do loop filter immediatly after each macroblock is decoded instead of after a frame...
[libav.git] / libavformat / rtsp.c
CommitLineData
1617ad97 1/*
93ced3e8 2 * RTSP/SDP client
1617ad97
FB
3 * Copyright (c) 2002 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19#include "avformat.h"
20
438fcb75 21#include <unistd.h> /* for select() prototype */
1617ad97 22#include <sys/time.h>
b8a78f41 23#include <netinet/in.h>
1617ad97 24#include <sys/socket.h>
9ddd71fc
FR
25#ifndef __BEOS__
26# include <arpa/inet.h>
27#else
28# include "barpainet.h"
29#endif
1617ad97
FB
30
31//#define DEBUG
b6892136 32//#define DEBUG_RTP_TCP
1617ad97 33
ff762d6e
FB
34enum RTSPClientState {
35 RTSP_STATE_IDLE,
36 RTSP_STATE_PLAYING,
37 RTSP_STATE_PAUSED,
38};
39
1617ad97
FB
40typedef struct RTSPState {
41 URLContext *rtsp_hd; /* RTSP TCP connexion handle */
8b1ab7bf
FB
42 int nb_rtsp_streams;
43 struct RTSPStream **rtsp_streams;
ff762d6e
FB
44
45 enum RTSPClientState state;
46 int64_t seek_timestamp;
47
b6892136
FB
48 /* XXX: currently we use unbuffered input */
49 // ByteIOContext rtsp_gb;
1617ad97
FB
50 int seq; /* RTSP command sequence number */
51 char session_id[512];
52 enum RTSPProtocol protocol;
53 char last_reply[2048]; /* XXX: allocate ? */
8b1ab7bf 54 RTPDemuxContext *cur_rtp;
1617ad97
FB
55} RTSPState;
56
57typedef struct RTSPStream {
8b1ab7bf
FB
58 URLContext *rtp_handle; /* RTP stream handle */
59 RTPDemuxContext *rtp_ctx; /* RTP parse context */
60
61 int stream_index; /* corresponding stream index, if any. -1 if none (MPEG2TS case) */
1617ad97 62 int interleaved_min, interleaved_max; /* interleave ids, if TCP transport */
93ced3e8
FB
63 char control_url[1024]; /* url for this stream (from SDP) */
64
65 int sdp_port; /* port (from SDP content - not used in RTSP) */
66 struct in_addr sdp_ip; /* IP address (from SDP content - not used in RTSP) */
67 int sdp_ttl; /* IP TTL (from SDP content - not used in RTSP) */
68 int sdp_payload_type; /* payload type - only used in SDP */
1617ad97
FB
69} RTSPStream;
70
ff762d6e
FB
71static int rtsp_read_play(AVFormatContext *s);
72
1617ad97
FB
73/* XXX: currently, the only way to change the protocols consists in
74 changing this variable */
ff762d6e 75#if 0
1617ad97 76int rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP) | (1 << RTSP_PROTOCOL_RTP_UDP) | (1 << RTSP_PROTOCOL_RTP_UDP_MULTICAST);
b6892136
FB
77#else
78/* try it if a proxy is used */
79int rtsp_default_protocols = (1 << RTSP_PROTOCOL_RTP_TCP);
80#endif
1617ad97 81
85fb7b34
FB
82/* if non zero, then set a range for RTP ports */
83int rtsp_rtp_port_min = 0;
84int rtsp_rtp_port_max = 0;
85
1617ad97
FB
86FFRTSPCallback *ff_rtsp_callback = NULL;
87
88static int rtsp_probe(AVProbeData *p)
89{
90 if (strstart(p->filename, "rtsp:", NULL))
91 return AVPROBE_SCORE_MAX;
92 return 0;
93}
94
95static int redir_isspace(int c)
96{
97 return (c == ' ' || c == '\t' || c == '\n' || c == '\r');
98}
99
100static void skip_spaces(const char **pp)
101{
102 const char *p;
103 p = *pp;
104 while (redir_isspace(*p))
105 p++;
106 *pp = p;
107}
108
109static void get_word_sep(char *buf, int buf_size, const char *sep,
110 const char **pp)
111{
112 const char *p;
113 char *q;
114
115 p = *pp;
116 skip_spaces(&p);
117 q = buf;
118 while (!strchr(sep, *p) && *p != '\0') {
119 if ((q - buf) < buf_size - 1)
120 *q++ = *p;
121 p++;
122 }
123 if (buf_size > 0)
124 *q = '\0';
125 *pp = p;
126}
127
128static void get_word(char *buf, int buf_size, const char **pp)
129{
130 const char *p;
131 char *q;
132
133 p = *pp;
134 skip_spaces(&p);
135 q = buf;
136 while (!redir_isspace(*p) && *p != '\0') {
137 if ((q - buf) < buf_size - 1)
138 *q++ = *p;
139 p++;
140 }
141 if (buf_size > 0)
142 *q = '\0';
143 *pp = p;
144}
145
93ced3e8
FB
146/* parse the rtpmap description: <codec_name>/<clock_rate>[/<other
147 params>] */
148static int sdp_parse_rtpmap(AVCodecContext *codec, const char *p)
149{
150 char buf[256];
151
152 /* codec name */
153 get_word_sep(buf, sizeof(buf), "/", &p);
154 if (!strcmp(buf, "MP4V-ES")) {
155 codec->codec_id = CODEC_ID_MPEG4;
156 return 0;
157 } else {
158 return -1;
159 }
160}
161
162/* return the length and optionnaly the data */
163static int hex_to_data(uint8_t *data, const char *p)
164{
165 int c, len, v;
166
167 len = 0;
168 v = 1;
169 for(;;) {
170 skip_spaces(&p);
171 if (p == '\0')
172 break;
173 c = toupper((unsigned char)*p++);
174 if (c >= '0' && c <= '9')
175 c = c - '0';
176 else if (c >= 'A' && c <= 'F')
177 c = c - 'A' + 10;
178 else
179 break;
180 v = (v << 4) | c;
181 if (v & 0x100) {
182 if (data)
183 data[len] = v;
184 len++;
185 v = 1;
186 }
187 }
188 return len;
189}
190
191static void sdp_parse_fmtp(AVCodecContext *codec, const char *p)
192{
193 char attr[256];
194 char value[4096];
195 int len;
196
197 /* loop on each attribute */
198 for(;;) {
199 skip_spaces(&p);
200 if (*p == '\0')
201 break;
202 get_word_sep(attr, sizeof(attr), "=", &p);
203 if (*p == '=')
204 p++;
205 get_word_sep(value, sizeof(value), ";", &p);
206 if (*p == ';')
207 p++;
208 /* handle MPEG4 video */
209 switch(codec->codec_id) {
210 case CODEC_ID_MPEG4:
211 if (!strcmp(attr, "config")) {
212 /* decode the hexa encoded parameter */
213 len = hex_to_data(NULL, value);
214 codec->extradata = av_mallocz(len);
215 if (!codec->extradata)
216 goto fail;
217 codec->extradata_size = len;
218 hex_to_data(codec->extradata, value);
219 }
220 break;
221 default:
222 /* ignore data for other codecs */
223 break;
224 }
225 fail: ;
226 // printf("'%s' = '%s'\n", attr, value);
227 }
228}
229
230typedef struct SDPParseState {
231 /* SDP only */
232 struct in_addr default_ip;
233 int default_ttl;
234} SDPParseState;
235
236static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
1617ad97
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237 int letter, const char *buf)
238{
8b1ab7bf 239 RTSPState *rt = s->priv_data;
1617ad97
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240 char buf1[64], st_type[64];
241 const char *p;
93ced3e8 242 int codec_type, payload_type, i;
1617ad97
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243 AVStream *st;
244 RTSPStream *rtsp_st;
93ced3e8
FB
245 struct in_addr sdp_ip;
246 int ttl;
247
1617ad97
FB
248#ifdef DEBUG
249 printf("sdp: %c='%s'\n", letter, buf);
250#endif
251
252 p = buf;
253 switch(letter) {
93ced3e8
FB
254 case 'c':
255 get_word(buf1, sizeof(buf1), &p);
256 if (strcmp(buf1, "IN") != 0)
257 return;
258 get_word(buf1, sizeof(buf1), &p);
259 if (strcmp(buf1, "IP4") != 0)
260 return;
261 get_word_sep(buf1, sizeof(buf1), "/", &p);
262 if (inet_aton(buf1, &sdp_ip) == 0)
263 return;
264 ttl = 16;
265 if (*p == '/') {
266 p++;
267 get_word_sep(buf1, sizeof(buf1), "/", &p);
268 ttl = atoi(buf1);
269 }
270 if (s->nb_streams == 0) {
271 s1->default_ip = sdp_ip;
272 s1->default_ttl = ttl;
273 } else {
274 st = s->streams[s->nb_streams - 1];
275 rtsp_st = st->priv_data;
276 rtsp_st->sdp_ip = sdp_ip;
277 rtsp_st->sdp_ttl = ttl;
278 }
279 break;
1617ad97
FB
280 case 's':
281 pstrcpy(s->title, sizeof(s->title), p);
282 break;
283 case 'i':
284 if (s->nb_streams == 0) {
285 pstrcpy(s->comment, sizeof(s->comment), p);
286 break;
287 }
288 break;
289 case 'm':
290 /* new stream */
291 get_word(st_type, sizeof(st_type), &p);
292 if (!strcmp(st_type, "audio")) {
293 codec_type = CODEC_TYPE_AUDIO;
294 } else if (!strcmp(st_type, "video")) {
295 codec_type = CODEC_TYPE_VIDEO;
296 } else {
297 return;
298 }
1617ad97
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299 rtsp_st = av_mallocz(sizeof(RTSPStream));
300 if (!rtsp_st)
301 return;
8b1ab7bf
FB
302 rtsp_st->stream_index = -1;
303 dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st);
93ced3e8
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304
305 rtsp_st->sdp_ip = s1->default_ip;
306 rtsp_st->sdp_ttl = s1->default_ttl;
307
93ced3e8
FB
308 get_word(buf1, sizeof(buf1), &p); /* port */
309 rtsp_st->sdp_port = atoi(buf1);
310
311 get_word(buf1, sizeof(buf1), &p); /* protocol (ignored) */
312
313 /* XXX: handle list of formats */
314 get_word(buf1, sizeof(buf1), &p); /* format list */
315 rtsp_st->sdp_payload_type = atoi(buf1);
93ced3e8 316
8b1ab7bf
FB
317 if (rtsp_st->sdp_payload_type == RTP_PT_MPEG2TS) {
318 /* no corresponding stream */
319 } else {
320 st = av_new_stream(s, 0);
321 if (!st)
322 return;
323 st->priv_data = rtsp_st;
324 rtsp_st->stream_index = st->index;
325 st->codec.codec_type = codec_type;
326 if (rtsp_st->sdp_payload_type < 96) {
327 /* if standard payload type, we can find the codec right now */
328 rtp_get_codec_info(&st->codec, rtsp_st->sdp_payload_type);
329 }
330 }
1617ad97
FB
331 /* put a default control url */
332 pstrcpy(rtsp_st->control_url, sizeof(rtsp_st->control_url), s->filename);
1617ad97
FB
333 break;
334 case 'a':
335 if (strstart(p, "control:", &p) && s->nb_streams > 0) {
336 char proto[32];
337 /* get the control url */
338 st = s->streams[s->nb_streams - 1];
339 rtsp_st = st->priv_data;
340
341 /* XXX: may need to add full url resolution */
342 url_split(proto, sizeof(proto), NULL, 0, NULL, NULL, 0, p);
343 if (proto[0] == '\0') {
344 /* relative control URL */
345 pstrcat(rtsp_st->control_url, sizeof(rtsp_st->control_url), "/");
346 pstrcat(rtsp_st->control_url, sizeof(rtsp_st->control_url), p);
347 } else {
348 pstrcpy(rtsp_st->control_url, sizeof(rtsp_st->control_url), p);
349 }
93ced3e8
FB
350 } else if (strstart(p, "rtpmap:", &p)) {
351 /* NOTE: rtpmap is only supported AFTER the 'm=' tag */
352 get_word(buf1, sizeof(buf1), &p);
353 payload_type = atoi(buf1);
354 for(i = 0; i < s->nb_streams;i++) {
355 st = s->streams[i];
356 rtsp_st = st->priv_data;
357 if (rtsp_st->sdp_payload_type == payload_type) {
358 sdp_parse_rtpmap(&st->codec, p);
359 }
360 }
361 } else if (strstart(p, "fmtp:", &p)) {
362 /* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */
363 get_word(buf1, sizeof(buf1), &p);
364 payload_type = atoi(buf1);
365 for(i = 0; i < s->nb_streams;i++) {
366 st = s->streams[i];
367 rtsp_st = st->priv_data;
368 if (rtsp_st->sdp_payload_type == payload_type) {
369 sdp_parse_fmtp(&st->codec, p);
370 }
371 }
1617ad97
FB
372 }
373 break;
374 }
375}
376
5c91a675 377static int sdp_parse(AVFormatContext *s, const char *content)
1617ad97
FB
378{
379 const char *p;
380 int letter;
381 char buf[1024], *q;
93ced3e8
FB
382 SDPParseState sdp_parse_state, *s1 = &sdp_parse_state;
383
384 memset(s1, 0, sizeof(SDPParseState));
1617ad97
FB
385 p = content;
386 for(;;) {
387 skip_spaces(&p);
388 letter = *p;
389 if (letter == '\0')
390 break;
391 p++;
392 if (*p != '=')
393 goto next_line;
394 p++;
395 /* get the content */
396 q = buf;
b6892136 397 while (*p != '\n' && *p != '\r' && *p != '\0') {
1617ad97
FB
398 if ((q - buf) < sizeof(buf) - 1)
399 *q++ = *p;
400 p++;
401 }
402 *q = '\0';
93ced3e8 403 sdp_parse_line(s, s1, letter, buf);
1617ad97
FB
404 next_line:
405 while (*p != '\n' && *p != '\0')
406 p++;
407 if (*p == '\n')
408 p++;
409 }
410 return 0;
411}
412
413static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp)
414{
415 const char *p;
416 int v;
417
418 p = *pp;
419 skip_spaces(&p);
420 v = strtol(p, (char **)&p, 10);
421 if (*p == '-') {
422 p++;
423 *min_ptr = v;
424 v = strtol(p, (char **)&p, 10);
425 *max_ptr = v;
426 } else {
427 *min_ptr = v;
428 *max_ptr = v;
429 }
430 *pp = p;
431}
432
433/* XXX: only one transport specification is parsed */
434static void rtsp_parse_transport(RTSPHeader *reply, const char *p)
435{
436 char transport_protocol[16];
437 char profile[16];
438 char lower_transport[16];
439 char parameter[16];
440 RTSPTransportField *th;
441 char buf[256];
442
443 reply->nb_transports = 0;
444
445 for(;;) {
446 skip_spaces(&p);
447 if (*p == '\0')
448 break;
449
450 th = &reply->transports[reply->nb_transports];
451
452 get_word_sep(transport_protocol, sizeof(transport_protocol),
453 "/", &p);
454 if (*p == '/')
455 p++;
456 get_word_sep(profile, sizeof(profile), "/;,", &p);
457 lower_transport[0] = '\0';
458 if (*p == '/') {
b6892136 459 p++;
1617ad97
FB
460 get_word_sep(lower_transport, sizeof(lower_transport),
461 ";,", &p);
462 }
b6892136 463 if (!strcasecmp(lower_transport, "TCP"))
1617ad97
FB
464 th->protocol = RTSP_PROTOCOL_RTP_TCP;
465 else
466 th->protocol = RTSP_PROTOCOL_RTP_UDP;
467
468 if (*p == ';')
469 p++;
470 /* get each parameter */
471 while (*p != '\0' && *p != ',') {
472 get_word_sep(parameter, sizeof(parameter), "=;,", &p);
473 if (!strcmp(parameter, "port")) {
474 if (*p == '=') {
475 p++;
476 rtsp_parse_range(&th->port_min, &th->port_max, &p);
477 }
478 } else if (!strcmp(parameter, "client_port")) {
479 if (*p == '=') {
480 p++;
481 rtsp_parse_range(&th->client_port_min,
482 &th->client_port_max, &p);
483 }
484 } else if (!strcmp(parameter, "server_port")) {
485 if (*p == '=') {
486 p++;
487 rtsp_parse_range(&th->server_port_min,
488 &th->server_port_max, &p);
489 }
490 } else if (!strcmp(parameter, "interleaved")) {
491 if (*p == '=') {
492 p++;
493 rtsp_parse_range(&th->interleaved_min,
494 &th->interleaved_max, &p);
495 }
496 } else if (!strcmp(parameter, "multicast")) {
497 if (th->protocol == RTSP_PROTOCOL_RTP_UDP)
498 th->protocol = RTSP_PROTOCOL_RTP_UDP_MULTICAST;
499 } else if (!strcmp(parameter, "ttl")) {
500 if (*p == '=') {
501 p++;
502 th->ttl = strtol(p, (char **)&p, 10);
503 }
504 } else if (!strcmp(parameter, "destination")) {
505 struct in_addr ipaddr;
506
507 if (*p == '=') {
508 p++;
509 get_word_sep(buf, sizeof(buf), ";,", &p);
510 if (inet_aton(buf, &ipaddr))
511 th->destination = ntohl(ipaddr.s_addr);
512 }
513 }
514 while (*p != ';' && *p != '\0' && *p != ',')
515 p++;
516 if (*p == ';')
517 p++;
518 }
519 if (*p == ',')
520 p++;
521
522 reply->nb_transports++;
523 }
524}
525
ff762d6e
FB
526static void rtsp_parse_range_npt(RTSPHeader *reply, const char *p)
527{
528 char buf[256];
529
530 skip_spaces(&p);
531 if (!stristart(p, "npt=", &p))
532 return;
533
534 reply->range_start = AV_NOPTS_VALUE;
535 reply->range_end = AV_NOPTS_VALUE;
536
537 get_word_sep(buf, sizeof(buf), "-", &p);
538 reply->range_start = parse_date(buf, 1);
539 if (*p == '-') {
540 p++;
541 get_word_sep(buf, sizeof(buf), "-", &p);
542 reply->range_end = parse_date(buf, 1);
543 }
544}
545
1617ad97
FB
546void rtsp_parse_line(RTSPHeader *reply, const char *buf)
547{
548 const char *p;
549
550 /* NOTE: we do case independent match for broken servers */
551 p = buf;
552 if (stristart(p, "Session:", &p)) {
553 get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p);
554 } else if (stristart(p, "Content-Length:", &p)) {
555 reply->content_length = strtol(p, NULL, 10);
556 } else if (stristart(p, "Transport:", &p)) {
557 rtsp_parse_transport(reply, p);
558 } else if (stristart(p, "CSeq:", &p)) {
559 reply->seq = strtol(p, NULL, 10);
ff762d6e
FB
560 } else if (stristart(p, "Range:", &p)) {
561 rtsp_parse_range_npt(reply, p);
1617ad97
FB
562 }
563}
564
b7b8fc34
FB
565/* skip a RTP/TCP interleaved packet */
566static void rtsp_skip_packet(AVFormatContext *s)
567{
568 RTSPState *rt = s->priv_data;
569 int ret, len, len1;
570 uint8_t buf[1024];
571
572 ret = url_read(rt->rtsp_hd, buf, 3);
573 if (ret != 3)
574 return;
575 len = (buf[1] << 8) | buf[2];
576#ifdef DEBUG
577 printf("skipping RTP packet len=%d\n", len);
578#endif
579 /* skip payload */
580 while (len > 0) {
581 len1 = len;
582 if (len1 > sizeof(buf))
583 len1 = sizeof(buf);
584 ret = url_read(rt->rtsp_hd, buf, len1);
585 if (ret != len1)
586 return;
587 len -= len1;
588 }
589}
1617ad97
FB
590
591static void rtsp_send_cmd(AVFormatContext *s,
592 const char *cmd, RTSPHeader *reply,
593 unsigned char **content_ptr)
594{
595 RTSPState *rt = s->priv_data;
596 char buf[4096], buf1[1024], *q;
597 unsigned char ch;
598 const char *p;
599 int content_length, line_count;
600 unsigned char *content = NULL;
601
602 memset(reply, 0, sizeof(RTSPHeader));
603
604 rt->seq++;
605 pstrcpy(buf, sizeof(buf), cmd);
b6892136 606 snprintf(buf1, sizeof(buf1), "CSeq: %d\r\n", rt->seq);
1617ad97
FB
607 pstrcat(buf, sizeof(buf), buf1);
608 if (rt->session_id[0] != '\0' && !strstr(cmd, "\nIf-Match:")) {
b6892136 609 snprintf(buf1, sizeof(buf1), "Session: %s\r\n", rt->session_id);
1617ad97
FB
610 pstrcat(buf, sizeof(buf), buf1);
611 }
b6892136 612 pstrcat(buf, sizeof(buf), "\r\n");
1617ad97
FB
613#ifdef DEBUG
614 printf("Sending:\n%s--\n", buf);
615#endif
616 url_write(rt->rtsp_hd, buf, strlen(buf));
617
618 /* parse reply (XXX: use buffers) */
619 line_count = 0;
620 rt->last_reply[0] = '\0';
621 for(;;) {
622 q = buf;
623 for(;;) {
b7b8fc34 624 if (url_read(rt->rtsp_hd, &ch, 1) != 1)
1617ad97
FB
625 break;
626 if (ch == '\n')
627 break;
b7b8fc34
FB
628 if (ch == '$') {
629 /* XXX: only parse it if first char on line ? */
630 rtsp_skip_packet(s);
631 } else if (ch != '\r') {
1617ad97
FB
632 if ((q - buf) < sizeof(buf) - 1)
633 *q++ = ch;
634 }
635 }
636 *q = '\0';
637#ifdef DEBUG
638 printf("line='%s'\n", buf);
639#endif
640 /* test if last line */
641 if (buf[0] == '\0')
642 break;
643 p = buf;
644 if (line_count == 0) {
645 /* get reply code */
646 get_word(buf1, sizeof(buf1), &p);
647 get_word(buf1, sizeof(buf1), &p);
648 reply->status_code = atoi(buf1);
649 } else {
650 rtsp_parse_line(reply, p);
651 pstrcat(rt->last_reply, sizeof(rt->last_reply), p);
652 pstrcat(rt->last_reply, sizeof(rt->last_reply), "\n");
653 }
654 line_count++;
655 }
656
657 if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0')
658 pstrcpy(rt->session_id, sizeof(rt->session_id), reply->session_id);
659
660 content_length = reply->content_length;
661 if (content_length > 0) {
662 /* leave some room for a trailing '\0' (useful for simple parsing) */
663 content = av_malloc(content_length + 1);
664 url_read(rt->rtsp_hd, content, content_length);
665 content[content_length] = '\0';
666 }
667 if (content_ptr)
668 *content_ptr = content;
669}
670
671/* useful for modules: set RTSP callback function */
672
673void rtsp_set_callback(FFRTSPCallback *rtsp_cb)
674{
675 ff_rtsp_callback = rtsp_cb;
676}
677
678
8b1ab7bf
FB
679/* close and free RTSP streams */
680static void rtsp_close_streams(RTSPState *rt)
681{
682 int i;
683 RTSPStream *rtsp_st;
684
685 for(i=0;i<rt->nb_rtsp_streams;i++) {
686 rtsp_st = rt->rtsp_streams[i];
687 if (rtsp_st) {
688 if (rtsp_st->rtp_ctx)
689 rtp_parse_close(rtsp_st->rtp_ctx);
690 if (rtsp_st->rtp_handle)
691 url_close(rtsp_st->rtp_handle);
692 }
693 av_free(rtsp_st);
694 }
695 av_free(rt->rtsp_streams);
696}
697
1617ad97
FB
698static int rtsp_read_header(AVFormatContext *s,
699 AVFormatParameters *ap)
700{
701 RTSPState *rt = s->priv_data;
702 char host[1024], path[1024], tcpname[1024], cmd[2048];
703 URLContext *rtsp_hd;
704 int port, i, ret, err;
705 RTSPHeader reply1, *reply = &reply1;
706 unsigned char *content = NULL;
1617ad97
FB
707 RTSPStream *rtsp_st;
708 int protocol_mask;
8b1ab7bf 709 AVStream *st;
1617ad97 710
1617ad97
FB
711 /* extract hostname and port */
712 url_split(NULL, 0,
713 host, sizeof(host), &port, path, sizeof(path), s->filename);
714 if (port < 0)
715 port = RTSP_DEFAULT_PORT;
716
717 /* open the tcp connexion */
718 snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port);
719 if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0)
720 return AVERROR_IO;
721 rt->rtsp_hd = rtsp_hd;
722 rt->seq = 0;
723
724 /* describe the stream */
725 snprintf(cmd, sizeof(cmd),
b6892136
FB
726 "DESCRIBE %s RTSP/1.0\r\n"
727 "Accept: application/sdp\r\n",
1617ad97
FB
728 s->filename);
729 rtsp_send_cmd(s, cmd, reply, &content);
730 if (!content) {
731 err = AVERROR_INVALIDDATA;
732 goto fail;
733 }
734 if (reply->status_code != RTSP_STATUS_OK) {
735 err = AVERROR_INVALIDDATA;
736 goto fail;
737 }
738
739 /* now we got the SDP description, we parse it */
740 ret = sdp_parse(s, (const char *)content);
741 av_freep(&content);
742 if (ret < 0) {
743 err = AVERROR_INVALIDDATA;
744 goto fail;
745 }
746
747 protocol_mask = rtsp_default_protocols;
748
749 /* for each stream, make the setup request */
750 /* XXX: we assume the same server is used for the control of each
751 RTSP stream */
8b1ab7bf 752 for(i=0;i<rt->nb_rtsp_streams;i++) {
1617ad97
FB
753 char transport[2048];
754
8b1ab7bf 755 rtsp_st = rt->rtsp_streams[i];
1617ad97
FB
756
757 /* compute available transports */
758 transport[0] = '\0';
759
760 /* RTP/UDP */
761 if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP)) {
85fb7b34
FB
762 char buf[256];
763 int j;
764
765 /* first try in specified port range */
766 if (rtsp_rtp_port_min != 0) {
767 for(j=rtsp_rtp_port_min;j<=rtsp_rtp_port_max;j++) {
768 snprintf(buf, sizeof(buf), "rtp://?localport=%d", j);
8b1ab7bf 769 if (url_open(&rtsp_st->rtp_handle, buf, URL_RDONLY) == 0)
85fb7b34
FB
770 goto rtp_opened;
771 }
1617ad97 772 }
85fb7b34
FB
773
774 /* then try on any port */
8b1ab7bf
FB
775 if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) {
776 err = AVERROR_INVALIDDATA;
777 goto fail;
85fb7b34
FB
778 }
779
780 rtp_opened:
8b1ab7bf 781 port = rtp_get_local_port(rtsp_st->rtp_handle);
1617ad97
FB
782 if (transport[0] != '\0')
783 pstrcat(transport, sizeof(transport), ",");
784 snprintf(transport + strlen(transport), sizeof(transport) - strlen(transport) - 1,
785 "RTP/AVP/UDP;unicast;client_port=%d-%d",
786 port, port + 1);
787 }
788
789 /* RTP/TCP */
790 if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_TCP)) {
791 if (transport[0] != '\0')
792 pstrcat(transport, sizeof(transport), ",");
793 snprintf(transport + strlen(transport), sizeof(transport) - strlen(transport) - 1,
794 "RTP/AVP/TCP");
795 }
796
797 if (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP_MULTICAST)) {
798 if (transport[0] != '\0')
799 pstrcat(transport, sizeof(transport), ",");
800 snprintf(transport + strlen(transport),
801 sizeof(transport) - strlen(transport) - 1,
802 "RTP/AVP/UDP;multicast");
803 }
1617ad97 804 snprintf(cmd, sizeof(cmd),
b6892136
FB
805 "SETUP %s RTSP/1.0\r\n"
806 "Transport: %s\r\n",
1617ad97
FB
807 rtsp_st->control_url, transport);
808 rtsp_send_cmd(s, cmd, reply, NULL);
809 if (reply->status_code != RTSP_STATUS_OK ||
810 reply->nb_transports != 1) {
811 err = AVERROR_INVALIDDATA;
812 goto fail;
813 }
814
815 /* XXX: same protocol for all streams is required */
816 if (i > 0) {
817 if (reply->transports[0].protocol != rt->protocol) {
818 err = AVERROR_INVALIDDATA;
819 goto fail;
820 }
821 } else {
822 rt->protocol = reply->transports[0].protocol;
823 }
824
825 /* close RTP connection if not choosen */
826 if (reply->transports[0].protocol != RTSP_PROTOCOL_RTP_UDP &&
827 (protocol_mask & (1 << RTSP_PROTOCOL_RTP_UDP))) {
8b1ab7bf
FB
828 url_close(rtsp_st->rtp_handle);
829 rtsp_st->rtp_handle = NULL;
1617ad97
FB
830 }
831
832 switch(reply->transports[0].protocol) {
833 case RTSP_PROTOCOL_RTP_TCP:
1617ad97
FB
834 rtsp_st->interleaved_min = reply->transports[0].interleaved_min;
835 rtsp_st->interleaved_max = reply->transports[0].interleaved_max;
836 break;
837
838 case RTSP_PROTOCOL_RTP_UDP:
839 {
840 char url[1024];
841
842 /* XXX: also use address if specified */
843 snprintf(url, sizeof(url), "rtp://%s:%d",
844 host, reply->transports[0].server_port_min);
8b1ab7bf 845 if (rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) {
1617ad97
FB
846 err = AVERROR_INVALIDDATA;
847 goto fail;
848 }
849 }
850 break;
851 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
852 {
853 char url[1024];
854 int ttl;
855
1617ad97
FB
856 ttl = reply->transports[0].ttl;
857 if (!ttl)
858 ttl = 16;
859 snprintf(url, sizeof(url), "rtp://%s:%d?multicast=1&ttl=%d",
860 host,
861 reply->transports[0].server_port_min,
862 ttl);
8b1ab7bf 863 if (url_open(&rtsp_st->rtp_handle, url, URL_RDONLY) < 0) {
1617ad97
FB
864 err = AVERROR_INVALIDDATA;
865 goto fail;
866 }
867 }
868 break;
869 }
8b1ab7bf
FB
870 /* open the RTP context */
871 st = NULL;
872 if (rtsp_st->stream_index >= 0)
873 st = s->streams[rtsp_st->stream_index];
874 if (!st)
875 s->ctx_flags |= AVFMTCTX_NOHEADER;
876 rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->sdp_payload_type);
877 if (!rtsp_st->rtp_ctx) {
878 err = AVERROR_NOMEM;
879 goto fail;
880 }
1617ad97
FB
881 }
882
883 /* use callback if available to extend setup */
884 if (ff_rtsp_callback) {
885 if (ff_rtsp_callback(RTSP_ACTION_CLIENT_SETUP, rt->session_id,
886 NULL, 0, rt->last_reply) < 0) {
887 err = AVERROR_INVALIDDATA;
888 goto fail;
889 }
890 }
891
1617ad97 892
ff762d6e
FB
893 rt->state = RTSP_STATE_IDLE;
894 rt->seek_timestamp = 0; /* default is to start stream at position
895 zero */
896 if (ap && ap->initial_pause) {
897 /* do not start immediately */
898 } else {
899 if (rtsp_read_play(s) < 0) {
900 err = AVERROR_INVALIDDATA;
1617ad97
FB
901 goto fail;
902 }
903 }
1617ad97
FB
904 return 0;
905 fail:
8b1ab7bf 906 rtsp_close_streams(rt);
1617ad97
FB
907 av_freep(&content);
908 url_close(rt->rtsp_hd);
909 return err;
910}
911
8b1ab7bf
FB
912static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
913 uint8_t *buf, int buf_size)
1617ad97
FB
914{
915 RTSPState *rt = s->priv_data;
b6892136 916 int id, len, i, ret;
1617ad97 917 RTSPStream *rtsp_st;
1617ad97 918
b6892136
FB
919#ifdef DEBUG_RTP_TCP
920 printf("tcp_read_packet:\n");
921#endif
1617ad97
FB
922 redo:
923 for(;;) {
b6892136
FB
924 ret = url_read(rt->rtsp_hd, buf, 1);
925#ifdef DEBUG_RTP_TCP
926 printf("ret=%d c=%02x [%c]\n", ret, buf[0], buf[0]);
927#endif
928 if (ret != 1)
8b1ab7bf 929 return -1;
b6892136 930 if (buf[0] == '$')
1617ad97
FB
931 break;
932 }
b6892136
FB
933 ret = url_read(rt->rtsp_hd, buf, 3);
934 if (ret != 3)
8b1ab7bf 935 return -1;
b6892136
FB
936 id = buf[0];
937 len = (buf[1] << 8) | buf[2];
938#ifdef DEBUG_RTP_TCP
939 printf("id=%d len=%d\n", id, len);
940#endif
8b1ab7bf 941 if (len > buf_size || len < 12)
1617ad97
FB
942 goto redo;
943 /* get the data */
b6892136
FB
944 ret = url_read(rt->rtsp_hd, buf, len);
945 if (ret != len)
8b1ab7bf 946 return -1;
b6892136 947
1617ad97 948 /* find the matching stream */
8b1ab7bf
FB
949 for(i = 0; i < rt->nb_rtsp_streams; i++) {
950 rtsp_st = rt->rtsp_streams[i];
b6892136
FB
951 if (id >= rtsp_st->interleaved_min &&
952 id <= rtsp_st->interleaved_max)
1617ad97
FB
953 goto found;
954 }
955 goto redo;
956 found:
8b1ab7bf
FB
957 *prtsp_st = rtsp_st;
958 return len;
1617ad97
FB
959}
960
8b1ab7bf
FB
961static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st,
962 uint8_t *buf, int buf_size)
1617ad97 963{
8b1ab7bf 964 RTSPState *rt = s->priv_data;
1617ad97
FB
965 RTSPStream *rtsp_st;
966 fd_set rfds;
967 int fd1, fd2, fd_max, n, i, ret;
1617ad97
FB
968 struct timeval tv;
969
970 for(;;) {
b7b8fc34 971 if (url_interrupt_cb())
8b1ab7bf 972 return -1;
1617ad97
FB
973 FD_ZERO(&rfds);
974 fd_max = -1;
8b1ab7bf
FB
975 for(i = 0; i < rt->nb_rtsp_streams; i++) {
976 rtsp_st = rt->rtsp_streams[i];
1617ad97 977 /* currently, we cannot probe RTCP handle because of blocking restrictions */
8b1ab7bf 978 rtp_get_file_handles(rtsp_st->rtp_handle, &fd1, &fd2);
1617ad97
FB
979 if (fd1 > fd_max)
980 fd_max = fd1;
981 FD_SET(fd1, &rfds);
982 }
1617ad97 983 tv.tv_sec = 0;
b7b8fc34 984 tv.tv_usec = 100 * 1000;
1617ad97
FB
985 n = select(fd_max + 1, &rfds, NULL, NULL, &tv);
986 if (n > 0) {
8b1ab7bf
FB
987 for(i = 0; i < rt->nb_rtsp_streams; i++) {
988 rtsp_st = rt->rtsp_streams[i];
989 rtp_get_file_handles(rtsp_st->rtp_handle, &fd1, &fd2);
1617ad97 990 if (FD_ISSET(fd1, &rfds)) {
8b1ab7bf
FB
991 ret = url_read(rtsp_st->rtp_handle, buf, buf_size);
992 if (ret > 0) {
993 *prtsp_st = rtsp_st;
1617ad97
FB
994 return ret;
995 }
996 }
997 }
998 }
999 }
1000}
1001
1002static int rtsp_read_packet(AVFormatContext *s,
1003 AVPacket *pkt)
1004{
1005 RTSPState *rt = s->priv_data;
8b1ab7bf
FB
1006 RTSPStream *rtsp_st;
1007 int ret, len;
1008 uint8_t buf[RTP_MAX_PACKET_LENGTH];
1009
1010 /* get next frames from the same RTP packet */
1011 if (rt->cur_rtp) {
1012 ret = rtp_parse_packet(rt->cur_rtp, pkt, NULL, 0);
1013 if (ret == 0) {
1014 rt->cur_rtp = NULL;
1015 return 0;
1016 } else if (ret == 1) {
1017 return 0;
1018 } else {
1019 rt->cur_rtp = NULL;
1020 }
1021 }
1617ad97 1022
8b1ab7bf
FB
1023 /* read next RTP packet */
1024 redo:
1617ad97
FB
1025 switch(rt->protocol) {
1026 default:
1027 case RTSP_PROTOCOL_RTP_TCP:
8b1ab7bf 1028 len = tcp_read_packet(s, &rtsp_st, buf, sizeof(buf));
1617ad97
FB
1029 break;
1030 case RTSP_PROTOCOL_RTP_UDP:
8b1ab7bf
FB
1031 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
1032 len = udp_read_packet(s, &rtsp_st, buf, sizeof(buf));
1617ad97
FB
1033 break;
1034 }
8b1ab7bf
FB
1035 if (len < 0)
1036 return AVERROR_IO;
1037 ret = rtp_parse_packet(rtsp_st->rtp_ctx, pkt, buf, len);
1038 if (ret < 0)
1039 goto redo;
1040 if (ret == 1) {
1041 /* more packets may follow, so we save the RTP context */
1042 rt->cur_rtp = rtsp_st->rtp_ctx;
1043 }
1044 return 0;
1617ad97
FB
1045}
1046
ff762d6e 1047static int rtsp_read_play(AVFormatContext *s)
b7b8fc34 1048{
ff762d6e 1049 RTSPState *rt = s->priv_data;
b7b8fc34
FB
1050 RTSPHeader reply1, *reply = &reply1;
1051 char cmd[1024];
1052
bc874dae 1053 av_log(s, AV_LOG_DEBUG, "hello state=%d\n", rt->state);
ff762d6e
FB
1054
1055 if (rt->state == RTSP_STATE_PAUSED) {
1056 snprintf(cmd, sizeof(cmd),
1057 "PLAY %s RTSP/1.0\r\n",
1058 s->filename);
1059 } else {
1060 snprintf(cmd, sizeof(cmd),
1061 "PLAY %s RTSP/1.0\r\n"
1062 "Range: npt=%0.3f-\r\n",
1063 s->filename,
1064 (double)rt->seek_timestamp / AV_TIME_BASE);
1065 }
b7b8fc34
FB
1066 rtsp_send_cmd(s, cmd, reply, NULL);
1067 if (reply->status_code != RTSP_STATUS_OK) {
1068 return -1;
1069 } else {
ff762d6e 1070 rt->state = RTSP_STATE_PLAYING;
b7b8fc34
FB
1071 return 0;
1072 }
1073}
1074
ff762d6e
FB
1075/* pause the stream */
1076static int rtsp_read_pause(AVFormatContext *s)
b7b8fc34 1077{
ff762d6e 1078 RTSPState *rt = s->priv_data;
b7b8fc34
FB
1079 RTSPHeader reply1, *reply = &reply1;
1080 char cmd[1024];
1081
b7b8fc34
FB
1082 rt = s->priv_data;
1083
ff762d6e
FB
1084 if (rt->state != RTSP_STATE_PLAYING)
1085 return 0;
1086
b7b8fc34 1087 snprintf(cmd, sizeof(cmd),
ff762d6e 1088 "PAUSE %s RTSP/1.0\r\n",
b7b8fc34
FB
1089 s->filename);
1090 rtsp_send_cmd(s, cmd, reply, NULL);
1091 if (reply->status_code != RTSP_STATUS_OK) {
1092 return -1;
1093 } else {
ff762d6e 1094 rt->state = RTSP_STATE_PAUSED;
b7b8fc34
FB
1095 return 0;
1096 }
1097}
1098
ff762d6e
FB
1099static int rtsp_read_seek(AVFormatContext *s, int stream_index,
1100 int64_t timestamp)
1101{
1102 RTSPState *rt = s->priv_data;
1103
1104 rt->seek_timestamp = timestamp;
1105 switch(rt->state) {
1106 default:
1107 case RTSP_STATE_IDLE:
1108 break;
1109 case RTSP_STATE_PLAYING:
1110 if (rtsp_read_play(s) != 0)
1111 return -1;
1112 break;
1113 case RTSP_STATE_PAUSED:
1114 rt->state = RTSP_STATE_IDLE;
1115 break;
1116 }
1117 return 0;
1118}
1119
1617ad97
FB
1120static int rtsp_read_close(AVFormatContext *s)
1121{
1122 RTSPState *rt = s->priv_data;
1617ad97 1123 RTSPHeader reply1, *reply = &reply1;
1617ad97
FB
1124 char cmd[1024];
1125
b6892136 1126#if 0
1617ad97
FB
1127 /* NOTE: it is valid to flush the buffer here */
1128 if (rt->protocol == RTSP_PROTOCOL_RTP_TCP) {
1129 url_fclose(&rt->rtsp_gb);
1130 }
b6892136 1131#endif
1617ad97 1132 snprintf(cmd, sizeof(cmd),
b6892136 1133 "TEARDOWN %s RTSP/1.0\r\n",
1617ad97
FB
1134 s->filename);
1135 rtsp_send_cmd(s, cmd, reply, NULL);
1136
1137 if (ff_rtsp_callback) {
1138 ff_rtsp_callback(RTSP_ACTION_CLIENT_TEARDOWN, rt->session_id,
1139 NULL, 0, NULL);
1140 }
1141
8b1ab7bf 1142 rtsp_close_streams(rt);
1617ad97
FB
1143 url_close(rt->rtsp_hd);
1144 return 0;
1145}
1146
b7b8fc34 1147AVInputFormat rtsp_demux = {
1617ad97
FB
1148 "rtsp",
1149 "RTSP input format",
1150 sizeof(RTSPState),
1151 rtsp_probe,
1152 rtsp_read_header,
1153 rtsp_read_packet,
1154 rtsp_read_close,
ff762d6e 1155 rtsp_read_seek,
bb76a117 1156 .flags = AVFMT_NOFILE,
ff762d6e
FB
1157 .read_play = rtsp_read_play,
1158 .read_pause = rtsp_read_pause,
1617ad97
FB
1159};
1160
cb1fdc61 1161static int sdp_probe(AVProbeData *p1)
93ced3e8 1162{
cb1fdc61
FB
1163 const char *p;
1164
1165 /* we look for a line beginning "c=IN IP4" */
1166 p = p1->buf;
1167 while (*p != '\0') {
1168 if (strstart(p, "c=IN IP4", NULL))
1169 return AVPROBE_SCORE_MAX / 2;
1170 p = strchr(p, '\n');
1171 if (!p)
1172 break;
1173 p++;
1174 if (*p == '\r')
1175 p++;
1176 }
93ced3e8
FB
1177 return 0;
1178}
1179
1180#define SDP_MAX_SIZE 8192
1181
1182static int sdp_read_header(AVFormatContext *s,
1183 AVFormatParameters *ap)
1184{
8b1ab7bf 1185 RTSPState *rt = s->priv_data;
93ced3e8
FB
1186 RTSPStream *rtsp_st;
1187 int size, i, err;
1188 char *content;
1189 char url[1024];
8b1ab7bf 1190 AVStream *st;
93ced3e8
FB
1191
1192 /* read the whole sdp file */
1193 /* XXX: better loading */
1194 content = av_malloc(SDP_MAX_SIZE);
1195 size = get_buffer(&s->pb, content, SDP_MAX_SIZE - 1);
1196 if (size <= 0) {
1197 av_free(content);
1198 return AVERROR_INVALIDDATA;
1199 }
1200 content[size] ='\0';
1201
1202 sdp_parse(s, content);
1203 av_free(content);
1204
1205 /* open each RTP stream */
8b1ab7bf
FB
1206 for(i=0;i<rt->nb_rtsp_streams;i++) {
1207 rtsp_st = rt->rtsp_streams[i];
93ced3e8
FB
1208
1209 snprintf(url, sizeof(url), "rtp://%s:%d?multicast=1&ttl=%d",
1210 inet_ntoa(rtsp_st->sdp_ip),
1211 rtsp_st->sdp_port,
1212 rtsp_st->sdp_ttl);
8b1ab7bf 1213 if (url_open(&rtsp_st->rtp_handle, url, URL_RDONLY) < 0) {
93ced3e8
FB
1214 err = AVERROR_INVALIDDATA;
1215 goto fail;
1216 }
8b1ab7bf
FB
1217 /* open the RTP context */
1218 st = NULL;
1219 if (rtsp_st->stream_index >= 0)
1220 st = s->streams[rtsp_st->stream_index];
1221 if (!st)
1222 s->ctx_flags |= AVFMTCTX_NOHEADER;
1223 rtsp_st->rtp_ctx = rtp_parse_open(s, st, rtsp_st->sdp_payload_type);
1224 if (!rtsp_st->rtp_ctx) {
1225 err = AVERROR_NOMEM;
1226 goto fail;
1227 }
93ced3e8
FB
1228 }
1229 return 0;
1230 fail:
8b1ab7bf 1231 rtsp_close_streams(rt);
93ced3e8
FB
1232 return err;
1233}
1234
1235static int sdp_read_packet(AVFormatContext *s,
1236 AVPacket *pkt)
1237{
8b1ab7bf 1238 return rtsp_read_packet(s, pkt);
93ced3e8
FB
1239}
1240
1241static int sdp_read_close(AVFormatContext *s)
1242{
8b1ab7bf
FB
1243 RTSPState *rt = s->priv_data;
1244 rtsp_close_streams(rt);
93ced3e8
FB
1245 return 0;
1246}
1247
1248
1249static AVInputFormat sdp_demux = {
1250 "sdp",
1251 "SDP",
1252 sizeof(RTSPState),
1253 sdp_probe,
1254 sdp_read_header,
1255 sdp_read_packet,
1256 sdp_read_close,
1257};
1258
1259
1617ad97
FB
1260/* dummy redirector format (used directly in av_open_input_file now) */
1261static int redir_probe(AVProbeData *pd)
1262{
1263 const char *p;
1264 p = pd->buf;
1265 while (redir_isspace(*p))
1266 p++;
1267 if (strstart(p, "http://", NULL) ||
1268 strstart(p, "rtsp://", NULL))
1269 return AVPROBE_SCORE_MAX;
1270 return 0;
1271}
1272
1273/* called from utils.c */
1274int redir_open(AVFormatContext **ic_ptr, ByteIOContext *f)
1275{
1276 char buf[4096], *q;
1277 int c;
1278 AVFormatContext *ic = NULL;
1279
1280 /* parse each URL and try to open it */
1281 c = url_fgetc(f);
1282 while (c != URL_EOF) {
1283 /* skip spaces */
1284 for(;;) {
1285 if (!redir_isspace(c))
1286 break;
1287 c = url_fgetc(f);
1288 }
1289 if (c == URL_EOF)
1290 break;
1291 /* record url */
1292 q = buf;
1293 for(;;) {
1294 if (c == URL_EOF || redir_isspace(c))
1295 break;
1296 if ((q - buf) < sizeof(buf) - 1)
1297 *q++ = c;
1298 c = url_fgetc(f);
1299 }
1300 *q = '\0';
1301 //printf("URL='%s'\n", buf);
1302 /* try to open the media file */
1303 if (av_open_input_file(&ic, buf, NULL, 0, NULL) == 0)
1304 break;
1305 }
1306 *ic_ptr = ic;
1307 if (!ic)
1308 return AVERROR_IO;
1309 else
1310 return 0;
1311}
1312
1313AVInputFormat redir_demux = {
1314 "redir",
1315 "Redirector format",
1316 0,
1317 redir_probe,
1318 NULL,
1319 NULL,
1320 NULL,
1321};
1322
1323int rtsp_init(void)
1324{
1325 av_register_input_format(&rtsp_demux);
1326 av_register_input_format(&redir_demux);
93ced3e8 1327 av_register_input_format(&sdp_demux);
1617ad97
FB
1328 return 0;
1329}