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rtsp.c
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1/*
2 * RTSP/SDP client
3 * Copyright (c) 2002 Fabrice Bellard
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_components.h"
23
24#include "libavutil/avassert.h"
25#include "libavutil/base64.h"
26#include "libavutil/bprint.h"
27#include "libavutil/avstring.h"
28#include "libavutil/intreadwrite.h"
29#include "libavutil/mathematics.h"
30#include "libavutil/mem.h"
31#include "libavutil/parseutils.h"
32#include "libavutil/random_seed.h"
33#include "libavutil/dict.h"
34#include "libavutil/opt.h"
35#include "libavutil/time.h"
36#include "libavcodec/codec_desc.h"
37#include "avformat.h"
38#include "avio_internal.h"
39#include "demux.h"
40
41#if HAVE_POLL_H
42#include <poll.h>
43#endif
44#include "internal.h"
45#include "network.h"
46#include "os_support.h"
47#include "http.h"
48#include "rtsp.h"
49
50#include "rtpdec.h"
51#include "rtpproto.h"
52#include "rdt.h"
53#include "rtpdec_formats.h"
54#include "rtpenc_chain.h"
55#include "url.h"
56#include "tls.h"
57#include "rtpenc.h"
58#include "mpegts.h"
59#include "version.h"
60
61/* Default timeout values for read packet in seconds */
62#define READ_PACKET_TIMEOUT_S 10
63#define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
64#define DEFAULT_REORDERING_DELAY 100000
65
66#define OFFSET(x) offsetof(RTSPState, x)
67#define DEC AV_OPT_FLAG_DECODING_PARAM
68#define ENC AV_OPT_FLAG_ENCODING_PARAM
69
70#define RTSP_FLAG_OPTS(name, longname) \
71 { name, longname, OFFSET(rtsp_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC, .unit = "rtsp_flags" }, \
72 { "filter_src", "only receive packets from the negotiated peer IP", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_FILTER_SRC}, 0, 0, DEC, .unit = "rtsp_flags" }
73
74#define RTSP_MEDIATYPE_OPTS(name, longname) \
75 { name, longname, OFFSET(media_type_mask), AV_OPT_TYPE_FLAGS, { .i64 = (1 << (AVMEDIA_TYPE_SUBTITLE+1)) - 1 }, INT_MIN, INT_MAX, DEC, .unit = "allowed_media_types" }, \
76 { "video", "Video", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_VIDEO}, 0, 0, DEC, .unit = "allowed_media_types" }, \
77 { "audio", "Audio", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_AUDIO}, 0, 0, DEC, .unit = "allowed_media_types" }, \
78 { "data", "Data", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_DATA}, 0, 0, DEC, .unit = "allowed_media_types" }, \
79 { "subtitle", "Subtitle", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_SUBTITLE}, 0, 0, DEC, .unit = "allowed_media_types" }
80
81#define COMMON_OPTS() \
82 { "reorder_queue_size", "set number of packets to buffer for handling of reordered packets", OFFSET(reordering_queue_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC }, \
83 { "buffer_size", "Underlying protocol send/receive buffer size", OFFSET(buffer_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC|ENC }, \
84 { "pkt_size", "Underlying protocol send packet size", OFFSET(pkt_size), AV_OPT_TYPE_INT, { .i64 = 1472 }, -1, INT_MAX, ENC } \
85
86
87const AVOption ff_rtsp_options[] = {
88 { "initial_pause", "do not start playing the stream immediately", OFFSET(initial_pause), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, DEC },
89 FF_RTP_FLAG_OPTS(RTSPState, rtp_muxer_flags),
90 { "rtsp_transport", "set RTSP transport protocols", OFFSET(lower_transport_mask), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC|ENC, .unit = "rtsp_transport" }, \
91 { "udp", "UDP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP}, 0, 0, DEC|ENC, .unit = "rtsp_transport" }, \
92 { "tcp", "TCP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_TCP}, 0, 0, DEC|ENC, .unit = "rtsp_transport" }, \
93 { "udp_multicast", "UDP multicast", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP_MULTICAST}, 0, 0, DEC, .unit = "rtsp_transport" },
94 { "http", "HTTP tunneling", 0, AV_OPT_TYPE_CONST, {.i64 = (1 << RTSP_LOWER_TRANSPORT_HTTP)}, 0, 0, DEC, .unit = "rtsp_transport" },
95 { "https", "HTTPS tunneling", 0, AV_OPT_TYPE_CONST, {.i64 = (1 << RTSP_LOWER_TRANSPORT_HTTPS )}, 0, 0, DEC, .unit = "rtsp_transport" },
96 RTSP_FLAG_OPTS("rtsp_flags", "set RTSP flags"),
97 { "listen", "wait for incoming connections", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_LISTEN}, 0, 0, DEC, .unit = "rtsp_flags" },
98 { "prefer_tcp", "try RTP via TCP first, if available", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_PREFER_TCP}, 0, 0, DEC|ENC, .unit = "rtsp_flags" },
99 { "satip_raw", "export raw MPEG-TS stream instead of demuxing", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_SATIP_RAW}, 0, 0, DEC, .unit = "rtsp_flags" },
100 RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
101 { "min_port", "set minimum local UDP port", OFFSET(rtp_port_min), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MIN}, 0, 65535, DEC|ENC },
102 { "max_port", "set maximum local UDP port", OFFSET(rtp_port_max), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MAX}, 0, 65535, DEC|ENC },
103 { "listen_timeout", "set maximum timeout (in seconds) to wait for incoming connections (-1 is infinite, imply flag listen)", OFFSET(initial_timeout), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, DEC },
104 { "timeout", "set timeout (in microseconds) of socket I/O operations", OFFSET(stimeout), AV_OPT_TYPE_INT64, {.i64 = 0}, INT_MIN, INT64_MAX, DEC },
105 COMMON_OPTS(),
106 { "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, {.str = LIBAVFORMAT_IDENT}, 0, 0, DEC },
107
108 // TLS options
109 FF_TLS_CLIENT_OPTIONS(RTSPState, tls_opts),
110 { NULL },
111};
112
113static const AVOption sdp_options[] = {
114 RTSP_FLAG_OPTS("sdp_flags", "SDP flags"),
115 { "custom_io", "use custom I/O", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_CUSTOM_IO}, 0, 0, DEC, .unit = "rtsp_flags" },
116 { "rtcp_to_source", "send RTCP packets to the source address of received packets", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_RTCP_TO_SOURCE}, 0, 0, DEC, .unit = "rtsp_flags" },
117 { "listen_timeout", "set maximum timeout (in seconds) to wait for incoming connections", OFFSET(stimeout), AV_OPT_TYPE_DURATION, {.i64 = READ_PACKET_TIMEOUT_S*1000000}, INT_MIN, INT64_MAX, DEC },
118 { "localaddr", "local address", OFFSET(localaddr),AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, \
119 RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
120 COMMON_OPTS(),
121 { NULL },
122};
123
124static const AVOption rtp_options[] = {
125 RTSP_FLAG_OPTS("rtp_flags", "set RTP flags"),
126 { "listen_timeout", "set maximum timeout (in seconds) to wait for incoming connections", OFFSET(stimeout), AV_OPT_TYPE_DURATION, {.i64 = READ_PACKET_TIMEOUT_S*1000000}, INT_MIN, INT64_MAX, DEC },
127 { "localaddr", "local address", OFFSET(localaddr),AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, DEC }, \
128 RTSP_MEDIATYPE_OPTS("allowed_media_types", "set media types to accept from the server"),
129 COMMON_OPTS(),
130 { NULL },
131};
132
133
134static AVDictionary *map_to_opts(RTSPState *rt)
135{
136 AVDictionary *opts = NULL;
137
138 av_dict_set_int(&opts, "buffer_size", rt->buffer_size, 0);
139 av_dict_set_int(&opts, "pkt_size", rt->pkt_size, 0);
140 if (rt->localaddr && rt->localaddr[0])
141 av_dict_set(&opts, "localaddr", rt->localaddr, 0);
142
143 return opts;
144}
145
146#define ERR_RET(c) \
147 do { \
148 int ret = c; \
149 if (ret < 0) \
150 return ret; \
151 } while (0)
152
153/**
154 * Add the TLS options of the given RTSPState to the dict
155 */
156static int copy_tls_opts_dict(RTSPState *rt, AVDictionary **dict)
157{
158 ERR_RET(av_dict_set_int(dict, "tls_verify", rt->tls_opts.verify, 0));
159 ERR_RET(av_dict_set(dict, "ca_file", rt->tls_opts.ca_file, 0));
160 ERR_RET(av_dict_set(dict, "cert_file", rt->tls_opts.cert_file, 0));
161 ERR_RET(av_dict_set(dict, "key_file", rt->tls_opts.key_file, 0));
162 ERR_RET(av_dict_set(dict, "verifyhost", rt->tls_opts.host, 0));
163
164 return 0;
165}
166
167#undef ERR_RET
168
169static void get_word_until_chars(char *buf, int buf_size,
170 const char *sep, const char **pp)
171{
172 const char *p;
173 char *q;
174
175 p = *pp;
176 p += strspn(p, SPACE_CHARS);
177 q = buf;
178 while (!strchr(sep, *p) && *p != '\0') {
179 if ((q - buf) < buf_size - 1)
180 *q++ = *p;
181 p++;
182 }
183 if (buf_size > 0)
184 *q = '\0';
185 *pp = p;
186}
187
188static void get_word_sep(char *buf, int buf_size, const char *sep,
189 const char **pp)
190{
191 if (**pp == '/') (*pp)++;
192 get_word_until_chars(buf, buf_size, sep, pp);
193}
194
195static void get_word(char *buf, int buf_size, const char **pp)
196{
197 get_word_until_chars(buf, buf_size, SPACE_CHARS, pp);
198}
199
200/** Parse a string p in the form of Range:npt=xx-xx, and determine the start
201 * and end time.
202 * Used for seeking in the rtp stream.
203 */
204static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
205{
206 char buf[256];
207
208 p += strspn(p, SPACE_CHARS);
209 if (!av_stristart(p, "npt=", &p))
210 return;
211
212 *start = AV_NOPTS_VALUE;
213 *end = AV_NOPTS_VALUE;
214
215 get_word_sep(buf, sizeof(buf), "-", &p);
216 if (av_parse_time(start, buf, 1) < 0)
217 return;
218 if (*p == '-') {
219 p++;
220 get_word_sep(buf, sizeof(buf), "-", &p);
221 if (av_parse_time(end, buf, 1) < 0)
222 av_log(NULL, AV_LOG_DEBUG, "Failed to parse interval end specification '%s'\n", buf);
223 }
224}
225
226static int get_sockaddr(AVFormatContext *s,
227 const char *buf, struct sockaddr_storage *sock)
228{
229 struct addrinfo hints = { 0 }, *ai = NULL;
230 int ret;
231
232 hints.ai_flags = AI_NUMERICHOST;
233 if ((ret = getaddrinfo(buf, NULL, &hints, &ai))) {
234 av_log(s, AV_LOG_ERROR, "getaddrinfo(%s): %s\n",
235 buf,
236 gai_strerror(ret));
237 return -1;
238 }
239 memcpy(sock, ai->ai_addr, FFMIN(sizeof(*sock), ai->ai_addrlen));
240 freeaddrinfo(ai);
241 return 0;
242}
243
244#if CONFIG_RTPDEC
245static void init_rtp_handler(const RTPDynamicProtocolHandler *handler,
246 RTSPStream *rtsp_st, AVStream *st)
247{
248 AVCodecParameters *par = st ? st->codecpar : NULL;
249 if (!handler)
250 return;
251 if (par)
252 par->codec_id = handler->codec_id;
253 rtsp_st->dynamic_handler = handler;
254 if (st)
255 ffstream(st)->need_parsing = handler->need_parsing;
256 if (handler->priv_data_size) {
257 rtsp_st->dynamic_protocol_context = av_mallocz(handler->priv_data_size);
258 if (!rtsp_st->dynamic_protocol_context)
259 rtsp_st->dynamic_handler = NULL;
260 }
261}
262
263static void finalize_rtp_handler_init(AVFormatContext *s, RTSPStream *rtsp_st,
264 AVStream *st)
265{
266 if (rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->init) {
267 int ret = rtsp_st->dynamic_handler->init(s, st ? st->index : -1,
268 rtsp_st->dynamic_protocol_context);
269 if (ret < 0) {
270 if (rtsp_st->dynamic_protocol_context) {
271 if (rtsp_st->dynamic_handler->close)
272 rtsp_st->dynamic_handler->close(
273 rtsp_st->dynamic_protocol_context);
274 av_free(rtsp_st->dynamic_protocol_context);
275 }
276 rtsp_st->dynamic_protocol_context = NULL;
277 rtsp_st->dynamic_handler = NULL;
278 }
279 }
280}
281
282#if CONFIG_RTSP_DEMUXER
283static int init_satip_stream(AVFormatContext *s)
284{
285 RTSPState *rt = s->priv_data;
286 RTSPStream *rtsp_st = av_mallocz(sizeof(RTSPStream));
287 if (!rtsp_st)
288 return AVERROR(ENOMEM);
289 dynarray_add(&rt->rtsp_streams,
290 &rt->nb_rtsp_streams, rtsp_st);
291
292 rtsp_st->sdp_payload_type = 33; // MP2T
293 av_strlcpy(rtsp_st->control_url,
294 rt->control_uri, sizeof(rtsp_st->control_url));
295
296 if (rt->rtsp_flags & RTSP_FLAG_SATIP_RAW) {
297 AVStream *st = avformat_new_stream(s, NULL);
298 if (!st)
299 return AVERROR(ENOMEM);
300 st->id = rt->nb_rtsp_streams - 1;
301 rtsp_st->stream_index = st->index;
302 st->codecpar->codec_type = AVMEDIA_TYPE_DATA;
303 st->codecpar->codec_id = AV_CODEC_ID_MPEG2TS;
304 } else {
305 rtsp_st->stream_index = -1;
306 init_rtp_handler(&ff_mpegts_dynamic_handler, rtsp_st, NULL);
307 finalize_rtp_handler_init(s, rtsp_st, NULL);
308 }
309 return 0;
310}
311#endif
312
313/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */
314static int sdp_parse_rtpmap(AVFormatContext *s,
315 AVStream *st, RTSPStream *rtsp_st,
316 int payload_type, const char *p)
317{
318 AVCodecParameters *par = st->codecpar;
319 char buf[256];
320 int i;
321 const AVCodecDescriptor *desc;
322 const char *c_name;
323
324 /* See if we can handle this kind of payload.
325 * The space should normally not be there but some Real streams or
326 * particular servers ("RealServer Version 6.1.3.970", see issue 1658)
327 * have a trailing space. */
328 get_word_sep(buf, sizeof(buf), "/ ", &p);
329 if (payload_type < RTP_PT_PRIVATE) {
330 /* We are in a standard case
331 * (from http://www.iana.org/assignments/rtp-parameters). */
332 par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
333 }
334
335 if (par->codec_id == AV_CODEC_ID_NONE) {
336 const RTPDynamicProtocolHandler *handler =
337 ff_rtp_handler_find_by_name(buf, par->codec_type);
338 init_rtp_handler(handler, rtsp_st, st);
339 /* If no dynamic handler was found, check with the list of standard
340 * allocated types, if such a stream for some reason happens to
341 * use a private payload type. This isn't handled in rtpdec.c, since
342 * the format name from the rtpmap line never is passed into rtpdec. */
343 if (!rtsp_st->dynamic_handler)
344 par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
345 }
346
347 desc = avcodec_descriptor_get(par->codec_id);
348 if (desc && desc->name)
349 c_name = desc->name;
350 else
351 c_name = "(null)";
352
353 get_word_sep(buf, sizeof(buf), "/", &p);
354 i = atoi(buf);
355 switch (par->codec_type) {
356 case AVMEDIA_TYPE_AUDIO:
357 av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
358 par->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
359 par->ch_layout = (AVChannelLayout)AV_CHANNEL_LAYOUT_MONO;
360 if (i > 0) {
361 par->sample_rate = i;
362 avpriv_set_pts_info(st, 32, 1, par->sample_rate);
363 get_word_sep(buf, sizeof(buf), "/", &p);
364 i = atoi(buf);
365 if (i > 0)
366 av_channel_layout_default(&par->ch_layout, i);
367 }
368 av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
369 par->sample_rate);
370 av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n",
371 par->ch_layout.nb_channels);
372 break;
373 case AVMEDIA_TYPE_VIDEO:
374 av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
375 if (i > 0)
376 avpriv_set_pts_info(st, 32, 1, i);
377 break;
378 default:
379 break;
380 }
381 finalize_rtp_handler_init(s, rtsp_st, st);
382 return 0;
383}
384
385/* parse the attribute line from the fmtp a line of an sdp response. This
386 * is broken out as a function because it is used in rtp_h264.c, which is
387 * forthcoming. */
388int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
389 char *value, int value_size)
390{
391 *p += strspn(*p, SPACE_CHARS);
392 if (**p) {
393 get_word_sep(attr, attr_size, "=", p);
394 if (**p == '=')
395 (*p)++;
396 get_word_sep(value, value_size, ";", p);
397 if (**p == ';')
398 (*p)++;
399 return 1;
400 }
401 return 0;
402}
403
404typedef struct SDPParseState {
405 /* SDP only */
406 struct sockaddr_storage default_ip;
407 int default_ttl;
408 int skip_media; ///< set if an unknown m= line occurs
409 int nb_default_include_source_addrs; /**< Number of source-specific multicast include source IP address (from SDP content) */
410 struct RTSPSource **default_include_source_addrs; /**< Source-specific multicast include source IP address (from SDP content) */
411 int nb_default_exclude_source_addrs; /**< Number of source-specific multicast exclude source IP address (from SDP content) */
412 struct RTSPSource **default_exclude_source_addrs; /**< Source-specific multicast exclude source IP address (from SDP content) */
413 int seen_rtpmap;
414 int seen_fmtp;
415 char delayed_fmtp[2048];
416} SDPParseState;
417
418static void copy_default_source_addrs(struct RTSPSource **addrs, int count,
419 struct RTSPSource ***dest, int *dest_count)
420{
421 RTSPSource *rtsp_src, *rtsp_src2;
422 int i;
423 for (i = 0; i < count; i++) {
424 rtsp_src = addrs[i];
425 rtsp_src2 = av_memdup(rtsp_src, sizeof(*rtsp_src));
426 if (!rtsp_src2)
427 continue;
428 dynarray_add(dest, dest_count, rtsp_src2);
429 }
430}
431
432static void parse_fmtp(AVFormatContext *s, RTSPState *rt,
433 int payload_type, const char *line)
434{
435 int i;
436
437 for (i = 0; i < rt->nb_rtsp_streams; i++) {
438 RTSPStream *rtsp_st = rt->rtsp_streams[i];
439 if (rtsp_st->sdp_payload_type == payload_type &&
440 rtsp_st->dynamic_handler &&
441 rtsp_st->dynamic_handler->parse_sdp_a_line) {
442 rtsp_st->dynamic_handler->parse_sdp_a_line(s, rtsp_st->stream_index,
443 rtsp_st->dynamic_protocol_context, line);
444 }
445 }
446}
447
448static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
449 int letter, const char *buf)
450{
451 RTSPState *rt = s->priv_data;
452 char buf1[64], st_type[64];
453 const char *p;
454 enum AVMediaType codec_type;
455 int payload_type;
456 AVStream *st;
457 RTSPStream *rtsp_st;
458 RTSPSource *rtsp_src;
459 struct sockaddr_storage sdp_ip;
460 int ttl;
461
462 av_log(s, AV_LOG_TRACE, "sdp: %c='%s'\n", letter, buf);
463
464 p = buf;
465 if (s1->skip_media && letter != 'm')
466 return;
467 switch (letter) {
468 case 'c':
469 get_word(buf1, sizeof(buf1), &p);
470 if (strcmp(buf1, "IN") != 0)
471 return;
472 get_word(buf1, sizeof(buf1), &p);
473 if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6"))
474 return;
475 get_word_sep(buf1, sizeof(buf1), "/", &p);
476 if (get_sockaddr(s, buf1, &sdp_ip))
477 return;
478 ttl = 16;
479 if (*p == '/') {
480 p++;
481 get_word_sep(buf1, sizeof(buf1), "/", &p);
482 ttl = atoi(buf1);
483 }
484 if (s->nb_streams == 0) {
485 s1->default_ip = sdp_ip;
486 s1->default_ttl = ttl;
487 } else {
488 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
489 rtsp_st->sdp_ip = sdp_ip;
490 rtsp_st->sdp_ttl = ttl;
491 }
492 break;
493 case 's':
494 av_dict_set(&s->metadata, "title", p, 0);
495 break;
496 case 'i':
497 if (s->nb_streams == 0) {
498 av_dict_set(&s->metadata, "comment", p, 0);
499 break;
500 }
501 break;
502 case 'm':
503 /* new stream */
504 s1->skip_media = 0;
505 s1->seen_fmtp = 0;
506 s1->seen_rtpmap = 0;
507 codec_type = AVMEDIA_TYPE_UNKNOWN;
508 get_word(st_type, sizeof(st_type), &p);
509 if (!strcmp(st_type, "audio")) {
510 codec_type = AVMEDIA_TYPE_AUDIO;
511 } else if (!strcmp(st_type, "video")) {
512 codec_type = AVMEDIA_TYPE_VIDEO;
513 } else if (!strcmp(st_type, "application")) {
514 codec_type = AVMEDIA_TYPE_DATA;
515 } else if (!strcmp(st_type, "text")) {
516 codec_type = AVMEDIA_TYPE_SUBTITLE;
517 }
518 if (codec_type == AVMEDIA_TYPE_UNKNOWN ||
519 !(rt->media_type_mask & (1 << codec_type)) ||
520 rt->nb_rtsp_streams >= s->max_streams
521 ) {
522 s1->skip_media = 1;
523 return;
524 }
525 rtsp_st = av_mallocz(sizeof(RTSPStream));
526 if (!rtsp_st)
527 return;
528 rtsp_st->stream_index = -1;
529 dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
530
531 rtsp_st->sdp_ip = s1->default_ip;
532 rtsp_st->sdp_ttl = s1->default_ttl;
533
534 copy_default_source_addrs(s1->default_include_source_addrs,
535 s1->nb_default_include_source_addrs,
536 &rtsp_st->include_source_addrs,
537 &rtsp_st->nb_include_source_addrs);
538 copy_default_source_addrs(s1->default_exclude_source_addrs,
539 s1->nb_default_exclude_source_addrs,
540 &rtsp_st->exclude_source_addrs,
541 &rtsp_st->nb_exclude_source_addrs);
542
543 get_word(buf1, sizeof(buf1), &p); /* port */
544 rtsp_st->sdp_port = atoi(buf1);
545
546 get_word(buf1, sizeof(buf1), &p); /* protocol */
547 if (!strcmp(buf1, "udp"))
548 rt->transport = RTSP_TRANSPORT_RAW;
549 else if (strstr(buf1, "/AVPF") || strstr(buf1, "/SAVPF"))
550 rtsp_st->feedback = 1;
551
552 /* XXX: handle list of formats */
553 get_word(buf1, sizeof(buf1), &p); /* format list */
554 rtsp_st->sdp_payload_type = atoi(buf1);
555
556 if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) {
557 /* no corresponding stream */
558 if (rt->transport == RTSP_TRANSPORT_RAW) {
559 if (CONFIG_RTPDEC && !rt->ts)
560 rt->ts = avpriv_mpegts_parse_open(s);
561 } else {
562 const RTPDynamicProtocolHandler *handler;
563 handler = ff_rtp_handler_find_by_id(
564 rtsp_st->sdp_payload_type, AVMEDIA_TYPE_DATA);
565 init_rtp_handler(handler, rtsp_st, NULL);
566 finalize_rtp_handler_init(s, rtsp_st, NULL);
567 }
568 } else if (rt->server_type == RTSP_SERVER_WMS &&
569 codec_type == AVMEDIA_TYPE_DATA) {
570 /* RTX stream, a stream that carries all the other actual
571 * audio/video streams. Don't expose this to the callers. */
572 } else {
573 st = avformat_new_stream(s, NULL);
574 if (!st)
575 return;
576 st->id = rt->nb_rtsp_streams - 1;
577 rtsp_st->stream_index = st->index;
578 st->codecpar->codec_type = codec_type;
579 if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) {
580 const RTPDynamicProtocolHandler *handler;
581 /* if standard payload type, we can find the codec right now */
582 ff_rtp_get_codec_info(st->codecpar, rtsp_st->sdp_payload_type);
583 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
584 st->codecpar->sample_rate > 0)
585 avpriv_set_pts_info(st, 32, 1, st->codecpar->sample_rate);
586 /* Even static payload types may need a custom depacketizer */
587 handler = ff_rtp_handler_find_by_id(
588 rtsp_st->sdp_payload_type, st->codecpar->codec_type);
589 init_rtp_handler(handler, rtsp_st, st);
590 finalize_rtp_handler_init(s, rtsp_st, st);
591 }
592 if (rt->default_lang[0])
593 av_dict_set(&st->metadata, "language", rt->default_lang, 0);
594 }
595 /* put a default control url */
596 av_strlcpy(rtsp_st->control_url, rt->control_uri,
597 sizeof(rtsp_st->control_url));
598 break;
599 case 'a':
600 if (av_strstart(p, "control:", &p)) {
601 if (rt->nb_rtsp_streams == 0) {
602 if (!strncmp(p, "rtsp://", 7))
603 av_strlcpy(rt->control_uri, p,
604 sizeof(rt->control_uri));
605 } else {
606 char proto[32];
607 /* get the control url */
608 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
609
610 /* XXX: may need to add full url resolution */
611 av_url_split(proto, sizeof(proto), NULL, 0, NULL, 0,
612 NULL, NULL, 0, p);
613 if (proto[0] == '\0') {
614 /* relative control URL */
615 size_t len = strlen(rtsp_st->control_url);
616 if (len == 0 || rtsp_st->control_url[len - 1] != '/')
617 av_strlcat(rtsp_st->control_url, "/",
618 sizeof(rtsp_st->control_url));
619 av_strlcat(rtsp_st->control_url, p,
620 sizeof(rtsp_st->control_url));
621 } else
622 av_strlcpy(rtsp_st->control_url, p,
623 sizeof(rtsp_st->control_url));
624 }
625 } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) {
626 /* NOTE: rtpmap is only supported AFTER the 'm=' tag */
627 get_word(buf1, sizeof(buf1), &p);
628 payload_type = atoi(buf1);
629 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
630 if (rtsp_st->stream_index >= 0) {
631 st = s->streams[rtsp_st->stream_index];
632 sdp_parse_rtpmap(s, st, rtsp_st, payload_type, p);
633 }
634 s1->seen_rtpmap = 1;
635 if (s1->seen_fmtp) {
636 parse_fmtp(s, rt, payload_type, s1->delayed_fmtp);
637 }
638 } else if (av_strstart(p, "fmtp:", &p) ||
639 av_strstart(p, "framesize:", &p)) {
640 // let dynamic protocol handlers have a stab at the line.
641 get_word(buf1, sizeof(buf1), &p);
642 payload_type = atoi(buf1);
643 if (s1->seen_rtpmap) {
644 parse_fmtp(s, rt, payload_type, buf);
645 } else {
646 s1->seen_fmtp = 1;
647 av_strlcpy(s1->delayed_fmtp, buf, sizeof(s1->delayed_fmtp));
648 }
649 } else if (av_strstart(p, "framerate:", &p) && s->nb_streams > 0) {
650 // RFC 8866
651 double framerate;
652 if (av_sscanf(p, "%lf%c", &framerate, &(char){0}) == 1) {
653 st = s->streams[s->nb_streams - 1];
654 st->avg_frame_rate = av_d2q(framerate, INT_MAX);
655 }
656 } else if (av_strstart(p, "ssrc:", &p) && s->nb_streams > 0) {
657 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
658 get_word(buf1, sizeof(buf1), &p);
659 rtsp_st->ssrc = strtoll(buf1, NULL, 10);
660 } else if (av_strstart(p, "range:", &p)) {
661 int64_t start, end;
662
663 // this is so that seeking on a streamed file can work.
664 rtsp_parse_range_npt(p, &start, &end);
665 s->start_time = start;
666 /* AV_NOPTS_VALUE means live broadcast (and can't seek) */
667 if (end != AV_NOPTS_VALUE)
668 s->duration = end - start;
669 } else if (av_strstart(p, "lang:", &p)) {
670 if (s->nb_streams > 0) {
671 get_word(buf1, sizeof(buf1), &p);
672 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
673 if (rtsp_st->stream_index >= 0) {
674 st = s->streams[rtsp_st->stream_index];
675 av_dict_set(&st->metadata, "language", buf1, 0);
676 }
677 } else
678 get_word(rt->default_lang, sizeof(rt->default_lang), &p);
679 } else if (av_strstart(p, "IsRealDataType:integer;",&p)) {
680 if (atoi(p) == 1)
681 rt->transport = RTSP_TRANSPORT_RDT;
682 } else if (av_strstart(p, "SampleRate:integer;", &p) &&
683 s->nb_streams > 0) {
684 st = s->streams[s->nb_streams - 1];
685 st->codecpar->sample_rate = atoi(p);
686 } else if (av_strstart(p, "crypto:", &p) && s->nb_streams > 0) {
687 // RFC 4568
688 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
689 get_word(buf1, sizeof(buf1), &p); // ignore tag
690 get_word(rtsp_st->crypto_suite, sizeof(rtsp_st->crypto_suite), &p);
691 p += strspn(p, SPACE_CHARS);
692 if (av_strstart(p, "inline:", &p))
693 get_word(rtsp_st->crypto_params, sizeof(rtsp_st->crypto_params), &p);
694 } else if (av_strstart(p, "source-filter:", &p)) {
695 int exclude = 0;
696 get_word(buf1, sizeof(buf1), &p);
697 if (strcmp(buf1, "incl") && strcmp(buf1, "excl"))
698 return;
699 exclude = !strcmp(buf1, "excl");
700
701 get_word(buf1, sizeof(buf1), &p);
702 if (strcmp(buf1, "IN") != 0)
703 return;
704 get_word(buf1, sizeof(buf1), &p);
705 if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6") && strcmp(buf1, "*"))
706 return;
707 // not checking that the destination address actually matches or is wildcard
708 get_word(buf1, sizeof(buf1), &p);
709
710 while (*p != '\0') {
711 rtsp_src = av_mallocz(sizeof(*rtsp_src));
712 if (!rtsp_src)
713 return;
714 get_word(rtsp_src->addr, sizeof(rtsp_src->addr), &p);
715 if (exclude) {
716 if (s->nb_streams == 0) {
717 dynarray_add(&s1->default_exclude_source_addrs, &s1->nb_default_exclude_source_addrs, rtsp_src);
718 } else {
719 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
720 dynarray_add(&rtsp_st->exclude_source_addrs, &rtsp_st->nb_exclude_source_addrs, rtsp_src);
721 }
722 } else {
723 if (s->nb_streams == 0) {
724 dynarray_add(&s1->default_include_source_addrs, &s1->nb_default_include_source_addrs, rtsp_src);
725 } else {
726 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
727 dynarray_add(&rtsp_st->include_source_addrs, &rtsp_st->nb_include_source_addrs, rtsp_src);
728 }
729 }
730 }
731 } else {
732 if (rt->server_type == RTSP_SERVER_WMS)
733 ff_wms_parse_sdp_a_line(s, p);
734 if (s->nb_streams > 0) {
735 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
736
737 if (rt->server_type == RTSP_SERVER_REAL)
738 ff_real_parse_sdp_a_line(s, rtsp_st->stream_index, p);
739
740 if (rtsp_st->dynamic_handler &&
741 rtsp_st->dynamic_handler->parse_sdp_a_line)
742 rtsp_st->dynamic_handler->parse_sdp_a_line(s,
743 rtsp_st->stream_index,
744 rtsp_st->dynamic_protocol_context, buf);
745 }
746 }
747 break;
748 }
749}
750
751int ff_sdp_parse(AVFormatContext *s, const char *content)
752{
753 const char *p;
754 int letter, i;
755 char buf[SDP_MAX_SIZE], *q;
756 SDPParseState sdp_parse_state = { { 0 } }, *s1 = &sdp_parse_state;
757
758 s->duration = AV_NOPTS_VALUE;
759
760 p = content;
761 for (;;) {
762 p += strspn(p, SPACE_CHARS);
763 letter = *p;
764 if (letter == '\0')
765 break;
766 p++;
767 if (*p != '=')
768 goto next_line;
769 p++;
770 /* get the content */
771 q = buf;
772 while (*p != '\n' && *p != '\r' && *p != '\0') {
773 if ((q - buf) < sizeof(buf) - 1)
774 *q++ = *p;
775 p++;
776 }
777 *q = '\0';
778 sdp_parse_line(s, s1, letter, buf);
779 next_line:
780 while (*p != '\n' && *p != '\0')
781 p++;
782 if (*p == '\n')
783 p++;
784 }
785
786 for (i = 0; i < s1->nb_default_include_source_addrs; i++)
787 av_freep(&s1->default_include_source_addrs[i]);
788 av_freep(&s1->default_include_source_addrs);
789 for (i = 0; i < s1->nb_default_exclude_source_addrs; i++)
790 av_freep(&s1->default_exclude_source_addrs[i]);
791 av_freep(&s1->default_exclude_source_addrs);
792
793 if (s->duration == AV_NOPTS_VALUE)
794 s->ctx_flags |= AVFMTCTX_UNSEEKABLE;
795
796 return 0;
797}
798#endif /* CONFIG_RTPDEC */
799
800void ff_rtsp_undo_setup(AVFormatContext *s, int send_packets)
801{
802 RTSPState *rt = s->priv_data;
803 int i;
804
805 rt->stored_msg.expected_seq = -1;
806 for (i = 0; i < rt->nb_rtsp_streams; i++) {
807 RTSPStream *rtsp_st = rt->rtsp_streams[i];
808 if (!rtsp_st)
809 continue;
810 if (rtsp_st->transport_priv) {
811 if (s->oformat) {
812 AVFormatContext *rtpctx = rtsp_st->transport_priv;
813 av_write_trailer(rtpctx);
814 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
815 if (CONFIG_RTSP_MUXER && rtpctx->pb && send_packets)
816 ff_rtsp_tcp_write_packet(s, rtsp_st);
817 ffio_free_dyn_buf(&rtpctx->pb);
818 } else {
819 avio_closep(&rtpctx->pb);
820 }
821 avformat_free_context(rtpctx);
822 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RDT)
823 ff_rdt_parse_close(rtsp_st->transport_priv);
824 else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RTP)
825 ff_rtp_parse_close(rtsp_st->transport_priv);
826 }
827 rtsp_st->transport_priv = NULL;
828 ffurl_closep(&rtsp_st->rtp_handle);
829 }
830}
831
832/* close and free RTSP streams */
833void ff_rtsp_close_streams(AVFormatContext *s)
834{
835 RTSPState *rt = s->priv_data;
836 int i, j;
837 RTSPStream *rtsp_st;
838
839 ff_rtsp_undo_setup(s, 0);
840 for (i = 0; i < rt->nb_rtsp_streams; i++) {
841 rtsp_st = rt->rtsp_streams[i];
842 if (rtsp_st) {
843 if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context) {
844 if (rtsp_st->dynamic_handler->close)
845 rtsp_st->dynamic_handler->close(
846 rtsp_st->dynamic_protocol_context);
847 av_free(rtsp_st->dynamic_protocol_context);
848 }
849 for (j = 0; j < rtsp_st->nb_include_source_addrs; j++)
850 av_freep(&rtsp_st->include_source_addrs[j]);
851 av_freep(&rtsp_st->include_source_addrs);
852 for (j = 0; j < rtsp_st->nb_exclude_source_addrs; j++)
853 av_freep(&rtsp_st->exclude_source_addrs[j]);
854 av_freep(&rtsp_st->exclude_source_addrs);
855
856 av_freep(&rtsp_st);
857 }
858 }
859 av_freep(&rt->rtsp_streams);
860 if (rt->asf_ctx) {
861 avformat_close_input(&rt->asf_ctx);
862 }
863 if (CONFIG_RTPDEC && rt->ts)
864 avpriv_mpegts_parse_close(rt->ts);
865 av_freep(&rt->p);
866 av_freep(&rt->recvbuf);
867}
868
869int ff_rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
870{
871 RTSPState *rt = s->priv_data;
872 AVStream *st = NULL;
873 int reordering_queue_size = rt->reordering_queue_size;
874 if (reordering_queue_size < 0) {
875 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP || !s->max_delay)
876 reordering_queue_size = 0;
877 else
878 reordering_queue_size = RTP_REORDER_QUEUE_DEFAULT_SIZE;
879 }
880
881 /* open the RTP context */
882 if (rtsp_st->stream_index >= 0)
883 st = s->streams[rtsp_st->stream_index];
884 if (!st)
885 s->ctx_flags |= AVFMTCTX_NOHEADER;
886
887 if (CONFIG_RTSP_MUXER && s->oformat && st) {
888 int ret = ff_rtp_chain_mux_open((AVFormatContext **)&rtsp_st->transport_priv,
889 s, st, rtsp_st->rtp_handle,
890 rt->pkt_size,
891 rtsp_st->stream_index);
892 /* Ownership of rtp_handle is passed to the rtp mux context */
893 rtsp_st->rtp_handle = NULL;
894 if (ret < 0)
895 return ret;
896 st->time_base = ((AVFormatContext*)rtsp_st->transport_priv)->streams[0]->time_base;
897 } else if (rt->transport == RTSP_TRANSPORT_RAW) {
898 return 0; // Don't need to open any parser here
899 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RDT && st)
900 rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index,
901 rtsp_st->dynamic_protocol_context,
902 rtsp_st->dynamic_handler);
903 else if (CONFIG_RTPDEC)
904 rtsp_st->transport_priv = ff_rtp_parse_open(s, st,
905 rtsp_st->sdp_payload_type,
906 reordering_queue_size);
907
908 if (!rtsp_st->transport_priv) {
909 return AVERROR(ENOMEM);
910 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RTP &&
911 s->iformat) {
912 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
913 rtpctx->ssrc = rtsp_st->ssrc;
914 if (rtsp_st->dynamic_handler) {
915 ff_rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv,
916 rtsp_st->dynamic_protocol_context,
917 rtsp_st->dynamic_handler);
918 }
919 if (rtsp_st->crypto_suite[0]) {
920 int ret = ff_rtp_parse_set_crypto(rtsp_st->transport_priv,
921 rtsp_st->crypto_suite,
922 rtsp_st->crypto_params);
923 if (ret < 0) {
924 av_log(s, AV_LOG_ERROR,
925 "SRTP setup failed for suite '%s'\n",
926 rtsp_st->crypto_suite);
927 return ret;
928 }
929 }
930 }
931
932 return 0;
933}
934
935#if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
936static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
937{
938 const char *q;
939 char *p;
940 int v;
941
942 q = *pp;
943 q += strspn(q, SPACE_CHARS);
944 v = strtol(q, &p, 10);
945 if (*p == '-') {
946 p++;
947 *min_ptr = v;
948 v = strtol(p, &p, 10);
949 *max_ptr = v;
950 } else {
951 *min_ptr = v;
952 *max_ptr = v;
953 }
954 *pp = p;
955}
956
957/* XXX: only one transport specification is parsed */
958static void rtsp_parse_transport(AVFormatContext *s,
959 RTSPMessageHeader *reply, const char *p)
960{
961 char transport_protocol[16];
962 char profile[16];
963 char lower_transport[16];
964 char parameter[16];
965 RTSPTransportField *th;
966 char buf[256];
967
968 reply->nb_transports = 0;
969
970 for (;;) {
971 p += strspn(p, SPACE_CHARS);
972 if (*p == '\0')
973 break;
974
975 th = &reply->transports[reply->nb_transports];
976
977 get_word_sep(transport_protocol, sizeof(transport_protocol),
978 "/", &p);
979 if (!av_strcasecmp (transport_protocol, "rtp")) {
980 get_word_sep(profile, sizeof(profile), "/;,", &p);
981 lower_transport[0] = '\0';
982 /* rtp/avp/<protocol> */
983 if (*p == '/') {
984 get_word_sep(lower_transport, sizeof(lower_transport),
985 ";,", &p);
986 }
987 th->transport = RTSP_TRANSPORT_RTP;
988 } else if (!av_strcasecmp (transport_protocol, "x-pn-tng") ||
989 !av_strcasecmp (transport_protocol, "x-real-rdt")) {
990 /* x-pn-tng/<protocol> */
991 get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p);
992 profile[0] = '\0';
993 th->transport = RTSP_TRANSPORT_RDT;
994 } else if (!av_strcasecmp(transport_protocol, "raw")) {
995 get_word_sep(profile, sizeof(profile), "/;,", &p);
996 lower_transport[0] = '\0';
997 /* raw/raw/<protocol> */
998 if (*p == '/') {
999 get_word_sep(lower_transport, sizeof(lower_transport),
1000 ";,", &p);
1001 }
1002 th->transport = RTSP_TRANSPORT_RAW;
1003 } else {
1004 break;
1005 }
1006 if (!av_strcasecmp(lower_transport, "TCP"))
1007 th->lower_transport = RTSP_LOWER_TRANSPORT_TCP;
1008 else
1009 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP;
1010
1011 if (*p == ';')
1012 p++;
1013 /* get each parameter */
1014 while (*p != '\0' && *p != ',') {
1015 get_word_sep(parameter, sizeof(parameter), "=;,", &p);
1016 if (!strcmp(parameter, "port")) {
1017 if (*p == '=') {
1018 p++;
1019 rtsp_parse_range(&th->port_min, &th->port_max, &p);
1020 }
1021 } else if (!strcmp(parameter, "client_port")) {
1022 if (*p == '=') {
1023 p++;
1024 rtsp_parse_range(&th->client_port_min,
1025 &th->client_port_max, &p);
1026 }
1027 } else if (!strcmp(parameter, "server_port")) {
1028 if (*p == '=') {
1029 p++;
1030 rtsp_parse_range(&th->server_port_min,
1031 &th->server_port_max, &p);
1032 }
1033 } else if (!strcmp(parameter, "interleaved")) {
1034 if (*p == '=') {
1035 p++;
1036 rtsp_parse_range(&th->interleaved_min,
1037 &th->interleaved_max, &p);
1038 }
1039 } else if (!strcmp(parameter, "multicast")) {
1040 if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP)
1041 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST;
1042 } else if (!strcmp(parameter, "ttl")) {
1043 if (*p == '=') {
1044 char *end;
1045 p++;
1046 th->ttl = strtol(p, &end, 10);
1047 p = end;
1048 }
1049 } else if (!strcmp(parameter, "destination")) {
1050 if (*p == '=') {
1051 p++;
1052 get_word_sep(buf, sizeof(buf), ";,", &p);
1053 get_sockaddr(s, buf, &th->destination);
1054 }
1055 } else if (!strcmp(parameter, "source")) {
1056 if (*p == '=') {
1057 p++;
1058 get_word_sep(buf, sizeof(buf), ";,", &p);
1059 av_strlcpy(th->source, buf, sizeof(th->source));
1060 }
1061 } else if (!strcmp(parameter, "mode")) {
1062 if (*p == '=') {
1063 p++;
1064 get_word_sep(buf, sizeof(buf), ";, ", &p);
1065 if (!av_strcasecmp(buf, "record") ||
1066 !av_strcasecmp(buf, "receive"))
1067 th->mode_record = 1;
1068 }
1069 }
1070
1071 while (*p != ';' && *p != '\0' && *p != ',')
1072 p++;
1073 if (*p == ';')
1074 p++;
1075 }
1076 if (*p == ',')
1077 p++;
1078
1079 reply->nb_transports++;
1080 if (reply->nb_transports >= RTSP_MAX_TRANSPORTS)
1081 break;
1082 }
1083}
1084
1085static void handle_rtp_info(RTSPState *rt, const char *url,
1086 uint32_t seq, uint32_t rtptime)
1087{
1088 int i;
1089 if (!rtptime || !url[0])
1090 return;
1091 if (rt->transport != RTSP_TRANSPORT_RTP)
1092 return;
1093 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1094 RTSPStream *rtsp_st = rt->rtsp_streams[i];
1095 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
1096 if (!rtpctx)
1097 continue;
1098 if (!strcmp(rtsp_st->control_url, url)) {
1099 rtpctx->base_timestamp = rtptime;
1100 break;
1101 }
1102 }
1103}
1104
1105static void rtsp_parse_rtp_info(RTSPState *rt, const char *p)
1106{
1107 int read = 0;
1108 char key[20], value[MAX_URL_SIZE], url[MAX_URL_SIZE] = "";
1109 uint32_t seq = 0, rtptime = 0;
1110
1111 for (;;) {
1112 p += strspn(p, SPACE_CHARS);
1113 if (!*p)
1114 break;
1115 get_word_sep(key, sizeof(key), "=", &p);
1116 if (*p != '=')
1117 break;
1118 p++;
1119 get_word_sep(value, sizeof(value), ";, ", &p);
1120 read++;
1121 if (!strcmp(key, "url"))
1122 av_strlcpy(url, value, sizeof(url));
1123 else if (!strcmp(key, "seq"))
1124 seq = strtoul(value, NULL, 10);
1125 else if (!strcmp(key, "rtptime"))
1126 rtptime = strtoul(value, NULL, 10);
1127 if (*p == ',') {
1128 handle_rtp_info(rt, url, seq, rtptime);
1129 url[0] = '\0';
1130 seq = rtptime = 0;
1131 read = 0;
1132 }
1133 if (*p)
1134 p++;
1135 }
1136 if (read > 0)
1137 handle_rtp_info(rt, url, seq, rtptime);
1138}
1139
1140void ff_rtsp_parse_line(AVFormatContext *s,
1141 RTSPMessageHeader *reply, const char *buf,
1142 RTSPState *rt, const char *method)
1143{
1144 const char *p;
1145
1146 /* NOTE: we do case independent match for broken servers */
1147 p = buf;
1148 if (av_stristart(p, "Session:", &p)) {
1149 int t;
1150 get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
1151 if (av_stristart(p, ";timeout=", &p) &&
1152 (t = strtol(p, NULL, 10)) > 0) {
1153 reply->timeout = t;
1154 }
1155 } else if (av_stristart(p, "Content-Length:", &p)) {
1156 reply->content_length = strtol(p, NULL, 10);
1157 } else if (av_stristart(p, "Transport:", &p)) {
1158 rtsp_parse_transport(s, reply, p);
1159 } else if (av_stristart(p, "CSeq:", &p)) {
1160 reply->seq = strtol(p, NULL, 10);
1161 } else if (av_stristart(p, "Range:", &p)) {
1162 rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
1163 } else if (av_stristart(p, "RealChallenge1:", &p)) {
1164 p += strspn(p, SPACE_CHARS);
1165 av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge));
1166 } else if (av_stristart(p, "Server:", &p)) {
1167 p += strspn(p, SPACE_CHARS);
1168 av_strlcpy(reply->server, p, sizeof(reply->server));
1169 } else if (av_stristart(p, "Notice:", &p) ||
1170 av_stristart(p, "X-Notice:", &p)) {
1171 reply->notice = strtol(p, NULL, 10);
1172 } else if (av_stristart(p, "Location:", &p)) {
1173 p += strspn(p, SPACE_CHARS);
1174 av_strlcpy(reply->location, p , sizeof(reply->location));
1175 } else if (av_stristart(p, "WWW-Authenticate:", &p) && rt) {
1176 p += strspn(p, SPACE_CHARS);
1177 ff_http_auth_handle_header(&rt->auth_state, "WWW-Authenticate", p);
1178 } else if (av_stristart(p, "Authentication-Info:", &p) && rt) {
1179 p += strspn(p, SPACE_CHARS);
1180 ff_http_auth_handle_header(&rt->auth_state, "Authentication-Info", p);
1181 } else if (av_stristart(p, "Content-Base:", &p) && rt) {
1182 p += strspn(p, SPACE_CHARS);
1183 if (method && !strcmp(method, "DESCRIBE"))
1184 av_strlcpy(rt->control_uri, p , sizeof(rt->control_uri));
1185 } else if (av_stristart(p, "RTP-Info:", &p) && rt) {
1186 p += strspn(p, SPACE_CHARS);
1187 if (method && !strcmp(method, "PLAY"))
1188 rtsp_parse_rtp_info(rt, p);
1189 } else if (av_stristart(p, "Public:", &p) && rt) {
1190 if (strstr(p, "GET_PARAMETER") &&
1191 method && !strcmp(method, "OPTIONS"))
1192 rt->get_parameter_supported = 1;
1193 } else if (av_stristart(p, "x-Accept-Dynamic-Rate:", &p) && rt) {
1194 p += strspn(p, SPACE_CHARS);
1195 rt->accept_dynamic_rate = atoi(p);
1196 } else if (av_stristart(p, "Content-Type:", &p)) {
1197 p += strspn(p, SPACE_CHARS);
1198 av_strlcpy(reply->content_type, p, sizeof(reply->content_type));
1199 } else if (av_stristart(p, "com.ses.streamID:", &p)) {
1200 p += strspn(p, SPACE_CHARS);
1201 av_strlcpy(reply->stream_id, p, sizeof(reply->stream_id));
1202 }
1203}
1204
1205/* skip a RTP/TCP interleaved packet */
1206int ff_rtsp_skip_packet(AVFormatContext *s)
1207{
1208 RTSPState *rt = s->priv_data;
1209 int ret, len, len1;
1210 uint8_t buf[MAX_URL_SIZE];
1211
1212 rt->pending_packet = 0;
1213 ret = ffurl_read_complete(rt->rtsp_hd, buf, 3);
1214 if (ret != 3)
1215 return ret < 0 ? ret : AVERROR(EIO);
1216 len = AV_RB16(buf + 1);
1217
1218 av_log(s, AV_LOG_TRACE, "skipping RTP packet len=%d\n", len);
1219
1220 /* skip payload */
1221 while (len > 0) {
1222 len1 = len;
1223 if (len1 > sizeof(buf))
1224 len1 = sizeof(buf);
1225 ret = ffurl_read_complete(rt->rtsp_hd, buf, len1);
1226 if (ret != len1)
1227 return ret < 0 ? ret : AVERROR(EIO);
1228 len -= len1;
1229 }
1230
1231 return 0;
1232}
1233
1234static int ff_rtsp_read_reply_internal(AVFormatContext *s,
1235 RTSPMessageHeader *reply,
1236 unsigned char **content_ptr,
1237 int return_on_interleaved_data,
1238 const char *method)
1239{
1240 RTSPState *rt = s->priv_data;
1241 char buf[MAX_URL_SIZE], buf1[MAX_URL_SIZE], *q;
1242 unsigned char ch;
1243 const char *p;
1244 int ret, content_length, line_count, request;
1245 unsigned char *content;
1246
1247start:
1248 line_count = 0;
1249 request = 0;
1250 content = NULL;
1251 memset(reply, 0, sizeof(*reply));
1252
1253 /* parse reply (XXX: use buffers) */
1254 rt->last_reply[0] = '\0';
1255 for (;;) {
1256 q = buf;
1257 for (;;) {
1258 ret = ffurl_read_complete(rt->rtsp_hd, &ch, 1);
1259 if (ret != 1) {
1260 ret = (ret < 0) ? ret : AVERROR(EIO);
1261 av_log(s, AV_LOG_WARNING, "Failed reading RTSP data: %s\n", av_err2str(ret));
1262 return ret;
1263 }
1264 av_log(s, AV_LOG_TRACE, "ret=%d c=%02x [%c]\n", ret, ch, ch);
1265 if (ch == '\n')
1266 break;
1267 if (ch == '$' && q == buf) {
1268 if (return_on_interleaved_data) {
1269 rt->pending_packet = 1;
1270 return 1;
1271 } else {
1272 ret = ff_rtsp_skip_packet(s);
1273 if (ret < 0)
1274 return ret;
1275 }
1276 } else if (ch != '\r') {
1277 if ((q - buf) < sizeof(buf) - 1)
1278 *q++ = ch;
1279 }
1280 }
1281 *q = '\0';
1282
1283 av_log(s, AV_LOG_TRACE, "line='%s'\n", buf);
1284
1285 /* test if last line */
1286 if (buf[0] == '\0')
1287 break;
1288 p = buf;
1289 if (line_count == 0) {
1290 /* get reply code */
1291 get_word(buf1, sizeof(buf1), &p);
1292 if (!strncmp(buf1, "RTSP/", 5)) {
1293 get_word(buf1, sizeof(buf1), &p);
1294 reply->status_code = atoi(buf1);
1295 p += strspn(p, SPACE_CHARS);
1296 av_strlcpy(reply->reason, p, sizeof(reply->reason));
1297 } else {
1298 av_strlcpy(reply->reason, buf1, sizeof(reply->reason)); // method
1299 get_word(buf1, sizeof(buf1), &p); // object
1300 request = 1;
1301 }
1302 } else {
1303 ff_rtsp_parse_line(s, reply, p, rt, method);
1304 av_strlcat(rt->last_reply, p, sizeof(rt->last_reply));
1305 av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply));
1306 }
1307 line_count++;
1308 }
1309
1310 if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0' && !request)
1311 av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id));
1312
1313 content_length = reply->content_length;
1314 if (content_length > 0) {
1315 /* leave some room for a trailing '\0' (useful for simple parsing) */
1316 content = av_malloc(content_length + 1);
1317 if (!content)
1318 return AVERROR(ENOMEM);
1319 if ((ret = ffurl_read_complete(rt->rtsp_hd, content, content_length)) != content_length) {
1320 av_freep(&content);
1321 return ret < 0 ? ret : AVERROR(EIO);
1322 }
1323 content[content_length] = '\0';
1324 }
1325 if (content_ptr)
1326 *content_ptr = content;
1327 else
1328 av_freep(&content);
1329
1330 if (request) {
1331 char buf[MAX_URL_SIZE];
1332 char base64buf[AV_BASE64_SIZE(sizeof(buf))];
1333 const char* ptr = buf;
1334
1335 if (!strcmp(reply->reason, "OPTIONS") ||
1336 !strcmp(reply->reason, "GET_PARAMETER")) {
1337 snprintf(buf, sizeof(buf), "RTSP/1.0 200 OK\r\n");
1338 if (reply->seq)
1339 av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", reply->seq);
1340 if (reply->session_id[0])
1341 av_strlcatf(buf, sizeof(buf), "Session: %s\r\n",
1342 reply->session_id);
1343 } else {
1344 snprintf(buf, sizeof(buf), "RTSP/1.0 501 Not Implemented\r\n");
1345 }
1346 av_strlcat(buf, "\r\n", sizeof(buf));
1347
1348 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1349 av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
1350 ptr = base64buf;
1351 }
1352 ffurl_write(rt->rtsp_hd_out, ptr, strlen(ptr));
1353
1354 rt->last_cmd_time = av_gettime_relative();
1355 /* Even if the request from the server had data, it is not the data
1356 * that the caller wants or expects. The memory could also be leaked
1357 * if the actual following reply has content data. */
1358 if (content_ptr)
1359 av_freep(content_ptr);
1360 /* If method is set, this is called from ff_rtsp_send_cmd,
1361 * where a reply to exactly this request is awaited. For
1362 * callers from within packet receiving, we just want to
1363 * return to the caller and go back to receiving packets. */
1364 if (method)
1365 goto start;
1366 return 0;
1367 }
1368
1369 if (rt->seq != reply->seq) {
1370 av_log(s, AV_LOG_WARNING, "CSeq %d expected, %d received.\n",
1371 rt->seq, reply->seq);
1372 }
1373
1374 /* EOS */
1375 if (reply->notice == 2101 /* End-of-Stream Reached */ ||
1376 reply->notice == 2104 /* Start-of-Stream Reached */ ||
1377 reply->notice == 2306 /* Continuous Feed Terminated */) {
1378 rt->state = RTSP_STATE_IDLE;
1379 } else if (reply->notice >= 4400 && reply->notice < 5500) {
1380 return AVERROR(EIO); /* data or server error */
1381 } else if (reply->notice == 2401 /* Ticket Expired */ ||
1382 (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ )
1383 return AVERROR(EPERM);
1384
1385 return 0;
1386}
1387
1388int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply,
1389 unsigned char **content_ptr,
1390 int return_on_interleaved_data, const char *method)
1391{
1392 int ret;
1393 RTSPState *rt = s->priv_data;
1394
1395 // If we returned on pending packet last time,
1396 // do not try to read again, as it would corrupt
1397 // the state due to the already consumed '$'.
1398 if (rt->pending_packet) {
1399 if (return_on_interleaved_data)
1400 return 1;
1401
1402 ret = ff_rtsp_skip_packet(s);
1403 if (ret < 0)
1404 return ret;
1405 }
1406
1407 if (rt->stored_msg.expected_seq != -1) {
1408 RTSPMessageHeader header;
1409
1410 ret = ff_rtsp_read_reply_internal(s, &header,
1411 &rt->stored_msg.body, return_on_interleaved_data, NULL);
1412 if (ret != 0)
1413 return ret;
1414
1415 if (rt->stored_msg.expected_seq == header.seq) {
1416 // Got the expected reply, store it for later
1417 rt->stored_msg.expected_seq = -1;
1418 rt->stored_msg.header = av_calloc(1, sizeof(*rt->stored_msg.header));
1419 if (!rt->stored_msg.header) {
1420 av_freep(&rt->stored_msg.body);
1421 return AVERROR(ENOMEM);
1422 }
1423 memcpy(rt->stored_msg.header, &header, sizeof(header));
1424 } else {
1425 av_log(s, AV_LOG_WARNING, "Unexpected reply with seq %d, expected %d\n",
1426 header.seq, rt->stored_msg.expected_seq);
1427 av_freep(&rt->stored_msg.body);
1428 }
1429
1430 // Do not return here as we still need to read the reply
1431 // the caller was actually wanting to retrieve.
1432 }
1433
1434 return ff_rtsp_read_reply_internal(s, reply, content_ptr,
1435 return_on_interleaved_data, method);
1436}
1437
1438/**
1439 * Send a command to the RTSP server without waiting for the reply.
1440 *
1441 * @param s RTSP (de)muxer context
1442 * @param method the method for the request
1443 * @param url the target url for the request
1444 * @param headers extra header lines to include in the request
1445 * @param send_content if non-null, the data to send as request body content
1446 * @param send_content_length the length of the send_content data, or 0 if
1447 * send_content is null
1448 *
1449 * @return zero if success, nonzero otherwise
1450 */
1451int ff_rtsp_send_cmd_with_content_async(AVFormatContext *s,
1452 const char *method, const char *url,
1453 const char *headers,
1454 const unsigned char *send_content,
1455 int send_content_length)
1456{
1457 RTSPState *rt = s->priv_data;
1458 char buf[MAX_URL_SIZE], *out_buf;
1459 char base64buf[AV_BASE64_SIZE(sizeof(buf))];
1460
1461 if (!rt->rtsp_hd_out)
1462 return AVERROR(ENOTCONN);
1463
1464 /* Add in RTSP headers */
1465 out_buf = buf;
1466 rt->seq++;
1467 snprintf(buf, sizeof(buf), "%s %s RTSP/1.0\r\n", method, url);
1468 if (headers)
1469 av_strlcat(buf, headers, sizeof(buf));
1470 av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", rt->seq);
1471 av_strlcatf(buf, sizeof(buf), "User-Agent: %s\r\n", rt->user_agent);
1472 if (rt->session_id[0] != '\0' && (!headers ||
1473 !strstr(headers, "\nIf-Match:"))) {
1474 av_strlcatf(buf, sizeof(buf), "Session: %s\r\n", rt->session_id);
1475 }
1476 if (rt->auth[0]) {
1477 char *str = ff_http_auth_create_response(&rt->auth_state,
1478 rt->auth, url, method);
1479 if (str)
1480 av_strlcat(buf, str, sizeof(buf));
1481 av_free(str);
1482 }
1483 if (send_content_length > 0 && send_content)
1484 av_strlcatf(buf, sizeof(buf), "Content-Length: %d\r\n", send_content_length);
1485 av_strlcat(buf, "\r\n", sizeof(buf));
1486
1487 /* base64 encode rtsp if tunneling */
1488 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1489 av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
1490 out_buf = base64buf;
1491 }
1492
1493 av_log(s, AV_LOG_TRACE, "Sending:\n%s--\n", buf);
1494
1495 ffurl_write(rt->rtsp_hd_out, out_buf, strlen(out_buf));
1496 if (send_content_length > 0 && send_content) {
1497 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1498 avpriv_report_missing_feature(s, "Tunneling of RTSP requests with content data");
1499 return AVERROR_PATCHWELCOME;
1500 }
1501 ffurl_write(rt->rtsp_hd_out, send_content, send_content_length);
1502 }
1503 rt->last_cmd_time = av_gettime_relative();
1504
1505 return 0;
1506}
1507
1508int ff_rtsp_send_cmd_with_content_async_stored(AVFormatContext *s,
1509 const char *method, const char *url,
1510 const char *headers,
1511 const unsigned char *send_content,
1512 int send_content_length)
1513{
1514 RTSPState *rt = s->priv_data;
1515 int ret = ff_rtsp_send_cmd_with_content_async(s, method, url, headers,
1516 send_content, send_content_length);
1517 if (ret < 0)
1518 return ret;
1519
1520 rt->stored_msg.expected_seq = rt->seq;
1521 av_freep(&rt->stored_msg.header);
1522 av_freep(&rt->stored_msg.body);
1523 return 0;
1524}
1525
1526int ff_rtsp_send_cmd_async(AVFormatContext *s, const char *method,
1527 const char *url, const char *headers)
1528{
1529 return ff_rtsp_send_cmd_with_content_async(s, method, url, headers, NULL, 0);
1530}
1531
1532int ff_rtsp_send_cmd(AVFormatContext *s, const char *method, const char *url,
1533 const char *headers, RTSPMessageHeader *reply,
1534 unsigned char **content_ptr)
1535{
1536 return ff_rtsp_send_cmd_with_content(s, method, url, headers, reply,
1537 content_ptr, NULL, 0);
1538}
1539
1540int ff_rtsp_send_cmd_with_content(AVFormatContext *s,
1541 const char *method, const char *url,
1542 const char *header,
1543 RTSPMessageHeader *reply,
1544 unsigned char **content_ptr,
1545 const unsigned char *send_content,
1546 int send_content_length)
1547{
1548 RTSPState *rt = s->priv_data;
1549 HTTPAuthType cur_auth_type;
1550 int ret, attempts = 0;
1551
1552retry:
1553 cur_auth_type = rt->auth_state.auth_type;
1554 if ((ret = ff_rtsp_send_cmd_with_content_async(s, method, url, header,
1555 send_content,
1556 send_content_length)) < 0)
1557 return ret;
1558
1559 if ((ret = ff_rtsp_read_reply(s, reply, content_ptr, 0, method) ) < 0)
1560 return ret;
1561 attempts++;
1562
1563 if (reply->status_code == 401 &&
1564 (cur_auth_type == HTTP_AUTH_NONE || rt->auth_state.stale) &&
1565 rt->auth_state.auth_type != HTTP_AUTH_NONE && attempts < 2)
1566 goto retry;
1567
1568 if (reply->status_code > 400){
1569 av_log(s, AV_LOG_ERROR, "method %s failed: %d (%s)\n",
1570 method,
1571 reply->status_code,
1572 reply->reason);
1573 av_log(s, AV_LOG_DEBUG, "%s\n", rt->last_reply);
1574 }
1575
1576 return 0;
1577}
1578
1579int ff_rtsp_read_reply_async_stored(AVFormatContext *s, RTSPMessageHeader **reply,
1580 unsigned char **content_ptr)
1581{
1582 RTSPState *rt = s->priv_data;
1583 if (rt->stored_msg.header == NULL) {
1584 if (rt->stored_msg.expected_seq == -1)
1585 return AVERROR(EINVAL); // Reply to be stored was never requested
1586
1587 // Reply pending, tell caller to try again later
1588 return AVERROR(EAGAIN);
1589 }
1590
1591 if (reply)
1592 *reply = rt->stored_msg.header;
1593 else
1594 av_free(rt->stored_msg.header);
1595
1596 if (content_ptr)
1597 *content_ptr = rt->stored_msg.body;
1598 else
1599 av_free(rt->stored_msg.body);
1600
1601 rt->stored_msg.header = NULL;
1602 rt->stored_msg.body = NULL;
1603 return 0;
1604}
1605
1606int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
1607 int lower_transport, const char *real_challenge)
1608{
1609 RTSPState *rt = s->priv_data;
1610 int rtx = 0, j, i, err, interleave = 0, port_off = 0;
1611 RTSPStream *rtsp_st;
1612 RTSPMessageHeader reply1, *reply = &reply1;
1613 char cmd[MAX_URL_SIZE];
1614 const char *trans_pref;
1615
1616 memset(&reply1, 0, sizeof(reply1));
1617
1618 if (rt->transport == RTSP_TRANSPORT_RDT)
1619 trans_pref = "x-pn-tng";
1620 else if (rt->transport == RTSP_TRANSPORT_RAW)
1621 trans_pref = "RAW/RAW";
1622 else
1623 trans_pref = "RTP/AVP";
1624
1625 /* default timeout: 1 minute */
1626 rt->timeout = 60;
1627
1628 /* Choose a random starting offset within the first half of the
1629 * port range, to allow for a number of ports to try even if the offset
1630 * happens to be at the end of the random range. */
1631 if (rt->rtp_port_max - rt->rtp_port_min >= 4) {
1632 port_off = av_get_random_seed() % ((rt->rtp_port_max - rt->rtp_port_min)/2);
1633 /* even random offset */
1634 port_off -= port_off & 0x01;
1635 }
1636
1637 for (j = rt->rtp_port_min + port_off, i = 0; i < rt->nb_rtsp_streams; ++i) {
1638 char transport[MAX_URL_SIZE];
1639
1640 /*
1641 * WMS serves all UDP data over a single connection, the RTX, which
1642 * isn't necessarily the first in the SDP but has to be the first
1643 * to be set up, else the second/third SETUP will fail with a 461.
1644 */
1645 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
1646 rt->server_type == RTSP_SERVER_WMS) {
1647 if (i == 0) {
1648 /* rtx first */
1649 for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {
1650 int len = strlen(rt->rtsp_streams[rtx]->control_url);
1651 if (len >= 4 &&
1652 !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4,
1653 "/rtx"))
1654 break;
1655 }
1656 if (rtx == rt->nb_rtsp_streams)
1657 return -1; /* no RTX found */
1658 rtsp_st = rt->rtsp_streams[rtx];
1659 } else
1660 rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1];
1661 } else
1662 rtsp_st = rt->rtsp_streams[i];
1663
1664 /* RTP/UDP */
1665 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) {
1666 char buf[256];
1667
1668 if (rt->server_type == RTSP_SERVER_WMS && i > 1) {
1669 port = reply->transports[0].client_port_min;
1670 goto have_port;
1671 }
1672
1673 /* first try in specified port range */
1674 while (j + 1 <= rt->rtp_port_max) {
1675 AVDictionary *opts = map_to_opts(rt);
1676
1677 ff_url_join(buf, sizeof(buf), "rtp", NULL, host, -1,
1678 "?localrtpport=%d", j);
1679 /* we will use two ports per rtp stream (rtp and rtcp) */
1680 j += 2;
1681 err = ffurl_open_whitelist(&rtsp_st->rtp_handle, buf, AVIO_FLAG_READ_WRITE,
1682 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
1683
1684 av_dict_free(&opts);
1685
1686 if (!err)
1687 goto rtp_opened;
1688 }
1689 av_log(s, AV_LOG_ERROR, "Unable to open an input RTP port\n");
1690 err = AVERROR(EIO);
1691 goto fail;
1692
1693 rtp_opened:
1694 port = ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle);
1695 have_port:
1696 av_strlcpy(transport, trans_pref, sizeof(transport));
1697 av_strlcat(transport,
1698 rt->server_type == RTSP_SERVER_SATIP ? ";" : "/UDP;",
1699 sizeof(transport));
1700 if (rt->server_type != RTSP_SERVER_REAL)
1701 av_strlcat(transport, "unicast;", sizeof(transport));
1702 av_strlcatf(transport, sizeof(transport),
1703 "client_port=%d", port);
1704 if (rt->transport == RTSP_TRANSPORT_RTP &&
1705 !(rt->server_type == RTSP_SERVER_WMS && i > 0))
1706 av_strlcatf(transport, sizeof(transport), "-%d", port + 1);
1707 }
1708
1709 /* RTP/TCP */
1710 else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
1711 /* For WMS streams, the application streams are only used for
1712 * UDP. When trying to set it up for TCP streams, the server
1713 * will return an error. Therefore, we skip those streams. */
1714 if (rt->server_type == RTSP_SERVER_WMS &&
1715 (rtsp_st->stream_index < 0 ||
1716 s->streams[rtsp_st->stream_index]->codecpar->codec_type ==
1717 AVMEDIA_TYPE_DATA))
1718 continue;
1719 snprintf(transport, sizeof(transport) - 1,
1720 "%s/TCP;", trans_pref);
1721 if (rt->transport != RTSP_TRANSPORT_RDT)
1722 av_strlcat(transport, "unicast;", sizeof(transport));
1723 av_strlcatf(transport, sizeof(transport),
1724 "interleaved=%d-%d",
1725 interleave, interleave + 1);
1726 interleave += 2;
1727 }
1728
1729 else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) {
1730 snprintf(transport, sizeof(transport) - 1,
1731 "%s/UDP;multicast", trans_pref);
1732 } else {
1733 err = AVERROR(EINVAL);
1734 goto fail; // transport would be uninitialized
1735 }
1736
1737 if (s->oformat) {
1738 av_strlcat(transport, ";mode=record", sizeof(transport));
1739 } else if (rt->server_type == RTSP_SERVER_REAL ||
1740 rt->server_type == RTSP_SERVER_WMS)
1741 av_strlcat(transport, ";mode=play", sizeof(transport));
1742 snprintf(cmd, sizeof(cmd),
1743 "Transport: %s\r\n",
1744 transport);
1745 if (rt->accept_dynamic_rate)
1746 av_strlcat(cmd, "x-Dynamic-Rate: 0\r\n", sizeof(cmd));
1747 if (CONFIG_RTPDEC && i == 0 && rt->server_type == RTSP_SERVER_REAL) {
1748 char real_res[41], real_csum[9];
1749 ff_rdt_calc_response_and_checksum(real_res, real_csum,
1750 real_challenge);
1751 av_strlcatf(cmd, sizeof(cmd),
1752 "If-Match: %s\r\n"
1753 "RealChallenge2: %s, sd=%s\r\n",
1754 rt->session_id, real_res, real_csum);
1755 }
1756 ff_rtsp_send_cmd(s, "SETUP", rtsp_st->control_url, cmd, reply, NULL);
1757 if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) {
1758 err = 1;
1759 goto fail;
1760 } else if (reply->status_code != RTSP_STATUS_OK ||
1761 reply->nb_transports != 1) {
1762 err = ff_rtsp_averror(reply->status_code, AVERROR_INVALIDDATA);
1763 goto fail;
1764 }
1765
1766 if (rt->server_type == RTSP_SERVER_SATIP && reply->stream_id[0]) {
1767 char proto[128], host[128], path[512], auth[128];
1768 int port;
1769 av_url_split(proto, sizeof(proto), auth, sizeof(auth), host, sizeof(host),
1770 &port, path, sizeof(path), rt->control_uri);
1771 ff_url_join(rt->control_uri, sizeof(rt->control_uri), proto, NULL, host,
1772 port, "/stream=%s", reply->stream_id);
1773 }
1774
1775 /* XXX: same protocol for all streams is required */
1776 if (i > 0) {
1777 if (reply->transports[0].lower_transport != rt->lower_transport ||
1778 reply->transports[0].transport != rt->transport) {
1779 err = AVERROR_INVALIDDATA;
1780 goto fail;
1781 }
1782 } else {
1783 rt->lower_transport = reply->transports[0].lower_transport;
1784 rt->transport = reply->transports[0].transport;
1785 }
1786
1787 /* Fail if the server responded with another lower transport mode
1788 * than what we requested. */
1789 if (reply->transports[0].lower_transport != lower_transport) {
1790 av_log(s, AV_LOG_ERROR, "Nonmatching transport in server reply\n");
1791 err = AVERROR_INVALIDDATA;
1792 goto fail;
1793 }
1794
1795 switch(reply->transports[0].lower_transport) {
1796 case RTSP_LOWER_TRANSPORT_TCP:
1797 rtsp_st->interleaved_min = reply->transports[0].interleaved_min;
1798 rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
1799 break;
1800
1801 case RTSP_LOWER_TRANSPORT_UDP: {
1802 char url[MAX_URL_SIZE], options[30] = "";
1803 const char *peer = host;
1804
1805 if (rt->rtsp_flags & RTSP_FLAG_FILTER_SRC)
1806 av_strlcpy(options, "?connect=1", sizeof(options));
1807 /* Use source address if specified */
1808 if (reply->transports[0].source[0])
1809 peer = reply->transports[0].source;
1810 ff_url_join(url, sizeof(url), "rtp", NULL, peer,
1811 reply->transports[0].server_port_min, "%s", options);
1812 if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
1813 ff_rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
1814 err = AVERROR_INVALIDDATA;
1815 goto fail;
1816 }
1817 break;
1818 }
1819 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: {
1820 char url[MAX_URL_SIZE], namebuf[50], optbuf[20] = "";
1821 struct sockaddr_storage addr;
1822 int port, ttl;
1823 AVDictionary *opts = map_to_opts(rt);
1824
1825 if (reply->transports[0].destination.ss_family) {
1826 addr = reply->transports[0].destination;
1827 port = reply->transports[0].port_min;
1828 ttl = reply->transports[0].ttl;
1829 } else {
1830 addr = rtsp_st->sdp_ip;
1831 port = rtsp_st->sdp_port;
1832 ttl = rtsp_st->sdp_ttl;
1833 }
1834 if (ttl > 0)
1835 snprintf(optbuf, sizeof(optbuf), "?ttl=%d", ttl);
1836 getnameinfo((struct sockaddr*) &addr, sizeof(addr),
1837 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
1838 ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
1839 port, "%s", optbuf);
1840 err = ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
1841 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
1842 av_dict_free(&opts);
1843
1844 if (err < 0) {
1845 err = AVERROR_INVALIDDATA;
1846 goto fail;
1847 }
1848 break;
1849 }
1850 }
1851
1852 if ((err = ff_rtsp_open_transport_ctx(s, rtsp_st)))
1853 goto fail;
1854 }
1855
1856 if (rt->nb_rtsp_streams && reply->timeout > 0)
1857 rt->timeout = reply->timeout;
1858
1859 if (rt->server_type == RTSP_SERVER_REAL)
1860 rt->need_subscription = 1;
1861
1862 return 0;
1863
1864fail:
1865 ff_rtsp_undo_setup(s, 0);
1866 return err;
1867}
1868
1869void ff_rtsp_close_connections(AVFormatContext *s)
1870{
1871 RTSPState *rt = s->priv_data;
1872 if (rt->rtsp_hd_out != rt->rtsp_hd)
1873 ffurl_closep(&rt->rtsp_hd_out);
1874 rt->rtsp_hd_out = NULL;
1875 ffurl_closep(&rt->rtsp_hd);
1876}
1877
1878static int rtsp_url_same_origin(const char *url1, const char *url2)
1879{
1880 char proto1[128], proto2[128];
1881 char host1[1024], host2[1024];
1882 int port1, port2;
1883
1884 av_url_split(proto1, sizeof(proto1), NULL, 0, host1, sizeof(host1),
1885 &port1, NULL, 0, url1);
1886 av_url_split(proto2, sizeof(proto2), NULL, 0, host2, sizeof(host2),
1887 &port2, NULL, 0, url2);
1888
1889 if (!proto1[0] || !proto2[0] || !host1[0] || !host2[0])
1890 return 0;
1891
1892 if (port1 < 0)
1893 port1 = !av_strcasecmp(proto1, "rtsps") ? RTSPS_DEFAULT_PORT
1894 : RTSP_DEFAULT_PORT;
1895 if (port2 < 0)
1896 port2 = !av_strcasecmp(proto2, "rtsps") ? RTSPS_DEFAULT_PORT
1897 : RTSP_DEFAULT_PORT;
1898
1899 return !av_strcasecmp(proto1, proto2) &&
1900 !av_strcasecmp(host1, host2) &&
1901 port1 == port2;
1902}
1903
1904int ff_rtsp_connect(AVFormatContext *s)
1905{
1906 RTSPState *rt = s->priv_data;
1907 char proto[128], host[1024], path[2048];
1908 char tcpname[1024], cmd[MAX_URL_SIZE], auth[128];
1909 const char *lower_rtsp_proto = "tcp";
1910 int port, err, tcp_fd;
1911 RTSPMessageHeader reply1, *reply = &reply1;
1912 int lower_transport_mask = 0;
1913 int default_port = RTSP_DEFAULT_PORT;
1914 int https_tunnel = 0;
1915 char real_challenge[64] = "";
1916 struct sockaddr_storage peer;
1917 socklen_t peer_len = sizeof(peer);
1918
1919 rt->stored_msg.expected_seq = -1;
1920 if (rt->rtp_port_max < rt->rtp_port_min) {
1921 av_log(s, AV_LOG_ERROR, "Invalid UDP port range, max port %d less "
1922 "than min port %d\n", rt->rtp_port_max,
1923 rt->rtp_port_min);
1924 return AVERROR(EINVAL);
1925 }
1926
1927 if ((err = ff_network_init()) < 0)
1928 return err;
1929
1930 if (s->max_delay < 0) /* Not set by the caller */
1931 s->max_delay = s->iformat ? DEFAULT_REORDERING_DELAY : 0;
1932
1933 rt->control_transport = RTSP_MODE_PLAIN;
1934 if (rt->lower_transport_mask & ((1 << RTSP_LOWER_TRANSPORT_HTTP) |
1935 (1 << RTSP_LOWER_TRANSPORT_HTTPS))) {
1936 https_tunnel = !!(rt->lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_HTTPS));
1937 rt->lower_transport_mask = 1 << RTSP_LOWER_TRANSPORT_TCP;
1938 rt->control_transport = RTSP_MODE_TUNNEL;
1939 }
1940 /* Only pass through valid flags from here */
1941 rt->lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
1942
1943redirect:
1944 memset(&reply1, 0, sizeof(reply1));
1945 /* extract hostname and port */
1946 av_url_split(proto, sizeof(proto), auth, sizeof(auth),
1947 host, sizeof(host), &port, path, sizeof(path), s->url);
1948
1949 if (!strcmp(proto, "rtsps")) {
1950 lower_rtsp_proto = "tls";
1951 default_port = RTSPS_DEFAULT_PORT;
1952 rt->lower_transport_mask = 1 << RTSP_LOWER_TRANSPORT_TCP;
1953 } else if (!strcmp(proto, "satip")) {
1954 av_strlcpy(proto, "rtsp", sizeof(proto));
1955 rt->server_type = RTSP_SERVER_SATIP;
1956 } else if (strcmp(proto, "rtsp"))
1957 return AVERROR_INVALIDDATA;
1958
1959 if (*auth) {
1960 av_strlcpy(rt->auth, auth, sizeof(rt->auth));
1961 }
1962 if (port < 0)
1963 port = default_port;
1964
1965 lower_transport_mask = rt->lower_transport_mask;
1966
1967 if (!lower_transport_mask)
1968 lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
1969
1970 if (s->oformat) {
1971 /* Only UDP or TCP - UDP multicast isn't supported. */
1972 lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_UDP) |
1973 (1 << RTSP_LOWER_TRANSPORT_TCP);
1974 if (!lower_transport_mask || rt->control_transport == RTSP_MODE_TUNNEL) {
1975 av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, "
1976 "only UDP and TCP are supported for output.\n");
1977 err = AVERROR(EINVAL);
1978 goto fail;
1979 }
1980 }
1981
1982 /* Construct the URI used in request; this is similar to s->url,
1983 * but with authentication credentials removed and RTSP specific options
1984 * stripped out. */
1985 ff_url_join(rt->control_uri, sizeof(rt->control_uri), proto, NULL,
1986 host, port, "%s", path);
1987
1988 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1989 /* set up initial handshake for tunneling */
1990 char httpname[1024];
1991 char sessioncookie[17];
1992 char headers[1024];
1993 AVDictionary *options = NULL;
1994
1995 av_dict_set_int(&options, "timeout", rt->stimeout, 0);
1996 if (https_tunnel) {
1997 int ret = copy_tls_opts_dict(rt, &options);
1998 if (ret < 0) {
1999 av_dict_free(&options);
2000 err = ret;
2001 goto fail;
2002 }
2003 }
2004
2005 ff_url_join(httpname, sizeof(httpname), https_tunnel ? "https" : "http", auth, host, port, "%s", path);
2006 snprintf(sessioncookie, sizeof(sessioncookie), "%08x%08x",
2007 av_get_random_seed(), av_get_random_seed());
2008
2009 /* GET requests */
2010 if (ffurl_alloc(&rt->rtsp_hd, httpname, AVIO_FLAG_READ,
2011 &s->interrupt_callback) < 0) {
2012 av_dict_free(&options);
2013 err = AVERROR(EIO);
2014 goto fail;
2015 }
2016
2017 /* generate GET headers */
2018 snprintf(headers, sizeof(headers),
2019 "x-sessioncookie: %s\r\n"
2020 "Accept: application/x-rtsp-tunnelled\r\n"
2021 "Pragma: no-cache\r\n"
2022 "Cache-Control: no-cache\r\n",
2023 sessioncookie);
2024 av_opt_set(rt->rtsp_hd->priv_data, "headers", headers, 0);
2025
2026 if (!rt->rtsp_hd->protocol_whitelist && s->protocol_whitelist) {
2027 rt->rtsp_hd->protocol_whitelist = av_strdup(s->protocol_whitelist);
2028 if (!rt->rtsp_hd->protocol_whitelist) {
2029 av_dict_free(&options);
2030 err = AVERROR(ENOMEM);
2031 goto fail;
2032 }
2033 }
2034
2035 if (!rt->rtsp_hd->protocol_blacklist && s->protocol_blacklist) {
2036 rt->rtsp_hd->protocol_blacklist = av_strdup(s->protocol_blacklist);
2037 if (!rt->rtsp_hd->protocol_blacklist) {
2038 av_dict_free(&options);
2039 err = AVERROR(ENOMEM);
2040 goto fail;
2041 }
2042 }
2043
2044 /* complete the connection */
2045 if (ffurl_connect(rt->rtsp_hd, &options)) {
2046 av_dict_free(&options);
2047 err = AVERROR(EIO);
2048 goto fail;
2049 }
2050
2051 /* POST requests */
2052 if (ffurl_alloc(&rt->rtsp_hd_out, httpname, AVIO_FLAG_WRITE,
2053 &s->interrupt_callback) < 0 ) {
2054 av_dict_free(&options);
2055 err = AVERROR(EIO);
2056 goto fail;
2057 }
2058
2059 /* generate POST headers */
2060 snprintf(headers, sizeof(headers),
2061 "x-sessioncookie: %s\r\n"
2062 "Content-Type: application/x-rtsp-tunnelled\r\n"
2063 "Pragma: no-cache\r\n"
2064 "Cache-Control: no-cache\r\n"
2065 "Content-Length: 32767\r\n"
2066 "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
2067 sessioncookie);
2068 av_opt_set(rt->rtsp_hd_out->priv_data, "headers", headers, 0);
2069 av_opt_set(rt->rtsp_hd_out->priv_data, "chunked_post", "0", 0);
2070 av_opt_set(rt->rtsp_hd_out->priv_data, "send_expect_100", "0", 0);
2071
2072 /* Initialize the authentication state for the POST session. The HTTP
2073 * protocol implementation doesn't properly handle multi-pass
2074 * authentication for POST requests, since it would require one of
2075 * the following:
2076 * - implementing Expect: 100-continue, which many HTTP servers
2077 * don't support anyway, even less the RTSP servers that do HTTP
2078 * tunneling
2079 * - sending the whole POST data until getting a 401 reply specifying
2080 * what authentication method to use, then resending all that data
2081 * - waiting for potential 401 replies directly after sending the
2082 * POST header (waiting for some unspecified time)
2083 * Therefore, we copy the full auth state, which works for both basic
2084 * and digest. (For digest, we would have to synchronize the nonce
2085 * count variable between the two sessions, if we'd do more requests
2086 * with the original session, though.)
2087 */
2088 ff_http_init_auth_state(rt->rtsp_hd_out, rt->rtsp_hd);
2089
2090 /* complete the connection */
2091 if (ffurl_connect(rt->rtsp_hd_out, &options)) {
2092 av_dict_free(&options);
2093 err = AVERROR(EIO);
2094 goto fail;
2095 }
2096 av_dict_free(&options);
2097 } else {
2098 int ret;
2099 /* open the tcp connection */
2100 AVDictionary *proto_opts = NULL;
2101 if (strcmp("tls", lower_rtsp_proto) == 0) {
2102 ret = copy_tls_opts_dict(rt, &proto_opts);
2103 if (ret < 0) {
2104 av_dict_free(&proto_opts);
2105 err = ret;
2106 goto fail;
2107 }
2108 }
2109
2110 ff_url_join(tcpname, sizeof(tcpname), lower_rtsp_proto, NULL,
2111 host, port,
2112 "?timeout=%"PRId64, rt->stimeout);
2113 if ((ret = ffurl_open_whitelist(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE,
2114 &s->interrupt_callback, &proto_opts, s->protocol_whitelist, s->protocol_blacklist, NULL)) < 0) {
2115 av_dict_free(&proto_opts);
2116 err = ret;
2117 goto fail;
2118 }
2119 av_dict_free(&proto_opts);
2120 rt->rtsp_hd_out = rt->rtsp_hd;
2121 }
2122 rt->seq = 0;
2123
2124 tcp_fd = ffurl_get_file_handle(rt->rtsp_hd);
2125 if (tcp_fd < 0) {
2126 err = tcp_fd;
2127 goto fail;
2128 }
2129 if (!getpeername(tcp_fd, (struct sockaddr*) &peer, &peer_len)) {
2130 getnameinfo((struct sockaddr*) &peer, peer_len, host, sizeof(host),
2131 NULL, 0, NI_NUMERICHOST);
2132 }
2133
2134 /* request options supported by the server; this also detects server
2135 * type */
2136 if (rt->server_type != RTSP_SERVER_SATIP)
2137 rt->server_type = RTSP_SERVER_RTP;
2138 for (;;) {
2139 cmd[0] = 0;
2140 if (rt->server_type == RTSP_SERVER_REAL)
2141 av_strlcat(cmd,
2142 /*
2143 * The following entries are required for proper
2144 * streaming from a Realmedia server. They are
2145 * interdependent in some way although we currently
2146 * don't quite understand how. Values were copied
2147 * from mplayer SVN r23589.
2148 * ClientChallenge is a 16-byte ID in hex
2149 * CompanyID is a 16-byte ID in base64
2150 */
2151 "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
2152 "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
2153 "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
2154 "GUID: 00000000-0000-0000-0000-000000000000\r\n",
2155 sizeof(cmd));
2156 ff_rtsp_send_cmd(s, "OPTIONS", rt->control_uri, cmd, reply, NULL);
2157 if (reply->status_code != RTSP_STATUS_OK) {
2158 err = ff_rtsp_averror(reply->status_code, AVERROR_INVALIDDATA);
2159 goto fail;
2160 }
2161
2162 /* detect server type if not standard-compliant RTP */
2163 if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) {
2164 rt->server_type = RTSP_SERVER_REAL;
2165 continue;
2166 } else if (!av_strncasecmp(reply->server, "WMServer/", 9)) {
2167 rt->server_type = RTSP_SERVER_WMS;
2168 } else if (rt->server_type == RTSP_SERVER_REAL)
2169 strcpy(real_challenge, reply->real_challenge);
2170 break;
2171 }
2172
2173#if CONFIG_RTSP_DEMUXER
2174 if (s->iformat) {
2175 if (rt->server_type == RTSP_SERVER_SATIP)
2176 err = init_satip_stream(s);
2177 else
2178 err = ff_rtsp_setup_input_streams(s, reply);
2179 } else
2180#endif
2181 if (CONFIG_RTSP_MUXER)
2182 err = ff_rtsp_setup_output_streams(s, host);
2183 else
2184 av_unreachable("Either muxer or demuxer must be enabled");
2185 if (err)
2186 goto fail;
2187
2188 do {
2189 int lower_transport = ff_log2_tab[lower_transport_mask &
2190 ~(lower_transport_mask - 1)];
2191
2192 if ((lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_TCP))
2193 && (rt->rtsp_flags & RTSP_FLAG_PREFER_TCP))
2194 lower_transport = RTSP_LOWER_TRANSPORT_TCP;
2195
2196 err = ff_rtsp_make_setup_request(s, host, port, lower_transport,
2197 rt->server_type == RTSP_SERVER_REAL ?
2198 real_challenge : NULL);
2199 if (err < 0)
2200 goto fail;
2201 lower_transport_mask &= ~(1 << lower_transport);
2202 if (lower_transport_mask == 0 && err == 1) {
2203 err = AVERROR(EPROTONOSUPPORT);
2204 goto fail;
2205 }
2206 } while (err);
2207
2208 rt->lower_transport_mask = lower_transport_mask;
2209 av_strlcpy(rt->real_challenge, real_challenge, sizeof(rt->real_challenge));
2210 rt->state = RTSP_STATE_IDLE;
2211 rt->seek_timestamp = 0; /* default is to start stream at position zero */
2212 return 0;
2213 fail:
2214 ff_rtsp_close_streams(s);
2215 ff_rtsp_close_connections(s);
2216 if (reply->status_code >=300 && reply->status_code < 400 && s->iformat) {
2217 int ret;
2218
2219 if (!rtsp_url_same_origin(s->url, reply->location)) {
2220 memset(rt->auth, 0, sizeof(rt->auth));
2221 memset(&rt->auth_state, 0, sizeof(rt->auth_state));
2222 }
2223 ret = ff_format_check_set_url(s, reply->location);
2224 if (ret < 0) {
2225 err = ret;
2226 goto fail2;
2227 }
2228 rt->session_id[0] = '\0';
2229 av_log(s, AV_LOG_INFO, "Status %d: Redirecting to %s\n",
2230 reply->status_code,
2231 s->url);
2232 goto redirect;
2233 }
2234 fail2:
2235 ff_network_close();
2236 return err;
2237}
2238#endif /* CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER */
2239
2240#if CONFIG_RTPDEC
2241#if CONFIG_RTSP_DEMUXER
2242static int parse_rtsp_message(AVFormatContext *s)
2243{
2244 RTSPState *rt = s->priv_data;
2245 int ret;
2246
2247 if (rt->rtsp_flags & RTSP_FLAG_LISTEN) {
2248 if (rt->state == RTSP_STATE_STREAMING) {
2249 return ff_rtsp_parse_streaming_commands(s);
2250 } else
2251 return AVERROR_EOF;
2252 } else {
2253 RTSPMessageHeader reply;
2254 ret = ff_rtsp_read_reply(s, &reply, NULL, 0, NULL);
2255 if (ret < 0)
2256 return ret;
2257 /* XXX: parse message */
2258 if (rt->state != RTSP_STATE_STREAMING)
2259 return 0;
2260 }
2261
2262 return 0;
2263}
2264#endif
2265
2266static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
2267 uint8_t *buf, int buf_size, int64_t wait_end)
2268{
2269 RTSPState *rt = s->priv_data;
2270 RTSPStream *rtsp_st;
2271 int n, i, ret;
2272 struct pollfd *p = rt->p;
2273 int *fds = NULL, fdsnum, fdsidx;
2274 int64_t runs = rt->stimeout / POLLING_TIME / 1000;
2275
2276 if (!p) {
2277 p = rt->p = av_malloc_array(2 * rt->nb_rtsp_streams + 1, sizeof(*p));
2278 if (!p)
2279 return AVERROR(ENOMEM);
2280
2281 if (rt->rtsp_hd) {
2282 p[rt->max_p].fd = ffurl_get_file_handle(rt->rtsp_hd);
2283 p[rt->max_p++].events = POLLIN;
2284 }
2285 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2286 rtsp_st = rt->rtsp_streams[i];
2287 if (rtsp_st->rtp_handle) {
2288 if (ret = ffurl_get_multi_file_handle(rtsp_st->rtp_handle,
2289 &fds, &fdsnum)) {
2290 av_log(s, AV_LOG_ERROR, "Unable to recover rtp ports\n");
2291 return ret;
2292 }
2293 if (fdsnum != 2) {
2294 av_log(s, AV_LOG_ERROR,
2295 "Number of fds %d not supported\n", fdsnum);
2296 av_freep(&fds);
2297 return AVERROR_INVALIDDATA;
2298 }
2299 for (fdsidx = 0; fdsidx < fdsnum; fdsidx++) {
2300 p[rt->max_p].fd = fds[fdsidx];
2301 p[rt->max_p++].events = POLLIN;
2302 }
2303 av_freep(&fds);
2304 }
2305 }
2306 }
2307
2308 for (;;) {
2309 if (ff_check_interrupt(&s->interrupt_callback))
2310 return AVERROR_EXIT;
2311 if (wait_end && wait_end - av_gettime_relative() < 0)
2312 return AVERROR(EAGAIN);
2313 n = poll(p, rt->max_p, POLLING_TIME);
2314 if (n > 0) {
2315 int j = rt->rtsp_hd ? 1 : 0;
2316 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2317 rtsp_st = rt->rtsp_streams[i];
2318 if (rtsp_st->rtp_handle) {
2319 if (p[j].revents & POLLIN || p[j+1].revents & POLLIN) {
2320 ret = ffurl_read(rtsp_st->rtp_handle, buf, buf_size);
2321 if (ret > 0) {
2322 *prtsp_st = rtsp_st;
2323 return ret;
2324 }
2325 }
2326 j+=2;
2327 }
2328 }
2329#if CONFIG_RTSP_DEMUXER
2330 if (rt->rtsp_hd && p[0].revents & POLLIN) {
2331 if ((ret = parse_rtsp_message(s)) < 0) {
2332 return ret;
2333 }
2334 }
2335#endif
2336 } else if (n == 0 && rt->stimeout > 0 && --runs <= 0) {
2337 return AVERROR(ETIMEDOUT);
2338 } else if (n < 0 && errno != EINTR)
2339 return AVERROR(errno);
2340 }
2341}
2342
2343static int pick_stream(AVFormatContext *s, RTSPStream **rtsp_st,
2344 const uint8_t *buf, int len)
2345{
2346 RTSPState *rt = s->priv_data;
2347 int i;
2348 if (len < 0)
2349 return len;
2350 if (rt->nb_rtsp_streams == 1) {
2351 *rtsp_st = rt->rtsp_streams[0];
2352 return len;
2353 }
2354 if (len >= 8 && rt->transport == RTSP_TRANSPORT_RTP) {
2355 if (RTP_PT_IS_RTCP(rt->recvbuf[1])) {
2356 int no_ssrc = 0;
2357 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2358 RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
2359 if (!rtpctx)
2360 continue;
2361 if (rtpctx->ssrc == AV_RB32(&buf[4])) {
2362 *rtsp_st = rt->rtsp_streams[i];
2363 return len;
2364 }
2365 if (!rtpctx->ssrc)
2366 no_ssrc = 1;
2367 }
2368 if (no_ssrc) {
2369 av_log(s, AV_LOG_WARNING,
2370 "Unable to pick stream for packet - SSRC not known for "
2371 "all streams\n");
2372 return AVERROR(EAGAIN);
2373 }
2374 } else {
2375 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2376 if ((buf[1] & 0x7f) == rt->rtsp_streams[i]->sdp_payload_type) {
2377 *rtsp_st = rt->rtsp_streams[i];
2378 return len;
2379 }
2380 }
2381 }
2382 }
2383 av_log(s, AV_LOG_WARNING, "Unable to pick stream for packet\n");
2384 return AVERROR(EAGAIN);
2385}
2386
2387static int read_packet(AVFormatContext *s,
2388 RTSPStream **rtsp_st, RTSPStream *first_queue_st,
2389 int64_t wait_end)
2390{
2391 RTSPState *rt = s->priv_data;
2392 int len;
2393
2394 switch(rt->lower_transport) {
2395 default:
2396#if CONFIG_RTSP_DEMUXER
2397 case RTSP_LOWER_TRANSPORT_TCP:
2398 len = ff_rtsp_tcp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE);
2399 break;
2400#endif
2401 case RTSP_LOWER_TRANSPORT_UDP:
2402 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
2403 len = udp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
2404 if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
2405 ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, (*rtsp_st)->rtp_handle, NULL, len);
2406 break;
2407 case RTSP_LOWER_TRANSPORT_CUSTOM:
2408 if (first_queue_st && rt->transport == RTSP_TRANSPORT_RTP &&
2409 wait_end && wait_end < av_gettime_relative())
2410 len = AVERROR(EAGAIN);
2411 else
2412 len = avio_read_partial(s->pb, rt->recvbuf, RECVBUF_SIZE);
2413 len = pick_stream(s, rtsp_st, rt->recvbuf, len);
2414 if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
2415 ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, NULL, s->pb, len);
2416 break;
2417 }
2418
2419 if (len == 0)
2420 return AVERROR_EOF;
2421
2422 return len;
2423}
2424
2425int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
2426{
2427 RTSPState *rt = s->priv_data;
2428 int ret, len;
2429 RTSPStream *rtsp_st, *first_queue_st = NULL;
2430 int64_t wait_end = 0;
2431
2432 if (rt->nb_byes == rt->nb_rtsp_streams)
2433 return AVERROR_EOF;
2434
2435 /* get next frames from the same RTP packet */
2436 if (rt->cur_transport_priv) {
2437 if (rt->transport == RTSP_TRANSPORT_RDT) {
2438 ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
2439 } else if (rt->transport == RTSP_TRANSPORT_RTP) {
2440 ret = ff_rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
2441 } else if (CONFIG_RTPDEC && rt->ts) {
2442 ret = avpriv_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf + rt->recvbuf_pos, rt->recvbuf_len - rt->recvbuf_pos);
2443 if (ret >= 0) {
2444 rt->recvbuf_pos += ret;
2445 ret = rt->recvbuf_pos < rt->recvbuf_len;
2446 }
2447 } else
2448 ret = -1;
2449 if (ret == 0) {
2450 rt->cur_transport_priv = NULL;
2451 return 0;
2452 } else if (ret == 1) {
2453 return 0;
2454 } else
2455 rt->cur_transport_priv = NULL;
2456 }
2457
2458redo:
2459 if (rt->transport == RTSP_TRANSPORT_RTP) {
2460 int i;
2461 int64_t first_queue_time = 0;
2462 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2463 RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
2464 int64_t queue_time;
2465 if (!rtpctx)
2466 continue;
2467 queue_time = ff_rtp_queued_packet_time(rtpctx);
2468 if (queue_time && (queue_time - first_queue_time < 0 ||
2469 !first_queue_time)) {
2470 first_queue_time = queue_time;
2471 first_queue_st = rt->rtsp_streams[i];
2472 }
2473 }
2474 if (first_queue_time) {
2475 wait_end = first_queue_time + s->max_delay;
2476 } else {
2477 wait_end = 0;
2478 first_queue_st = NULL;
2479 }
2480 }
2481
2482 /* read next RTP packet */
2483 if (!rt->recvbuf) {
2484 rt->recvbuf = av_malloc(RECVBUF_SIZE);
2485 if (!rt->recvbuf)
2486 return AVERROR(ENOMEM);
2487 }
2488
2489 len = read_packet(s, &rtsp_st, first_queue_st, wait_end);
2490 if (len == AVERROR(EAGAIN) && first_queue_st &&
2491 rt->transport == RTSP_TRANSPORT_RTP) {
2492 av_log(s, AV_LOG_WARNING,
2493 "max delay reached. need to consume packet\n");
2494 rtsp_st = first_queue_st;
2495 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, NULL, 0);
2496 goto end;
2497 }
2498 if (len < 0)
2499 return len;
2500
2501 if (rt->transport == RTSP_TRANSPORT_RDT) {
2502 ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
2503 } else if (rt->transport == RTSP_TRANSPORT_RTP) {
2504 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
2505 if (rtsp_st->feedback) {
2506 AVIOContext *pb = NULL;
2507 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_CUSTOM)
2508 pb = s->pb;
2509 ff_rtp_send_rtcp_feedback(rtsp_st->transport_priv, rtsp_st->rtp_handle, pb);
2510 }
2511 if (ret < 0) {
2512 /* Either bad packet, or a RTCP packet. Check if the
2513 * first_rtcp_ntp_time field was initialized. */
2514 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
2515 if (rtpctx->first_rtcp_ntp_time != AV_NOPTS_VALUE) {
2516 /* first_rtcp_ntp_time has been initialized for this stream,
2517 * copy the same value to all other uninitialized streams,
2518 * in order to map their timestamp origin to the same ntp time
2519 * as this one. */
2520 int i;
2521 AVStream *st = NULL;
2522 if (rtsp_st->stream_index >= 0)
2523 st = s->streams[rtsp_st->stream_index];
2524 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2525 RTPDemuxContext *rtpctx2 = rt->rtsp_streams[i]->transport_priv;
2526 AVStream *st2 = NULL;
2527 if (rt->rtsp_streams[i]->stream_index >= 0)
2528 st2 = s->streams[rt->rtsp_streams[i]->stream_index];
2529 if (rtpctx2 && st && st2 &&
2530 rtpctx2->first_rtcp_ntp_time == AV_NOPTS_VALUE) {
2531 rtpctx2->first_rtcp_ntp_time = rtpctx->first_rtcp_ntp_time;
2532 rtpctx2->rtcp_ts_offset = av_rescale_q(
2533 rtpctx->rtcp_ts_offset, st->time_base,
2534 st2->time_base);
2535 }
2536 }
2537 // Make real NTP start time available in AVFormatContext
2538 if (s->start_time_realtime == AV_NOPTS_VALUE) {
2539 s->start_time_realtime = ff_parse_ntp_time(rtpctx->first_rtcp_ntp_time) - NTP_OFFSET_US;
2540 if (rtpctx->st) {
2541 s->start_time_realtime -=
2542 av_rescale_q (rtpctx->rtcp_ts_offset, rtpctx->st->time_base, AV_TIME_BASE_Q);
2543 }
2544 }
2545 }
2546 if (ret == -RTCP_BYE) {
2547 rt->nb_byes++;
2548
2549 av_log(s, AV_LOG_DEBUG, "Received BYE for stream %d (%d/%d)\n",
2550 rtsp_st->stream_index, rt->nb_byes, rt->nb_rtsp_streams);
2551
2552 if (rt->nb_byes == rt->nb_rtsp_streams)
2553 return AVERROR_EOF;
2554 }
2555 }
2556 } else if (CONFIG_RTPDEC && rt->ts) {
2557 ret = avpriv_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf, len);
2558 if (ret >= 0) {
2559 if (ret < len) {
2560 rt->recvbuf_len = len;
2561 rt->recvbuf_pos = ret;
2562 rt->cur_transport_priv = rt->ts;
2563 return 1;
2564 } else {
2565 ret = 0;
2566 }
2567 }
2568 } else {
2569 return AVERROR_INVALIDDATA;
2570 }
2571end:
2572 if (ret < 0)
2573 goto redo;
2574 if (ret == 1)
2575 /* more packets may follow, so we save the RTP context */
2576 rt->cur_transport_priv = rtsp_st->transport_priv;
2577
2578 return ret;
2579}
2580#endif /* CONFIG_RTPDEC */
2581
2582#if CONFIG_SDP_DEMUXER
2583static int sdp_probe(const AVProbeData *p1)
2584{
2585 const char *p = p1->buf, *p_end = p1->buf + p1->buf_size;
2586
2587 /* we look for a line beginning "c=IN IP" */
2588 while (p < p_end && *p != '\0') {
2589 if (sizeof("c=IN IP") - 1 < p_end - p &&
2590 av_strstart(p, "c=IN IP", NULL))
2591 return AVPROBE_SCORE_EXTENSION;
2592
2593 while (p < p_end - 1 && *p != '\n') p++;
2594 if (++p >= p_end)
2595 break;
2596 if (*p == '\r')
2597 p++;
2598 }
2599 return 0;
2600}
2601
2602static void append_source_addrs(char *buf, int size, const char *name,
2603 int count, struct RTSPSource **addrs)
2604{
2605 int i;
2606 if (!count)
2607 return;
2608 av_strlcatf(buf, size, "&%s=%s", name, addrs[0]->addr);
2609 for (i = 1; i < count; i++)
2610 av_strlcatf(buf, size, ",%s", addrs[i]->addr);
2611}
2612
2613static int sdp_read_header(AVFormatContext *s)
2614{
2615 RTSPState *rt = s->priv_data;
2616 RTSPStream *rtsp_st;
2617 int i, err;
2618 char url[MAX_URL_SIZE];
2619 AVBPrint bp;
2620
2621 if ((err = ff_network_init()) < 0)
2622 return err;
2623
2624 if (s->max_delay < 0) /* Not set by the caller */
2625 s->max_delay = DEFAULT_REORDERING_DELAY;
2626 if (rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)
2627 rt->lower_transport = RTSP_LOWER_TRANSPORT_CUSTOM;
2628
2629 /* read the whole sdp file */
2630 av_bprint_init(&bp, 0, AV_BPRINT_SIZE_UNLIMITED);
2631 err = avio_read_to_bprint(s->pb, &bp, INT_MAX);
2632 if (err < 0 ) {
2633 ff_network_close();
2634 av_bprint_finalize(&bp, NULL);
2635 return err;
2636 }
2637 err = ff_sdp_parse(s, bp.str);
2638 av_bprint_finalize(&bp, NULL);
2639 if (err) goto fail;
2640
2641 /* open each RTP stream */
2642 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2643 char namebuf[50];
2644 rtsp_st = rt->rtsp_streams[i];
2645
2646 if (!(rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)) {
2647 AVDictionary *opts = map_to_opts(rt);
2648 char buf[MAX_URL_SIZE];
2649 const char *p;
2650
2651 err = getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip,
2652 sizeof(rtsp_st->sdp_ip),
2653 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
2654 if (err) {
2655 av_log(s, AV_LOG_ERROR, "getnameinfo: %s\n", gai_strerror(err));
2656 err = AVERROR(EIO);
2657 av_dict_free(&opts);
2658 goto fail;
2659 }
2660 ff_url_join(url, sizeof(url), "rtp", NULL,
2661 namebuf, rtsp_st->sdp_port,
2662 "?localrtpport=%d&ttl=%d&connect=%d&write_to_source=%d",
2663 rtsp_st->sdp_port, rtsp_st->sdp_ttl,
2664 rt->rtsp_flags & RTSP_FLAG_FILTER_SRC ? 1 : 0,
2665 rt->rtsp_flags & RTSP_FLAG_RTCP_TO_SOURCE ? 1 : 0);
2666
2667 p = strchr(s->url, '?');
2668 if (p && av_find_info_tag(buf, sizeof(buf), "localaddr", p))
2669 av_strlcatf(url, sizeof(url), "&localaddr=%s", buf);
2670 else if (rt->localaddr && rt->localaddr[0])
2671 av_strlcatf(url, sizeof(url), "&localaddr=%s", rt->localaddr);
2672 append_source_addrs(url, sizeof(url), "sources",
2673 rtsp_st->nb_include_source_addrs,
2674 rtsp_st->include_source_addrs);
2675 append_source_addrs(url, sizeof(url), "block",
2676 rtsp_st->nb_exclude_source_addrs,
2677 rtsp_st->exclude_source_addrs);
2678 err = ffurl_open_whitelist(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ,
2679 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
2680
2681 av_dict_free(&opts);
2682
2683 if (err < 0) {
2684 err = AVERROR_INVALIDDATA;
2685 goto fail;
2686 }
2687 }
2688 if ((err = ff_rtsp_open_transport_ctx(s, rtsp_st)))
2689 goto fail;
2690 }
2691 return 0;
2692fail:
2693 ff_rtsp_close_streams(s);
2694 ff_network_close();
2695 return err;
2696}
2697
2698static int sdp_read_close(AVFormatContext *s)
2699{
2700 ff_rtsp_close_streams(s);
2701 ff_network_close();
2702 return 0;
2703}
2704
2705static const AVClass sdp_demuxer_class = {
2706 .class_name = "SDP demuxer",
2707 .item_name = av_default_item_name,
2708 .option = sdp_options,
2709 .version = LIBAVUTIL_VERSION_INT,
2710};
2711
2712const FFInputFormat ff_sdp_demuxer = {
2713 .p.name = "sdp",
2714 .p.long_name = NULL_IF_CONFIG_SMALL("SDP"),
2715 .p.priv_class = &sdp_demuxer_class,
2716 .priv_data_size = sizeof(RTSPState),
2717 .read_probe = sdp_probe,
2718 .read_header = sdp_read_header,
2719 .read_packet = ff_rtsp_fetch_packet,
2720 .read_close = sdp_read_close,
2721};
2722#endif /* CONFIG_SDP_DEMUXER */
2723
2724#if CONFIG_RTP_DEMUXER
2725static int rtp_probe(const AVProbeData *p)
2726{
2727 if (av_strstart(p->filename, "rtp:", NULL))
2728 return AVPROBE_SCORE_MAX;
2729 return 0;
2730}
2731
2732static int rtp_read_header(AVFormatContext *s)
2733{
2734 uint8_t recvbuf[RTP_MAX_PACKET_LENGTH];
2735 char host[500], filters_buf[1000];
2736 int ret, port;
2737 URLContext* in = NULL;
2738 int payload_type;
2739 AVCodecParameters *par = NULL;
2740 struct sockaddr_storage addr;
2741 FFIOContext pb;
2742 socklen_t addrlen = sizeof(addr);
2743 RTSPState *rt = s->priv_data;
2744 const char *p;
2745 AVBPrint sdp;
2746 AVDictionary *opts = NULL;
2747
2748 if ((ret = ff_network_init()) < 0)
2749 return ret;
2750
2751 opts = map_to_opts(rt);
2752 ret = ffurl_open_whitelist(&in, s->url, AVIO_FLAG_READ,
2753 &s->interrupt_callback, &opts, s->protocol_whitelist, s->protocol_blacklist, NULL);
2754 av_dict_free(&opts);
2755 if (ret)
2756 goto fail;
2757
2758 while (1) {
2759 ret = ffurl_read(in, recvbuf, sizeof(recvbuf));
2760 if (ret == AVERROR(EAGAIN))
2761 continue;
2762 if (ret < 0)
2763 goto fail;
2764 if (ret < 12) {
2765 av_log(s, AV_LOG_WARNING, "Received too short packet\n");
2766 continue;
2767 }
2768
2769 if ((recvbuf[0] & 0xc0) != 0x80) {
2770 av_log(s, AV_LOG_WARNING, "Unsupported RTP version packet "
2771 "received\n");
2772 continue;
2773 }
2774
2775 if (RTP_PT_IS_RTCP(recvbuf[1]))
2776 continue;
2777
2778 payload_type = recvbuf[1] & 0x7f;
2779 break;
2780 }
2781 getsockname(ffurl_get_file_handle(in), (struct sockaddr*) &addr, &addrlen);
2782 ffurl_closep(&in);
2783
2784 par = avcodec_parameters_alloc();
2785 if (!par) {
2786 ret = AVERROR(ENOMEM);
2787 goto fail;
2788 }
2789
2790 if (ff_rtp_get_codec_info(par, payload_type)) {
2791 av_log(s, AV_LOG_ERROR, "Unable to receive RTP payload type %d "
2792 "without an SDP file describing it\n",
2793 payload_type);
2794 ret = AVERROR_INVALIDDATA;
2795 goto fail;
2796 }
2797 if (par->codec_type != AVMEDIA_TYPE_DATA) {
2798 av_log(s, AV_LOG_WARNING, "Guessing on RTP content - if not received "
2799 "properly you need an SDP file "
2800 "describing it\n");
2801 }
2802
2803 av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port,
2804 NULL, 0, s->url);
2805
2806 av_bprint_init(&sdp, 0, AV_BPRINT_SIZE_UNLIMITED);
2807 av_bprintf(&sdp, "v=0\r\nc=IN IP%d %s\r\n",
2808 addr.ss_family == AF_INET ? 4 : 6, host);
2809
2810 p = strchr(s->url, '?');
2811 if (p) {
2812 static const char filters[][2][8] = { { "sources", "incl" },
2813 { "block", "excl" } };
2814 int i;
2815 char *q;
2816 for (i = 0; i < FF_ARRAY_ELEMS(filters); i++) {
2817 if (av_find_info_tag(filters_buf, sizeof(filters_buf), filters[i][0], p)) {
2818 q = filters_buf;
2819 while ((q = strchr(q, ',')) != NULL)
2820 *q = ' ';
2821 av_bprintf(&sdp, "a=source-filter:%s IN IP%d %s %s\r\n",
2822 filters[i][1],
2823 addr.ss_family == AF_INET ? 4 : 6, host,
2824 filters_buf);
2825 }
2826 }
2827 }
2828
2829 av_bprintf(&sdp, "m=%s %d RTP/AVP %d\r\n",
2830 par->codec_type == AVMEDIA_TYPE_DATA ? "application" :
2831 par->codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
2832 port, payload_type);
2833 av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp.str);
2834 if (!av_bprint_is_complete(&sdp))
2835 goto fail_nobuf;
2836 avcodec_parameters_free(&par);
2837
2838 ffio_init_read_context(&pb, sdp.str, sdp.len);
2839 s->pb = &pb.pub;
2840
2841 /* if sdp_read_header() fails then following ff_network_close() cancels out */
2842 /* ff_network_init() at the start of this function. Otherwise it cancels out */
2843 /* ff_network_init() inside sdp_read_header() */
2844 ff_network_close();
2845
2846 rt->media_type_mask = (1 << (AVMEDIA_TYPE_SUBTITLE+1)) - 1;
2847
2848 ret = sdp_read_header(s);
2849 s->pb = NULL;
2850 av_bprint_finalize(&sdp, NULL);
2851 return ret;
2852
2853fail_nobuf:
2854 ret = AVERROR(ENOMEM);
2855 av_log(s, AV_LOG_ERROR, "rtp_read_header(): not enough buffer space for sdp-headers\n");
2856 av_bprint_finalize(&sdp, NULL);
2857fail:
2858 avcodec_parameters_free(&par);
2859 ffurl_closep(&in);
2860 ff_network_close();
2861 return ret;
2862}
2863
2864static const AVClass rtp_demuxer_class = {
2865 .class_name = "RTP demuxer",
2866 .item_name = av_default_item_name,
2867 .option = rtp_options,
2868 .version = LIBAVUTIL_VERSION_INT,
2869};
2870
2871const FFInputFormat ff_rtp_demuxer = {
2872 .p.name = "rtp",
2873 .p.long_name = NULL_IF_CONFIG_SMALL("RTP input"),
2874 .p.flags = AVFMT_NOFILE,
2875 .p.priv_class = &rtp_demuxer_class,
2876 .priv_data_size = sizeof(RTSPState),
2877 .read_probe = rtp_probe,
2878 .read_header = rtp_read_header,
2879 .read_packet = ff_rtsp_fetch_packet,
2880 .read_close = sdp_read_close,
2881};
2882#endif /* CONFIG_RTP_DEMUXER */
filters
#define filters(fmt, type, inverse, clp, inverset, clip, one, clip_fn, packed)
Definition af_crystalizer.c:55
ff_sdp_demuxer
const FFInputFormat ff_sdp_demuxer
ff_rtp_demuxer
const FFInputFormat ff_rtp_demuxer
opts
static AVDictionary * opts
Definition api-movenc-test.c:51
avassert.h
simple assert() macros that are a bit more flexible than ISO C assert().
av_unreachable
#define av_unreachable(msg)
Asserts that are used as compiler optimization hints depending upon ASSERT_LEVEL and NBDEBUG.
Definition avassert.h:99
ff_format_check_set_url
int ff_format_check_set_url(AVFormatContext *s, const char *url)
Set AVFormatContext url field to a av_strdup of the provided pointer.
Definition avformat.c:930
avpriv_set_pts_info
void avpriv_set_pts_info(AVStream *st, int pts_wrap_bits, unsigned int pts_num, unsigned int pts_den)
Set the time base and wrapping info for a given stream.
Definition avformat.c:834
avformat.h
Main libavformat public API header.
AVPROBE_SCORE_MAX
#define AVPROBE_SCORE_MAX
maximum score
Definition avformat.h:485
AVFMTCTX_NOHEADER
#define AVFMTCTX_NOHEADER
signal that no header is present (streams are added dynamically)
Definition avformat.h:1286
AVFMT_NOFILE
#define AVFMT_NOFILE
Demuxer will use avio_open, no opened file should be provided by the caller.
Definition avformat.h:490
AVPROBE_SCORE_EXTENSION
#define AVPROBE_SCORE_EXTENSION
score for file extension
Definition avformat.h:483
AVFMTCTX_UNSEEKABLE
#define AVFMTCTX_UNSEEKABLE
signal that the stream is definitely not seekable, and attempts to call the seek function will fail.
Definition avformat.h:1288
ffurl_alloc
int ffurl_alloc(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb)
Create a URLContext for accessing to the resource indicated by url, but do not initiate the connectio...
Definition avio.c:362
ff_check_interrupt
int ff_check_interrupt(AVIOInterruptCB *cb)
Check if the user has requested to interrupt a blocking function associated with cb.
Definition avio.c:929
ffurl_open_whitelist
int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options, const char *whitelist, const char *blacklist, URLContext *parent)
Create an URLContext for accessing to the resource indicated by url, and open it.
Definition avio.c:466
ffurl_closep
int ffurl_closep(URLContext **hh)
Close the resource accessed by the URLContext h, and free the memory used by it.
Definition avio.c:663
ffurl_connect
int ffurl_connect(URLContext *uc, AVDictionary **options)
Connect an URLContext that has been allocated by ffurl_alloc.
Definition avio.c:212
ffurl_get_file_handle
int ffurl_get_file_handle(URLContext *h)
Return the file descriptor associated with this URL.
Definition avio.c:889
ffurl_get_multi_file_handle
int ffurl_get_multi_file_handle(URLContext *h, int **handles, int *numhandles)
Return the file descriptors associated with this URL.
Definition avio.c:896
avio_closep
int avio_closep(AVIOContext **s)
Close the resource accessed by the AVIOContext *s, free it and set the pointer pointing to it to NULL...
Definition avio.c:724
ffurl_read_complete
int ffurl_read_complete(URLContext *h, unsigned char *buf, int size)
Read as many bytes as possible (up to size), calling the read function multiple times if necessary.
Definition avio.c:632
AVIO_FLAG_READ
#define AVIO_FLAG_READ
read-only
Definition avio.h:617
avio_read_partial
int avio_read_partial(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition aviobuf.c:687
AVIO_FLAG_WRITE
#define AVIO_FLAG_WRITE
write-only
Definition avio.h:618
AVIO_FLAG_READ_WRITE
#define AVIO_FLAG_READ_WRITE
read-write pseudo flag
Definition avio.h:619
avio_read_to_bprint
int avio_read_to_bprint(AVIOContext *h, struct AVBPrint *pb, size_t max_size)
Read contents of h into print buffer, up to max_size bytes, or up to EOF.
Definition aviobuf.c:1213
avio_internal.h
ffio_free_dyn_buf
void ffio_free_dyn_buf(AVIOContext **s)
Free a dynamic buffer.
Definition aviobuf.c:1397
ffio_init_read_context
void ffio_init_read_context(FFIOContext *s, const uint8_t *buffer, int buffer_size)
Wrap a buffer in an AVIOContext for reading.
Definition aviobuf.c:99
read_packet
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
Definition avio_read_callback.c:42
av_sscanf
int av_sscanf(const char *string, const char *format,...)
Definition avsscanf.c:961
av_strlcatf
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition avstring.c:103
read
static uint32_t BS_FUNC read(BSCTX *bc, unsigned int n)
Return n bits from the buffer, n has to be in the 0-32 range.
Definition bitstream_template.h:239
av_bprintf
void av_bprintf(AVBPrint *buf, const char *fmt,...)
Definition bprint.c:121
bprint.h
AVBPrint public header.
ENC
#define ENC
Definition caca.c:198
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
s
#define s(width, name)
Definition cbs_vp9.c:198
read_probe
static int read_probe(const AVProbeData *p)
Definition cdg.c:30
codec_desc.h
avcodec_parameters_alloc
AVCodecParameters * avcodec_parameters_alloc(void)
Definition codec_par.c:57
avcodec_parameters_free
void avcodec_parameters_free(AVCodecParameters **ppar)
Definition codec_par.c:67
CONFIG_RTPDEC
#define CONFIG_RTPDEC
Definition config.h:800
config_components.h
CONFIG_RTSP_MUXER
#define CONFIG_RTSP_MUXER
Definition config_components.h:2233
NULL
#define NULL
Definition coverity.c:32
int64_t
long long int64_t
Definition coverity.c:34
pkt
static AVPacket * pkt
Definition demux_decode.c:55
dict.h
Public dictionary API.
interleave
static av_always_inline void RENAME interleave(TYPE *dst, TYPE *src0, TYPE *src1, int w2, int add, int shift)
Definition dirac_dwt_template.c:55
SPACE_CHARS
#define SPACE_CHARS
Definition dnn_backend_tf.c:356
value
double value
Definition eval.c:102
key
const char * key
Definition ffmpeg_mux_init.c:3089
read_header
static int read_header(FFV1Context *f, RangeCoder *c)
Definition ffv1dec.c:578
fail
#define fail
Definition test.h:479
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition opt.h:298
AV_OPT_TYPE_DURATION
@ AV_OPT_TYPE_DURATION
Underlying C type is int64_t.
Definition opt.h:318
AV_OPT_TYPE_FLAGS
@ AV_OPT_TYPE_FLAGS
Underlying C type is unsigned int.
Definition opt.h:254
AV_OPT_TYPE_INT64
@ AV_OPT_TYPE_INT64
Underlying C type is int64_t.
Definition opt.h:262
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition opt.h:326
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition opt.h:275
avcodec_descriptor_get
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
Definition codec_desc.c:3900
AV_CODEC_ID_MPEG2TS
@ AV_CODEC_ID_MPEG2TS
FAKE codec to indicate a raw MPEG-2 TS stream (only used by libavformat)
Definition codec_id.h:617
AV_CODEC_ID_NONE
@ AV_CODEC_ID_NONE
Definition codec_id.h:48
avformat_new_stream
AVStream * avformat_new_stream(AVFormatContext *s, const struct AVCodec *c)
Add a new stream to a media file.
avformat_free_context
void avformat_free_context(AVFormatContext *s)
Free an AVFormatContext and all its streams.
Definition avformat.c:150
avformat_close_input
void avformat_close_input(AVFormatContext **s)
Close an opened input AVFormatContext.
Definition demux.c:377
av_write_trailer
int av_write_trailer(AVFormatContext *s)
Write the stream trailer to an output media file and free the file private data.
Definition mux.c:1238
av_url_split
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
Definition utils.c:361
av_channel_layout_default
void av_channel_layout_default(AVChannelLayout *ch_layout, int nb_channels)
Get the default channel layout for a given number of channels.
Definition channel_layout.c:841
AV_CHANNEL_LAYOUT_MONO
#define AV_CHANNEL_LAYOUT_MONO
Definition channel_layout.h:403
AV_BPRINT_SIZE_UNLIMITED
#define AV_BPRINT_SIZE_UNLIMITED
Buffer will be reallocated as necessary, with an amortized linear cost.
Definition bprint.h:111
av_bprint_is_complete
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
Definition bprint.h:218
av_bprint_init
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
Init a print buffer.
Definition bprint.c:68
av_bprint_finalize
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
Definition bprint.c:234
av_base64_encode
char * av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size)
Encode data to base64 and null-terminate.
Definition base64.c:147
AV_BASE64_SIZE
#define AV_BASE64_SIZE(x)
Calculate the output size needed to base64-encode x bytes to a null-terminated string.
Definition base64.h:66
av_get_random_seed
uint32_t av_get_random_seed(void)
Get a seed to use in conjunction with random functions.
Definition random_seed.c:196
av_dict_free
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values.
Definition dict.c:233
av_dict_set
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition dict.c:86
av_dict_set_int
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set() that converts the value to a string and stores it.
Definition dict.c:177
AVERROR_EXIT
#define AVERROR_EXIT
Immediate exit was requested; the called function should not be restarted.
Definition error.h:58
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition error.h:64
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition error.h:61
AVERROR_EOF
#define AVERROR_EOF
End of file.
Definition error.h:57
av_err2str
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition error.h:122
AVERROR
#define AVERROR(e)
Definition error.h:45
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition log.h:236
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition log.h:216
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition log.h:226
AV_LOG_INFO
#define AV_LOG_INFO
Standard information.
Definition log.h:221
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition log.c:241
av_d2q
AVRational av_d2q(double d, int max)
Convert a double precision floating point number to a rational.
Definition rational.c:110
av_rescale_q
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq)
Rescale a 64-bit integer by 2 rational numbers.
Definition mathematics.c:142
av_memdup
void * av_memdup(const void *p, size_t size)
Duplicate a buffer with av_malloc().
Definition mem.c:302
av_calloc
void * av_calloc(size_t nmemb, size_t size)
Allocate a memory block for an array with av_mallocz().
Definition mem.c:264
AVMediaType
AVMediaType
Definition avutil.h:198
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition avutil.h:201
AVMEDIA_TYPE_SUBTITLE
@ AVMEDIA_TYPE_SUBTITLE
Definition avutil.h:203
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition avutil.h:200
AVMEDIA_TYPE_DATA
@ AVMEDIA_TYPE_DATA
Opaque data information usually continuous.
Definition avutil.h:202
AVMEDIA_TYPE_UNKNOWN
@ AVMEDIA_TYPE_UNKNOWN
Usually treated as AVMEDIA_TYPE_DATA.
Definition avutil.h:199
av_strlcat
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes,...
Definition avstring.c:95
av_strcasecmp
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition avstring.c:208
av_strstart
int av_strstart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str.
Definition avstring.c:36
av_strlcpy
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition avstring.c:85
av_stristart
int av_stristart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str independent of case.
Definition avstring.c:47
av_strncasecmp
int av_strncasecmp(const char *a, const char *b, size_t n)
Locale-independent case-insensitive compare.
Definition avstring.c:218
AV_NOPTS_VALUE
#define AV_NOPTS_VALUE
Undefined timestamp value.
Definition avutil.h:247
AV_TIME_BASE_Q
#define AV_TIME_BASE_Q
Internal time base represented as fractional value.
Definition avutil.h:263
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition version.h:85
av_opt_set
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition opt.c:891
ff_http_init_auth_state
void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
Initialize the authentication state based on another HTTP URLContext.
Definition http.c:239
ff_http_auth_create_response
char * ff_http_auth_create_response(HTTPAuthState *state, const char *auth, const char *path, const char *method)
Definition httpauth.c:240
ff_http_auth_handle_header
void ff_http_auth_handle_header(HTTPAuthState *state, const char *key, const char *value)
Definition httpauth.c:93
HTTPAuthType
HTTPAuthType
Authentication types, ordered from weakest to strongest.
Definition httpauth.h:28
HTTP_AUTH_NONE
@ HTTP_AUTH_NONE
No authentication specified.
Definition httpauth.h:29
ff_log2_tab
const uint8_t ff_log2_tab[256]
Definition log2_tab.c:23
AV_RB32
#define AV_RB32(p)
Definition intreadwrite.h:412
AV_RB16
#define AV_RB16(p)
Definition intreadwrite.h:398
ffstream
static av_always_inline FFStream * ffstream(AVStream *st)
Definition internal.h:365
dynarray_add
#define dynarray_add(tab, nb_ptr, elem)
Definition internal.h:376
ff_parse_ntp_time
uint64_t ff_parse_ntp_time(uint64_t ntp_ts)
Parse the NTP time in microseconds (since NTP epoch).
Definition utils.c:284
MAX_URL_SIZE
#define MAX_URL_SIZE
Definition internal.h:30
NTP_OFFSET_US
#define NTP_OFFSET_US
Definition internal.h:422
version.h
Libavformat version macros.
LIBAVFORMAT_IDENT
#define LIBAVFORMAT_IDENT
Definition version.h:45
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition internal.h:97
avpriv_report_missing_feature
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
read_close
static av_cold int read_close(AVFormatContext *ctx)
Definition libcdio.c:143
DEC
#define DEC
Definition librsvgdec.c:149
desc
const char * desc
Definition libsvtav1.c:83
handler
static void handler(vbi_event *ev, void *user_data)
Definition libzvbi-teletextdec.c:510
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
mem.h
Memory handling functions.
avpriv_mpegts_parse_close
void avpriv_mpegts_parse_close(MpegTSContext *ts)
Definition mpegts.c:3871
avpriv_mpegts_parse_open
MpegTSContext * avpriv_mpegts_parse_open(AVFormatContext *s)
Definition mpegts.c:3824
avpriv_mpegts_parse_packet
int avpriv_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len)
Definition mpegts.c:3846
host
char * host
Definition mscl.c:274
profile
int profile
Definition mxfenc.c:2299
Windows::Graphics::DirectX::Direct3D11::p
IDirect3DDxgiInterfaceAccess _COM_Outptr_ void ** p
Definition vsrc_gfxcapture_winrt.hpp:53
ff_network_init
int ff_network_init(void)
Initialize the network subsystem.
Definition network.c:63
ff_network_close
void ff_network_close(void)
Definition network.c:121
AI_NUMERICHOST
#define AI_NUMERICHOST
Definition network.h:187
POLLING_TIME
#define POLLING_TIME
Definition network.h:249
gai_strerror
#define gai_strerror
Definition network.h:225
NI_NUMERICHOST
#define NI_NUMERICHOST
Definition network.h:195
getaddrinfo
#define getaddrinfo
Definition network.h:217
getnameinfo
#define getnameinfo
Definition network.h:219
freeaddrinfo
#define freeaddrinfo
Definition network.h:218
av_strdup
#define av_strdup(s)
Definition ops_static.c:55
av_malloc
#define av_malloc(s)
Definition ops_static.c:52
opt.h
AVOptions.
os_support.h
miscellaneous OS support macros and functions.
av_parse_time
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
Parse timestr and return in *time a corresponding number of microseconds.
Definition parseutils.c:592
av_find_info_tag
int av_find_info_tag(char *arg, int arg_size, const char *tag1, const char *info)
Attempt to find a specific tag in a URL.
Definition parseutils.c:756
parseutils.h
misc parsing utilities
name
const char * name
Definition qsvenc.c:142
random_seed.h
ff_rdt_parse_open
RDTDemuxContext * ff_rdt_parse_open(AVFormatContext *ic, int first_stream_of_set_idx, void *priv_data, const RTPDynamicProtocolHandler *handler)
Allocate and init the RDT parsing context.
Definition rdt.c:57
ff_rdt_parse_packet
int ff_rdt_parse_packet(RDTDemuxContext *s, AVPacket *pkt, uint8_t **bufptr, int len)
Parse RDT-style packet data (header + media data).
Definition rdt.c:339
ff_rdt_parse_close
void ff_rdt_parse_close(RDTDemuxContext *s)
Definition rdt.c:80
ff_rdt_calc_response_and_checksum
void ff_rdt_calc_response_and_checksum(char response[41], char chksum[9], const char *challenge)
Calculate the response (RealChallenge2 in the RTSP header) to the challenge (RealChallenge1 in the RT...
Definition rdt.c:96
ff_real_parse_sdp_a_line
void ff_real_parse_sdp_a_line(AVFormatContext *s, int stream_index, const char *line)
Parse a server-related SDP line.
Definition rdt.c:519
codec_type
enum AVMediaType codec_type
Definition rtp.c:37
ff_rtp_get_codec_info
int ff_rtp_get_codec_info(AVCodecParameters *par, int payload_type)
Initialize a codec context based on the payload type.
Definition rtp.c:71
ff_rtp_codec_id
enum AVCodecID ff_rtp_codec_id(const char *buf, enum AVMediaType codec_type)
Return the codec id for the given encoding name and codec type.
Definition rtp.c:146
ff_rtp_enc_name
const char * ff_rtp_enc_name(int payload_type)
Return the encoding name (as defined in http://www.iana.org/assignments/rtp-parameters) for a given p...
Definition rtp.c:135
RTP_PT_IS_RTCP
#define RTP_PT_IS_RTCP(x)
Definition rtp.h:112
RTCP_BYE
@ RTCP_BYE
Definition rtp.h:102
RTP_PT_PRIVATE
#define RTP_PT_PRIVATE
Definition rtp.h:79
ff_rtp_parse_open
RTPDemuxContext * ff_rtp_parse_open(AVFormatContext *s1, AVStream *st, int payload_type, int queue_size)
open a new RTP parse context for stream 'st'.
Definition rtpdec.c:537
ff_rtp_parse_close
void ff_rtp_parse_close(RTPDemuxContext *s)
Definition rtpdec.c:941
ff_rtp_handler_find_by_id
const RTPDynamicProtocolHandler * ff_rtp_handler_find_by_id(int id, enum AVMediaType codec_type)
Find a registered rtp dynamic protocol handler with a matching codec ID.
Definition rtpdec.c:168
ff_rtp_check_and_send_back_rr
int ff_rtp_check_and_send_back_rr(RTPDemuxContext *s, URLContext *fd, AVIOContext *avio, int count)
some rtp servers assume client is dead if they don't hear from them... so we send a Receiver Report t...
Definition rtpdec.c:313
ff_rtp_parse_set_dynamic_protocol
void ff_rtp_parse_set_dynamic_protocol(RTPDemuxContext *s, PayloadContext *ctx, const RTPDynamicProtocolHandler *handler)
Definition rtpdec.c:580
ff_rtp_send_rtcp_feedback
int ff_rtp_send_rtcp_feedback(RTPDemuxContext *s, URLContext *fd, AVIOContext *avio)
Definition rtpdec.c:469
ff_rtp_parse_packet
int ff_rtp_parse_packet(RTPDemuxContext *s, AVPacket *pkt, uint8_t **bufptr, int len)
Parse an RTP or RTCP packet directly sent as a buffer.
Definition rtpdec.c:928
ff_rtp_queued_packet_time
int64_t ff_rtp_queued_packet_time(RTPDemuxContext *s)
Definition rtpdec.c:809
ff_rtp_handler_find_by_name
const RTPDynamicProtocolHandler * ff_rtp_handler_find_by_name(const char *name, enum AVMediaType codec_type)
Find a registered rtp dynamic protocol handler with the specified name.
Definition rtpdec.c:154
ff_rtp_parse_set_crypto
int ff_rtp_parse_set_crypto(RTPDemuxContext *s, const char *suite, const char *params)
Definition rtpdec.c:587
RTP_REORDER_QUEUE_DEFAULT_SIZE
#define RTP_REORDER_QUEUE_DEFAULT_SIZE
Definition rtpdec.h:39
ff_rtsp_next_attr_and_value
int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size)
RTP_MAX_PACKET_LENGTH
#define RTP_MAX_PACKET_LENGTH
Definition rtpdec.h:37
ff_wms_parse_sdp_a_line
int ff_wms_parse_sdp_a_line(AVFormatContext *s, const char *p)
Parse a Windows Media Server-specific SDP line.
Definition rtpdec_asf.c:102
rtpdec_formats.h
ff_mpegts_dynamic_handler
const RTPDynamicProtocolHandler ff_mpegts_dynamic_handler
Definition rtpdec_mpegts.c:92
parse_fmtp
static int parse_fmtp(AVFormatContext *s, AVStream *stream, PayloadContext *data, const char *attr, const char *value)
Definition rtpdec_latm.c:137
FF_RTP_FLAG_OPTS
#define FF_RTP_FLAG_OPTS(ctx, fieldname)
Definition rtpenc.h:74
ff_rtp_chain_mux_open
int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s, AVStream *st, URLContext *handle, int packet_size, int idx)
Definition rtpenc_chain.c:29
rtpenc_chain.h
ff_rtp_get_local_rtp_port
int ff_rtp_get_local_rtp_port(URLContext *h)
Return the local rtp port used by the RTP connection.
Definition rtpproto.c:514
ff_rtp_set_remote_url
int ff_rtp_set_remote_url(URLContext *h, const char *uri)
If no filename is given to av_open_input_file because you want to get the local port first,...
Definition rtpproto.c:110
sdp_options
static const AVOption sdp_options[]
Definition rtsp.c:113
get_word_until_chars
static void get_word_until_chars(char *buf, int buf_size, const char *sep, const char **pp)
Definition rtsp.c:169
DEFAULT_REORDERING_DELAY
#define DEFAULT_REORDERING_DELAY
Definition rtsp.c:64
ff_rtsp_open_transport_ctx
int ff_rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
Open RTSP transport context.
Definition rtsp.c:869
rtsp_parse_range_npt
static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
Parse a string p in the form of Range:npt=xx-xx, and determine the start and end time.
Definition rtsp.c:204
COMMON_OPTS
#define COMMON_OPTS()
Definition rtsp.c:81
map_to_opts
static AVDictionary * map_to_opts(RTSPState *rt)
Definition rtsp.c:134
get_word_sep
static void get_word_sep(char *buf, int buf_size, const char *sep, const char **pp)
Definition rtsp.c:188
rtp_options
static const AVOption rtp_options[]
Definition rtsp.c:124
copy_tls_opts_dict
static int copy_tls_opts_dict(RTSPState *rt, AVDictionary **dict)
Add the TLS options of the given RTSPState to the dict.
Definition rtsp.c:156
get_word
static void get_word(char *buf, int buf_size, const char **pp)
Definition rtsp.c:195
get_sockaddr
static int get_sockaddr(AVFormatContext *s, const char *buf, struct sockaddr_storage *sock)
Definition rtsp.c:226
ff_rtsp_options
const AVOption ff_rtsp_options[]
Definition rtsp.c:87
ERR_RET
#define ERR_RET(c)
Definition rtsp.c:146
ff_rtsp_close_streams
void ff_rtsp_close_streams(AVFormatContext *s)
Close and free all streams within the RTSP (de)muxer.
Definition rtsp.c:833
RECVBUF_SIZE
#define RECVBUF_SIZE
Definition rtsp.c:63
OFFSET
#define OFFSET(x)
Definition rtsp.c:66
READ_PACKET_TIMEOUT_S
#define READ_PACKET_TIMEOUT_S
Definition rtsp.c:62
RTSP_FLAG_OPTS
#define RTSP_FLAG_OPTS(name, longname)
Definition rtsp.c:70
ff_rtsp_undo_setup
void ff_rtsp_undo_setup(AVFormatContext *s, int send_packets)
Undo the effect of ff_rtsp_make_setup_request, close the transport_priv and rtp_handle fields.
Definition rtsp.c:800
RTSP_MEDIATYPE_OPTS
#define RTSP_MEDIATYPE_OPTS(name, longname)
Definition rtsp.c:74
ff_sdp_parse
int ff_sdp_parse(AVFormatContext *s, const char *content)
Parse an SDP description of streams by populating an RTSPState struct within the AVFormatContext; als...
RTSP_FLAG_LISTEN
#define RTSP_FLAG_LISTEN
Wait for incoming connections.
Definition rtsp.h:460
RTSP_SERVER_SATIP
@ RTSP_SERVER_SATIP
SAT>IP server.
Definition rtsp.h:217
RTSP_SERVER_WMS
@ RTSP_SERVER_WMS
Windows Media server.
Definition rtsp.h:216
RTSP_SERVER_RTP
@ RTSP_SERVER_RTP
Standards-compliant RTP-server.
Definition rtsp.h:214
RTSP_SERVER_REAL
@ RTSP_SERVER_REAL
Realmedia-style server.
Definition rtsp.h:215
ff_rtsp_send_cmd
int ff_rtsp_send_cmd(AVFormatContext *s, const char *method, const char *url, const char *headers, RTSPMessageHeader *reply, unsigned char **content_ptr)
Send a command to the RTSP server and wait for the reply.
ff_rtsp_send_cmd_with_content_async_stored
int ff_rtsp_send_cmd_with_content_async_stored(AVFormatContext *s, const char *method, const char *url, const char *headers, const unsigned char *send_content, int send_content_length)
Send a command to the RTSP server, storing the reply on future reads.
ff_rtsp_setup_input_streams
int ff_rtsp_setup_input_streams(AVFormatContext *s, RTSPMessageHeader *reply)
Get the description of the stream and set up the RTSPStream child objects.
Definition rtspdec.c:721
RTSP_FLAG_SATIP_RAW
#define RTSP_FLAG_SATIP_RAW
Export SAT>IP stream as raw MPEG-TS.
Definition rtsp.h:465
ff_rtsp_read_reply
int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply, unsigned char **content_ptr, int return_on_interleaved_data, const char *method)
Read a RTSP message from the server, or prepare to read data packets if we're reading data interleave...
ff_rtsp_make_setup_request
int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port, int lower_transport, const char *real_challenge)
Do the SETUP requests for each stream for the chosen lower transport mode.
RTSP_DEFAULT_AUDIO_SAMPLERATE
#define RTSP_DEFAULT_AUDIO_SAMPLERATE
Definition rtsp.h:78
ff_rtsp_send_cmd_async
int ff_rtsp_send_cmd_async(AVFormatContext *s, const char *method, const char *url, const char *headers)
Send a command to the RTSP server without waiting for the reply.
ff_rtsp_skip_packet
int ff_rtsp_skip_packet(AVFormatContext *s)
Skip a RTP/TCP interleaved packet.
RTSP_FLAG_FILTER_SRC
#define RTSP_FLAG_FILTER_SRC
Filter incoming UDP packets - receive packets only from the right source address and port.
Definition rtsp.h:457
RTSP_FLAG_CUSTOM_IO
#define RTSP_FLAG_CUSTOM_IO
Do all IO via the AVIOContext.
Definition rtsp.h:461
ff_rtsp_fetch_packet
int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
Receive one packet from the RTSPStreams set up in the AVFormatContext (which should contain a RTSPSta...
RTSP_MAX_TRANSPORTS
#define RTSP_MAX_TRANSPORTS
Definition rtsp.h:77
ff_rtsp_parse_line
void ff_rtsp_parse_line(AVFormatContext *s, RTSPMessageHeader *reply, const char *buf, RTSPState *rt, const char *method)
RTSPS_DEFAULT_PORT
#define RTSPS_DEFAULT_PORT
Definition rtsp.h:76
ff_rtsp_send_cmd_with_content_async
int ff_rtsp_send_cmd_with_content_async(AVFormatContext *s, const char *method, const char *url, const char *headers, const unsigned char *send_content, int send_content_length)
Send a command to the RTSP server without waiting for the reply.
RTSP_LOWER_TRANSPORT_TCP
@ RTSP_LOWER_TRANSPORT_TCP
TCP; interleaved in RTSP.
Definition rtsp.h:41
RTSP_LOWER_TRANSPORT_HTTP
@ RTSP_LOWER_TRANSPORT_HTTP
HTTP tunneled - not a proper transport mode as such, only for use via AVOptions.
Definition rtsp.h:44
RTSP_LOWER_TRANSPORT_NB
@ RTSP_LOWER_TRANSPORT_NB
Definition rtsp.h:43
RTSP_LOWER_TRANSPORT_UDP_MULTICAST
@ RTSP_LOWER_TRANSPORT_UDP_MULTICAST
UDP/multicast.
Definition rtsp.h:42
RTSP_LOWER_TRANSPORT_CUSTOM
@ RTSP_LOWER_TRANSPORT_CUSTOM
Custom IO - not a public option for lower_transport_mask, but set in the SDP demuxer based on a flag.
Definition rtsp.h:48
RTSP_LOWER_TRANSPORT_UDP
@ RTSP_LOWER_TRANSPORT_UDP
UDP/unicast.
Definition rtsp.h:40
RTSP_LOWER_TRANSPORT_HTTPS
@ RTSP_LOWER_TRANSPORT_HTTPS
HTTPS tunneled.
Definition rtsp.h:47
ff_rtsp_parse_streaming_commands
int ff_rtsp_parse_streaming_commands(AVFormatContext *s)
Parse RTSP commands (OPTIONS, PAUSE and TEARDOWN) during streaming in listen mode.
Definition rtspdec.c:486
RTSP_RTP_PORT_MIN
#define RTSP_RTP_PORT_MIN
Definition rtsp.h:79
RTSP_MODE_PLAIN
@ RTSP_MODE_PLAIN
Normal RTSP.
Definition rtsp.h:71
RTSP_MODE_TUNNEL
@ RTSP_MODE_TUNNEL
RTSP over HTTP (tunneling).
Definition rtsp.h:72
ff_rtsp_read_reply_async_stored
int ff_rtsp_read_reply_async_stored(AVFormatContext *s, RTSPMessageHeader **reply, unsigned char **content_ptr)
Retrieve a previously stored RTSP reply message from the server.
ff_rtsp_close_connections
void ff_rtsp_close_connections(AVFormatContext *s)
Close all connection handles within the RTSP (de)muxer.
RTSP_STATE_STREAMING
@ RTSP_STATE_STREAMING
initialized and sending/receiving data
Definition rtsp.h:204
RTSP_STATE_IDLE
@ RTSP_STATE_IDLE
not initialized
Definition rtsp.h:203
RTSP_FLAG_PREFER_TCP
#define RTSP_FLAG_PREFER_TCP
Try RTP via TCP first if possible.
Definition rtsp.h:464
ff_rtsp_send_cmd_with_content
int ff_rtsp_send_cmd_with_content(AVFormatContext *s, const char *method, const char *url, const char *headers, RTSPMessageHeader *reply, unsigned char **content_ptr, const unsigned char *send_content, int send_content_length)
Send a command to the RTSP server and wait for the reply.
ff_rtsp_tcp_write_packet
int ff_rtsp_tcp_write_packet(AVFormatContext *s, RTSPStream *rtsp_st)
Send buffered packets over TCP.
Definition rtspenc.c:143
SDP_MAX_SIZE
#define SDP_MAX_SIZE
Definition rtsp.h:81
RTSP_DEFAULT_PORT
#define RTSP_DEFAULT_PORT
Definition rtsp.h:75
ff_rtsp_tcp_read_packet
int ff_rtsp_tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st, uint8_t *buf, int buf_size)
Receive one RTP packet from an TCP interleaved RTSP stream.
Definition rtspdec.c:892
RTSP_RTP_PORT_MAX
#define RTSP_RTP_PORT_MAX
Definition rtsp.h:80
ff_rtsp_connect
int ff_rtsp_connect(AVFormatContext *s)
Connect to the RTSP server and set up the individual media streams.
RTSP_TRANSPORT_RTP
@ RTSP_TRANSPORT_RTP
Standards-compliant RTP.
Definition rtsp.h:60
RTSP_TRANSPORT_RAW
@ RTSP_TRANSPORT_RAW
Raw data (over UDP).
Definition rtsp.h:62
RTSP_TRANSPORT_RDT
@ RTSP_TRANSPORT_RDT
Realmedia Data Transport.
Definition rtsp.h:61
ff_rtsp_setup_output_streams
int ff_rtsp_setup_output_streams(AVFormatContext *s, const char *addr)
Announce the stream to the server and set up the RTSPStream child objects for each media stream.
Definition rtspenc.c:47
RTSP_FLAG_RTCP_TO_SOURCE
#define RTSP_FLAG_RTCP_TO_SOURCE
Send RTCP packets to the source address of received packets.
Definition rtsp.h:462
RTSP_STATUS_OK
@ RTSP_STATUS_OK
Definition rtspcodes.h:33
ff_rtsp_averror
static int ff_rtsp_averror(enum RTSPStatusCode status_code, int default_averror)
Definition rtspcodes.h:144
header
static const uint8_t header[24]
Definition sdr2.c:68
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition sinewin_tablegen.c:29
AVBPrint
Buffer to print data progressively.
Definition bprint.h:99
AVBPrint::len
unsigned len
length so far
Definition bprint.h:99
AVBPrint::str
char * str
string so far
Definition bprint.h:99
AVChannelLayout
An AVChannelLayout holds information about the channel layout of audio data.
Definition channel_layout.h:328
AVChannelLayout::nb_channels
int nb_channels
Number of channels in this layout.
Definition channel_layout.h:338
AVClass
Describe the class of an AVClass context structure.
Definition log.h:76
AVCodecDescriptor
This struct describes the properties of a single codec described by an AVCodecID.
Definition codec_desc.h:38
AVCodecParameters
This struct describes the properties of an encoded stream.
Definition codec_par.h:49
AVCodecParameters::ch_layout
AVChannelLayout ch_layout
The channel layout and number of channels.
Definition codec_par.h:207
AVCodecParameters::codec_type
enum AVMediaType codec_type
General type of the encoded data.
Definition codec_par.h:53
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition codec_par.h:57
AVCodecParameters::sample_rate
int sample_rate
The number of audio samples per second.
Definition codec_par.h:213
AVFormatContext
Format I/O context.
Definition avformat.h:1335
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition avformat.h:1377
AVIOContext
Bytestream IO Context.
Definition avio.h:160
AVOption
AVOption.
Definition opt.h:428
AVPacket
This structure stores compressed data.
Definition packet.h:580
AVProbeData
This structure contains the data a format has to probe a file.
Definition avformat.h:473
AVProbeData::buf_size
int buf_size
Size of buf except extra allocated bytes.
Definition avformat.h:476
AVProbeData::buf
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
Definition avformat.h:475
AVStream
Stream structure.
Definition avformat.h:768
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition avformat.h:791
AVStream::metadata
AVDictionary * metadata
Definition avformat.h:848
AVStream::id
int id
Format-specific stream ID.
Definition avformat.h:780
AVStream::index
int index
stream index in AVFormatContext
Definition avformat.h:774
AVStream::avg_frame_rate
AVRational avg_frame_rate
Average framerate.
Definition avformat.h:857
AVStream::time_base
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented.
Definition avformat.h:807
FFStream::need_parsing
enum AVStreamParseType need_parsing
Definition internal.h:321
HTTPAuthState::stale
int stale
Auth ok, but needs to be resent with a new nonce.
Definition httpauth.h:71
HTTPAuthState::auth_type
int auth_type
The currently chosen auth type.
Definition httpauth.h:59
RTPDemuxContext::first_rtcp_ntp_time
uint64_t first_rtcp_ntp_time
Definition rtpdec.h:177
RTPDemuxContext::base_timestamp
uint32_t base_timestamp
Definition rtpdec.h:155
RTPDemuxContext::ssrc
uint32_t ssrc
Definition rtpdec.h:152
RTPDemuxContext::rtcp_ts_offset
int64_t rtcp_ts_offset
Definition rtpdec.h:178
RTPDemuxContext::st
AVStream * st
Definition rtpdec.h:150
RTPDynamicProtocolHandler::parse_sdp_a_line
int(* parse_sdp_a_line)(AVFormatContext *s, int st_index, PayloadContext *priv_data, const char *line)
Parse the a= line from the sdp field.
Definition rtpdec.h:129
RTPDynamicProtocolHandler::close
void(* close)(PayloadContext *protocol_data)
Free any data needed by the rtp parsing for this dynamic data.
Definition rtpdec.h:134
RTPDynamicProtocolHandler::init
int(* init)(AVFormatContext *s, int st_index, PayloadContext *priv_data)
Initialize dynamic protocol handler, called after the full rtpmap line is parsed, may be null.
Definition rtpdec.h:127
RTSPMessageHeader
This describes the server response to each RTSP command.
Definition rtsp.h:129
RTSPMessageHeader::reason
char reason[256]
The "reason" is meant to specify better the meaning of the error code returned.
Definition rtsp.h:184
RTSPMessageHeader::real_challenge
char real_challenge[64]
the "RealChallenge1:" field from the server
Definition rtsp.h:157
RTSPMessageHeader::location
char location[4096]
the "Location:" field.
Definition rtsp.h:154
RTSPMessageHeader::notice
int notice
The "Notice" or "X-Notice" field value.
Definition rtsp.h:179
RTSPMessageHeader::range_start
int64_t range_start
Time range of the streams that the server will stream.
Definition rtsp.h:140
RTSPMessageHeader::timeout
int timeout
The "timeout" comes as part of the server response to the "SETUP" command, in the "Session: <xyz>[;ti...
Definition rtsp.h:174
RTSPMessageHeader::session_id
char session_id[512]
the "Session:" field.
Definition rtsp.h:150
RTSPMessageHeader::server
char server[64]
the "Server: field, which can be used to identify some special-case servers that are not 100% standar...
Definition rtsp.h:166
RTSPMessageHeader::status_code
enum RTSPStatusCode status_code
response code from server
Definition rtsp.h:133
RTSPMessageHeader::seq
int seq
sequence number
Definition rtsp.h:146
RTSPMessageHeader::content_type
char content_type[64]
Content type header.
Definition rtsp.h:189
RTSPMessageHeader::transports
RTSPTransportField transports[RTSP_MAX_TRANSPORTS]
describes the complete "Transport:" line of the server in response to a SETUP RTSP command by the cli...
Definition rtsp.h:144
RTSPMessageHeader::range_end
int64_t range_end
Definition rtsp.h:140
RTSPMessageHeader::stream_id
char stream_id[64]
SAT>IP com.ses.streamID header.
Definition rtsp.h:194
RTSPMessageHeader::nb_transports
int nb_transports
number of items in the 'transports' variable below
Definition rtsp.h:136
RTSPMessageHeader::content_length
int content_length
length of the data following this header
Definition rtsp.h:131
RTSPSource::addr
char addr[128]
Source-specific multicast include source IP address (from SDP content).
Definition rtsp.h:468
RTSPState
Private data for the RTSP demuxer.
Definition rtsp.h:226
RTSPState::header
RTSPMessageHeader * header
Last stored reply message from the RTSP server.
Definition rtsp.h:303
RTSPState::real_challenge
char real_challenge[64]
the "RealChallenge1:" field from the server
Definition rtsp.h:278
RTSPState::recvbuf_len
int recvbuf_len
Definition rtsp.h:353
RTSPState::nb_rtsp_streams
int nb_rtsp_streams
number of items in the 'rtsp_streams' variable
Definition rtsp.h:231
RTSPState::transport
enum RTSPTransport transport
the negotiated data/packet transport protocol; e.g.
Definition rtsp.h:266
RTSPState::rtp_port_max
int rtp_port_max
Definition rtsp.h:418
RTSPState::asf_ctx
AVFormatContext * asf_ctx
The following are used for RTP/ASF streams.
Definition rtsp.h:337
RTSPState::timeout
int timeout
copy of RTSPMessageHeader->timeout, i.e.
Definition rtsp.h:258
RTSPState::tls_opts
struct RTSPState::@252032344213367267171314033051017303322026071151 tls_opts
Options used for TLS based RTSP streams.
RTSPState::accept_dynamic_rate
int accept_dynamic_rate
Whether the server accepts the x-Dynamic-Rate header.
Definition rtsp.h:403
RTSPState::auth_state
HTTPAuthState auth_state
authentication state
Definition rtsp.h:284
RTSPState::stimeout
int64_t stimeout
timeout of socket i/o operations.
Definition rtsp.h:428
RTSPState::rtsp_hd_out
URLContext * rtsp_hd_out
Additional output handle, used when input and output are done separately, eg for HTTP tunneling.
Definition rtsp.h:358
RTSPState::lower_transport_mask
int lower_transport_mask
A mask with all requested transport methods.
Definition rtsp.h:374
RTSPState::lower_transport
enum RTSPLowerTransport lower_transport
the negotiated network layer transport protocol; e.g.
Definition rtsp.h:270
RTSPState::max_p
int max_p
Definition rtsp.h:385
RTSPState::stored_msg
struct RTSPState::@211246031337226306262152230103102050134060150124 stored_msg
Stored message context This is used to store the last reply marked to be stored with ff_rtsp_send_cmd...
RTSPState::localaddr
char * localaddr
Definition rtsp.h:443
RTSPState::last_cmd_time
int64_t last_cmd_time
timestamp of the last RTSP command that we sent to the RTSP server.
Definition rtsp.h:263
RTSPState::need_subscription
int need_subscription
The following are used for Real stream selection.
Definition rtsp.h:318
RTSPState::session_id
char session_id[512]
copy of RTSPMessageHeader->session_id, i.e.
Definition rtsp.h:253
RTSPState::media_type_mask
int media_type_mask
Mask of all requested media types.
Definition rtsp.h:413
RTSPState::pending_packet
int pending_packet
Indicates if a packet is pending to be read (useful for interleaved reads).
Definition rtsp.h:309
RTSPState::ca_file
char * ca_file
Definition rtsp.h:449
RTSPState::ts
struct MpegTSContext * ts
The following are used for parsing raw mpegts in udp.
Definition rtsp.h:351
RTSPState::server_type
enum RTSPServerType server_type
brand of server that we're talking to; e.g.
Definition rtsp.h:275
RTSPState::recvbuf
uint8_t * recvbuf
Reusable buffer for receiving packets.
Definition rtsp.h:369
RTSPState::user_agent
char * user_agent
User-Agent string.
Definition rtsp.h:438
RTSPState::body
unsigned char * body
Last stored reply message body from the RTSP server.
Definition rtsp.h:305
RTSPState::rtsp_flags
int rtsp_flags
Various option flags for the RTSP muxer/demuxer.
Definition rtsp.h:408
RTSPState::expected_seq
int expected_seq
Sequence number of the reply to be stored -1 if we are not waiting to store any message.
Definition rtsp.h:301
RTSPState::seek_timestamp
int64_t seek_timestamp
the seek value requested when calling av_seek_frame().
Definition rtsp.h:247
RTSPState::control_uri
char control_uri[MAX_URL_SIZE]
some MS RTSP streams contain a URL in the SDP that we need to use for all subsequent RTSP requests,...
Definition rtsp.h:347
RTSPState::cert_file
char * cert_file
Definition rtsp.h:451
RTSPState::control_transport
enum RTSPControlTransport control_transport
RTSP transport mode, such as plain or tunneled.
Definition rtsp.h:361
RTSPState::cur_transport_priv
void * cur_transport_priv
RTSPStream->transport_priv of the last stream that we read a packet from.
Definition rtsp.h:313
RTSPState::buffer_size
int buffer_size
Definition rtsp.h:441
RTSPState::reordering_queue_size
int reordering_queue_size
Size of RTP packet reordering queue.
Definition rtsp.h:433
RTSPState::host
char * host
Definition rtsp.h:453
RTSPState::auth
char auth[128]
plaintext authorization line (username:password)
Definition rtsp.h:281
RTSPState::rtsp_hd
URLContext * rtsp_hd
Definition rtsp.h:228
RTSPState::rtp_port_min
int rtp_port_min
Minimum and maximum local UDP ports.
Definition rtsp.h:418
RTSPState::state
enum RTSPClientState state
indicator of whether we are currently receiving data from the server.
Definition rtsp.h:239
RTSPState::recvbuf_pos
int recvbuf_pos
Definition rtsp.h:352
RTSPState::key_file
char * key_file
Definition rtsp.h:452
RTSPState::seq
int seq
RTSP command sequence number.
Definition rtsp.h:249
RTSPState::verify
int verify
Definition rtsp.h:450
RTSPState::pkt_size
int pkt_size
Definition rtsp.h:442
RTSPState::nb_byes
int nb_byes
Definition rtsp.h:366
RTSPState::rtsp_streams
struct RTSPStream ** rtsp_streams
streams in this session
Definition rtsp.h:233
RTSPState::default_lang
char default_lang[4]
Definition rtsp.h:440
RTSPState::p
struct pollfd * p
Polling array for udp.
Definition rtsp.h:384
RTSPState::get_parameter_supported
int get_parameter_supported
Whether the server supports the GET_PARAMETER method.
Definition rtsp.h:390
RTSPState::last_reply
char last_reply[2048]
The last reply of the server to a RTSP command.
Definition rtsp.h:287
RTSPStream
Describe a single stream, as identified by a single m= line block in the SDP content.
Definition rtsp.h:477
RTSPStream::exclude_source_addrs
struct RTSPSource ** exclude_source_addrs
Source-specific multicast exclude source IP addresses (from SDP content).
Definition rtsp.h:497
RTSPStream::crypto_suite
char crypto_suite[40]
Definition rtsp.h:517
RTSPStream::sdp_ttl
int sdp_ttl
IP Time-To-Live (from SDP content).
Definition rtsp.h:498
RTSPStream::dynamic_handler
const RTPDynamicProtocolHandler * dynamic_handler
The following are used for dynamic protocols (rtpdec_*.c/rdt.c).
Definition rtsp.h:505
RTSPStream::sdp_port
int sdp_port
The following are used only in SDP, not RTSP.
Definition rtsp.h:492
RTSPStream::nb_include_source_addrs
int nb_include_source_addrs
Number of source-specific multicast include source IP addresses (from SDP content).
Definition rtsp.h:494
RTSPStream::crypto_params
char crypto_params[100]
Definition rtsp.h:518
RTSPStream::interleaved_min
int interleaved_min
interleave IDs; copies of RTSPTransportField->interleaved_min/max for the selected transport.
Definition rtsp.h:486
RTSPStream::control_url
char control_url[MAX_URL_SIZE]
url for this stream (from SDP)
Definition rtsp.h:488
RTSPStream::sdp_payload_type
int sdp_payload_type
payload type
Definition rtsp.h:499
RTSPStream::rtp_handle
URLContext * rtp_handle
RTP stream handle (if UDP).
Definition rtsp.h:478
RTSPStream::interleaved_max
int interleaved_max
Definition rtsp.h:486
RTSPStream::stream_index
int stream_index
corresponding stream index, if any.
Definition rtsp.h:482
RTSPStream::include_source_addrs
struct RTSPSource ** include_source_addrs
Source-specific multicast include source IP addresses (from SDP content).
Definition rtsp.h:495
RTSPStream::feedback
int feedback
Enable sending RTCP feedback messages according to RFC 4585.
Definition rtsp.h:512
RTSPStream::dynamic_protocol_context
PayloadContext * dynamic_protocol_context
private data associated with the dynamic protocol
Definition rtsp.h:508
RTSPStream::transport_priv
void * transport_priv
RTP/RDT parse context if input, RTP AVFormatContext if output.
Definition rtsp.h:479
RTSPStream::ssrc
uint32_t ssrc
SSRC for this stream, to allow identifying RTCP packets before the first RTP packet.
Definition rtsp.h:515
RTSPStream::nb_exclude_source_addrs
int nb_exclude_source_addrs
Number of source-specific multicast exclude source IP addresses (from SDP content).
Definition rtsp.h:496
RTSPStream::sdp_ip
struct sockaddr_storage sdp_ip
IP address (from SDP content).
Definition rtsp.h:493
RTSPTransportField
This describes a single item in the "Transport:" line of one stream as negotiated by the SETUP RTSP c...
Definition rtsp.h:90
RTSPTransportField::server_port_min
int server_port_min
UDP unicast server port range; the ports to which we should connect to receive unicast UDP RTP/RTCP d...
Definition rtsp.h:107
RTSPTransportField::interleaved_max
int interleaved_max
Definition rtsp.h:95
RTSPTransportField::client_port_min
int client_port_min
UDP client ports; these should be the local ports of the UDP RTP (and RTCP) sockets over which we rec...
Definition rtsp.h:103
RTSPTransportField::source
char source[INET6_ADDRSTRLEN+1]
source IP address
Definition rtsp.h:117
RTSPTransportField::transport
enum RTSPTransport transport
data/packet transport protocol; e.g.
Definition rtsp.h:120
RTSPTransportField::mode_record
int mode_record
transport set to record data
Definition rtsp.h:114
RTSPTransportField::destination
struct sockaddr_storage destination
destination IP address
Definition rtsp.h:116
RTSPTransportField::ttl
int ttl
time-to-live value (required for multicast); the amount of HOPs that packets will be allowed to make ...
Definition rtsp.h:111
RTSPTransportField::client_port_max
int client_port_max
Definition rtsp.h:103
RTSPTransportField::lower_transport
enum RTSPLowerTransport lower_transport
network layer transport protocol; e.g.
Definition rtsp.h:123
RTSPTransportField::port_min
int port_min
UDP multicast port range; the ports to which we should connect to receive multicast UDP data.
Definition rtsp.h:99
RTSPTransportField::interleaved_min
int interleaved_min
interleave ids, if TCP transport; each TCP/RTSP data packet starts with a '$', stream length and stre...
Definition rtsp.h:95
RTSPTransportField::server_port_max
int server_port_max
Definition rtsp.h:107
URLContext::priv_data
void * priv_data
Definition url.h:38
URLContext::protocol_whitelist
const char * protocol_whitelist
Definition url.h:47
URLContext::protocol_blacklist
const char * protocol_blacklist
Definition url.h:48
addrinfo::ai_flags
int ai_flags
Definition network.h:138
sockaddr_storage
Definition network.h:111
sockaddr_storage::ss_family
uint16_t ss_family
Definition network.h:116
av_free
#define av_free(p)
Definition tableprint_vlc.h:34
av_malloc_array
#define av_malloc_array(a, b)
Definition tableprint_vlc.h:32
av_mallocz
#define av_mallocz(s)
Definition tableprint_vlc.h:31
av_freep
#define av_freep(p)
Definition tableprint_vlc.h:35
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
framerate
float framerate
Definition av1_levels.c:29
av_gettime_relative
int64_t av_gettime_relative(void)
Get the current time in microseconds since some unspecified starting point.
Definition time.c:57
FF_TLS_CLIENT_OPTIONS
#define FF_TLS_CLIENT_OPTIONS(pstruct, options_field)
Definition tls.h:90
size
int size
Definition twinvq_data.h:10344
ff_url_join
int ff_url_join(char *str, int size, const char *proto, const char *authorization, const char *hostname, int port, const char *fmt,...)
Definition url.c:40
url.h
unbuffered private I/O API
ffurl_write
static int ffurl_write(URLContext *h, const uint8_t *buf, int size)
Write size bytes from buf to the resource accessed by h.
Definition url.h:205
ffurl_read
static int ffurl_read(URLContext *h, uint8_t *buf, int size)
Read up to size bytes from the resource accessed by h, and store the read bytes in buf.
Definition url.h:184
len
int len
Definition vorbis_enc_data.h:426
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