FFmpeg coverage

Line	Branch	Exec	Source
1			/*
2			* Live HDS fragmenter
3			* Copyright (c) 2013 Martin Storsjo
4			*
5			* This file is part of FFmpeg.
6			*
7			* FFmpeg is free software; you can redistribute it and/or
8			* modify it under the terms of the GNU Lesser General Public
9			* License as published by the Free Software Foundation; either
10			* version 2.1 of the License, or (at your option) any later version.
11			*
12			* FFmpeg is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15			* Lesser General Public License for more details.
16			*
17			* You should have received a copy of the GNU Lesser General Public
18			* License along with FFmpeg; if not, write to the Free Software
19			* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20			*/
21
22			#include "config.h"
23			#if HAVE_UNISTD_H
24			#include <unistd.h>
25			#endif
26
27			#include "avformat.h"
28			#include "internal.h"
29			#include "mux.h"
30			#include "os_support.h"
31
32			#include "libavutil/attributes_internal.h"
33			#include "libavutil/avstring.h"
34			#include "libavutil/base64.h"
35			#include "libavutil/intreadwrite.h"
36			#include "libavutil/mathematics.h"
37			#include "libavutil/mem.h"
38			#include "libavutil/opt.h"
39
40			typedef struct Fragment {
41			char file[1024];
42			int64_t start_time, duration;
43			int n;
44			} Fragment;
45
46			typedef struct OutputStream {
47			int bitrate;
48			int first_stream;
49			AVFormatContext *ctx;
50			int ctx_inited;
51			uint8_t iobuf[32768];
52			char temp_filename[1024];
53			int64_t frag_start_ts, last_ts;
54			AVIOContext *out;
55			int packets_written;
56			int nb_fragments, fragments_size, fragment_index;
57			Fragment **fragments;
58
59			int has_audio, has_video;
60
61			uint8_t *metadata;
62			int metadata_size;
63
64			uint8_t *extra_packets[2];
65			int extra_packet_sizes[2];
66			int nb_extra_packets;
67			} OutputStream;
68
69			typedef struct HDSContext {
70			const AVClass *class; /* Class for private options. */
71			int window_size;
72			int extra_window_size;
73			int min_frag_duration;
74			int remove_at_exit;
75
76			OutputStream *streams;
77			int nb_streams;
78			} HDSContext;
79
80		✗	static int parse_header(OutputStream *os, const uint8_t *buf, int buf_size)
81			{
82		✗	if (buf_size < 13)
83		✗	return AVERROR_INVALIDDATA;
84		✗	if (memcmp(buf, "FLV", 3))
85		✗	return AVERROR_INVALIDDATA;
86		✗	buf += 13;
87		✗	buf_size -= 13;
88		✗	while (buf_size >= 11 + 4) {
89		✗	int type = buf[0];
90		✗	int size = AV_RB24(&buf[1]) + 11 + 4;
91		✗	if (size > buf_size)
92		✗	return AVERROR_INVALIDDATA;
93		✗	if (type == 8 || type == 9) {
94		✗	if (os->nb_extra_packets >= FF_ARRAY_ELEMS(os->extra_packets))
95		✗	return AVERROR_INVALIDDATA;
96		✗	os->extra_packet_sizes[os->nb_extra_packets] = size;
97		✗	os->extra_packets[os->nb_extra_packets] = av_memdup(buf, size);
98		✗	if (!os->extra_packets[os->nb_extra_packets])
99		✗	return AVERROR(ENOMEM);
100		✗	os->nb_extra_packets++;
101		✗	} else if (type == 0x12) {
102		✗	if (os->metadata)
103		✗	return AVERROR_INVALIDDATA;
104		✗	os->metadata_size = size - 11 - 4;
105		✗	os->metadata = av_memdup(buf + 11, os->metadata_size);
106		✗	if (!os->metadata)
107		✗	return AVERROR(ENOMEM);
108			}
109		✗	buf += size;
110		✗	buf_size -= size;
111			}
112		✗	if (!os->metadata)
113		✗	return AVERROR_INVALIDDATA;
114		✗	return 0;
115			}
116
117		✗	static int hds_write(void *opaque, const uint8_t *buf, int buf_size)
118			{
119		✗	OutputStream *os = opaque;
120		✗	if (os->out) {
121		✗	avio_write(os->out, buf, buf_size);
122			} else {
123		✗	if (!os->metadata_size) {
124			int ret;
125			// Assuming the IO buffer is large enough to fit the
126			// FLV header and all metadata and extradata packets
127		✗	if ((ret = parse_header(os, buf, buf_size)) < 0)
128		✗	return ret;
129			}
130			}
131		✗	return buf_size;
132			}
133
134		✗	static void hds_free(AVFormatContext *s)
135			{
136		✗	HDSContext *c = s->priv_data;
137			int i, j;
138		✗	if (!c->streams)
139		✗	return;
140		✗	for (i = 0; i < s->nb_streams; i++) {
141		✗	OutputStream *os = &c->streams[i];
142		✗	if (os->out)
143		✗	ff_format_io_close(s, &os->out);
144		✗	if (os->ctx && os->ctx_inited)
145		✗	av_write_trailer(os->ctx);
146		✗	if (os->ctx)
147		✗	avio_context_free(&os->ctx->pb);
148		✗	avformat_free_context(os->ctx);
149		✗	av_freep(&os->metadata);
150		✗	for (j = 0; j < os->nb_extra_packets; j++)
151		✗	av_freep(&os->extra_packets[j]);
152		✗	for (j = 0; j < os->nb_fragments; j++)
153		✗	av_freep(&os->fragments[j]);
154		✗	av_freep(&os->fragments);
155			}
156		✗	av_freep(&c->streams);
157			}
158
159		✗	static int write_manifest(AVFormatContext *s, int final)
160			{
161		✗	HDSContext *c = s->priv_data;
162			AVIOContext *out;
163			char filename[1024], temp_filename[1024];
164			int ret, i;
165		✗	double duration = 0;
166
167		✗	if (c->nb_streams > 0)
168		✗	duration = c->streams[0].last_ts * av_q2d(s->streams[0]->time_base);
169
170		✗	snprintf(filename, sizeof(filename), "%s/index.f4m", s->url);
171		✗	snprintf(temp_filename, sizeof(temp_filename), "%s/index.f4m.tmp", s->url);
172		✗	ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, NULL);
173		✗	if (ret < 0) {
174		✗	av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
175		✗	return ret;
176			}
177		✗	avio_printf(out, "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
178		✗	avio_printf(out, "<manifest xmlns=\"http://ns.adobe.com/f4m/1.0\">\n");
179		✗	avio_printf(out, "\t<id>%s</id>\n", av_basename(s->url));
180		✗	avio_printf(out, "\t<streamType>%s</streamType>\n",
181			final ? "recorded" : "live");
182		✗	avio_printf(out, "\t<deliveryType>streaming</deliveryType>\n");
183		✗	if (final)
184		✗	avio_printf(out, "\t<duration>%f</duration>\n", duration);
185		✗	for (i = 0; i < c->nb_streams; i++) {
186		✗	OutputStream *os = &c->streams[i];
187		✗	int b64_size = AV_BASE64_SIZE(os->metadata_size);
188		✗	char *base64 = av_malloc(b64_size);
189		✗	if (!base64) {
190		✗	ff_format_io_close(s, &out);
191		✗	return AVERROR(ENOMEM);
192			}
193		✗	av_base64_encode(base64, b64_size, os->metadata, os->metadata_size);
194
195		✗	avio_printf(out, "\t<bootstrapInfo profile=\"named\" url=\"stream%d.abst\" id=\"bootstrap%d\" />\n", i, i);
196		✗	avio_printf(out, "\t<media bitrate=\"%d\" url=\"stream%d\" bootstrapInfoId=\"bootstrap%d\">\n", os->bitrate/1000, i, i);
197		✗	avio_printf(out, "\t\t<metadata>%s</metadata>\n", base64);
198		✗	avio_printf(out, "\t</media>\n");
199		✗	av_free(base64);
200			}
201		✗	avio_printf(out, "</manifest>\n");
202		✗	avio_flush(out);
203		✗	ff_format_io_close(s, &out);
204		✗	return ff_rename(temp_filename, filename, s);
205			}
206
207		✗	static void update_size(AVIOContext *out, int64_t pos)
208			{
209		✗	int64_t end = avio_tell(out);
210		✗	avio_seek(out, pos, SEEK_SET);
211		✗	avio_wb32(out, end - pos);
212		✗	avio_seek(out, end, SEEK_SET);
213		✗	}
214
215			/* Note, the .abst files need to be served with the "binary/octet"
216			* mime type, otherwise at least the OSMF player can easily fail
217			* with "stream not found" when polling for the next fragment. */
218		✗	static int write_abst(AVFormatContext *s, OutputStream *os, int final)
219			{
220		✗	HDSContext *c = s->priv_data;
221			AVIOContext *out;
222			char filename[1024], temp_filename[1024];
223			int i, ret;
224			int64_t asrt_pos, afrt_pos;
225		✗	int start = 0, fragments;
226		✗	int index = s->streams[os->first_stream]->id;
227		✗	int64_t cur_media_time = 0;
228		✗	if (c->window_size)
229		✗	start = FFMAX(os->nb_fragments - c->window_size, 0);
230		✗	fragments = os->nb_fragments - start;
231		✗	if (final)
232		✗	cur_media_time = os->last_ts;
233		✗	else if (os->nb_fragments)
234		✗	cur_media_time = os->fragments[os->nb_fragments - 1]->start_time;
235
236		✗	snprintf(filename, sizeof(filename),
237			"%s/stream%d.abst", s->url, index);
238		✗	snprintf(temp_filename, sizeof(temp_filename),
239			"%s/stream%d.abst.tmp", s->url, index);
240		✗	ret = s->io_open(s, &out, temp_filename, AVIO_FLAG_WRITE, NULL);
241		✗	if (ret < 0) {
242		✗	av_log(s, AV_LOG_ERROR, "Unable to open %s for writing\n", temp_filename);
243		✗	return ret;
244			}
245		✗	avio_wb32(out, 0); // abst size
246		✗	avio_wl32(out, MKTAG('a','b','s','t'));
247		✗	avio_wb32(out, 0); // version + flags
248		✗	avio_wb32(out, os->fragment_index - 1); // BootstrapinfoVersion
249		✗	avio_w8(out, final ? 0 : 0x20); // profile, live, update
250		✗	avio_wb32(out, 1000); // timescale
251		✗	avio_wb64(out, cur_media_time);
252		✗	avio_wb64(out, 0); // SmpteTimeCodeOffset
253		✗	avio_w8(out, 0); // MovieIdentifer (null string)
254		✗	avio_w8(out, 0); // ServerEntryCount
255		✗	avio_w8(out, 0); // QualityEntryCount
256		✗	avio_w8(out, 0); // DrmData (null string)
257		✗	avio_w8(out, 0); // MetaData (null string)
258		✗	avio_w8(out, 1); // SegmentRunTableCount
259		✗	asrt_pos = avio_tell(out);
260		✗	avio_wb32(out, 0); // asrt size
261		✗	avio_wl32(out, MKTAG('a','s','r','t'));
262		✗	avio_wb32(out, 0); // version + flags
263		✗	avio_w8(out, 0); // QualityEntryCount
264		✗	avio_wb32(out, 1); // SegmentRunEntryCount
265		✗	avio_wb32(out, 1); // FirstSegment
266		✗	avio_wb32(out, final ? (os->fragment_index - 1) : 0xffffffff); // FragmentsPerSegment
267		✗	update_size(out, asrt_pos);
268		✗	avio_w8(out, 1); // FragmentRunTableCount
269		✗	afrt_pos = avio_tell(out);
270		✗	avio_wb32(out, 0); // afrt size
271		✗	avio_wl32(out, MKTAG('a','f','r','t'));
272		✗	avio_wb32(out, 0); // version + flags
273		✗	avio_wb32(out, 1000); // timescale
274		✗	avio_w8(out, 0); // QualityEntryCount
275		✗	avio_wb32(out, fragments); // FragmentRunEntryCount
276		✗	for (i = start; i < os->nb_fragments; i++) {
277		✗	avio_wb32(out, os->fragments[i]->n);
278		✗	avio_wb64(out, os->fragments[i]->start_time);
279		✗	avio_wb32(out, os->fragments[i]->duration);
280			}
281		✗	update_size(out, afrt_pos);
282		✗	update_size(out, 0);
283		✗	ff_format_io_close(s, &out);
284		✗	return ff_rename(temp_filename, filename, s);
285			}
286
287		✗	static int init_file(AVFormatContext *s, OutputStream *os, int64_t start_ts)
288			{
289			int ret, i;
290		✗	ret = s->io_open(s, &os->out, os->temp_filename, AVIO_FLAG_WRITE, NULL);
291		✗	if (ret < 0)
292		✗	return ret;
293		✗	avio_wb32(os->out, 0);
294		✗	avio_wl32(os->out, MKTAG('m','d','a','t'));
295		✗	for (i = 0; i < os->nb_extra_packets; i++) {
296		✗	AV_WB24(os->extra_packets[i] + 4, start_ts);
297		✗	os->extra_packets[i][7] = (start_ts >> 24) & 0x7f;
298		✗	avio_write(os->out, os->extra_packets[i], os->extra_packet_sizes[i]);
299			}
300		✗	return 0;
301			}
302
303		✗	static void close_file(AVFormatContext *s, OutputStream *os)
304			{
305		✗	int64_t pos = avio_tell(os->out);
306		✗	avio_seek(os->out, 0, SEEK_SET);
307		✗	avio_wb32(os->out, pos);
308		✗	avio_flush(os->out);
309		✗	ff_format_io_close(s, &os->out);
310		✗	}
311
312		✗	static int hds_write_header(AVFormatContext *s)
313			{
314		✗	HDSContext *c = s->priv_data;
315		✗	int ret = 0, i;
316
317		✗	if (mkdir(s->url, 0777) == -1 && errno != EEXIST) {
318		✗	av_log(s, AV_LOG_ERROR , "Failed to create directory %s\n", s->url);
319		✗	return AVERROR(errno);
320			}
321
322
323		✗	c->streams = av_calloc(s->nb_streams, sizeof(*c->streams));
324		✗	if (!c->streams) {
325		✗	return AVERROR(ENOMEM);
326			}
327
328		✗	for (i = 0; i < s->nb_streams; i++) {
329		✗	OutputStream *os = &c->streams[c->nb_streams];
330			AVFormatContext *ctx;
331		✗	AVStream *st = s->streams[i];
332
333		✗	if (!st->codecpar->bit_rate) {
334		✗	av_log(s, AV_LOG_ERROR, "No bit rate set for stream %d\n", i);
335		✗	return AVERROR(EINVAL);
336			}
337		✗	if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
338		✗	if (os->has_video) {
339		✗	c->nb_streams++;
340		✗	os++;
341			}
342		✗	os->has_video = 1;
343		✗	} else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
344		✗	if (os->has_audio) {
345		✗	c->nb_streams++;
346		✗	os++;
347			}
348		✗	os->has_audio = 1;
349			} else {
350		✗	av_log(s, AV_LOG_ERROR, "Unsupported stream type in stream %d\n", i);
351		✗	return AVERROR(EINVAL);
352			}
353		✗	os->bitrate += s->streams[i]->codecpar->bit_rate;
354
355		✗	if (!os->ctx) {
356		✗	os->first_stream = i;
357		✗	ctx = avformat_alloc_context();
358		✗	if (!ctx) {
359		✗	return AVERROR(ENOMEM);
360			}
361		✗	os->ctx = ctx;
362			EXTERN const FFOutputFormat ff_flv_muxer;
363		✗	ctx->oformat = &ff_flv_muxer.p;
364		✗	ctx->interrupt_callback = s->interrupt_callback;
365		✗	ctx->flags = s->flags;
366
367		✗	ctx->pb = avio_alloc_context(os->iobuf, sizeof(os->iobuf),
368			1, os,
369			NULL, hds_write, NULL);
370		✗	if (!ctx->pb) {
371		✗	return AVERROR(ENOMEM);
372			}
373			} else {
374		✗	ctx = os->ctx;
375			}
376		✗	s->streams[i]->id = c->nb_streams;
377
378		✗	if (!(st = avformat_new_stream(ctx, NULL))) {
379		✗	return AVERROR(ENOMEM);
380			}
381		✗	avcodec_parameters_copy(st->codecpar, s->streams[i]->codecpar);
382		✗	st->codecpar->codec_tag = 0;
383		✗	st->sample_aspect_ratio = s->streams[i]->sample_aspect_ratio;
384		✗	st->time_base = s->streams[i]->time_base;
385			}
386		✗	if (c->streams[c->nb_streams].ctx)
387		✗	c->nb_streams++;
388
389		✗	for (i = 0; i < c->nb_streams; i++) {
390		✗	OutputStream *os = &c->streams[i];
391			int j;
392		✗	if ((ret = avformat_write_header(os->ctx, NULL)) < 0) {
393		✗	return ret;
394			}
395		✗	os->ctx_inited = 1;
396		✗	avio_flush(os->ctx->pb);
397		✗	for (j = 0; j < os->ctx->nb_streams; j++)
398		✗	s->streams[os->first_stream + j]->time_base = os->ctx->streams[j]->time_base;
399
400		✗	snprintf(os->temp_filename, sizeof(os->temp_filename),
401			"%s/stream%d_temp", s->url, i);
402		✗	ret = init_file(s, os, 0);
403		✗	if (ret < 0)
404		✗	return ret;
405
406		✗	if (!os->has_video && c->min_frag_duration <= 0) {
407		✗	av_log(s, AV_LOG_WARNING,
408			"No video stream in output stream %d and no min frag duration set\n", i);
409			}
410		✗	os->fragment_index = 1;
411		✗	write_abst(s, os, 0);
412			}
413		✗	ret = write_manifest(s, 0);
414
415		✗	return ret;
416			}
417
418		✗	static int add_fragment(OutputStream *os, const char *file,
419			int64_t start_time, int64_t duration)
420			{
421			Fragment *frag;
422		✗	if (duration == 0)
423		✗	duration = 1;
424		✗	if (os->nb_fragments >= os->fragments_size) {
425			int ret;
426		✗	os->fragments_size = (os->fragments_size + 1) * 2;
427		✗	if ((ret = av_reallocp_array(&os->fragments, os->fragments_size,
428			sizeof(*os->fragments))) < 0) {
429		✗	os->fragments_size = 0;
430		✗	os->nb_fragments = 0;
431		✗	return ret;
432			}
433			}
434		✗	frag = av_mallocz(sizeof(*frag));
435		✗	if (!frag)
436		✗	return AVERROR(ENOMEM);
437		✗	av_strlcpy(frag->file, file, sizeof(frag->file));
438		✗	frag->start_time = start_time;
439		✗	frag->duration = duration;
440		✗	frag->n = os->fragment_index;
441		✗	os->fragments[os->nb_fragments++] = frag;
442		✗	os->fragment_index++;
443		✗	return 0;
444			}
445
446		✗	static int hds_flush(AVFormatContext *s, OutputStream *os, int final,
447			int64_t end_ts)
448			{
449		✗	HDSContext *c = s->priv_data;
450		✗	int i, ret = 0;
451			char target_filename[1024];
452		✗	int index = s->streams[os->first_stream]->id;
453
454		✗	if (!os->packets_written)
455		✗	return 0;
456
457		✗	avio_flush(os->ctx->pb);
458		✗	os->packets_written = 0;
459		✗	close_file(s, os);
460
461		✗	snprintf(target_filename, sizeof(target_filename),
462			"%s/stream%dSeg1-Frag%d", s->url, index, os->fragment_index);
463		✗	ret = ff_rename(os->temp_filename, target_filename, s);
464		✗	if (ret < 0)
465		✗	return ret;
466		✗	add_fragment(os, target_filename, os->frag_start_ts, end_ts - os->frag_start_ts);
467
468		✗	if (!final) {
469		✗	ret = init_file(s, os, end_ts);
470		✗	if (ret < 0)
471		✗	return ret;
472			}
473
474		✗	if (c->window_size || (final && c->remove_at_exit)) {
475		✗	int remove = os->nb_fragments - c->window_size - c->extra_window_size;
476		✗	if (final && c->remove_at_exit)
477		✗	remove = os->nb_fragments;
478		✗	if (remove > 0) {
479		✗	for (i = 0; i < remove; i++) {
480		✗	unlink(os->fragments[i]->file);
481		✗	av_freep(&os->fragments[i]);
482			}
483		✗	os->nb_fragments -= remove;
484		✗	memmove(os->fragments, os->fragments + remove,
485		✗	os->nb_fragments * sizeof(*os->fragments));
486			}
487			}
488
489		✗	if (ret >= 0)
490		✗	ret = write_abst(s, os, final);
491		✗	return ret;
492			}
493
494		✗	static int hds_write_packet(AVFormatContext *s, AVPacket *pkt)
495			{
496		✗	HDSContext *c = s->priv_data;
497		✗	AVStream *st = s->streams[pkt->stream_index];
498		✗	FFStream *const sti = ffstream(st);
499		✗	OutputStream *os = &c->streams[s->streams[pkt->stream_index]->id];
500		✗	int64_t end_dts = os->fragment_index * (int64_t)c->min_frag_duration;
501			int ret;
502
503		✗	if (sti->first_dts == AV_NOPTS_VALUE)
504		✗	sti->first_dts = pkt->dts;
505
506		✗	if ((!os->has_video || st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) &&
507		✗	av_compare_ts(pkt->dts - sti->first_dts, st->time_base,
508		✗	end_dts, AV_TIME_BASE_Q) >= 0 &&
509		✗	pkt->flags & AV_PKT_FLAG_KEY && os->packets_written) {
510
511		✗	if ((ret = hds_flush(s, os, 0, pkt->dts)) < 0)
512		✗	return ret;
513			}
514
515			// Note, these fragment start timestamps, that represent a whole
516			// OutputStream, assume all streams in it have the same time base.
517		✗	if (!os->packets_written)
518		✗	os->frag_start_ts = pkt->dts;
519		✗	os->last_ts = pkt->dts;
520
521		✗	os->packets_written++;
522		✗	return ff_write_chained(os->ctx, pkt->stream_index - os->first_stream, pkt, s, 0);
523			}
524
525		✗	static int hds_write_trailer(AVFormatContext *s)
526			{
527		✗	HDSContext *c = s->priv_data;
528			int i;
529
530		✗	for (i = 0; i < c->nb_streams; i++)
531		✗	hds_flush(s, &c->streams[i], 1, c->streams[i].last_ts);
532		✗	write_manifest(s, 1);
533
534		✗	if (c->remove_at_exit) {
535			char filename[1024];
536		✗	snprintf(filename, sizeof(filename), "%s/index.f4m", s->url);
537		✗	unlink(filename);
538		✗	for (i = 0; i < c->nb_streams; i++) {
539		✗	snprintf(filename, sizeof(filename), "%s/stream%d.abst", s->url, i);
540		✗	unlink(filename);
541			}
542		✗	rmdir(s->url);
543			}
544
545		✗	return 0;
546			}
547
548			#define OFFSET(x) offsetof(HDSContext, x)
549			#define E AV_OPT_FLAG_ENCODING_PARAM
550			static const AVOption options[] = {
551			{ "window_size", "number of fragments kept in the manifest", OFFSET(window_size), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, INT_MAX, E },
552			{ "extra_window_size", "number of fragments kept outside of the manifest before removing from disk", OFFSET(extra_window_size), AV_OPT_TYPE_INT, { .i64 = 5 }, 0, INT_MAX, E },
553			{ "min_frag_duration", "minimum fragment duration (in microseconds)", OFFSET(min_frag_duration), AV_OPT_TYPE_INT64, { .i64 = 10000000 }, 0, INT_MAX, E },
554			{ "remove_at_exit", "remove all fragments when finished", OFFSET(remove_at_exit), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
555			{ NULL },
556			};
557
558			static const AVClass hds_class = {
559			.class_name = "HDS muxer",
560			.item_name = av_default_item_name,
561			.option = options,
562			.version = LIBAVUTIL_VERSION_INT,
563			};
564
565			const FFOutputFormat ff_hds_muxer = {
566			.p.name = "hds",
567			.p.long_name = NULL_IF_CONFIG_SMALL("HDS Muxer"),
568			.p.audio_codec = AV_CODEC_ID_AAC,
569			.p.video_codec = AV_CODEC_ID_H264,
570			.p.flags = AVFMT_GLOBALHEADER | AVFMT_NOFILE,
571			.p.priv_class = &hds_class,
572			.priv_data_size = sizeof(HDSContext),
573			.write_header = hds_write_header,
574			.write_packet = hds_write_packet,
575			.write_trailer = hds_write_trailer,
576			.deinit = hds_free,
577			};
578