aarch64: Add assembly support for -fsanitize=hwaddress tagged globals.
[libav.git] / libavformat / rtsp.c
CommitLineData
1617ad97 1/*
93ced3e8 2 * RTSP/SDP client
406792e7 3 * Copyright (c) 2002 Fabrice Bellard
1617ad97 4 *
2912e87a 5 * This file is part of Libav.
b78e7197 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
1617ad97
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
1617ad97 11 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
1617ad97
FB
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
2912e87a 18 * License along with Libav; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
1617ad97 20 */
245976da 21
f9337897 22#include "libavutil/base64.h"
245976da 23#include "libavutil/avstring.h"
6a5d31ac 24#include "libavutil/intreadwrite.h"
0ebcdf5c 25#include "libavutil/mathematics.h"
9fcae973 26#include "libavutil/parseutils.h"
f5d33f52 27#include "libavutil/random_seed.h"
d2d67e42 28#include "libavutil/dict.h"
d450cc4f 29#include "libavutil/opt.h"
c4ef6a3e 30#include "libavutil/time.h"
1617ad97 31#include "avformat.h"
e731b8d8 32#include "avio_internal.h"
1617ad97 33
a8475bbd
LB
34#if HAVE_POLL_H
35#include <poll.h>
6ad1c9c9 36#endif
e4a9e3cc 37#include "internal.h"
42572ef5 38#include "network.h"
cbfa66d0 39#include "os_support.h"
f5d33f52 40#include "http.h"
c971ff19 41#include "rtsp.h"
1617ad97 42
302879cb 43#include "rtpdec.h"
b7e6da98 44#include "rtpproto.h"
e9dea59f 45#include "rdt.h"
965a3ddb 46#include "rtpdec_formats.h"
a493f80a 47#include "rtpenc_chain.h"
5652bb94 48#include "url.h"
17fff881 49#include "rtpenc.h"
1243c722 50#include "mpegts.h"
4934884a 51
a8475bbd 52/* Timeout values for socket poll, in ms,
9cba6f5f 53 * and read_packet(), in seconds */
a8475bbd 54#define POLL_TIMEOUT_MS 100
9cba6f5f 55#define READ_PACKET_TIMEOUT_S 10
a8475bbd 56#define MAX_TIMEOUTS READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS
91af5601 57#define SDP_MAX_SIZE 16384
96a7c975 58#define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
ccfa8aa2 59#define DEFAULT_REORDERING_DELAY 100000
9cba6f5f 60
2c9aa024
MS
61#define OFFSET(x) offsetof(RTSPState, x)
62#define DEC AV_OPT_FLAG_DECODING_PARAM
eca4850c 63#define ENC AV_OPT_FLAG_ENCODING_PARAM
3a6765fb
MS
64
65#define RTSP_FLAG_OPTS(name, longname) \
d58dd4b5 66 { name, longname, OFFSET(rtsp_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC, "rtsp_flags" }, \
f4d371b9 67 { "filter_src", "Only receive packets from the negotiated peer IP", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_FILTER_SRC}, 0, 0, DEC, "rtsp_flags" }
3a6765fb 68
f011fcd6 69#define RTSP_MEDIATYPE_OPTS(name, longname) \
d58dd4b5 70 { name, longname, OFFSET(media_type_mask), AV_OPT_TYPE_FLAGS, { .i64 = (1 << (AVMEDIA_TYPE_DATA+1)) - 1 }, INT_MIN, INT_MAX, DEC, "allowed_media_types" }, \
124134e4
MS
71 { "video", "Video", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_VIDEO}, 0, 0, DEC, "allowed_media_types" }, \
72 { "audio", "Audio", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_AUDIO}, 0, 0, DEC, "allowed_media_types" }, \
73 { "data", "Data", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_DATA}, 0, 0, DEC, "allowed_media_types" }
f011fcd6 74
e3ec6fe7
LB
75#define COMMON_OPTS() \
76 { "reorder_queue_size", "Number of packets to buffer for handling of reordered packets", OFFSET(reordering_queue_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC }, \
1e561735
TM
77 { "buffer_size", "Underlying protocol send/receive buffer size", OFFSET(buffer_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC|ENC }, \
78 { "pkt_size", "Underlying protocol send packet size", OFFSET(pkt_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, ENC } \
e3ec6fe7 79
3f055f8f 80
17fff881 81const AVOption ff_rtsp_options[] = {
e6153f17 82 { "initial_pause", "Don't start playing the stream immediately", OFFSET(initial_pause), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1, DEC },
5354a904 83 FF_RTP_FLAG_OPTS(RTSPState, rtp_muxer_flags),
d58dd4b5 84 { "rtsp_transport", "RTSP transport protocols", OFFSET(lower_transport_mask), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC|ENC, "rtsp_transport" }, \
124134e4
MS
85 { "udp", "UDP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP}, 0, 0, DEC|ENC, "rtsp_transport" }, \
86 { "tcp", "TCP", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_TCP}, 0, 0, DEC|ENC, "rtsp_transport" }, \
87 { "udp_multicast", "UDP multicast", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << RTSP_LOWER_TRANSPORT_UDP_MULTICAST}, 0, 0, DEC, "rtsp_transport" },
88 { "http", "HTTP tunneling", 0, AV_OPT_TYPE_CONST, {.i64 = (1 << RTSP_LOWER_TRANSPORT_HTTP)}, 0, 0, DEC, "rtsp_transport" },
3a6765fb 89 RTSP_FLAG_OPTS("rtsp_flags", "RTSP flags"),
f4d371b9 90 { "listen", "Wait for incoming connections", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_LISTEN}, 0, 0, DEC, "rtsp_flags" },
f011fcd6 91 RTSP_MEDIATYPE_OPTS("allowed_media_types", "Media types to accept from the server"),
e6153f17
MS
92 { "min_port", "Minimum local UDP port", OFFSET(rtp_port_min), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MIN}, 0, 65535, DEC|ENC },
93 { "max_port", "Maximum local UDP port", OFFSET(rtp_port_max), AV_OPT_TYPE_INT, {.i64 = RTSP_RTP_PORT_MAX}, 0, 65535, DEC|ENC },
94 { "timeout", "Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen", OFFSET(initial_timeout), AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX, DEC },
e3ec6fe7 95 COMMON_OPTS(),
17fff881
MS
96 { NULL },
97};
98
51369f28
MS
99static const AVOption sdp_options[] = {
100 RTSP_FLAG_OPTS("sdp_flags", "SDP flags"),
e96406ed 101 { "custom_io", "Use custom IO", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_CUSTOM_IO}, 0, 0, DEC, "rtsp_flags" },
b56fc18b 102 { "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, "rtsp_flags" },
f011fcd6 103 RTSP_MEDIATYPE_OPTS("allowed_media_types", "Media types to accept from the server"),
e3ec6fe7 104 COMMON_OPTS(),
51369f28
MS
105 { NULL },
106};
107
108static const AVOption rtp_options[] = {
109 RTSP_FLAG_OPTS("rtp_flags", "RTP flags"),
e3ec6fe7 110 COMMON_OPTS(),
51369f28
MS
111 { NULL },
112};
113
e3ec6fe7
LB
114
115static AVDictionary *map_to_opts(RTSPState *rt)
116{
117 AVDictionary *opts = NULL;
118 char buf[256];
119
120 snprintf(buf, sizeof(buf), "%d", rt->buffer_size);
121 av_dict_set(&opts, "buffer_size", buf, 0);
1e561735
TM
122 snprintf(buf, sizeof(buf), "%d", rt->pkt_size);
123 av_dict_set(&opts, "pkt_size", buf, 0);
e3ec6fe7
LB
124
125 return opts;
126}
127
1ef36a70
RB
128static void get_word_until_chars(char *buf, int buf_size,
129 const char *sep, const char **pp)
1617ad97
FB
130{
131 const char *p;
132 char *q;
133
134 p = *pp;
30619e6e 135 p += strspn(p, SPACE_CHARS);
1617ad97
FB
136 q = buf;
137 while (!strchr(sep, *p) && *p != '\0') {
138 if ((q - buf) < buf_size - 1)
139 *q++ = *p;
140 p++;
141 }
142 if (buf_size > 0)
143 *q = '\0';
144 *pp = p;
145}
146
1ef36a70
RB
147static void get_word_sep(char *buf, int buf_size, const char *sep,
148 const char **pp)
1617ad97 149{
1ef36a70
RB
150 if (**pp == '/') (*pp)++;
151 get_word_until_chars(buf, buf_size, sep, pp);
152}
1617ad97 153
1ef36a70
RB
154static void get_word(char *buf, int buf_size, const char **pp)
155{
156 get_word_until_chars(buf, buf_size, SPACE_CHARS, pp);
1617ad97
FB
157}
158
8bf0f969
MS
159/** Parse a string p in the form of Range:npt=xx-xx, and determine the start
160 * and end time.
161 * Used for seeking in the rtp stream.
162 */
163static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
164{
165 char buf[256];
166
167 p += strspn(p, SPACE_CHARS);
168 if (!av_stristart(p, "npt=", &p))
169 return;
170
171 *start = AV_NOPTS_VALUE;
172 *end = AV_NOPTS_VALUE;
173
174 get_word_sep(buf, sizeof(buf), "-", &p);
eb7ddb50 175 if (av_parse_time(start, buf, 1) < 0)
4e544321 176 return;
8bf0f969
MS
177 if (*p == '-') {
178 p++;
179 get_word_sep(buf, sizeof(buf), "-", &p);
eb7ddb50 180 av_parse_time(end, buf, 1);
8bf0f969 181 }
8bf0f969
MS
182}
183
2c17fb61
LB
184static int get_sockaddr(AVFormatContext *s,
185 const char *buf, struct sockaddr_storage *sock)
8bf0f969 186{
a92be9b8 187 struct addrinfo hints = { 0 }, *ai = NULL;
2c17fb61
LB
188 int ret;
189
8bf0f969 190 hints.ai_flags = AI_NUMERICHOST;
2c17fb61
LB
191 if ((ret = getaddrinfo(buf, NULL, &hints, &ai))) {
192 av_log(s, AV_LOG_ERROR, "getaddrinfo(%s): %s\n",
193 buf,
194 gai_strerror(ret));
8bf0f969 195 return -1;
2c17fb61 196 }
8bf0f969
MS
197 memcpy(sock, ai->ai_addr, FFMIN(sizeof(*sock), ai->ai_addrlen));
198 freeaddrinfo(ai);
199 return 0;
200}
201
44b70ce5 202#if CONFIG_RTPDEC
003eb642 203static void init_rtp_handler(RTPDynamicProtocolHandler *handler,
b7a4c319 204 RTSPStream *rtsp_st, AVStream *st)
003eb642 205{
9200514a 206 AVCodecParameters *par = st ? st->codecpar : NULL;
003eb642
MS
207 if (!handler)
208 return;
9200514a
AK
209 if (par)
210 par->codec_id = handler->codec_id;
003eb642 211 rtsp_st->dynamic_handler = handler;
b7a4c319
MS
212 if (st)
213 st->need_parsing = handler->need_parsing;
f4b59334 214 if (handler->priv_data_size) {
e72605f8
MS
215 rtsp_st->dynamic_protocol_context = av_mallocz(handler->priv_data_size);
216 if (!rtsp_st->dynamic_protocol_context)
217 rtsp_st->dynamic_handler = NULL;
4b3dc857 218 }
003eb642
MS
219}
220
078d43e2
MS
221static void finalize_rtp_handler_init(AVFormatContext *s, RTSPStream *rtsp_st,
222 AVStream *st)
223{
224 if (rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->init) {
225 int ret = rtsp_st->dynamic_handler->init(s, st ? st->index : -1,
226 rtsp_st->dynamic_protocol_context);
227 if (ret < 0) {
228 if (rtsp_st->dynamic_protocol_context) {
d594dbec
MS
229 if (rtsp_st->dynamic_handler->close)
230 rtsp_st->dynamic_handler->close(
078d43e2
MS
231 rtsp_st->dynamic_protocol_context);
232 av_free(rtsp_st->dynamic_protocol_context);
233 }
234 rtsp_st->dynamic_protocol_context = NULL;
235 rtsp_st->dynamic_handler = NULL;
236 }
237 }
238}
239
c8965800 240/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */
8f3c87f3 241static int sdp_parse_rtpmap(AVFormatContext *s,
86b6e387 242 AVStream *st, RTSPStream *rtsp_st,
c8965800 243 int payload_type, const char *p)
93ced3e8 244{
9200514a 245 AVCodecParameters *par = st->codecpar;
93ced3e8 246 char buf[256];
d1ccf0e0 247 int i;
3fdffc03 248 const AVCodecDescriptor *desc;
7b49ce2e 249 const char *c_name;
93ced3e8 250
3900d53f 251 /* See if we can handle this kind of payload.
9d50d396
RB
252 * The space should normally not be there but some Real streams or
253 * particular servers ("RealServer Version 6.1.3.970", see issue 1658)
254 * have a trailing space. */
255 get_word_sep(buf, sizeof(buf), "/ ", &p);
6099543a
MS
256 if (payload_type < RTP_PT_PRIVATE) {
257 /* We are in a standard case
258 * (from http://www.iana.org/assignments/rtp-parameters). */
9200514a 259 par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
6099543a
MS
260 }
261
9200514a 262 if (par->codec_id == AV_CODEC_ID_NONE) {
003eb642 263 RTPDynamicProtocolHandler *handler =
9200514a 264 ff_rtp_handler_find_by_name(buf, par->codec_type);
b7a4c319 265 init_rtp_handler(handler, rtsp_st, st);
160918d5
MS
266 /* If no dynamic handler was found, check with the list of standard
267 * allocated types, if such a stream for some reason happens to
268 * use a private payload type. This isn't handled in rtpdec.c, since
269 * the format name from the rtpmap line never is passed into rtpdec. */
270 if (!rtsp_st->dynamic_handler)
9200514a 271 par->codec_id = ff_rtp_codec_id(buf, par->codec_type);
d1ccf0e0
RD
272 }
273
3fdffc03
MS
274 desc = avcodec_descriptor_get(par->codec_id);
275 if (desc && desc->name)
276 c_name = desc->name;
d1ccf0e0 277 else
170870b7 278 c_name = "(null)";
d1ccf0e0 279
7515ed0c
RB
280 get_word_sep(buf, sizeof(buf), "/", &p);
281 i = atoi(buf);
9200514a 282 switch (par->codec_type) {
72415b2a 283 case AVMEDIA_TYPE_AUDIO:
7515ed0c 284 av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
9200514a
AK
285 par->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
286 par->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
7515ed0c 287 if (i > 0) {
9200514a
AK
288 par->sample_rate = i;
289 avpriv_set_pts_info(st, 32, 1, par->sample_rate);
7515ed0c
RB
290 get_word_sep(buf, sizeof(buf), "/", &p);
291 i = atoi(buf);
292 if (i > 0)
9200514a 293 par->channels = i;
d1ccf0e0 294 }
7515ed0c 295 av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
9200514a 296 par->sample_rate);
7515ed0c 297 av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n",
9200514a 298 par->channels);
7515ed0c 299 break;
72415b2a 300 case AVMEDIA_TYPE_VIDEO:
7515ed0c 301 av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
86b6e387 302 if (i > 0)
c3f9ebf7 303 avpriv_set_pts_info(st, 32, 1, i);
7515ed0c
RB
304 break;
305 default:
306 break;
307 }
078d43e2 308 finalize_rtp_handler_init(s, rtsp_st, st);
7515ed0c 309 return 0;
93ced3e8
FB
310}
311
c2bfd816 312/* parse the attribute line from the fmtp a line of an sdp response. This
c8965800
RB
313 * is broken out as a function because it is used in rtp_h264.c, which is
314 * forthcoming. */
3307e6ea 315int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
93993933 316 char *value, int value_size)
d0deedcb 317{
30619e6e 318 *p += strspn(*p, SPACE_CHARS);
c8965800 319 if (**p) {
d0deedcb
RM
320 get_word_sep(attr, attr_size, "=", p);
321 if (**p == '=')
322 (*p)++;
323 get_word_sep(value, value_size, ";", p);
324 if (**p == ';')
325 (*p)++;
326 return 1;
327 }
328 return 0;
329}
330
93ced3e8
FB
331typedef struct SDPParseState {
332 /* SDP only */
3fbd12d1 333 struct sockaddr_storage default_ip;
c8965800
RB
334 int default_ttl;
335 int skip_media; ///< set if an unknown m= line occurs
1f57d601
ET
336 int nb_default_include_source_addrs; /**< Number of source-specific multicast include source IP address (from SDP content) */
337 struct RTSPSource **default_include_source_addrs; /**< Source-specific multicast include source IP address (from SDP content) */
338 int nb_default_exclude_source_addrs; /**< Number of source-specific multicast exclude source IP address (from SDP content) */
339 struct RTSPSource **default_exclude_source_addrs; /**< Source-specific multicast exclude source IP address (from SDP content) */
c385313d
JK
340 int seen_rtpmap;
341 int seen_fmtp;
342 char delayed_fmtp[2048];
93ced3e8
FB
343} SDPParseState;
344
1f57d601
ET
345static void copy_default_source_addrs(struct RTSPSource **addrs, int count,
346 struct RTSPSource ***dest, int *dest_count)
347{
348 RTSPSource *rtsp_src, *rtsp_src2;
349 int i;
350 for (i = 0; i < count; i++) {
351 rtsp_src = addrs[i];
352 rtsp_src2 = av_malloc(sizeof(*rtsp_src2));
353 if (!rtsp_src2)
354 continue;
355 memcpy(rtsp_src2, rtsp_src, sizeof(*rtsp_src));
356 dynarray_add(dest, dest_count, rtsp_src2);
357 }
358}
359
c9c1e00f
LB
360static void parse_fmtp(AVFormatContext *s, RTSPState *rt,
361 int payload_type, const char *line)
362{
363 int i;
364
365 for (i = 0; i < rt->nb_rtsp_streams; i++) {
366 RTSPStream *rtsp_st = rt->rtsp_streams[i];
367 if (rtsp_st->sdp_payload_type == payload_type &&
368 rtsp_st->dynamic_handler &&
369 rtsp_st->dynamic_handler->parse_sdp_a_line) {
370 rtsp_st->dynamic_handler->parse_sdp_a_line(s, i,
74d318f1 371 rtsp_st->dynamic_protocol_context, line);
c9c1e00f
LB
372 }
373 }
374}
375
93ced3e8 376static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
1617ad97
FB
377 int letter, const char *buf)
378{
8b1ab7bf 379 RTSPState *rt = s->priv_data;
1617ad97
FB
380 char buf1[64], st_type[64];
381 const char *p;
72415b2a 382 enum AVMediaType codec_type;
c9c1e00f 383 int payload_type;
1617ad97
FB
384 AVStream *st;
385 RTSPStream *rtsp_st;
1f57d601 386 RTSPSource *rtsp_src;
3fbd12d1 387 struct sockaddr_storage sdp_ip;
93ced3e8
FB
388 int ttl;
389
1a3eb042 390 av_log(s, AV_LOG_TRACE, "sdp: %c='%s'\n", letter, buf);
1617ad97
FB
391
392 p = buf;
cb760a47
RB
393 if (s1->skip_media && letter != 'm')
394 return;
c8965800 395 switch (letter) {
93ced3e8
FB
396 case 'c':
397 get_word(buf1, sizeof(buf1), &p);
398 if (strcmp(buf1, "IN") != 0)
399 return;
400 get_word(buf1, sizeof(buf1), &p);
3fbd12d1 401 if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6"))
93ced3e8
FB
402 return;
403 get_word_sep(buf1, sizeof(buf1), "/", &p);
2c17fb61 404 if (get_sockaddr(s, buf1, &sdp_ip))
93ced3e8
FB
405 return;
406 ttl = 16;
407 if (*p == '/') {
408 p++;
409 get_word_sep(buf1, sizeof(buf1), "/", &p);
410 ttl = atoi(buf1);
411 }
412 if (s->nb_streams == 0) {
413 s1->default_ip = sdp_ip;
414 s1->default_ttl = ttl;
415 } else {
d9c0510e 416 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
93ced3e8
FB
417 rtsp_st->sdp_ip = sdp_ip;
418 rtsp_st->sdp_ttl = ttl;
419 }
420 break;
1617ad97 421 case 's':
d2d67e42 422 av_dict_set(&s->metadata, "title", p, 0);
1617ad97
FB
423 break;
424 case 'i':
425 if (s->nb_streams == 0) {
d2d67e42 426 av_dict_set(&s->metadata, "comment", p, 0);
1617ad97
FB
427 break;
428 }
429 break;
430 case 'm':
431 /* new stream */
c385313d
JK
432 s1->skip_media = 0;
433 s1->seen_fmtp = 0;
434 s1->seen_rtpmap = 0;
f011fcd6 435 codec_type = AVMEDIA_TYPE_UNKNOWN;
1617ad97
FB
436 get_word(st_type, sizeof(st_type), &p);
437 if (!strcmp(st_type, "audio")) {
72415b2a 438 codec_type = AVMEDIA_TYPE_AUDIO;
1617ad97 439 } else if (!strcmp(st_type, "video")) {
72415b2a 440 codec_type = AVMEDIA_TYPE_VIDEO;
26524e35 441 } else if (!strcmp(st_type, "application") || !strcmp(st_type, "text")) {
72415b2a 442 codec_type = AVMEDIA_TYPE_DATA;
f011fcd6
JB
443 }
444 if (codec_type == AVMEDIA_TYPE_UNKNOWN || !(rt->media_type_mask & (1 << codec_type))) {
cb760a47 445 s1->skip_media = 1;
1617ad97
FB
446 return;
447 }
1617ad97
FB
448 rtsp_st = av_mallocz(sizeof(RTSPStream));
449 if (!rtsp_st)
450 return;
8b1ab7bf
FB
451 rtsp_st->stream_index = -1;
452 dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
93ced3e8
FB
453
454 rtsp_st->sdp_ip = s1->default_ip;
455 rtsp_st->sdp_ttl = s1->default_ttl;
456
1f57d601
ET
457 copy_default_source_addrs(s1->default_include_source_addrs,
458 s1->nb_default_include_source_addrs,
459 &rtsp_st->include_source_addrs,
460 &rtsp_st->nb_include_source_addrs);
461 copy_default_source_addrs(s1->default_exclude_source_addrs,
462 s1->nb_default_exclude_source_addrs,
463 &rtsp_st->exclude_source_addrs,
464 &rtsp_st->nb_exclude_source_addrs);
465
93ced3e8
FB
466 get_word(buf1, sizeof(buf1), &p); /* port */
467 rtsp_st->sdp_port = atoi(buf1);
468
df8cf076
MS
469 get_word(buf1, sizeof(buf1), &p); /* protocol */
470 if (!strcmp(buf1, "udp"))
471 rt->transport = RTSP_TRANSPORT_RAW;
86d9181c
MS
472 else if (strstr(buf1, "/AVPF") || strstr(buf1, "/SAVPF"))
473 rtsp_st->feedback = 1;
115329f1 474
93ced3e8
FB
475 /* XXX: handle list of formats */
476 get_word(buf1, sizeof(buf1), &p); /* format list */
477 rtsp_st->sdp_payload_type = atoi(buf1);
93ced3e8 478
7ed19d7f 479 if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) {
8b1ab7bf 480 /* no corresponding stream */
2326558d 481 if (rt->transport == RTSP_TRANSPORT_RAW) {
604c9b11 482 if (CONFIG_RTPDEC && !rt->ts)
2326558d
MS
483 rt->ts = ff_mpegts_parse_open(s);
484 } else {
485 RTPDynamicProtocolHandler *handler;
486 handler = ff_rtp_handler_find_by_id(
487 rtsp_st->sdp_payload_type, AVMEDIA_TYPE_DATA);
488 init_rtp_handler(handler, rtsp_st, NULL);
078d43e2 489 finalize_rtp_handler_init(s, rtsp_st, NULL);
2326558d 490 }
45600148
MS
491 } else if (rt->server_type == RTSP_SERVER_WMS &&
492 codec_type == AVMEDIA_TYPE_DATA) {
493 /* RTX stream, a stream that carries all the other actual
494 * audio/video streams. Don't expose this to the callers. */
8b1ab7bf 495 } else {
84ad31ff 496 st = avformat_new_stream(s, NULL);
8b1ab7bf
FB
497 if (!st)
498 return;
84ad31ff 499 st->id = rt->nb_rtsp_streams - 1;
8b1ab7bf 500 rtsp_st->stream_index = st->index;
9200514a 501 st->codecpar->codec_type = codec_type;
d1ccf0e0 502 if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) {
6a7e31a9 503 RTPDynamicProtocolHandler *handler;
8b1ab7bf 504 /* if standard payload type, we can find the codec right now */
9200514a
AK
505 ff_rtp_get_codec_info(st->codecpar, rtsp_st->sdp_payload_type);
506 if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
507 st->codecpar->sample_rate > 0)
508 avpriv_set_pts_info(st, 32, 1, st->codecpar->sample_rate);
6a7e31a9
MS
509 /* Even static payload types may need a custom depacketizer */
510 handler = ff_rtp_handler_find_by_id(
9200514a 511 rtsp_st->sdp_payload_type, st->codecpar->codec_type);
b7a4c319 512 init_rtp_handler(handler, rtsp_st, st);
078d43e2 513 finalize_rtp_handler_init(s, rtsp_st, st);
8b1ab7bf 514 }
4438d1c6
GC
515 if (rt->default_lang[0])
516 av_dict_set(&st->metadata, "language", rt->default_lang, 0);
8b1ab7bf 517 }
1617ad97 518 /* put a default control url */
00eb13e0 519 av_strlcpy(rtsp_st->control_url, rt->control_uri,
c8965800 520 sizeof(rtsp_st->control_url));
1617ad97
FB
521 break;
522 case 'a':
00eb13e0
AS
523 if (av_strstart(p, "control:", &p)) {
524 if (s->nb_streams == 0) {
525 if (!strncmp(p, "rtsp://", 7))
526 av_strlcpy(rt->control_uri, p,
527 sizeof(rt->control_uri));
528 } else {
0b6a7ff4
MS
529 char proto[32];
530 /* get the control url */
d9c0510e 531 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
115329f1 532
0b6a7ff4
MS
533 /* XXX: may need to add full url resolution */
534 av_url_split(proto, sizeof(proto), NULL, 0, NULL, 0,
535 NULL, NULL, 0, p);
536 if (proto[0] == '\0') {
537 /* relative control URL */
538 if (rtsp_st->control_url[strlen(rtsp_st->control_url)-1]!='/')
539 av_strlcat(rtsp_st->control_url, "/",
540 sizeof(rtsp_st->control_url));
541 av_strlcat(rtsp_st->control_url, p,
542 sizeof(rtsp_st->control_url));
543 } else
544 av_strlcpy(rtsp_st->control_url, p,
545 sizeof(rtsp_st->control_url));
00eb13e0 546 }
83d14c85 547 } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) {
93ced3e8 548 /* NOTE: rtpmap is only supported AFTER the 'm=' tag */
115329f1 549 get_word(buf1, sizeof(buf1), &p);
93ced3e8 550 payload_type = atoi(buf1);
d9c0510e 551 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
45600148
MS
552 if (rtsp_st->stream_index >= 0) {
553 st = s->streams[rtsp_st->stream_index];
554 sdp_parse_rtpmap(s, st, rtsp_st, payload_type, p);
555 }
c385313d
JK
556 s1->seen_rtpmap = 1;
557 if (s1->seen_fmtp) {
558 parse_fmtp(s, rt, payload_type, s1->delayed_fmtp);
559 }
7fc8ac7f
JA
560 } else if (av_strstart(p, "fmtp:", &p) ||
561 av_strstart(p, "framesize:", &p)) {
d0deedcb
RM
562 // let dynamic protocol handlers have a stab at the line.
563 get_word(buf1, sizeof(buf1), &p);
564 payload_type = atoi(buf1);
c385313d
JK
565 if (s1->seen_rtpmap) {
566 parse_fmtp(s, rt, payload_type, buf);
567 } else {
568 s1->seen_fmtp = 1;
569 av_strlcpy(s1->delayed_fmtp, buf, sizeof(s1->delayed_fmtp));
570 }
bc2a3296
MS
571 } else if (av_strstart(p, "ssrc:", &p) && s->nb_streams > 0) {
572 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
573 get_word(buf1, sizeof(buf1), &p);
574 rtsp_st->ssrc = strtoll(buf1, NULL, 10);
c8965800 575 } else if (av_strstart(p, "range:", &p)) {
31693e00
RM
576 int64_t start, end;
577
578 // this is so that seeking on a streamed file can work.
579 rtsp_parse_range_npt(p, &start, &end);
c8965800
RB
580 s->start_time = start;
581 /* AV_NOPTS_VALUE means live broadcast (and can't seek) */
582 s->duration = (end == AV_NOPTS_VALUE) ?
583 AV_NOPTS_VALUE : end - start;
4438d1c6
GC
584 } else if (av_strstart(p, "lang:", &p)) {
585 if (s->nb_streams > 0) {
586 get_word(buf1, sizeof(buf1), &p);
587 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
588 if (rtsp_st->stream_index >= 0) {
589 st = s->streams[rtsp_st->stream_index];
590 av_dict_set(&st->metadata, "language", buf1, 0);
591 }
592 } else
593 get_word(rt->default_lang, sizeof(rt->default_lang), &p);
119b4668
RB
594 } else if (av_strstart(p, "IsRealDataType:integer;",&p)) {
595 if (atoi(p) == 1)
596 rt->transport = RTSP_TRANSPORT_RDT;
bb776f3b
MS
597 } else if (av_strstart(p, "SampleRate:integer;", &p) &&
598 s->nb_streams > 0) {
599 st = s->streams[s->nb_streams - 1];
9200514a 600 st->codecpar->sample_rate = atoi(p);
424da308
MS
601 } else if (av_strstart(p, "crypto:", &p) && s->nb_streams > 0) {
602 // RFC 4568
603 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
604 get_word(buf1, sizeof(buf1), &p); // ignore tag
605 get_word(rtsp_st->crypto_suite, sizeof(rtsp_st->crypto_suite), &p);
606 p += strspn(p, SPACE_CHARS);
607 if (av_strstart(p, "inline:", &p))
608 get_word(rtsp_st->crypto_params, sizeof(rtsp_st->crypto_params), &p);
1f57d601
ET
609 } else if (av_strstart(p, "source-filter:", &p)) {
610 int exclude = 0;
36fb0d02 611 get_word(buf1, sizeof(buf1), &p);
1f57d601 612 if (strcmp(buf1, "incl") && strcmp(buf1, "excl"))
36fb0d02 613 return;
1f57d601 614 exclude = !strcmp(buf1, "excl");
36fb0d02
ET
615
616 get_word(buf1, sizeof(buf1), &p);
617 if (strcmp(buf1, "IN") != 0)
618 return;
619 get_word(buf1, sizeof(buf1), &p);
1f57d601 620 if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6") && strcmp(buf1, "*"))
36fb0d02 621 return;
1f57d601 622 // not checking that the destination address actually matches or is wildcard
36fb0d02
ET
623 get_word(buf1, sizeof(buf1), &p);
624
1f57d601
ET
625 while (*p != '\0') {
626 rtsp_src = av_mallocz(sizeof(*rtsp_src));
627 if (!rtsp_src)
628 return;
629 get_word(rtsp_src->addr, sizeof(rtsp_src->addr), &p);
630 if (exclude) {
631 if (s->nb_streams == 0) {
632 dynarray_add(&s1->default_exclude_source_addrs, &s1->nb_default_exclude_source_addrs, rtsp_src);
633 } else {
634 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
635 dynarray_add(&rtsp_st->exclude_source_addrs, &rtsp_st->nb_exclude_source_addrs, rtsp_src);
636 }
637 } else {
638 if (s->nb_streams == 0) {
639 dynarray_add(&s1->default_include_source_addrs, &s1->nb_default_include_source_addrs, rtsp_src);
640 } else {
641 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
642 dynarray_add(&rtsp_st->include_source_addrs, &rtsp_st->nb_include_source_addrs, rtsp_src);
643 }
644 }
645 }
1a30d541
RB
646 } else {
647 if (rt->server_type == RTSP_SERVER_WMS)
648 ff_wms_parse_sdp_a_line(s, p);
649 if (s->nb_streams > 0) {
45600148
MS
650 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
651
c4a3d032 652 if (rt->server_type == RTSP_SERVER_REAL)
45600148 653 ff_real_parse_sdp_a_line(s, rtsp_st->stream_index, p);
c4a3d032 654
c4a3d032
RB
655 if (rtsp_st->dynamic_handler &&
656 rtsp_st->dynamic_handler->parse_sdp_a_line)
c8965800 657 rtsp_st->dynamic_handler->parse_sdp_a_line(s,
45600148 658 rtsp_st->stream_index,
c4a3d032 659 rtsp_st->dynamic_protocol_context, buf);
1a30d541 660 }
1617ad97
FB
661 }
662 break;
663 }
664}
665
0526c6f7 666int ff_sdp_parse(AVFormatContext *s, const char *content)
1617ad97
FB
667{
668 const char *p;
1f57d601 669 int letter, i;
9211bcdd
RB
670 /* Some SDP lines, particularly for Realmedia or ASF RTSP streams,
671 * contain long SDP lines containing complete ASF Headers (several
672 * kB) or arrays of MDPR (RM stream descriptor) headers plus
673 * "rulebooks" describing their properties. Therefore, the SDP line
373afbaf
RB
674 * buffer is large.
675 *
afcea58c
JA
676 * The Vorbis FMTP line can be up to 16KB - see xiph_parse_sdp_line
677 * in rtpdec_xiph.c. */
373afbaf 678 char buf[16384], *q;
a92be9b8 679 SDPParseState sdp_parse_state = { { 0 } }, *s1 = &sdp_parse_state;
115329f1 680
1617ad97 681 p = content;
c8965800 682 for (;;) {
30619e6e 683 p += strspn(p, SPACE_CHARS);
1617ad97
FB
684 letter = *p;
685 if (letter == '\0')
686 break;
687 p++;
688 if (*p != '=')
689 goto next_line;
690 p++;
691 /* get the content */
692 q = buf;
b6892136 693 while (*p != '\n' && *p != '\r' && *p != '\0') {
1617ad97
FB
694 if ((q - buf) < sizeof(buf) - 1)
695 *q++ = *p;
696 p++;
697 }
698 *q = '\0';
93ced3e8 699 sdp_parse_line(s, s1, letter, buf);
1617ad97
FB
700 next_line:
701 while (*p != '\n' && *p != '\0')
702 p++;
703 if (*p == '\n')
704 p++;
705 }
1f57d601
ET
706
707 for (i = 0; i < s1->nb_default_include_source_addrs; i++)
708 av_free(s1->default_include_source_addrs[i]);
709 av_freep(&s1->default_include_source_addrs);
710 for (i = 0; i < s1->nb_default_exclude_source_addrs; i++)
711 av_free(s1->default_exclude_source_addrs[i]);
712 av_freep(&s1->default_exclude_source_addrs);
713
1617ad97
FB
714 return 0;
715}
44b70ce5 716#endif /* CONFIG_RTPDEC */
1617ad97 717
50aef03b 718void ff_rtsp_undo_setup(AVFormatContext *s, int send_packets)
93e7490e
MS
719{
720 RTSPState *rt = s->priv_data;
721 int i;
722
723 for (i = 0; i < rt->nb_rtsp_streams; i++) {
724 RTSPStream *rtsp_st = rt->rtsp_streams[i];
725 if (!rtsp_st)
726 continue;
727 if (rtsp_st->transport_priv) {
728 if (s->oformat) {
729 AVFormatContext *rtpctx = rtsp_st->transport_priv;
730 av_write_trailer(rtpctx);
731 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
50aef03b
MS
732 if (CONFIG_RTSP_MUXER && rtpctx->pb && send_packets)
733 ff_rtsp_tcp_write_packet(s, rtsp_st);
8e32b1f0 734 ffio_free_dyn_buf(&rtpctx->pb);
93e7490e 735 } else {
22a3212e 736 avio_close(rtpctx->pb);
93e7490e 737 }
b22dbb29 738 avformat_free_context(rtpctx);
604c9b11 739 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RDT)
93e7490e 740 ff_rdt_parse_close(rtsp_st->transport_priv);
604c9b11 741 else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RTP)
bfc6db44 742 ff_rtp_parse_close(rtsp_st->transport_priv);
93e7490e
MS
743 }
744 rtsp_st->transport_priv = NULL;
745 if (rtsp_st->rtp_handle)
e52a9145 746 ffurl_close(rtsp_st->rtp_handle);
93e7490e
MS
747 rtsp_st->rtp_handle = NULL;
748 }
749}
750
1ced9da3 751/* close and free RTSP streams */
3307e6ea 752void ff_rtsp_close_streams(AVFormatContext *s)
1ced9da3 753{
52aa4338 754 RTSPState *rt = s->priv_data;
1f57d601 755 int i, j;
1ced9da3
LA
756 RTSPStream *rtsp_st;
757
50aef03b 758 ff_rtsp_undo_setup(s, 0);
c8965800 759 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1ced9da3
LA
760 rtsp_st = rt->rtsp_streams[i];
761 if (rtsp_st) {
e72605f8 762 if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context) {
d594dbec
MS
763 if (rtsp_st->dynamic_handler->close)
764 rtsp_st->dynamic_handler->close(
e72605f8 765 rtsp_st->dynamic_protocol_context);
bb4a310b 766 av_free(rtsp_st->dynamic_protocol_context);
e72605f8 767 }
1f57d601
ET
768 for (j = 0; j < rtsp_st->nb_include_source_addrs; j++)
769 av_free(rtsp_st->include_source_addrs[j]);
770 av_freep(&rtsp_st->include_source_addrs);
771 for (j = 0; j < rtsp_st->nb_exclude_source_addrs; j++)
772 av_free(rtsp_st->exclude_source_addrs[j]);
773 av_freep(&rtsp_st->exclude_source_addrs);
774
ea7f0807 775 av_free(rtsp_st);
1ced9da3
LA
776 }
777 }
778 av_free(rt->rtsp_streams);
779 if (rt->asf_ctx) {
cd3716b9 780 avformat_close_input(&rt->asf_ctx);
1ced9da3 781 }
604c9b11 782 if (CONFIG_RTPDEC && rt->ts)
1243c722 783 ff_mpegts_parse_close(rt->ts);
8c0ceafb 784 av_freep(&rt->protocols);
a8475bbd 785 av_free(rt->p);
96a7c975 786 av_free(rt->recvbuf);
1ced9da3
LA
787}
788
6e71c120 789int ff_rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
1ced9da3
LA
790{
791 RTSPState *rt = s->priv_data;
792 AVStream *st = NULL;
3f055f8f
MS
793 int reordering_queue_size = rt->reordering_queue_size;
794 if (reordering_queue_size < 0) {
795 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP || !s->max_delay)
796 reordering_queue_size = 0;
797 else
798 reordering_queue_size = RTP_REORDER_QUEUE_DEFAULT_SIZE;
799 }
1ced9da3
LA
800
801 /* open the RTP context */
802 if (rtsp_st->stream_index >= 0)
803 st = s->streams[rtsp_st->stream_index];
804 if (!st)
805 s->ctx_flags |= AVFMTCTX_NOHEADER;
806
604c9b11 807 if (CONFIG_RTSP_MUXER && s->oformat) {
46c0cbd5
VG
808 int ret = ff_rtp_chain_mux_open((AVFormatContext **)&rtsp_st->transport_priv,
809 s, st, rtsp_st->rtp_handle,
8034130e
LB
810 RTSP_TCP_MAX_PACKET_SIZE,
811 rtsp_st->stream_index);
c2bfd816 812 /* Ownership of rtp_handle is passed to the rtp mux context */
fd450a51 813 rtsp_st->rtp_handle = NULL;
68c81308
MS
814 if (ret < 0)
815 return ret;
f797b134 816 st->time_base = ((AVFormatContext*)rtsp_st->transport_priv)->streams[0]->time_base;
df8cf076
MS
817 } else if (rt->transport == RTSP_TRANSPORT_RAW) {
818 return 0; // Don't need to open any parser here
604c9b11 819 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RDT)
1ced9da3
LA
820 rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index,
821 rtsp_st->dynamic_protocol_context,
822 rtsp_st->dynamic_handler);
44b70ce5 823 else if (CONFIG_RTPDEC)
3f95f0dd 824 rtsp_st->transport_priv = ff_rtp_parse_open(s, st,
58ee0991 825 rtsp_st->sdp_payload_type,
3f055f8f 826 reordering_queue_size);
1ced9da3
LA
827
828 if (!rtsp_st->transport_priv) {
829 return AVERROR(ENOMEM);
df379502
MS
830 } else if (CONFIG_RTPDEC && rt->transport == RTSP_TRANSPORT_RTP &&
831 s->iformat) {
bc2a3296
MS
832 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
833 rtpctx->ssrc = rtsp_st->ssrc;
c8965800 834 if (rtsp_st->dynamic_handler) {
bfc6db44
MS
835 ff_rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv,
836 rtsp_st->dynamic_protocol_context,
837 rtsp_st->dynamic_handler);
1ced9da3 838 }
424da308
MS
839 if (rtsp_st->crypto_suite[0])
840 ff_rtp_parse_set_crypto(rtsp_st->transport_priv,
841 rtsp_st->crypto_suite,
842 rtsp_st->crypto_params);
1ced9da3
LA
843 }
844
845 return 0;
846}
847
6f5a3d0a 848#if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
1617ad97
FB
849static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
850{
ddce7dab
MR
851 const char *q;
852 char *p;
1617ad97
FB
853 int v;
854
ddce7dab
MR
855 q = *pp;
856 q += strspn(q, SPACE_CHARS);
857 v = strtol(q, &p, 10);
1617ad97
FB
858 if (*p == '-') {
859 p++;
860 *min_ptr = v;
ddce7dab 861 v = strtol(p, &p, 10);
1617ad97
FB
862 *max_ptr = v;
863 } else {
864 *min_ptr = v;
865 *max_ptr = v;
866 }
867 *pp = p;
868}
869
870/* XXX: only one transport specification is parsed */
2c17fb61
LB
871static void rtsp_parse_transport(AVFormatContext *s,
872 RTSPMessageHeader *reply, const char *p)
1617ad97
FB
873{
874 char transport_protocol[16];
875 char profile[16];
876 char lower_transport[16];
877 char parameter[16];
878 RTSPTransportField *th;
879 char buf[256];
115329f1 880
1617ad97 881 reply->nb_transports = 0;
115329f1 882
c8965800 883 for (;;) {
30619e6e 884 p += strspn(p, SPACE_CHARS);
1617ad97
FB
885 if (*p == '\0')
886 break;
887
888 th = &reply->transports[reply->nb_transports];
889
115329f1 890 get_word_sep(transport_protocol, sizeof(transport_protocol),
1617ad97 891 "/", &p);
bb3244de 892 if (!av_strcasecmp (transport_protocol, "rtp")) {
7ecc634e
LB
893 get_word_sep(profile, sizeof(profile), "/;,", &p);
894 lower_transport[0] = '\0';
895 /* rtp/avp/<protocol> */
896 if (*p == '/') {
7ecc634e
LB
897 get_word_sep(lower_transport, sizeof(lower_transport),
898 ";,", &p);
119b4668
RB
899 }
900 th->transport = RTSP_TRANSPORT_RTP;
bb3244de
RD
901 } else if (!av_strcasecmp (transport_protocol, "x-pn-tng") ||
902 !av_strcasecmp (transport_protocol, "x-real-rdt")) {
7ecc634e 903 /* x-pn-tng/<protocol> */
e1502118
LB
904 get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p);
905 profile[0] = '\0';
119b4668 906 th->transport = RTSP_TRANSPORT_RDT;
df8cf076
MS
907 } else if (!av_strcasecmp(transport_protocol, "raw")) {
908 get_word_sep(profile, sizeof(profile), "/;,", &p);
909 lower_transport[0] = '\0';
910 /* raw/raw/<protocol> */
911 if (*p == '/') {
912 get_word_sep(lower_transport, sizeof(lower_transport),
913 ";,", &p);
914 }
915 th->transport = RTSP_TRANSPORT_RAW;
1617ad97 916 }
bb3244de 917 if (!av_strcasecmp(lower_transport, "TCP"))
90abbdba 918 th->lower_transport = RTSP_LOWER_TRANSPORT_TCP;
1617ad97 919 else
90abbdba 920 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP;
115329f1 921
1617ad97
FB
922 if (*p == ';')
923 p++;
924 /* get each parameter */
925 while (*p != '\0' && *p != ',') {
926 get_word_sep(parameter, sizeof(parameter), "=;,", &p);
927 if (!strcmp(parameter, "port")) {
928 if (*p == '=') {
929 p++;
930 rtsp_parse_range(&th->port_min, &th->port_max, &p);
931 }
932 } else if (!strcmp(parameter, "client_port")) {
933 if (*p == '=') {
934 p++;
115329f1 935 rtsp_parse_range(&th->client_port_min,
1617ad97
FB
936 &th->client_port_max, &p);
937 }
938 } else if (!strcmp(parameter, "server_port")) {
939 if (*p == '=') {
940 p++;
115329f1 941 rtsp_parse_range(&th->server_port_min,
1617ad97
FB
942 &th->server_port_max, &p);
943 }
944 } else if (!strcmp(parameter, "interleaved")) {
945 if (*p == '=') {
946 p++;
115329f1 947 rtsp_parse_range(&th->interleaved_min,
1617ad97
FB
948 &th->interleaved_max, &p);
949 }
950 } else if (!strcmp(parameter, "multicast")) {
90abbdba
RB
951 if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP)
952 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST;
1617ad97
FB
953 } else if (!strcmp(parameter, "ttl")) {
954 if (*p == '=') {
f21d5c90 955 char *end;
1617ad97 956 p++;
f21d5c90
MS
957 th->ttl = strtol(p, &end, 10);
958 p = end;
1617ad97
FB
959 }
960 } else if (!strcmp(parameter, "destination")) {
1617ad97
FB
961 if (*p == '=') {
962 p++;
963 get_word_sep(buf, sizeof(buf), ";,", &p);
2c17fb61 964 get_sockaddr(s, buf, &th->destination);
1617ad97 965 }
619298a8
JW
966 } else if (!strcmp(parameter, "source")) {
967 if (*p == '=') {
968 p++;
969 get_word_sep(buf, sizeof(buf), ";,", &p);
970 av_strlcpy(th->source, buf, sizeof(th->source));
971 }
45b06858
JO
972 } else if (!strcmp(parameter, "mode")) {
973 if (*p == '=') {
974 p++;
975 get_word_sep(buf, sizeof(buf), ";, ", &p);
976 if (!strcmp(buf, "record") ||
977 !strcmp(buf, "receive"))
978 th->mode_record = 1;
979 }
1617ad97 980 }
619298a8 981
1617ad97
FB
982 while (*p != ';' && *p != '\0' && *p != ',')
983 p++;
984 if (*p == ';')
985 p++;
986 }
987 if (*p == ',')
988 p++;
989
990 reply->nb_transports++;
b90adb0a
MS
991 if (reply->nb_transports >= RTSP_MAX_TRANSPORTS)
992 break;
1617ad97
FB
993 }
994}
995
29db7c3a
MS
996static void handle_rtp_info(RTSPState *rt, const char *url,
997 uint32_t seq, uint32_t rtptime)
998{
999 int i;
1000 if (!rtptime || !url[0])
1001 return;
1002 if (rt->transport != RTSP_TRANSPORT_RTP)
1003 return;
1004 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1005 RTSPStream *rtsp_st = rt->rtsp_streams[i];
1006 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
1007 if (!rtpctx)
1008 continue;
1009 if (!strcmp(rtsp_st->control_url, url)) {
1010 rtpctx->base_timestamp = rtptime;
1011 break;
1012 }
1013 }
1014}
1015
1016static void rtsp_parse_rtp_info(RTSPState *rt, const char *p)
1017{
1018 int read = 0;
1019 char key[20], value[1024], url[1024] = "";
1020 uint32_t seq = 0, rtptime = 0;
1021
1022 for (;;) {
1023 p += strspn(p, SPACE_CHARS);
1024 if (!*p)
1025 break;
1026 get_word_sep(key, sizeof(key), "=", &p);
1027 if (*p != '=')
1028 break;
1029 p++;
1030 get_word_sep(value, sizeof(value), ";, ", &p);
1031 read++;
1032 if (!strcmp(key, "url"))
1033 av_strlcpy(url, value, sizeof(url));
1034 else if (!strcmp(key, "seq"))
4515f9b5 1035 seq = strtoul(value, NULL, 10);
29db7c3a 1036 else if (!strcmp(key, "rtptime"))
4515f9b5 1037 rtptime = strtoul(value, NULL, 10);
29db7c3a
MS
1038 if (*p == ',') {
1039 handle_rtp_info(rt, url, seq, rtptime);
1040 url[0] = '\0';
1041 seq = rtptime = 0;
1042 read = 0;
1043 }
1044 if (*p)
1045 p++;
1046 }
1047 if (read > 0)
1048 handle_rtp_info(rt, url, seq, rtptime);
1049}
1050
2c17fb61
LB
1051void ff_rtsp_parse_line(AVFormatContext *s,
1052 RTSPMessageHeader *reply, const char *buf,
77223c53 1053 RTSPState *rt, const char *method)
1617ad97
FB
1054{
1055 const char *p;
1056
1057 /* NOTE: we do case independent match for broken servers */
1058 p = buf;
f7d78f36 1059 if (av_stristart(p, "Session:", &p)) {
30e79845 1060 int t;
1617ad97 1061 get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
30e79845
RB
1062 if (av_stristart(p, ";timeout=", &p) &&
1063 (t = strtol(p, NULL, 10)) > 0) {
1064 reply->timeout = t;
1065 }
f7d78f36 1066 } else if (av_stristart(p, "Content-Length:", &p)) {
1617ad97 1067 reply->content_length = strtol(p, NULL, 10);
f7d78f36 1068 } else if (av_stristart(p, "Transport:", &p)) {
2c17fb61 1069 rtsp_parse_transport(s, reply, p);
f7d78f36 1070 } else if (av_stristart(p, "CSeq:", &p)) {
1617ad97 1071 reply->seq = strtol(p, NULL, 10);
f7d78f36 1072 } else if (av_stristart(p, "Range:", &p)) {
31693e00 1073 rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
30aa6aed 1074 } else if (av_stristart(p, "RealChallenge1:", &p)) {
30619e6e 1075 p += strspn(p, SPACE_CHARS);
30aa6aed 1076 av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge));
7a86bafa 1077 } else if (av_stristart(p, "Server:", &p)) {
30619e6e 1078 p += strspn(p, SPACE_CHARS);
7a86bafa 1079 av_strlcpy(reply->server, p, sizeof(reply->server));
fccb1770
RB
1080 } else if (av_stristart(p, "Notice:", &p) ||
1081 av_stristart(p, "X-Notice:", &p)) {
1082 reply->notice = strtol(p, NULL, 10);
d243ba30 1083 } else if (av_stristart(p, "Location:", &p)) {
30619e6e 1084 p += strspn(p, SPACE_CHARS);
d243ba30 1085 av_strlcpy(reply->location, p , sizeof(reply->location));
acc9ed14 1086 } else if (av_stristart(p, "WWW-Authenticate:", &p) && rt) {
30619e6e 1087 p += strspn(p, SPACE_CHARS);
acc9ed14
MS
1088 ff_http_auth_handle_header(&rt->auth_state, "WWW-Authenticate", p);
1089 } else if (av_stristart(p, "Authentication-Info:", &p) && rt) {
30619e6e 1090 p += strspn(p, SPACE_CHARS);
acc9ed14 1091 ff_http_auth_handle_header(&rt->auth_state, "Authentication-Info", p);
d2995eb9 1092 } else if (av_stristart(p, "Content-Base:", &p) && rt) {
dd22cfb1 1093 p += strspn(p, SPACE_CHARS);
d2995eb9
MS
1094 if (method && !strcmp(method, "DESCRIBE"))
1095 av_strlcpy(rt->control_uri, p , sizeof(rt->control_uri));
29db7c3a
MS
1096 } else if (av_stristart(p, "RTP-Info:", &p) && rt) {
1097 p += strspn(p, SPACE_CHARS);
1098 if (method && !strcmp(method, "PLAY"))
1099 rtsp_parse_rtp_info(rt, p);
0b4949b5
MS
1100 } else if (av_stristart(p, "Public:", &p) && rt) {
1101 if (strstr(p, "GET_PARAMETER") &&
1102 method && !strcmp(method, "OPTIONS"))
1103 rt->get_parameter_supported = 1;
30eae325
MS
1104 } else if (av_stristart(p, "x-Accept-Dynamic-Rate:", &p) && rt) {
1105 p += strspn(p, SPACE_CHARS);
1106 rt->accept_dynamic_rate = atoi(p);
fcd0298c
JO
1107 } else if (av_stristart(p, "Content-Type:", &p)) {
1108 p += strspn(p, SPACE_CHARS);
1109 av_strlcpy(reply->content_type, p, sizeof(reply->content_type));
1617ad97
FB
1110 }
1111}
1112
b7b8fc34 1113/* skip a RTP/TCP interleaved packet */
ec55edba 1114void ff_rtsp_skip_packet(AVFormatContext *s)
b7b8fc34
FB
1115{
1116 RTSPState *rt = s->priv_data;
1117 int ret, len, len1;
1118 uint8_t buf[1024];
1119
dce37564 1120 ret = ffurl_read_complete(rt->rtsp_hd, buf, 3);
b7b8fc34
FB
1121 if (ret != 3)
1122 return;
80fb8234 1123 len = AV_RB16(buf + 1);
67c9cd69 1124
1a3eb042 1125 av_log(s, AV_LOG_TRACE, "skipping RTP packet len=%d\n", len);
67c9cd69 1126
b7b8fc34
FB
1127 /* skip payload */
1128 while (len > 0) {
1129 len1 = len;
1130 if (len1 > sizeof(buf))
1131 len1 = sizeof(buf);
dce37564 1132 ret = ffurl_read_complete(rt->rtsp_hd, buf, len1);
b7b8fc34
FB
1133 if (ret != len1)
1134 return;
1135 len -= len1;
1136 }
1137}
1617ad97 1138
3307e6ea 1139int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply,
93993933 1140 unsigned char **content_ptr,
3df54c6b 1141 int return_on_interleaved_data, const char *method)
1617ad97
FB
1142{
1143 RTSPState *rt = s->priv_data;
1144 char buf[4096], buf1[1024], *q;
1145 unsigned char ch;
1146 const char *p;
1a6b9a98 1147 int ret, content_length, line_count = 0, request = 0;
1617ad97
FB
1148 unsigned char *content = NULL;
1149
1a6b9a98
TW
1150start:
1151 line_count = 0;
1152 request = 0;
1153 content = NULL;
d541a7d2 1154 memset(reply, 0, sizeof(*reply));
1617ad97 1155
1617ad97 1156 /* parse reply (XXX: use buffers) */
1617ad97 1157 rt->last_reply[0] = '\0';
c8965800 1158 for (;;) {
1617ad97 1159 q = buf;
c8965800 1160 for (;;) {
dce37564 1161 ret = ffurl_read_complete(rt->rtsp_hd, &ch, 1);
1a3eb042 1162 av_log(s, AV_LOG_TRACE, "ret=%d c=%02x [%c]\n", ret, ch, ch);
7e726132 1163 if (ret != 1)
2401660d 1164 return AVERROR_EOF;
1617ad97
FB
1165 if (ch == '\n')
1166 break;
e02dcdf6 1167 if (ch == '$' && q == buf) {
7e726132
RB
1168 if (return_on_interleaved_data) {
1169 return 1;
1170 } else
ec55edba 1171 ff_rtsp_skip_packet(s);
b7b8fc34 1172 } else if (ch != '\r') {
1617ad97
FB
1173 if ((q - buf) < sizeof(buf) - 1)
1174 *q++ = ch;
1175 }
1176 }
1177 *q = '\0';
67c9cd69 1178
1a3eb042 1179 av_log(s, AV_LOG_TRACE, "line='%s'\n", buf);
67c9cd69 1180
1617ad97
FB
1181 /* test if last line */
1182 if (buf[0] == '\0')
1183 break;
1184 p = buf;
1185 if (line_count == 0) {
1186 /* get reply code */
1187 get_word(buf1, sizeof(buf1), &p);
1a6b9a98
TW
1188 if (!strncmp(buf1, "RTSP/", 5)) {
1189 get_word(buf1, sizeof(buf1), &p);
1190 reply->status_code = atoi(buf1);
1191 av_strlcpy(reply->reason, p, sizeof(reply->reason));
1192 } else {
1193 av_strlcpy(reply->reason, buf1, sizeof(reply->reason)); // method
1194 get_word(buf1, sizeof(buf1), &p); // object
1195 request = 1;
1196 }
1617ad97 1197 } else {
2c17fb61 1198 ff_rtsp_parse_line(s, reply, p, rt, method);
75e61b0e
MR
1199 av_strlcat(rt->last_reply, p, sizeof(rt->last_reply));
1200 av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply));
1617ad97
FB
1201 }
1202 line_count++;
1203 }
115329f1 1204
1a6b9a98 1205 if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0' && !request)
75e61b0e 1206 av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id));
115329f1 1207
1617ad97
FB
1208 content_length = reply->content_length;
1209 if (content_length > 0) {
1210 /* leave some room for a trailing '\0' (useful for simple parsing) */
1211 content = av_malloc(content_length + 1);
460b509a
ML
1212 if (!content)
1213 return AVERROR(ENOMEM);
dce37564 1214 ffurl_read_complete(rt->rtsp_hd, content, content_length);
1617ad97
FB
1215 content[content_length] = '\0';
1216 }
1217 if (content_ptr)
1218 *content_ptr = content;
e2e2e7dd
AB
1219 else
1220 av_free(content);
7e726132 1221
1a6b9a98
TW
1222 if (request) {
1223 char buf[1024];
1224 char base64buf[AV_BASE64_SIZE(sizeof(buf))];
1225 const char* ptr = buf;
1226
1227 if (!strcmp(reply->reason, "OPTIONS")) {
1228 snprintf(buf, sizeof(buf), "RTSP/1.0 200 OK\r\n");
1229 if (reply->seq)
1230 av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", reply->seq);
1231 if (reply->session_id[0])
1232 av_strlcatf(buf, sizeof(buf), "Session: %s\r\n",
1233 reply->session_id);
1234 } else {
1235 snprintf(buf, sizeof(buf), "RTSP/1.0 501 Not Implemented\r\n");
1236 }
1237 av_strlcat(buf, "\r\n", sizeof(buf));
1238
1239 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1240 av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
1241 ptr = base64buf;
1242 }
1243 ffurl_write(rt->rtsp_hd_out, ptr, strlen(ptr));
1244
6df9d9b5 1245 rt->last_cmd_time = av_gettime_relative();
1a6b9a98
TW
1246 /* Even if the request from the server had data, it is not the data
1247 * that the caller wants or expects. The memory could also be leaked
1248 * if the actual following reply has content data. */
1249 if (content_ptr)
1250 av_freep(content_ptr);
1251 /* If method is set, this is called from ff_rtsp_send_cmd,
1252 * where a reply to exactly this request is awaited. For
705eeb5e 1253 * callers from within packet receiving, we just want to
1a6b9a98
TW
1254 * return to the caller and go back to receiving packets. */
1255 if (method)
1256 goto start;
1257 return 0;
1258 }
1259
7ed8211b
LB
1260 if (rt->seq != reply->seq) {
1261 av_log(s, AV_LOG_WARNING, "CSeq %d expected, %d received.\n",
1262 rt->seq, reply->seq);
1263 }
1264
fccb1770
RB
1265 /* EOS */
1266 if (reply->notice == 2101 /* End-of-Stream Reached */ ||
1267 reply->notice == 2104 /* Start-of-Stream Reached */ ||
c8965800 1268 reply->notice == 2306 /* Continuous Feed Terminated */) {
fccb1770 1269 rt->state = RTSP_STATE_IDLE;
c8965800 1270 } else if (reply->notice >= 4400 && reply->notice < 5500) {
fccb1770 1271 return AVERROR(EIO); /* data or server error */
c8965800 1272 } else if (reply->notice == 2401 /* Ticket Expired */ ||
fccb1770
RB
1273 (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ )
1274 return AVERROR(EPERM);
1275
7e726132 1276 return 0;
1617ad97
FB
1277}
1278
57c4d01e
DEP
1279/**
1280 * Send a command to the RTSP server without waiting for the reply.
1281 *
1282 * @param s RTSP (de)muxer context
1283 * @param method the method for the request
1284 * @param url the target url for the request
1285 * @param headers extra header lines to include in the request
1286 * @param send_content if non-null, the data to send as request body content
1287 * @param send_content_length the length of the send_content data, or 0 if
1288 * send_content is null
1289 *
1290 * @return zero if success, nonzero otherwise
1291 */
e926b5ce
DB
1292static int rtsp_send_cmd_with_content_async(AVFormatContext *s,
1293 const char *method, const char *url,
1294 const char *headers,
1295 const unsigned char *send_content,
1296 int send_content_length)
29b9f58b
RB
1297{
1298 RTSPState *rt = s->priv_data;
f5d33f52
JA
1299 char buf[4096], *out_buf;
1300 char base64buf[AV_BASE64_SIZE(sizeof(buf))];
29b9f58b 1301
f5d33f52
JA
1302 /* Add in RTSP headers */
1303 out_buf = buf;
29b9f58b 1304 rt->seq++;
b17d11c6
MS
1305 snprintf(buf, sizeof(buf), "%s %s RTSP/1.0\r\n", method, url);
1306 if (headers)
1307 av_strlcat(buf, headers, sizeof(buf));
7b4a3645 1308 av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", rt->seq);
1dd1b233 1309 av_strlcatf(buf, sizeof(buf), "User-Agent: %s\r\n", LIBAVFORMAT_IDENT);
b17d11c6
MS
1310 if (rt->session_id[0] != '\0' && (!headers ||
1311 !strstr(headers, "\nIf-Match:"))) {
7b4a3645 1312 av_strlcatf(buf, sizeof(buf), "Session: %s\r\n", rt->session_id);
29b9f58b 1313 }
aa8bf2fb
MS
1314 if (rt->auth[0]) {
1315 char *str = ff_http_auth_create_response(&rt->auth_state,
1316 rt->auth, url, method);
1317 if (str)
1318 av_strlcat(buf, str, sizeof(buf));
1319 av_free(str);
1320 }
dfd017bf
MS
1321 if (send_content_length > 0 && send_content)
1322 av_strlcatf(buf, sizeof(buf), "Content-Length: %d\r\n", send_content_length);
29b9f58b 1323 av_strlcat(buf, "\r\n", sizeof(buf));
67c9cd69 1324
f5d33f52
JA
1325 /* base64 encode rtsp if tunneling */
1326 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1327 av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
1328 out_buf = base64buf;
1329 }
1330
1a3eb042 1331 av_log(s, AV_LOG_TRACE, "Sending:\n%s--\n", buf);
67c9cd69 1332
925e908b 1333 ffurl_write(rt->rtsp_hd_out, out_buf, strlen(out_buf));
f5d33f52
JA
1334 if (send_content_length > 0 && send_content) {
1335 if (rt->control_transport == RTSP_MODE_TUNNEL) {
67deba8a 1336 avpriv_report_missing_feature(s, "Tunneling of RTSP requests with content data");
f5d33f52
JA
1337 return AVERROR_PATCHWELCOME;
1338 }
925e908b 1339 ffurl_write(rt->rtsp_hd_out, send_content, send_content_length);
f5d33f52 1340 }
6df9d9b5 1341 rt->last_cmd_time = av_gettime_relative();
d0382374
JA
1342
1343 return 0;
30e79845
RB
1344}
1345
d0382374 1346int ff_rtsp_send_cmd_async(AVFormatContext *s, const char *method,
fc490fcf 1347 const char *url, const char *headers)
dfd017bf 1348{
e926b5ce 1349 return rtsp_send_cmd_with_content_async(s, method, url, headers, NULL, 0);
dfd017bf
MS
1350}
1351
d0382374 1352int ff_rtsp_send_cmd(AVFormatContext *s, const char *method, const char *url,
fc490fcf
MS
1353 const char *headers, RTSPMessageHeader *reply,
1354 unsigned char **content_ptr)
30e79845 1355{
d0382374 1356 return ff_rtsp_send_cmd_with_content(s, method, url, headers, reply,
fc490fcf 1357 content_ptr, NULL, 0);
29b9f58b
RB
1358}
1359
d0382374 1360int ff_rtsp_send_cmd_with_content(AVFormatContext *s,
fc490fcf
MS
1361 const char *method, const char *url,
1362 const char *header,
1363 RTSPMessageHeader *reply,
1364 unsigned char **content_ptr,
1365 const unsigned char *send_content,
1366 int send_content_length)
dfd017bf 1367{
30af0779
MS
1368 RTSPState *rt = s->priv_data;
1369 HTTPAuthType cur_auth_type;
2f96cc1f 1370 int ret, attempts = 0;
30af0779
MS
1371
1372retry:
1373 cur_auth_type = rt->auth_state.auth_type;
e926b5ce
DB
1374 if ((ret = rtsp_send_cmd_with_content_async(s, method, url, header,
1375 send_content,
1376 send_content_length)))
d0382374 1377 return ret;
dfd017bf 1378
3df54c6b 1379 if ((ret = ff_rtsp_read_reply(s, reply, content_ptr, 0, method) ) < 0)
d0382374 1380 return ret;
2f96cc1f 1381 attempts++;
30af0779 1382
2f96cc1f
MS
1383 if (reply->status_code == 401 &&
1384 (cur_auth_type == HTTP_AUTH_NONE || rt->auth_state.stale) &&
1385 rt->auth_state.auth_type != HTTP_AUTH_NONE && attempts < 2)
30af0779 1386 goto retry;
d0382374 1387
bf55cf19 1388 if (reply->status_code > 400){
d93fdcbf 1389 av_log(s, AV_LOG_ERROR, "method %s failed: %d%s\n",
bf55cf19 1390 method,
d93fdcbf
LB
1391 reply->status_code,
1392 reply->reason);
bf55cf19
LB
1393 av_log(s, AV_LOG_DEBUG, "%s\n", rt->last_reply);
1394 }
1395
d0382374 1396 return 0;
dfd017bf
MS
1397}
1398
fef5649a 1399int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
c8965800 1400 int lower_transport, const char *real_challenge)
1617ad97
FB
1401{
1402 RTSPState *rt = s->priv_data;
58f09785 1403 int rtx = 0, j, i, err, interleave = 0, port_off;
1617ad97 1404 RTSPStream *rtsp_st;
a9e534d5 1405 RTSPMessageHeader reply1, *reply = &reply1;
53620bba 1406 char cmd[2048];
e9dea59f
RB
1407 const char *trans_pref;
1408
119b4668 1409 if (rt->transport == RTSP_TRANSPORT_RDT)
e9dea59f 1410 trans_pref = "x-pn-tng";
df8cf076
MS
1411 else if (rt->transport == RTSP_TRANSPORT_RAW)
1412 trans_pref = "RAW/RAW";
e9dea59f
RB
1413 else
1414 trans_pref = "RTP/AVP";
115329f1 1415
30e79845
RB
1416 /* default timeout: 1 minute */
1417 rt->timeout = 60;
1418
1617ad97
FB
1419 /* for each stream, make the setup request */
1420 /* XXX: we assume the same server is used for the control of each
c8965800 1421 * RTSP stream */
d1ccf0e0 1422
58f09785
DV
1423 /* Choose a random starting offset within the first half of the
1424 * port range, to allow for a number of ports to try even if the offset
1425 * happens to be at the end of the random range. */
1426 port_off = av_get_random_seed() % ((rt->rtp_port_max - rt->rtp_port_min)/2);
1427 /* even random offset */
1428 port_off -= port_off & 0x01;
1429
1430 for (j = rt->rtp_port_min + port_off, i = 0; i < rt->nb_rtsp_streams; ++i) {
1617ad97
FB
1431 char transport[2048];
1432
f75e3da5 1433 /*
f830c9a4
RB
1434 * WMS serves all UDP data over a single connection, the RTX, which
1435 * isn't necessarily the first in the SDP but has to be the first
1436 * to be set up, else the second/third SETUP will fail with a 461.
1437 */
1438 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
1439 rt->server_type == RTSP_SERVER_WMS) {
1440 if (i == 0) {
1441 /* rtx first */
1442 for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {
1443 int len = strlen(rt->rtsp_streams[rtx]->control_url);
1444 if (len >= 4 &&
c8965800
RB
1445 !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4,
1446 "/rtx"))
f830c9a4
RB
1447 break;
1448 }
1449 if (rtx == rt->nb_rtsp_streams)
1450 return -1; /* no RTX found */
1451 rtsp_st = rt->rtsp_streams[rtx];
1452 } else
1453 rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1];
1454 } else
2fea9650 1455 rtsp_st = rt->rtsp_streams[i];
1617ad97 1456
1617ad97 1457 /* RTP/UDP */
90abbdba 1458 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) {
85fb7b34 1459 char buf[256];
85fb7b34 1460
f830c9a4
RB
1461 if (rt->server_type == RTSP_SERVER_WMS && i > 1) {
1462 port = reply->transports[0].client_port_min;
1463 goto have_port;
1464 }
1465
85fb7b34 1466 /* first try in specified port range */
dbb06b8c 1467 while (j <= rt->rtp_port_max) {
e3ec6fe7
LB
1468 AVDictionary *opts = map_to_opts(rt);
1469
bc495bad
DV
1470 ff_url_join(buf, sizeof(buf), "rtp", NULL, host, -1,
1471 "?localport=%d", j);
1472 /* we will use two ports per rtp stream (rtp and rtcp) */
1473 j += 2;
e3ec6fe7 1474 err = ffurl_open(&rtsp_st->rtp_handle, buf, AVIO_FLAG_READ_WRITE,
fab8156b 1475 &s->interrupt_callback, &opts, rt->protocols, NULL);
e3ec6fe7
LB
1476
1477 av_dict_free(&opts);
1478
1479 if (!err)
bc495bad 1480 goto rtp_opened;
1617ad97 1481 }
85fb7b34 1482
a3b058b7
MS
1483 av_log(s, AV_LOG_ERROR, "Unable to open an input RTP port\n");
1484 err = AVERROR(EIO);
1485 goto fail;
85fb7b34
FB
1486
1487 rtp_opened:
bfc6db44 1488 port = ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle);
f830c9a4 1489 have_port:
0ad306bc 1490 snprintf(transport, sizeof(transport) - 1,
eee2cbff
RB
1491 "%s/UDP;", trans_pref);
1492 if (rt->server_type != RTSP_SERVER_REAL)
1493 av_strlcat(transport, "unicast;", sizeof(transport));
1494 av_strlcatf(transport, sizeof(transport),
1495 "client_port=%d", port);
f830c9a4
RB
1496 if (rt->transport == RTSP_TRANSPORT_RTP &&
1497 !(rt->server_type == RTSP_SERVER_WMS && i > 0))
e9dea59f 1498 av_strlcatf(transport, sizeof(transport), "-%d", port + 1);
1617ad97
FB
1499 }
1500
1501 /* RTP/TCP */
90abbdba 1502 else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
f75e3da5 1503 /* For WMS streams, the application streams are only used for
090438cc
RB
1504 * UDP. When trying to set it up for TCP streams, the server
1505 * will return an error. Therefore, we skip those streams. */
1506 if (rt->server_type == RTSP_SERVER_WMS &&
45600148 1507 (rtsp_st->stream_index < 0 ||
9200514a 1508 s->streams[rtsp_st->stream_index]->codecpar->codec_type ==
45600148 1509 AVMEDIA_TYPE_DATA))
090438cc 1510 continue;
0ad306bc 1511 snprintf(transport, sizeof(transport) - 1,
d1c6e47c 1512 "%s/TCP;", trans_pref);
895678f8 1513 if (rt->transport != RTSP_TRANSPORT_RDT)
d1c6e47c
RB
1514 av_strlcat(transport, "unicast;", sizeof(transport));
1515 av_strlcatf(transport, sizeof(transport),
1516 "interleaved=%d-%d",
1517 interleave, interleave + 1);
1518 interleave += 2;
1617ad97
FB
1519 }
1520
90abbdba 1521 else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) {
0ad306bc 1522 snprintf(transport, sizeof(transport) - 1,
e9dea59f 1523 "%s/UDP;multicast", trans_pref);
1617ad97 1524 }
69adcc4f 1525 if (s->oformat) {
bbc80386 1526 av_strlcat(transport, ";mode=record", sizeof(transport));
69adcc4f 1527 } else if (rt->server_type == RTSP_SERVER_REAL ||
2efc97c2 1528 rt->server_type == RTSP_SERVER_WMS)
e9dea59f 1529 av_strlcat(transport, ";mode=play", sizeof(transport));
115329f1 1530 snprintf(cmd, sizeof(cmd),
b6892136 1531 "Transport: %s\r\n",
b17d11c6 1532 transport);
76b0d03d
MS
1533 if (rt->accept_dynamic_rate)
1534 av_strlcat(cmd, "x-Dynamic-Rate: 0\r\n", sizeof(cmd));
604c9b11 1535 if (CONFIG_RTPDEC && i == 0 && rt->server_type == RTSP_SERVER_REAL) {
e9dea59f
RB
1536 char real_res[41], real_csum[9];
1537 ff_rdt_calc_response_and_checksum(real_res, real_csum,
1538 real_challenge);
1539 av_strlcatf(cmd, sizeof(cmd),
1540 "If-Match: %s\r\n"
1541 "RealChallenge2: %s, sd=%s\r\n",
1542 rt->session_id, real_res, real_csum);
1543 }
b17d11c6 1544 ff_rtsp_send_cmd(s, "SETUP", rtsp_st->control_url, cmd, reply, NULL);
8a8754d8
RB
1545 if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) {
1546 err = 1;
1547 goto fail;
7e6ca34f
RB
1548 } else if (reply->status_code != RTSP_STATUS_OK ||
1549 reply->nb_transports != 1) {
1617ad97
FB
1550 err = AVERROR_INVALIDDATA;
1551 goto fail;
1552 }
1553
1554 /* XXX: same protocol for all streams is required */
1555 if (i > 0) {
119b4668
RB
1556 if (reply->transports[0].lower_transport != rt->lower_transport ||
1557 reply->transports[0].transport != rt->transport) {
1617ad97
FB
1558 err = AVERROR_INVALIDDATA;
1559 goto fail;
1560 }
1561 } else {
90abbdba 1562 rt->lower_transport = reply->transports[0].lower_transport;
119b4668 1563 rt->transport = reply->transports[0].transport;
1617ad97
FB
1564 }
1565
8c579c1c
MS
1566 /* Fail if the server responded with another lower transport mode
1567 * than what we requested. */
1568 if (reply->transports[0].lower_transport != lower_transport) {
1569 av_log(s, AV_LOG_ERROR, "Nonmatching transport in server reply\n");
1570 err = AVERROR_INVALIDDATA;
1571 goto fail;
1617ad97
FB
1572 }
1573
90abbdba
RB
1574 switch(reply->transports[0].lower_transport) {
1575 case RTSP_LOWER_TRANSPORT_TCP:
1617ad97
FB
1576 rtsp_st->interleaved_min = reply->transports[0].interleaved_min;
1577 rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
1578 break;
115329f1 1579
c8965800 1580 case RTSP_LOWER_TRANSPORT_UDP: {
a92c30d7 1581 char url[1024], options[30] = "";
fd8f91e3 1582 const char *peer = host;
c8965800 1583
9867aea5 1584 if (rt->rtsp_flags & RTSP_FLAG_FILTER_SRC)
a92c30d7 1585 av_strlcpy(options, "?connect=1", sizeof(options));
619298a8 1586 /* Use source address if specified */
fd8f91e3
MS
1587 if (reply->transports[0].source[0])
1588 peer = reply->transports[0].source;
1589 ff_url_join(url, sizeof(url), "rtp", NULL, peer,
1590 reply->transports[0].server_port_min, "%s", options);
c8965800 1591 if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
bfc6db44 1592 ff_rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
c8965800
RB
1593 err = AVERROR_INVALIDDATA;
1594 goto fail;
1617ad97
FB
1595 }
1596 break;
c8965800
RB
1597 }
1598 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: {
6294d708 1599 char url[1024], namebuf[50], optbuf[20] = "";
7934b15d 1600 struct sockaddr_storage addr;
c8965800
RB
1601 int port, ttl;
1602
7934b15d
MS
1603 if (reply->transports[0].destination.ss_family) {
1604 addr = reply->transports[0].destination;
c8965800
RB
1605 port = reply->transports[0].port_min;
1606 ttl = reply->transports[0].ttl;
1607 } else {
7934b15d 1608 addr = rtsp_st->sdp_ip;
c8965800
RB
1609 port = rtsp_st->sdp_port;
1610 ttl = rtsp_st->sdp_ttl;
1611 }
6294d708
MS
1612 if (ttl > 0)
1613 snprintf(optbuf, sizeof(optbuf), "?ttl=%d", ttl);
7934b15d
MS
1614 getnameinfo((struct sockaddr*) &addr, sizeof(addr),
1615 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
1616 ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
6294d708 1617 port, "%s", optbuf);
6f1b7b39 1618 if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
fab8156b 1619 &s->interrupt_callback, NULL, rt->protocols, NULL) < 0) {
c8965800
RB
1620 err = AVERROR_INVALIDDATA;
1621 goto fail;
1617ad97
FB
1622 }
1623 break;
1624 }
c8965800 1625 }
d1ccf0e0 1626
6e71c120 1627 if ((err = ff_rtsp_open_transport_ctx(s, rtsp_st)))
8b1ab7bf 1628 goto fail;
1617ad97
FB
1629 }
1630
62c3c8ca 1631 if (rt->nb_rtsp_streams && reply->timeout > 0)
30e79845
RB
1632 rt->timeout = reply->timeout;
1633
2e889ae4 1634 if (rt->server_type == RTSP_SERVER_REAL)
1256d16b
RB
1635 rt->need_subscription = 1;
1636
53620bba
RB
1637 return 0;
1638
1639fail:
50aef03b 1640 ff_rtsp_undo_setup(s, 0);
53620bba
RB
1641 return err;
1642}
1643
b8c2c41d
JA
1644void ff_rtsp_close_connections(AVFormatContext *s)
1645{
1646 RTSPState *rt = s->priv_data;
e52a9145
AK
1647 if (rt->rtsp_hd_out != rt->rtsp_hd) ffurl_close(rt->rtsp_hd_out);
1648 ffurl_close(rt->rtsp_hd);
6217b645 1649 rt->rtsp_hd = rt->rtsp_hd_out = NULL;
b8c2c41d
JA
1650}
1651
3307e6ea 1652int ff_rtsp_connect(AVFormatContext *s)
53620bba
RB
1653{
1654 RTSPState *rt = s->priv_data;
8b2e9636
LB
1655 char proto[128], host[1024], path[1024];
1656 char tcpname[1024], cmd[2048], auth[128];
1657 const char *lower_rtsp_proto = "tcp";
03f8fc08 1658 int port, err, tcp_fd;
354b7573 1659 RTSPMessageHeader reply1 = {0}, *reply = &reply1;
90abbdba 1660 int lower_transport_mask = 0;
8b2e9636 1661 int default_port = RTSP_DEFAULT_PORT;
2762a7a2 1662 char real_challenge[64] = "";
03f8fc08
MS
1663 struct sockaddr_storage peer;
1664 socklen_t peer_len = sizeof(peer);
57b5555c 1665
dbb06b8c
MS
1666 if (rt->rtp_port_max < rt->rtp_port_min) {
1667 av_log(s, AV_LOG_ERROR, "Invalid UDP port range, max port %d less "
1668 "than min port %d\n", rt->rtp_port_max,
1669 rt->rtp_port_min);
1670 return AVERROR(EINVAL);
1671 }
1672
57b5555c
MS
1673 if (!ff_network_init())
1674 return AVERROR(EIO);
eca4850c 1675
8c0ceafb 1676 if (!rt->protocols) {
ec4c4839
AK
1677 rt->protocols = ffurl_get_protocols(s->protocol_whitelist,
1678 s->protocol_blacklist);
8c0ceafb
AK
1679 if (!rt->protocols)
1680 return AVERROR(ENOMEM);
1681 }
1682
4fa57d52 1683 if (s->max_delay < 0) /* Not set by the caller */
ccfa8aa2 1684 s->max_delay = s->iformat ? DEFAULT_REORDERING_DELAY : 0;
4fa57d52 1685
f5d33f52 1686 rt->control_transport = RTSP_MODE_PLAIN;
eca4850c
MS
1687 if (rt->lower_transport_mask & (1 << RTSP_LOWER_TRANSPORT_HTTP)) {
1688 rt->lower_transport_mask = 1 << RTSP_LOWER_TRANSPORT_TCP;
1689 rt->control_transport = RTSP_MODE_TUNNEL;
1690 }
1691 /* Only pass through valid flags from here */
1692 rt->lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
eca4850c
MS
1693
1694redirect:
53620bba 1695 /* extract hostname and port */
8b2e9636 1696 av_url_split(proto, sizeof(proto), auth, sizeof(auth),
f984dcf6 1697 host, sizeof(host), &port, path, sizeof(path), s->filename);
8b2e9636
LB
1698
1699 if (!strcmp(proto, "rtsps")) {
1700 lower_rtsp_proto = "tls";
1701 default_port = RTSPS_DEFAULT_PORT;
1702 rt->lower_transport_mask = 1 << RTSP_LOWER_TRANSPORT_TCP;
1703 }
1704
f9337897 1705 if (*auth) {
aa8bf2fb 1706 av_strlcpy(rt->auth, auth, sizeof(rt->auth));
f9337897 1707 }
53620bba 1708 if (port < 0)
8b2e9636
LB
1709 port = default_port;
1710
1711 lower_transport_mask = rt->lower_transport_mask;
53620bba 1712
90abbdba 1713 if (!lower_transport_mask)
2a1d51c5 1714 lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
53620bba 1715
3e24c770 1716 if (s->oformat) {
b7dc88fc
MS
1717 /* Only UDP or TCP - UDP multicast isn't supported. */
1718 lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_UDP) |
1719 (1 << RTSP_LOWER_TRANSPORT_TCP);
f5d33f52 1720 if (!lower_transport_mask || rt->control_transport == RTSP_MODE_TUNNEL) {
3e24c770 1721 av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, "
b7dc88fc 1722 "only UDP and TCP are supported for output.\n");
3e24c770
MS
1723 err = AVERROR(EINVAL);
1724 goto fail;
1725 }
1726 }
1727
4bc5cc23
MS
1728 /* Construct the URI used in request; this is similar to s->filename,
1729 * but with authentication credentials removed and RTSP specific options
1730 * stripped out. */
8b2e9636 1731 ff_url_join(rt->control_uri, sizeof(rt->control_uri), proto, NULL,
4bc5cc23
MS
1732 host, port, "%s", path);
1733
f5d33f52
JA
1734 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1735 /* set up initial handshake for tunneling */
1736 char httpname[1024];
1737 char sessioncookie[17];
1738 char headers[1024];
1739
10ed37b5 1740 ff_url_join(httpname, sizeof(httpname), "http", auth, host, port, "%s", path);
f5d33f52
JA
1741 snprintf(sessioncookie, sizeof(sessioncookie), "%08x%08x",
1742 av_get_random_seed(), av_get_random_seed());
1743
1744 /* GET requests */
6f1b7b39 1745 if (ffurl_alloc(&rt->rtsp_hd, httpname, AVIO_FLAG_READ,
8c0ceafb 1746 &s->interrupt_callback, rt->protocols) < 0) {
f5d33f52
JA
1747 err = AVERROR(EIO);
1748 goto fail;
1749 }
1750
1751 /* generate GET headers */
1752 snprintf(headers, sizeof(headers),
1753 "x-sessioncookie: %s\r\n"
1754 "Accept: application/x-rtsp-tunnelled\r\n"
1755 "Pragma: no-cache\r\n"
1756 "Cache-Control: no-cache\r\n",
1757 sessioncookie);
196bf28c 1758 av_opt_set(rt->rtsp_hd->priv_data, "headers", headers, 0);
f5d33f52
JA
1759
1760 /* complete the connection */
ddffc2fd 1761 if (ffurl_connect(rt->rtsp_hd, NULL)) {
f5d33f52
JA
1762 err = AVERROR(EIO);
1763 goto fail;
1764 }
1765
1766 /* POST requests */
6f1b7b39 1767 if (ffurl_alloc(&rt->rtsp_hd_out, httpname, AVIO_FLAG_WRITE,
8c0ceafb 1768 &s->interrupt_callback, rt->protocols) < 0 ) {
f5d33f52
JA
1769 err = AVERROR(EIO);
1770 goto fail;
1771 }
1772
1773 /* generate POST headers */
1774 snprintf(headers, sizeof(headers),
1775 "x-sessioncookie: %s\r\n"
1776 "Content-Type: application/x-rtsp-tunnelled\r\n"
1777 "Pragma: no-cache\r\n"
1778 "Cache-Control: no-cache\r\n"
1779 "Content-Length: 32767\r\n"
1780 "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
1781 sessioncookie);
196bf28c 1782 av_opt_set(rt->rtsp_hd_out->priv_data, "headers", headers, 0);
6149485f 1783 av_opt_set(rt->rtsp_hd_out->priv_data, "chunked_post", "0", 0);
f5d33f52 1784
a8ead332
MS
1785 /* Initialize the authentication state for the POST session. The HTTP
1786 * protocol implementation doesn't properly handle multi-pass
1787 * authentication for POST requests, since it would require one of
1788 * the following:
1789 * - implementing Expect: 100-continue, which many HTTP servers
1790 * don't support anyway, even less the RTSP servers that do HTTP
1791 * tunneling
1792 * - sending the whole POST data until getting a 401 reply specifying
1793 * what authentication method to use, then resending all that data
1794 * - waiting for potential 401 replies directly after sending the
1795 * POST header (waiting for some unspecified time)
1796 * Therefore, we copy the full auth state, which works for both basic
1797 * and digest. (For digest, we would have to synchronize the nonce
1798 * count variable between the two sessions, if we'd do more requests
1799 * with the original session, though.)
1800 */
1801 ff_http_init_auth_state(rt->rtsp_hd_out, rt->rtsp_hd);
1802
9290f15d 1803 /* complete the connection */
ddffc2fd 1804 if (ffurl_connect(rt->rtsp_hd_out, NULL)) {
9290f15d
MS
1805 err = AVERROR(EIO);
1806 goto fail;
1807 }
f5d33f52 1808 } else {
48e77473 1809 /* open the tcp connection */
8b2e9636
LB
1810 ff_url_join(tcpname, sizeof(tcpname), lower_rtsp_proto, NULL,
1811 host, port, NULL);
6f1b7b39 1812 if (ffurl_open(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE,
fab8156b 1813 &s->interrupt_callback, NULL, rt->protocols, NULL) < 0) {
41874d0a
JA
1814 err = AVERROR(EIO);
1815 goto fail;
1816 }
00e4a1f4 1817 rt->rtsp_hd_out = rt->rtsp_hd;
f5d33f52 1818 }
53620bba
RB
1819 rt->seq = 0;
1820
1869ea03 1821 tcp_fd = ffurl_get_file_handle(rt->rtsp_hd);
76ccf114
VG
1822 if (tcp_fd < 0) {
1823 err = tcp_fd;
1824 goto fail;
1825 }
03f8fc08
MS
1826 if (!getpeername(tcp_fd, (struct sockaddr*) &peer, &peer_len)) {
1827 getnameinfo((struct sockaddr*) &peer, peer_len, host, sizeof(host),
1828 NULL, 0, NI_NUMERICHOST);
1829 }
1830
c8965800
RB
1831 /* request options supported by the server; this also detects server
1832 * type */
1cf151e9 1833 for (rt->server_type = RTSP_SERVER_RTP;;) {
b17d11c6 1834 cmd[0] = 0;
2e889ae4 1835 if (rt->server_type == RTSP_SERVER_REAL)
1cf151e9 1836 av_strlcat(cmd,
f75e3da5 1837 /*
1cf151e9
RB
1838 * The following entries are required for proper
1839 * streaming from a Realmedia server. They are
1840 * interdependent in some way although we currently
1841 * don't quite understand how. Values were copied
1842 * from mplayer SVN r23589.
f75e3da5
DB
1843 * ClientChallenge is a 16-byte ID in hex
1844 * CompanyID is a 16-byte ID in base64
1cf151e9
RB
1845 */
1846 "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
1847 "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
1848 "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
1849 "GUID: 00000000-0000-0000-0000-000000000000\r\n",
1850 sizeof(cmd));
b17d11c6 1851 ff_rtsp_send_cmd(s, "OPTIONS", rt->control_uri, cmd, reply, NULL);
1cf151e9
RB
1852 if (reply->status_code != RTSP_STATUS_OK) {
1853 err = AVERROR_INVALIDDATA;
1854 goto fail;
1855 }
1856
1857 /* detect server type if not standard-compliant RTP */
2e889ae4
RB
1858 if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) {
1859 rt->server_type = RTSP_SERVER_REAL;
1cf151e9 1860 continue;
bb3244de 1861 } else if (!av_strncasecmp(reply->server, "WMServer/", 9)) {
7a86bafa 1862 rt->server_type = RTSP_SERVER_WMS;
c8965800 1863 } else if (rt->server_type == RTSP_SERVER_REAL)
1cf151e9 1864 strcpy(real_challenge, reply->real_challenge);
1cf151e9
RB
1865 break;
1866 }
1867
604c9b11 1868 if (CONFIG_RTSP_DEMUXER && s->iformat)
0526c6f7 1869 err = ff_rtsp_setup_input_streams(s, reply);
44b70ce5 1870 else if (CONFIG_RTSP_MUXER)
c2688f3a 1871 err = ff_rtsp_setup_output_streams(s, host);
e23d195d 1872 if (err)
53620bba 1873 goto fail;
53620bba 1874
8a8754d8 1875 do {
c8965800
RB
1876 int lower_transport = ff_log2_tab[lower_transport_mask &
1877 ~(lower_transport_mask - 1)];
8a8754d8 1878
fef5649a 1879 err = ff_rtsp_make_setup_request(s, host, port, lower_transport,
2e889ae4 1880 rt->server_type == RTSP_SERVER_REAL ?
e9dea59f 1881 real_challenge : NULL);
8a8754d8 1882 if (err < 0)
7e6ca34f 1883 goto fail;
90abbdba
RB
1884 lower_transport_mask &= ~(1 << lower_transport);
1885 if (lower_transport_mask == 0 && err == 1) {
28c4741a 1886 err = AVERROR(EPROTONOSUPPORT);
8a8754d8
RB
1887 goto fail;
1888 }
1889 } while (err);
53620bba 1890
2762a7a2
MS
1891 rt->lower_transport_mask = lower_transport_mask;
1892 av_strlcpy(rt->real_challenge, real_challenge, sizeof(rt->real_challenge));
ff762d6e 1893 rt->state = RTSP_STATE_IDLE;
c8965800 1894 rt->seek_timestamp = 0; /* default is to start stream at position zero */
1617ad97
FB
1895 return 0;
1896 fail:
3307e6ea 1897 ff_rtsp_close_streams(s);
b8c2c41d 1898 ff_rtsp_close_connections(s);
35cfd646 1899 if (reply->status_code >=300 && reply->status_code < 400 && s->iformat) {
d243ba30 1900 av_strlcpy(s->filename, reply->location, sizeof(s->filename));
2f172f1a 1901 rt->session_id[0] = '\0';
d243ba30
LB
1902 av_log(s, AV_LOG_INFO, "Status %d: Redirecting to %s\n",
1903 reply->status_code,
1904 s->filename);
1905 goto redirect;
1906 }
57b5555c 1907 ff_network_close();
1617ad97
FB
1908 return err;
1909}
2e802e38 1910#endif /* CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER */
1617ad97 1911
44b70ce5 1912#if CONFIG_RTPDEC
ca960161
LB
1913static int parse_rtsp_message(AVFormatContext *s)
1914{
1915 RTSPState *rt = s->priv_data;
1916 int ret;
1917
1918 if (rt->rtsp_flags & RTSP_FLAG_LISTEN) {
1919 if (rt->state == RTSP_STATE_STREAMING) {
1920 if (!ff_rtsp_parse_streaming_commands(s))
1921 return AVERROR_EOF;
1922 else
1923 av_log(s, AV_LOG_WARNING,
1924 "Unable to answer to TEARDOWN\n");
1925 } else
1926 return 0;
1927 } else {
1928 RTSPMessageHeader reply;
1929 ret = ff_rtsp_read_reply(s, &reply, NULL, 0, NULL);
1930 if (ret < 0)
1931 return ret;
1932 /* XXX: parse message */
1933 if (rt->state != RTSP_STATE_STREAMING)
1934 return 0;
1935 }
1936
1937 return 0;
1938}
1939
0e59034e 1940static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
321259c1 1941 uint8_t *buf, int buf_size, int64_t wait_end)
0e59034e
RB
1942{
1943 RTSPState *rt = s->priv_data;
1944 RTSPStream *rtsp_st;
ca960161 1945 int n, i, ret, timeout_cnt = 0;
a8475bbd 1946 struct pollfd *p = rt->p;
e7993ece 1947 int *fds = NULL, fdsnum, fdsidx;
0e59034e 1948
5263f464
LB
1949 if (!p) {
1950 p = rt->p = av_malloc_array(2 * (rt->nb_rtsp_streams + 1), sizeof(struct pollfd));
1951 if (!p)
1952 return AVERROR(ENOMEM);
5263f464 1953
79331df3 1954 if (rt->rtsp_hd) {
ca960161 1955 p[rt->max_p].fd = ffurl_get_file_handle(rt->rtsp_hd);
79331df3 1956 p[rt->max_p++].events = POLLIN;
79331df3
LB
1957 }
1958 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1959 rtsp_st = rt->rtsp_streams[i];
1960 if (rtsp_st->rtp_handle) {
1961 if (ret = ffurl_get_multi_file_handle(rtsp_st->rtp_handle,
1962 &fds, &fdsnum)) {
1963 av_log(s, AV_LOG_ERROR, "Unable to recover rtp ports\n");
1964 return ret;
1965 }
1966 if (fdsnum != 2) {
1967 av_log(s, AV_LOG_ERROR,
1968 "Number of fds %d not supported\n", fdsnum);
1969 return AVERROR_INVALIDDATA;
1970 }
1971 for (fdsidx = 0; fdsidx < fdsnum; fdsidx++) {
1972 p[rt->max_p].fd = fds[fdsidx];
1973 p[rt->max_p++].events = POLLIN;
1974 }
1975 av_free(fds);
b9b82151 1976 }
b9b82151
LB
1977 }
1978 }
1979
c8965800 1980 for (;;) {
9957cdbf 1981 if (ff_check_interrupt(&s->interrupt_callback))
c76374c6 1982 return AVERROR_EXIT;
6df9d9b5 1983 if (wait_end && wait_end - av_gettime_relative() < 0)
321259c1 1984 return AVERROR(EAGAIN);
79331df3 1985 n = poll(p, rt->max_p, POLL_TIMEOUT_MS);
0e59034e 1986 if (n > 0) {
ca960161 1987 int j = rt->rtsp_hd ? 1 : 0;
9cba6f5f 1988 timeout_cnt = 0;
c8965800 1989 for (i = 0; i < rt->nb_rtsp_streams; i++) {
0e59034e
RB
1990 rtsp_st = rt->rtsp_streams[i];
1991 if (rtsp_st->rtp_handle) {
a8475bbd 1992 if (p[j].revents & POLLIN || p[j+1].revents & POLLIN) {
bc371aca 1993 ret = ffurl_read(rtsp_st->rtp_handle, buf, buf_size);
0e59034e
RB
1994 if (ret > 0) {
1995 *prtsp_st = rtsp_st;
1996 return ret;
1997 }
1998 }
a8475bbd 1999 j+=2;
0e59034e
RB
2000 }
2001 }
5fe8021a 2002#if CONFIG_RTSP_DEMUXER
ca960161 2003 if (rt->rtsp_hd && p[0].revents & POLLIN) {
f6161fcc
TM
2004 if ((ret = parse_rtsp_message(s)) < 0) {
2005 return ret;
2006 }
0e59034e 2007 }
5fe8021a 2008#endif
9cba6f5f 2009 } else if (n == 0 && ++timeout_cnt >= MAX_TIMEOUTS) {
28c4741a 2010 return AVERROR(ETIMEDOUT);
9cba6f5f
SG
2011 } else if (n < 0 && errno != EINTR)
2012 return AVERROR(errno);
0e59034e
RB
2013 }
2014}
2015
e96406ed
MS
2016static int pick_stream(AVFormatContext *s, RTSPStream **rtsp_st,
2017 const uint8_t *buf, int len)
2018{
2019 RTSPState *rt = s->priv_data;
2020 int i;
2021 if (len < 0)
2022 return len;
2023 if (rt->nb_rtsp_streams == 1) {
2024 *rtsp_st = rt->rtsp_streams[0];
2025 return len;
2026 }
2027 if (len >= 8 && rt->transport == RTSP_TRANSPORT_RTP) {
2028 if (RTP_PT_IS_RTCP(rt->recvbuf[1])) {
2029 int no_ssrc = 0;
2030 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2031 RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
2032 if (!rtpctx)
2033 continue;
2034 if (rtpctx->ssrc == AV_RB32(&buf[4])) {
2035 *rtsp_st = rt->rtsp_streams[i];
2036 return len;
2037 }
2038 if (!rtpctx->ssrc)
2039 no_ssrc = 1;
2040 }
2041 if (no_ssrc) {
2042 av_log(s, AV_LOG_WARNING,
2043 "Unable to pick stream for packet - SSRC not known for "
2044 "all streams\n");
2045 return AVERROR(EAGAIN);
2046 }
2047 } else {
2048 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2049 if ((buf[1] & 0x7f) == rt->rtsp_streams[i]->sdp_payload_type) {
2050 *rtsp_st = rt->rtsp_streams[i];
2051 return len;
2052 }
2053 }
2054 }
2055 }
2056 av_log(s, AV_LOG_WARNING, "Unable to pick stream for packet\n");
2057 return AVERROR(EAGAIN);
2058}
2059
150e99d6
LB
2060static int read_packet(AVFormatContext *s,
2061 RTSPStream **rtsp_st, RTSPStream *first_queue_st,
2062 int64_t wait_end)
2063{
2064 RTSPState *rt = s->priv_data;
2065 int len;
2066
2067 switch(rt->lower_transport) {
2068 default:
2069#if CONFIG_RTSP_DEMUXER
2070 case RTSP_LOWER_TRANSPORT_TCP:
2071 len = ff_rtsp_tcp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE);
2072 break;
2073#endif
2074 case RTSP_LOWER_TRANSPORT_UDP:
2075 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
2076 len = udp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
2077 if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
2078 ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, (*rtsp_st)->rtp_handle, NULL, len);
2079 break;
2080 case RTSP_LOWER_TRANSPORT_CUSTOM:
2081 if (first_queue_st && rt->transport == RTSP_TRANSPORT_RTP &&
2082 wait_end && wait_end < av_gettime_relative())
2083 len = AVERROR(EAGAIN);
2084 else
173b5621 2085 len = avio_read_partial(s->pb, rt->recvbuf, RECVBUF_SIZE);
150e99d6
LB
2086 len = pick_stream(s, rtsp_st, rt->recvbuf, len);
2087 if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
2088 ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, NULL, s->pb, len);
2089 break;
2090 }
2091
2092 if (len == 0)
2093 return AVERROR_EOF;
2094
2095 return len;
2096}
2097
0526c6f7 2098int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
0e59034e
RB
2099{
2100 RTSPState *rt = s->priv_data;
2101 int ret, len;
321259c1
MS
2102 RTSPStream *rtsp_st, *first_queue_st = NULL;
2103 int64_t wait_end = 0;
0e59034e 2104
b20359f5
JA
2105 if (rt->nb_byes == rt->nb_rtsp_streams)
2106 return AVERROR_EOF;
2107
0e59034e
RB
2108 /* get next frames from the same RTP packet */
2109 if (rt->cur_transport_priv) {
c8965800 2110 if (rt->transport == RTSP_TRANSPORT_RDT) {
0e59034e 2111 ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
1243c722 2112 } else if (rt->transport == RTSP_TRANSPORT_RTP) {
bfc6db44 2113 ret = ff_rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
604c9b11 2114 } else if (CONFIG_RTPDEC && rt->ts) {
1243c722
MS
2115 ret = ff_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf + rt->recvbuf_pos, rt->recvbuf_len - rt->recvbuf_pos);
2116 if (ret >= 0) {
2117 rt->recvbuf_pos += ret;
2118 ret = rt->recvbuf_pos < rt->recvbuf_len;
2119 }
2f41eaa9
MS
2120 } else
2121 ret = -1;
0e59034e
RB
2122 if (ret == 0) {
2123 rt->cur_transport_priv = NULL;
2124 return 0;
2125 } else if (ret == 1) {
2126 return 0;
c8965800 2127 } else
0e59034e 2128 rt->cur_transport_priv = NULL;
0e59034e
RB
2129 }
2130
8729698d 2131redo:
321259c1
MS
2132 if (rt->transport == RTSP_TRANSPORT_RTP) {
2133 int i;
2134 int64_t first_queue_time = 0;
2135 for (i = 0; i < rt->nb_rtsp_streams; i++) {
2136 RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
9e99f84f
MS
2137 int64_t queue_time;
2138 if (!rtpctx)
2139 continue;
2140 queue_time = ff_rtp_queued_packet_time(rtpctx);
321259c1
MS
2141 if (queue_time && (queue_time - first_queue_time < 0 ||
2142 !first_queue_time)) {
2143 first_queue_time = queue_time;
2144 first_queue_st = rt->rtsp_streams[i];
2145 }
2146 }
8729698d 2147 if (first_queue_time) {
321259c1 2148 wait_end = first_queue_time + s->max_delay;
8729698d
MS
2149 } else {
2150 wait_end = 0;
2151 first_queue_st = NULL;
2152 }
321259c1
MS
2153 }
2154
0e59034e 2155 /* read next RTP packet */
96a7c975
MS
2156 if (!rt->recvbuf) {
2157 rt->recvbuf = av_malloc(RECVBUF_SIZE);
2158 if (!rt->recvbuf)
2159 return AVERROR(ENOMEM);
2160 }
2161
150e99d6 2162 len = read_packet(s, &rtsp_st, first_queue_st, wait_end);
321259c1
MS
2163 if (len == AVERROR(EAGAIN) && first_queue_st &&
2164 rt->transport == RTSP_TRANSPORT_RTP) {
1ec611a1
EB
2165 av_log(s, AV_LOG_WARNING,
2166 "max delay reached. need to consume packet\n");
321259c1 2167 rtsp_st = first_queue_st;
bfc6db44 2168 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, NULL, 0);
321259c1
MS
2169 goto end;
2170 }
0e59034e
RB
2171 if (len < 0)
2172 return len;
150e99d6 2173
c8965800 2174 if (rt->transport == RTSP_TRANSPORT_RDT) {
ad4ad27f 2175 ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
df8cf076 2176 } else if (rt->transport == RTSP_TRANSPORT_RTP) {
bfc6db44 2177 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
86d9181c
MS
2178 if (rtsp_st->feedback) {
2179 AVIOContext *pb = NULL;
2180 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_CUSTOM)
2181 pb = s->pb;
2182 ff_rtp_send_rtcp_feedback(rtsp_st->transport_priv, rtsp_st->rtp_handle, pb);
2183 }
2cab6b48
MS
2184 if (ret < 0) {
2185 /* Either bad packet, or a RTCP packet. Check if the
2186 * first_rtcp_ntp_time field was initialized. */
2187 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
2188 if (rtpctx->first_rtcp_ntp_time != AV_NOPTS_VALUE) {
2189 /* first_rtcp_ntp_time has been initialized for this stream,
2190 * copy the same value to all other uninitialized streams,
2191 * in order to map their timestamp origin to the same ntp time
2192 * as this one. */
2193 int i;
3a1cdcc7
MS
2194 AVStream *st = NULL;
2195 if (rtsp_st->stream_index >= 0)
2196 st = s->streams[rtsp_st->stream_index];
2cab6b48 2197 for (i = 0; i < rt->nb_rtsp_streams; i++) {
744a882f 2198 RTPDemuxContext *rtpctx2 = rt->rtsp_streams[i]->transport_priv;
3a1cdcc7
MS
2199 AVStream *st2 = NULL;
2200 if (rt->rtsp_streams[i]->stream_index >= 0)
2201 st2 = s->streams[rt->rtsp_streams[i]->stream_index];
2202 if (rtpctx2 && st && st2 &&
2203 rtpctx2->first_rtcp_ntp_time == AV_NOPTS_VALUE) {
2cab6b48 2204 rtpctx2->first_rtcp_ntp_time = rtpctx->first_rtcp_ntp_time;
3a1cdcc7
MS
2205 rtpctx2->rtcp_ts_offset = av_rescale_q(
2206 rtpctx->rtcp_ts_offset, st->time_base,
2207 st2->time_base);
2208 }
2cab6b48
MS
2209 }
2210 }
b20359f5
JA
2211 if (ret == -RTCP_BYE) {
2212 rt->nb_byes++;
2213
2214 av_log(s, AV_LOG_DEBUG, "Received BYE for stream %d (%d/%d)\n",
2215 rtsp_st->stream_index, rt->nb_byes, rt->nb_rtsp_streams);
2216
2217 if (rt->nb_byes == rt->nb_rtsp_streams)
2218 return AVERROR_EOF;
2219 }
2cab6b48 2220 }
604c9b11 2221 } else if (CONFIG_RTPDEC && rt->ts) {
1243c722
MS
2222 ret = ff_mpegts_parse_packet(rt->ts, pkt, rt->recvbuf, len);
2223 if (ret >= 0) {
2224 if (ret < len) {
2225 rt->recvbuf_len = len;
2226 rt->recvbuf_pos = ret;
2227 rt->cur_transport_priv = rt->ts;
2228 return 1;
2229 } else {
2230 ret = 0;
2231 }
2232 }
df8cf076
MS
2233 } else {
2234 return AVERROR_INVALIDDATA;
2cab6b48 2235 }
321259c1 2236end:
0e59034e
RB
2237 if (ret < 0)
2238 goto redo;
c8965800 2239 if (ret == 1)
0e59034e
RB
2240 /* more packets may follow, so we save the RTP context */
2241 rt->cur_transport_priv = rtsp_st->transport_priv;
0e59034e
RB
2242
2243 return ret;
2244}
44b70ce5 2245#endif /* CONFIG_RTPDEC */
0e59034e 2246
44b70ce5 2247#if CONFIG_SDP_DEMUXER
cb1fdc61 2248static int sdp_probe(AVProbeData *p1)
93ced3e8 2249{
0e1ceacd 2250 const char *p = p1->buf, *p_end = p1->buf + p1->buf_size;
cb1fdc61 2251
3fbd12d1 2252 /* we look for a line beginning "c=IN IP" */
0e1ceacd 2253 while (p < p_end && *p != '\0') {
3fbd12d1
MS
2254 if (p + sizeof("c=IN IP") - 1 < p_end &&
2255 av_strstart(p, "c=IN IP", NULL))
e0f8be64 2256 return AVPROBE_SCORE_EXTENSION;
0e1ceacd 2257
c8965800 2258 while (p < p_end - 1 && *p != '\n') p++;
0e1ceacd 2259 if (++p >= p_end)
cb1fdc61 2260 break;
cb1fdc61
FB
2261 if (*p == '\r')
2262 p++;
2263 }
93ced3e8
FB
2264 return 0;
2265}
2266
1f57d601
ET
2267static void append_source_addrs(char *buf, int size, const char *name,
2268 int count, struct RTSPSource **addrs)
2269{
2270 int i;
2271 if (!count)
2272 return;
2273 av_strlcatf(buf, size, "&%s=%s", name, addrs[0]->addr);
2274 for (i = 1; i < count; i++)
2275 av_strlcatf(buf, size, ",%s", addrs[i]->addr);
2276}
2277
6e9651d1 2278static int sdp_read_header(AVFormatContext *s)
93ced3e8 2279{
8b1ab7bf 2280 RTSPState *rt = s->priv_data;
93ced3e8
FB
2281 RTSPStream *rtsp_st;
2282 int size, i, err;
2283 char *content;
2284 char url[1024];
2285
57b5555c
MS
2286 if (!ff_network_init())
2287 return AVERROR(EIO);
2288
8c0ceafb 2289 if (!rt->protocols) {
ec4c4839
AK
2290 rt->protocols = ffurl_get_protocols(s->protocol_whitelist,
2291 s->protocol_blacklist);
8c0ceafb
AK
2292 if (!rt->protocols)
2293 return AVERROR(ENOMEM);
2294 }
2295
4fa57d52 2296 if (s->max_delay < 0) /* Not set by the caller */
ccfa8aa2 2297 s->max_delay = DEFAULT_REORDERING_DELAY;
e96406ed
MS
2298 if (rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)
2299 rt->lower_transport = RTSP_LOWER_TRANSPORT_CUSTOM;
4fa57d52 2300
93ced3e8
FB
2301 /* read the whole sdp file */
2302 /* XXX: better loading */
2303 content = av_malloc(SDP_MAX_SIZE);
0b72a47f
HS
2304 if (!content)
2305 return AVERROR(ENOMEM);
b7effd4e 2306 size = avio_read(s->pb, content, SDP_MAX_SIZE - 1);
93ced3e8
FB
2307 if (size <= 0) {
2308 av_free(content);
2309 return AVERROR_INVALIDDATA;
2310 }
2311 content[size] ='\0';
2312
f81c7ac7 2313 err = ff_sdp_parse(s, content);
93ced3e8 2314 av_free(content);
f81c7ac7 2315 if (err) goto fail;
93ced3e8
FB
2316
2317 /* open each RTP stream */
c8965800 2318 for (i = 0; i < rt->nb_rtsp_streams; i++) {
3fbd12d1 2319 char namebuf[50];
8b1ab7bf 2320 rtsp_st = rt->rtsp_streams[i];
115329f1 2321
e96406ed 2322 if (!(rt->rtsp_flags & RTSP_FLAG_CUSTOM_IO)) {
e3ec6fe7
LB
2323 AVDictionary *opts = map_to_opts(rt);
2324
98063bcf
LB
2325 err = getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip,
2326 sizeof(rtsp_st->sdp_ip),
2327 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
2328 if (err) {
2329 av_log(s, AV_LOG_ERROR, "getnameinfo: %s\n", gai_strerror(err));
2330 err = AVERROR(EIO);
d5f5c90b 2331 av_dict_free(&opts);
98063bcf
LB
2332 goto fail;
2333 }
e96406ed
MS
2334 ff_url_join(url, sizeof(url), "rtp", NULL,
2335 namebuf, rtsp_st->sdp_port,
b56fc18b
MS
2336 "?localport=%d&ttl=%d&connect=%d&write_to_source=%d",
2337 rtsp_st->sdp_port, rtsp_st->sdp_ttl,
2338 rt->rtsp_flags & RTSP_FLAG_FILTER_SRC ? 1 : 0,
2339 rt->rtsp_flags & RTSP_FLAG_RTCP_TO_SOURCE ? 1 : 0);
1f57d601
ET
2340
2341 append_source_addrs(url, sizeof(url), "sources",
2342 rtsp_st->nb_include_source_addrs,
2343 rtsp_st->include_source_addrs);
2344 append_source_addrs(url, sizeof(url), "block",
2345 rtsp_st->nb_exclude_source_addrs,
2346 rtsp_st->exclude_source_addrs);
e3ec6fe7 2347 err = ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
fab8156b 2348 &s->interrupt_callback, &opts, rt->protocols, NULL);
e3ec6fe7
LB
2349
2350 av_dict_free(&opts);
2351
2352 if (err < 0) {
e96406ed
MS
2353 err = AVERROR_INVALIDDATA;
2354 goto fail;
2355 }
93ced3e8 2356 }
6e71c120 2357 if ((err = ff_rtsp_open_transport_ctx(s, rtsp_st)))
8b1ab7bf 2358 goto fail;
93ced3e8
FB
2359 }
2360 return 0;
c8965800 2361fail:
3307e6ea 2362 ff_rtsp_close_streams(s);
57b5555c 2363 ff_network_close();
93ced3e8
FB
2364 return err;
2365}
2366
93ced3e8
FB
2367static int sdp_read_close(AVFormatContext *s)
2368{
3307e6ea 2369 ff_rtsp_close_streams(s);
57b5555c 2370 ff_network_close();
93ced3e8
FB
2371 return 0;
2372}
2373
51369f28
MS
2374static const AVClass sdp_demuxer_class = {
2375 .class_name = "SDP demuxer",
2376 .item_name = av_default_item_name,
2377 .option = sdp_options,
2378 .version = LIBAVUTIL_VERSION_INT,
2379};
2380
c6610a21 2381AVInputFormat ff_sdp_demuxer = {
dfc2c4d9
AK
2382 .name = "sdp",
2383 .long_name = NULL_IF_CONFIG_SMALL("SDP"),
2384 .priv_data_size = sizeof(RTSPState),
2385 .read_probe = sdp_probe,
2386 .read_header = sdp_read_header,
2387 .read_packet = ff_rtsp_fetch_packet,
2388 .read_close = sdp_read_close,
17934c18 2389 .priv_class = &sdp_demuxer_class,
93ced3e8 2390};
44b70ce5 2391#endif /* CONFIG_SDP_DEMUXER */
44594cc7 2392
44b70ce5 2393#if CONFIG_RTP_DEMUXER
44594cc7
MS
2394static int rtp_probe(AVProbeData *p)
2395{
2396 if (av_strstart(p->filename, "rtp:", NULL))
2397 return AVPROBE_SCORE_MAX;
2398 return 0;
2399}
2400
6e9651d1 2401static int rtp_read_header(AVFormatContext *s)
44594cc7 2402{
350ad50b 2403 uint8_t recvbuf[RTP_MAX_PACKET_LENGTH];
44594cc7
MS
2404 char host[500], sdp[500];
2405 int ret, port;
2406 URLContext* in = NULL;
2407 int payload_type;
9200514a 2408 AVCodecParameters *par = NULL;
44594cc7 2409 struct sockaddr_storage addr;
ae628ec1 2410 AVIOContext pb;
44594cc7 2411 socklen_t addrlen = sizeof(addr);
30266038 2412 RTSPState *rt = s->priv_data;
44594cc7
MS
2413
2414 if (!ff_network_init())
2415 return AVERROR(EIO);
2416
8c0ceafb 2417 if (!rt->protocols) {
ec4c4839
AK
2418 rt->protocols = ffurl_get_protocols(s->protocol_whitelist,
2419 s->protocol_blacklist);
8c0ceafb
AK
2420 if (!rt->protocols)
2421 return AVERROR(ENOMEM);
2422 }
2423
6f1b7b39 2424 ret = ffurl_open(&in, s->filename, AVIO_FLAG_READ,
fab8156b 2425 &s->interrupt_callback, NULL, rt->protocols, NULL);
44594cc7
MS
2426 if (ret)
2427 goto fail;
2428
2429 while (1) {
bc371aca 2430 ret = ffurl_read(in, recvbuf, sizeof(recvbuf));
44594cc7
MS
2431 if (ret == AVERROR(EAGAIN))
2432 continue;
2433 if (ret < 0)
2434 goto fail;
2435 if (ret < 12) {
2436 av_log(s, AV_LOG_WARNING, "Received too short packet\n");
2437 continue;
2438 }
2439
2440 if ((recvbuf[0] & 0xc0) != 0x80) {
2441 av_log(s, AV_LOG_WARNING, "Unsupported RTP version packet "
2442 "received\n");
2443 continue;
2444 }
2445
298a587f 2446 if (RTP_PT_IS_RTCP(recvbuf[1]))
f3a094f2
MS
2447 continue;
2448
44594cc7
MS
2449 payload_type = recvbuf[1] & 0x7f;
2450 break;
2451 }
1869ea03 2452 getsockname(ffurl_get_file_handle(in), (struct sockaddr*) &addr, &addrlen);
e52a9145 2453 ffurl_close(in);
44594cc7
MS
2454 in = NULL;
2455
9200514a
AK
2456 par = avcodec_parameters_alloc();
2457 if (!par) {
2458 ret = AVERROR(ENOMEM);
2459 goto fail;
2460 }
2461
2462 if (ff_rtp_get_codec_info(par, payload_type)) {
44594cc7
MS
2463 av_log(s, AV_LOG_ERROR, "Unable to receive RTP payload type %d "
2464 "without an SDP file describing it\n",
2465 payload_type);
2466 goto fail;
2467 }
9200514a 2468 if (par->codec_type != AVMEDIA_TYPE_DATA) {
44594cc7
MS
2469 av_log(s, AV_LOG_WARNING, "Guessing on RTP content - if not received "
2470 "properly you need an SDP file "
2471 "describing it\n");
2472 }
2473
2474 av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port,
2475 NULL, 0, s->filename);
2476
2477 snprintf(sdp, sizeof(sdp),
2478 "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
2479 addr.ss_family == AF_INET ? 4 : 6, host,
9200514a
AK
2480 par->codec_type == AVMEDIA_TYPE_DATA ? "application" :
2481 par->codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
44594cc7
MS
2482 port, payload_type);
2483 av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
9200514a 2484 avcodec_parameters_free(&par);
44594cc7 2485
e731b8d8 2486 ffio_init_context(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
44594cc7
MS
2487 s->pb = &pb;
2488
2489 /* sdp_read_header initializes this again */
2490 ff_network_close();
2491
30266038
MS
2492 rt->media_type_mask = (1 << (AVMEDIA_TYPE_DATA+1)) - 1;
2493
6e9651d1 2494 ret = sdp_read_header(s);
44594cc7
MS
2495 s->pb = NULL;
2496 return ret;
2497
2498fail:
9200514a 2499 avcodec_parameters_free(&par);
44594cc7 2500 if (in)
e52a9145 2501 ffurl_close(in);
44594cc7
MS
2502 ff_network_close();
2503 return ret;
2504}
2505
51369f28
MS
2506static const AVClass rtp_demuxer_class = {
2507 .class_name = "RTP demuxer",
2508 .item_name = av_default_item_name,
2509 .option = rtp_options,
2510 .version = LIBAVUTIL_VERSION_INT,
2511};
2512
c6610a21 2513AVInputFormat ff_rtp_demuxer = {
dfc2c4d9 2514 .name = "rtp",
6774247a 2515 .long_name = NULL_IF_CONFIG_SMALL("RTP input"),
dfc2c4d9
AK
2516 .priv_data_size = sizeof(RTSPState),
2517 .read_probe = rtp_probe,
2518 .read_header = rtp_read_header,
2519 .read_packet = ff_rtsp_fetch_packet,
2520 .read_close = sdp_read_close,
17934c18
MS
2521 .flags = AVFMT_NOFILE,
2522 .priv_class = &rtp_demuxer_class,
44594cc7 2523};
44b70ce5 2524#endif /* CONFIG_RTP_DEMUXER */