lavfi: port libmpcodecs delogo filter
[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"
1617ad97 29#include "avformat.h"
e731b8d8 30#include "avio_internal.h"
1617ad97 31
db0ed93e 32#include <sys/time.h>
a8475bbd
LB
33#if HAVE_POLL_H
34#include <poll.h>
6ad1c9c9 35#endif
ea452b54 36#include <strings.h>
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"
e9dea59f 44#include "rdt.h"
965a3ddb 45#include "rtpdec_formats.h"
a493f80a 46#include "rtpenc_chain.h"
5652bb94 47#include "url.h"
4934884a 48
1617ad97
FB
49//#define DEBUG
50
a8475bbd 51/* Timeout values for socket poll, in ms,
9cba6f5f 52 * and read_packet(), in seconds */
a8475bbd 53#define POLL_TIMEOUT_MS 100
9cba6f5f 54#define READ_PACKET_TIMEOUT_S 10
a8475bbd 55#define MAX_TIMEOUTS READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS
91af5601 56#define SDP_MAX_SIZE 16384
96a7c975 57#define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
9cba6f5f 58
1ef36a70
RB
59static void get_word_until_chars(char *buf, int buf_size,
60 const char *sep, const char **pp)
1617ad97
FB
61{
62 const char *p;
63 char *q;
64
65 p = *pp;
30619e6e 66 p += strspn(p, SPACE_CHARS);
1617ad97
FB
67 q = buf;
68 while (!strchr(sep, *p) && *p != '\0') {
69 if ((q - buf) < buf_size - 1)
70 *q++ = *p;
71 p++;
72 }
73 if (buf_size > 0)
74 *q = '\0';
75 *pp = p;
76}
77
1ef36a70
RB
78static void get_word_sep(char *buf, int buf_size, const char *sep,
79 const char **pp)
1617ad97 80{
1ef36a70
RB
81 if (**pp == '/') (*pp)++;
82 get_word_until_chars(buf, buf_size, sep, pp);
83}
1617ad97 84
1ef36a70
RB
85static void get_word(char *buf, int buf_size, const char **pp)
86{
87 get_word_until_chars(buf, buf_size, SPACE_CHARS, pp);
1617ad97
FB
88}
89
8bf0f969
MS
90/** Parse a string p in the form of Range:npt=xx-xx, and determine the start
91 * and end time.
92 * Used for seeking in the rtp stream.
93 */
94static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end)
95{
96 char buf[256];
97
98 p += strspn(p, SPACE_CHARS);
99 if (!av_stristart(p, "npt=", &p))
100 return;
101
102 *start = AV_NOPTS_VALUE;
103 *end = AV_NOPTS_VALUE;
104
105 get_word_sep(buf, sizeof(buf), "-", &p);
9fcae973 106 av_parse_time(start, buf, 1);
8bf0f969
MS
107 if (*p == '-') {
108 p++;
109 get_word_sep(buf, sizeof(buf), "-", &p);
9fcae973 110 av_parse_time(end, buf, 1);
8bf0f969
MS
111 }
112// av_log(NULL, AV_LOG_DEBUG, "Range Start: %lld\n", *start);
113// av_log(NULL, AV_LOG_DEBUG, "Range End: %lld\n", *end);
114}
115
116static int get_sockaddr(const char *buf, struct sockaddr_storage *sock)
117{
118 struct addrinfo hints, *ai = NULL;
119 memset(&hints, 0, sizeof(hints));
120 hints.ai_flags = AI_NUMERICHOST;
121 if (getaddrinfo(buf, NULL, &hints, &ai))
122 return -1;
123 memcpy(sock, ai->ai_addr, FFMIN(sizeof(*sock), ai->ai_addrlen));
124 freeaddrinfo(ai);
125 return 0;
126}
127
44b70ce5 128#if CONFIG_RTPDEC
003eb642
MS
129static void init_rtp_handler(RTPDynamicProtocolHandler *handler,
130 RTSPStream *rtsp_st, AVCodecContext *codec)
131{
132 if (!handler)
133 return;
134 codec->codec_id = handler->codec_id;
135 rtsp_st->dynamic_handler = handler;
9261e6cf
MS
136 if (handler->alloc)
137 rtsp_st->dynamic_protocol_context = handler->alloc();
003eb642
MS
138}
139
c8965800 140/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */
8f3c87f3 141static int sdp_parse_rtpmap(AVFormatContext *s,
86b6e387 142 AVStream *st, RTSPStream *rtsp_st,
c8965800 143 int payload_type, const char *p)
93ced3e8 144{
86b6e387 145 AVCodecContext *codec = st->codec;
93ced3e8 146 char buf[256];
d1ccf0e0
RD
147 int i;
148 AVCodec *c;
7b49ce2e 149 const char *c_name;
93ced3e8 150
d1ccf0e0 151 /* Loop into AVRtpDynamicPayloadTypes[] and AVRtpPayloadTypes[] and
9d50d396
RB
152 * see if we can handle this kind of payload.
153 * The space should normally not be there but some Real streams or
154 * particular servers ("RealServer Version 6.1.3.970", see issue 1658)
155 * have a trailing space. */
156 get_word_sep(buf, sizeof(buf), "/ ", &p);
d1ccf0e0 157 if (payload_type >= RTP_PT_PRIVATE) {
003eb642
MS
158 RTPDynamicProtocolHandler *handler =
159 ff_rtp_handler_find_by_name(buf, codec->codec_type);
160 init_rtp_handler(handler, rtsp_st, codec);
160918d5
MS
161 /* If no dynamic handler was found, check with the list of standard
162 * allocated types, if such a stream for some reason happens to
163 * use a private payload type. This isn't handled in rtpdec.c, since
164 * the format name from the rtpmap line never is passed into rtpdec. */
165 if (!rtsp_st->dynamic_handler)
166 codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
93ced3e8 167 } else {
c8965800
RB
168 /* We are in a standard case
169 * (from http://www.iana.org/assignments/rtp-parameters). */
d1ccf0e0 170 /* search into AVRtpPayloadTypes[] */
7ed19d7f 171 codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type);
d1ccf0e0
RD
172 }
173
174 c = avcodec_find_decoder(codec->codec_id);
175 if (c && c->name)
7b49ce2e 176 c_name = c->name;
d1ccf0e0 177 else
170870b7 178 c_name = "(null)";
d1ccf0e0 179
7515ed0c
RB
180 get_word_sep(buf, sizeof(buf), "/", &p);
181 i = atoi(buf);
182 switch (codec->codec_type) {
72415b2a 183 case AVMEDIA_TYPE_AUDIO:
7515ed0c
RB
184 av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name);
185 codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE;
186 codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS;
187 if (i > 0) {
188 codec->sample_rate = i;
86b6e387 189 av_set_pts_info(st, 32, 1, codec->sample_rate);
7515ed0c
RB
190 get_word_sep(buf, sizeof(buf), "/", &p);
191 i = atoi(buf);
192 if (i > 0)
193 codec->channels = i;
194 // TODO: there is a bug here; if it is a mono stream, and
195 // less than 22000Hz, faad upconverts to stereo and twice
196 // the frequency. No problem, but the sample rate is being
197 // set here by the sdp line. Patch on its way. (rdm)
d1ccf0e0 198 }
7515ed0c
RB
199 av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n",
200 codec->sample_rate);
201 av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n",
202 codec->channels);
203 break;
72415b2a 204 case AVMEDIA_TYPE_VIDEO:
7515ed0c 205 av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name);
86b6e387
MS
206 if (i > 0)
207 av_set_pts_info(st, 32, 1, i);
7515ed0c
RB
208 break;
209 default:
210 break;
211 }
212 return 0;
93ced3e8
FB
213}
214
c2bfd816 215/* parse the attribute line from the fmtp a line of an sdp response. This
c8965800
RB
216 * is broken out as a function because it is used in rtp_h264.c, which is
217 * forthcoming. */
3307e6ea 218int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size,
93993933 219 char *value, int value_size)
d0deedcb 220{
30619e6e 221 *p += strspn(*p, SPACE_CHARS);
c8965800 222 if (**p) {
d0deedcb
RM
223 get_word_sep(attr, attr_size, "=", p);
224 if (**p == '=')
225 (*p)++;
226 get_word_sep(value, value_size, ";", p);
227 if (**p == ';')
228 (*p)++;
229 return 1;
230 }
231 return 0;
232}
233
93ced3e8
FB
234typedef struct SDPParseState {
235 /* SDP only */
3fbd12d1 236 struct sockaddr_storage default_ip;
c8965800
RB
237 int default_ttl;
238 int skip_media; ///< set if an unknown m= line occurs
93ced3e8
FB
239} SDPParseState;
240
241static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
1617ad97
FB
242 int letter, const char *buf)
243{
8b1ab7bf 244 RTSPState *rt = s->priv_data;
1617ad97
FB
245 char buf1[64], st_type[64];
246 const char *p;
72415b2a 247 enum AVMediaType codec_type;
fb65d2ca 248 int payload_type, i;
1617ad97
FB
249 AVStream *st;
250 RTSPStream *rtsp_st;
3fbd12d1 251 struct sockaddr_storage sdp_ip;
93ced3e8
FB
252 int ttl;
253
dfd2a005 254 av_dlog(s, "sdp: %c='%s'\n", letter, buf);
1617ad97
FB
255
256 p = buf;
cb760a47
RB
257 if (s1->skip_media && letter != 'm')
258 return;
c8965800 259 switch (letter) {
93ced3e8
FB
260 case 'c':
261 get_word(buf1, sizeof(buf1), &p);
262 if (strcmp(buf1, "IN") != 0)
263 return;
264 get_word(buf1, sizeof(buf1), &p);
3fbd12d1 265 if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6"))
93ced3e8
FB
266 return;
267 get_word_sep(buf1, sizeof(buf1), "/", &p);
3fbd12d1 268 if (get_sockaddr(buf1, &sdp_ip))
93ced3e8
FB
269 return;
270 ttl = 16;
271 if (*p == '/') {
272 p++;
273 get_word_sep(buf1, sizeof(buf1), "/", &p);
274 ttl = atoi(buf1);
275 }
276 if (s->nb_streams == 0) {
277 s1->default_ip = sdp_ip;
278 s1->default_ttl = ttl;
279 } else {
d9c0510e 280 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
93ced3e8
FB
281 rtsp_st->sdp_ip = sdp_ip;
282 rtsp_st->sdp_ttl = ttl;
283 }
284 break;
1617ad97 285 case 's':
d2d67e42 286 av_dict_set(&s->metadata, "title", p, 0);
1617ad97
FB
287 break;
288 case 'i':
289 if (s->nb_streams == 0) {
d2d67e42 290 av_dict_set(&s->metadata, "comment", p, 0);
1617ad97
FB
291 break;
292 }
293 break;
294 case 'm':
295 /* new stream */
cb760a47 296 s1->skip_media = 0;
1617ad97
FB
297 get_word(st_type, sizeof(st_type), &p);
298 if (!strcmp(st_type, "audio")) {
72415b2a 299 codec_type = AVMEDIA_TYPE_AUDIO;
1617ad97 300 } else if (!strcmp(st_type, "video")) {
72415b2a 301 codec_type = AVMEDIA_TYPE_VIDEO;
090438cc 302 } else if (!strcmp(st_type, "application")) {
72415b2a 303 codec_type = AVMEDIA_TYPE_DATA;
1617ad97 304 } else {
cb760a47 305 s1->skip_media = 1;
1617ad97
FB
306 return;
307 }
1617ad97
FB
308 rtsp_st = av_mallocz(sizeof(RTSPStream));
309 if (!rtsp_st)
310 return;
8b1ab7bf
FB
311 rtsp_st->stream_index = -1;
312 dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
93ced3e8
FB
313
314 rtsp_st->sdp_ip = s1->default_ip;
315 rtsp_st->sdp_ttl = s1->default_ttl;
316
93ced3e8
FB
317 get_word(buf1, sizeof(buf1), &p); /* port */
318 rtsp_st->sdp_port = atoi(buf1);
319
320 get_word(buf1, sizeof(buf1), &p); /* protocol (ignored) */
115329f1 321
93ced3e8
FB
322 /* XXX: handle list of formats */
323 get_word(buf1, sizeof(buf1), &p); /* format list */
324 rtsp_st->sdp_payload_type = atoi(buf1);
93ced3e8 325
7ed19d7f 326 if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) {
8b1ab7bf
FB
327 /* no corresponding stream */
328 } else {
b2dd842d 329 st = av_new_stream(s, rt->nb_rtsp_streams - 1);
8b1ab7bf
FB
330 if (!st)
331 return;
8b1ab7bf 332 rtsp_st->stream_index = st->index;
01f4895c 333 st->codec->codec_type = codec_type;
d1ccf0e0 334 if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) {
6a7e31a9 335 RTPDynamicProtocolHandler *handler;
8b1ab7bf 336 /* if standard payload type, we can find the codec right now */
bf6d9818 337 ff_rtp_get_codec_info(st->codec, rtsp_st->sdp_payload_type);
bbd8f547
MS
338 if (st->codec->codec_type == AVMEDIA_TYPE_AUDIO &&
339 st->codec->sample_rate > 0)
86b6e387 340 av_set_pts_info(st, 32, 1, st->codec->sample_rate);
6a7e31a9
MS
341 /* Even static payload types may need a custom depacketizer */
342 handler = ff_rtp_handler_find_by_id(
343 rtsp_st->sdp_payload_type, st->codec->codec_type);
344 init_rtp_handler(handler, rtsp_st, st->codec);
8b1ab7bf
FB
345 }
346 }
1617ad97 347 /* put a default control url */
00eb13e0 348 av_strlcpy(rtsp_st->control_url, rt->control_uri,
c8965800 349 sizeof(rtsp_st->control_url));
1617ad97
FB
350 break;
351 case 'a':
00eb13e0
AS
352 if (av_strstart(p, "control:", &p)) {
353 if (s->nb_streams == 0) {
354 if (!strncmp(p, "rtsp://", 7))
355 av_strlcpy(rt->control_uri, p,
356 sizeof(rt->control_uri));
357 } else {
0b6a7ff4
MS
358 char proto[32];
359 /* get the control url */
d9c0510e 360 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
115329f1 361
0b6a7ff4
MS
362 /* XXX: may need to add full url resolution */
363 av_url_split(proto, sizeof(proto), NULL, 0, NULL, 0,
364 NULL, NULL, 0, p);
365 if (proto[0] == '\0') {
366 /* relative control URL */
367 if (rtsp_st->control_url[strlen(rtsp_st->control_url)-1]!='/')
368 av_strlcat(rtsp_st->control_url, "/",
369 sizeof(rtsp_st->control_url));
370 av_strlcat(rtsp_st->control_url, p,
371 sizeof(rtsp_st->control_url));
372 } else
373 av_strlcpy(rtsp_st->control_url, p,
374 sizeof(rtsp_st->control_url));
00eb13e0 375 }
83d14c85 376 } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) {
93ced3e8 377 /* NOTE: rtpmap is only supported AFTER the 'm=' tag */
115329f1 378 get_word(buf1, sizeof(buf1), &p);
93ced3e8 379 payload_type = atoi(buf1);
83d14c85 380 st = s->streams[s->nb_streams - 1];
d9c0510e 381 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
86b6e387 382 sdp_parse_rtpmap(s, st, rtsp_st, payload_type, p);
7fc8ac7f
JA
383 } else if (av_strstart(p, "fmtp:", &p) ||
384 av_strstart(p, "framesize:", &p)) {
93ced3e8 385 /* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */
d0deedcb
RM
386 // let dynamic protocol handlers have a stab at the line.
387 get_word(buf1, sizeof(buf1), &p);
388 payload_type = atoi(buf1);
d9c0510e
MS
389 for (i = 0; i < rt->nb_rtsp_streams; i++) {
390 rtsp_st = rt->rtsp_streams[i];
c8965800
RB
391 if (rtsp_st->sdp_payload_type == payload_type &&
392 rtsp_st->dynamic_handler &&
393 rtsp_st->dynamic_handler->parse_sdp_a_line)
394 rtsp_st->dynamic_handler->parse_sdp_a_line(s, i,
395 rtsp_st->dynamic_protocol_context, buf);
d0deedcb 396 }
c8965800 397 } else if (av_strstart(p, "range:", &p)) {
31693e00
RM
398 int64_t start, end;
399
400 // this is so that seeking on a streamed file can work.
401 rtsp_parse_range_npt(p, &start, &end);
c8965800
RB
402 s->start_time = start;
403 /* AV_NOPTS_VALUE means live broadcast (and can't seek) */
404 s->duration = (end == AV_NOPTS_VALUE) ?
405 AV_NOPTS_VALUE : end - start;
119b4668
RB
406 } else if (av_strstart(p, "IsRealDataType:integer;",&p)) {
407 if (atoi(p) == 1)
408 rt->transport = RTSP_TRANSPORT_RDT;
bb776f3b
MS
409 } else if (av_strstart(p, "SampleRate:integer;", &p) &&
410 s->nb_streams > 0) {
411 st = s->streams[s->nb_streams - 1];
412 st->codec->sample_rate = atoi(p);
1a30d541
RB
413 } else {
414 if (rt->server_type == RTSP_SERVER_WMS)
415 ff_wms_parse_sdp_a_line(s, p);
416 if (s->nb_streams > 0) {
c4a3d032
RB
417 if (rt->server_type == RTSP_SERVER_REAL)
418 ff_real_parse_sdp_a_line(s, s->nb_streams - 1, p);
419
d9c0510e 420 rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
c4a3d032
RB
421 if (rtsp_st->dynamic_handler &&
422 rtsp_st->dynamic_handler->parse_sdp_a_line)
c8965800
RB
423 rtsp_st->dynamic_handler->parse_sdp_a_line(s,
424 s->nb_streams - 1,
c4a3d032 425 rtsp_st->dynamic_protocol_context, buf);
1a30d541 426 }
1617ad97
FB
427 }
428 break;
429 }
430}
431
0526c6f7 432int ff_sdp_parse(AVFormatContext *s, const char *content)
1617ad97 433{
a8475bbd 434 RTSPState *rt = s->priv_data;
1617ad97
FB
435 const char *p;
436 int letter;
9211bcdd
RB
437 /* Some SDP lines, particularly for Realmedia or ASF RTSP streams,
438 * contain long SDP lines containing complete ASF Headers (several
439 * kB) or arrays of MDPR (RM stream descriptor) headers plus
440 * "rulebooks" describing their properties. Therefore, the SDP line
373afbaf
RB
441 * buffer is large.
442 *
afcea58c
JA
443 * The Vorbis FMTP line can be up to 16KB - see xiph_parse_sdp_line
444 * in rtpdec_xiph.c. */
373afbaf 445 char buf[16384], *q;
93ced3e8 446 SDPParseState sdp_parse_state, *s1 = &sdp_parse_state;
115329f1 447
93ced3e8 448 memset(s1, 0, sizeof(SDPParseState));
1617ad97 449 p = content;
c8965800 450 for (;;) {
30619e6e 451 p += strspn(p, SPACE_CHARS);
1617ad97
FB
452 letter = *p;
453 if (letter == '\0')
454 break;
455 p++;
456 if (*p != '=')
457 goto next_line;
458 p++;
459 /* get the content */
460 q = buf;
b6892136 461 while (*p != '\n' && *p != '\r' && *p != '\0') {
1617ad97
FB
462 if ((q - buf) < sizeof(buf) - 1)
463 *q++ = *p;
464 p++;
465 }
466 *q = '\0';
93ced3e8 467 sdp_parse_line(s, s1, letter, buf);
1617ad97
FB
468 next_line:
469 while (*p != '\n' && *p != '\0')
470 p++;
471 if (*p == '\n')
472 p++;
473 }
a8475bbd
LB
474 rt->p = av_malloc(sizeof(struct pollfd)*2*(rt->nb_rtsp_streams+1));
475 if (!rt->p) return AVERROR(ENOMEM);
1617ad97
FB
476 return 0;
477}
44b70ce5 478#endif /* CONFIG_RTPDEC */
1617ad97 479
93e7490e
MS
480void ff_rtsp_undo_setup(AVFormatContext *s)
481{
482 RTSPState *rt = s->priv_data;
483 int i;
484
485 for (i = 0; i < rt->nb_rtsp_streams; i++) {
486 RTSPStream *rtsp_st = rt->rtsp_streams[i];
487 if (!rtsp_st)
488 continue;
489 if (rtsp_st->transport_priv) {
490 if (s->oformat) {
491 AVFormatContext *rtpctx = rtsp_st->transport_priv;
492 av_write_trailer(rtpctx);
493 if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
494 uint8_t *ptr;
6dc7d80d 495 avio_close_dyn_buf(rtpctx->pb, &ptr);
93e7490e
MS
496 av_free(ptr);
497 } else {
22a3212e 498 avio_close(rtpctx->pb);
93e7490e 499 }
b22dbb29 500 avformat_free_context(rtpctx);
93e7490e
MS
501 } else if (rt->transport == RTSP_TRANSPORT_RDT && CONFIG_RTPDEC)
502 ff_rdt_parse_close(rtsp_st->transport_priv);
503 else if (CONFIG_RTPDEC)
bfc6db44 504 ff_rtp_parse_close(rtsp_st->transport_priv);
93e7490e
MS
505 }
506 rtsp_st->transport_priv = NULL;
507 if (rtsp_st->rtp_handle)
e52a9145 508 ffurl_close(rtsp_st->rtp_handle);
93e7490e
MS
509 rtsp_st->rtp_handle = NULL;
510 }
511}
512
1ced9da3 513/* close and free RTSP streams */
3307e6ea 514void ff_rtsp_close_streams(AVFormatContext *s)
1ced9da3 515{
52aa4338 516 RTSPState *rt = s->priv_data;
1ced9da3
LA
517 int i;
518 RTSPStream *rtsp_st;
519
93e7490e 520 ff_rtsp_undo_setup(s);
c8965800 521 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1ced9da3
LA
522 rtsp_st = rt->rtsp_streams[i];
523 if (rtsp_st) {
1ced9da3 524 if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context)
9261e6cf 525 rtsp_st->dynamic_handler->free(
c8965800 526 rtsp_st->dynamic_protocol_context);
ea7f0807 527 av_free(rtsp_st);
1ced9da3
LA
528 }
529 }
530 av_free(rt->rtsp_streams);
531 if (rt->asf_ctx) {
532 av_close_input_stream (rt->asf_ctx);
533 rt->asf_ctx = NULL;
534 }
a8475bbd 535 av_free(rt->p);
96a7c975 536 av_free(rt->recvbuf);
1ced9da3
LA
537}
538
c8965800 539static int rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st)
1ced9da3
LA
540{
541 RTSPState *rt = s->priv_data;
542 AVStream *st = NULL;
543
544 /* open the RTP context */
545 if (rtsp_st->stream_index >= 0)
546 st = s->streams[rtsp_st->stream_index];
547 if (!st)
548 s->ctx_flags |= AVFMTCTX_NOHEADER;
549
44b70ce5 550 if (s->oformat && CONFIG_RTSP_MUXER) {
a493f80a
MS
551 rtsp_st->transport_priv = ff_rtp_chain_mux_open(s, st,
552 rtsp_st->rtp_handle,
553 RTSP_TCP_MAX_PACKET_SIZE);
c2bfd816 554 /* Ownership of rtp_handle is passed to the rtp mux context */
fd450a51 555 rtsp_st->rtp_handle = NULL;
44b70ce5 556 } else if (rt->transport == RTSP_TRANSPORT_RDT && CONFIG_RTPDEC)
1ced9da3
LA
557 rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index,
558 rtsp_st->dynamic_protocol_context,
559 rtsp_st->dynamic_handler);
44b70ce5 560 else if (CONFIG_RTPDEC)
bfc6db44 561 rtsp_st->transport_priv = ff_rtp_parse_open(s, st, rtsp_st->rtp_handle,
58ee0991
MS
562 rtsp_st->sdp_payload_type,
563 (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP || !s->max_delay)
564 ? 0 : RTP_REORDER_QUEUE_DEFAULT_SIZE);
1ced9da3
LA
565
566 if (!rtsp_st->transport_priv) {
567 return AVERROR(ENOMEM);
44b70ce5 568 } else if (rt->transport != RTSP_TRANSPORT_RDT && CONFIG_RTPDEC) {
c8965800 569 if (rtsp_st->dynamic_handler) {
bfc6db44
MS
570 ff_rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv,
571 rtsp_st->dynamic_protocol_context,
572 rtsp_st->dynamic_handler);
1ced9da3
LA
573 }
574 }
575
576 return 0;
577}
578
6f5a3d0a 579#if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
1617ad97
FB
580static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
581{
582 const char *p;
583 int v;
584
585 p = *pp;
30619e6e 586 p += strspn(p, SPACE_CHARS);
1617ad97
FB
587 v = strtol(p, (char **)&p, 10);
588 if (*p == '-') {
589 p++;
590 *min_ptr = v;
591 v = strtol(p, (char **)&p, 10);
592 *max_ptr = v;
593 } else {
594 *min_ptr = v;
595 *max_ptr = v;
596 }
597 *pp = p;
598}
599
600/* XXX: only one transport specification is parsed */
a9e534d5 601static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p)
1617ad97
FB
602{
603 char transport_protocol[16];
604 char profile[16];
605 char lower_transport[16];
606 char parameter[16];
607 RTSPTransportField *th;
608 char buf[256];
115329f1 609
1617ad97 610 reply->nb_transports = 0;
115329f1 611
c8965800 612 for (;;) {
30619e6e 613 p += strspn(p, SPACE_CHARS);
1617ad97
FB
614 if (*p == '\0')
615 break;
616
617 th = &reply->transports[reply->nb_transports];
618
115329f1 619 get_word_sep(transport_protocol, sizeof(transport_protocol),
1617ad97 620 "/", &p);
e1502118 621 if (!strcasecmp (transport_protocol, "rtp")) {
7ecc634e
LB
622 get_word_sep(profile, sizeof(profile), "/;,", &p);
623 lower_transport[0] = '\0';
624 /* rtp/avp/<protocol> */
625 if (*p == '/') {
7ecc634e
LB
626 get_word_sep(lower_transport, sizeof(lower_transport),
627 ";,", &p);
119b4668
RB
628 }
629 th->transport = RTSP_TRANSPORT_RTP;
630 } else if (!strcasecmp (transport_protocol, "x-pn-tng") ||
631 !strcasecmp (transport_protocol, "x-real-rdt")) {
7ecc634e 632 /* x-pn-tng/<protocol> */
e1502118
LB
633 get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p);
634 profile[0] = '\0';
119b4668 635 th->transport = RTSP_TRANSPORT_RDT;
1617ad97 636 }
b6892136 637 if (!strcasecmp(lower_transport, "TCP"))
90abbdba 638 th->lower_transport = RTSP_LOWER_TRANSPORT_TCP;
1617ad97 639 else
90abbdba 640 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP;
115329f1 641
1617ad97
FB
642 if (*p == ';')
643 p++;
644 /* get each parameter */
645 while (*p != '\0' && *p != ',') {
646 get_word_sep(parameter, sizeof(parameter), "=;,", &p);
647 if (!strcmp(parameter, "port")) {
648 if (*p == '=') {
649 p++;
650 rtsp_parse_range(&th->port_min, &th->port_max, &p);
651 }
652 } else if (!strcmp(parameter, "client_port")) {
653 if (*p == '=') {
654 p++;
115329f1 655 rtsp_parse_range(&th->client_port_min,
1617ad97
FB
656 &th->client_port_max, &p);
657 }
658 } else if (!strcmp(parameter, "server_port")) {
659 if (*p == '=') {
660 p++;
115329f1 661 rtsp_parse_range(&th->server_port_min,
1617ad97
FB
662 &th->server_port_max, &p);
663 }
664 } else if (!strcmp(parameter, "interleaved")) {
665 if (*p == '=') {
666 p++;
115329f1 667 rtsp_parse_range(&th->interleaved_min,
1617ad97
FB
668 &th->interleaved_max, &p);
669 }
670 } else if (!strcmp(parameter, "multicast")) {
90abbdba
RB
671 if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP)
672 th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST;
1617ad97
FB
673 } else if (!strcmp(parameter, "ttl")) {
674 if (*p == '=') {
675 p++;
676 th->ttl = strtol(p, (char **)&p, 10);
677 }
678 } else if (!strcmp(parameter, "destination")) {
1617ad97
FB
679 if (*p == '=') {
680 p++;
681 get_word_sep(buf, sizeof(buf), ";,", &p);
7934b15d 682 get_sockaddr(buf, &th->destination);
1617ad97 683 }
619298a8
JW
684 } else if (!strcmp(parameter, "source")) {
685 if (*p == '=') {
686 p++;
687 get_word_sep(buf, sizeof(buf), ";,", &p);
688 av_strlcpy(th->source, buf, sizeof(th->source));
689 }
1617ad97 690 }
619298a8 691
1617ad97
FB
692 while (*p != ';' && *p != '\0' && *p != ',')
693 p++;
694 if (*p == ';')
695 p++;
696 }
697 if (*p == ',')
698 p++;
699
700 reply->nb_transports++;
701 }
702}
703
29db7c3a
MS
704static void handle_rtp_info(RTSPState *rt, const char *url,
705 uint32_t seq, uint32_t rtptime)
706{
707 int i;
708 if (!rtptime || !url[0])
709 return;
710 if (rt->transport != RTSP_TRANSPORT_RTP)
711 return;
712 for (i = 0; i < rt->nb_rtsp_streams; i++) {
713 RTSPStream *rtsp_st = rt->rtsp_streams[i];
714 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
715 if (!rtpctx)
716 continue;
717 if (!strcmp(rtsp_st->control_url, url)) {
718 rtpctx->base_timestamp = rtptime;
719 break;
720 }
721 }
722}
723
724static void rtsp_parse_rtp_info(RTSPState *rt, const char *p)
725{
726 int read = 0;
727 char key[20], value[1024], url[1024] = "";
728 uint32_t seq = 0, rtptime = 0;
729
730 for (;;) {
731 p += strspn(p, SPACE_CHARS);
732 if (!*p)
733 break;
734 get_word_sep(key, sizeof(key), "=", &p);
735 if (*p != '=')
736 break;
737 p++;
738 get_word_sep(value, sizeof(value), ";, ", &p);
739 read++;
740 if (!strcmp(key, "url"))
741 av_strlcpy(url, value, sizeof(url));
742 else if (!strcmp(key, "seq"))
4515f9b5 743 seq = strtoul(value, NULL, 10);
29db7c3a 744 else if (!strcmp(key, "rtptime"))
4515f9b5 745 rtptime = strtoul(value, NULL, 10);
29db7c3a
MS
746 if (*p == ',') {
747 handle_rtp_info(rt, url, seq, rtptime);
748 url[0] = '\0';
749 seq = rtptime = 0;
750 read = 0;
751 }
752 if (*p)
753 p++;
754 }
755 if (read > 0)
756 handle_rtp_info(rt, url, seq, rtptime);
757}
758
2626308a 759void ff_rtsp_parse_line(RTSPMessageHeader *reply, const char *buf,
77223c53 760 RTSPState *rt, const char *method)
1617ad97
FB
761{
762 const char *p;
763
764 /* NOTE: we do case independent match for broken servers */
765 p = buf;
f7d78f36 766 if (av_stristart(p, "Session:", &p)) {
30e79845 767 int t;
1617ad97 768 get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
30e79845
RB
769 if (av_stristart(p, ";timeout=", &p) &&
770 (t = strtol(p, NULL, 10)) > 0) {
771 reply->timeout = t;
772 }
f7d78f36 773 } else if (av_stristart(p, "Content-Length:", &p)) {
1617ad97 774 reply->content_length = strtol(p, NULL, 10);
f7d78f36 775 } else if (av_stristart(p, "Transport:", &p)) {
1617ad97 776 rtsp_parse_transport(reply, p);
f7d78f36 777 } else if (av_stristart(p, "CSeq:", &p)) {
1617ad97 778 reply->seq = strtol(p, NULL, 10);
f7d78f36 779 } else if (av_stristart(p, "Range:", &p)) {
31693e00 780 rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end);
30aa6aed 781 } else if (av_stristart(p, "RealChallenge1:", &p)) {
30619e6e 782 p += strspn(p, SPACE_CHARS);
30aa6aed 783 av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge));
7a86bafa 784 } else if (av_stristart(p, "Server:", &p)) {
30619e6e 785 p += strspn(p, SPACE_CHARS);
7a86bafa 786 av_strlcpy(reply->server, p, sizeof(reply->server));
fccb1770
RB
787 } else if (av_stristart(p, "Notice:", &p) ||
788 av_stristart(p, "X-Notice:", &p)) {
789 reply->notice = strtol(p, NULL, 10);
d243ba30 790 } else if (av_stristart(p, "Location:", &p)) {
30619e6e 791 p += strspn(p, SPACE_CHARS);
d243ba30 792 av_strlcpy(reply->location, p , sizeof(reply->location));
acc9ed14 793 } else if (av_stristart(p, "WWW-Authenticate:", &p) && rt) {
30619e6e 794 p += strspn(p, SPACE_CHARS);
acc9ed14
MS
795 ff_http_auth_handle_header(&rt->auth_state, "WWW-Authenticate", p);
796 } else if (av_stristart(p, "Authentication-Info:", &p) && rt) {
30619e6e 797 p += strspn(p, SPACE_CHARS);
acc9ed14 798 ff_http_auth_handle_header(&rt->auth_state, "Authentication-Info", p);
d2995eb9 799 } else if (av_stristart(p, "Content-Base:", &p) && rt) {
dd22cfb1 800 p += strspn(p, SPACE_CHARS);
d2995eb9
MS
801 if (method && !strcmp(method, "DESCRIBE"))
802 av_strlcpy(rt->control_uri, p , sizeof(rt->control_uri));
29db7c3a
MS
803 } else if (av_stristart(p, "RTP-Info:", &p) && rt) {
804 p += strspn(p, SPACE_CHARS);
805 if (method && !strcmp(method, "PLAY"))
806 rtsp_parse_rtp_info(rt, p);
0b4949b5
MS
807 } else if (av_stristart(p, "Public:", &p) && rt) {
808 if (strstr(p, "GET_PARAMETER") &&
809 method && !strcmp(method, "OPTIONS"))
810 rt->get_parameter_supported = 1;
30eae325
MS
811 } else if (av_stristart(p, "x-Accept-Dynamic-Rate:", &p) && rt) {
812 p += strspn(p, SPACE_CHARS);
813 rt->accept_dynamic_rate = atoi(p);
1617ad97
FB
814 }
815}
816
b7b8fc34 817/* skip a RTP/TCP interleaved packet */
ec55edba 818void ff_rtsp_skip_packet(AVFormatContext *s)
b7b8fc34
FB
819{
820 RTSPState *rt = s->priv_data;
821 int ret, len, len1;
822 uint8_t buf[1024];
823
dce37564 824 ret = ffurl_read_complete(rt->rtsp_hd, buf, 3);
b7b8fc34
FB
825 if (ret != 3)
826 return;
80fb8234 827 len = AV_RB16(buf + 1);
67c9cd69 828
dfd2a005 829 av_dlog(s, "skipping RTP packet len=%d\n", len);
67c9cd69 830
b7b8fc34
FB
831 /* skip payload */
832 while (len > 0) {
833 len1 = len;
834 if (len1 > sizeof(buf))
835 len1 = sizeof(buf);
dce37564 836 ret = ffurl_read_complete(rt->rtsp_hd, buf, len1);
b7b8fc34
FB
837 if (ret != len1)
838 return;
839 len -= len1;
840 }
841}
1617ad97 842
3307e6ea 843int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply,
93993933 844 unsigned char **content_ptr,
3df54c6b 845 int return_on_interleaved_data, const char *method)
1617ad97
FB
846{
847 RTSPState *rt = s->priv_data;
848 char buf[4096], buf1[1024], *q;
849 unsigned char ch;
850 const char *p;
7e726132 851 int ret, content_length, line_count = 0;
1617ad97
FB
852 unsigned char *content = NULL;
853
d541a7d2 854 memset(reply, 0, sizeof(*reply));
1617ad97 855
1617ad97 856 /* parse reply (XXX: use buffers) */
1617ad97 857 rt->last_reply[0] = '\0';
c8965800 858 for (;;) {
1617ad97 859 q = buf;
c8965800 860 for (;;) {
dce37564 861 ret = ffurl_read_complete(rt->rtsp_hd, &ch, 1);
dfd2a005 862 av_dlog(s, "ret=%d c=%02x [%c]\n", ret, ch, ch);
7e726132 863 if (ret != 1)
2401660d 864 return AVERROR_EOF;
1617ad97
FB
865 if (ch == '\n')
866 break;
b7b8fc34
FB
867 if (ch == '$') {
868 /* XXX: only parse it if first char on line ? */
7e726132
RB
869 if (return_on_interleaved_data) {
870 return 1;
871 } else
ec55edba 872 ff_rtsp_skip_packet(s);
b7b8fc34 873 } else if (ch != '\r') {
1617ad97
FB
874 if ((q - buf) < sizeof(buf) - 1)
875 *q++ = ch;
876 }
877 }
878 *q = '\0';
67c9cd69 879
dfd2a005 880 av_dlog(s, "line='%s'\n", buf);
67c9cd69 881
1617ad97
FB
882 /* test if last line */
883 if (buf[0] == '\0')
884 break;
885 p = buf;
886 if (line_count == 0) {
887 /* get reply code */
888 get_word(buf1, sizeof(buf1), &p);
889 get_word(buf1, sizeof(buf1), &p);
890 reply->status_code = atoi(buf1);
d93fdcbf 891 av_strlcpy(reply->reason, p, sizeof(reply->reason));
1617ad97 892 } else {
77223c53 893 ff_rtsp_parse_line(reply, p, rt, method);
75e61b0e
MR
894 av_strlcat(rt->last_reply, p, sizeof(rt->last_reply));
895 av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply));
1617ad97
FB
896 }
897 line_count++;
898 }
115329f1 899
1617ad97 900 if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0')
75e61b0e 901 av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id));
115329f1 902
1617ad97
FB
903 content_length = reply->content_length;
904 if (content_length > 0) {
905 /* leave some room for a trailing '\0' (useful for simple parsing) */
906 content = av_malloc(content_length + 1);
dce37564 907 ffurl_read_complete(rt->rtsp_hd, content, content_length);
1617ad97
FB
908 content[content_length] = '\0';
909 }
910 if (content_ptr)
911 *content_ptr = content;
e2e2e7dd
AB
912 else
913 av_free(content);
7e726132 914
7ed8211b
LB
915 if (rt->seq != reply->seq) {
916 av_log(s, AV_LOG_WARNING, "CSeq %d expected, %d received.\n",
917 rt->seq, reply->seq);
918 }
919
fccb1770
RB
920 /* EOS */
921 if (reply->notice == 2101 /* End-of-Stream Reached */ ||
922 reply->notice == 2104 /* Start-of-Stream Reached */ ||
c8965800 923 reply->notice == 2306 /* Continuous Feed Terminated */) {
fccb1770 924 rt->state = RTSP_STATE_IDLE;
c8965800 925 } else if (reply->notice >= 4400 && reply->notice < 5500) {
fccb1770 926 return AVERROR(EIO); /* data or server error */
c8965800 927 } else if (reply->notice == 2401 /* Ticket Expired */ ||
fccb1770
RB
928 (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ )
929 return AVERROR(EPERM);
930
7e726132 931 return 0;
1617ad97
FB
932}
933
57c4d01e
DEP
934/**
935 * Send a command to the RTSP server without waiting for the reply.
936 *
937 * @param s RTSP (de)muxer context
938 * @param method the method for the request
939 * @param url the target url for the request
940 * @param headers extra header lines to include in the request
941 * @param send_content if non-null, the data to send as request body content
942 * @param send_content_length the length of the send_content data, or 0 if
943 * send_content is null
944 *
945 * @return zero if success, nonzero otherwise
946 */
947static int ff_rtsp_send_cmd_with_content_async(AVFormatContext *s,
948 const char *method, const char *url,
949 const char *headers,
950 const unsigned char *send_content,
951 int send_content_length)
29b9f58b
RB
952{
953 RTSPState *rt = s->priv_data;
f5d33f52
JA
954 char buf[4096], *out_buf;
955 char base64buf[AV_BASE64_SIZE(sizeof(buf))];
29b9f58b 956
f5d33f52
JA
957 /* Add in RTSP headers */
958 out_buf = buf;
29b9f58b 959 rt->seq++;
b17d11c6
MS
960 snprintf(buf, sizeof(buf), "%s %s RTSP/1.0\r\n", method, url);
961 if (headers)
962 av_strlcat(buf, headers, sizeof(buf));
7b4a3645 963 av_strlcatf(buf, sizeof(buf), "CSeq: %d\r\n", rt->seq);
b17d11c6
MS
964 if (rt->session_id[0] != '\0' && (!headers ||
965 !strstr(headers, "\nIf-Match:"))) {
7b4a3645 966 av_strlcatf(buf, sizeof(buf), "Session: %s\r\n", rt->session_id);
29b9f58b 967 }
aa8bf2fb
MS
968 if (rt->auth[0]) {
969 char *str = ff_http_auth_create_response(&rt->auth_state,
970 rt->auth, url, method);
971 if (str)
972 av_strlcat(buf, str, sizeof(buf));
973 av_free(str);
974 }
dfd017bf
MS
975 if (send_content_length > 0 && send_content)
976 av_strlcatf(buf, sizeof(buf), "Content-Length: %d\r\n", send_content_length);
29b9f58b 977 av_strlcat(buf, "\r\n", sizeof(buf));
67c9cd69 978
f5d33f52
JA
979 /* base64 encode rtsp if tunneling */
980 if (rt->control_transport == RTSP_MODE_TUNNEL) {
981 av_base64_encode(base64buf, sizeof(base64buf), buf, strlen(buf));
982 out_buf = base64buf;
983 }
984
dfd2a005 985 av_dlog(s, "Sending:\n%s--\n", buf);
67c9cd69 986
925e908b 987 ffurl_write(rt->rtsp_hd_out, out_buf, strlen(out_buf));
f5d33f52
JA
988 if (send_content_length > 0 && send_content) {
989 if (rt->control_transport == RTSP_MODE_TUNNEL) {
990 av_log(s, AV_LOG_ERROR, "tunneling of RTSP requests "
991 "with content data not supported\n");
992 return AVERROR_PATCHWELCOME;
993 }
925e908b 994 ffurl_write(rt->rtsp_hd_out, send_content, send_content_length);
f5d33f52 995 }
30e79845 996 rt->last_cmd_time = av_gettime();
d0382374
JA
997
998 return 0;
30e79845
RB
999}
1000
d0382374 1001int ff_rtsp_send_cmd_async(AVFormatContext *s, const char *method,
fc490fcf 1002 const char *url, const char *headers)
dfd017bf 1003{
d0382374 1004 return ff_rtsp_send_cmd_with_content_async(s, method, url, headers, NULL, 0);
dfd017bf
MS
1005}
1006
d0382374 1007int ff_rtsp_send_cmd(AVFormatContext *s, const char *method, const char *url,
fc490fcf
MS
1008 const char *headers, RTSPMessageHeader *reply,
1009 unsigned char **content_ptr)
30e79845 1010{
d0382374 1011 return ff_rtsp_send_cmd_with_content(s, method, url, headers, reply,
fc490fcf 1012 content_ptr, NULL, 0);
29b9f58b
RB
1013}
1014
d0382374 1015int ff_rtsp_send_cmd_with_content(AVFormatContext *s,
fc490fcf
MS
1016 const char *method, const char *url,
1017 const char *header,
1018 RTSPMessageHeader *reply,
1019 unsigned char **content_ptr,
1020 const unsigned char *send_content,
1021 int send_content_length)
dfd017bf 1022{
30af0779
MS
1023 RTSPState *rt = s->priv_data;
1024 HTTPAuthType cur_auth_type;
d0382374 1025 int ret;
30af0779
MS
1026
1027retry:
1028 cur_auth_type = rt->auth_state.auth_type;
d0382374 1029 if ((ret = ff_rtsp_send_cmd_with_content_async(s, method, url, header,
fc490fcf
MS
1030 send_content,
1031 send_content_length)))
d0382374 1032 return ret;
dfd017bf 1033
3df54c6b 1034 if ((ret = ff_rtsp_read_reply(s, reply, content_ptr, 0, method) ) < 0)
d0382374 1035 return ret;
30af0779
MS
1036
1037 if (reply->status_code == 401 && cur_auth_type == HTTP_AUTH_NONE &&
1038 rt->auth_state.auth_type != HTTP_AUTH_NONE)
1039 goto retry;
d0382374 1040
bf55cf19 1041 if (reply->status_code > 400){
d93fdcbf 1042 av_log(s, AV_LOG_ERROR, "method %s failed: %d%s\n",
bf55cf19 1043 method,
d93fdcbf
LB
1044 reply->status_code,
1045 reply->reason);
bf55cf19
LB
1046 av_log(s, AV_LOG_DEBUG, "%s\n", rt->last_reply);
1047 }
1048
d0382374 1049 return 0;
dfd017bf
MS
1050}
1051
fef5649a 1052int ff_rtsp_make_setup_request(AVFormatContext *s, const char *host, int port,
c8965800 1053 int lower_transport, const char *real_challenge)
1617ad97
FB
1054{
1055 RTSPState *rt = s->priv_data;
f830c9a4 1056 int rtx, j, i, err, interleave = 0;
1617ad97 1057 RTSPStream *rtsp_st;
a9e534d5 1058 RTSPMessageHeader reply1, *reply = &reply1;
53620bba 1059 char cmd[2048];
e9dea59f
RB
1060 const char *trans_pref;
1061
119b4668 1062 if (rt->transport == RTSP_TRANSPORT_RDT)
e9dea59f
RB
1063 trans_pref = "x-pn-tng";
1064 else
1065 trans_pref = "RTP/AVP";
115329f1 1066
30e79845
RB
1067 /* default timeout: 1 minute */
1068 rt->timeout = 60;
1069
1617ad97
FB
1070 /* for each stream, make the setup request */
1071 /* XXX: we assume the same server is used for the control of each
c8965800 1072 * RTSP stream */
d1ccf0e0 1073
c8965800 1074 for (j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) {
1617ad97
FB
1075 char transport[2048];
1076
f75e3da5 1077 /*
f830c9a4
RB
1078 * WMS serves all UDP data over a single connection, the RTX, which
1079 * isn't necessarily the first in the SDP but has to be the first
1080 * to be set up, else the second/third SETUP will fail with a 461.
1081 */
1082 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
1083 rt->server_type == RTSP_SERVER_WMS) {
1084 if (i == 0) {
1085 /* rtx first */
1086 for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) {
1087 int len = strlen(rt->rtsp_streams[rtx]->control_url);
1088 if (len >= 4 &&
c8965800
RB
1089 !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4,
1090 "/rtx"))
f830c9a4
RB
1091 break;
1092 }
1093 if (rtx == rt->nb_rtsp_streams)
1094 return -1; /* no RTX found */
1095 rtsp_st = rt->rtsp_streams[rtx];
1096 } else
1097 rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1];
1098 } else
2fea9650 1099 rtsp_st = rt->rtsp_streams[i];
1617ad97 1100
1617ad97 1101 /* RTP/UDP */
90abbdba 1102 if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) {
85fb7b34 1103 char buf[256];
85fb7b34 1104
f830c9a4
RB
1105 if (rt->server_type == RTSP_SERVER_WMS && i > 1) {
1106 port = reply->transports[0].client_port_min;
1107 goto have_port;
1108 }
1109
85fb7b34 1110 /* first try in specified port range */
d1ccf0e0 1111 if (RTSP_RTP_PORT_MIN != 0) {
c8965800 1112 while (j <= RTSP_RTP_PORT_MAX) {
57b5555c
MS
1113 ff_url_join(buf, sizeof(buf), "rtp", NULL, host, -1,
1114 "?localport=%d", j);
c8965800
RB
1115 /* we will use two ports per rtp stream (rtp and rtcp) */
1116 j += 2;
59d96941 1117 if (ffurl_open(&rtsp_st->rtp_handle, buf, AVIO_FLAG_READ_WRITE) == 0)
85fb7b34
FB
1118 goto rtp_opened;
1119 }
1617ad97 1120 }
85fb7b34 1121
a3b058b7
MS
1122 av_log(s, AV_LOG_ERROR, "Unable to open an input RTP port\n");
1123 err = AVERROR(EIO);
1124 goto fail;
85fb7b34
FB
1125
1126 rtp_opened:
bfc6db44 1127 port = ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle);
f830c9a4 1128 have_port:
0ad306bc 1129 snprintf(transport, sizeof(transport) - 1,
eee2cbff
RB
1130 "%s/UDP;", trans_pref);
1131 if (rt->server_type != RTSP_SERVER_REAL)
1132 av_strlcat(transport, "unicast;", sizeof(transport));
1133 av_strlcatf(transport, sizeof(transport),
1134 "client_port=%d", port);
f830c9a4
RB
1135 if (rt->transport == RTSP_TRANSPORT_RTP &&
1136 !(rt->server_type == RTSP_SERVER_WMS && i > 0))
e9dea59f 1137 av_strlcatf(transport, sizeof(transport), "-%d", port + 1);
1617ad97
FB
1138 }
1139
1140 /* RTP/TCP */
90abbdba 1141 else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
f75e3da5 1142 /* For WMS streams, the application streams are only used for
090438cc
RB
1143 * UDP. When trying to set it up for TCP streams, the server
1144 * will return an error. Therefore, we skip those streams. */
1145 if (rt->server_type == RTSP_SERVER_WMS &&
c8965800 1146 s->streams[rtsp_st->stream_index]->codec->codec_type ==
72415b2a 1147 AVMEDIA_TYPE_DATA)
090438cc 1148 continue;
0ad306bc 1149 snprintf(transport, sizeof(transport) - 1,
d1c6e47c 1150 "%s/TCP;", trans_pref);
895678f8 1151 if (rt->transport != RTSP_TRANSPORT_RDT)
d1c6e47c
RB
1152 av_strlcat(transport, "unicast;", sizeof(transport));
1153 av_strlcatf(transport, sizeof(transport),
1154 "interleaved=%d-%d",
1155 interleave, interleave + 1);
1156 interleave += 2;
1617ad97
FB
1157 }
1158
90abbdba 1159 else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) {
0ad306bc 1160 snprintf(transport, sizeof(transport) - 1,
e9dea59f 1161 "%s/UDP;multicast", trans_pref);
1617ad97 1162 }
69adcc4f
MS
1163 if (s->oformat) {
1164 av_strlcat(transport, ";mode=receive", sizeof(transport));
1165 } else if (rt->server_type == RTSP_SERVER_REAL ||
2efc97c2 1166 rt->server_type == RTSP_SERVER_WMS)
e9dea59f 1167 av_strlcat(transport, ";mode=play", sizeof(transport));
115329f1 1168 snprintf(cmd, sizeof(cmd),
b6892136 1169 "Transport: %s\r\n",
b17d11c6 1170 transport);
76b0d03d
MS
1171 if (rt->accept_dynamic_rate)
1172 av_strlcat(cmd, "x-Dynamic-Rate: 0\r\n", sizeof(cmd));
44b70ce5 1173 if (i == 0 && rt->server_type == RTSP_SERVER_REAL && CONFIG_RTPDEC) {
e9dea59f
RB
1174 char real_res[41], real_csum[9];
1175 ff_rdt_calc_response_and_checksum(real_res, real_csum,
1176 real_challenge);
1177 av_strlcatf(cmd, sizeof(cmd),
1178 "If-Match: %s\r\n"
1179 "RealChallenge2: %s, sd=%s\r\n",
1180 rt->session_id, real_res, real_csum);
1181 }
b17d11c6 1182 ff_rtsp_send_cmd(s, "SETUP", rtsp_st->control_url, cmd, reply, NULL);
8a8754d8
RB
1183 if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) {
1184 err = 1;
1185 goto fail;
7e6ca34f
RB
1186 } else if (reply->status_code != RTSP_STATUS_OK ||
1187 reply->nb_transports != 1) {
1617ad97
FB
1188 err = AVERROR_INVALIDDATA;
1189 goto fail;
1190 }
1191
1192 /* XXX: same protocol for all streams is required */
1193 if (i > 0) {
119b4668
RB
1194 if (reply->transports[0].lower_transport != rt->lower_transport ||
1195 reply->transports[0].transport != rt->transport) {
1617ad97
FB
1196 err = AVERROR_INVALIDDATA;
1197 goto fail;
1198 }
1199 } else {
90abbdba 1200 rt->lower_transport = reply->transports[0].lower_transport;
119b4668 1201 rt->transport = reply->transports[0].transport;
1617ad97
FB
1202 }
1203
8c579c1c
MS
1204 /* Fail if the server responded with another lower transport mode
1205 * than what we requested. */
1206 if (reply->transports[0].lower_transport != lower_transport) {
1207 av_log(s, AV_LOG_ERROR, "Nonmatching transport in server reply\n");
1208 err = AVERROR_INVALIDDATA;
1209 goto fail;
1617ad97
FB
1210 }
1211
90abbdba
RB
1212 switch(reply->transports[0].lower_transport) {
1213 case RTSP_LOWER_TRANSPORT_TCP:
1617ad97
FB
1214 rtsp_st->interleaved_min = reply->transports[0].interleaved_min;
1215 rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
1216 break;
115329f1 1217
c8965800 1218 case RTSP_LOWER_TRANSPORT_UDP: {
a92c30d7 1219 char url[1024], options[30] = "";
c8965800 1220
a92c30d7
MS
1221 if (rt->filter_source)
1222 av_strlcpy(options, "?connect=1", sizeof(options));
619298a8
JW
1223 /* Use source address if specified */
1224 if (reply->transports[0].source[0]) {
1225 ff_url_join(url, sizeof(url), "rtp", NULL,
1226 reply->transports[0].source,
d8407339 1227 reply->transports[0].server_port_min, "%s", options);
619298a8 1228 } else {
7bac991f 1229 ff_url_join(url, sizeof(url), "rtp", NULL, host,
d8407339 1230 reply->transports[0].server_port_min, "%s", options);
619298a8 1231 }
c8965800 1232 if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) &&
bfc6db44 1233 ff_rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
c8965800
RB
1234 err = AVERROR_INVALIDDATA;
1235 goto fail;
1617ad97 1236 }
9c8fa20d
MS
1237 /* Try to initialize the connection state in a
1238 * potential NAT router by sending dummy packets.
1239 * RTP/RTCP dummy packets are used for RDT, too.
1240 */
44b70ce5
MS
1241 if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && s->iformat &&
1242 CONFIG_RTPDEC)
bfc6db44 1243 ff_rtp_send_punch_packets(rtsp_st->rtp_handle);
1617ad97 1244 break;
c8965800
RB
1245 }
1246 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: {
7934b15d
MS
1247 char url[1024], namebuf[50];
1248 struct sockaddr_storage addr;
c8965800
RB
1249 int port, ttl;
1250
7934b15d
MS
1251 if (reply->transports[0].destination.ss_family) {
1252 addr = reply->transports[0].destination;
c8965800
RB
1253 port = reply->transports[0].port_min;
1254 ttl = reply->transports[0].ttl;
1255 } else {
7934b15d 1256 addr = rtsp_st->sdp_ip;
c8965800
RB
1257 port = rtsp_st->sdp_port;
1258 ttl = rtsp_st->sdp_ttl;
1259 }
7934b15d
MS
1260 getnameinfo((struct sockaddr*) &addr, sizeof(addr),
1261 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
1262 ff_url_join(url, sizeof(url), "rtp", NULL, namebuf,
57b5555c 1263 port, "?ttl=%d", ttl);
59d96941 1264 if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE) < 0) {
c8965800
RB
1265 err = AVERROR_INVALIDDATA;
1266 goto fail;
1617ad97
FB
1267 }
1268 break;
1269 }
c8965800 1270 }
d1ccf0e0 1271
ee0cb67f 1272 if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
8b1ab7bf 1273 goto fail;
1617ad97
FB
1274 }
1275
30e79845
RB
1276 if (reply->timeout > 0)
1277 rt->timeout = reply->timeout;
1278
2e889ae4 1279 if (rt->server_type == RTSP_SERVER_REAL)
1256d16b
RB
1280 rt->need_subscription = 1;
1281
53620bba
RB
1282 return 0;
1283
1284fail:
aeb2de1c 1285 ff_rtsp_undo_setup(s);
53620bba
RB
1286 return err;
1287}
1288
b8c2c41d
JA
1289void ff_rtsp_close_connections(AVFormatContext *s)
1290{
1291 RTSPState *rt = s->priv_data;
e52a9145
AK
1292 if (rt->rtsp_hd_out != rt->rtsp_hd) ffurl_close(rt->rtsp_hd_out);
1293 ffurl_close(rt->rtsp_hd);
6217b645 1294 rt->rtsp_hd = rt->rtsp_hd_out = NULL;
b8c2c41d
JA
1295}
1296
3307e6ea 1297int ff_rtsp_connect(AVFormatContext *s)
53620bba
RB
1298{
1299 RTSPState *rt = s->priv_data;
921da217
LB
1300 char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128];
1301 char *option_list, *option, *filename;
03f8fc08 1302 int port, err, tcp_fd;
354b7573 1303 RTSPMessageHeader reply1 = {0}, *reply = &reply1;
90abbdba 1304 int lower_transport_mask = 0;
2762a7a2 1305 char real_challenge[64] = "";
03f8fc08
MS
1306 struct sockaddr_storage peer;
1307 socklen_t peer_len = sizeof(peer);
57b5555c
MS
1308
1309 if (!ff_network_init())
1310 return AVERROR(EIO);
c8965800 1311redirect:
f5d33f52 1312 rt->control_transport = RTSP_MODE_PLAIN;
53620bba 1313 /* extract hostname and port */
f3bfe388 1314 av_url_split(NULL, 0, auth, sizeof(auth),
f984dcf6 1315 host, sizeof(host), &port, path, sizeof(path), s->filename);
f9337897 1316 if (*auth) {
aa8bf2fb 1317 av_strlcpy(rt->auth, auth, sizeof(rt->auth));
f9337897 1318 }
53620bba
RB
1319 if (port < 0)
1320 port = RTSP_DEFAULT_PORT;
1321
1322 /* search for options */
602eb779 1323 option_list = strrchr(path, '?');
53620bba 1324 if (option_list) {
2a21adf9
MS
1325 /* Strip out the RTSP specific options, write out the rest of
1326 * the options back into the same string. */
1327 filename = option_list;
c8965800 1328 while (option_list) {
53620bba 1329 /* move the option pointer */
921da217 1330 option = ++option_list;
53620bba
RB
1331 option_list = strchr(option_list, '&');
1332 if (option_list)
921da217
LB
1333 *option_list = 0;
1334
53620bba 1335 /* handle the options */
c8965800 1336 if (!strcmp(option, "udp")) {
7a033e08 1337 lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_UDP);
c8965800 1338 } else if (!strcmp(option, "multicast")) {
7a033e08 1339 lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
c8965800 1340 } else if (!strcmp(option, "tcp")) {
7a033e08 1341 lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_TCP);
f5d33f52
JA
1342 } else if(!strcmp(option, "http")) {
1343 lower_transport_mask |= (1<< RTSP_LOWER_TRANSPORT_TCP);
1344 rt->control_transport = RTSP_MODE_TUNNEL;
a92c30d7
MS
1345 } else if (!strcmp(option, "filter_src")) {
1346 rt->filter_source = 1;
c8965800 1347 } else {
2a21adf9
MS
1348 /* Write options back into the buffer, using memmove instead
1349 * of strcpy since the strings may overlap. */
1350 int len = strlen(option);
1351 memmove(++filename, option, len);
1352 filename += len;
921da217
LB
1353 if (option_list) *filename = '&';
1354 }
53620bba 1355 }
921da217 1356 *filename = 0;
53620bba
RB
1357 }
1358
90abbdba 1359 if (!lower_transport_mask)
2a1d51c5 1360 lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1;
53620bba 1361
3e24c770 1362 if (s->oformat) {
b7dc88fc
MS
1363 /* Only UDP or TCP - UDP multicast isn't supported. */
1364 lower_transport_mask &= (1 << RTSP_LOWER_TRANSPORT_UDP) |
1365 (1 << RTSP_LOWER_TRANSPORT_TCP);
f5d33f52 1366 if (!lower_transport_mask || rt->control_transport == RTSP_MODE_TUNNEL) {
3e24c770 1367 av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, "
b7dc88fc 1368 "only UDP and TCP are supported for output.\n");
3e24c770
MS
1369 err = AVERROR(EINVAL);
1370 goto fail;
1371 }
1372 }
1373
4bc5cc23
MS
1374 /* Construct the URI used in request; this is similar to s->filename,
1375 * but with authentication credentials removed and RTSP specific options
1376 * stripped out. */
1377 ff_url_join(rt->control_uri, sizeof(rt->control_uri), "rtsp", NULL,
1378 host, port, "%s", path);
1379
f5d33f52
JA
1380 if (rt->control_transport == RTSP_MODE_TUNNEL) {
1381 /* set up initial handshake for tunneling */
1382 char httpname[1024];
1383 char sessioncookie[17];
1384 char headers[1024];
1385
10ed37b5 1386 ff_url_join(httpname, sizeof(httpname), "http", auth, host, port, "%s", path);
f5d33f52
JA
1387 snprintf(sessioncookie, sizeof(sessioncookie), "%08x%08x",
1388 av_get_random_seed(), av_get_random_seed());
1389
1390 /* GET requests */
59d96941 1391 if (ffurl_alloc(&rt->rtsp_hd, httpname, AVIO_FLAG_READ) < 0) {
f5d33f52
JA
1392 err = AVERROR(EIO);
1393 goto fail;
1394 }
1395
1396 /* generate GET headers */
1397 snprintf(headers, sizeof(headers),
1398 "x-sessioncookie: %s\r\n"
1399 "Accept: application/x-rtsp-tunnelled\r\n"
1400 "Pragma: no-cache\r\n"
1401 "Cache-Control: no-cache\r\n",
1402 sessioncookie);
00e4a1f4 1403 ff_http_set_headers(rt->rtsp_hd, headers);
f5d33f52
JA
1404
1405 /* complete the connection */
62eaaeac 1406 if (ffurl_connect(rt->rtsp_hd)) {
f5d33f52
JA
1407 err = AVERROR(EIO);
1408 goto fail;
1409 }
1410
1411 /* POST requests */
59d96941 1412 if (ffurl_alloc(&rt->rtsp_hd_out, httpname, AVIO_FLAG_WRITE) < 0 ) {
f5d33f52
JA
1413 err = AVERROR(EIO);
1414 goto fail;
1415 }
1416
1417 /* generate POST headers */
1418 snprintf(headers, sizeof(headers),
1419 "x-sessioncookie: %s\r\n"
1420 "Content-Type: application/x-rtsp-tunnelled\r\n"
1421 "Pragma: no-cache\r\n"
1422 "Cache-Control: no-cache\r\n"
1423 "Content-Length: 32767\r\n"
1424 "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
1425 sessioncookie);
00e4a1f4
JA
1426 ff_http_set_headers(rt->rtsp_hd_out, headers);
1427 ff_http_set_chunked_transfer_encoding(rt->rtsp_hd_out, 0);
f5d33f52 1428
a8ead332
MS
1429 /* Initialize the authentication state for the POST session. The HTTP
1430 * protocol implementation doesn't properly handle multi-pass
1431 * authentication for POST requests, since it would require one of
1432 * the following:
1433 * - implementing Expect: 100-continue, which many HTTP servers
1434 * don't support anyway, even less the RTSP servers that do HTTP
1435 * tunneling
1436 * - sending the whole POST data until getting a 401 reply specifying
1437 * what authentication method to use, then resending all that data
1438 * - waiting for potential 401 replies directly after sending the
1439 * POST header (waiting for some unspecified time)
1440 * Therefore, we copy the full auth state, which works for both basic
1441 * and digest. (For digest, we would have to synchronize the nonce
1442 * count variable between the two sessions, if we'd do more requests
1443 * with the original session, though.)
1444 */
1445 ff_http_init_auth_state(rt->rtsp_hd_out, rt->rtsp_hd);
1446
9290f15d 1447 /* complete the connection */
62eaaeac 1448 if (ffurl_connect(rt->rtsp_hd_out)) {
9290f15d
MS
1449 err = AVERROR(EIO);
1450 goto fail;
1451 }
f5d33f52 1452 } else {
48e77473 1453 /* open the tcp connection */
41874d0a 1454 ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, host, port, NULL);
59d96941 1455 if (ffurl_open(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE) < 0) {
41874d0a
JA
1456 err = AVERROR(EIO);
1457 goto fail;
1458 }
00e4a1f4 1459 rt->rtsp_hd_out = rt->rtsp_hd;
f5d33f52 1460 }
53620bba
RB
1461 rt->seq = 0;
1462
1869ea03 1463 tcp_fd = ffurl_get_file_handle(rt->rtsp_hd);
03f8fc08
MS
1464 if (!getpeername(tcp_fd, (struct sockaddr*) &peer, &peer_len)) {
1465 getnameinfo((struct sockaddr*) &peer, peer_len, host, sizeof(host),
1466 NULL, 0, NI_NUMERICHOST);
1467 }
1468
c8965800
RB
1469 /* request options supported by the server; this also detects server
1470 * type */
1cf151e9 1471 for (rt->server_type = RTSP_SERVER_RTP;;) {
b17d11c6 1472 cmd[0] = 0;
2e889ae4 1473 if (rt->server_type == RTSP_SERVER_REAL)
1cf151e9 1474 av_strlcat(cmd,
f75e3da5 1475 /*
1cf151e9
RB
1476 * The following entries are required for proper
1477 * streaming from a Realmedia server. They are
1478 * interdependent in some way although we currently
1479 * don't quite understand how. Values were copied
1480 * from mplayer SVN r23589.
f75e3da5
DB
1481 * ClientChallenge is a 16-byte ID in hex
1482 * CompanyID is a 16-byte ID in base64
1cf151e9
RB
1483 */
1484 "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
1485 "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
1486 "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
1487 "GUID: 00000000-0000-0000-0000-000000000000\r\n",
1488 sizeof(cmd));
b17d11c6 1489 ff_rtsp_send_cmd(s, "OPTIONS", rt->control_uri, cmd, reply, NULL);
1cf151e9
RB
1490 if (reply->status_code != RTSP_STATUS_OK) {
1491 err = AVERROR_INVALIDDATA;
1492 goto fail;
1493 }
1494
1495 /* detect server type if not standard-compliant RTP */
2e889ae4
RB
1496 if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) {
1497 rt->server_type = RTSP_SERVER_REAL;
1cf151e9 1498 continue;
7a86bafa
RB
1499 } else if (!strncasecmp(reply->server, "WMServer/", 9)) {
1500 rt->server_type = RTSP_SERVER_WMS;
c8965800 1501 } else if (rt->server_type == RTSP_SERVER_REAL)
1cf151e9 1502 strcpy(real_challenge, reply->real_challenge);
1cf151e9
RB
1503 break;
1504 }
1505
44b70ce5 1506 if (s->iformat && CONFIG_RTSP_DEMUXER)
0526c6f7 1507 err = ff_rtsp_setup_input_streams(s, reply);
44b70ce5 1508 else if (CONFIG_RTSP_MUXER)
c2688f3a 1509 err = ff_rtsp_setup_output_streams(s, host);
e23d195d 1510 if (err)
53620bba 1511 goto fail;
53620bba 1512
8a8754d8 1513 do {
c8965800
RB
1514 int lower_transport = ff_log2_tab[lower_transport_mask &
1515 ~(lower_transport_mask - 1)];
8a8754d8 1516
fef5649a 1517 err = ff_rtsp_make_setup_request(s, host, port, lower_transport,
2e889ae4 1518 rt->server_type == RTSP_SERVER_REAL ?
e9dea59f 1519 real_challenge : NULL);
8a8754d8 1520 if (err < 0)
7e6ca34f 1521 goto fail;
90abbdba
RB
1522 lower_transport_mask &= ~(1 << lower_transport);
1523 if (lower_transport_mask == 0 && err == 1) {
28c4741a 1524 err = AVERROR(EPROTONOSUPPORT);
8a8754d8
RB
1525 goto fail;
1526 }
1527 } while (err);
53620bba 1528
2762a7a2
MS
1529 rt->lower_transport_mask = lower_transport_mask;
1530 av_strlcpy(rt->real_challenge, real_challenge, sizeof(rt->real_challenge));
ff762d6e 1531 rt->state = RTSP_STATE_IDLE;
c8965800 1532 rt->seek_timestamp = 0; /* default is to start stream at position zero */
1617ad97
FB
1533 return 0;
1534 fail:
3307e6ea 1535 ff_rtsp_close_streams(s);
b8c2c41d 1536 ff_rtsp_close_connections(s);
35cfd646 1537 if (reply->status_code >=300 && reply->status_code < 400 && s->iformat) {
d243ba30
LB
1538 av_strlcpy(s->filename, reply->location, sizeof(s->filename));
1539 av_log(s, AV_LOG_INFO, "Status %d: Redirecting to %s\n",
1540 reply->status_code,
1541 s->filename);
1542 goto redirect;
1543 }
57b5555c 1544 ff_network_close();
1617ad97
FB
1545 return err;
1546}
2e802e38 1547#endif /* CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER */
1617ad97 1548
44b70ce5 1549#if CONFIG_RTPDEC
0e59034e 1550static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
321259c1 1551 uint8_t *buf, int buf_size, int64_t wait_end)
0e59034e
RB
1552{
1553 RTSPState *rt = s->priv_data;
1554 RTSPStream *rtsp_st;
a8475bbd
LB
1555 int n, i, ret, tcp_fd, timeout_cnt = 0;
1556 int max_p = 0;
1557 struct pollfd *p = rt->p;
0e59034e 1558
c8965800 1559 for (;;) {
0e59034e 1560 if (url_interrupt_cb())
c76374c6 1561 return AVERROR_EXIT;
321259c1
MS
1562 if (wait_end && wait_end - av_gettime() < 0)
1563 return AVERROR(EAGAIN);
a8475bbd 1564 max_p = 0;
0e59034e 1565 if (rt->rtsp_hd) {
1869ea03 1566 tcp_fd = ffurl_get_file_handle(rt->rtsp_hd);
a8475bbd
LB
1567 p[max_p].fd = tcp_fd;
1568 p[max_p++].events = POLLIN;
0e59034e 1569 } else {
0e59034e
RB
1570 tcp_fd = -1;
1571 }
c8965800 1572 for (i = 0; i < rt->nb_rtsp_streams; i++) {
0e59034e
RB
1573 rtsp_st = rt->rtsp_streams[i];
1574 if (rtsp_st->rtp_handle) {
1869ea03 1575 p[max_p].fd = ffurl_get_file_handle(rtsp_st->rtp_handle);
a8475bbd 1576 p[max_p++].events = POLLIN;
bfc6db44 1577 p[max_p].fd = ff_rtp_get_rtcp_file_handle(rtsp_st->rtp_handle);
a8475bbd 1578 p[max_p++].events = POLLIN;
0e59034e
RB
1579 }
1580 }
a8475bbd 1581 n = poll(p, max_p, POLL_TIMEOUT_MS);
0e59034e 1582 if (n > 0) {
a8475bbd 1583 int j = 1 - (tcp_fd == -1);
9cba6f5f 1584 timeout_cnt = 0;
c8965800 1585 for (i = 0; i < rt->nb_rtsp_streams; i++) {
0e59034e
RB
1586 rtsp_st = rt->rtsp_streams[i];
1587 if (rtsp_st->rtp_handle) {
a8475bbd 1588 if (p[j].revents & POLLIN || p[j+1].revents & POLLIN) {
bc371aca 1589 ret = ffurl_read(rtsp_st->rtp_handle, buf, buf_size);
0e59034e
RB
1590 if (ret > 0) {
1591 *prtsp_st = rtsp_st;
1592 return ret;
1593 }
1594 }
a8475bbd 1595 j+=2;
0e59034e
RB
1596 }
1597 }
5fe8021a 1598#if CONFIG_RTSP_DEMUXER
a8475bbd 1599 if (tcp_fd != -1 && p[0].revents & POLLIN) {
0e59034e
RB
1600 RTSPMessageHeader reply;
1601
3df54c6b 1602 ret = ff_rtsp_read_reply(s, &reply, NULL, 0, NULL);
3032276b
MS
1603 if (ret < 0)
1604 return ret;
0e59034e 1605 /* XXX: parse message */
c02fd3d2 1606 if (rt->state != RTSP_STATE_STREAMING)
0e59034e
RB
1607 return 0;
1608 }
5fe8021a 1609#endif
9cba6f5f 1610 } else if (n == 0 && ++timeout_cnt >= MAX_TIMEOUTS) {
28c4741a 1611 return AVERROR(ETIMEDOUT);
9cba6f5f
SG
1612 } else if (n < 0 && errno != EINTR)
1613 return AVERROR(errno);
0e59034e
RB
1614 }
1615}
1616
0526c6f7 1617int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
0e59034e
RB
1618{
1619 RTSPState *rt = s->priv_data;
1620 int ret, len;
321259c1
MS
1621 RTSPStream *rtsp_st, *first_queue_st = NULL;
1622 int64_t wait_end = 0;
0e59034e 1623
b20359f5
JA
1624 if (rt->nb_byes == rt->nb_rtsp_streams)
1625 return AVERROR_EOF;
1626
0e59034e
RB
1627 /* get next frames from the same RTP packet */
1628 if (rt->cur_transport_priv) {
c8965800 1629 if (rt->transport == RTSP_TRANSPORT_RDT) {
0e59034e 1630 ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
c8965800 1631 } else
bfc6db44 1632 ret = ff_rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0);
0e59034e
RB
1633 if (ret == 0) {
1634 rt->cur_transport_priv = NULL;
1635 return 0;
1636 } else if (ret == 1) {
1637 return 0;
c8965800 1638 } else
0e59034e 1639 rt->cur_transport_priv = NULL;
0e59034e
RB
1640 }
1641
321259c1
MS
1642 if (rt->transport == RTSP_TRANSPORT_RTP) {
1643 int i;
1644 int64_t first_queue_time = 0;
1645 for (i = 0; i < rt->nb_rtsp_streams; i++) {
1646 RTPDemuxContext *rtpctx = rt->rtsp_streams[i]->transport_priv;
9e99f84f
MS
1647 int64_t queue_time;
1648 if (!rtpctx)
1649 continue;
1650 queue_time = ff_rtp_queued_packet_time(rtpctx);
321259c1
MS
1651 if (queue_time && (queue_time - first_queue_time < 0 ||
1652 !first_queue_time)) {
1653 first_queue_time = queue_time;
1654 first_queue_st = rt->rtsp_streams[i];
1655 }
1656 }
1657 if (first_queue_time)
1658 wait_end = first_queue_time + s->max_delay;
1659 }
1660
0e59034e
RB
1661 /* read next RTP packet */
1662 redo:
96a7c975
MS
1663 if (!rt->recvbuf) {
1664 rt->recvbuf = av_malloc(RECVBUF_SIZE);
1665 if (!rt->recvbuf)
1666 return AVERROR(ENOMEM);
1667 }
1668
0e59034e
RB
1669 switch(rt->lower_transport) {
1670 default:
5fe8021a 1671#if CONFIG_RTSP_DEMUXER
0e59034e 1672 case RTSP_LOWER_TRANSPORT_TCP:
0526c6f7 1673 len = ff_rtsp_tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);
0e59034e 1674 break;
5fe8021a 1675#endif
0e59034e
RB
1676 case RTSP_LOWER_TRANSPORT_UDP:
1677 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
321259c1 1678 len = udp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
2c35a6bd 1679 if (len > 0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
bfc6db44 1680 ff_rtp_check_and_send_back_rr(rtsp_st->transport_priv, len);
0e59034e
RB
1681 break;
1682 }
321259c1
MS
1683 if (len == AVERROR(EAGAIN) && first_queue_st &&
1684 rt->transport == RTSP_TRANSPORT_RTP) {
1685 rtsp_st = first_queue_st;
bfc6db44 1686 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, NULL, 0);
321259c1
MS
1687 goto end;
1688 }
0e59034e
RB
1689 if (len < 0)
1690 return len;
1691 if (len == 0)
1692 return AVERROR_EOF;
c8965800 1693 if (rt->transport == RTSP_TRANSPORT_RDT) {
ad4ad27f 1694 ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
2cab6b48 1695 } else {
bfc6db44 1696 ret = ff_rtp_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
2cab6b48
MS
1697 if (ret < 0) {
1698 /* Either bad packet, or a RTCP packet. Check if the
1699 * first_rtcp_ntp_time field was initialized. */
1700 RTPDemuxContext *rtpctx = rtsp_st->transport_priv;
1701 if (rtpctx->first_rtcp_ntp_time != AV_NOPTS_VALUE) {
1702 /* first_rtcp_ntp_time has been initialized for this stream,
1703 * copy the same value to all other uninitialized streams,
1704 * in order to map their timestamp origin to the same ntp time
1705 * as this one. */
1706 int i;
3a1cdcc7
MS
1707 AVStream *st = NULL;
1708 if (rtsp_st->stream_index >= 0)
1709 st = s->streams[rtsp_st->stream_index];
2cab6b48 1710 for (i = 0; i < rt->nb_rtsp_streams; i++) {
744a882f 1711 RTPDemuxContext *rtpctx2 = rt->rtsp_streams[i]->transport_priv;
3a1cdcc7
MS
1712 AVStream *st2 = NULL;
1713 if (rt->rtsp_streams[i]->stream_index >= 0)
1714 st2 = s->streams[rt->rtsp_streams[i]->stream_index];
1715 if (rtpctx2 && st && st2 &&
1716 rtpctx2->first_rtcp_ntp_time == AV_NOPTS_VALUE) {
2cab6b48 1717 rtpctx2->first_rtcp_ntp_time = rtpctx->first_rtcp_ntp_time;
3a1cdcc7
MS
1718 rtpctx2->rtcp_ts_offset = av_rescale_q(
1719 rtpctx->rtcp_ts_offset, st->time_base,
1720 st2->time_base);
1721 }
2cab6b48
MS
1722 }
1723 }
b20359f5
JA
1724 if (ret == -RTCP_BYE) {
1725 rt->nb_byes++;
1726
1727 av_log(s, AV_LOG_DEBUG, "Received BYE for stream %d (%d/%d)\n",
1728 rtsp_st->stream_index, rt->nb_byes, rt->nb_rtsp_streams);
1729
1730 if (rt->nb_byes == rt->nb_rtsp_streams)
1731 return AVERROR_EOF;
1732 }
2cab6b48
MS
1733 }
1734 }
321259c1 1735end:
0e59034e
RB
1736 if (ret < 0)
1737 goto redo;
c8965800 1738 if (ret == 1)
0e59034e
RB
1739 /* more packets may follow, so we save the RTP context */
1740 rt->cur_transport_priv = rtsp_st->transport_priv;
0e59034e
RB
1741
1742 return ret;
1743}
44b70ce5 1744#endif /* CONFIG_RTPDEC */
0e59034e 1745
44b70ce5 1746#if CONFIG_SDP_DEMUXER
cb1fdc61 1747static int sdp_probe(AVProbeData *p1)
93ced3e8 1748{
0e1ceacd 1749 const char *p = p1->buf, *p_end = p1->buf + p1->buf_size;
cb1fdc61 1750
3fbd12d1 1751 /* we look for a line beginning "c=IN IP" */
0e1ceacd 1752 while (p < p_end && *p != '\0') {
3fbd12d1
MS
1753 if (p + sizeof("c=IN IP") - 1 < p_end &&
1754 av_strstart(p, "c=IN IP", NULL))
cb1fdc61 1755 return AVPROBE_SCORE_MAX / 2;
0e1ceacd 1756
c8965800 1757 while (p < p_end - 1 && *p != '\n') p++;
0e1ceacd 1758 if (++p >= p_end)
cb1fdc61 1759 break;
cb1fdc61
FB
1760 if (*p == '\r')
1761 p++;
1762 }
93ced3e8
FB
1763 return 0;
1764}
1765
c8965800 1766static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap)
93ced3e8 1767{
8b1ab7bf 1768 RTSPState *rt = s->priv_data;
93ced3e8
FB
1769 RTSPStream *rtsp_st;
1770 int size, i, err;
1771 char *content;
1772 char url[1024];
1773
57b5555c
MS
1774 if (!ff_network_init())
1775 return AVERROR(EIO);
1776
93ced3e8
FB
1777 /* read the whole sdp file */
1778 /* XXX: better loading */
1779 content = av_malloc(SDP_MAX_SIZE);
b7effd4e 1780 size = avio_read(s->pb, content, SDP_MAX_SIZE - 1);
93ced3e8
FB
1781 if (size <= 0) {
1782 av_free(content);
1783 return AVERROR_INVALIDDATA;
1784 }
1785 content[size] ='\0';
1786
f81c7ac7 1787 err = ff_sdp_parse(s, content);
93ced3e8 1788 av_free(content);
f81c7ac7 1789 if (err) goto fail;
93ced3e8
FB
1790
1791 /* open each RTP stream */
c8965800 1792 for (i = 0; i < rt->nb_rtsp_streams; i++) {
3fbd12d1 1793 char namebuf[50];
8b1ab7bf 1794 rtsp_st = rt->rtsp_streams[i];
115329f1 1795
3fbd12d1
MS
1796 getnameinfo((struct sockaddr*) &rtsp_st->sdp_ip, sizeof(rtsp_st->sdp_ip),
1797 namebuf, sizeof(namebuf), NULL, 0, NI_NUMERICHOST);
57b5555c 1798 ff_url_join(url, sizeof(url), "rtp", NULL,
3fbd12d1 1799 namebuf, rtsp_st->sdp_port,
57b5555c
MS
1800 "?localport=%d&ttl=%d", rtsp_st->sdp_port,
1801 rtsp_st->sdp_ttl);
59d96941 1802 if (ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE) < 0) {
93ced3e8
FB
1803 err = AVERROR_INVALIDDATA;
1804 goto fail;
1805 }
ee0cb67f 1806 if ((err = rtsp_open_transport_ctx(s, rtsp_st)))
8b1ab7bf 1807 goto fail;
93ced3e8
FB
1808 }
1809 return 0;
c8965800 1810fail:
3307e6ea 1811 ff_rtsp_close_streams(s);
57b5555c 1812 ff_network_close();
93ced3e8
FB
1813 return err;
1814}
1815
93ced3e8
FB
1816static int sdp_read_close(AVFormatContext *s)
1817{
3307e6ea 1818 ff_rtsp_close_streams(s);
57b5555c 1819 ff_network_close();
93ced3e8
FB
1820 return 0;
1821}
1822
c6610a21 1823AVInputFormat ff_sdp_demuxer = {
dfc2c4d9
AK
1824 .name = "sdp",
1825 .long_name = NULL_IF_CONFIG_SMALL("SDP"),
1826 .priv_data_size = sizeof(RTSPState),
1827 .read_probe = sdp_probe,
1828 .read_header = sdp_read_header,
1829 .read_packet = ff_rtsp_fetch_packet,
1830 .read_close = sdp_read_close,
93ced3e8 1831};
44b70ce5 1832#endif /* CONFIG_SDP_DEMUXER */
44594cc7 1833
44b70ce5 1834#if CONFIG_RTP_DEMUXER
44594cc7
MS
1835static int rtp_probe(AVProbeData *p)
1836{
1837 if (av_strstart(p->filename, "rtp:", NULL))
1838 return AVPROBE_SCORE_MAX;
1839 return 0;
1840}
1841
1842static int rtp_read_header(AVFormatContext *s,
1843 AVFormatParameters *ap)
1844{
1845 uint8_t recvbuf[1500];
1846 char host[500], sdp[500];
1847 int ret, port;
1848 URLContext* in = NULL;
1849 int payload_type;
1850 AVCodecContext codec;
1851 struct sockaddr_storage addr;
ae628ec1 1852 AVIOContext pb;
44594cc7
MS
1853 socklen_t addrlen = sizeof(addr);
1854
1855 if (!ff_network_init())
1856 return AVERROR(EIO);
1857
59d96941 1858 ret = ffurl_open(&in, s->filename, AVIO_FLAG_READ);
44594cc7
MS
1859 if (ret)
1860 goto fail;
1861
1862 while (1) {
bc371aca 1863 ret = ffurl_read(in, recvbuf, sizeof(recvbuf));
44594cc7
MS
1864 if (ret == AVERROR(EAGAIN))
1865 continue;
1866 if (ret < 0)
1867 goto fail;
1868 if (ret < 12) {
1869 av_log(s, AV_LOG_WARNING, "Received too short packet\n");
1870 continue;
1871 }
1872
1873 if ((recvbuf[0] & 0xc0) != 0x80) {
1874 av_log(s, AV_LOG_WARNING, "Unsupported RTP version packet "
1875 "received\n");
1876 continue;
1877 }
1878
1879 payload_type = recvbuf[1] & 0x7f;
1880 break;
1881 }
1869ea03 1882 getsockname(ffurl_get_file_handle(in), (struct sockaddr*) &addr, &addrlen);
e52a9145 1883 ffurl_close(in);
44594cc7
MS
1884 in = NULL;
1885
1886 memset(&codec, 0, sizeof(codec));
1887 if (ff_rtp_get_codec_info(&codec, payload_type)) {
1888 av_log(s, AV_LOG_ERROR, "Unable to receive RTP payload type %d "
1889 "without an SDP file describing it\n",
1890 payload_type);
1891 goto fail;
1892 }
1893 if (codec.codec_type != AVMEDIA_TYPE_DATA) {
1894 av_log(s, AV_LOG_WARNING, "Guessing on RTP content - if not received "
1895 "properly you need an SDP file "
1896 "describing it\n");
1897 }
1898
1899 av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port,
1900 NULL, 0, s->filename);
1901
1902 snprintf(sdp, sizeof(sdp),
1903 "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
1904 addr.ss_family == AF_INET ? 4 : 6, host,
1905 codec.codec_type == AVMEDIA_TYPE_DATA ? "application" :
1906 codec.codec_type == AVMEDIA_TYPE_VIDEO ? "video" : "audio",
1907 port, payload_type);
1908 av_log(s, AV_LOG_VERBOSE, "SDP:\n%s\n", sdp);
1909
e731b8d8 1910 ffio_init_context(&pb, sdp, strlen(sdp), 0, NULL, NULL, NULL, NULL);
44594cc7
MS
1911 s->pb = &pb;
1912
1913 /* sdp_read_header initializes this again */
1914 ff_network_close();
1915
1916 ret = sdp_read_header(s, ap);
1917 s->pb = NULL;
1918 return ret;
1919
1920fail:
1921 if (in)
e52a9145 1922 ffurl_close(in);
44594cc7
MS
1923 ff_network_close();
1924 return ret;
1925}
1926
c6610a21 1927AVInputFormat ff_rtp_demuxer = {
dfc2c4d9
AK
1928 .name = "rtp",
1929 .long_name = NULL_IF_CONFIG_SMALL("RTP input format"),
1930 .priv_data_size = sizeof(RTSPState),
1931 .read_probe = rtp_probe,
1932 .read_header = rtp_read_header,
1933 .read_packet = ff_rtsp_fetch_packet,
1934 .read_close = sdp_read_close,
44594cc7
MS
1935 .flags = AVFMT_NOFILE,
1936};
44b70ce5 1937#endif /* CONFIG_RTP_DEMUXER */
44594cc7 1938