Commit | Line | Data |
---|---|---|
1617ad97 | 1 | /* |
93ced3e8 | 2 | * RTSP/SDP client |
406792e7 | 3 | * Copyright (c) 2002 Fabrice Bellard |
1617ad97 | 4 | * |
b78e7197 DB |
5 | * This file is part of FFmpeg. |
6 | * | |
7 | * FFmpeg 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 | * |
b78e7197 | 12 | * FFmpeg 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 | |
b78e7197 | 18 | * License along with FFmpeg; 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 | |
7246177d AJ |
22 | /* needed by inet_aton() */ |
23 | #define _SVID_SOURCE | |
24 | ||
f9337897 | 25 | #include "libavutil/base64.h" |
245976da | 26 | #include "libavutil/avstring.h" |
6a5d31ac | 27 | #include "libavutil/intreadwrite.h" |
1617ad97 FB |
28 | #include "avformat.h" |
29 | ||
db0ed93e | 30 | #include <sys/time.h> |
b250f9c6 | 31 | #if HAVE_SYS_SELECT_H |
933bd8e2 | 32 | #include <sys/select.h> |
6ad1c9c9 | 33 | #endif |
ea452b54 | 34 | #include <strings.h> |
42572ef5 | 35 | #include "network.h" |
c971ff19 | 36 | #include "rtsp.h" |
1617ad97 | 37 | |
302879cb | 38 | #include "rtpdec.h" |
e9dea59f | 39 | #include "rdt.h" |
f65919af MS |
40 | #include "rtpdec_asf.h" |
41 | #include "rtpdec_vorbis.h" | |
4934884a | 42 | |
1617ad97 | 43 | //#define DEBUG |
b6892136 | 44 | //#define DEBUG_RTP_TCP |
1617ad97 | 45 | |
c482500f | 46 | #if LIBAVFORMAT_VERSION_INT < (53 << 16) |
90abbdba | 47 | int rtsp_default_protocols = (1 << RTSP_LOWER_TRANSPORT_UDP); |
c482500f | 48 | #endif |
85fb7b34 | 49 | |
1ef36a70 | 50 | #define SPACE_CHARS " \t\r\n" |
da1e126e RB |
51 | /* we use memchr() instead of strchr() here because strchr() will return |
52 | * the terminating '\0' of SPACE_CHARS instead of NULL if c is '\0'. */ | |
53 | #define redir_isspace(c) memchr(SPACE_CHARS, c, 4) | |
1617ad97 FB |
54 | static void skip_spaces(const char **pp) |
55 | { | |
56 | const char *p; | |
57 | p = *pp; | |
58 | while (redir_isspace(*p)) | |
59 | p++; | |
60 | *pp = p; | |
61 | } | |
62 | ||
1ef36a70 RB |
63 | static void get_word_until_chars(char *buf, int buf_size, |
64 | const char *sep, const char **pp) | |
1617ad97 FB |
65 | { |
66 | const char *p; | |
67 | char *q; | |
68 | ||
69 | p = *pp; | |
70 | skip_spaces(&p); | |
71 | q = buf; | |
72 | while (!strchr(sep, *p) && *p != '\0') { | |
73 | if ((q - buf) < buf_size - 1) | |
74 | *q++ = *p; | |
75 | p++; | |
76 | } | |
77 | if (buf_size > 0) | |
78 | *q = '\0'; | |
79 | *pp = p; | |
80 | } | |
81 | ||
1ef36a70 RB |
82 | static void get_word_sep(char *buf, int buf_size, const char *sep, |
83 | const char **pp) | |
1617ad97 | 84 | { |
1ef36a70 RB |
85 | if (**pp == '/') (*pp)++; |
86 | get_word_until_chars(buf, buf_size, sep, pp); | |
87 | } | |
1617ad97 | 88 | |
1ef36a70 RB |
89 | static void get_word(char *buf, int buf_size, const char **pp) |
90 | { | |
91 | get_word_until_chars(buf, buf_size, SPACE_CHARS, pp); | |
1617ad97 FB |
92 | } |
93 | ||
c8965800 | 94 | /* parse the rtpmap description: <codec_name>/<clock_rate>[/<other params>] */ |
8f3c87f3 RB |
95 | static int sdp_parse_rtpmap(AVFormatContext *s, |
96 | AVCodecContext *codec, RTSPStream *rtsp_st, | |
c8965800 | 97 | int payload_type, const char *p) |
93ced3e8 FB |
98 | { |
99 | char buf[256]; | |
d1ccf0e0 RD |
100 | int i; |
101 | AVCodec *c; | |
7b49ce2e | 102 | const char *c_name; |
93ced3e8 | 103 | |
d1ccf0e0 | 104 | /* Loop into AVRtpDynamicPayloadTypes[] and AVRtpPayloadTypes[] and |
9d50d396 RB |
105 | * see if we can handle this kind of payload. |
106 | * The space should normally not be there but some Real streams or | |
107 | * particular servers ("RealServer Version 6.1.3.970", see issue 1658) | |
108 | * have a trailing space. */ | |
109 | get_word_sep(buf, sizeof(buf), "/ ", &p); | |
d1ccf0e0 | 110 | if (payload_type >= RTP_PT_PRIVATE) { |
c8965800 RB |
111 | RTPDynamicProtocolHandler *handler; |
112 | for (handler = RTPFirstDynamicPayloadHandler; | |
113 | handler; handler = handler->next) { | |
114 | if (!strcasecmp(buf, handler->enc_name) && | |
115 | codec->codec_type == handler->codec_type) { | |
116 | codec->codec_id = handler->codec_id; | |
117 | rtsp_st->dynamic_handler = handler; | |
118 | if (handler->open) | |
119 | rtsp_st->dynamic_protocol_context = handler->open(); | |
d1ccf0e0 RD |
120 | break; |
121 | } | |
4934884a | 122 | } |
93ced3e8 | 123 | } else { |
c8965800 RB |
124 | /* We are in a standard case |
125 | * (from http://www.iana.org/assignments/rtp-parameters). */ | |
d1ccf0e0 | 126 | /* search into AVRtpPayloadTypes[] */ |
7ed19d7f | 127 | codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type); |
d1ccf0e0 RD |
128 | } |
129 | ||
130 | c = avcodec_find_decoder(codec->codec_id); | |
131 | if (c && c->name) | |
7b49ce2e | 132 | c_name = c->name; |
d1ccf0e0 | 133 | else |
170870b7 | 134 | c_name = "(null)"; |
d1ccf0e0 | 135 | |
7515ed0c RB |
136 | get_word_sep(buf, sizeof(buf), "/", &p); |
137 | i = atoi(buf); | |
138 | switch (codec->codec_type) { | |
139 | case CODEC_TYPE_AUDIO: | |
140 | av_log(s, AV_LOG_DEBUG, "audio codec set to: %s\n", c_name); | |
141 | codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE; | |
142 | codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS; | |
143 | if (i > 0) { | |
144 | codec->sample_rate = i; | |
145 | get_word_sep(buf, sizeof(buf), "/", &p); | |
146 | i = atoi(buf); | |
147 | if (i > 0) | |
148 | codec->channels = i; | |
149 | // TODO: there is a bug here; if it is a mono stream, and | |
150 | // less than 22000Hz, faad upconverts to stereo and twice | |
151 | // the frequency. No problem, but the sample rate is being | |
152 | // set here by the sdp line. Patch on its way. (rdm) | |
d1ccf0e0 | 153 | } |
7515ed0c RB |
154 | av_log(s, AV_LOG_DEBUG, "audio samplerate set to: %i\n", |
155 | codec->sample_rate); | |
156 | av_log(s, AV_LOG_DEBUG, "audio channels set to: %i\n", | |
157 | codec->channels); | |
158 | break; | |
159 | case CODEC_TYPE_VIDEO: | |
160 | av_log(s, AV_LOG_DEBUG, "video codec set to: %s\n", c_name); | |
161 | break; | |
162 | default: | |
163 | break; | |
164 | } | |
165 | return 0; | |
93ced3e8 FB |
166 | } |
167 | ||
c8965800 | 168 | /* return the length and optionally the data */ |
93ced3e8 FB |
169 | static int hex_to_data(uint8_t *data, const char *p) |
170 | { | |
171 | int c, len, v; | |
172 | ||
173 | len = 0; | |
174 | v = 1; | |
c8965800 | 175 | for (;;) { |
93ced3e8 | 176 | skip_spaces(&p); |
6a8c8b36 | 177 | if (*p == '\0') |
93ced3e8 | 178 | break; |
c8965800 | 179 | c = toupper((unsigned char) *p++); |
93ced3e8 FB |
180 | if (c >= '0' && c <= '9') |
181 | c = c - '0'; | |
182 | else if (c >= 'A' && c <= 'F') | |
183 | c = c - 'A' + 10; | |
184 | else | |
185 | break; | |
186 | v = (v << 4) | c; | |
187 | if (v & 0x100) { | |
188 | if (data) | |
189 | data[len] = v; | |
190 | len++; | |
191 | v = 1; | |
192 | } | |
193 | } | |
194 | return len; | |
195 | } | |
196 | ||
e6327fba RB |
197 | static void sdp_parse_fmtp_config(AVCodecContext * codec, void *ctx, |
198 | char *attr, char *value) | |
d1ccf0e0 RD |
199 | { |
200 | switch (codec->codec_id) { | |
c8965800 RB |
201 | case CODEC_ID_MPEG4: |
202 | case CODEC_ID_AAC: | |
203 | if (!strcmp(attr, "config")) { | |
204 | /* decode the hexa encoded parameter */ | |
205 | int len = hex_to_data(NULL, value); | |
206 | if (codec->extradata) | |
207 | av_free(codec->extradata); | |
208 | codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); | |
209 | if (!codec->extradata) | |
210 | return; | |
211 | codec->extradata_size = len; | |
212 | hex_to_data(codec->extradata, value); | |
213 | } | |
214 | break; | |
215 | case CODEC_ID_VORBIS: | |
216 | ff_vorbis_parse_fmtp_config(codec, ctx, attr, value); | |
217 | break; | |
218 | default: | |
219 | break; | |
d1ccf0e0 RD |
220 | } |
221 | return; | |
222 | } | |
223 | ||
644e7acb | 224 | typedef struct { |
7b49ce2e | 225 | const char *str; |
c8965800 RB |
226 | uint16_t type; |
227 | uint32_t offset; | |
644e7acb | 228 | } AttrNameMap; |
d1ccf0e0 RD |
229 | |
230 | /* All known fmtp parmeters and the corresping RTPAttrTypeEnum */ | |
231 | #define ATTR_NAME_TYPE_INT 0 | |
232 | #define ATTR_NAME_TYPE_STR 1 | |
644e7acb | 233 | static const AttrNameMap attr_names[]= |
d1ccf0e0 | 234 | { |
c8965800 RB |
235 | { "SizeLength", ATTR_NAME_TYPE_INT, |
236 | offsetof(RTPPayloadData, sizelength) }, | |
237 | { "IndexLength", ATTR_NAME_TYPE_INT, | |
238 | offsetof(RTPPayloadData, indexlength) }, | |
239 | { "IndexDeltaLength", ATTR_NAME_TYPE_INT, | |
240 | offsetof(RTPPayloadData, indexdeltalength) }, | |
241 | { "profile-level-id", ATTR_NAME_TYPE_INT, | |
242 | offsetof(RTPPayloadData, profile_level_id) }, | |
243 | { "StreamType", ATTR_NAME_TYPE_INT, | |
244 | offsetof(RTPPayloadData, streamtype) }, | |
245 | { "mode", ATTR_NAME_TYPE_STR, | |
246 | offsetof(RTPPayloadData, mode) }, | |
247 | { NULL, -1, -1 }, | |
d1ccf0e0 RD |
248 | }; |
249 | ||
c8965800 RB |
250 | /* parse the attribute line from the fmtp a line of an sdp resonse. This |
251 | * is broken out as a function because it is used in rtp_h264.c, which is | |
252 | * forthcoming. */ | |
3307e6ea | 253 | int ff_rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, |
93993933 | 254 | char *value, int value_size) |
d0deedcb RM |
255 | { |
256 | skip_spaces(p); | |
c8965800 | 257 | if (**p) { |
d0deedcb RM |
258 | get_word_sep(attr, attr_size, "=", p); |
259 | if (**p == '=') | |
260 | (*p)++; | |
261 | get_word_sep(value, value_size, ";", p); | |
262 | if (**p == ';') | |
263 | (*p)++; | |
264 | return 1; | |
265 | } | |
266 | return 0; | |
267 | } | |
268 | ||
d1ccf0e0 RD |
269 | /* parse a SDP line and save stream attributes */ |
270 | static void sdp_parse_fmtp(AVStream *st, const char *p) | |
93ced3e8 FB |
271 | { |
272 | char attr[256]; | |
373afbaf RB |
273 | /* Vorbis setup headers can be up to 12KB and are sent base64 |
274 | * encoded, giving a 12KB * (4/3) = 16KB FMTP line. */ | |
275 | char value[16384]; | |
d1ccf0e0 | 276 | int i; |
d1ccf0e0 | 277 | RTSPStream *rtsp_st = st->priv_data; |
01f4895c | 278 | AVCodecContext *codec = st->codec; |
be73a544 | 279 | RTPPayloadData *rtp_payload_data = &rtsp_st->rtp_payload_data; |
93ced3e8 FB |
280 | |
281 | /* loop on each attribute */ | |
3307e6ea | 282 | while (ff_rtsp_next_attr_and_value(&p, attr, sizeof(attr), |
93993933 | 283 | value, sizeof(value))) { |
c8965800 RB |
284 | /* grab the codec extra_data from the config parameter of the fmtp |
285 | * line */ | |
e6327fba RB |
286 | sdp_parse_fmtp_config(codec, rtsp_st->dynamic_protocol_context, |
287 | attr, value); | |
d1ccf0e0 RD |
288 | /* Looking for a known attribute */ |
289 | for (i = 0; attr_names[i].str; ++i) { | |
290 | if (!strcasecmp(attr, attr_names[i].str)) { | |
c8965800 RB |
291 | if (attr_names[i].type == ATTR_NAME_TYPE_INT) { |
292 | *(int *)((char *)rtp_payload_data + | |
293 | attr_names[i].offset) = atoi(value); | |
294 | } else if (attr_names[i].type == ATTR_NAME_TYPE_STR) | |
295 | *(char **)((char *)rtp_payload_data + | |
296 | attr_names[i].offset) = av_strdup(value); | |
bb270c08 | 297 | } |
93ced3e8 | 298 | } |
93ced3e8 FB |
299 | } |
300 | } | |
301 | ||
debe86bf | 302 | /** Parse a string p in the form of Range:npt=xx-xx, and determine the start |
31693e00 RM |
303 | * and end time. |
304 | * Used for seeking in the rtp stream. | |
305 | */ | |
306 | static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end) | |
307 | { | |
308 | char buf[256]; | |
309 | ||
310 | skip_spaces(&p); | |
f7d78f36 | 311 | if (!av_stristart(p, "npt=", &p)) |
31693e00 RM |
312 | return; |
313 | ||
314 | *start = AV_NOPTS_VALUE; | |
315 | *end = AV_NOPTS_VALUE; | |
316 | ||
317 | get_word_sep(buf, sizeof(buf), "-", &p); | |
318 | *start = parse_date(buf, 1); | |
319 | if (*p == '-') { | |
320 | p++; | |
321 | get_word_sep(buf, sizeof(buf), "-", &p); | |
322 | *end = parse_date(buf, 1); | |
323 | } | |
324 | // av_log(NULL, AV_LOG_DEBUG, "Range Start: %lld\n", *start); | |
325 | // av_log(NULL, AV_LOG_DEBUG, "Range End: %lld\n", *end); | |
326 | } | |
327 | ||
93ced3e8 FB |
328 | typedef struct SDPParseState { |
329 | /* SDP only */ | |
330 | struct in_addr default_ip; | |
c8965800 RB |
331 | int default_ttl; |
332 | int skip_media; ///< set if an unknown m= line occurs | |
93ced3e8 FB |
333 | } SDPParseState; |
334 | ||
335 | static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1, | |
1617ad97 FB |
336 | int letter, const char *buf) |
337 | { | |
8b1ab7bf | 338 | RTSPState *rt = s->priv_data; |
1617ad97 FB |
339 | char buf1[64], st_type[64]; |
340 | const char *p; | |
fb65d2ca DP |
341 | enum CodecType codec_type; |
342 | int payload_type, i; | |
1617ad97 FB |
343 | AVStream *st; |
344 | RTSPStream *rtsp_st; | |
93ced3e8 FB |
345 | struct in_addr sdp_ip; |
346 | int ttl; | |
347 | ||
67c9cd69 | 348 | dprintf(s, "sdp: %c='%s'\n", letter, buf); |
1617ad97 FB |
349 | |
350 | p = buf; | |
cb760a47 RB |
351 | if (s1->skip_media && letter != 'm') |
352 | return; | |
c8965800 | 353 | switch (letter) { |
93ced3e8 FB |
354 | case 'c': |
355 | get_word(buf1, sizeof(buf1), &p); | |
356 | if (strcmp(buf1, "IN") != 0) | |
357 | return; | |
358 | get_word(buf1, sizeof(buf1), &p); | |
359 | if (strcmp(buf1, "IP4") != 0) | |
360 | return; | |
361 | get_word_sep(buf1, sizeof(buf1), "/", &p); | |
362 | if (inet_aton(buf1, &sdp_ip) == 0) | |
363 | return; | |
364 | ttl = 16; | |
365 | if (*p == '/') { | |
366 | p++; | |
367 | get_word_sep(buf1, sizeof(buf1), "/", &p); | |
368 | ttl = atoi(buf1); | |
369 | } | |
370 | if (s->nb_streams == 0) { | |
371 | s1->default_ip = sdp_ip; | |
372 | s1->default_ttl = ttl; | |
373 | } else { | |
374 | st = s->streams[s->nb_streams - 1]; | |
375 | rtsp_st = st->priv_data; | |
376 | rtsp_st->sdp_ip = sdp_ip; | |
377 | rtsp_st->sdp_ttl = ttl; | |
378 | } | |
379 | break; | |
1617ad97 | 380 | case 's': |
da61e413 | 381 | av_metadata_set(&s->metadata, "title", p); |
1617ad97 FB |
382 | break; |
383 | case 'i': | |
384 | if (s->nb_streams == 0) { | |
da61e413 | 385 | av_metadata_set(&s->metadata, "comment", p); |
1617ad97 FB |
386 | break; |
387 | } | |
388 | break; | |
389 | case 'm': | |
390 | /* new stream */ | |
cb760a47 | 391 | s1->skip_media = 0; |
1617ad97 FB |
392 | get_word(st_type, sizeof(st_type), &p); |
393 | if (!strcmp(st_type, "audio")) { | |
394 | codec_type = CODEC_TYPE_AUDIO; | |
395 | } else if (!strcmp(st_type, "video")) { | |
396 | codec_type = CODEC_TYPE_VIDEO; | |
090438cc RB |
397 | } else if (!strcmp(st_type, "application")) { |
398 | codec_type = CODEC_TYPE_DATA; | |
1617ad97 | 399 | } else { |
cb760a47 | 400 | s1->skip_media = 1; |
1617ad97 FB |
401 | return; |
402 | } | |
1617ad97 FB |
403 | rtsp_st = av_mallocz(sizeof(RTSPStream)); |
404 | if (!rtsp_st) | |
405 | return; | |
8b1ab7bf FB |
406 | rtsp_st->stream_index = -1; |
407 | dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st); | |
93ced3e8 FB |
408 | |
409 | rtsp_st->sdp_ip = s1->default_ip; | |
410 | rtsp_st->sdp_ttl = s1->default_ttl; | |
411 | ||
93ced3e8 FB |
412 | get_word(buf1, sizeof(buf1), &p); /* port */ |
413 | rtsp_st->sdp_port = atoi(buf1); | |
414 | ||
415 | get_word(buf1, sizeof(buf1), &p); /* protocol (ignored) */ | |
115329f1 | 416 | |
93ced3e8 FB |
417 | /* XXX: handle list of formats */ |
418 | get_word(buf1, sizeof(buf1), &p); /* format list */ | |
419 | rtsp_st->sdp_payload_type = atoi(buf1); | |
93ced3e8 | 420 | |
7ed19d7f | 421 | if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) { |
8b1ab7bf FB |
422 | /* no corresponding stream */ |
423 | } else { | |
424 | st = av_new_stream(s, 0); | |
425 | if (!st) | |
426 | return; | |
427 | st->priv_data = rtsp_st; | |
428 | rtsp_st->stream_index = st->index; | |
01f4895c | 429 | st->codec->codec_type = codec_type; |
d1ccf0e0 | 430 | if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) { |
8b1ab7bf | 431 | /* if standard payload type, we can find the codec right now */ |
bf6d9818 | 432 | ff_rtp_get_codec_info(st->codec, rtsp_st->sdp_payload_type); |
8b1ab7bf FB |
433 | } |
434 | } | |
1617ad97 | 435 | /* put a default control url */ |
00eb13e0 | 436 | av_strlcpy(rtsp_st->control_url, rt->control_uri, |
c8965800 | 437 | sizeof(rtsp_st->control_url)); |
1617ad97 FB |
438 | break; |
439 | case 'a': | |
00eb13e0 AS |
440 | if (av_strstart(p, "control:", &p)) { |
441 | if (s->nb_streams == 0) { | |
442 | if (!strncmp(p, "rtsp://", 7)) | |
443 | av_strlcpy(rt->control_uri, p, | |
444 | sizeof(rt->control_uri)); | |
445 | } else { | |
1617ad97 FB |
446 | char proto[32]; |
447 | /* get the control url */ | |
448 | st = s->streams[s->nb_streams - 1]; | |
449 | rtsp_st = st->priv_data; | |
115329f1 | 450 | |
1617ad97 | 451 | /* XXX: may need to add full url resolution */ |
c8965800 RB |
452 | url_split(proto, sizeof(proto), NULL, 0, NULL, 0, |
453 | NULL, NULL, 0, p); | |
1617ad97 FB |
454 | if (proto[0] == '\0') { |
455 | /* relative control URL */ | |
00eb13e0 | 456 | if (rtsp_st->control_url[strlen(rtsp_st->control_url)-1]!='/') |
c8965800 RB |
457 | av_strlcat(rtsp_st->control_url, "/", |
458 | sizeof(rtsp_st->control_url)); | |
459 | av_strlcat(rtsp_st->control_url, p, | |
460 | sizeof(rtsp_st->control_url)); | |
461 | } else | |
462 | av_strlcpy(rtsp_st->control_url, p, | |
463 | sizeof(rtsp_st->control_url)); | |
00eb13e0 | 464 | } |
83d14c85 | 465 | } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) { |
93ced3e8 | 466 | /* NOTE: rtpmap is only supported AFTER the 'm=' tag */ |
115329f1 | 467 | get_word(buf1, sizeof(buf1), &p); |
93ced3e8 | 468 | payload_type = atoi(buf1); |
83d14c85 | 469 | st = s->streams[s->nb_streams - 1]; |
ff16f551 | 470 | rtsp_st = st->priv_data; |
8f3c87f3 | 471 | sdp_parse_rtpmap(s, st->codec, rtsp_st, payload_type, p); |
f7d78f36 | 472 | } else if (av_strstart(p, "fmtp:", &p)) { |
93ced3e8 | 473 | /* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */ |
115329f1 | 474 | get_word(buf1, sizeof(buf1), &p); |
93ced3e8 | 475 | payload_type = atoi(buf1); |
c8965800 RB |
476 | for (i = 0; i < s->nb_streams; i++) { |
477 | st = s->streams[i]; | |
93ced3e8 FB |
478 | rtsp_st = st->priv_data; |
479 | if (rtsp_st->sdp_payload_type == payload_type) { | |
c8965800 RB |
480 | if (!(rtsp_st->dynamic_handler && |
481 | rtsp_st->dynamic_handler->parse_sdp_a_line && | |
482 | rtsp_st->dynamic_handler->parse_sdp_a_line(s, | |
483 | i, rtsp_st->dynamic_protocol_context, buf))) | |
ed787542 | 484 | sdp_parse_fmtp(st, p); |
93ced3e8 FB |
485 | } |
486 | } | |
c8965800 | 487 | } else if (av_strstart(p, "framesize:", &p)) { |
d0deedcb RM |
488 | // let dynamic protocol handlers have a stab at the line. |
489 | get_word(buf1, sizeof(buf1), &p); | |
490 | payload_type = atoi(buf1); | |
c8965800 RB |
491 | for (i = 0; i < s->nb_streams; i++) { |
492 | st = s->streams[i]; | |
d0deedcb | 493 | rtsp_st = st->priv_data; |
c8965800 RB |
494 | if (rtsp_st->sdp_payload_type == payload_type && |
495 | rtsp_st->dynamic_handler && | |
496 | rtsp_st->dynamic_handler->parse_sdp_a_line) | |
497 | rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, | |
498 | rtsp_st->dynamic_protocol_context, buf); | |
d0deedcb | 499 | } |
c8965800 | 500 | } else if (av_strstart(p, "range:", &p)) { |
31693e00 RM |
501 | int64_t start, end; |
502 | ||
503 | // this is so that seeking on a streamed file can work. | |
504 | rtsp_parse_range_npt(p, &start, &end); | |
c8965800 RB |
505 | s->start_time = start; |
506 | /* AV_NOPTS_VALUE means live broadcast (and can't seek) */ | |
507 | s->duration = (end == AV_NOPTS_VALUE) ? | |
508 | AV_NOPTS_VALUE : end - start; | |
119b4668 RB |
509 | } else if (av_strstart(p, "IsRealDataType:integer;",&p)) { |
510 | if (atoi(p) == 1) | |
511 | rt->transport = RTSP_TRANSPORT_RDT; | |
1a30d541 RB |
512 | } else { |
513 | if (rt->server_type == RTSP_SERVER_WMS) | |
514 | ff_wms_parse_sdp_a_line(s, p); | |
515 | if (s->nb_streams > 0) { | |
c4a3d032 RB |
516 | if (rt->server_type == RTSP_SERVER_REAL) |
517 | ff_real_parse_sdp_a_line(s, s->nb_streams - 1, p); | |
518 | ||
519 | rtsp_st = s->streams[s->nb_streams - 1]->priv_data; | |
520 | if (rtsp_st->dynamic_handler && | |
521 | rtsp_st->dynamic_handler->parse_sdp_a_line) | |
c8965800 RB |
522 | rtsp_st->dynamic_handler->parse_sdp_a_line(s, |
523 | s->nb_streams - 1, | |
c4a3d032 | 524 | rtsp_st->dynamic_protocol_context, buf); |
1a30d541 | 525 | } |
1617ad97 FB |
526 | } |
527 | break; | |
528 | } | |
529 | } | |
530 | ||
5c91a675 | 531 | static int sdp_parse(AVFormatContext *s, const char *content) |
1617ad97 FB |
532 | { |
533 | const char *p; | |
534 | int letter; | |
9211bcdd RB |
535 | /* Some SDP lines, particularly for Realmedia or ASF RTSP streams, |
536 | * contain long SDP lines containing complete ASF Headers (several | |
537 | * kB) or arrays of MDPR (RM stream descriptor) headers plus | |
538 | * "rulebooks" describing their properties. Therefore, the SDP line | |
373afbaf RB |
539 | * buffer is large. |
540 | * | |
541 | * The Vorbis FMTP line can be up to 16KB - see sdp_parse_fmtp. */ | |
542 | char buf[16384], *q; | |
93ced3e8 | 543 | SDPParseState sdp_parse_state, *s1 = &sdp_parse_state; |
115329f1 | 544 | |
93ced3e8 | 545 | memset(s1, 0, sizeof(SDPParseState)); |
1617ad97 | 546 | p = content; |
c8965800 | 547 | for (;;) { |
1617ad97 FB |
548 | skip_spaces(&p); |
549 | letter = *p; | |
550 | if (letter == '\0') | |
551 | break; | |
552 | p++; | |
553 | if (*p != '=') | |
554 | goto next_line; | |
555 | p++; | |
556 | /* get the content */ | |
557 | q = buf; | |
b6892136 | 558 | while (*p != '\n' && *p != '\r' && *p != '\0') { |
1617ad97 FB |
559 | if ((q - buf) < sizeof(buf) - 1) |
560 | *q++ = *p; | |
561 | p++; | |
562 | } | |
563 | *q = '\0'; | |
93ced3e8 | 564 | sdp_parse_line(s, s1, letter, buf); |
1617ad97 FB |
565 | next_line: |
566 | while (*p != '\n' && *p != '\0') | |
567 | p++; | |
568 | if (*p == '\n') | |
569 | p++; | |
570 | } | |
571 | return 0; | |
572 | } | |
573 | ||
1ced9da3 | 574 | /* close and free RTSP streams */ |
3307e6ea | 575 | void ff_rtsp_close_streams(AVFormatContext *s) |
1ced9da3 | 576 | { |
52aa4338 | 577 | RTSPState *rt = s->priv_data; |
1ced9da3 LA |
578 | int i; |
579 | RTSPStream *rtsp_st; | |
580 | ||
c8965800 | 581 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
1ced9da3 LA |
582 | rtsp_st = rt->rtsp_streams[i]; |
583 | if (rtsp_st) { | |
584 | if (rtsp_st->transport_priv) { | |
fd450a51 MS |
585 | if (s->oformat) { |
586 | AVFormatContext *rtpctx = rtsp_st->transport_priv; | |
587 | av_write_trailer(rtpctx); | |
588 | url_fclose(rtpctx->pb); | |
f86f6656 MS |
589 | av_metadata_free(&rtpctx->streams[0]->metadata); |
590 | av_metadata_free(&rtpctx->metadata); | |
fd450a51 MS |
591 | av_free(rtpctx->streams[0]); |
592 | av_free(rtpctx); | |
593 | } else if (rt->transport == RTSP_TRANSPORT_RDT) | |
1ced9da3 LA |
594 | ff_rdt_parse_close(rtsp_st->transport_priv); |
595 | else | |
596 | rtp_parse_close(rtsp_st->transport_priv); | |
597 | } | |
598 | if (rtsp_st->rtp_handle) | |
599 | url_close(rtsp_st->rtp_handle); | |
600 | if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context) | |
c8965800 RB |
601 | rtsp_st->dynamic_handler->close( |
602 | rtsp_st->dynamic_protocol_context); | |
1ced9da3 LA |
603 | } |
604 | } | |
605 | av_free(rt->rtsp_streams); | |
606 | if (rt->asf_ctx) { | |
607 | av_close_input_stream (rt->asf_ctx); | |
608 | rt->asf_ctx = NULL; | |
609 | } | |
610 | av_freep(&rt->auth_b64); | |
611 | } | |
612 | ||
fd450a51 MS |
613 | static void *rtsp_rtp_mux_open(AVFormatContext *s, AVStream *st, URLContext *handle) { |
614 | AVFormatContext *rtpctx; | |
615 | int ret; | |
616 | AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL); | |
617 | ||
618 | if (!rtp_format) | |
619 | return NULL; | |
620 | ||
621 | /* Allocate an AVFormatContext for each output stream */ | |
622 | rtpctx = avformat_alloc_context(); | |
623 | if (!rtpctx) | |
624 | return NULL; | |
625 | ||
626 | rtpctx->oformat = rtp_format; | |
627 | if (!av_new_stream(rtpctx, 0)) { | |
628 | av_free(rtpctx); | |
629 | return NULL; | |
630 | } | |
631 | /* Copy the max delay setting; the rtp muxer reads this. */ | |
632 | rtpctx->max_delay = s->max_delay; | |
633 | /* Copy other stream parameters. */ | |
634 | rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio; | |
635 | ||
636 | /* Remove the local codec, link to the original codec | |
637 | * context instead, to give the rtp muxer access to | |
638 | * codec parameters. */ | |
639 | av_free(rtpctx->streams[0]->codec); | |
640 | rtpctx->streams[0]->codec = st->codec; | |
641 | ||
642 | url_fdopen(&rtpctx->pb, handle); | |
643 | ret = av_write_header(rtpctx); | |
644 | ||
645 | if (ret) { | |
646 | url_fclose(rtpctx->pb); | |
647 | av_free(rtpctx->streams[0]); | |
648 | av_free(rtpctx); | |
649 | return NULL; | |
650 | } | |
651 | ||
652 | /* Copy the RTP AVStream timebase back to the original AVStream */ | |
653 | st->time_base = rtpctx->streams[0]->time_base; | |
654 | return rtpctx; | |
655 | } | |
656 | ||
c8965800 | 657 | static int rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st) |
1ced9da3 LA |
658 | { |
659 | RTSPState *rt = s->priv_data; | |
660 | AVStream *st = NULL; | |
661 | ||
662 | /* open the RTP context */ | |
663 | if (rtsp_st->stream_index >= 0) | |
664 | st = s->streams[rtsp_st->stream_index]; | |
665 | if (!st) | |
666 | s->ctx_flags |= AVFMTCTX_NOHEADER; | |
667 | ||
fd450a51 MS |
668 | if (s->oformat) { |
669 | rtsp_st->transport_priv = rtsp_rtp_mux_open(s, st, rtsp_st->rtp_handle); | |
670 | /* Ownage of rtp_handle is passed to the rtp mux context */ | |
671 | rtsp_st->rtp_handle = NULL; | |
672 | } else if (rt->transport == RTSP_TRANSPORT_RDT) | |
1ced9da3 LA |
673 | rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index, |
674 | rtsp_st->dynamic_protocol_context, | |
675 | rtsp_st->dynamic_handler); | |
676 | else | |
677 | rtsp_st->transport_priv = rtp_parse_open(s, st, rtsp_st->rtp_handle, | |
678 | rtsp_st->sdp_payload_type, | |
679 | &rtsp_st->rtp_payload_data); | |
680 | ||
681 | if (!rtsp_st->transport_priv) { | |
682 | return AVERROR(ENOMEM); | |
683 | } else if (rt->transport != RTSP_TRANSPORT_RDT) { | |
c8965800 | 684 | if (rtsp_st->dynamic_handler) { |
1ced9da3 LA |
685 | rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv, |
686 | rtsp_st->dynamic_protocol_context, | |
687 | rtsp_st->dynamic_handler); | |
688 | } | |
689 | } | |
690 | ||
691 | return 0; | |
692 | } | |
693 | ||
6f5a3d0a | 694 | #if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER |
1ced9da3 LA |
695 | static int rtsp_probe(AVProbeData *p) |
696 | { | |
697 | if (av_strstart(p->filename, "rtsp:", NULL)) | |
698 | return AVPROBE_SCORE_MAX; | |
699 | return 0; | |
700 | } | |
701 | ||
1617ad97 FB |
702 | static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp) |
703 | { | |
704 | const char *p; | |
705 | int v; | |
706 | ||
707 | p = *pp; | |
708 | skip_spaces(&p); | |
709 | v = strtol(p, (char **)&p, 10); | |
710 | if (*p == '-') { | |
711 | p++; | |
712 | *min_ptr = v; | |
713 | v = strtol(p, (char **)&p, 10); | |
714 | *max_ptr = v; | |
715 | } else { | |
716 | *min_ptr = v; | |
717 | *max_ptr = v; | |
718 | } | |
719 | *pp = p; | |
720 | } | |
721 | ||
722 | /* XXX: only one transport specification is parsed */ | |
a9e534d5 | 723 | static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p) |
1617ad97 FB |
724 | { |
725 | char transport_protocol[16]; | |
726 | char profile[16]; | |
727 | char lower_transport[16]; | |
728 | char parameter[16]; | |
729 | RTSPTransportField *th; | |
730 | char buf[256]; | |
115329f1 | 731 | |
1617ad97 | 732 | reply->nb_transports = 0; |
115329f1 | 733 | |
c8965800 | 734 | for (;;) { |
1617ad97 FB |
735 | skip_spaces(&p); |
736 | if (*p == '\0') | |
737 | break; | |
738 | ||
739 | th = &reply->transports[reply->nb_transports]; | |
740 | ||
115329f1 | 741 | get_word_sep(transport_protocol, sizeof(transport_protocol), |
1617ad97 | 742 | "/", &p); |
e1502118 | 743 | if (!strcasecmp (transport_protocol, "rtp")) { |
7ecc634e LB |
744 | get_word_sep(profile, sizeof(profile), "/;,", &p); |
745 | lower_transport[0] = '\0'; | |
746 | /* rtp/avp/<protocol> */ | |
747 | if (*p == '/') { | |
7ecc634e LB |
748 | get_word_sep(lower_transport, sizeof(lower_transport), |
749 | ";,", &p); | |
119b4668 RB |
750 | } |
751 | th->transport = RTSP_TRANSPORT_RTP; | |
752 | } else if (!strcasecmp (transport_protocol, "x-pn-tng") || | |
753 | !strcasecmp (transport_protocol, "x-real-rdt")) { | |
7ecc634e | 754 | /* x-pn-tng/<protocol> */ |
e1502118 LB |
755 | get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p); |
756 | profile[0] = '\0'; | |
119b4668 | 757 | th->transport = RTSP_TRANSPORT_RDT; |
1617ad97 | 758 | } |
b6892136 | 759 | if (!strcasecmp(lower_transport, "TCP")) |
90abbdba | 760 | th->lower_transport = RTSP_LOWER_TRANSPORT_TCP; |
1617ad97 | 761 | else |
90abbdba | 762 | th->lower_transport = RTSP_LOWER_TRANSPORT_UDP; |
115329f1 | 763 | |
1617ad97 FB |
764 | if (*p == ';') |
765 | p++; | |
766 | /* get each parameter */ | |
767 | while (*p != '\0' && *p != ',') { | |
768 | get_word_sep(parameter, sizeof(parameter), "=;,", &p); | |
769 | if (!strcmp(parameter, "port")) { | |
770 | if (*p == '=') { | |
771 | p++; | |
772 | rtsp_parse_range(&th->port_min, &th->port_max, &p); | |
773 | } | |
774 | } else if (!strcmp(parameter, "client_port")) { | |
775 | if (*p == '=') { | |
776 | p++; | |
115329f1 | 777 | rtsp_parse_range(&th->client_port_min, |
1617ad97 FB |
778 | &th->client_port_max, &p); |
779 | } | |
780 | } else if (!strcmp(parameter, "server_port")) { | |
781 | if (*p == '=') { | |
782 | p++; | |
115329f1 | 783 | rtsp_parse_range(&th->server_port_min, |
1617ad97 FB |
784 | &th->server_port_max, &p); |
785 | } | |
786 | } else if (!strcmp(parameter, "interleaved")) { | |
787 | if (*p == '=') { | |
788 | p++; | |
115329f1 | 789 | rtsp_parse_range(&th->interleaved_min, |
1617ad97 FB |
790 | &th->interleaved_max, &p); |
791 | } | |
792 | } else if (!strcmp(parameter, "multicast")) { | |
90abbdba RB |
793 | if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP) |
794 | th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST; | |
1617ad97 FB |
795 | } else if (!strcmp(parameter, "ttl")) { |
796 | if (*p == '=') { | |
797 | p++; | |
798 | th->ttl = strtol(p, (char **)&p, 10); | |
799 | } | |
800 | } else if (!strcmp(parameter, "destination")) { | |
801 | struct in_addr ipaddr; | |
802 | ||
803 | if (*p == '=') { | |
804 | p++; | |
805 | get_word_sep(buf, sizeof(buf), ";,", &p); | |
115329f1 | 806 | if (inet_aton(buf, &ipaddr)) |
1617ad97 FB |
807 | th->destination = ntohl(ipaddr.s_addr); |
808 | } | |
809 | } | |
810 | while (*p != ';' && *p != '\0' && *p != ',') | |
811 | p++; | |
812 | if (*p == ';') | |
813 | p++; | |
814 | } | |
815 | if (*p == ',') | |
816 | p++; | |
817 | ||
818 | reply->nb_transports++; | |
819 | } | |
820 | } | |
821 | ||
3307e6ea | 822 | void ff_rtsp_parse_line(RTSPMessageHeader *reply, const char *buf) |
1617ad97 FB |
823 | { |
824 | const char *p; | |
825 | ||
826 | /* NOTE: we do case independent match for broken servers */ | |
827 | p = buf; | |
f7d78f36 | 828 | if (av_stristart(p, "Session:", &p)) { |
30e79845 | 829 | int t; |
1617ad97 | 830 | get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p); |
30e79845 RB |
831 | if (av_stristart(p, ";timeout=", &p) && |
832 | (t = strtol(p, NULL, 10)) > 0) { | |
833 | reply->timeout = t; | |
834 | } | |
f7d78f36 | 835 | } else if (av_stristart(p, "Content-Length:", &p)) { |
1617ad97 | 836 | reply->content_length = strtol(p, NULL, 10); |
f7d78f36 | 837 | } else if (av_stristart(p, "Transport:", &p)) { |
1617ad97 | 838 | rtsp_parse_transport(reply, p); |
f7d78f36 | 839 | } else if (av_stristart(p, "CSeq:", &p)) { |
1617ad97 | 840 | reply->seq = strtol(p, NULL, 10); |
f7d78f36 | 841 | } else if (av_stristart(p, "Range:", &p)) { |
31693e00 | 842 | rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end); |
30aa6aed RB |
843 | } else if (av_stristart(p, "RealChallenge1:", &p)) { |
844 | skip_spaces(&p); | |
845 | av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge)); | |
7a86bafa RB |
846 | } else if (av_stristart(p, "Server:", &p)) { |
847 | skip_spaces(&p); | |
848 | av_strlcpy(reply->server, p, sizeof(reply->server)); | |
fccb1770 RB |
849 | } else if (av_stristart(p, "Notice:", &p) || |
850 | av_stristart(p, "X-Notice:", &p)) { | |
851 | reply->notice = strtol(p, NULL, 10); | |
d243ba30 LB |
852 | } else if (av_stristart(p, "Location:", &p)) { |
853 | skip_spaces(&p); | |
854 | av_strlcpy(reply->location, p , sizeof(reply->location)); | |
1617ad97 FB |
855 | } |
856 | } | |
857 | ||
b7b8fc34 FB |
858 | /* skip a RTP/TCP interleaved packet */ |
859 | static void rtsp_skip_packet(AVFormatContext *s) | |
860 | { | |
861 | RTSPState *rt = s->priv_data; | |
862 | int ret, len, len1; | |
863 | uint8_t buf[1024]; | |
864 | ||
0e848977 | 865 | ret = url_read_complete(rt->rtsp_hd, buf, 3); |
b7b8fc34 FB |
866 | if (ret != 3) |
867 | return; | |
80fb8234 | 868 | len = AV_RB16(buf + 1); |
67c9cd69 BC |
869 | |
870 | dprintf(s, "skipping RTP packet len=%d\n", len); | |
871 | ||
b7b8fc34 FB |
872 | /* skip payload */ |
873 | while (len > 0) { | |
874 | len1 = len; | |
875 | if (len1 > sizeof(buf)) | |
876 | len1 = sizeof(buf); | |
0e848977 | 877 | ret = url_read_complete(rt->rtsp_hd, buf, len1); |
b7b8fc34 FB |
878 | if (ret != len1) |
879 | return; | |
880 | len -= len1; | |
881 | } | |
882 | } | |
1617ad97 | 883 | |
3307e6ea | 884 | int ff_rtsp_read_reply(AVFormatContext *s, RTSPMessageHeader *reply, |
93993933 MS |
885 | unsigned char **content_ptr, |
886 | int return_on_interleaved_data) | |
1617ad97 FB |
887 | { |
888 | RTSPState *rt = s->priv_data; | |
889 | char buf[4096], buf1[1024], *q; | |
890 | unsigned char ch; | |
891 | const char *p; | |
7e726132 | 892 | int ret, content_length, line_count = 0; |
1617ad97 FB |
893 | unsigned char *content = NULL; |
894 | ||
d541a7d2 | 895 | memset(reply, 0, sizeof(*reply)); |
1617ad97 | 896 | |
1617ad97 | 897 | /* parse reply (XXX: use buffers) */ |
1617ad97 | 898 | rt->last_reply[0] = '\0'; |
c8965800 | 899 | for (;;) { |
1617ad97 | 900 | q = buf; |
c8965800 | 901 | for (;;) { |
0e848977 | 902 | ret = url_read_complete(rt->rtsp_hd, &ch, 1); |
7e726132 | 903 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 904 | dprintf(s, "ret=%d c=%02x [%c]\n", ret, ch, ch); |
7e726132 RB |
905 | #endif |
906 | if (ret != 1) | |
907 | return -1; | |
1617ad97 FB |
908 | if (ch == '\n') |
909 | break; | |
b7b8fc34 FB |
910 | if (ch == '$') { |
911 | /* XXX: only parse it if first char on line ? */ | |
7e726132 RB |
912 | if (return_on_interleaved_data) { |
913 | return 1; | |
914 | } else | |
b7b8fc34 FB |
915 | rtsp_skip_packet(s); |
916 | } else if (ch != '\r') { | |
1617ad97 FB |
917 | if ((q - buf) < sizeof(buf) - 1) |
918 | *q++ = ch; | |
919 | } | |
920 | } | |
921 | *q = '\0'; | |
67c9cd69 BC |
922 | |
923 | dprintf(s, "line='%s'\n", buf); | |
924 | ||
1617ad97 FB |
925 | /* test if last line */ |
926 | if (buf[0] == '\0') | |
927 | break; | |
928 | p = buf; | |
929 | if (line_count == 0) { | |
930 | /* get reply code */ | |
931 | get_word(buf1, sizeof(buf1), &p); | |
932 | get_word(buf1, sizeof(buf1), &p); | |
933 | reply->status_code = atoi(buf1); | |
934 | } else { | |
3307e6ea | 935 | ff_rtsp_parse_line(reply, p); |
75e61b0e MR |
936 | av_strlcat(rt->last_reply, p, sizeof(rt->last_reply)); |
937 | av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply)); | |
1617ad97 FB |
938 | } |
939 | line_count++; | |
940 | } | |
115329f1 | 941 | |
1617ad97 | 942 | if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0') |
75e61b0e | 943 | av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id)); |
115329f1 | 944 | |
1617ad97 FB |
945 | content_length = reply->content_length; |
946 | if (content_length > 0) { | |
947 | /* leave some room for a trailing '\0' (useful for simple parsing) */ | |
948 | content = av_malloc(content_length + 1); | |
0e848977 | 949 | (void)url_read_complete(rt->rtsp_hd, content, content_length); |
1617ad97 FB |
950 | content[content_length] = '\0'; |
951 | } | |
952 | if (content_ptr) | |
953 | *content_ptr = content; | |
e2e2e7dd AB |
954 | else |
955 | av_free(content); | |
7e726132 | 956 | |
fccb1770 RB |
957 | /* EOS */ |
958 | if (reply->notice == 2101 /* End-of-Stream Reached */ || | |
959 | reply->notice == 2104 /* Start-of-Stream Reached */ || | |
c8965800 | 960 | reply->notice == 2306 /* Continuous Feed Terminated */) { |
fccb1770 | 961 | rt->state = RTSP_STATE_IDLE; |
c8965800 | 962 | } else if (reply->notice >= 4400 && reply->notice < 5500) { |
fccb1770 | 963 | return AVERROR(EIO); /* data or server error */ |
c8965800 | 964 | } else if (reply->notice == 2401 /* Ticket Expired */ || |
fccb1770 RB |
965 | (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ ) |
966 | return AVERROR(EPERM); | |
967 | ||
7e726132 | 968 | return 0; |
1617ad97 FB |
969 | } |
970 | ||
3307e6ea | 971 | void ff_rtsp_send_cmd_with_content_async(AVFormatContext *s, |
93993933 MS |
972 | const char *cmd, |
973 | const unsigned char *send_content, | |
974 | int send_content_length) | |
29b9f58b RB |
975 | { |
976 | RTSPState *rt = s->priv_data; | |
977 | char buf[4096], buf1[1024]; | |
978 | ||
979 | rt->seq++; | |
980 | av_strlcpy(buf, cmd, sizeof(buf)); | |
981 | snprintf(buf1, sizeof(buf1), "CSeq: %d\r\n", rt->seq); | |
982 | av_strlcat(buf, buf1, sizeof(buf)); | |
983 | if (rt->session_id[0] != '\0' && !strstr(cmd, "\nIf-Match:")) { | |
984 | snprintf(buf1, sizeof(buf1), "Session: %s\r\n", rt->session_id); | |
985 | av_strlcat(buf, buf1, sizeof(buf)); | |
986 | } | |
f9337897 RB |
987 | if (rt->auth_b64) |
988 | av_strlcatf(buf, sizeof(buf), | |
ba93ea6d RB |
989 | "Authorization: Basic %s\r\n", |
990 | rt->auth_b64); | |
dfd017bf MS |
991 | if (send_content_length > 0 && send_content) |
992 | av_strlcatf(buf, sizeof(buf), "Content-Length: %d\r\n", send_content_length); | |
29b9f58b | 993 | av_strlcat(buf, "\r\n", sizeof(buf)); |
67c9cd69 BC |
994 | |
995 | dprintf(s, "Sending:\n%s--\n", buf); | |
996 | ||
29b9f58b | 997 | url_write(rt->rtsp_hd, buf, strlen(buf)); |
dfd017bf MS |
998 | if (send_content_length > 0 && send_content) |
999 | url_write(rt->rtsp_hd, send_content, send_content_length); | |
30e79845 RB |
1000 | rt->last_cmd_time = av_gettime(); |
1001 | } | |
1002 | ||
3307e6ea | 1003 | void ff_rtsp_send_cmd_async(AVFormatContext *s, const char *cmd) |
dfd017bf | 1004 | { |
3307e6ea | 1005 | ff_rtsp_send_cmd_with_content_async(s, cmd, NULL, 0); |
dfd017bf MS |
1006 | } |
1007 | ||
3307e6ea | 1008 | void ff_rtsp_send_cmd(AVFormatContext *s, |
93993933 MS |
1009 | const char *cmd, RTSPMessageHeader *reply, |
1010 | unsigned char **content_ptr) | |
30e79845 | 1011 | { |
3307e6ea | 1012 | ff_rtsp_send_cmd_async(s, cmd); |
29b9f58b | 1013 | |
3307e6ea | 1014 | ff_rtsp_read_reply(s, reply, content_ptr, 0); |
29b9f58b RB |
1015 | } |
1016 | ||
3307e6ea | 1017 | void ff_rtsp_send_cmd_with_content(AVFormatContext *s, |
af037f80 MS |
1018 | const char *cmd, |
1019 | RTSPMessageHeader *reply, | |
1020 | unsigned char **content_ptr, | |
1021 | const unsigned char *send_content, | |
1022 | int send_content_length) | |
dfd017bf | 1023 | { |
3307e6ea | 1024 | ff_rtsp_send_cmd_with_content_async(s, cmd, send_content, send_content_length); |
dfd017bf | 1025 | |
3307e6ea | 1026 | ff_rtsp_read_reply(s, reply, content_ptr, 0); |
dfd017bf MS |
1027 | } |
1028 | ||
53620bba RB |
1029 | /** |
1030 | * @returns 0 on success, <0 on error, 1 if protocol is unavailable. | |
1031 | */ | |
c8965800 RB |
1032 | static int make_setup_request(AVFormatContext *s, const char *host, int port, |
1033 | int lower_transport, const char *real_challenge) | |
1617ad97 FB |
1034 | { |
1035 | RTSPState *rt = s->priv_data; | |
f830c9a4 | 1036 | int rtx, j, i, err, interleave = 0; |
1617ad97 | 1037 | RTSPStream *rtsp_st; |
a9e534d5 | 1038 | RTSPMessageHeader reply1, *reply = &reply1; |
53620bba | 1039 | char cmd[2048]; |
e9dea59f RB |
1040 | const char *trans_pref; |
1041 | ||
119b4668 | 1042 | if (rt->transport == RTSP_TRANSPORT_RDT) |
e9dea59f RB |
1043 | trans_pref = "x-pn-tng"; |
1044 | else | |
1045 | trans_pref = "RTP/AVP"; | |
115329f1 | 1046 | |
30e79845 RB |
1047 | /* default timeout: 1 minute */ |
1048 | rt->timeout = 60; | |
1049 | ||
1617ad97 FB |
1050 | /* for each stream, make the setup request */ |
1051 | /* XXX: we assume the same server is used for the control of each | |
c8965800 | 1052 | * RTSP stream */ |
d1ccf0e0 | 1053 | |
c8965800 | 1054 | for (j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) { |
1617ad97 FB |
1055 | char transport[2048]; |
1056 | ||
f830c9a4 RB |
1057 | /** |
1058 | * WMS serves all UDP data over a single connection, the RTX, which | |
1059 | * isn't necessarily the first in the SDP but has to be the first | |
1060 | * to be set up, else the second/third SETUP will fail with a 461. | |
1061 | */ | |
1062 | if (lower_transport == RTSP_LOWER_TRANSPORT_UDP && | |
1063 | rt->server_type == RTSP_SERVER_WMS) { | |
1064 | if (i == 0) { | |
1065 | /* rtx first */ | |
1066 | for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) { | |
1067 | int len = strlen(rt->rtsp_streams[rtx]->control_url); | |
1068 | if (len >= 4 && | |
c8965800 RB |
1069 | !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4, |
1070 | "/rtx")) | |
f830c9a4 RB |
1071 | break; |
1072 | } | |
1073 | if (rtx == rt->nb_rtsp_streams) | |
1074 | return -1; /* no RTX found */ | |
1075 | rtsp_st = rt->rtsp_streams[rtx]; | |
1076 | } else | |
1077 | rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1]; | |
1078 | } else | |
2fea9650 | 1079 | rtsp_st = rt->rtsp_streams[i]; |
1617ad97 | 1080 | |
1617ad97 | 1081 | /* RTP/UDP */ |
90abbdba | 1082 | if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) { |
85fb7b34 | 1083 | char buf[256]; |
85fb7b34 | 1084 | |
f830c9a4 RB |
1085 | if (rt->server_type == RTSP_SERVER_WMS && i > 1) { |
1086 | port = reply->transports[0].client_port_min; | |
1087 | goto have_port; | |
1088 | } | |
1089 | ||
85fb7b34 | 1090 | /* first try in specified port range */ |
d1ccf0e0 | 1091 | if (RTSP_RTP_PORT_MIN != 0) { |
c8965800 RB |
1092 | while (j <= RTSP_RTP_PORT_MAX) { |
1093 | snprintf(buf, sizeof(buf), "rtp://%s?localport=%d", | |
1094 | host, j); | |
1095 | /* we will use two ports per rtp stream (rtp and rtcp) */ | |
1096 | j += 2; | |
1097 | if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0) | |
85fb7b34 FB |
1098 | goto rtp_opened; |
1099 | } | |
1617ad97 | 1100 | } |
85fb7b34 | 1101 | |
c8965800 RB |
1102 | #if 0 |
1103 | /* then try on any port */ | |
1104 | if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) { | |
1105 | err = AVERROR_INVALIDDATA; | |
1106 | goto fail; | |
1107 | } | |
1108 | #endif | |
85fb7b34 FB |
1109 | |
1110 | rtp_opened: | |
8b1ab7bf | 1111 | port = rtp_get_local_port(rtsp_st->rtp_handle); |
f830c9a4 | 1112 | have_port: |
0ad306bc | 1113 | snprintf(transport, sizeof(transport) - 1, |
eee2cbff RB |
1114 | "%s/UDP;", trans_pref); |
1115 | if (rt->server_type != RTSP_SERVER_REAL) | |
1116 | av_strlcat(transport, "unicast;", sizeof(transport)); | |
1117 | av_strlcatf(transport, sizeof(transport), | |
1118 | "client_port=%d", port); | |
f830c9a4 RB |
1119 | if (rt->transport == RTSP_TRANSPORT_RTP && |
1120 | !(rt->server_type == RTSP_SERVER_WMS && i > 0)) | |
e9dea59f | 1121 | av_strlcatf(transport, sizeof(transport), "-%d", port + 1); |
1617ad97 FB |
1122 | } |
1123 | ||
1124 | /* RTP/TCP */ | |
90abbdba | 1125 | else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) { |
090438cc RB |
1126 | /** For WMS streams, the application streams are only used for |
1127 | * UDP. When trying to set it up for TCP streams, the server | |
1128 | * will return an error. Therefore, we skip those streams. */ | |
1129 | if (rt->server_type == RTSP_SERVER_WMS && | |
c8965800 RB |
1130 | s->streams[rtsp_st->stream_index]->codec->codec_type == |
1131 | CODEC_TYPE_DATA) | |
090438cc | 1132 | continue; |
0ad306bc | 1133 | snprintf(transport, sizeof(transport) - 1, |
d1c6e47c RB |
1134 | "%s/TCP;", trans_pref); |
1135 | if (rt->server_type == RTSP_SERVER_WMS) | |
1136 | av_strlcat(transport, "unicast;", sizeof(transport)); | |
1137 | av_strlcatf(transport, sizeof(transport), | |
1138 | "interleaved=%d-%d", | |
1139 | interleave, interleave + 1); | |
1140 | interleave += 2; | |
1617ad97 FB |
1141 | } |
1142 | ||
90abbdba | 1143 | else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) { |
0ad306bc | 1144 | snprintf(transport, sizeof(transport) - 1, |
e9dea59f | 1145 | "%s/UDP;multicast", trans_pref); |
1617ad97 | 1146 | } |
69adcc4f MS |
1147 | if (s->oformat) { |
1148 | av_strlcat(transport, ";mode=receive", sizeof(transport)); | |
1149 | } else if (rt->server_type == RTSP_SERVER_REAL || | |
2efc97c2 | 1150 | rt->server_type == RTSP_SERVER_WMS) |
e9dea59f | 1151 | av_strlcat(transport, ";mode=play", sizeof(transport)); |
115329f1 | 1152 | snprintf(cmd, sizeof(cmd), |
b6892136 FB |
1153 | "SETUP %s RTSP/1.0\r\n" |
1154 | "Transport: %s\r\n", | |
1617ad97 | 1155 | rtsp_st->control_url, transport); |
2e889ae4 | 1156 | if (i == 0 && rt->server_type == RTSP_SERVER_REAL) { |
e9dea59f RB |
1157 | char real_res[41], real_csum[9]; |
1158 | ff_rdt_calc_response_and_checksum(real_res, real_csum, | |
1159 | real_challenge); | |
1160 | av_strlcatf(cmd, sizeof(cmd), | |
1161 | "If-Match: %s\r\n" | |
1162 | "RealChallenge2: %s, sd=%s\r\n", | |
1163 | rt->session_id, real_res, real_csum); | |
1164 | } | |
3307e6ea | 1165 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
8a8754d8 RB |
1166 | if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) { |
1167 | err = 1; | |
1168 | goto fail; | |
7e6ca34f RB |
1169 | } else if (reply->status_code != RTSP_STATUS_OK || |
1170 | reply->nb_transports != 1) { | |
1617ad97 FB |
1171 | err = AVERROR_INVALIDDATA; |
1172 | goto fail; | |
1173 | } | |
1174 | ||
1175 | /* XXX: same protocol for all streams is required */ | |
1176 | if (i > 0) { | |
119b4668 RB |
1177 | if (reply->transports[0].lower_transport != rt->lower_transport || |
1178 | reply->transports[0].transport != rt->transport) { | |
1617ad97 FB |
1179 | err = AVERROR_INVALIDDATA; |
1180 | goto fail; | |
1181 | } | |
1182 | } else { | |
90abbdba | 1183 | rt->lower_transport = reply->transports[0].lower_transport; |
119b4668 | 1184 | rt->transport = reply->transports[0].transport; |
1617ad97 FB |
1185 | } |
1186 | ||
1187 | /* close RTP connection if not choosen */ | |
90abbdba RB |
1188 | if (reply->transports[0].lower_transport != RTSP_LOWER_TRANSPORT_UDP && |
1189 | (lower_transport == RTSP_LOWER_TRANSPORT_UDP)) { | |
8b1ab7bf FB |
1190 | url_close(rtsp_st->rtp_handle); |
1191 | rtsp_st->rtp_handle = NULL; | |
1617ad97 FB |
1192 | } |
1193 | ||
90abbdba RB |
1194 | switch(reply->transports[0].lower_transport) { |
1195 | case RTSP_LOWER_TRANSPORT_TCP: | |
1617ad97 FB |
1196 | rtsp_st->interleaved_min = reply->transports[0].interleaved_min; |
1197 | rtsp_st->interleaved_max = reply->transports[0].interleaved_max; | |
1198 | break; | |
115329f1 | 1199 | |
c8965800 RB |
1200 | case RTSP_LOWER_TRANSPORT_UDP: { |
1201 | char url[1024]; | |
1202 | ||
1203 | /* XXX: also use address if specified */ | |
1204 | snprintf(url, sizeof(url), "rtp://%s:%d", | |
1205 | host, reply->transports[0].server_port_min); | |
1206 | if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && | |
1207 | rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) { | |
1208 | err = AVERROR_INVALIDDATA; | |
1209 | goto fail; | |
1617ad97 | 1210 | } |
9c8fa20d MS |
1211 | /* Try to initialize the connection state in a |
1212 | * potential NAT router by sending dummy packets. | |
1213 | * RTP/RTCP dummy packets are used for RDT, too. | |
1214 | */ | |
30ff7c5c | 1215 | if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && s->iformat) |
9c8fa20d | 1216 | rtp_send_punch_packets(rtsp_st->rtp_handle); |
1617ad97 | 1217 | break; |
c8965800 RB |
1218 | } |
1219 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: { | |
1220 | char url[1024]; | |
1221 | struct in_addr in; | |
1222 | int port, ttl; | |
1223 | ||
1224 | if (reply->transports[0].destination) { | |
1225 | in.s_addr = htonl(reply->transports[0].destination); | |
1226 | port = reply->transports[0].port_min; | |
1227 | ttl = reply->transports[0].ttl; | |
1228 | } else { | |
1229 | in = rtsp_st->sdp_ip; | |
1230 | port = rtsp_st->sdp_port; | |
1231 | ttl = rtsp_st->sdp_ttl; | |
1232 | } | |
1233 | snprintf(url, sizeof(url), "rtp://%s:%d?ttl=%d", | |
1234 | inet_ntoa(in), port, ttl); | |
1235 | if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) { | |
1236 | err = AVERROR_INVALIDDATA; | |
1237 | goto fail; | |
1617ad97 FB |
1238 | } |
1239 | break; | |
1240 | } | |
c8965800 | 1241 | } |
d1ccf0e0 | 1242 | |
ee0cb67f | 1243 | if ((err = rtsp_open_transport_ctx(s, rtsp_st))) |
8b1ab7bf | 1244 | goto fail; |
1617ad97 FB |
1245 | } |
1246 | ||
30e79845 RB |
1247 | if (reply->timeout > 0) |
1248 | rt->timeout = reply->timeout; | |
1249 | ||
2e889ae4 | 1250 | if (rt->server_type == RTSP_SERVER_REAL) |
1256d16b RB |
1251 | rt->need_subscription = 1; |
1252 | ||
53620bba RB |
1253 | return 0; |
1254 | ||
1255 | fail: | |
c8965800 | 1256 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
8a8754d8 RB |
1257 | if (rt->rtsp_streams[i]->rtp_handle) { |
1258 | url_close(rt->rtsp_streams[i]->rtp_handle); | |
1259 | rt->rtsp_streams[i]->rtp_handle = NULL; | |
1260 | } | |
1261 | } | |
53620bba RB |
1262 | return err; |
1263 | } | |
1264 | ||
1ced9da3 LA |
1265 | static int rtsp_read_play(AVFormatContext *s) |
1266 | { | |
1267 | RTSPState *rt = s->priv_data; | |
1268 | RTSPMessageHeader reply1, *reply = &reply1; | |
1269 | char cmd[1024]; | |
1270 | ||
1271 | av_log(s, AV_LOG_DEBUG, "hello state=%d\n", rt->state); | |
1272 | ||
1273 | if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) { | |
1274 | if (rt->state == RTSP_STATE_PAUSED) { | |
1275 | snprintf(cmd, sizeof(cmd), | |
1276 | "PLAY %s RTSP/1.0\r\n", | |
00eb13e0 | 1277 | rt->control_uri); |
1ced9da3 LA |
1278 | } else { |
1279 | snprintf(cmd, sizeof(cmd), | |
1280 | "PLAY %s RTSP/1.0\r\n" | |
1281 | "Range: npt=%0.3f-\r\n", | |
00eb13e0 | 1282 | rt->control_uri, |
1ced9da3 LA |
1283 | (double)rt->seek_timestamp / AV_TIME_BASE); |
1284 | } | |
3307e6ea | 1285 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
1ced9da3 LA |
1286 | if (reply->status_code != RTSP_STATUS_OK) { |
1287 | return -1; | |
1288 | } | |
1289 | } | |
c02fd3d2 | 1290 | rt->state = RTSP_STATE_STREAMING; |
1ced9da3 LA |
1291 | return 0; |
1292 | } | |
1293 | ||
e23d195d MS |
1294 | static int rtsp_setup_input_streams(AVFormatContext *s) |
1295 | { | |
1296 | RTSPState *rt = s->priv_data; | |
1297 | RTSPMessageHeader reply1, *reply = &reply1; | |
1298 | char cmd[1024]; | |
1299 | unsigned char *content = NULL; | |
1300 | int ret; | |
1301 | ||
1302 | /* describe the stream */ | |
1303 | snprintf(cmd, sizeof(cmd), | |
1304 | "DESCRIBE %s RTSP/1.0\r\n" | |
1305 | "Accept: application/sdp\r\n", | |
1306 | s->filename); | |
1307 | if (rt->server_type == RTSP_SERVER_REAL) { | |
1308 | /** | |
1309 | * The Require: attribute is needed for proper streaming from | |
1310 | * Realmedia servers. | |
1311 | */ | |
1312 | av_strlcat(cmd, | |
1313 | "Require: com.real.retain-entity-for-setup\r\n", | |
1314 | sizeof(cmd)); | |
1315 | } | |
3307e6ea | 1316 | ff_rtsp_send_cmd(s, cmd, reply, &content); |
e23d195d MS |
1317 | if (!content) |
1318 | return AVERROR_INVALIDDATA; | |
1319 | if (reply->status_code != RTSP_STATUS_OK) { | |
1320 | av_freep(&content); | |
1321 | return AVERROR_INVALIDDATA; | |
1322 | } | |
1323 | ||
1324 | /* now we got the SDP description, we parse it */ | |
1325 | ret = sdp_parse(s, (const char *)content); | |
1326 | av_freep(&content); | |
1327 | if (ret < 0) | |
1328 | return AVERROR_INVALIDDATA; | |
1329 | ||
1330 | return 0; | |
1331 | } | |
1332 | ||
3e24c770 MS |
1333 | static int rtsp_setup_output_streams(AVFormatContext *s) |
1334 | { | |
1335 | RTSPState *rt = s->priv_data; | |
1336 | RTSPMessageHeader reply1, *reply = &reply1; | |
1337 | char cmd[1024]; | |
1338 | int i; | |
1339 | char *sdp; | |
1340 | ||
1341 | /* Announce the stream */ | |
1342 | snprintf(cmd, sizeof(cmd), | |
1343 | "ANNOUNCE %s RTSP/1.0\r\n" | |
1344 | "Content-Type: application/sdp\r\n", | |
1345 | s->filename); | |
1346 | sdp = av_mallocz(8192); | |
1347 | if (sdp == NULL) | |
1348 | return AVERROR(ENOMEM); | |
1349 | if (avf_sdp_create(&s, 1, sdp, 8192)) { | |
1350 | av_free(sdp); | |
1351 | return AVERROR_INVALIDDATA; | |
1352 | } | |
1353 | av_log(s, AV_LOG_INFO, "SDP:\n%s\n", sdp); | |
3307e6ea | 1354 | ff_rtsp_send_cmd_with_content(s, cmd, reply, NULL, sdp, strlen(sdp)); |
3e24c770 MS |
1355 | av_free(sdp); |
1356 | if (reply->status_code != RTSP_STATUS_OK) | |
1357 | return AVERROR_INVALIDDATA; | |
1358 | ||
1359 | /* Set up the RTSPStreams for each AVStream */ | |
1360 | for (i = 0; i < s->nb_streams; i++) { | |
1361 | RTSPStream *rtsp_st; | |
1362 | AVStream *st = s->streams[i]; | |
1363 | ||
1364 | rtsp_st = av_mallocz(sizeof(RTSPStream)); | |
1365 | if (!rtsp_st) | |
1366 | return AVERROR(ENOMEM); | |
1367 | dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st); | |
1368 | ||
1369 | st->priv_data = rtsp_st; | |
1370 | rtsp_st->stream_index = i; | |
1371 | ||
1372 | av_strlcpy(rtsp_st->control_url, s->filename, sizeof(rtsp_st->control_url)); | |
1373 | /* Note, this must match the relative uri set in the sdp content */ | |
1374 | av_strlcatf(rtsp_st->control_url, sizeof(rtsp_st->control_url), | |
1375 | "/streamid=%d", i); | |
1376 | } | |
1377 | ||
1378 | return 0; | |
1379 | } | |
1380 | ||
3307e6ea | 1381 | int ff_rtsp_connect(AVFormatContext *s) |
53620bba RB |
1382 | { |
1383 | RTSPState *rt = s->priv_data; | |
921da217 LB |
1384 | char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128]; |
1385 | char *option_list, *option, *filename; | |
53620bba | 1386 | URLContext *rtsp_hd; |
e23d195d | 1387 | int port, err; |
a9e534d5 | 1388 | RTSPMessageHeader reply1, *reply = &reply1; |
90abbdba | 1389 | int lower_transport_mask = 0; |
1cf151e9 | 1390 | char real_challenge[64]; |
c8965800 | 1391 | redirect: |
53620bba | 1392 | /* extract hostname and port */ |
f9337897 | 1393 | url_split(NULL, 0, auth, sizeof(auth), |
53620bba | 1394 | host, sizeof(host), &port, path, sizeof(path), s->filename); |
f9337897 RB |
1395 | if (*auth) { |
1396 | int auth_len = strlen(auth), b64_len = ((auth_len + 2) / 3) * 4 + 1; | |
1397 | ||
1398 | if (!(rt->auth_b64 = av_malloc(b64_len))) | |
1399 | return AVERROR(ENOMEM); | |
1400 | if (!av_base64_encode(rt->auth_b64, b64_len, auth, auth_len)) { | |
1401 | err = AVERROR(EINVAL); | |
1402 | goto fail; | |
1403 | } | |
1404 | } | |
53620bba RB |
1405 | if (port < 0) |
1406 | port = RTSP_DEFAULT_PORT; | |
1407 | ||
1408 | /* search for options */ | |
1409 | option_list = strchr(path, '?'); | |
1410 | if (option_list) { | |
921da217 | 1411 | filename = strchr(s->filename, '?'); |
c8965800 | 1412 | while (option_list) { |
53620bba | 1413 | /* move the option pointer */ |
921da217 | 1414 | option = ++option_list; |
53620bba RB |
1415 | option_list = strchr(option_list, '&'); |
1416 | if (option_list) | |
921da217 LB |
1417 | *option_list = 0; |
1418 | ||
53620bba | 1419 | /* handle the options */ |
c8965800 | 1420 | if (!strcmp(option, "udp")) { |
90abbdba | 1421 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP); |
c8965800 | 1422 | } else if (!strcmp(option, "multicast")) { |
90abbdba | 1423 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP_MULTICAST); |
c8965800 | 1424 | } else if (!strcmp(option, "tcp")) { |
90abbdba | 1425 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_TCP); |
c8965800 | 1426 | } else { |
921da217 LB |
1427 | strcpy(++filename, option); |
1428 | filename += strlen(option); | |
1429 | if (option_list) *filename = '&'; | |
1430 | } | |
53620bba | 1431 | } |
921da217 | 1432 | *filename = 0; |
53620bba RB |
1433 | } |
1434 | ||
90abbdba | 1435 | if (!lower_transport_mask) |
2a1d51c5 | 1436 | lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1; |
53620bba | 1437 | |
3e24c770 MS |
1438 | if (s->oformat) { |
1439 | /* Only UDP output is supported at the moment. */ | |
1440 | lower_transport_mask &= 1 << RTSP_LOWER_TRANSPORT_UDP; | |
1441 | if (!lower_transport_mask) { | |
1442 | av_log(s, AV_LOG_ERROR, "Unsupported lower transport method, " | |
1443 | "only UDP is supported for output.\n"); | |
1444 | err = AVERROR(EINVAL); | |
1445 | goto fail; | |
1446 | } | |
1447 | } | |
1448 | ||
53620bba RB |
1449 | /* open the tcp connexion */ |
1450 | snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port); | |
f9337897 RB |
1451 | if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0) { |
1452 | err = AVERROR(EIO); | |
1453 | goto fail; | |
1454 | } | |
53620bba RB |
1455 | rt->rtsp_hd = rtsp_hd; |
1456 | rt->seq = 0; | |
1457 | ||
c8965800 RB |
1458 | /* request options supported by the server; this also detects server |
1459 | * type */ | |
00eb13e0 AS |
1460 | av_strlcpy(rt->control_uri, s->filename, |
1461 | sizeof(rt->control_uri)); | |
1cf151e9 RB |
1462 | for (rt->server_type = RTSP_SERVER_RTP;;) { |
1463 | snprintf(cmd, sizeof(cmd), | |
1464 | "OPTIONS %s RTSP/1.0\r\n", s->filename); | |
2e889ae4 | 1465 | if (rt->server_type == RTSP_SERVER_REAL) |
1cf151e9 RB |
1466 | av_strlcat(cmd, |
1467 | /** | |
1468 | * The following entries are required for proper | |
1469 | * streaming from a Realmedia server. They are | |
1470 | * interdependent in some way although we currently | |
1471 | * don't quite understand how. Values were copied | |
1472 | * from mplayer SVN r23589. | |
1473 | * @param CompanyID is a 16-byte ID in base64 | |
1474 | * @param ClientChallenge is a 16-byte ID in hex | |
1475 | */ | |
1476 | "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n" | |
1477 | "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n" | |
1478 | "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n" | |
1479 | "GUID: 00000000-0000-0000-0000-000000000000\r\n", | |
1480 | sizeof(cmd)); | |
3307e6ea | 1481 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
1cf151e9 RB |
1482 | if (reply->status_code != RTSP_STATUS_OK) { |
1483 | err = AVERROR_INVALIDDATA; | |
1484 | goto fail; | |
1485 | } | |
1486 | ||
1487 | /* detect server type if not standard-compliant RTP */ | |
2e889ae4 RB |
1488 | if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) { |
1489 | rt->server_type = RTSP_SERVER_REAL; | |
1cf151e9 | 1490 | continue; |
7a86bafa RB |
1491 | } else if (!strncasecmp(reply->server, "WMServer/", 9)) { |
1492 | rt->server_type = RTSP_SERVER_WMS; | |
c8965800 | 1493 | } else if (rt->server_type == RTSP_SERVER_REAL) |
1cf151e9 | 1494 | strcpy(real_challenge, reply->real_challenge); |
1cf151e9 RB |
1495 | break; |
1496 | } | |
1497 | ||
3e24c770 | 1498 | if (s->iformat) |
2efc97c2 | 1499 | err = rtsp_setup_input_streams(s); |
3e24c770 MS |
1500 | else |
1501 | err = rtsp_setup_output_streams(s); | |
e23d195d | 1502 | if (err) |
53620bba | 1503 | goto fail; |
53620bba | 1504 | |
8a8754d8 | 1505 | do { |
c8965800 RB |
1506 | int lower_transport = ff_log2_tab[lower_transport_mask & |
1507 | ~(lower_transport_mask - 1)]; | |
8a8754d8 | 1508 | |
90abbdba | 1509 | err = make_setup_request(s, host, port, lower_transport, |
2e889ae4 | 1510 | rt->server_type == RTSP_SERVER_REAL ? |
e9dea59f | 1511 | real_challenge : NULL); |
8a8754d8 | 1512 | if (err < 0) |
7e6ca34f | 1513 | goto fail; |
90abbdba RB |
1514 | lower_transport_mask &= ~(1 << lower_transport); |
1515 | if (lower_transport_mask == 0 && err == 1) { | |
5ee0e139 | 1516 | err = AVERROR(FF_NETERROR(EPROTONOSUPPORT)); |
8a8754d8 RB |
1517 | goto fail; |
1518 | } | |
1519 | } while (err); | |
53620bba | 1520 | |
ff762d6e | 1521 | rt->state = RTSP_STATE_IDLE; |
c8965800 | 1522 | rt->seek_timestamp = 0; /* default is to start stream at position zero */ |
1617ad97 FB |
1523 | return 0; |
1524 | fail: | |
3307e6ea | 1525 | ff_rtsp_close_streams(s); |
1617ad97 | 1526 | url_close(rt->rtsp_hd); |
35cfd646 | 1527 | if (reply->status_code >=300 && reply->status_code < 400 && s->iformat) { |
d243ba30 LB |
1528 | av_strlcpy(s->filename, reply->location, sizeof(s->filename)); |
1529 | av_log(s, AV_LOG_INFO, "Status %d: Redirecting to %s\n", | |
1530 | reply->status_code, | |
1531 | s->filename); | |
1532 | goto redirect; | |
1533 | } | |
1617ad97 FB |
1534 | return err; |
1535 | } | |
6f5a3d0a | 1536 | #endif |
1617ad97 | 1537 | |
6f5a3d0a | 1538 | #if CONFIG_RTSP_DEMUXER |
4280f9bb MS |
1539 | static int rtsp_read_header(AVFormatContext *s, |
1540 | AVFormatParameters *ap) | |
1541 | { | |
1542 | RTSPState *rt = s->priv_data; | |
1543 | int ret; | |
1544 | ||
3307e6ea | 1545 | ret = ff_rtsp_connect(s); |
4280f9bb MS |
1546 | if (ret) |
1547 | return ret; | |
1548 | ||
1549 | if (ap->initial_pause) { | |
1550 | /* do not start immediately */ | |
1551 | } else { | |
1552 | if (rtsp_read_play(s) < 0) { | |
3307e6ea | 1553 | ff_rtsp_close_streams(s); |
4280f9bb MS |
1554 | url_close(rt->rtsp_hd); |
1555 | return AVERROR_INVALIDDATA; | |
1556 | } | |
1557 | } | |
1558 | ||
1559 | return 0; | |
1560 | } | |
1561 | ||
0e59034e RB |
1562 | static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st, |
1563 | uint8_t *buf, int buf_size) | |
1564 | { | |
1565 | RTSPState *rt = s->priv_data; | |
1566 | RTSPStream *rtsp_st; | |
1567 | fd_set rfds; | |
1568 | int fd, fd_max, n, i, ret, tcp_fd; | |
1569 | struct timeval tv; | |
1570 | ||
c8965800 | 1571 | for (;;) { |
0e59034e RB |
1572 | if (url_interrupt_cb()) |
1573 | return AVERROR(EINTR); | |
1574 | FD_ZERO(&rfds); | |
1575 | if (rt->rtsp_hd) { | |
1576 | tcp_fd = fd_max = url_get_file_handle(rt->rtsp_hd); | |
1577 | FD_SET(tcp_fd, &rfds); | |
1578 | } else { | |
1579 | fd_max = 0; | |
1580 | tcp_fd = -1; | |
1581 | } | |
c8965800 | 1582 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
0e59034e RB |
1583 | rtsp_st = rt->rtsp_streams[i]; |
1584 | if (rtsp_st->rtp_handle) { | |
1585 | /* currently, we cannot probe RTCP handle because of | |
1586 | * blocking restrictions */ | |
1587 | fd = url_get_file_handle(rtsp_st->rtp_handle); | |
1588 | if (fd > fd_max) | |
1589 | fd_max = fd; | |
1590 | FD_SET(fd, &rfds); | |
1591 | } | |
1592 | } | |
1593 | tv.tv_sec = 0; | |
1594 | tv.tv_usec = 100 * 1000; | |
1595 | n = select(fd_max + 1, &rfds, NULL, NULL, &tv); | |
1596 | if (n > 0) { | |
c8965800 | 1597 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
0e59034e RB |
1598 | rtsp_st = rt->rtsp_streams[i]; |
1599 | if (rtsp_st->rtp_handle) { | |
1600 | fd = url_get_file_handle(rtsp_st->rtp_handle); | |
1601 | if (FD_ISSET(fd, &rfds)) { | |
1602 | ret = url_read(rtsp_st->rtp_handle, buf, buf_size); | |
1603 | if (ret > 0) { | |
1604 | *prtsp_st = rtsp_st; | |
1605 | return ret; | |
1606 | } | |
1607 | } | |
1608 | } | |
1609 | } | |
1610 | #if CONFIG_RTSP_DEMUXER | |
27000636 | 1611 | if (tcp_fd != -1 && FD_ISSET(tcp_fd, &rfds)) { |
0e59034e RB |
1612 | RTSPMessageHeader reply; |
1613 | ||
3307e6ea | 1614 | ff_rtsp_read_reply(s, &reply, NULL, 0); |
0e59034e | 1615 | /* XXX: parse message */ |
c02fd3d2 | 1616 | if (rt->state != RTSP_STATE_STREAMING) |
0e59034e RB |
1617 | return 0; |
1618 | } | |
1619 | #endif | |
1620 | } | |
1621 | } | |
1622 | } | |
1623 | ||
8b1ab7bf FB |
1624 | static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st, |
1625 | uint8_t *buf, int buf_size) | |
1617ad97 FB |
1626 | { |
1627 | RTSPState *rt = s->priv_data; | |
b6892136 | 1628 | int id, len, i, ret; |
1617ad97 | 1629 | RTSPStream *rtsp_st; |
1617ad97 | 1630 | |
b6892136 | 1631 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 1632 | dprintf(s, "tcp_read_packet:\n"); |
b6892136 | 1633 | #endif |
c8965800 RB |
1634 | redo: |
1635 | for (;;) { | |
7e726132 RB |
1636 | RTSPMessageHeader reply; |
1637 | ||
3307e6ea | 1638 | ret = ff_rtsp_read_reply(s, &reply, NULL, 1); |
7e726132 | 1639 | if (ret == -1) |
8b1ab7bf | 1640 | return -1; |
7e726132 | 1641 | if (ret == 1) /* received '$' */ |
1617ad97 | 1642 | break; |
7e726132 | 1643 | /* XXX: parse message */ |
c02fd3d2 | 1644 | if (rt->state != RTSP_STATE_STREAMING) |
fccb1770 | 1645 | return 0; |
1617ad97 | 1646 | } |
0e848977 | 1647 | ret = url_read_complete(rt->rtsp_hd, buf, 3); |
b6892136 | 1648 | if (ret != 3) |
8b1ab7bf | 1649 | return -1; |
c8965800 | 1650 | id = buf[0]; |
80fb8234 | 1651 | len = AV_RB16(buf + 1); |
b6892136 | 1652 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 1653 | dprintf(s, "id=%d len=%d\n", id, len); |
b6892136 | 1654 | #endif |
8b1ab7bf | 1655 | if (len > buf_size || len < 12) |
1617ad97 FB |
1656 | goto redo; |
1657 | /* get the data */ | |
0e848977 | 1658 | ret = url_read_complete(rt->rtsp_hd, buf, len); |
b6892136 | 1659 | if (ret != len) |
8b1ab7bf | 1660 | return -1; |
985b05d3 | 1661 | if (rt->transport == RTSP_TRANSPORT_RDT && |
114732f4 | 1662 | ff_rdt_parse_header(buf, len, &id, NULL, NULL, NULL, NULL) < 0) |
985b05d3 | 1663 | return -1; |
115329f1 | 1664 | |
1617ad97 | 1665 | /* find the matching stream */ |
c8965800 | 1666 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
8b1ab7bf | 1667 | rtsp_st = rt->rtsp_streams[i]; |
115329f1 DB |
1668 | if (id >= rtsp_st->interleaved_min && |
1669 | id <= rtsp_st->interleaved_max) | |
1617ad97 FB |
1670 | goto found; |
1671 | } | |
1672 | goto redo; | |
c8965800 | 1673 | found: |
8b1ab7bf FB |
1674 | *prtsp_st = rtsp_st; |
1675 | return len; | |
1617ad97 FB |
1676 | } |
1677 | ||
0e59034e RB |
1678 | static int rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt) |
1679 | { | |
1680 | RTSPState *rt = s->priv_data; | |
1681 | int ret, len; | |
1682 | uint8_t buf[10 * RTP_MAX_PACKET_LENGTH]; | |
1683 | RTSPStream *rtsp_st; | |
1684 | ||
1685 | /* get next frames from the same RTP packet */ | |
1686 | if (rt->cur_transport_priv) { | |
c8965800 | 1687 | if (rt->transport == RTSP_TRANSPORT_RDT) { |
0e59034e | 1688 | ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0); |
c8965800 | 1689 | } else |
0e59034e RB |
1690 | ret = rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0); |
1691 | if (ret == 0) { | |
1692 | rt->cur_transport_priv = NULL; | |
1693 | return 0; | |
1694 | } else if (ret == 1) { | |
1695 | return 0; | |
c8965800 | 1696 | } else |
0e59034e | 1697 | rt->cur_transport_priv = NULL; |
0e59034e RB |
1698 | } |
1699 | ||
1700 | /* read next RTP packet */ | |
1701 | redo: | |
1702 | switch(rt->lower_transport) { | |
1703 | default: | |
1704 | #if CONFIG_RTSP_DEMUXER | |
1705 | case RTSP_LOWER_TRANSPORT_TCP: | |
1706 | len = tcp_read_packet(s, &rtsp_st, buf, sizeof(buf)); | |
1707 | break; | |
1708 | #endif | |
1709 | case RTSP_LOWER_TRANSPORT_UDP: | |
1710 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: | |
1711 | len = udp_read_packet(s, &rtsp_st, buf, sizeof(buf)); | |
1712 | if (len >=0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP) | |
1713 | rtp_check_and_send_back_rr(rtsp_st->transport_priv, len); | |
1714 | break; | |
1715 | } | |
1716 | if (len < 0) | |
1717 | return len; | |
1718 | if (len == 0) | |
1719 | return AVERROR_EOF; | |
c8965800 | 1720 | if (rt->transport == RTSP_TRANSPORT_RDT) { |
0e59034e | 1721 | ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, buf, len); |
c8965800 | 1722 | } else |
0e59034e RB |
1723 | ret = rtp_parse_packet(rtsp_st->transport_priv, pkt, buf, len); |
1724 | if (ret < 0) | |
1725 | goto redo; | |
c8965800 | 1726 | if (ret == 1) |
0e59034e RB |
1727 | /* more packets may follow, so we save the RTP context */ |
1728 | rt->cur_transport_priv = rtsp_st->transport_priv; | |
0e59034e RB |
1729 | |
1730 | return ret; | |
1731 | } | |
1732 | ||
c8965800 | 1733 | static int rtsp_read_packet(AVFormatContext *s, AVPacket *pkt) |
1617ad97 FB |
1734 | { |
1735 | RTSPState *rt = s->priv_data; | |
98713182 | 1736 | int ret; |
30e79845 RB |
1737 | RTSPMessageHeader reply1, *reply = &reply1; |
1738 | char cmd[1024]; | |
8b1ab7bf | 1739 | |
572c6a38 | 1740 | if (rt->server_type == RTSP_SERVER_REAL) { |
1256d16b | 1741 | int i; |
572c6a38 | 1742 | enum AVDiscard cache[MAX_STREAMS]; |
1256d16b | 1743 | |
572c6a38 RB |
1744 | for (i = 0; i < s->nb_streams; i++) |
1745 | cache[i] = s->streams[i]->discard; | |
1746 | ||
1747 | if (!rt->need_subscription) { | |
1748 | if (memcmp (cache, rt->real_setup_cache, | |
1749 | sizeof(enum AVDiscard) * s->nb_streams)) { | |
8b9457de | 1750 | snprintf(cmd, sizeof(cmd), |
7eaa646f RB |
1751 | "SET_PARAMETER %s RTSP/1.0\r\n" |
1752 | "Unsubscribe: %s\r\n", | |
00eb13e0 | 1753 | rt->control_uri, rt->last_subscription); |
3307e6ea | 1754 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
572c6a38 RB |
1755 | if (reply->status_code != RTSP_STATUS_OK) |
1756 | return AVERROR_INVALIDDATA; | |
1757 | rt->need_subscription = 1; | |
1758 | } | |
1256d16b | 1759 | } |
1256d16b | 1760 | |
572c6a38 RB |
1761 | if (rt->need_subscription) { |
1762 | int r, rule_nr, first = 1; | |
1763 | ||
1764 | memcpy(rt->real_setup_cache, cache, | |
1765 | sizeof(enum AVDiscard) * s->nb_streams); | |
1766 | rt->last_subscription[0] = 0; | |
1767 | ||
1768 | snprintf(cmd, sizeof(cmd), | |
1769 | "SET_PARAMETER %s RTSP/1.0\r\n" | |
1770 | "Subscribe: ", | |
00eb13e0 | 1771 | rt->control_uri); |
572c6a38 RB |
1772 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
1773 | rule_nr = 0; | |
1774 | for (r = 0; r < s->nb_streams; r++) { | |
1775 | if (s->streams[r]->priv_data == rt->rtsp_streams[i]) { | |
1776 | if (s->streams[r]->discard != AVDISCARD_ALL) { | |
1777 | if (!first) | |
1778 | av_strlcat(rt->last_subscription, ",", | |
1779 | sizeof(rt->last_subscription)); | |
1780 | ff_rdt_subscribe_rule( | |
1781 | rt->last_subscription, | |
1782 | sizeof(rt->last_subscription), i, rule_nr); | |
1783 | first = 0; | |
1784 | } | |
1785 | rule_nr++; | |
1786 | } | |
1787 | } | |
1788 | } | |
1789 | av_strlcatf(cmd, sizeof(cmd), "%s\r\n", rt->last_subscription); | |
3307e6ea | 1790 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
572c6a38 RB |
1791 | if (reply->status_code != RTSP_STATUS_OK) |
1792 | return AVERROR_INVALIDDATA; | |
1793 | rt->need_subscription = 0; | |
1794 | ||
c02fd3d2 | 1795 | if (rt->state == RTSP_STATE_STREAMING) |
572c6a38 RB |
1796 | rtsp_read_play (s); |
1797 | } | |
1256d16b RB |
1798 | } |
1799 | ||
d7250724 | 1800 | ret = rtsp_fetch_packet(s, pkt); |
c8965800 | 1801 | if (ret < 0) |
98713182 | 1802 | return ret; |
30e79845 RB |
1803 | |
1804 | /* send dummy request to keep TCP connection alive */ | |
1805 | if ((rt->server_type == RTSP_SERVER_WMS || | |
1806 | rt->server_type == RTSP_SERVER_REAL) && | |
1807 | (av_gettime() - rt->last_cmd_time) / 1000000 >= rt->timeout / 2) { | |
1808 | if (rt->server_type == RTSP_SERVER_WMS) { | |
1809 | snprintf(cmd, sizeof(cmd) - 1, | |
1810 | "GET_PARAMETER %s RTSP/1.0\r\n", | |
00eb13e0 | 1811 | rt->control_uri); |
3307e6ea | 1812 | ff_rtsp_send_cmd_async(s, cmd); |
30e79845 | 1813 | } else { |
3307e6ea | 1814 | ff_rtsp_send_cmd_async(s, "OPTIONS * RTSP/1.0\r\n"); |
30e79845 RB |
1815 | } |
1816 | } | |
1817 | ||
8b1ab7bf | 1818 | return 0; |
1617ad97 FB |
1819 | } |
1820 | ||
ff762d6e FB |
1821 | /* pause the stream */ |
1822 | static int rtsp_read_pause(AVFormatContext *s) | |
b7b8fc34 | 1823 | { |
ff762d6e | 1824 | RTSPState *rt = s->priv_data; |
a9e534d5 | 1825 | RTSPMessageHeader reply1, *reply = &reply1; |
b7b8fc34 FB |
1826 | char cmd[1024]; |
1827 | ||
b7b8fc34 | 1828 | rt = s->priv_data; |
115329f1 | 1829 | |
c02fd3d2 | 1830 | if (rt->state != RTSP_STATE_STREAMING) |
ff762d6e | 1831 | return 0; |
2e889ae4 | 1832 | else if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) { |
99b2ac07 RB |
1833 | snprintf(cmd, sizeof(cmd), |
1834 | "PAUSE %s RTSP/1.0\r\n", | |
00eb13e0 | 1835 | rt->control_uri); |
3307e6ea | 1836 | ff_rtsp_send_cmd(s, cmd, reply, NULL); |
99b2ac07 RB |
1837 | if (reply->status_code != RTSP_STATUS_OK) { |
1838 | return -1; | |
1839 | } | |
1256d16b | 1840 | } |
5f86057f RB |
1841 | rt->state = RTSP_STATE_PAUSED; |
1842 | return 0; | |
b7b8fc34 FB |
1843 | } |
1844 | ||
115329f1 | 1845 | static int rtsp_read_seek(AVFormatContext *s, int stream_index, |
7b3c1382 | 1846 | int64_t timestamp, int flags) |
ff762d6e FB |
1847 | { |
1848 | RTSPState *rt = s->priv_data; | |
115329f1 | 1849 | |
c8965800 RB |
1850 | rt->seek_timestamp = av_rescale_q(timestamp, |
1851 | s->streams[stream_index]->time_base, | |
1852 | AV_TIME_BASE_Q); | |
ff762d6e FB |
1853 | switch(rt->state) { |
1854 | default: | |
1855 | case RTSP_STATE_IDLE: | |
1856 | break; | |
c02fd3d2 | 1857 | case RTSP_STATE_STREAMING: |
ec606b36 LB |
1858 | if (rtsp_read_pause(s) != 0) |
1859 | return -1; | |
1860 | rt->state = RTSP_STATE_SEEKING; | |
ff762d6e FB |
1861 | if (rtsp_read_play(s) != 0) |
1862 | return -1; | |
1863 | break; | |
1864 | case RTSP_STATE_PAUSED: | |
1865 | rt->state = RTSP_STATE_IDLE; | |
1866 | break; | |
1867 | } | |
1868 | return 0; | |
1869 | } | |
1870 | ||
1617ad97 FB |
1871 | static int rtsp_read_close(AVFormatContext *s) |
1872 | { | |
1873 | RTSPState *rt = s->priv_data; | |
1617ad97 FB |
1874 | char cmd[1024]; |
1875 | ||
b6892136 | 1876 | #if 0 |
1617ad97 | 1877 | /* NOTE: it is valid to flush the buffer here */ |
90abbdba | 1878 | if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) { |
1617ad97 FB |
1879 | url_fclose(&rt->rtsp_gb); |
1880 | } | |
b6892136 | 1881 | #endif |
115329f1 | 1882 | snprintf(cmd, sizeof(cmd), |
b6892136 | 1883 | "TEARDOWN %s RTSP/1.0\r\n", |
1617ad97 | 1884 | s->filename); |
3307e6ea | 1885 | ff_rtsp_send_cmd_async(s, cmd); |
1617ad97 | 1886 | |
3307e6ea | 1887 | ff_rtsp_close_streams(s); |
1617ad97 FB |
1888 | url_close(rt->rtsp_hd); |
1889 | return 0; | |
1890 | } | |
1891 | ||
d2a067d1 | 1892 | AVInputFormat rtsp_demuxer = { |
1617ad97 | 1893 | "rtsp", |
bde15e74 | 1894 | NULL_IF_CONFIG_SMALL("RTSP input format"), |
1617ad97 FB |
1895 | sizeof(RTSPState), |
1896 | rtsp_probe, | |
1897 | rtsp_read_header, | |
1898 | rtsp_read_packet, | |
1899 | rtsp_read_close, | |
ff762d6e | 1900 | rtsp_read_seek, |
bb76a117 | 1901 | .flags = AVFMT_NOFILE, |
ff762d6e FB |
1902 | .read_play = rtsp_read_play, |
1903 | .read_pause = rtsp_read_pause, | |
1617ad97 | 1904 | }; |
96862926 | 1905 | #endif |
1617ad97 | 1906 | |
cb1fdc61 | 1907 | static int sdp_probe(AVProbeData *p1) |
93ced3e8 | 1908 | { |
0e1ceacd | 1909 | const char *p = p1->buf, *p_end = p1->buf + p1->buf_size; |
cb1fdc61 FB |
1910 | |
1911 | /* we look for a line beginning "c=IN IP4" */ | |
0e1ceacd | 1912 | while (p < p_end && *p != '\0') { |
c8965800 RB |
1913 | if (p + sizeof("c=IN IP4") - 1 < p_end && |
1914 | av_strstart(p, "c=IN IP4", NULL)) | |
cb1fdc61 | 1915 | return AVPROBE_SCORE_MAX / 2; |
0e1ceacd | 1916 | |
c8965800 | 1917 | while (p < p_end - 1 && *p != '\n') p++; |
0e1ceacd | 1918 | if (++p >= p_end) |
cb1fdc61 | 1919 | break; |
cb1fdc61 FB |
1920 | if (*p == '\r') |
1921 | p++; | |
1922 | } | |
93ced3e8 FB |
1923 | return 0; |
1924 | } | |
1925 | ||
1926 | #define SDP_MAX_SIZE 8192 | |
1927 | ||
c8965800 | 1928 | static int sdp_read_header(AVFormatContext *s, AVFormatParameters *ap) |
93ced3e8 | 1929 | { |
8b1ab7bf | 1930 | RTSPState *rt = s->priv_data; |
93ced3e8 FB |
1931 | RTSPStream *rtsp_st; |
1932 | int size, i, err; | |
1933 | char *content; | |
1934 | char url[1024]; | |
1935 | ||
1936 | /* read the whole sdp file */ | |
1937 | /* XXX: better loading */ | |
1938 | content = av_malloc(SDP_MAX_SIZE); | |
899681cd | 1939 | size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1); |
93ced3e8 FB |
1940 | if (size <= 0) { |
1941 | av_free(content); | |
1942 | return AVERROR_INVALIDDATA; | |
1943 | } | |
1944 | content[size] ='\0'; | |
1945 | ||
1946 | sdp_parse(s, content); | |
1947 | av_free(content); | |
1948 | ||
1949 | /* open each RTP stream */ | |
c8965800 | 1950 | for (i = 0; i < rt->nb_rtsp_streams; i++) { |
8b1ab7bf | 1951 | rtsp_st = rt->rtsp_streams[i]; |
115329f1 | 1952 | |
d2bf42be | 1953 | snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d", |
115329f1 | 1954 | inet_ntoa(rtsp_st->sdp_ip), |
93ced3e8 | 1955 | rtsp_st->sdp_port, |
d2bf42be | 1956 | rtsp_st->sdp_port, |
93ced3e8 | 1957 | rtsp_st->sdp_ttl); |
dbf30963 | 1958 | if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) { |
93ced3e8 FB |
1959 | err = AVERROR_INVALIDDATA; |
1960 | goto fail; | |
1961 | } | |
ee0cb67f | 1962 | if ((err = rtsp_open_transport_ctx(s, rtsp_st))) |
8b1ab7bf | 1963 | goto fail; |
93ced3e8 FB |
1964 | } |
1965 | return 0; | |
c8965800 | 1966 | fail: |
3307e6ea | 1967 | ff_rtsp_close_streams(s); |
93ced3e8 FB |
1968 | return err; |
1969 | } | |
1970 | ||
93ced3e8 FB |
1971 | static int sdp_read_close(AVFormatContext *s) |
1972 | { | |
3307e6ea | 1973 | ff_rtsp_close_streams(s); |
93ced3e8 FB |
1974 | return 0; |
1975 | } | |
1976 | ||
ff70e601 | 1977 | AVInputFormat sdp_demuxer = { |
93ced3e8 | 1978 | "sdp", |
bde15e74 | 1979 | NULL_IF_CONFIG_SMALL("SDP"), |
93ced3e8 FB |
1980 | sizeof(RTSPState), |
1981 | sdp_probe, | |
1982 | sdp_read_header, | |
d7250724 | 1983 | rtsp_fetch_packet, |
93ced3e8 FB |
1984 | sdp_read_close, |
1985 | }; |