FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/dashenc.c
Date: 2023-12-07 21:54:23
Exec Total Coverage
Lines: 0 1411 0.0%
Functions: 0 40 0.0%
Branches: 0 1115 0.0%
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1 /*
2 * MPEG-DASH ISO BMFF segmenter
3 * Copyright (c) 2014 Martin Storsjo
4 * Copyright (c) 2018 Akamai Technologies, Inc.
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include "config.h"
24 #include "config_components.h"
25 #include <time.h>
26 #if HAVE_UNISTD_H
27 #include <unistd.h>
28 #endif
29
30 #include "libavutil/avassert.h"
31 #include "libavutil/avutil.h"
32 #include "libavutil/avstring.h"
33 #include "libavutil/bprint.h"
34 #include "libavutil/intreadwrite.h"
35 #include "libavutil/mathematics.h"
36 #include "libavutil/opt.h"
37 #include "libavutil/parseutils.h"
38 #include "libavutil/rational.h"
39 #include "libavutil/time.h"
40 #include "libavutil/time_internal.h"
41
42 #include "libavcodec/avcodec.h"
43
44 #include "av1.h"
45 #include "avc.h"
46 #include "avformat.h"
47 #include "avio_internal.h"
48 #include "hlsplaylist.h"
49 #if CONFIG_HTTP_PROTOCOL
50 #include "http.h"
51 #endif
52 #include "internal.h"
53 #include "isom.h"
54 #include "mux.h"
55 #include "os_support.h"
56 #include "url.h"
57 #include "vpcc.h"
58 #include "dash.h"
59
60 typedef enum {
61 SEGMENT_TYPE_AUTO = 0,
62 SEGMENT_TYPE_MP4,
63 SEGMENT_TYPE_WEBM,
64 SEGMENT_TYPE_NB
65 } SegmentType;
66
67 enum {
68 FRAG_TYPE_NONE = 0,
69 FRAG_TYPE_EVERY_FRAME,
70 FRAG_TYPE_DURATION,
71 FRAG_TYPE_PFRAMES,
72 FRAG_TYPE_NB
73 };
74
75 #define MPD_PROFILE_DASH 1
76 #define MPD_PROFILE_DVB 2
77
78 typedef struct Segment {
79 char file[1024];
80 int64_t start_pos;
81 int range_length, index_length;
82 int64_t time;
83 double prog_date_time;
84 int64_t duration;
85 int n;
86 } Segment;
87
88 typedef struct AdaptationSet {
89 int id;
90 char *descriptor;
91 int64_t seg_duration;
92 int64_t frag_duration;
93 int frag_type;
94 enum AVMediaType media_type;
95 AVDictionary *metadata;
96 AVRational min_frame_rate, max_frame_rate;
97 int ambiguous_frame_rate;
98 int64_t max_frag_duration;
99 int max_width, max_height;
100 int nb_streams;
101 AVRational par;
102 int trick_idx;
103 } AdaptationSet;
104
105 typedef struct OutputStream {
106 AVFormatContext *ctx;
107 int ctx_inited, as_idx;
108 AVIOContext *out;
109 AVCodecParserContext *parser;
110 AVCodecContext *parser_avctx;
111 int packets_written;
112 char initfile[1024];
113 int64_t init_start_pos, pos;
114 int init_range_length;
115 int nb_segments, segments_size, segment_index;
116 int64_t seg_duration;
117 int64_t frag_duration;
118 int64_t last_duration;
119 Segment **segments;
120 int64_t first_pts, start_pts, max_pts;
121 int64_t last_dts, last_pts;
122 int last_flags;
123 int bit_rate;
124 int first_segment_bit_rate;
125 SegmentType segment_type; /* segment type selected for this particular stream */
126 const char *format_name;
127 const char *extension_name;
128 const char *single_file_name; /* file names selected for this particular stream */
129 const char *init_seg_name;
130 const char *media_seg_name;
131
132 char codec_str[100];
133 int written_len;
134 char filename[1024];
135 char full_path[1024];
136 char temp_path[1024];
137 double availability_time_offset;
138 AVProducerReferenceTime producer_reference_time;
139 char producer_reference_time_str[100];
140 int total_pkt_size;
141 int64_t total_pkt_duration;
142 int muxer_overhead;
143 int frag_type;
144 int64_t gop_size;
145 AVRational sar;
146 int coding_dependency;
147 } OutputStream;
148
149 typedef struct DASHContext {
150 const AVClass *class; /* Class for private options. */
151 char *adaptation_sets;
152 AdaptationSet *as;
153 int nb_as;
154 int window_size;
155 int extra_window_size;
156 int64_t seg_duration;
157 int64_t frag_duration;
158 int remove_at_exit;
159 int use_template;
160 int use_timeline;
161 int single_file;
162 OutputStream *streams;
163 int has_video;
164 int64_t last_duration;
165 int64_t total_duration;
166 char availability_start_time[100];
167 time_t start_time_s;
168 int64_t presentation_time_offset;
169 char dirname[1024];
170 const char *single_file_name; /* file names as specified in options */
171 const char *init_seg_name;
172 const char *media_seg_name;
173 const char *utc_timing_url;
174 const char *method;
175 const char *user_agent;
176 AVDictionary *http_opts;
177 int hls_playlist;
178 const char *hls_master_name;
179 int http_persistent;
180 int master_playlist_created;
181 AVIOContext *mpd_out;
182 AVIOContext *m3u8_out;
183 AVIOContext *http_delete;
184 int streaming;
185 int64_t timeout;
186 int index_correction;
187 AVDictionary *format_options;
188 int global_sidx;
189 SegmentType segment_type_option; /* segment type as specified in options */
190 int ignore_io_errors;
191 int lhls;
192 int ldash;
193 int master_publish_rate;
194 int nr_of_streams_to_flush;
195 int nr_of_streams_flushed;
196 int frag_type;
197 int write_prft;
198 int64_t max_gop_size;
199 int64_t max_segment_duration;
200 int profile;
201 int64_t target_latency;
202 int target_latency_refid;
203 AVRational min_playback_rate;
204 AVRational max_playback_rate;
205 int64_t update_period;
206 } DASHContext;
207
208 static const struct codec_string {
209 enum AVCodecID id;
210 const char str[8];
211 } codecs[] = {
212 { AV_CODEC_ID_VP8, "vp8" },
213 { AV_CODEC_ID_VP9, "vp9" },
214 { AV_CODEC_ID_VORBIS, "vorbis" },
215 { AV_CODEC_ID_OPUS, "opus" },
216 { AV_CODEC_ID_FLAC, "flac" },
217 { AV_CODEC_ID_NONE }
218 };
219
220 ✗ static int dashenc_io_open(AVFormatContext *s, AVIOContext **pb, char *filename,
221 AVDictionary **options) {
222 ✗ DASHContext *c = s->priv_data;
223 ✗ int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
224 ✗ int err = AVERROR_MUXER_NOT_FOUND;
225 ✗ if (!*pb || !http_base_proto || !c->http_persistent) {
226 ✗ err = s->io_open(s, pb, filename, AVIO_FLAG_WRITE, options);
227 #if CONFIG_HTTP_PROTOCOL
228 } else {
229 ✗ URLContext *http_url_context = ffio_geturlcontext(*pb);
230 ✗ av_assert0(http_url_context);
231 ✗ err = ff_http_do_new_request(http_url_context, filename);
232 ✗ if (err < 0)
233 ✗ ff_format_io_close(s, pb);
234 #endif
235 }
236 ✗ return err;
237 }
238
239 ✗ static void dashenc_io_close(AVFormatContext *s, AVIOContext **pb, char *filename) {
240 ✗ DASHContext *c = s->priv_data;
241 ✗ int http_base_proto = filename ? ff_is_http_proto(filename) : 0;
242
243 ✗ if (!*pb)
244 ✗ return;
245
246 ✗ if (!http_base_proto || !c->http_persistent) {
247 ✗ ff_format_io_close(s, pb);
248 #if CONFIG_HTTP_PROTOCOL
249 } else {
250 ✗ URLContext *http_url_context = ffio_geturlcontext(*pb);
251 ✗ av_assert0(http_url_context);
252 ✗ avio_flush(*pb);
253 ✗ ffurl_shutdown(http_url_context, AVIO_FLAG_WRITE);
254 #endif
255 }
256 }
257
258 ✗ static const char *get_format_str(SegmentType segment_type)
259 {
260 ✗ switch (segment_type) {
261 ✗ case SEGMENT_TYPE_MP4: return "mp4";
262 ✗ case SEGMENT_TYPE_WEBM: return "webm";
263 }
264 ✗ return NULL;
265 }
266
267 ✗ static const char *get_extension_str(SegmentType type, int single_file)
268 {
269 ✗ switch (type) {
270
271 ✗ case SEGMENT_TYPE_MP4: return single_file ? "mp4" : "m4s";
272 ✗ case SEGMENT_TYPE_WEBM: return "webm";
273 ✗ default: return NULL;
274 }
275 }
276
277 ✗ static int handle_io_open_error(AVFormatContext *s, int err, char *url) {
278 ✗ DASHContext *c = s->priv_data;
279 char errbuf[AV_ERROR_MAX_STRING_SIZE];
280 ✗ av_strerror(err, errbuf, sizeof(errbuf));
281 ✗ av_log(s, c->ignore_io_errors ? AV_LOG_WARNING : AV_LOG_ERROR,
282 "Unable to open %s for writing: %s\n", url, errbuf);
283 ✗ return c->ignore_io_errors ? 0 : err;
284 }
285
286 ✗ static inline SegmentType select_segment_type(SegmentType segment_type, enum AVCodecID codec_id)
287 {
288 ✗ if (segment_type == SEGMENT_TYPE_AUTO) {
289 ✗ if (codec_id == AV_CODEC_ID_OPUS || codec_id == AV_CODEC_ID_VORBIS ||
290 ✗ codec_id == AV_CODEC_ID_VP8 || codec_id == AV_CODEC_ID_VP9) {
291 ✗ segment_type = SEGMENT_TYPE_WEBM;
292 } else {
293 ✗ segment_type = SEGMENT_TYPE_MP4;
294 }
295 }
296
297 ✗ return segment_type;
298 }
299
300 ✗ static int init_segment_types(AVFormatContext *s)
301 {
302 ✗ DASHContext *c = s->priv_data;
303 ✗ int has_mp4_streams = 0;
304 ✗ for (int i = 0; i < s->nb_streams; ++i) {
305 ✗ OutputStream *os = &c->streams[i];
306 ✗ SegmentType segment_type = select_segment_type(
307 ✗ c->segment_type_option, s->streams[i]->codecpar->codec_id);
308 ✗ os->segment_type = segment_type;
309 ✗ os->format_name = get_format_str(segment_type);
310 ✗ if (!os->format_name) {
311 ✗ av_log(s, AV_LOG_ERROR, "Could not select DASH segment type for stream %d\n", i);
312 ✗ return AVERROR_MUXER_NOT_FOUND;
313 }
314 ✗ os->extension_name = get_extension_str(segment_type, c->single_file);
315 ✗ if (!os->extension_name) {
316 ✗ av_log(s, AV_LOG_ERROR, "Could not get extension type for stream %d\n", i);
317 ✗ return AVERROR_MUXER_NOT_FOUND;
318 }
319
320 ✗ has_mp4_streams |= segment_type == SEGMENT_TYPE_MP4;
321 }
322
323 ✗ if (c->hls_playlist && !has_mp4_streams) {
324 ✗ av_log(s, AV_LOG_WARNING, "No mp4 streams, disabling HLS manifest generation\n");
325 ✗ c->hls_playlist = 0;
326 }
327
328 ✗ return 0;
329 }
330
331 ✗ static void set_vp9_codec_str(AVFormatContext *s, AVCodecParameters *par,
332 AVRational *frame_rate, char *str, int size) {
333 VPCC vpcc;
334 ✗ int ret = ff_isom_get_vpcc_features(s, par, NULL, 0, frame_rate, &vpcc);
335 ✗ if (ret == 0) {
336 ✗ av_strlcatf(str, size, "vp09.%02d.%02d.%02d",
337 vpcc.profile, vpcc.level, vpcc.bitdepth);
338 } else {
339 // Default to just vp9 in case of error while finding out profile or level
340 ✗ av_log(s, AV_LOG_WARNING, "Could not find VP9 profile and/or level\n");
341 ✗ av_strlcpy(str, "vp9", size);
342 }
343 ✗ return;
344 }
345
346 ✗ static void set_codec_str(AVFormatContext *s, AVCodecParameters *par,
347 AVRational *frame_rate, char *str, int size)
348 {
349 ✗ const AVCodecTag *tags[2] = { NULL, NULL };
350 uint32_t tag;
351 int i;
352
353 // common Webm codecs are not part of RFC 6381
354 ✗ for (i = 0; codecs[i].id != AV_CODEC_ID_NONE; i++)
355 ✗ if (codecs[i].id == par->codec_id) {
356 ✗ if (codecs[i].id == AV_CODEC_ID_VP9) {
357 ✗ set_vp9_codec_str(s, par, frame_rate, str, size);
358 } else {
359 ✗ av_strlcpy(str, codecs[i].str, size);
360 }
361 ✗ return;
362 }
363
364 // for codecs part of RFC 6381
365 ✗ if (par->codec_type == AVMEDIA_TYPE_VIDEO)
366 ✗ tags[0] = ff_codec_movvideo_tags;
367 ✗ else if (par->codec_type == AVMEDIA_TYPE_AUDIO)
368 ✗ tags[0] = ff_codec_movaudio_tags;
369 else
370 ✗ return;
371
372 ✗ tag = par->codec_tag;
373 ✗ if (!tag)
374 ✗ tag = av_codec_get_tag(tags, par->codec_id);
375 ✗ if (!tag)
376 ✗ return;
377 ✗ if (size < 5)
378 ✗ return;
379
380 ✗ AV_WL32(str, tag);
381 ✗ str[4] = '\0';
382 ✗ if (!strcmp(str, "mp4a") || !strcmp(str, "mp4v")) {
383 uint32_t oti;
384 ✗ tags[0] = ff_mp4_obj_type;
385 ✗ oti = av_codec_get_tag(tags, par->codec_id);
386 ✗ if (oti)
387 ✗ av_strlcatf(str, size, ".%02"PRIx32, oti);
388 else
389 ✗ return;
390
391 ✗ if (tag == MKTAG('m', 'p', '4', 'a')) {
392 ✗ if (par->extradata_size >= 2) {
393 ✗ int aot = par->extradata[0] >> 3;
394 ✗ if (aot == 31)
395 ✗ aot = ((AV_RB16(par->extradata) >> 5) & 0x3f) + 32;
396 ✗ av_strlcatf(str, size, ".%d", aot);
397 }
398 ✗ } else if (tag == MKTAG('m', 'p', '4', 'v')) {
399 // Unimplemented, should output ProfileLevelIndication as a decimal number
400 ✗ av_log(s, AV_LOG_WARNING, "Incomplete RFC 6381 codec string for mp4v\n");
401 }
402 ✗ } else if (!strcmp(str, "avc1")) {
403 ✗ uint8_t *tmpbuf = NULL;
404 ✗ uint8_t *extradata = par->extradata;
405 ✗ int extradata_size = par->extradata_size;
406 ✗ if (!extradata_size)
407 ✗ return;
408 ✗ if (extradata[0] != 1) {
409 AVIOContext *pb;
410 ✗ if (avio_open_dyn_buf(&pb) < 0)
411 ✗ return;
412 ✗ if (ff_isom_write_avcc(pb, extradata, extradata_size) < 0) {
413 ✗ ffio_free_dyn_buf(&pb);
414 ✗ return;
415 }
416 ✗ extradata_size = avio_close_dyn_buf(pb, &extradata);
417 ✗ tmpbuf = extradata;
418 }
419
420 ✗ if (extradata_size >= 4)
421 ✗ av_strlcatf(str, size, ".%02x%02x%02x",
422 ✗ extradata[1], extradata[2], extradata[3]);
423 ✗ av_free(tmpbuf);
424 ✗ } else if (!strcmp(str, "av01")) {
425 AV1SequenceParameters seq;
426 ✗ if (!par->extradata_size)
427 ✗ return;
428 ✗ if (ff_av1_parse_seq_header(&seq, par->extradata, par->extradata_size) < 0)
429 ✗ return;
430
431 ✗ av_strlcatf(str, size, ".%01u.%02u%s.%02u",
432 ✗ seq.profile, seq.level, seq.tier ? "H" : "M", seq.bitdepth);
433 ✗ if (seq.color_description_present_flag)
434 ✗ av_strlcatf(str, size, ".%01u.%01u%01u%01u.%02u.%02u.%02u.%01u",
435 ✗ seq.monochrome,
436 ✗ seq.chroma_subsampling_x, seq.chroma_subsampling_y, seq.chroma_sample_position,
437 ✗ seq.color_primaries, seq.transfer_characteristics, seq.matrix_coefficients,
438 ✗ seq.color_range);
439 }
440 }
441
442 ✗ static int flush_dynbuf(DASHContext *c, OutputStream *os, int *range_length)
443 {
444 uint8_t *buffer;
445
446 ✗ if (!os->ctx->pb) {
447 ✗ return AVERROR(EINVAL);
448 }
449
450 // flush
451 ✗ av_write_frame(os->ctx, NULL);
452 ✗ avio_flush(os->ctx->pb);
453
454 ✗ if (!c->single_file) {
455 // write out to file
456 ✗ *range_length = avio_close_dyn_buf(os->ctx->pb, &buffer);
457 ✗ os->ctx->pb = NULL;
458 ✗ if (os->out)
459 ✗ avio_write(os->out, buffer + os->written_len, *range_length - os->written_len);
460 ✗ os->written_len = 0;
461 ✗ av_free(buffer);
462
463 // re-open buffer
464 ✗ return avio_open_dyn_buf(&os->ctx->pb);
465 } else {
466 ✗ *range_length = avio_tell(os->ctx->pb) - os->pos;
467 ✗ return 0;
468 }
469 }
470
471 ✗ static void set_http_options(AVDictionary **options, DASHContext *c)
472 {
473 ✗ if (c->method)
474 ✗ av_dict_set(options, "method", c->method, 0);
475 ✗ av_dict_copy(options, c->http_opts, 0);
476 ✗ if (c->user_agent)
477 ✗ av_dict_set(options, "user_agent", c->user_agent, 0);
478 ✗ if (c->http_persistent)
479 ✗ av_dict_set_int(options, "multiple_requests", 1, 0);
480 ✗ if (c->timeout >= 0)
481 ✗ av_dict_set_int(options, "timeout", c->timeout, 0);
482 ✗ }
483
484 ✗ static void get_hls_playlist_name(char *playlist_name, int string_size,
485 const char *base_url, int id) {
486 ✗ if (base_url)
487 ✗ snprintf(playlist_name, string_size, "%smedia_%d.m3u8", base_url, id);
488 else
489 ✗ snprintf(playlist_name, string_size, "media_%d.m3u8", id);
490 ✗ }
491
492 ✗ static void get_start_index_number(OutputStream *os, DASHContext *c,
493 int *start_index, int *start_number) {
494 ✗ *start_index = 0;
495 ✗ *start_number = 1;
496 ✗ if (c->window_size) {
497 ✗ *start_index = FFMAX(os->nb_segments - c->window_size, 0);
498 ✗ *start_number = FFMAX(os->segment_index - c->window_size, 1);
499 }
500 ✗ }
501
502 ✗ static void write_hls_media_playlist(OutputStream *os, AVFormatContext *s,
503 int representation_id, int final,
504 char *prefetch_url) {
505 ✗ DASHContext *c = s->priv_data;
506 ✗ int timescale = os->ctx->streams[0]->time_base.den;
507 char temp_filename_hls[1024];
508 char filename_hls[1024];
509 ✗ AVDictionary *http_opts = NULL;
510 ✗ int target_duration = 0;
511 ✗ int ret = 0;
512 ✗ const char *proto = avio_find_protocol_name(c->dirname);
513 ✗ int use_rename = proto && !strcmp(proto, "file");
514 int i, start_index, start_number;
515 ✗ double prog_date_time = 0;
516
517 ✗ get_start_index_number(os, c, &start_index, &start_number);
518
519 ✗ if (!c->hls_playlist || start_index >= os->nb_segments ||
520 ✗ os->segment_type != SEGMENT_TYPE_MP4)
521 ✗ return;
522
523 ✗ get_hls_playlist_name(filename_hls, sizeof(filename_hls),
524 ✗ c->dirname, representation_id);
525
526 ✗ snprintf(temp_filename_hls, sizeof(temp_filename_hls), use_rename ? "%s.tmp" : "%s", filename_hls);
527
528 ✗ set_http_options(&http_opts, c);
529 ✗ ret = dashenc_io_open(s, &c->m3u8_out, temp_filename_hls, &http_opts);
530 ✗ av_dict_free(&http_opts);
531 ✗ if (ret < 0) {
532 ✗ handle_io_open_error(s, ret, temp_filename_hls);
533 ✗ return;
534 }
535 ✗ for (i = start_index; i < os->nb_segments; i++) {
536 ✗ Segment *seg = os->segments[i];
537 ✗ double duration = (double) seg->duration / timescale;
538 ✗ if (target_duration <= duration)
539 ✗ target_duration = lrint(duration);
540 }
541
542 ✗ ff_hls_write_playlist_header(c->m3u8_out, 6, -1, target_duration,
543 start_number, PLAYLIST_TYPE_NONE, 0);
544
545 ✗ ff_hls_write_init_file(c->m3u8_out, os->initfile, c->single_file,
546 ✗ os->init_range_length, os->init_start_pos);
547
548 ✗ for (i = start_index; i < os->nb_segments; i++) {
549 ✗ Segment *seg = os->segments[i];
550
551 ✗ if (fabs(prog_date_time) < 1e-7) {
552 ✗ if (os->nb_segments == 1)
553 ✗ prog_date_time = c->start_time_s;
554 else
555 ✗ prog_date_time = seg->prog_date_time;
556 }
557 ✗ seg->prog_date_time = prog_date_time;
558
559 ✗ ret = ff_hls_write_file_entry(c->m3u8_out, 0, c->single_file,
560 ✗ (double) seg->duration / timescale, 0,
561 ✗ seg->range_length, seg->start_pos, NULL,
562 ✗ c->single_file ? os->initfile : seg->file,
563 &prog_date_time, 0, 0, 0);
564 ✗ if (ret < 0) {
565 ✗ av_log(os->ctx, AV_LOG_WARNING, "ff_hls_write_file_entry get error\n");
566 }
567 }
568
569 ✗ if (prefetch_url)
570 ✗ avio_printf(c->m3u8_out, "#EXT-X-PREFETCH:%s\n", prefetch_url);
571
572 ✗ if (final)
573 ✗ ff_hls_write_end_list(c->m3u8_out);
574
575 ✗ dashenc_io_close(s, &c->m3u8_out, temp_filename_hls);
576
577 ✗ if (use_rename)
578 ✗ ff_rename(temp_filename_hls, filename_hls, os->ctx);
579 }
580
581 ✗ static int flush_init_segment(AVFormatContext *s, OutputStream *os)
582 {
583 ✗ DASHContext *c = s->priv_data;
584 int ret, range_length;
585
586 ✗ ret = flush_dynbuf(c, os, &range_length);
587 ✗ if (ret < 0)
588 ✗ return ret;
589
590 ✗ os->pos = os->init_range_length = range_length;
591 ✗ if (!c->single_file) {
592 char filename[1024];
593 ✗ snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->initfile);
594 ✗ dashenc_io_close(s, &os->out, filename);
595 }
596 ✗ return 0;
597 }
598
599 ✗ static void dash_free(AVFormatContext *s)
600 {
601 ✗ DASHContext *c = s->priv_data;
602 int i, j;
603
604 ✗ if (c->as) {
605 ✗ for (i = 0; i < c->nb_as; i++) {
606 ✗ av_dict_free(&c->as[i].metadata);
607 ✗ av_freep(&c->as[i].descriptor);
608 }
609 ✗ av_freep(&c->as);
610 ✗ c->nb_as = 0;
611 }
612
613 ✗ if (!c->streams)
614 ✗ return;
615 ✗ for (i = 0; i < s->nb_streams; i++) {
616 ✗ OutputStream *os = &c->streams[i];
617 ✗ if (os->ctx && os->ctx->pb) {
618 ✗ if (!c->single_file)
619 ✗ ffio_free_dyn_buf(&os->ctx->pb);
620 else
621 ✗ avio_close(os->ctx->pb);
622 }
623 ✗ ff_format_io_close(s, &os->out);
624 ✗ avformat_free_context(os->ctx);
625 ✗ avcodec_free_context(&os->parser_avctx);
626 ✗ av_parser_close(os->parser);
627 ✗ for (j = 0; j < os->nb_segments; j++)
628 ✗ av_free(os->segments[j]);
629 ✗ av_free(os->segments);
630 ✗ av_freep(&os->single_file_name);
631 ✗ av_freep(&os->init_seg_name);
632 ✗ av_freep(&os->media_seg_name);
633 }
634 ✗ av_freep(&c->streams);
635
636 ✗ ff_format_io_close(s, &c->mpd_out);
637 ✗ ff_format_io_close(s, &c->m3u8_out);
638 ✗ ff_format_io_close(s, &c->http_delete);
639 }
640
641 ✗ static void output_segment_list(OutputStream *os, AVIOContext *out, AVFormatContext *s,
642 int representation_id, int final)
643 {
644 ✗ DASHContext *c = s->priv_data;
645 int i, start_index, start_number;
646 ✗ get_start_index_number(os, c, &start_index, &start_number);
647
648 ✗ if (c->use_template) {
649 ✗ int timescale = c->use_timeline ? os->ctx->streams[0]->time_base.den : AV_TIME_BASE;
650 ✗ avio_printf(out, "\t\t\t\t<SegmentTemplate timescale=\"%d\" ", timescale);
651 ✗ if (!c->use_timeline) {
652 ✗ avio_printf(out, "duration=\"%"PRId64"\" ", os->seg_duration);
653 ✗ if (c->streaming && os->availability_time_offset)
654 ✗ avio_printf(out, "availabilityTimeOffset=\"%.3f\" ",
655 os->availability_time_offset);
656 }
657 ✗ if (c->streaming && os->availability_time_offset && !final)
658 ✗ avio_printf(out, "availabilityTimeComplete=\"false\" ");
659
660 ✗ avio_printf(out, "initialization=\"%s\" media=\"%s\" startNumber=\"%d\"", os->init_seg_name, os->media_seg_name, c->use_timeline ? start_number : 1);
661 ✗ if (c->presentation_time_offset)
662 ✗ avio_printf(out, " presentationTimeOffset=\"%"PRId64"\"", c->presentation_time_offset);
663 ✗ avio_printf(out, ">\n");
664 ✗ if (c->use_timeline) {
665 ✗ int64_t cur_time = 0;
666 ✗ avio_printf(out, "\t\t\t\t\t<SegmentTimeline>\n");
667 ✗ for (i = start_index; i < os->nb_segments; ) {
668 ✗ Segment *seg = os->segments[i];
669 ✗ int repeat = 0;
670 ✗ avio_printf(out, "\t\t\t\t\t\t<S ");
671 ✗ if (i == start_index || seg->time != cur_time) {
672 ✗ cur_time = seg->time;
673 ✗ avio_printf(out, "t=\"%"PRId64"\" ", seg->time);
674 }
675 ✗ avio_printf(out, "d=\"%"PRId64"\" ", seg->duration);
676 ✗ while (i + repeat + 1 < os->nb_segments &&
677 ✗ os->segments[i + repeat + 1]->duration == seg->duration &&
678 ✗ os->segments[i + repeat + 1]->time == os->segments[i + repeat]->time + os->segments[i + repeat]->duration)
679 ✗ repeat++;
680 ✗ if (repeat > 0)
681 ✗ avio_printf(out, "r=\"%d\" ", repeat);
682 ✗ avio_printf(out, "/>\n");
683 ✗ i += 1 + repeat;
684 ✗ cur_time += (1 + repeat) * seg->duration;
685 }
686 ✗ avio_printf(out, "\t\t\t\t\t</SegmentTimeline>\n");
687 }
688 ✗ avio_printf(out, "\t\t\t\t</SegmentTemplate>\n");
689 ✗ } else if (c->single_file) {
690 ✗ avio_printf(out, "\t\t\t\t<BaseURL>%s</BaseURL>\n", os->initfile);
691 ✗ avio_printf(out, "\t\t\t\t<SegmentList timescale=\"%d\" duration=\"%"PRId64"\" startNumber=\"%d\">\n", AV_TIME_BASE, FFMIN(os->seg_duration, os->last_duration), start_number);
692 ✗ avio_printf(out, "\t\t\t\t\t<Initialization range=\"%"PRId64"-%"PRId64"\" />\n", os->init_start_pos, os->init_start_pos + os->init_range_length - 1);
693 ✗ for (i = start_index; i < os->nb_segments; i++) {
694 ✗ Segment *seg = os->segments[i];
695 ✗ avio_printf(out, "\t\t\t\t\t<SegmentURL mediaRange=\"%"PRId64"-%"PRId64"\" ", seg->start_pos, seg->start_pos + seg->range_length - 1);
696 ✗ if (seg->index_length)
697 ✗ avio_printf(out, "indexRange=\"%"PRId64"-%"PRId64"\" ", seg->start_pos, seg->start_pos + seg->index_length - 1);
698 ✗ avio_printf(out, "/>\n");
699 }
700 ✗ avio_printf(out, "\t\t\t\t</SegmentList>\n");
701 } else {
702 ✗ avio_printf(out, "\t\t\t\t<SegmentList timescale=\"%d\" duration=\"%"PRId64"\" startNumber=\"%d\">\n", AV_TIME_BASE, FFMIN(os->seg_duration, os->last_duration), start_number);
703 ✗ avio_printf(out, "\t\t\t\t\t<Initialization sourceURL=\"%s\" />\n", os->initfile);
704 ✗ for (i = start_index; i < os->nb_segments; i++) {
705 ✗ Segment *seg = os->segments[i];
706 ✗ avio_printf(out, "\t\t\t\t\t<SegmentURL media=\"%s\" />\n", seg->file);
707 }
708 ✗ avio_printf(out, "\t\t\t\t</SegmentList>\n");
709 }
710 ✗ if (!c->lhls || final) {
711 ✗ write_hls_media_playlist(os, s, representation_id, final, NULL);
712 }
713
714 ✗ }
715
716 ✗ static char *xmlescape(const char *str) {
717 ✗ int outlen = strlen(str)*3/2 + 6;
718 ✗ char *out = av_realloc(NULL, outlen + 1);
719 ✗ int pos = 0;
720 ✗ if (!out)
721 ✗ return NULL;
722 ✗ for (; *str; str++) {
723 ✗ if (pos + 6 > outlen) {
724 char *tmp;
725 ✗ outlen = 2 * outlen + 6;
726 ✗ tmp = av_realloc(out, outlen + 1);
727 ✗ if (!tmp) {
728 ✗ av_free(out);
729 ✗ return NULL;
730 }
731 ✗ out = tmp;
732 }
733 ✗ if (*str == '&') {
734 ✗ memcpy(&out[pos], "&amp;", 5);
735 ✗ pos += 5;
736 ✗ } else if (*str == '<') {
737 ✗ memcpy(&out[pos], "&lt;", 4);
738 ✗ pos += 4;
739 ✗ } else if (*str == '>') {
740 ✗ memcpy(&out[pos], "&gt;", 4);
741 ✗ pos += 4;
742 ✗ } else if (*str == '\'') {
743 ✗ memcpy(&out[pos], "&apos;", 6);
744 ✗ pos += 6;
745 ✗ } else if (*str == '\"') {
746 ✗ memcpy(&out[pos], "&quot;", 6);
747 ✗ pos += 6;
748 } else {
749 ✗ out[pos++] = *str;
750 }
751 }
752 ✗ out[pos] = '\0';
753 ✗ return out;
754 }
755
756 ✗ static void write_time(AVIOContext *out, int64_t time)
757 {
758 ✗ int seconds = time / AV_TIME_BASE;
759 ✗ int fractions = time % AV_TIME_BASE;
760 ✗ int minutes = seconds / 60;
761 ✗ int hours = minutes / 60;
762 ✗ seconds %= 60;
763 ✗ minutes %= 60;
764 ✗ avio_printf(out, "PT");
765 ✗ if (hours)
766 ✗ avio_printf(out, "%dH", hours);
767 ✗ if (hours || minutes)
768 ✗ avio_printf(out, "%dM", minutes);
769 ✗ avio_printf(out, "%d.%dS", seconds, fractions / (AV_TIME_BASE / 10));
770 ✗ }
771
772 ✗ static void format_date(char *buf, int size, int64_t time_us)
773 {
774 struct tm *ptm, tmbuf;
775 ✗ int64_t time_ms = time_us / 1000;
776 ✗ const time_t time_s = time_ms / 1000;
777 ✗ int millisec = time_ms - (time_s * 1000);
778 ✗ ptm = gmtime_r(&time_s, &tmbuf);
779 ✗ if (ptm) {
780 int len;
781 ✗ if (!strftime(buf, size, "%Y-%m-%dT%H:%M:%S", ptm)) {
782 ✗ buf[0] = '\0';
783 ✗ return;
784 }
785 ✗ len = strlen(buf);
786 ✗ snprintf(buf + len, size - len, ".%03dZ", millisec);
787 }
788 }
789
790 ✗ static int write_adaptation_set(AVFormatContext *s, AVIOContext *out, int as_index,
791 int final)
792 {
793 ✗ DASHContext *c = s->priv_data;
794 ✗ AdaptationSet *as = &c->as[as_index];
795 AVDictionaryEntry *lang, *role;
796 int i;
797
798 ✗ avio_printf(out, "\t\t<AdaptationSet id=\"%d\" contentType=\"%s\" startWithSAP=\"1\" segmentAlignment=\"true\" bitstreamSwitching=\"true\"",
799 ✗ as->id, as->media_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio");
800 ✗ if (as->media_type == AVMEDIA_TYPE_VIDEO && as->max_frame_rate.num && !as->ambiguous_frame_rate && av_cmp_q(as->min_frame_rate, as->max_frame_rate) < 0)
801 ✗ avio_printf(out, " maxFrameRate=\"%d/%d\"", as->max_frame_rate.num, as->max_frame_rate.den);
802 ✗ else if (as->media_type == AVMEDIA_TYPE_VIDEO && as->max_frame_rate.num && !as->ambiguous_frame_rate && !av_cmp_q(as->min_frame_rate, as->max_frame_rate))
803 ✗ avio_printf(out, " frameRate=\"%d/%d\"", as->max_frame_rate.num, as->max_frame_rate.den);
804 ✗ if (as->media_type == AVMEDIA_TYPE_VIDEO) {
805 ✗ avio_printf(out, " maxWidth=\"%d\" maxHeight=\"%d\"", as->max_width, as->max_height);
806 ✗ avio_printf(out, " par=\"%d:%d\"", as->par.num, as->par.den);
807 }
808 ✗ lang = av_dict_get(as->metadata, "language", NULL, 0);
809 ✗ if (lang)
810 ✗ avio_printf(out, " lang=\"%s\"", lang->value);
811 ✗ avio_printf(out, ">\n");
812
813 ✗ if (!final && c->ldash && as->max_frag_duration && !(c->profile & MPD_PROFILE_DVB))
814 ✗ avio_printf(out, "\t\t\t<Resync dT=\"%"PRId64"\" type=\"0\"/>\n", as->max_frag_duration);
815 ✗ if (as->trick_idx >= 0)
816 ✗ avio_printf(out, "\t\t\t<EssentialProperty id=\"%d\" schemeIdUri=\"http://dashif.org/guidelines/trickmode\" value=\"%d\"/>\n", as->id, as->trick_idx);
817 ✗ role = av_dict_get(as->metadata, "role", NULL, 0);
818 ✗ if (role)
819 ✗ avio_printf(out, "\t\t\t<Role schemeIdUri=\"urn:mpeg:dash:role:2011\" value=\"%s\"/>\n", role->value);
820 ✗ if (as->descriptor)
821 ✗ avio_printf(out, "\t\t\t%s\n", as->descriptor);
822 ✗ for (i = 0; i < s->nb_streams; i++) {
823 ✗ AVStream *st = s->streams[i];
824 ✗ OutputStream *os = &c->streams[i];
825 ✗ char bandwidth_str[64] = {'\0'};
826
827 ✗ if (os->as_idx - 1 != as_index)
828 ✗ continue;
829
830 ✗ if (os->bit_rate > 0)
831 ✗ snprintf(bandwidth_str, sizeof(bandwidth_str), " bandwidth=\"%d\"", os->bit_rate);
832 ✗ else if (final) {
833 ✗ int average_bit_rate = os->pos * 8 * AV_TIME_BASE / c->total_duration;
834 ✗ snprintf(bandwidth_str, sizeof(bandwidth_str), " bandwidth=\"%d\"", average_bit_rate);
835 ✗ } else if (os->first_segment_bit_rate > 0)
836 ✗ snprintf(bandwidth_str, sizeof(bandwidth_str), " bandwidth=\"%d\"", os->first_segment_bit_rate);
837
838 ✗ if (as->media_type == AVMEDIA_TYPE_VIDEO) {
839 ✗ avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"video/%s\" codecs=\"%s\"%s width=\"%d\" height=\"%d\"",
840 ✗ i, os->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->width, s->streams[i]->codecpar->height);
841 ✗ if (st->codecpar->field_order == AV_FIELD_UNKNOWN)
842 ✗ avio_printf(out, " scanType=\"unknown\"");
843 ✗ else if (st->codecpar->field_order != AV_FIELD_PROGRESSIVE)
844 ✗ avio_printf(out, " scanType=\"interlaced\"");
845 ✗ avio_printf(out, " sar=\"%d:%d\"", os->sar.num, os->sar.den);
846 ✗ if (st->avg_frame_rate.num && av_cmp_q(as->min_frame_rate, as->max_frame_rate) < 0)
847 ✗ avio_printf(out, " frameRate=\"%d/%d\"", st->avg_frame_rate.num, st->avg_frame_rate.den);
848 ✗ if (as->trick_idx >= 0) {
849 ✗ AdaptationSet *tas = &c->as[as->trick_idx];
850 ✗ if (!as->ambiguous_frame_rate && !tas->ambiguous_frame_rate)
851 ✗ avio_printf(out, " maxPlayoutRate=\"%d\"", FFMAX((int)av_q2d(av_div_q(tas->min_frame_rate, as->min_frame_rate)), 1));
852 }
853 ✗ if (!os->coding_dependency)
854 ✗ avio_printf(out, " codingDependency=\"false\"");
855 ✗ avio_printf(out, ">\n");
856 } else {
857 ✗ avio_printf(out, "\t\t\t<Representation id=\"%d\" mimeType=\"audio/%s\" codecs=\"%s\"%s audioSamplingRate=\"%d\">\n",
858 ✗ i, os->format_name, os->codec_str, bandwidth_str, s->streams[i]->codecpar->sample_rate);
859 ✗ avio_printf(out, "\t\t\t\t<AudioChannelConfiguration schemeIdUri=\"urn:mpeg:dash:23003:3:audio_channel_configuration:2011\" value=\"%d\" />\n",
860 ✗ s->streams[i]->codecpar->ch_layout.nb_channels);
861 }
862 ✗ if (!final && c->write_prft && os->producer_reference_time_str[0]) {
863 ✗ avio_printf(out, "\t\t\t\t<ProducerReferenceTime id=\"%d\" inband=\"true\" type=\"%s\" wallClockTime=\"%s\" presentationTime=\"%"PRId64"\">\n",
864 ✗ i, os->producer_reference_time.flags ? "captured" : "encoder", os->producer_reference_time_str, c->presentation_time_offset);
865 ✗ avio_printf(out, "\t\t\t\t\t<UTCTiming schemeIdUri=\"urn:mpeg:dash:utc:http-xsdate:2014\" value=\"%s\"/>\n", c->utc_timing_url);
866 ✗ avio_printf(out, "\t\t\t\t</ProducerReferenceTime>\n");
867 }
868 ✗ if (!final && c->ldash && os->gop_size && os->frag_type != FRAG_TYPE_NONE && !(c->profile & MPD_PROFILE_DVB) &&
869 ✗ (os->frag_type != FRAG_TYPE_DURATION || os->frag_duration != os->seg_duration))
870 ✗ avio_printf(out, "\t\t\t\t<Resync dT=\"%"PRId64"\" type=\"1\"/>\n", os->gop_size);
871 ✗ output_segment_list(os, out, s, i, final);
872 ✗ avio_printf(out, "\t\t\t</Representation>\n");
873 }
874 ✗ avio_printf(out, "\t\t</AdaptationSet>\n");
875
876 ✗ return 0;
877 }
878
879 ✗ static int add_adaptation_set(AVFormatContext *s, AdaptationSet **as, enum AVMediaType type)
880 {
881 ✗ DASHContext *c = s->priv_data;
882 void *mem;
883
884 ✗ if (c->profile & MPD_PROFILE_DVB && (c->nb_as + 1) > 16) {
885 ✗ av_log(s, AV_LOG_ERROR, "DVB-DASH profile allows a max of 16 Adaptation Sets\n");
886 ✗ return AVERROR(EINVAL);
887 }
888 ✗ mem = av_realloc(c->as, sizeof(*c->as) * (c->nb_as + 1));
889 ✗ if (!mem)
890 ✗ return AVERROR(ENOMEM);
891 ✗ c->as = mem;
892 ✗ ++c->nb_as;
893
894 ✗ *as = &c->as[c->nb_as - 1];
895 ✗ memset(*as, 0, sizeof(**as));
896 ✗ (*as)->media_type = type;
897 ✗ (*as)->frag_type = -1;
898 ✗ (*as)->trick_idx = -1;
899
900 ✗ return 0;
901 }
902
903 ✗ static int adaptation_set_add_stream(AVFormatContext *s, int as_idx, int i)
904 {
905 ✗ DASHContext *c = s->priv_data;
906 ✗ AdaptationSet *as = &c->as[as_idx - 1];
907 ✗ OutputStream *os = &c->streams[i];
908
909 ✗ if (as->media_type != s->streams[i]->codecpar->codec_type) {
910 ✗ av_log(s, AV_LOG_ERROR, "Codec type of stream %d doesn't match AdaptationSet's media type\n", i);
911 ✗ return AVERROR(EINVAL);
912 ✗ } else if (os->as_idx) {
913 ✗ av_log(s, AV_LOG_ERROR, "Stream %d is already assigned to an AdaptationSet\n", i);
914 ✗ return AVERROR(EINVAL);
915 }
916 ✗ if (c->profile & MPD_PROFILE_DVB && (as->nb_streams + 1) > 16) {
917 ✗ av_log(s, AV_LOG_ERROR, "DVB-DASH profile allows a max of 16 Representations per Adaptation Set\n");
918 ✗ return AVERROR(EINVAL);
919 }
920 ✗ os->as_idx = as_idx;
921 ✗ ++as->nb_streams;
922
923 ✗ return 0;
924 }
925
926 ✗ static int parse_adaptation_sets(AVFormatContext *s)
927 {
928 ✗ DASHContext *c = s->priv_data;
929 ✗ const char *p = c->adaptation_sets;
930 enum { new_set, parse_default, parsing_streams, parse_seg_duration, parse_frag_duration } state;
931 AdaptationSet *as;
932 int i, n, ret;
933
934 // default: one AdaptationSet for each stream
935 ✗ if (!p) {
936 ✗ for (i = 0; i < s->nb_streams; i++) {
937 ✗ if ((ret = add_adaptation_set(s, &as, s->streams[i]->codecpar->codec_type)) < 0)
938 ✗ return ret;
939 ✗ as->id = i;
940
941 ✗ c->streams[i].as_idx = c->nb_as;
942 ✗ ++as->nb_streams;
943 }
944 ✗ goto end;
945 }
946
947 // syntax id=0,streams=0,1,2 id=1,streams=3,4 and so on
948 // option id=0,descriptor=descriptor_str,streams=0,1,2 and so on
949 // option id=0,seg_duration=2.5,frag_duration=0.5,streams=0,1,2
950 // id=1,trick_id=0,seg_duration=10,frag_type=none,streams=3 and so on
951 // descriptor is useful to the scheme defined by ISO/IEC 23009-1:2014/Amd.2:2015
952 // descriptor_str should be a self-closing xml tag.
953 // seg_duration and frag_duration have the same syntax as the global options of
954 // the same name, and the former have precedence over them if set.
955 ✗ state = new_set;
956 ✗ while (*p) {
957 ✗ if (*p == ' ') {
958 ✗ p++;
959 ✗ continue;
960 ✗ } else if (state == new_set && av_strstart(p, "id=", &p)) {
961 char id_str[10], *end_str;
962
963 ✗ n = strcspn(p, ",");
964 ✗ snprintf(id_str, sizeof(id_str), "%.*s", n, p);
965
966 ✗ i = strtol(id_str, &end_str, 10);
967 ✗ if (id_str == end_str || i < 0 || i > c->nb_as) {
968 ✗ av_log(s, AV_LOG_ERROR, "\"%s\" is not a valid value for an AdaptationSet id\n", id_str);
969 ✗ return AVERROR(EINVAL);
970 }
971
972 ✗ if ((ret = add_adaptation_set(s, &as, AVMEDIA_TYPE_UNKNOWN)) < 0)
973 ✗ return ret;
974 ✗ as->id = i;
975
976 ✗ p += n;
977 ✗ if (*p)
978 ✗ p++;
979 ✗ state = parse_default;
980 ✗ } else if (state != new_set && av_strstart(p, "seg_duration=", &p)) {
981 ✗ state = parse_seg_duration;
982 ✗ } else if (state != new_set && av_strstart(p, "frag_duration=", &p)) {
983 ✗ state = parse_frag_duration;
984 ✗ } else if (state == parse_seg_duration || state == parse_frag_duration) {
985 char str[32];
986 ✗ int64_t usecs = 0;
987
988 ✗ n = strcspn(p, ",");
989 ✗ snprintf(str, sizeof(str), "%.*s", n, p);
990 ✗ p += n;
991 ✗ if (*p)
992 ✗ p++;
993
994 ✗ ret = av_parse_time(&usecs, str, 1);
995 ✗ if (ret < 0) {
996 ✗ av_log(s, AV_LOG_ERROR, "Unable to parse option value \"%s\" as duration\n", str);
997 ✗ return ret;
998 }
999
1000 ✗ if (state == parse_seg_duration)
1001 ✗ as->seg_duration = usecs;
1002 else
1003 ✗ as->frag_duration = usecs;
1004 ✗ state = parse_default;
1005 ✗ } else if (state != new_set && av_strstart(p, "frag_type=", &p)) {
1006 char type_str[16];
1007
1008 ✗ n = strcspn(p, ",");
1009 ✗ snprintf(type_str, sizeof(type_str), "%.*s", n, p);
1010 ✗ p += n;
1011 ✗ if (*p)
1012 ✗ p++;
1013
1014 ✗ if (!strcmp(type_str, "duration"))
1015 ✗ as->frag_type = FRAG_TYPE_DURATION;
1016 ✗ else if (!strcmp(type_str, "pframes"))
1017 ✗ as->frag_type = FRAG_TYPE_PFRAMES;
1018 ✗ else if (!strcmp(type_str, "every_frame"))
1019 ✗ as->frag_type = FRAG_TYPE_EVERY_FRAME;
1020 ✗ else if (!strcmp(type_str, "none"))
1021 ✗ as->frag_type = FRAG_TYPE_NONE;
1022 else {
1023 ✗ av_log(s, AV_LOG_ERROR, "Unable to parse option value \"%s\" as fragment type\n", type_str);
1024 ✗ return ret;
1025 }
1026 ✗ state = parse_default;
1027 ✗ } else if (state != new_set && av_strstart(p, "descriptor=", &p)) {
1028 ✗ n = strcspn(p, ">") + 1; //followed by one comma, so plus 1
1029 ✗ if (n < strlen(p)) {
1030 ✗ as->descriptor = av_strndup(p, n);
1031 } else {
1032 ✗ av_log(s, AV_LOG_ERROR, "Parse error, descriptor string should be a self-closing xml tag\n");
1033 ✗ return AVERROR(EINVAL);
1034 }
1035 ✗ p += n;
1036 ✗ if (*p)
1037 ✗ p++;
1038 ✗ state = parse_default;
1039 ✗ } else if ((state != new_set) && av_strstart(p, "trick_id=", &p)) {
1040 char trick_id_str[10], *end_str;
1041
1042 ✗ n = strcspn(p, ",");
1043 ✗ snprintf(trick_id_str, sizeof(trick_id_str), "%.*s", n, p);
1044 ✗ p += n;
1045
1046 ✗ as->trick_idx = strtol(trick_id_str, &end_str, 10);
1047 ✗ if (trick_id_str == end_str || as->trick_idx < 0)
1048 ✗ return AVERROR(EINVAL);
1049
1050 ✗ if (*p)
1051 ✗ p++;
1052 ✗ state = parse_default;
1053 ✗ } else if ((state != new_set) && av_strstart(p, "streams=", &p)) { //descriptor and durations are optional
1054 ✗ state = parsing_streams;
1055 ✗ } else if (state == parsing_streams) {
1056 ✗ AdaptationSet *as = &c->as[c->nb_as - 1];
1057 char idx_str[8], *end_str;
1058
1059 ✗ n = strcspn(p, " ,");
1060 ✗ snprintf(idx_str, sizeof(idx_str), "%.*s", n, p);
1061 ✗ p += n;
1062
1063 // if value is "a" or "v", map all streams of that type
1064 ✗ if (as->media_type == AVMEDIA_TYPE_UNKNOWN && (idx_str[0] == 'v' || idx_str[0] == 'a')) {
1065 ✗ enum AVMediaType type = (idx_str[0] == 'v') ? AVMEDIA_TYPE_VIDEO : AVMEDIA_TYPE_AUDIO;
1066 ✗ av_log(s, AV_LOG_DEBUG, "Map all streams of type %s\n", idx_str);
1067
1068 ✗ for (i = 0; i < s->nb_streams; i++) {
1069 ✗ if (s->streams[i]->codecpar->codec_type != type)
1070 ✗ continue;
1071
1072 ✗ as->media_type = s->streams[i]->codecpar->codec_type;
1073
1074 ✗ if ((ret = adaptation_set_add_stream(s, c->nb_as, i)) < 0)
1075 ✗ return ret;
1076 }
1077 } else { // select single stream
1078 ✗ i = strtol(idx_str, &end_str, 10);
1079 ✗ if (idx_str == end_str || i < 0 || i >= s->nb_streams) {
1080 ✗ av_log(s, AV_LOG_ERROR, "Selected stream \"%s\" not found!\n", idx_str);
1081 ✗ return AVERROR(EINVAL);
1082 }
1083 ✗ av_log(s, AV_LOG_DEBUG, "Map stream %d\n", i);
1084
1085 ✗ if (as->media_type == AVMEDIA_TYPE_UNKNOWN) {
1086 ✗ as->media_type = s->streams[i]->codecpar->codec_type;
1087 }
1088
1089 ✗ if ((ret = adaptation_set_add_stream(s, c->nb_as, i)) < 0)
1090 ✗ return ret;
1091 }
1092
1093 ✗ if (*p == ' ')
1094 ✗ state = new_set;
1095 ✗ if (*p)
1096 ✗ p++;
1097 } else {
1098 ✗ return AVERROR(EINVAL);
1099 }
1100 }
1101
1102 ✗ end:
1103 // check for unassigned streams
1104 ✗ for (i = 0; i < s->nb_streams; i++) {
1105 ✗ OutputStream *os = &c->streams[i];
1106 ✗ if (!os->as_idx) {
1107 ✗ av_log(s, AV_LOG_ERROR, "Stream %d is not mapped to an AdaptationSet\n", i);
1108 ✗ return AVERROR(EINVAL);
1109 }
1110 }
1111
1112 // check references for trick mode AdaptationSet
1113 ✗ for (i = 0; i < c->nb_as; i++) {
1114 ✗ as = &c->as[i];
1115 ✗ if (as->trick_idx < 0)
1116 ✗ continue;
1117 ✗ for (n = 0; n < c->nb_as; n++) {
1118 ✗ if (c->as[n].id == as->trick_idx)
1119 ✗ break;
1120 }
1121 ✗ if (n >= c->nb_as) {
1122 ✗ av_log(s, AV_LOG_ERROR, "reference AdaptationSet id \"%d\" not found for trick mode AdaptationSet id \"%d\"\n", as->trick_idx, as->id);
1123 ✗ return AVERROR(EINVAL);
1124 }
1125 }
1126
1127 ✗ return 0;
1128 }
1129
1130 ✗ static int write_manifest(AVFormatContext *s, int final)
1131 {
1132 ✗ DASHContext *c = s->priv_data;
1133 AVIOContext *out;
1134 char temp_filename[1024];
1135 int ret, i;
1136 ✗ const char *proto = avio_find_protocol_name(s->url);
1137 ✗ int use_rename = proto && !strcmp(proto, "file");
1138 static unsigned int warned_non_file = 0;
1139 ✗ AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0);
1140 ✗ AVDictionary *opts = NULL;
1141
1142 ✗ if (!use_rename && !warned_non_file++)
1143 ✗ av_log(s, AV_LOG_ERROR, "Cannot use rename on non file protocol, this may lead to races and temporary partial files\n");
1144
1145 ✗ snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", s->url);
1146 ✗ set_http_options(&opts, c);
1147 ✗ ret = dashenc_io_open(s, &c->mpd_out, temp_filename, &opts);
1148 ✗ av_dict_free(&opts);
1149 ✗ if (ret < 0) {
1150 ✗ return handle_io_open_error(s, ret, temp_filename);
1151 }
1152 ✗ out = c->mpd_out;
1153 ✗ avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
1154 ✗ avio_printf(out, "<MPD xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"\n"
1155 "\txmlns=\"urn:mpeg:dash:schema:mpd:2011\"\n"
1156 "\txmlns:xlink=\"http://www.w3.org/1999/xlink\"\n"
1157 "\txsi:schemaLocation=\"urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd\"\n"
1158 "\tprofiles=\"");
1159 ✗ if (c->profile & MPD_PROFILE_DASH)
1160 ✗ avio_printf(out, "%s%s", "urn:mpeg:dash:profile:isoff-live:2011", c->profile & MPD_PROFILE_DVB ? "," : "\"\n");
1161 ✗ if (c->profile & MPD_PROFILE_DVB)
1162 ✗ avio_printf(out, "%s", "urn:dvb:dash:profile:dvb-dash:2014\"\n");
1163 ✗ avio_printf(out, "\ttype=\"%s\"\n",
1164 final ? "static" : "dynamic");
1165 ✗ if (final) {
1166 ✗ avio_printf(out, "\tmediaPresentationDuration=\"");
1167 ✗ write_time(out, c->total_duration);
1168 ✗ avio_printf(out, "\"\n");
1169 } else {
1170 ✗ int64_t update_period = c->last_duration / AV_TIME_BASE;
1171 char now_str[100];
1172 ✗ if (c->use_template && !c->use_timeline)
1173 ✗ update_period = 500;
1174 ✗ if (c->update_period)
1175 ✗ update_period = c->update_period;
1176 ✗ avio_printf(out, "\tminimumUpdatePeriod=\"PT%"PRId64"S\"\n", update_period);
1177 ✗ if (!c->ldash)
1178 ✗ avio_printf(out, "\tsuggestedPresentationDelay=\"PT%"PRId64"S\"\n", c->last_duration / AV_TIME_BASE);
1179 ✗ if (c->availability_start_time[0])
1180 ✗ avio_printf(out, "\tavailabilityStartTime=\"%s\"\n", c->availability_start_time);
1181 ✗ format_date(now_str, sizeof(now_str), av_gettime());
1182 ✗ if (now_str[0])
1183 ✗ avio_printf(out, "\tpublishTime=\"%s\"\n", now_str);
1184 ✗ if (c->window_size && c->use_template) {
1185 ✗ avio_printf(out, "\ttimeShiftBufferDepth=\"");
1186 ✗ write_time(out, c->last_duration * c->window_size);
1187 ✗ avio_printf(out, "\"\n");
1188 }
1189 }
1190 ✗ avio_printf(out, "\tmaxSegmentDuration=\"");
1191 ✗ write_time(out, c->max_segment_duration);
1192 ✗ avio_printf(out, "\"\n");
1193 ✗ avio_printf(out, "\tminBufferTime=\"");
1194 ✗ write_time(out, c->ldash && c->max_gop_size ? c->max_gop_size : c->last_duration * 2);
1195 ✗ avio_printf(out, "\">\n");
1196 ✗ avio_printf(out, "\t<ProgramInformation>\n");
1197 ✗ if (title) {
1198 ✗ char *escaped = xmlescape(title->value);
1199 ✗ avio_printf(out, "\t\t<Title>%s</Title>\n", escaped);
1200 ✗ av_free(escaped);
1201 }
1202 ✗ avio_printf(out, "\t</ProgramInformation>\n");
1203
1204 ✗ avio_printf(out, "\t<ServiceDescription id=\"0\">\n");
1205 ✗ if (!final && c->target_latency && c->target_latency_refid >= 0) {
1206 ✗ avio_printf(out, "\t\t<Latency target=\"%"PRId64"\"", c->target_latency / 1000);
1207 ✗ if (s->nb_streams > 1)
1208 ✗ avio_printf(out, " referenceId=\"%d\"", c->target_latency_refid);
1209 ✗ avio_printf(out, "/>\n");
1210 }
1211 ✗ if (av_cmp_q(c->min_playback_rate, (AVRational) {1, 1}) ||
1212 ✗ av_cmp_q(c->max_playback_rate, (AVRational) {1, 1}))
1213 ✗ avio_printf(out, "\t\t<PlaybackRate min=\"%.2f\" max=\"%.2f\"/>\n",
1214 av_q2d(c->min_playback_rate), av_q2d(c->max_playback_rate));
1215 ✗ avio_printf(out, "\t</ServiceDescription>\n");
1216
1217 ✗ if (c->window_size && s->nb_streams > 0 && c->streams[0].nb_segments > 0 && !c->use_template) {
1218 ✗ OutputStream *os = &c->streams[0];
1219 ✗ int start_index = FFMAX(os->nb_segments - c->window_size, 0);
1220 ✗ int64_t start_time = av_rescale_q(os->segments[start_index]->time, s->streams[0]->time_base, AV_TIME_BASE_Q);
1221 ✗ avio_printf(out, "\t<Period id=\"0\" start=\"");
1222 ✗ write_time(out, start_time);
1223 ✗ avio_printf(out, "\">\n");
1224 } else {
1225 ✗ avio_printf(out, "\t<Period id=\"0\" start=\"PT0.0S\">\n");
1226 }
1227
1228 ✗ for (i = 0; i < c->nb_as; i++) {
1229 ✗ if ((ret = write_adaptation_set(s, out, i, final)) < 0)
1230 ✗ return ret;
1231 }
1232 ✗ avio_printf(out, "\t</Period>\n");
1233
1234 ✗ if (c->utc_timing_url)
1235 ✗ avio_printf(out, "\t<UTCTiming schemeIdUri=\"urn:mpeg:dash:utc:http-xsdate:2014\" value=\"%s\"/>\n", c->utc_timing_url);
1236
1237 ✗ avio_printf(out, "</MPD>\n");
1238 ✗ avio_flush(out);
1239 ✗ dashenc_io_close(s, &c->mpd_out, temp_filename);
1240
1241 ✗ if (use_rename) {
1242 ✗ if ((ret = ff_rename(temp_filename, s->url, s)) < 0)
1243 ✗ return ret;
1244 }
1245
1246 ✗ if (c->hls_playlist) {
1247 char filename_hls[1024];
1248
1249 // Publish master playlist only the configured rate
1250 ✗ if (c->master_playlist_created && (!c->master_publish_rate ||
1251 ✗ c->streams[0].segment_index % c->master_publish_rate))
1252 ✗ return 0;
1253
1254 ✗ if (*c->dirname)
1255 ✗ snprintf(filename_hls, sizeof(filename_hls), "%s%s", c->dirname, c->hls_master_name);
1256 else
1257 ✗ snprintf(filename_hls, sizeof(filename_hls), "%s", c->hls_master_name);
1258
1259 ✗ snprintf(temp_filename, sizeof(temp_filename), use_rename ? "%s.tmp" : "%s", filename_hls);
1260
1261 ✗ set_http_options(&opts, c);
1262 ✗ ret = dashenc_io_open(s, &c->m3u8_out, temp_filename, &opts);
1263 ✗ av_dict_free(&opts);
1264 ✗ if (ret < 0) {
1265 ✗ return handle_io_open_error(s, ret, temp_filename);
1266 }
1267
1268 ✗ ff_hls_write_playlist_version(c->m3u8_out, 7);
1269
1270 ✗ if (c->has_video) {
1271 // treat audio streams as alternative renditions for video streams
1272 ✗ const char *audio_group = "A1";
1273 ✗ char audio_codec_str[128] = "\0";
1274 ✗ int is_default = 1;
1275 ✗ int max_audio_bitrate = 0;
1276
1277 ✗ for (i = 0; i < s->nb_streams; i++) {
1278 char playlist_file[64];
1279 ✗ AVStream *st = s->streams[i];
1280 ✗ OutputStream *os = &c->streams[i];
1281 ✗ if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO)
1282 ✗ continue;
1283 ✗ if (os->segment_type != SEGMENT_TYPE_MP4)
1284 ✗ continue;
1285 ✗ get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, i);
1286 ✗ ff_hls_write_audio_rendition(c->m3u8_out, audio_group,
1287 playlist_file, NULL, i, is_default,
1288 ✗ s->streams[i]->codecpar->ch_layout.nb_channels);
1289 ✗ max_audio_bitrate = FFMAX(st->codecpar->bit_rate +
1290 os->muxer_overhead, max_audio_bitrate);
1291 ✗ if (!av_strnstr(audio_codec_str, os->codec_str, sizeof(audio_codec_str))) {
1292 ✗ if (strlen(audio_codec_str))
1293 ✗ av_strlcat(audio_codec_str, ",", sizeof(audio_codec_str));
1294 ✗ av_strlcat(audio_codec_str, os->codec_str, sizeof(audio_codec_str));
1295 }
1296 ✗ is_default = 0;
1297 }
1298
1299 ✗ for (i = 0; i < s->nb_streams; i++) {
1300 char playlist_file[64];
1301 char codec_str[128];
1302 ✗ AVStream *st = s->streams[i];
1303 ✗ OutputStream *os = &c->streams[i];
1304 ✗ const char *agroup = NULL;
1305 ✗ int stream_bitrate = os->muxer_overhead;
1306 ✗ if (os->bit_rate > 0)
1307 ✗ stream_bitrate += os->bit_rate;
1308 ✗ else if (final)
1309 ✗ stream_bitrate += os->pos * 8 * AV_TIME_BASE / c->total_duration;
1310 ✗ else if (os->first_segment_bit_rate > 0)
1311 ✗ stream_bitrate += os->first_segment_bit_rate;
1312 ✗ if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
1313 ✗ continue;
1314 ✗ if (os->segment_type != SEGMENT_TYPE_MP4)
1315 ✗ continue;
1316 ✗ av_strlcpy(codec_str, os->codec_str, sizeof(codec_str));
1317 ✗ if (max_audio_bitrate) {
1318 ✗ agroup = audio_group;
1319 ✗ stream_bitrate += max_audio_bitrate;
1320 ✗ av_strlcat(codec_str, ",", sizeof(codec_str));
1321 ✗ av_strlcat(codec_str, audio_codec_str, sizeof(codec_str));
1322 }
1323 ✗ get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, i);
1324 ✗ ff_hls_write_stream_info(st, c->m3u8_out, stream_bitrate,
1325 playlist_file, agroup,
1326 codec_str, NULL, NULL);
1327 }
1328
1329 } else {
1330 // treat audio streams as separate renditions
1331
1332 ✗ for (i = 0; i < s->nb_streams; i++) {
1333 char playlist_file[64];
1334 char codec_str[128];
1335 ✗ AVStream *st = s->streams[i];
1336 ✗ OutputStream *os = &c->streams[i];
1337 ✗ int stream_bitrate = os->muxer_overhead;
1338 ✗ if (os->bit_rate > 0)
1339 ✗ stream_bitrate += os->bit_rate;
1340 ✗ else if (final)
1341 ✗ stream_bitrate += os->pos * 8 * AV_TIME_BASE / c->total_duration;
1342 ✗ else if (os->first_segment_bit_rate > 0)
1343 ✗ stream_bitrate += os->first_segment_bit_rate;
1344 ✗ if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO)
1345 ✗ continue;
1346 ✗ if (os->segment_type != SEGMENT_TYPE_MP4)
1347 ✗ continue;
1348 ✗ av_strlcpy(codec_str, os->codec_str, sizeof(codec_str));
1349 ✗ get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, i);
1350 ✗ ff_hls_write_stream_info(st, c->m3u8_out, stream_bitrate,
1351 playlist_file, NULL,
1352 codec_str, NULL, NULL);
1353 }
1354 }
1355
1356 ✗ dashenc_io_close(s, &c->m3u8_out, temp_filename);
1357 ✗ if (use_rename)
1358 ✗ if ((ret = ff_rename(temp_filename, filename_hls, s)) < 0)
1359 ✗ return ret;
1360 ✗ c->master_playlist_created = 1;
1361 }
1362
1363 ✗ return 0;
1364 }
1365
1366 ✗ static int dict_copy_entry(AVDictionary **dst, const AVDictionary *src, const char *key)
1367 {
1368 ✗ AVDictionaryEntry *entry = av_dict_get(src, key, NULL, 0);
1369 ✗ if (entry)
1370 ✗ av_dict_set(dst, key, entry->value, AV_DICT_DONT_OVERWRITE);
1371 ✗ return 0;
1372 }
1373
1374 ✗ static int dash_init(AVFormatContext *s)
1375 {
1376 ✗ DASHContext *c = s->priv_data;
1377 ✗ int ret = 0, i;
1378 char *ptr;
1379 char basename[1024];
1380
1381 ✗ c->nr_of_streams_to_flush = 0;
1382 ✗ if (c->single_file_name)
1383 ✗ c->single_file = 1;
1384 ✗ if (c->single_file)
1385 ✗ c->use_template = 0;
1386
1387 ✗ if (!c->profile) {
1388 ✗ av_log(s, AV_LOG_ERROR, "At least one profile must be enabled.\n");
1389 ✗ return AVERROR(EINVAL);
1390 }
1391 ✗ if (c->lhls && s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) {
1392 ✗ av_log(s, AV_LOG_ERROR,
1393 "LHLS is experimental, Please set -strict experimental in order to enable it.\n");
1394 ✗ return AVERROR_EXPERIMENTAL;
1395 }
1396
1397 ✗ if (c->lhls && !c->streaming) {
1398 ✗ av_log(s, AV_LOG_WARNING, "Enabling streaming as LHLS is enabled\n");
1399 ✗ c->streaming = 1;
1400 }
1401
1402 ✗ if (c->lhls && !c->hls_playlist) {
1403 ✗ av_log(s, AV_LOG_INFO, "Enabling hls_playlist as LHLS is enabled\n");
1404 ✗ c->hls_playlist = 1;
1405 }
1406
1407 ✗ if (c->ldash && !c->streaming) {
1408 ✗ av_log(s, AV_LOG_WARNING, "Enabling streaming as LDash is enabled\n");
1409 ✗ c->streaming = 1;
1410 }
1411
1412 ✗ if (c->target_latency && !c->streaming) {
1413 ✗ av_log(s, AV_LOG_WARNING, "Target latency option will be ignored as streaming is not enabled\n");
1414 ✗ c->target_latency = 0;
1415 }
1416
1417 ✗ if (c->global_sidx && !c->single_file) {
1418 ✗ av_log(s, AV_LOG_WARNING, "Global SIDX option will be ignored as single_file is not enabled\n");
1419 ✗ c->global_sidx = 0;
1420 }
1421
1422 ✗ if (c->global_sidx && c->streaming) {
1423 ✗ av_log(s, AV_LOG_WARNING, "Global SIDX option will be ignored as streaming is enabled\n");
1424 ✗ c->global_sidx = 0;
1425 }
1426 ✗ if (c->frag_type == FRAG_TYPE_NONE && c->streaming) {
1427 ✗ av_log(s, AV_LOG_VERBOSE, "Changing frag_type from none to every_frame as streaming is enabled\n");
1428 ✗ c->frag_type = FRAG_TYPE_EVERY_FRAME;
1429 }
1430
1431 ✗ if (c->write_prft < 0) {
1432 ✗ c->write_prft = c->ldash;
1433 ✗ if (c->ldash)
1434 ✗ av_log(s, AV_LOG_VERBOSE, "Enabling Producer Reference Time element for Low Latency mode\n");
1435 }
1436
1437 ✗ if (c->write_prft && !c->utc_timing_url) {
1438 ✗ av_log(s, AV_LOG_WARNING, "Producer Reference Time element option will be ignored as utc_timing_url is not set\n");
1439 ✗ c->write_prft = 0;
1440 }
1441
1442 ✗ if (c->write_prft && !c->streaming) {
1443 ✗ av_log(s, AV_LOG_WARNING, "Producer Reference Time element option will be ignored as streaming is not enabled\n");
1444 ✗ c->write_prft = 0;
1445 }
1446
1447 ✗ if (c->ldash && !c->write_prft) {
1448 ✗ av_log(s, AV_LOG_WARNING, "Low Latency mode enabled without Producer Reference Time element option! Resulting manifest may not be complaint\n");
1449 }
1450
1451 ✗ if (c->target_latency && !c->write_prft) {
1452 ✗ av_log(s, AV_LOG_WARNING, "Target latency option will be ignored as Producer Reference Time element will not be written\n");
1453 ✗ c->target_latency = 0;
1454 }
1455
1456 ✗ if (av_cmp_q(c->max_playback_rate, c->min_playback_rate) < 0) {
1457 ✗ av_log(s, AV_LOG_WARNING, "Minimum playback rate value is higher than the Maximum. Both will be ignored\n");
1458 ✗ c->min_playback_rate = c->max_playback_rate = (AVRational) {1, 1};
1459 }
1460
1461 ✗ av_strlcpy(c->dirname, s->url, sizeof(c->dirname));
1462 ✗ ptr = strrchr(c->dirname, '/');
1463 ✗ if (ptr) {
1464 ✗ av_strlcpy(basename, &ptr[1], sizeof(basename));
1465 ✗ ptr[1] = '\0';
1466 } else {
1467 ✗ c->dirname[0] = '\0';
1468 ✗ av_strlcpy(basename, s->url, sizeof(basename));
1469 }
1470
1471 ✗ ptr = strrchr(basename, '.');
1472 ✗ if (ptr)
1473 ✗ *ptr = '\0';
1474
1475 ✗ c->streams = av_mallocz(sizeof(*c->streams) * s->nb_streams);
1476 ✗ if (!c->streams)
1477 ✗ return AVERROR(ENOMEM);
1478
1479 ✗ if ((ret = parse_adaptation_sets(s)) < 0)
1480 ✗ return ret;
1481
1482 ✗ if ((ret = init_segment_types(s)) < 0)
1483 ✗ return ret;
1484
1485 ✗ for (i = 0; i < s->nb_streams; i++) {
1486 ✗ OutputStream *os = &c->streams[i];
1487 ✗ AdaptationSet *as = &c->as[os->as_idx - 1];
1488 AVFormatContext *ctx;
1489 AVStream *st;
1490 ✗ AVDictionary *opts = NULL;
1491 char filename[1024];
1492
1493 ✗ os->bit_rate = s->streams[i]->codecpar->bit_rate;
1494 ✗ if (!os->bit_rate) {
1495 ✗ int level = s->strict_std_compliance >= FF_COMPLIANCE_STRICT ?
1496 ✗ AV_LOG_ERROR : AV_LOG_WARNING;
1497 ✗ av_log(s, level, "No bit rate set for stream %d\n", i);
1498 ✗ if (s->strict_std_compliance >= FF_COMPLIANCE_STRICT)
1499 ✗ return AVERROR(EINVAL);
1500 }
1501
1502 // copy AdaptationSet language and role from stream metadata
1503 ✗ dict_copy_entry(&as->metadata, s->streams[i]->metadata, "language");
1504 ✗ dict_copy_entry(&as->metadata, s->streams[i]->metadata, "role");
1505
1506 ✗ if (c->init_seg_name) {
1507 ✗ os->init_seg_name = av_strireplace(c->init_seg_name, "$ext$", os->extension_name);
1508 ✗ if (!os->init_seg_name)
1509 ✗ return AVERROR(ENOMEM);
1510 }
1511 ✗ if (c->media_seg_name) {
1512 ✗ os->media_seg_name = av_strireplace(c->media_seg_name, "$ext$", os->extension_name);
1513 ✗ if (!os->media_seg_name)
1514 ✗ return AVERROR(ENOMEM);
1515 }
1516 ✗ if (c->single_file_name) {
1517 ✗ os->single_file_name = av_strireplace(c->single_file_name, "$ext$", os->extension_name);
1518 ✗ if (!os->single_file_name)
1519 ✗ return AVERROR(ENOMEM);
1520 }
1521
1522 ✗ if (os->segment_type == SEGMENT_TYPE_WEBM) {
1523 ✗ if ((!c->single_file && !av_match_ext(os->init_seg_name, os->format_name)) ||
1524 ✗ (!c->single_file && !av_match_ext(os->media_seg_name, os->format_name)) ||
1525 ✗ ( c->single_file && !av_match_ext(os->single_file_name, os->format_name))) {
1526 ✗ av_log(s, AV_LOG_WARNING,
1527 "One or many segment file names doesn't end with .webm. "
1528 "Override -init_seg_name and/or -media_seg_name and/or "
1529 "-single_file_name to end with the extension .webm\n");
1530 }
1531 ✗ if (c->streaming) {
1532 // Streaming not supported as matroskaenc buffers internally before writing the output
1533 ✗ av_log(s, AV_LOG_WARNING, "One or more streams in WebM output format. Streaming option will be ignored\n");
1534 ✗ c->streaming = 0;
1535 }
1536 }
1537
1538 ✗ os->ctx = ctx = avformat_alloc_context();
1539 ✗ if (!ctx)
1540 ✗ return AVERROR(ENOMEM);
1541
1542 ✗ ctx->oformat = av_guess_format(os->format_name, NULL, NULL);
1543 ✗ if (!ctx->oformat)
1544 ✗ return AVERROR_MUXER_NOT_FOUND;
1545 ✗ ctx->interrupt_callback = s->interrupt_callback;
1546 ✗ ctx->opaque = s->opaque;
1547 #if FF_API_AVFORMAT_IO_CLOSE
1548 FF_DISABLE_DEPRECATION_WARNINGS
1549 ✗ ctx->io_close = s->io_close;
1550 FF_ENABLE_DEPRECATION_WARNINGS
1551 #endif
1552 ✗ ctx->io_close2 = s->io_close2;
1553 ✗ ctx->io_open = s->io_open;
1554 ✗ ctx->strict_std_compliance = s->strict_std_compliance;
1555
1556 ✗ if (!(st = avformat_new_stream(ctx, NULL)))
1557 ✗ return AVERROR(ENOMEM);
1558 ✗ avcodec_parameters_copy(st->codecpar, s->streams[i]->codecpar);
1559 ✗ st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
1560 ✗ st->time_base = s->streams[i]->time_base;
1561 ✗ st->avg_frame_rate = s->streams[i]->avg_frame_rate;
1562 ✗ ctx->avoid_negative_ts = s->avoid_negative_ts;
1563 ✗ ctx->flags = s->flags;
1564
1565 ✗ os->parser = av_parser_init(st->codecpar->codec_id);
1566 ✗ if (os->parser) {
1567 ✗ os->parser_avctx = avcodec_alloc_context3(NULL);
1568 ✗ if (!os->parser_avctx)
1569 ✗ return AVERROR(ENOMEM);
1570 ✗ ret = avcodec_parameters_to_context(os->parser_avctx, st->codecpar);
1571 ✗ if (ret < 0)
1572 ✗ return ret;
1573 // We only want to parse frame headers
1574 ✗ os->parser->flags |= PARSER_FLAG_COMPLETE_FRAMES;
1575 }
1576
1577 ✗ if (c->single_file) {
1578 ✗ if (os->single_file_name)
1579 ✗ ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), os->single_file_name, i, 0, os->bit_rate, 0);
1580 else
1581 ✗ snprintf(os->initfile, sizeof(os->initfile), "%s-stream%d.%s", basename, i, os->format_name);
1582 } else {
1583 ✗ ff_dash_fill_tmpl_params(os->initfile, sizeof(os->initfile), os->init_seg_name, i, 0, os->bit_rate, 0);
1584 }
1585 ✗ snprintf(filename, sizeof(filename), "%s%s", c->dirname, os->initfile);
1586 ✗ set_http_options(&opts, c);
1587 ✗ if (!c->single_file) {
1588 ✗ if ((ret = avio_open_dyn_buf(&ctx->pb)) < 0)
1589 ✗ return ret;
1590 ✗ ret = s->io_open(s, &os->out, filename, AVIO_FLAG_WRITE, &opts);
1591 } else {
1592 ✗ ctx->url = av_strdup(filename);
1593 ✗ ret = avio_open2(&ctx->pb, filename, AVIO_FLAG_WRITE, NULL, &opts);
1594 }
1595 ✗ av_dict_free(&opts);
1596 ✗ if (ret < 0)
1597 ✗ return ret;
1598 ✗ os->init_start_pos = 0;
1599
1600 ✗ av_dict_copy(&opts, c->format_options, 0);
1601 ✗ if (!as->seg_duration)
1602 ✗ as->seg_duration = c->seg_duration;
1603 ✗ if (!as->frag_duration)
1604 ✗ as->frag_duration = c->frag_duration;
1605 ✗ if (as->frag_type < 0)
1606 ✗ as->frag_type = c->frag_type;
1607 ✗ os->seg_duration = as->seg_duration;
1608 ✗ os->frag_duration = as->frag_duration;
1609 ✗ os->frag_type = as->frag_type;
1610
1611 ✗ c->max_segment_duration = FFMAX(c->max_segment_duration, as->seg_duration);
1612
1613 ✗ if (c->profile & MPD_PROFILE_DVB && (os->seg_duration > 15000000 || os->seg_duration < 960000)) {
1614 ✗ av_log(s, AV_LOG_ERROR, "Segment duration %"PRId64" is outside the allowed range for DVB-DASH profile\n", os->seg_duration);
1615 ✗ return AVERROR(EINVAL);
1616 }
1617
1618 ✗ if (os->frag_type == FRAG_TYPE_DURATION && !os->frag_duration) {
1619 ✗ av_log(s, AV_LOG_WARNING, "frag_type set to duration for stream %d but no frag_duration set\n", i);
1620 ✗ os->frag_type = c->streaming ? FRAG_TYPE_EVERY_FRAME : FRAG_TYPE_NONE;
1621 }
1622 ✗ if (os->frag_type == FRAG_TYPE_DURATION && os->frag_duration > os->seg_duration) {
1623 ✗ av_log(s, AV_LOG_ERROR, "Fragment duration %"PRId64" is longer than Segment duration %"PRId64"\n", os->frag_duration, os->seg_duration);
1624 ✗ return AVERROR(EINVAL);
1625 }
1626 ✗ if (os->frag_type == FRAG_TYPE_PFRAMES && (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO || !os->parser)) {
1627 ✗ if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !os->parser)
1628 ✗ av_log(s, AV_LOG_WARNING, "frag_type set to P-Frame reordering, but no parser found for stream %d\n", i);
1629 ✗ os->frag_type = c->streaming ? FRAG_TYPE_EVERY_FRAME : FRAG_TYPE_NONE;
1630 }
1631 ✗ if (os->frag_type != FRAG_TYPE_PFRAMES && as->trick_idx < 0)
1632 // Set this now if a parser isn't used
1633 ✗ os->coding_dependency = 1;
1634
1635 ✗ if (os->segment_type == SEGMENT_TYPE_MP4) {
1636 ✗ if (c->streaming)
1637 // skip_sidx : Reduce bitrate overhead
1638 // skip_trailer : Avoids growing memory usage with time
1639 ✗ av_dict_set(&opts, "movflags", "+dash+delay_moov+skip_sidx+skip_trailer", AV_DICT_APPEND);
1640 else {
1641 ✗ if (c->global_sidx)
1642 ✗ av_dict_set(&opts, "movflags", "+dash+delay_moov+global_sidx+skip_trailer", AV_DICT_APPEND);
1643 else
1644 ✗ av_dict_set(&opts, "movflags", "+dash+delay_moov+skip_trailer", AV_DICT_APPEND);
1645 }
1646 ✗ if (os->frag_type == FRAG_TYPE_EVERY_FRAME)
1647 ✗ av_dict_set(&opts, "movflags", "+frag_every_frame", AV_DICT_APPEND);
1648 else
1649 ✗ av_dict_set(&opts, "movflags", "+frag_custom", AV_DICT_APPEND);
1650 ✗ if (os->frag_type == FRAG_TYPE_DURATION)
1651 ✗ av_dict_set_int(&opts, "frag_duration", os->frag_duration, 0);
1652 ✗ if (c->write_prft)
1653 ✗ av_dict_set(&opts, "write_prft", "wallclock", 0);
1654 } else {
1655 ✗ av_dict_set_int(&opts, "cluster_time_limit", c->seg_duration / 1000, 0);
1656 ✗ av_dict_set_int(&opts, "cluster_size_limit", 5 * 1024 * 1024, 0); // set a large cluster size limit
1657 ✗ av_dict_set_int(&opts, "dash", 1, 0);
1658 ✗ av_dict_set_int(&opts, "dash_track_number", i + 1, 0);
1659 ✗ av_dict_set_int(&opts, "live", 1, 0);
1660 }
1661 ✗ ret = avformat_init_output(ctx, &opts);
1662 ✗ av_dict_free(&opts);
1663 ✗ if (ret < 0)
1664 ✗ return ret;
1665 ✗ os->ctx_inited = 1;
1666 ✗ avio_flush(ctx->pb);
1667
1668 ✗ av_log(s, AV_LOG_VERBOSE, "Representation %d init segment will be written to: %s\n", i, filename);
1669
1670 ✗ s->streams[i]->time_base = st->time_base;
1671 // If the muxer wants to shift timestamps, request to have them shifted
1672 // already before being handed to this muxer, so we don't have mismatches
1673 // between the MPD and the actual segments.
1674 ✗ s->avoid_negative_ts = ctx->avoid_negative_ts;
1675 ✗ if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
1676 ✗ AVRational avg_frame_rate = s->streams[i]->avg_frame_rate;
1677 AVRational par;
1678 ✗ if (avg_frame_rate.num > 0) {
1679 ✗ if (av_cmp_q(avg_frame_rate, as->min_frame_rate) < 0)
1680 ✗ as->min_frame_rate = avg_frame_rate;
1681 ✗ if (av_cmp_q(as->max_frame_rate, avg_frame_rate) < 0)
1682 ✗ as->max_frame_rate = avg_frame_rate;
1683 } else {
1684 ✗ as->ambiguous_frame_rate = 1;
1685 }
1686
1687 ✗ if (st->codecpar->width > as->max_width)
1688 ✗ as->max_width = st->codecpar->width;
1689 ✗ if (st->codecpar->height > as->max_height)
1690 ✗ as->max_height = st->codecpar->height;
1691
1692 ✗ if (st->sample_aspect_ratio.num)
1693 ✗ os->sar = st->sample_aspect_ratio;
1694 else
1695 ✗ os->sar = (AVRational){1,1};
1696 ✗ av_reduce(&par.num, &par.den,
1697 ✗ st->codecpar->width * (int64_t)os->sar.num,
1698 ✗ st->codecpar->height * (int64_t)os->sar.den,
1699 1024 * 1024);
1700
1701 ✗ if (as->par.num && av_cmp_q(par, as->par)) {
1702 ✗ av_log(s, AV_LOG_ERROR, "Conflicting stream aspect ratios values in Adaptation Set %d. Please ensure all adaptation sets have the same aspect ratio\n", os->as_idx);
1703 ✗ return AVERROR(EINVAL);
1704 }
1705 ✗ as->par = par;
1706
1707 ✗ c->has_video = 1;
1708 }
1709
1710 ✗ set_codec_str(s, st->codecpar, &st->avg_frame_rate, os->codec_str,
1711 sizeof(os->codec_str));
1712 ✗ os->first_pts = AV_NOPTS_VALUE;
1713 ✗ os->max_pts = AV_NOPTS_VALUE;
1714 ✗ os->last_dts = AV_NOPTS_VALUE;
1715 ✗ os->segment_index = 1;
1716
1717 ✗ if (s->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
1718 ✗ c->nr_of_streams_to_flush++;
1719 }
1720
1721 ✗ if (!c->has_video && c->seg_duration <= 0) {
1722 ✗ av_log(s, AV_LOG_WARNING, "no video stream and no seg duration set\n");
1723 ✗ return AVERROR(EINVAL);
1724 }
1725 ✗ if (!c->has_video && c->frag_type == FRAG_TYPE_PFRAMES)
1726 ✗ av_log(s, AV_LOG_WARNING, "no video stream and P-frame fragmentation set\n");
1727
1728 ✗ c->nr_of_streams_flushed = 0;
1729 ✗ c->target_latency_refid = -1;
1730
1731 ✗ return 0;
1732 }
1733
1734 ✗ static int dash_write_header(AVFormatContext *s)
1735 {
1736 ✗ DASHContext *c = s->priv_data;
1737 int i, ret;
1738 ✗ for (i = 0; i < s->nb_streams; i++) {
1739 ✗ OutputStream *os = &c->streams[i];
1740 ✗ if ((ret = avformat_write_header(os->ctx, NULL)) < 0)
1741 ✗ return ret;
1742
1743 // Flush init segment
1744 // Only for WebM segment, since for mp4 delay_moov is set and
1745 // the init segment is thus flushed after the first packets.
1746 ✗ if (os->segment_type == SEGMENT_TYPE_WEBM &&
1747 ✗ (ret = flush_init_segment(s, os)) < 0)
1748 ✗ return ret;
1749 }
1750 ✗ return ret;
1751 }
1752
1753 ✗ static int add_segment(OutputStream *os, const char *file,
1754 int64_t time, int64_t duration,
1755 int64_t start_pos, int64_t range_length,
1756 int64_t index_length, int next_exp_index)
1757 {
1758 int err;
1759 Segment *seg;
1760 ✗ if (os->nb_segments >= os->segments_size) {
1761 ✗ os->segments_size = (os->segments_size + 1) * 2;
1762 ✗ if ((err = av_reallocp_array(&os->segments, sizeof(*os->segments),
1763 ✗ os->segments_size)) < 0) {
1764 ✗ os->segments_size = 0;
1765 ✗ os->nb_segments = 0;
1766 ✗ return err;
1767 }
1768 }
1769 ✗ seg = av_mallocz(sizeof(*seg));
1770 ✗ if (!seg)
1771 ✗ return AVERROR(ENOMEM);
1772 ✗ av_strlcpy(seg->file, file, sizeof(seg->file));
1773 ✗ seg->time = time;
1774 ✗ seg->duration = duration;
1775 ✗ if (seg->time < 0) { // If pts<0, it is expected to be cut away with an edit list
1776 ✗ seg->duration += seg->time;
1777 ✗ seg->time = 0;
1778 }
1779 ✗ seg->start_pos = start_pos;
1780 ✗ seg->range_length = range_length;
1781 ✗ seg->index_length = index_length;
1782 ✗ os->segments[os->nb_segments++] = seg;
1783 ✗ os->segment_index++;
1784 //correcting the segment index if it has fallen behind the expected value
1785 ✗ if (os->segment_index < next_exp_index) {
1786 ✗ av_log(NULL, AV_LOG_WARNING, "Correcting the segment index after file %s: current=%d corrected=%d\n",
1787 file, os->segment_index, next_exp_index);
1788 ✗ os->segment_index = next_exp_index;
1789 }
1790 ✗ return 0;
1791 }
1792
1793 ✗ static void write_styp(AVIOContext *pb)
1794 {
1795 ✗ avio_wb32(pb, 24);
1796 ✗ ffio_wfourcc(pb, "styp");
1797 ✗ ffio_wfourcc(pb, "msdh");
1798 ✗ avio_wb32(pb, 0); /* minor */
1799 ✗ ffio_wfourcc(pb, "msdh");
1800 ✗ ffio_wfourcc(pb, "msix");
1801 ✗ }
1802
1803 ✗ static void find_index_range(AVFormatContext *s, const char *full_path,
1804 int64_t pos, int *index_length)
1805 {
1806 uint8_t buf[8];
1807 AVIOContext *pb;
1808 int ret;
1809
1810 ✗ ret = s->io_open(s, &pb, full_path, AVIO_FLAG_READ, NULL);
1811 ✗ if (ret < 0)
1812 ✗ return;
1813 ✗ if (avio_seek(pb, pos, SEEK_SET) != pos) {
1814 ✗ ff_format_io_close(s, &pb);
1815 ✗ return;
1816 }
1817 ✗ ret = avio_read(pb, buf, 8);
1818 ✗ ff_format_io_close(s, &pb);
1819 ✗ if (ret < 8)
1820 ✗ return;
1821 ✗ if (AV_RL32(&buf[4]) != MKTAG('s', 'i', 'd', 'x'))
1822 ✗ return;
1823 ✗ *index_length = AV_RB32(&buf[0]);
1824 }
1825
1826 ✗ static int update_stream_extradata(AVFormatContext *s, OutputStream *os,
1827 AVPacket *pkt, AVRational *frame_rate)
1828 {
1829 ✗ AVCodecParameters *par = os->ctx->streams[0]->codecpar;
1830 uint8_t *extradata;
1831 size_t extradata_size;
1832 int ret;
1833
1834 ✗ if (par->extradata_size)
1835 ✗ return 0;
1836
1837 ✗ extradata = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &extradata_size);
1838 ✗ if (!extradata_size)
1839 ✗ return 0;
1840
1841 ✗ ret = ff_alloc_extradata(par, extradata_size);
1842 ✗ if (ret < 0)
1843 ✗ return ret;
1844
1845 ✗ memcpy(par->extradata, extradata, extradata_size);
1846
1847 ✗ set_codec_str(s, par, frame_rate, os->codec_str, sizeof(os->codec_str));
1848
1849 ✗ return 0;
1850 }
1851
1852 ✗ static void dashenc_delete_file(AVFormatContext *s, char *filename) {
1853 ✗ DASHContext *c = s->priv_data;
1854 ✗ int http_base_proto = ff_is_http_proto(filename);
1855
1856 ✗ if (http_base_proto) {
1857 ✗ AVDictionary *http_opts = NULL;
1858
1859 ✗ set_http_options(&http_opts, c);
1860 ✗ av_dict_set(&http_opts, "method", "DELETE", 0);
1861
1862 ✗ if (dashenc_io_open(s, &c->http_delete, filename, &http_opts) < 0) {
1863 ✗ av_log(s, AV_LOG_ERROR, "failed to delete %s\n", filename);
1864 }
1865 ✗ av_dict_free(&http_opts);
1866
1867 //Nothing to write
1868 ✗ dashenc_io_close(s, &c->http_delete, filename);
1869 } else {
1870 ✗ int res = ffurl_delete(filename);
1871 ✗ if (res < 0) {
1872 char errbuf[AV_ERROR_MAX_STRING_SIZE];
1873 ✗ av_strerror(res, errbuf, sizeof(errbuf));
1874 ✗ av_log(s, (res == AVERROR(ENOENT) ? AV_LOG_WARNING : AV_LOG_ERROR), "failed to delete %s: %s\n", filename, errbuf);
1875 }
1876 }
1877 ✗ }
1878
1879 ✗ static int dashenc_delete_segment_file(AVFormatContext *s, const char* file)
1880 {
1881 ✗ DASHContext *c = s->priv_data;
1882 AVBPrint buf;
1883
1884 ✗ av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
1885
1886 ✗ av_bprintf(&buf, "%s%s", c->dirname, file);
1887 ✗ if (!av_bprint_is_complete(&buf)) {
1888 ✗ av_bprint_finalize(&buf, NULL);
1889 ✗ av_log(s, AV_LOG_WARNING, "Out of memory for filename\n");
1890 ✗ return AVERROR(ENOMEM);
1891 }
1892
1893 ✗ dashenc_delete_file(s, buf.str);
1894
1895 ✗ av_bprint_finalize(&buf, NULL);
1896 ✗ return 0;
1897 }
1898
1899 ✗ static inline void dashenc_delete_media_segments(AVFormatContext *s, OutputStream *os, int remove_count)
1900 {
1901 ✗ for (int i = 0; i < remove_count; ++i) {
1902 ✗ dashenc_delete_segment_file(s, os->segments[i]->file);
1903
1904 // Delete the segment regardless of whether the file was successfully deleted
1905 ✗ av_free(os->segments[i]);
1906 }
1907
1908 ✗ os->nb_segments -= remove_count;
1909 ✗ memmove(os->segments, os->segments + remove_count, os->nb_segments * sizeof(*os->segments));
1910 ✗ }
1911
1912 ✗ static int dash_flush(AVFormatContext *s, int final, int stream)
1913 {
1914 ✗ DASHContext *c = s->priv_data;
1915 ✗ int i, ret = 0;
1916
1917 ✗ const char *proto = avio_find_protocol_name(s->url);
1918 ✗ int use_rename = proto && !strcmp(proto, "file");
1919
1920 ✗ int cur_flush_segment_index = 0, next_exp_index = -1;
1921 ✗ if (stream >= 0) {
1922 ✗ cur_flush_segment_index = c->streams[stream].segment_index;
1923
1924 //finding the next segment's expected index, based on the current pts value
1925 ✗ if (c->use_template && !c->use_timeline && c->index_correction &&
1926 ✗ c->streams[stream].last_pts != AV_NOPTS_VALUE &&
1927 ✗ c->streams[stream].first_pts != AV_NOPTS_VALUE) {
1928 ✗ int64_t pts_diff = av_rescale_q(c->streams[stream].last_pts -
1929 ✗ c->streams[stream].first_pts,
1930 ✗ s->streams[stream]->time_base,
1931 ✗ AV_TIME_BASE_Q);
1932 ✗ next_exp_index = (pts_diff / c->streams[stream].seg_duration) + 1;
1933 }
1934 }
1935
1936 ✗ for (i = 0; i < s->nb_streams; i++) {
1937 ✗ OutputStream *os = &c->streams[i];
1938 ✗ AVStream *st = s->streams[i];
1939 ✗ int range_length, index_length = 0;
1940 int64_t duration;
1941
1942 ✗ if (!os->packets_written)
1943 ✗ continue;
1944
1945 // Flush the single stream that got a keyframe right now.
1946 // Flush all audio streams as well, in sync with video keyframes,
1947 // but not the other video streams.
1948 ✗ if (stream >= 0 && i != stream) {
1949 ✗ if (s->streams[stream]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO &&
1950 ✗ s->streams[i]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
1951 ✗ continue;
1952 ✗ if (s->streams[i]->codecpar->codec_type != AVMEDIA_TYPE_AUDIO)
1953 ✗ continue;
1954 // Make sure we don't flush audio streams multiple times, when
1955 // all video streams are flushed one at a time.
1956 ✗ if (c->has_video && os->segment_index > cur_flush_segment_index)
1957 ✗ continue;
1958 }
1959
1960 ✗ if (c->single_file)
1961 ✗ snprintf(os->full_path, sizeof(os->full_path), "%s%s", c->dirname, os->initfile);
1962
1963 ✗ ret = flush_dynbuf(c, os, &range_length);
1964 ✗ if (ret < 0)
1965 ✗ break;
1966 ✗ os->packets_written = 0;
1967
1968 ✗ if (c->single_file) {
1969 ✗ find_index_range(s, os->full_path, os->pos, &index_length);
1970 } else {
1971 ✗ dashenc_io_close(s, &os->out, os->temp_path);
1972
1973 ✗ if (use_rename) {
1974 ✗ ret = ff_rename(os->temp_path, os->full_path, os->ctx);
1975 ✗ if (ret < 0)
1976 ✗ break;
1977 }
1978 }
1979
1980 ✗ duration = av_rescale_q(os->max_pts - os->start_pts, st->time_base, AV_TIME_BASE_Q);
1981 ✗ os->last_duration = FFMAX(os->last_duration, duration);
1982
1983 ✗ if (!os->muxer_overhead && os->max_pts > os->start_pts)
1984 ✗ os->muxer_overhead = ((int64_t) (range_length - os->total_pkt_size) *
1985 ✗ 8 * AV_TIME_BASE) / duration;
1986 ✗ os->total_pkt_size = 0;
1987 ✗ os->total_pkt_duration = 0;
1988
1989 ✗ if (!os->bit_rate && !os->first_segment_bit_rate) {
1990 ✗ os->first_segment_bit_rate = (int64_t) range_length * 8 * AV_TIME_BASE / duration;
1991 }
1992 ✗ add_segment(os, os->filename, os->start_pts, os->max_pts - os->start_pts, os->pos, range_length, index_length, next_exp_index);
1993 ✗ av_log(s, AV_LOG_VERBOSE, "Representation %d media segment %d written to: %s\n", i, os->segment_index, os->full_path);
1994
1995 ✗ os->pos += range_length;
1996 }
1997
1998 ✗ if (c->window_size) {
1999 ✗ for (i = 0; i < s->nb_streams; i++) {
2000 ✗ OutputStream *os = &c->streams[i];
2001 ✗ int remove_count = os->nb_segments - c->window_size - c->extra_window_size;
2002 ✗ if (remove_count > 0)
2003 ✗ dashenc_delete_media_segments(s, os, remove_count);
2004 }
2005 }
2006
2007 ✗ if (final) {
2008 ✗ for (i = 0; i < s->nb_streams; i++) {
2009 ✗ OutputStream *os = &c->streams[i];
2010 ✗ if (os->ctx && os->ctx_inited) {
2011 ✗ int64_t file_size = avio_tell(os->ctx->pb);
2012 ✗ av_write_trailer(os->ctx);
2013 ✗ if (c->global_sidx) {
2014 int j, start_index, start_number;
2015 ✗ int64_t sidx_size = avio_tell(os->ctx->pb) - file_size;
2016 ✗ get_start_index_number(os, c, &start_index, &start_number);
2017 ✗ if (start_index >= os->nb_segments ||
2018 ✗ os->segment_type != SEGMENT_TYPE_MP4)
2019 ✗ continue;
2020 ✗ os->init_range_length += sidx_size;
2021 ✗ for (j = start_index; j < os->nb_segments; j++) {
2022 ✗ Segment *seg = os->segments[j];
2023 ✗ seg->start_pos += sidx_size;
2024 }
2025 }
2026
2027 }
2028 }
2029 }
2030 ✗ if (ret >= 0) {
2031 ✗ if (c->has_video && !final) {
2032 ✗ c->nr_of_streams_flushed++;
2033 ✗ if (c->nr_of_streams_flushed != c->nr_of_streams_to_flush)
2034 ✗ return ret;
2035
2036 ✗ c->nr_of_streams_flushed = 0;
2037 }
2038 // In streaming mode the manifest is written at the beginning
2039 // of the segment instead
2040 ✗ if (!c->streaming || final)
2041 ✗ ret = write_manifest(s, final);
2042 }
2043 ✗ return ret;
2044 }
2045
2046 ✗ static int dash_parse_prft(DASHContext *c, AVPacket *pkt)
2047 {
2048 ✗ OutputStream *os = &c->streams[pkt->stream_index];
2049 AVProducerReferenceTime *prft;
2050 size_t side_data_size;
2051
2052 ✗ prft = (AVProducerReferenceTime *)av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
2053 ✗ if (!prft || side_data_size != sizeof(AVProducerReferenceTime) || (prft->flags && prft->flags != 24)) {
2054 // No encoder generated or user provided capture time AVProducerReferenceTime side data. Instead
2055 // of letting the mov muxer generate one, do it here so we can also use it for the manifest.
2056 ✗ prft = (AVProducerReferenceTime *)av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT,
2057 sizeof(AVProducerReferenceTime));
2058 ✗ if (!prft)
2059 ✗ return AVERROR(ENOMEM);
2060 ✗ prft->wallclock = av_gettime();
2061 ✗ prft->flags = 24;
2062 }
2063 ✗ if (os->first_pts == AV_NOPTS_VALUE) {
2064 ✗ os->producer_reference_time = *prft;
2065 ✗ if (c->target_latency_refid < 0)
2066 ✗ c->target_latency_refid = pkt->stream_index;
2067 }
2068
2069 ✗ return 0;
2070 }
2071
2072 ✗ static int dash_write_packet(AVFormatContext *s, AVPacket *pkt)
2073 {
2074 ✗ DASHContext *c = s->priv_data;
2075 ✗ AVStream *st = s->streams[pkt->stream_index];
2076 ✗ OutputStream *os = &c->streams[pkt->stream_index];
2077 ✗ AdaptationSet *as = &c->as[os->as_idx - 1];
2078 int64_t seg_end_duration, elapsed_duration;
2079 int ret;
2080
2081 ✗ ret = update_stream_extradata(s, os, pkt, &st->avg_frame_rate);
2082 ✗ if (ret < 0)
2083 ✗ return ret;
2084
2085 // Fill in a heuristic guess of the packet duration, if none is available.
2086 // The mp4 muxer will do something similar (for the last packet in a fragment)
2087 // if nothing is set (setting it for the other packets doesn't hurt).
2088 // By setting a nonzero duration here, we can be sure that the mp4 muxer won't
2089 // invoke its heuristic (this doesn't have to be identical to that algorithm),
2090 // so that we know the exact timestamps of fragments.
2091 ✗ if (!pkt->duration && os->last_dts != AV_NOPTS_VALUE)
2092 ✗ pkt->duration = pkt->dts - os->last_dts;
2093 ✗ os->last_dts = pkt->dts;
2094
2095 // If forcing the stream to start at 0, the mp4 muxer will set the start
2096 // timestamps to 0. Do the same here, to avoid mismatches in duration/timestamps.
2097 ✗ if (os->first_pts == AV_NOPTS_VALUE &&
2098 ✗ s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) {
2099 ✗ pkt->pts -= pkt->dts;
2100 ✗ pkt->dts = 0;
2101 }
2102
2103 ✗ if (c->write_prft) {
2104 ✗ ret = dash_parse_prft(c, pkt);
2105 ✗ if (ret < 0)
2106 ✗ return ret;
2107 }
2108
2109 ✗ if (os->first_pts == AV_NOPTS_VALUE) {
2110 ✗ os->first_pts = pkt->pts;
2111 }
2112 ✗ os->last_pts = pkt->pts;
2113
2114 ✗ if (!c->availability_start_time[0]) {
2115 ✗ int64_t start_time_us = av_gettime();
2116 ✗ c->start_time_s = start_time_us / 1000000;
2117 ✗ format_date(c->availability_start_time,
2118 sizeof(c->availability_start_time), start_time_us);
2119 }
2120
2121 ✗ if (!os->packets_written)
2122 ✗ os->availability_time_offset = 0;
2123
2124 ✗ if (!os->availability_time_offset &&
2125 ✗ ((os->frag_type == FRAG_TYPE_DURATION && os->seg_duration != os->frag_duration) ||
2126 ✗ (os->frag_type == FRAG_TYPE_EVERY_FRAME && pkt->duration))) {
2127 ✗ AdaptationSet *as = &c->as[os->as_idx - 1];
2128 ✗ int64_t frame_duration = 0;
2129
2130 ✗ switch (os->frag_type) {
2131 ✗ case FRAG_TYPE_DURATION:
2132 ✗ frame_duration = os->frag_duration;
2133 ✗ break;
2134 ✗ case FRAG_TYPE_EVERY_FRAME:
2135 ✗ frame_duration = av_rescale_q(pkt->duration, st->time_base, AV_TIME_BASE_Q);
2136 ✗ break;
2137 }
2138
2139<