177
6/6
✓ Branch 0 taken 92380 times.
✓ Branch 1 taken 121359 times.
✓ Branch 2 taken 1332 times.
✓ Branch 3 taken 91048 times.
✓ Branch 4 taken 1319 times.
✓ Branch 5 taken 13 times.
213739 if ((ost->type == AVMEDIA_TYPE_AUDIO || ost->type == AVMEDIA_TYPE_VIDEO || ost->type == AVMEDIA_TYPE_SUBTITLE) &&
178
1/2
✓ Branch 0 taken 213726 times.
✗ Branch 1 not taken.
213726 pkt->dts != AV_NOPTS_VALUE &&
179
2/2
✓ Branch 0 taken 208009 times.
✓ Branch 1 taken 5717 times.
213726 ms->last_mux_dts != AV_NOPTS_VALUE) {
180 208009 int64_t max = ms->last_mux_dts + !(mux->fc->oformat->flags & AVFMT_TS_NONSTRICT);
181
2/2
✓ Branch 0 taken 28 times.
✓ Branch 1 taken 207981 times.
208009 if (pkt->dts < max) {
182
3/4
✓ Branch 0 taken 17 times.
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 17 times.
28 int loglevel = max - pkt->dts > 2 || ost->type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
183
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28 times.
28 if (exit_on_error)
184 loglevel = AV_LOG_ERROR;
185 28 av_log(ost, loglevel, "Non-monotonic DTS; "
186 "previous: %"PRId64", current: %"PRId64"; ",
187 ms->last_mux_dts, pkt->dts);
188
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28 times.
28 if (exit_on_error) {
189 return AVERROR(EINVAL);
190 }
191
192 28 av_log(ost, loglevel, "changing to %"PRId64". This may result "
193 "in incorrect timestamps in the output file.\n",
194 max);
195
1/2
✓ Branch 0 taken 28 times.
✗ Branch 1 not taken.
28 if (pkt->pts >= pkt->dts)
196 28 pkt->pts = FFMAX(pkt->pts, max);
197 28 pkt->dts = max;
198 }
199 }
200 }
201 475173 ms->last_mux_dts = pkt->dts;
202
203
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 475173 times.
475173 if (debug_ts)
204 mux_log_debug_ts(ost, pkt);
205
206 475173 return 0;
207 }
208
209 475173 static int write_packet(Muxer *mux, OutputStream *ost, AVPacket *pkt)
210 {
211 475173 MuxStream *ms = ms_from_ost(ost);
212 475173 AVFormatContext *s = mux->fc;
213 int64_t fs;
214 uint64_t frame_num;
215 int ret;
216
217 475173 fs = filesize(s->pb);
218 475173 atomic_store(&mux->last_filesize, fs);
219
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 475173 times.
475173 if (fs >= mux->limit_filesize) {
220 ret = AVERROR_EOF;
221 goto fail;
222 }
223
224 475173 ret = mux_fixup_ts(mux, ms, pkt);
225
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 475173 times.
475173 if (ret < 0)
226 goto fail;
227
228 475173 ms->data_size_mux += pkt->size;
229 475173 frame_num = atomic_fetch_add(&ost->packets_written, 1);
230
231 475173 pkt->stream_index = ost->index;
232
233
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 475173 times.
475173 if (ms->stats.io)
234 enc_stats_write(ost, &ms->stats, NULL, pkt, frame_num);
235
236 475173 ret = av_interleaved_write_frame(s, pkt);
237
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 475173 times.
475173 if (ret < 0) {
238 av_log(ost, AV_LOG_ERROR,
239 "Error submitting a packet to the muxer: %s\n",
240 av_err2str(ret));
241 goto fail;
242 }
243
244 475173 return 0;
245 fail:
246 av_packet_unref(pkt);
247 return ret;
248 }
249
250 482469 static int sync_queue_process(Muxer *mux, MuxStream *ms, AVPacket *pkt, int *stream_eof)
251 {
252 482469 OutputFile *of = &mux->of;
253
254
2/2
✓ Branch 0 taken 878 times.
✓ Branch 1 taken 481591 times.
482469 if (ms->sq_idx_mux >= 0) {
255 878 int ret = sq_send(mux->sq_mux, ms->sq_idx_mux, SQPKT(pkt));
256
2/2
✓ Branch 0 taken 855 times.
✓ Branch 1 taken 23 times.
878 if (ret < 0) {
257
1/2
✓ Branch 0 taken 23 times.
✗ Branch 1 not taken.
23 if (ret == AVERROR_EOF)
258 23 *stream_eof = 1;
259
260 23 return ret;
261 }
262
263 795 while (1) {
264 1650 ret = sq_receive(mux->sq_mux, -1, SQPKT(mux->sq_pkt));
265
2/2
✓ Branch 0 taken 855 times.
✓ Branch 1 taken 795 times.
1650 if (ret < 0) {
266 /* n.b.: We forward EOF from the sync queue, terminating muxing.
267 * This assumes that if a muxing sync queue is present, then all
268 * the streams use it. That is true currently, but may change in
269 * the future, then this code needs to be revisited.
270 */
271
2/2
✓ Branch 0 taken 11 times.
✓ Branch 1 taken 844 times.
855 return ret == AVERROR(EAGAIN) ? 0 : ret;
272 }
273
274 795 ret = write_packet(mux, of->streams[ret],
275 mux->sq_pkt);
276
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 795 times.
795 if (ret < 0)
277 return ret;
278 }
279
2/2
✓ Branch 0 taken 474378 times.
✓ Branch 1 taken 7213 times.
481591 } else if (pkt)
280 474378 return write_packet(mux, &ms->ost, pkt);
281
282 7213 return 0;
283 }
284
285 static int of_streamcopy(OutputFile *of, OutputStream *ost, AVPacket *pkt);
286
287 /* apply the output bitstream filters */
288 483319 static int mux_packet_filter(Muxer *mux, MuxThreadContext *mt,
289 OutputStream *ost, AVPacket *pkt, int *stream_eof)
290 {
291 483319 MuxStream *ms = ms_from_ost(ost);
292 const char *err_msg;
293 int ret;
294
295
4/4
✓ Branch 0 taken 476138 times.
✓ Branch 1 taken 7181 times.
✓ Branch 2 taken 67431 times.
✓ Branch 3 taken 408707 times.
483319 if (pkt && !ost->enc) {
296 67431 ret = of_streamcopy(&mux->of, ost, pkt);
297
2/2
✓ Branch 0 taken 247 times.
✓ Branch 1 taken 67184 times.
67431 if (ret == AVERROR(EAGAIN))
298 247 return 0;
299
2/2
✓ Branch 0 taken 45 times.
✓ Branch 1 taken 67139 times.
67184 else if (ret == AVERROR_EOF) {
300 45 av_packet_unref(pkt);
301 45 pkt = NULL;
302 45 *stream_eof = 1;
303
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 67139 times.
67139 } else if (ret < 0)
304 goto fail;
305 }
306
307 // emit heartbeat for -fix_sub_duration;
308 // we are only interested in heartbeats on on random access points.
309
4/4
✓ Branch 0 taken 475846 times.
✓ Branch 1 taken 7226 times.
✓ Branch 2 taken 438927 times.
✓ Branch 3 taken 36919 times.
483072 if (pkt && (pkt->flags & AV_PKT_FLAG_KEY)) {
310 438927 mt->fix_sub_duration_pkt->opaque = (void*)(intptr_t)PKT_OPAQUE_FIX_SUB_DURATION;
311 438927 mt->fix_sub_duration_pkt->pts = pkt->pts;
312 438927 mt->fix_sub_duration_pkt->time_base = pkt->time_base;
313
314 438927 ret = sch_mux_sub_heartbeat(mux->sch, mux->sch_idx, ms->sch_idx,
315 438927 mt->fix_sub_duration_pkt);
316
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 438927 times.
438927 if (ret < 0)
317 goto fail;
318 }
319
320
2/2
✓ Branch 0 taken 10376 times.
✓ Branch 1 taken 472696 times.
483072 if (ms->bsf_ctx) {
321 10376 int bsf_eof = 0;
322
323
2/2
✓ Branch 0 taken 10243 times.
✓ Branch 1 taken 133 times.
10376 if (pkt)
324 10243 av_packet_rescale_ts(pkt, pkt->time_base, ms->bsf_ctx->time_base_in);
325
326 10376 ret = av_bsf_send_packet(ms->bsf_ctx, pkt);
327
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 10376 times.
10376 if (ret < 0) {
328 err_msg = "submitting a packet for bitstream filtering";
329 goto fail;
330 }
331
332
2/2
✓ Branch 0 taken 20018 times.
✓ Branch 1 taken 132 times.
20150 while (!bsf_eof) {
333 20018 ret = av_bsf_receive_packet(ms->bsf_ctx, ms->bsf_pkt);
334
2/2
✓ Branch 0 taken 10243 times.
✓ Branch 1 taken 9775 times.
20018 if (ret == AVERROR(EAGAIN))
335 10243 return 0;
336
2/2
✓ Branch 0 taken 132 times.
✓ Branch 1 taken 9643 times.
9775 else if (ret == AVERROR_EOF)
337 132 bsf_eof = 1;
338
2/2
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 9641 times.
9643 else if (ret < 0) {
339 2 av_log(ost, AV_LOG_ERROR,
340 "Error applying bitstream filters to a packet: %s",
341 2 av_err2str(ret));
342
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2 times.
2 if (exit_on_error)
343 return ret;
344 2 continue;
345 }
346
347
2/2
✓ Branch 0 taken 9641 times.
✓ Branch 1 taken 132 times.
9773 if (!bsf_eof)
348 9641 ms->bsf_pkt->time_base = ms->bsf_ctx->time_base_out;
349
350
2/2
✓ Branch 0 taken 9641 times.
✓ Branch 1 taken 132 times.
9773 ret = sync_queue_process(mux, ms, bsf_eof ? NULL : ms->bsf_pkt, stream_eof);
351
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 9772 times.
9773 if (ret < 0)
352 1 goto mux_fail;
353 }
354 132 *stream_eof = 1;
355 } else {
356 472696 ret = sync_queue_process(mux, ms, pkt, stream_eof);
357
2/2
✓ Branch 0 taken 33 times.
✓ Branch 1 taken 472663 times.
472696 if (ret < 0)
358 33 goto mux_fail;
359 }
360
361
2/2
✓ Branch 0 taken 176 times.
✓ Branch 1 taken 472619 times.
472795 return *stream_eof ? AVERROR_EOF : 0;
362
363 34 mux_fail:
364 34 err_msg = "submitting a packet to the muxer";
365
366 34 fail:
367
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 34 times.
34 if (ret != AVERROR_EOF)
368 av_log(ost, AV_LOG_ERROR, "Error %s: %s\n", err_msg, av_err2str(ret));
369 34 return ret;
370 }
371
372 6818 static void thread_set_name(Muxer *mux)
373 {
374 char name[16];
375 6818 snprintf(name, sizeof(name), "mux%d:%s",
376 6818 mux->of.index, mux->fc->oformat->name);
377 6818 ff_thread_setname(name);
378 6818 }
379
380 6818 static void mux_thread_uninit(MuxThreadContext *mt)
381 {
382 6818 av_packet_free(&mt->pkt);
383 6818 av_packet_free(&mt->fix_sub_duration_pkt);
384
385 6818 memset(mt, 0, sizeof(*mt));
386 6818 }
387
388 6818 static int mux_thread_init(MuxThreadContext *mt)
389 {
390 6818 memset(mt, 0, sizeof(*mt));
391
392 6818 mt->pkt = av_packet_alloc();
393
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (!mt->pkt)
394 goto fail;
395
396 6818 mt->fix_sub_duration_pkt = av_packet_alloc();
397
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (!mt->fix_sub_duration_pkt)
398 goto fail;
399
400 6818 return 0;
401
402 fail:
403 mux_thread_uninit(mt);
404 return AVERROR(ENOMEM);
405 }
406
407 6818 int muxer_thread(void *arg)
408 {
409 6818 Muxer *mux = arg;
410 6818 OutputFile *of = &mux->of;
411
412 MuxThreadContext mt;
413
414 6818 int ret = 0;
415
416 6818 ret = mux_thread_init(&mt);
417
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (ret < 0)
418 goto finish;
419
420 6818 thread_set_name(mux);
421
422 483308 while (1) {
423 OutputStream *ost;
424 490126 int stream_idx, stream_eof = 0;
425
426 490126 ret = sch_mux_receive(mux->sch, of->index, mt.pkt);
427 490126 stream_idx = mt.pkt->stream_index;
428
2/2
✓ Branch 0 taken 6807 times.
✓ Branch 1 taken 483319 times.
490126 if (stream_idx < 0) {
429 6807 av_log(mux, AV_LOG_VERBOSE, "All streams finished\n");
430 6807 ret = 0;
431 6818 break;
432 }
433
434 483319 ost = of->streams[mux->sch_stream_idx[stream_idx]];
435 483319 mt.pkt->stream_index = ost->index;
436 483319 mt.pkt->flags &= ~AV_PKT_FLAG_TRUSTED;
437
438
2/2
✓ Branch 0 taken 476138 times.
✓ Branch 1 taken 7181 times.
483319 ret = mux_packet_filter(mux, &mt, ost, ret < 0 ? NULL : mt.pkt, &stream_eof);
439 483319 av_packet_unref(mt.pkt);
440
2/2
✓ Branch 0 taken 210 times.
✓ Branch 1 taken 483109 times.
483319 if (ret == AVERROR_EOF) {
441
2/2
✓ Branch 0 taken 199 times.
✓ Branch 1 taken 11 times.
210 if (stream_eof) {
442 199 sch_mux_receive_finish(mux->sch, of->index, stream_idx);
443 } else {
444 11 av_log(mux, AV_LOG_VERBOSE, "Muxer returned EOF\n");
445 11 ret = 0;
446 11 break;
447 }
448
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 483109 times.
483109 } else if (ret < 0) {
449 av_log(mux, AV_LOG_ERROR, "Error muxing a packet\n");
450 break;
451 }
452 }
453
454 6818 finish:
455 6818 mux_thread_uninit(&mt);
456
457 6818 return ret;
458 }
459
460 67431 static int of_streamcopy(OutputFile *of, OutputStream *ost, AVPacket *pkt)
461 {
462 67431 MuxStream *ms = ms_from_ost(ost);
463
1/2
✓ Branch 0 taken 67431 times.
✗ Branch 1 not taken.
67431 FrameData *fd = pkt->opaque_ref ? (FrameData*)pkt->opaque_ref->data : NULL;
464
1/2
✓ Branch 0 taken 67431 times.
✗ Branch 1 not taken.
67431 int64_t dts = fd ? fd->dts_est : AV_NOPTS_VALUE;
465
2/2
✓ Branch 0 taken 1073 times.
✓ Branch 1 taken 66358 times.
67431 int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
466 int64_t ts_offset;
467
468
2/2
✓ Branch 0 taken 1341 times.
✓ Branch 1 taken 66090 times.
67431 if (of->recording_time != INT64_MAX &&
469
2/2
✓ Branch 0 taken 45 times.
✓ Branch 1 taken 1296 times.
1341 dts >= of->recording_time + start_time)
470 45 return AVERROR_EOF;
471
472
4/4
✓ Branch 0 taken 887 times.
✓ Branch 1 taken 66499 times.
✓ Branch 2 taken 64 times.
✓ Branch 3 taken 823 times.
67386 if (!ms->streamcopy_started && !(pkt->flags & AV_PKT_FLAG_KEY) &&
473
1/2
✓ Branch 0 taken 64 times.
✗ Branch 1 not taken.
64 !ms->copy_initial_nonkeyframes)
474 64 return AVERROR(EAGAIN);
475
476
2/2
✓ Branch 0 taken 823 times.
✓ Branch 1 taken 66499 times.
67322 if (!ms->streamcopy_started) {
477
1/4
✗ Branch 0 not taken.
✓ Branch 1 taken 823 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
823 if (!ms->copy_prior_start &&
478 (pkt->pts == AV_NOPTS_VALUE ?
479 dts < ms->ts_copy_start :
480 pkt->pts < av_rescale_q(ms->ts_copy_start, AV_TIME_BASE_Q, pkt->time_base)))
481 return AVERROR(EAGAIN);
482
483
4/4
✓ Branch 0 taken 187 times.
✓ Branch 1 taken 636 times.
✓ Branch 2 taken 183 times.
✓ Branch 3 taken 4 times.
823 if (of->start_time != AV_NOPTS_VALUE && dts < of->start_time)
484 183 return AVERROR(EAGAIN);
485 }
486
487 67139 ts_offset = av_rescale_q(start_time, AV_TIME_BASE_Q, pkt->time_base);
488
489
2/2
✓ Branch 0 taken 57700 times.
✓ Branch 1 taken 9439 times.
67139 if (pkt->pts != AV_NOPTS_VALUE)
490 57700 pkt->pts -= ts_offset;
491
492
2/2
✓ Branch 0 taken 9205 times.
✓ Branch 1 taken 57934 times.
67139 if (pkt->dts == AV_NOPTS_VALUE) {
493 9205 pkt->dts = av_rescale_q(dts, AV_TIME_BASE_Q, pkt->time_base);
494
2/2
✓ Branch 0 taken 47438 times.
✓ Branch 1 taken 10496 times.
57934 } else if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
495 47438 pkt->pts = pkt->dts - ts_offset;
496 }
497
498 67139 pkt->dts -= ts_offset;
499
500 67139 ms->streamcopy_started = 1;
501
502 67139 return 0;
503 }
504
505 int print_sdp(const char *filename);
506
507 int print_sdp(const char *filename)
508 {
509 char sdp[16384];
510 int j = 0, ret;
511 AVIOContext *sdp_pb;
512 AVFormatContext **avc;
513
514 avc = av_malloc_array(nb_output_files, sizeof(*avc));
515 if (!avc)
516 return AVERROR(ENOMEM);
517 for (int i = 0; i < nb_output_files; i++) {
518 Muxer *mux = mux_from_of(output_files[i]);
519
520 if (!strcmp(mux->fc->oformat->name, "rtp")) {
521 avc[j] = mux->fc;
522 j++;
523 }
524 }
525
526 if (!j) {
527 av_log(NULL, AV_LOG_ERROR, "No output streams in the SDP.\n");
528 ret = AVERROR(EINVAL);
529 goto fail;
530 }
531
532 ret = av_sdp_create(avc, j, sdp, sizeof(sdp));
533 if (ret < 0)
534 goto fail;
535
536 if (!filename) {
537 printf("SDP:\n%s\n", sdp);
538 fflush(stdout);
539 } else {
540 ret = avio_open2(&sdp_pb, filename, AVIO_FLAG_WRITE, &int_cb, NULL);
541 if (ret < 0) {
542 av_log(NULL, AV_LOG_ERROR, "Failed to open sdp file '%s'\n", filename);
543 goto fail;
544 }
545
546 avio_print(sdp_pb, sdp);
547 avio_closep(&sdp_pb);
548 }
549
550 fail:
551 av_freep(&avc);
552 return ret;
553 }
554
555 6818 int mux_check_init(void *arg)
556 {
557 6818 Muxer *mux = arg;
558 6818 OutputFile *of = &mux->of;
559 6818 AVFormatContext *fc = mux->fc;
560 int ret;
561
562 6818 ret = avformat_write_header(fc, &mux->opts);
563
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (ret < 0) {
564 av_log(mux, AV_LOG_ERROR, "Could not write header (incorrect codec "
565 "parameters ?): %s\n", av_err2str(ret));
566 return ret;
567 }
568 //assert_avoptions(of->opts);
569 6818 mux->header_written = 1;
570
571 6818 av_dump_format(fc, of->index, fc->url, 1);
572 6818 atomic_fetch_add(&nb_output_dumped, 1);
573
574 6818 return 0;
575 }
576
577 7259 static int bsf_init(MuxStream *ms)
578 {
579 7259 OutputStream *ost = &ms->ost;
580 7259 AVBSFContext *ctx = ms->bsf_ctx;
581 int ret;
582
583
2/2
✓ Branch 0 taken 7126 times.
✓ Branch 1 taken 133 times.
7259 if (!ctx)
584 7126 return avcodec_parameters_copy(ost->st->codecpar, ms->par_in);
585
586 133 ret = avcodec_parameters_copy(ctx->par_in, ms->par_in);
587
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 133 times.
133 if (ret < 0)
588 return ret;
589
590 133 ctx->time_base_in = ost->st->time_base;
591
592 133 ret = av_bsf_init(ctx);
593
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 133 times.
133 if (ret < 0) {
594 av_log(ms, AV_LOG_ERROR, "Error initializing bitstream filter: %s\n",
595 ctx->filter->name);
596 return ret;
597 }
598
599 133 ret = avcodec_parameters_copy(ost->st->codecpar, ctx->par_out);
600
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 133 times.
133 if (ret < 0)
601 return ret;
602 133 ost->st->time_base = ctx->time_base_out;
603
604 133 ms->bsf_pkt = av_packet_alloc();
605
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 133 times.
133 if (!ms->bsf_pkt)
606 return AVERROR(ENOMEM);
607
608 133 return 0;
609 }
610
611 7259 int of_stream_init(OutputFile *of, OutputStream *ost,
612 const AVCodecContext *enc_ctx)
613 {
614 7259 Muxer *mux = mux_from_of(of);
615 7259 MuxStream *ms = ms_from_ost(ost);
616 int ret;
617
618
2/2
✓ Branch 0 taken 6598 times.
✓ Branch 1 taken 661 times.
7259 if (enc_ctx) {
619 // use upstream time base unless it has been overridden previously
620
3/4
✓ Branch 0 taken 2 times.
✓ Branch 1 taken 6596 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 2 times.
6598 if (ost->st->time_base.num <= 0 || ost->st->time_base.den <= 0)
621 6596 ost->st->time_base = av_add_q(enc_ctx->time_base, (AVRational){0, 1});
622
623 6598 ost->st->avg_frame_rate = enc_ctx->framerate;
624 6598 ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio;
625
626 6598 ret = avcodec_parameters_from_context(ms->par_in, enc_ctx);
627
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6598 times.
6598 if (ret < 0) {
628 av_log(ost, AV_LOG_FATAL,
629 "Error initializing the output stream codec parameters.\n");
630 return ret;
631 }
632 }
633
634 /* initialize bitstream filters for the output stream
635 * needs to be done here, because the codec id for streamcopy is not
636 * known until now */
637 7259 ret = bsf_init(ms);
638
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7259 times.
7259 if (ret < 0)
639 return ret;
640
641
2/2
✓ Branch 0 taken 5481 times.
✓ Branch 1 taken 1778 times.
7259 if (ms->stream_duration) {
642 5481 ost->st->duration = av_rescale_q(ms->stream_duration, ms->stream_duration_tb,
643 5481 ost->st->time_base);
644 }
645
646
2/2
✓ Branch 0 taken 7258 times.
✓ Branch 1 taken 1 times.
7259 if (ms->sch_idx >= 0)
647 7258 return sch_mux_stream_ready(mux->sch, of->index, ms->sch_idx);
648
649 1 return 0;
650 }
651
652 6818 static int check_written(OutputFile *of)
653 {
654 6818 int64_t total_packets_written = 0;
655 6818 int pass1_used = 1;
656 6818 int ret = 0;
657
658
2/2
✓ Branch 0 taken 7259 times.
✓ Branch 1 taken 6818 times.
14077 for (int i = 0; i < of->nb_streams; i++) {
659 7259 OutputStream *ost = of->streams[i];
660 7259 uint64_t packets_written = atomic_load(&ost->packets_written);
661
662 7259 total_packets_written += packets_written;
663
664
2/2
✓ Branch 0 taken 6598 times.
✓ Branch 1 taken 661 times.
7259 if (ost->enc &&
665
2/2
✓ Branch 0 taken 6590 times.
✓ Branch 1 taken 8 times.
6598 (ost->enc->enc_ctx->flags & (AV_CODEC_FLAG_PASS1 | AV_CODEC_FLAG_PASS2))
666 != AV_CODEC_FLAG_PASS1)
667 6590 pass1_used = 0;
668
669
2/2
✓ Branch 0 taken 48 times.
✓ Branch 1 taken 7211 times.
7259 if (!packets_written &&
670
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 48 times.
48 (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT_STREAM)) {
671 av_log(ost, AV_LOG_FATAL, "Empty output stream\n");
672 ret = err_merge(ret, AVERROR(EINVAL));
673 }
674 }
675
676
2/2
✓ Branch 0 taken 15 times.
✓ Branch 1 taken 6803 times.
6818 if (!total_packets_written) {
677 15 int level = AV_LOG_WARNING;
678
679
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 15 times.
15 if (abort_on_flags & ABORT_ON_FLAG_EMPTY_OUTPUT) {
680 ret = err_merge(ret, AVERROR(EINVAL));
681 level = AV_LOG_FATAL;
682 }
683
684
2/2
✓ Branch 0 taken 14 times.
✓ Branch 1 taken 1 times.
15 av_log(of, level, "Output file is empty, nothing was encoded%s\n",
685 pass1_used ? "" : "(check -ss / -t / -frames parameters if used)");
686 }
687
688 6818 return ret;
689 }
690
691 6818 static void mux_final_stats(Muxer *mux)
692 {
693 6818 OutputFile *of = &mux->of;
694 6818 uint64_t total_packets = 0, total_size = 0;
695 6818 uint64_t video_size = 0, audio_size = 0, subtitle_size = 0,
696 6818 extra_size = 0, other_size = 0;
697
698 6818 uint8_t overhead[16] = "unknown";
699 6818 int64_t file_size = of_filesize(of);
700
701 6818 av_log(of, AV_LOG_VERBOSE, "Output file #%d (%s):\n",
702 of->index, of->url);
703
704
2/2
✓ Branch 0 taken 7259 times.
✓ Branch 1 taken 6818 times.
14077 for (int j = 0; j < of->nb_streams; j++) {
705 7259 OutputStream *ost = of->streams[j];
706 7259 MuxStream *ms = ms_from_ost(ost);
707 7259 const AVCodecParameters *par = ost->st->codecpar;
708 7259 const enum AVMediaType type = par->codec_type;
709 7259 const uint64_t s = ms->data_size_mux;
710
711
4/4
✓ Branch 0 taken 5583 times.
✓ Branch 1 taken 1594 times.
✓ Branch 2 taken 71 times.
✓ Branch 3 taken 11 times.
7259 switch (type) {
712 5583 case AVMEDIA_TYPE_VIDEO: video_size += s; break;
713 1594 case AVMEDIA_TYPE_AUDIO: audio_size += s; break;
714 71 case AVMEDIA_TYPE_SUBTITLE: subtitle_size += s; break;
715 11 default: other_size += s; break;
716 }
717
718 7259 extra_size += par->extradata_size;
719 7259 total_size += s;
720 7259 total_packets += atomic_load(&ost->packets_written);
721
722 7259 av_log(of, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ",
723 of->index, j, av_get_media_type_string(type));
724
2/2
✓ Branch 0 taken 6598 times.
✓ Branch 1 taken 661 times.
7259 if (ost->enc) {
725 6598 av_log(of, AV_LOG_VERBOSE, "%"PRIu64" frames encoded",
726 6598 ost->enc->frames_encoded);
727
2/2
✓ Branch 0 taken 1320 times.
✓ Branch 1 taken 5278 times.
6598 if (type == AVMEDIA_TYPE_AUDIO)
728 1320 av_log(of, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->enc->samples_encoded);
729 6598 av_log(of, AV_LOG_VERBOSE, "; ");
730 }
731
732 7259 av_log(of, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ",
733 7259 atomic_load(&ost->packets_written), s);
734
735 7259 av_log(of, AV_LOG_VERBOSE, "\n");
736 }
737
738 6818 av_log(of, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
739 total_packets, total_size);
740
741
6/6
✓ Branch 0 taken 6803 times.
✓ Branch 1 taken 15 times.
✓ Branch 2 taken 6710 times.
✓ Branch 3 taken 93 times.
✓ Branch 4 taken 4679 times.
✓ Branch 5 taken 2031 times.
6818 if (total_size && file_size > 0 && file_size >= total_size) {
742 4679 snprintf(overhead, sizeof(overhead), "%f%%",
743 4679 100.0 * (file_size - total_size) / total_size);
744 }
745
746 6818 av_log(of, AV_LOG_INFO,
747 "video:%1.0fKiB audio:%1.0fKiB subtitle:%1.0fKiB other streams:%1.0fKiB "
748 "global headers:%1.0fKiB muxing overhead: %s\n",
749 video_size / 1024.0,
750 audio_size / 1024.0,
751 subtitle_size / 1024.0,
752 other_size / 1024.0,
753 extra_size / 1024.0,
754 overhead);
755 6818 }
756
757 6818 int of_write_trailer(OutputFile *of)
758 {
759 6818 Muxer *mux = mux_from_of(of);
760 6818 AVFormatContext *fc = mux->fc;
761 6818 int ret, mux_result = 0;
762
763
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (!mux->header_written) {
764 av_log(mux, AV_LOG_ERROR,
765 "Nothing was written into output file, because "
766 "at least one of its streams received no packets.\n");
767 return AVERROR(EINVAL);
768 }
769
770 6818 ret = av_write_trailer(fc);
771
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (ret < 0) {
772 av_log(mux, AV_LOG_ERROR, "Error writing trailer: %s\n", av_err2str(ret));
773 mux_result = err_merge(mux_result, ret);
774 }
775
776 6818 mux->last_filesize = filesize(fc->pb);
777
778
2/2
✓ Branch 0 taken 6725 times.
✓ Branch 1 taken 93 times.
6818 if (!(fc->oformat->flags & AVFMT_NOFILE)) {
779 6725 ret = avio_closep(&fc->pb);
780
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6725 times.
6725 if (ret < 0) {
781 av_log(mux, AV_LOG_ERROR, "Error closing file: %s\n", av_err2str(ret));
782 mux_result = err_merge(mux_result, ret);
783 }
784 }
785
786 6818 mux_final_stats(mux);
787
788 // check whether anything was actually written
789 6818 ret = check_written(of);
790 6818 mux_result = err_merge(mux_result, ret);
791
792 6818 return mux_result;
793 }
794
795 21777 static void enc_stats_uninit(EncStats *es)
796 {
797
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21777 times.
21777 for (int i = 0; i < es->nb_components; i++)
798 av_freep(&es->components[i].str);
799 21777 av_freep(&es->components);
800
801
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 21777 times.
21777 if (es->lock_initialized)
802 pthread_mutex_destroy(&es->lock);
803 21777 es->lock_initialized = 0;
804 21777 }
805
806 7259 static void ost_free(OutputStream **post)
807 {
808 7259 OutputStream *ost = *post;
809 MuxStream *ms;
810
811
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 7259 times.
7259 if (!ost)
812 return;
813 7259 ms = ms_from_ost(ost);
814
815 7259 enc_free(&ost->enc);
816 7259 fg_free(&ost->fg_simple);
817
818
2/2
✓ Branch 0 taken 8 times.
✓ Branch 1 taken 7251 times.
7259 if (ost->logfile) {
819
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 8 times.
8 if (fclose(ost->logfile))
820 av_log(ms, AV_LOG_ERROR,
821 "Error closing logfile, loss of information possible: %s\n",
822 av_err2str(AVERROR(errno)));
823 8 ost->logfile = NULL;
824 }
825
826 7259 avcodec_parameters_free(&ms->par_in);
827
828 7259 av_bsf_free(&ms->bsf_ctx);
829 7259 av_packet_free(&ms->bsf_pkt);
830
831 7259 av_packet_free(&ms->pkt);
832
833 7259 av_freep(&ost->kf.pts);
834 7259 av_expr_free(ost->kf.pexpr);
835
836 7259 av_freep(&ost->logfile_prefix);
837
838 7259 av_freep(&ost->attachment_filename);
839
840 7259 enc_stats_uninit(&ost->enc_stats_pre);
841 7259 enc_stats_uninit(&ost->enc_stats_post);
842 7259 enc_stats_uninit(&ms->stats);
843
844 7259 av_freep(post);
845 }
846
847 6818 static void fc_close(AVFormatContext **pfc)
848 {
849 6818 AVFormatContext *fc = *pfc;
850
851
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (!fc)
852 return;
853
854
2/2
✓ Branch 0 taken 6725 times.
✓ Branch 1 taken 93 times.
6818 if (!(fc->oformat->flags & AVFMT_NOFILE))
855 6725 avio_closep(&fc->pb);
856 6818 avformat_free_context(fc);
857
858 6818 *pfc = NULL;
859 }
860
861 6818 void of_free(OutputFile **pof)
862 {
863 6818 OutputFile *of = *pof;
864 Muxer *mux;
865
866
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6818 times.
6818 if (!of)
867 return;
868 6818 mux = mux_from_of(of);
869
870 6818 sq_free(&mux->sq_mux);
871
872
2/2
✓ Branch 0 taken 7259 times.
✓ Branch 1 taken 6818 times.
14077 for (int i = 0; i < of->nb_streams; i++)
873 7259 ost_free(&of->streams[i]);
874 6818 av_freep(&of->streams);
875
876 6818 av_freep(&mux->sch_stream_idx);
877
878 6818 av_dict_free(&mux->opts);
879 6818 av_dict_free(&mux->enc_opts_used);
880
881 6818 av_packet_free(&mux->sq_pkt);
882
883 6818 fc_close(&mux->fc);
884
885 6818 av_freep(pof);
886 }
887
888 27675 int64_t of_filesize(OutputFile *of)
889 {
890 27675 Muxer *mux = mux_from_of(of);
891 27675 return atomic_load(&mux->last_filesize);
892 }
893