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" |
1a30d541 | 40 | #include "rtp_asf.h" |
e6327fba | 41 | #include "rtp_vorbis.h" |
4934884a | 42 | |
1617ad97 | 43 | //#define DEBUG |
b6892136 | 44 | //#define DEBUG_RTP_TCP |
1617ad97 | 45 | |
ff762d6e FB |
46 | static int rtsp_read_play(AVFormatContext *s); |
47 | ||
c482500f | 48 | #if LIBAVFORMAT_VERSION_INT < (53 << 16) |
90abbdba | 49 | int rtsp_default_protocols = (1 << RTSP_LOWER_TRANSPORT_UDP); |
c482500f | 50 | #endif |
85fb7b34 | 51 | |
1617ad97 FB |
52 | static int rtsp_probe(AVProbeData *p) |
53 | { | |
f7d78f36 | 54 | if (av_strstart(p->filename, "rtsp:", NULL)) |
1617ad97 FB |
55 | return AVPROBE_SCORE_MAX; |
56 | return 0; | |
57 | } | |
58 | ||
1ef36a70 | 59 | #define SPACE_CHARS " \t\r\n" |
da1e126e RB |
60 | /* we use memchr() instead of strchr() here because strchr() will return |
61 | * the terminating '\0' of SPACE_CHARS instead of NULL if c is '\0'. */ | |
62 | #define redir_isspace(c) memchr(SPACE_CHARS, c, 4) | |
1617ad97 FB |
63 | static void skip_spaces(const char **pp) |
64 | { | |
65 | const char *p; | |
66 | p = *pp; | |
67 | while (redir_isspace(*p)) | |
68 | p++; | |
69 | *pp = p; | |
70 | } | |
71 | ||
1ef36a70 RB |
72 | static void get_word_until_chars(char *buf, int buf_size, |
73 | const char *sep, const char **pp) | |
1617ad97 FB |
74 | { |
75 | const char *p; | |
76 | char *q; | |
77 | ||
78 | p = *pp; | |
79 | skip_spaces(&p); | |
80 | q = buf; | |
81 | while (!strchr(sep, *p) && *p != '\0') { | |
82 | if ((q - buf) < buf_size - 1) | |
83 | *q++ = *p; | |
84 | p++; | |
85 | } | |
86 | if (buf_size > 0) | |
87 | *q = '\0'; | |
88 | *pp = p; | |
89 | } | |
90 | ||
1ef36a70 RB |
91 | static void get_word_sep(char *buf, int buf_size, const char *sep, |
92 | const char **pp) | |
1617ad97 | 93 | { |
1ef36a70 RB |
94 | if (**pp == '/') (*pp)++; |
95 | get_word_until_chars(buf, buf_size, sep, pp); | |
96 | } | |
1617ad97 | 97 | |
1ef36a70 RB |
98 | static void get_word(char *buf, int buf_size, const char **pp) |
99 | { | |
100 | get_word_until_chars(buf, buf_size, SPACE_CHARS, pp); | |
1617ad97 FB |
101 | } |
102 | ||
93ced3e8 FB |
103 | /* parse the rtpmap description: <codec_name>/<clock_rate>[/<other |
104 | params>] */ | |
4934884a | 105 | static int sdp_parse_rtpmap(AVCodecContext *codec, RTSPStream *rtsp_st, int payload_type, const char *p) |
93ced3e8 FB |
106 | { |
107 | char buf[256]; | |
d1ccf0e0 RD |
108 | int i; |
109 | AVCodec *c; | |
7b49ce2e | 110 | const char *c_name; |
93ced3e8 | 111 | |
d1ccf0e0 RD |
112 | /* Loop into AVRtpDynamicPayloadTypes[] and AVRtpPayloadTypes[] and |
113 | see if we can handle this kind of payload */ | |
93ced3e8 | 114 | get_word_sep(buf, sizeof(buf), "/", &p); |
d1ccf0e0 | 115 | if (payload_type >= RTP_PT_PRIVATE) { |
4934884a RM |
116 | RTPDynamicProtocolHandler *handler= RTPFirstDynamicPayloadHandler; |
117 | while(handler) { | |
743b3890 | 118 | if (!strcasecmp(buf, handler->enc_name) && (codec->codec_type == handler->codec_type)) { |
4934884a RM |
119 | codec->codec_id = handler->codec_id; |
120 | rtsp_st->dynamic_handler= handler; | |
121 | if(handler->open) { | |
122 | rtsp_st->dynamic_protocol_context= handler->open(); | |
123 | } | |
d1ccf0e0 RD |
124 | break; |
125 | } | |
4934884a RM |
126 | handler= handler->next; |
127 | } | |
93ced3e8 | 128 | } else { |
d1ccf0e0 RD |
129 | /* We are in a standard case ( from http://www.iana.org/assignments/rtp-parameters) */ |
130 | /* search into AVRtpPayloadTypes[] */ | |
7ed19d7f | 131 | codec->codec_id = ff_rtp_codec_id(buf, codec->codec_type); |
d1ccf0e0 RD |
132 | } |
133 | ||
134 | c = avcodec_find_decoder(codec->codec_id); | |
135 | if (c && c->name) | |
7b49ce2e | 136 | c_name = c->name; |
d1ccf0e0 RD |
137 | else |
138 | c_name = (char *)NULL; | |
139 | ||
140 | if (c_name) { | |
141 | get_word_sep(buf, sizeof(buf), "/", &p); | |
142 | i = atoi(buf); | |
143 | switch (codec->codec_type) { | |
144 | case CODEC_TYPE_AUDIO: | |
145 | av_log(codec, AV_LOG_DEBUG, " audio codec set to : %s\n", c_name); | |
146 | codec->sample_rate = RTSP_DEFAULT_AUDIO_SAMPLERATE; | |
147 | codec->channels = RTSP_DEFAULT_NB_AUDIO_CHANNELS; | |
148 | if (i > 0) { | |
149 | codec->sample_rate = i; | |
150 | get_word_sep(buf, sizeof(buf), "/", &p); | |
151 | i = atoi(buf); | |
152 | if (i > 0) | |
153 | codec->channels = i; | |
d0deedcb RM |
154 | // TODO: there is a bug here; if it is a mono stream, and less than 22000Hz, faad upconverts to stereo and twice the |
155 | // frequency. No problem, but the sample rate is being set here by the sdp line. Upcoming patch forthcoming. (rdm) | |
d1ccf0e0 RD |
156 | } |
157 | av_log(codec, AV_LOG_DEBUG, " audio samplerate set to : %i\n", codec->sample_rate); | |
158 | av_log(codec, AV_LOG_DEBUG, " audio channels set to : %i\n", codec->channels); | |
159 | break; | |
160 | case CODEC_TYPE_VIDEO: | |
161 | av_log(codec, AV_LOG_DEBUG, " video codec set to : %s\n", c_name); | |
162 | break; | |
163 | default: | |
164 | break; | |
165 | } | |
166 | return 0; | |
93ced3e8 | 167 | } |
d1ccf0e0 RD |
168 | |
169 | return -1; | |
93ced3e8 FB |
170 | } |
171 | ||
172 | /* return the length and optionnaly the data */ | |
173 | static int hex_to_data(uint8_t *data, const char *p) | |
174 | { | |
175 | int c, len, v; | |
176 | ||
177 | len = 0; | |
178 | v = 1; | |
179 | for(;;) { | |
180 | skip_spaces(&p); | |
6a8c8b36 | 181 | if (*p == '\0') |
93ced3e8 FB |
182 | break; |
183 | c = toupper((unsigned char)*p++); | |
184 | if (c >= '0' && c <= '9') | |
185 | c = c - '0'; | |
186 | else if (c >= 'A' && c <= 'F') | |
187 | c = c - 'A' + 10; | |
188 | else | |
189 | break; | |
190 | v = (v << 4) | c; | |
191 | if (v & 0x100) { | |
192 | if (data) | |
193 | data[len] = v; | |
194 | len++; | |
195 | v = 1; | |
196 | } | |
197 | } | |
198 | return len; | |
199 | } | |
200 | ||
e6327fba RB |
201 | static void sdp_parse_fmtp_config(AVCodecContext * codec, void *ctx, |
202 | char *attr, char *value) | |
d1ccf0e0 RD |
203 | { |
204 | switch (codec->codec_id) { | |
205 | case CODEC_ID_MPEG4: | |
cbee7a69 | 206 | case CODEC_ID_AAC: |
d1ccf0e0 RD |
207 | if (!strcmp(attr, "config")) { |
208 | /* decode the hexa encoded parameter */ | |
209 | int len = hex_to_data(NULL, value); | |
7d09a993 RB |
210 | if (codec->extradata) |
211 | av_free(codec->extradata); | |
d1ccf0e0 RD |
212 | codec->extradata = av_mallocz(len + FF_INPUT_BUFFER_PADDING_SIZE); |
213 | if (!codec->extradata) | |
214 | return; | |
215 | codec->extradata_size = len; | |
216 | hex_to_data(codec->extradata, value); | |
217 | } | |
218 | break; | |
e6327fba RB |
219 | case CODEC_ID_VORBIS: |
220 | ff_vorbis_parse_fmtp_config(codec, ctx, attr, value); | |
221 | break; | |
d1ccf0e0 RD |
222 | default: |
223 | break; | |
224 | } | |
225 | return; | |
226 | } | |
227 | ||
644e7acb | 228 | typedef struct { |
7b49ce2e | 229 | const char *str; |
d1ccf0e0 RD |
230 | uint16_t type; |
231 | uint32_t offset; | |
644e7acb | 232 | } AttrNameMap; |
d1ccf0e0 RD |
233 | |
234 | /* All known fmtp parmeters and the corresping RTPAttrTypeEnum */ | |
235 | #define ATTR_NAME_TYPE_INT 0 | |
236 | #define ATTR_NAME_TYPE_STR 1 | |
644e7acb | 237 | static const AttrNameMap attr_names[]= |
d1ccf0e0 | 238 | { |
be73a544 LA |
239 | {"SizeLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, sizelength)}, |
240 | {"IndexLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, indexlength)}, | |
241 | {"IndexDeltaLength", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, indexdeltalength)}, | |
242 | {"profile-level-id", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, profile_level_id)}, | |
243 | {"StreamType", ATTR_NAME_TYPE_INT, offsetof(RTPPayloadData, streamtype)}, | |
244 | {"mode", ATTR_NAME_TYPE_STR, offsetof(RTPPayloadData, mode)}, | |
d1ccf0e0 RD |
245 | {NULL, -1, -1}, |
246 | }; | |
247 | ||
d0deedcb RM |
248 | /** parse the attribute line from the fmtp a line of an sdp resonse. This is broken out as a function |
249 | * because it is used in rtp_h264.c, which is forthcoming. | |
250 | */ | |
251 | int rtsp_next_attr_and_value(const char **p, char *attr, int attr_size, char *value, int value_size) | |
252 | { | |
253 | skip_spaces(p); | |
78f731de | 254 | if(**p) { |
d0deedcb RM |
255 | get_word_sep(attr, attr_size, "=", p); |
256 | if (**p == '=') | |
257 | (*p)++; | |
258 | get_word_sep(value, value_size, ";", p); | |
259 | if (**p == ';') | |
260 | (*p)++; | |
261 | return 1; | |
262 | } | |
263 | return 0; | |
264 | } | |
265 | ||
d1ccf0e0 RD |
266 | /* parse a SDP line and save stream attributes */ |
267 | static void sdp_parse_fmtp(AVStream *st, const char *p) | |
93ced3e8 FB |
268 | { |
269 | char attr[256]; | |
373afbaf RB |
270 | /* Vorbis setup headers can be up to 12KB and are sent base64 |
271 | * encoded, giving a 12KB * (4/3) = 16KB FMTP line. */ | |
272 | char value[16384]; | |
d1ccf0e0 RD |
273 | int i; |
274 | ||
275 | RTSPStream *rtsp_st = st->priv_data; | |
01f4895c | 276 | AVCodecContext *codec = st->codec; |
be73a544 | 277 | RTPPayloadData *rtp_payload_data = &rtsp_st->rtp_payload_data; |
93ced3e8 FB |
278 | |
279 | /* loop on each attribute */ | |
1ad20f96 RM |
280 | while(rtsp_next_attr_and_value(&p, attr, sizeof(attr), value, sizeof(value))) |
281 | { | |
bb270c08 | 282 | /* grab the codec extra_data from the config parameter of the fmtp line */ |
e6327fba RB |
283 | sdp_parse_fmtp_config(codec, rtsp_st->dynamic_protocol_context, |
284 | attr, value); | |
d1ccf0e0 RD |
285 | /* Looking for a known attribute */ |
286 | for (i = 0; attr_names[i].str; ++i) { | |
287 | if (!strcasecmp(attr, attr_names[i].str)) { | |
288 | if (attr_names[i].type == ATTR_NAME_TYPE_INT) | |
289 | *(int *)((char *)rtp_payload_data + attr_names[i].offset) = atoi(value); | |
290 | else if (attr_names[i].type == ATTR_NAME_TYPE_STR) | |
291 | *(char **)((char *)rtp_payload_data + attr_names[i].offset) = av_strdup(value); | |
bb270c08 | 292 | } |
93ced3e8 | 293 | } |
93ced3e8 FB |
294 | } |
295 | } | |
296 | ||
31693e00 RM |
297 | /** Parse a string \p in the form of Range:npt=xx-xx, and determine the start |
298 | * and end time. | |
299 | * Used for seeking in the rtp stream. | |
300 | */ | |
301 | static void rtsp_parse_range_npt(const char *p, int64_t *start, int64_t *end) | |
302 | { | |
303 | char buf[256]; | |
304 | ||
305 | skip_spaces(&p); | |
f7d78f36 | 306 | if (!av_stristart(p, "npt=", &p)) |
31693e00 RM |
307 | return; |
308 | ||
309 | *start = AV_NOPTS_VALUE; | |
310 | *end = AV_NOPTS_VALUE; | |
311 | ||
312 | get_word_sep(buf, sizeof(buf), "-", &p); | |
313 | *start = parse_date(buf, 1); | |
314 | if (*p == '-') { | |
315 | p++; | |
316 | get_word_sep(buf, sizeof(buf), "-", &p); | |
317 | *end = parse_date(buf, 1); | |
318 | } | |
319 | // av_log(NULL, AV_LOG_DEBUG, "Range Start: %lld\n", *start); | |
320 | // av_log(NULL, AV_LOG_DEBUG, "Range End: %lld\n", *end); | |
321 | } | |
322 | ||
93ced3e8 FB |
323 | typedef struct SDPParseState { |
324 | /* SDP only */ | |
325 | struct in_addr default_ip; | |
326 | int default_ttl; | |
cb760a47 | 327 | int skip_media; ///< set if an unknown m= line occurs |
93ced3e8 FB |
328 | } SDPParseState; |
329 | ||
330 | static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1, | |
1617ad97 FB |
331 | int letter, const char *buf) |
332 | { | |
8b1ab7bf | 333 | RTSPState *rt = s->priv_data; |
1617ad97 FB |
334 | char buf1[64], st_type[64]; |
335 | const char *p; | |
fb65d2ca DP |
336 | enum CodecType codec_type; |
337 | int payload_type, i; | |
1617ad97 FB |
338 | AVStream *st; |
339 | RTSPStream *rtsp_st; | |
93ced3e8 FB |
340 | struct in_addr sdp_ip; |
341 | int ttl; | |
342 | ||
67c9cd69 | 343 | dprintf(s, "sdp: %c='%s'\n", letter, buf); |
1617ad97 FB |
344 | |
345 | p = buf; | |
cb760a47 RB |
346 | if (s1->skip_media && letter != 'm') |
347 | return; | |
1617ad97 | 348 | switch(letter) { |
93ced3e8 FB |
349 | case 'c': |
350 | get_word(buf1, sizeof(buf1), &p); | |
351 | if (strcmp(buf1, "IN") != 0) | |
352 | return; | |
353 | get_word(buf1, sizeof(buf1), &p); | |
354 | if (strcmp(buf1, "IP4") != 0) | |
355 | return; | |
356 | get_word_sep(buf1, sizeof(buf1), "/", &p); | |
357 | if (inet_aton(buf1, &sdp_ip) == 0) | |
358 | return; | |
359 | ttl = 16; | |
360 | if (*p == '/') { | |
361 | p++; | |
362 | get_word_sep(buf1, sizeof(buf1), "/", &p); | |
363 | ttl = atoi(buf1); | |
364 | } | |
365 | if (s->nb_streams == 0) { | |
366 | s1->default_ip = sdp_ip; | |
367 | s1->default_ttl = ttl; | |
368 | } else { | |
369 | st = s->streams[s->nb_streams - 1]; | |
370 | rtsp_st = st->priv_data; | |
371 | rtsp_st->sdp_ip = sdp_ip; | |
372 | rtsp_st->sdp_ttl = ttl; | |
373 | } | |
374 | break; | |
1617ad97 | 375 | case 's': |
da61e413 | 376 | av_metadata_set(&s->metadata, "title", p); |
1617ad97 FB |
377 | break; |
378 | case 'i': | |
379 | if (s->nb_streams == 0) { | |
da61e413 | 380 | av_metadata_set(&s->metadata, "comment", p); |
1617ad97 FB |
381 | break; |
382 | } | |
383 | break; | |
384 | case 'm': | |
385 | /* new stream */ | |
cb760a47 | 386 | s1->skip_media = 0; |
1617ad97 FB |
387 | get_word(st_type, sizeof(st_type), &p); |
388 | if (!strcmp(st_type, "audio")) { | |
389 | codec_type = CODEC_TYPE_AUDIO; | |
390 | } else if (!strcmp(st_type, "video")) { | |
391 | codec_type = CODEC_TYPE_VIDEO; | |
090438cc RB |
392 | } else if (!strcmp(st_type, "application")) { |
393 | codec_type = CODEC_TYPE_DATA; | |
1617ad97 | 394 | } else { |
cb760a47 | 395 | s1->skip_media = 1; |
1617ad97 FB |
396 | return; |
397 | } | |
1617ad97 FB |
398 | rtsp_st = av_mallocz(sizeof(RTSPStream)); |
399 | if (!rtsp_st) | |
400 | return; | |
8b1ab7bf FB |
401 | rtsp_st->stream_index = -1; |
402 | dynarray_add(&rt->rtsp_streams, &rt->nb_rtsp_streams, rtsp_st); | |
93ced3e8 FB |
403 | |
404 | rtsp_st->sdp_ip = s1->default_ip; | |
405 | rtsp_st->sdp_ttl = s1->default_ttl; | |
406 | ||
93ced3e8 FB |
407 | get_word(buf1, sizeof(buf1), &p); /* port */ |
408 | rtsp_st->sdp_port = atoi(buf1); | |
409 | ||
410 | get_word(buf1, sizeof(buf1), &p); /* protocol (ignored) */ | |
115329f1 | 411 | |
93ced3e8 FB |
412 | /* XXX: handle list of formats */ |
413 | get_word(buf1, sizeof(buf1), &p); /* format list */ | |
414 | rtsp_st->sdp_payload_type = atoi(buf1); | |
93ced3e8 | 415 | |
7ed19d7f | 416 | if (!strcmp(ff_rtp_enc_name(rtsp_st->sdp_payload_type), "MP2T")) { |
8b1ab7bf FB |
417 | /* no corresponding stream */ |
418 | } else { | |
419 | st = av_new_stream(s, 0); | |
420 | if (!st) | |
421 | return; | |
422 | st->priv_data = rtsp_st; | |
423 | rtsp_st->stream_index = st->index; | |
01f4895c | 424 | st->codec->codec_type = codec_type; |
d1ccf0e0 | 425 | if (rtsp_st->sdp_payload_type < RTP_PT_PRIVATE) { |
8b1ab7bf | 426 | /* if standard payload type, we can find the codec right now */ |
bf6d9818 | 427 | ff_rtp_get_codec_info(st->codec, rtsp_st->sdp_payload_type); |
8b1ab7bf FB |
428 | } |
429 | } | |
1617ad97 | 430 | /* put a default control url */ |
75e61b0e | 431 | av_strlcpy(rtsp_st->control_url, s->filename, sizeof(rtsp_st->control_url)); |
1617ad97 FB |
432 | break; |
433 | case 'a': | |
f7d78f36 | 434 | if (av_strstart(p, "control:", &p) && s->nb_streams > 0) { |
1617ad97 FB |
435 | char proto[32]; |
436 | /* get the control url */ | |
437 | st = s->streams[s->nb_streams - 1]; | |
438 | rtsp_st = st->priv_data; | |
115329f1 | 439 | |
1617ad97 | 440 | /* XXX: may need to add full url resolution */ |
6ba5cbc6 | 441 | url_split(proto, sizeof(proto), NULL, 0, NULL, 0, NULL, NULL, 0, p); |
1617ad97 FB |
442 | if (proto[0] == '\0') { |
443 | /* relative control URL */ | |
75e61b0e MR |
444 | av_strlcat(rtsp_st->control_url, "/", sizeof(rtsp_st->control_url)); |
445 | av_strlcat(rtsp_st->control_url, p, sizeof(rtsp_st->control_url)); | |
1617ad97 | 446 | } else { |
75e61b0e | 447 | av_strlcpy(rtsp_st->control_url, p, sizeof(rtsp_st->control_url)); |
1617ad97 | 448 | } |
83d14c85 | 449 | } else if (av_strstart(p, "rtpmap:", &p) && s->nb_streams > 0) { |
93ced3e8 | 450 | /* NOTE: rtpmap is only supported AFTER the 'm=' tag */ |
115329f1 | 451 | get_word(buf1, sizeof(buf1), &p); |
93ced3e8 | 452 | payload_type = atoi(buf1); |
83d14c85 | 453 | st = s->streams[s->nb_streams - 1]; |
ff16f551 RB |
454 | rtsp_st = st->priv_data; |
455 | sdp_parse_rtpmap(st->codec, rtsp_st, payload_type, p); | |
f7d78f36 | 456 | } else if (av_strstart(p, "fmtp:", &p)) { |
93ced3e8 | 457 | /* NOTE: fmtp is only supported AFTER the 'a=rtpmap:xxx' tag */ |
115329f1 | 458 | get_word(buf1, sizeof(buf1), &p); |
93ced3e8 FB |
459 | payload_type = atoi(buf1); |
460 | for(i = 0; i < s->nb_streams;i++) { | |
461 | st = s->streams[i]; | |
462 | rtsp_st = st->priv_data; | |
463 | if (rtsp_st->sdp_payload_type == payload_type) { | |
4934884a | 464 | if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) { |
7b2a0708 | 465 | if(!rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf)) { |
4934884a RM |
466 | sdp_parse_fmtp(st, p); |
467 | } | |
468 | } else { | |
ed787542 | 469 | sdp_parse_fmtp(st, p); |
4934884a | 470 | } |
93ced3e8 FB |
471 | } |
472 | } | |
f7d78f36 | 473 | } else if(av_strstart(p, "framesize:", &p)) { |
d0deedcb RM |
474 | // let dynamic protocol handlers have a stab at the line. |
475 | get_word(buf1, sizeof(buf1), &p); | |
476 | payload_type = atoi(buf1); | |
477 | for(i = 0; i < s->nb_streams;i++) { | |
478 | st = s->streams[i]; | |
479 | rtsp_st = st->priv_data; | |
480 | if (rtsp_st->sdp_payload_type == payload_type) { | |
481 | if(rtsp_st->dynamic_handler && rtsp_st->dynamic_handler->parse_sdp_a_line) { | |
7b2a0708 | 482 | rtsp_st->dynamic_handler->parse_sdp_a_line(s, i, rtsp_st->dynamic_protocol_context, buf); |
d0deedcb RM |
483 | } |
484 | } | |
485 | } | |
f7d78f36 | 486 | } else if(av_strstart(p, "range:", &p)) { |
31693e00 RM |
487 | int64_t start, end; |
488 | ||
489 | // this is so that seeking on a streamed file can work. | |
490 | rtsp_parse_range_npt(p, &start, &end); | |
491 | s->start_time= start; | |
492 | s->duration= (end==AV_NOPTS_VALUE)?AV_NOPTS_VALUE:end-start; // AV_NOPTS_VALUE means live broadcast (and can't seek) | |
119b4668 RB |
493 | } else if (av_strstart(p, "IsRealDataType:integer;",&p)) { |
494 | if (atoi(p) == 1) | |
495 | rt->transport = RTSP_TRANSPORT_RDT; | |
1a30d541 RB |
496 | } else { |
497 | if (rt->server_type == RTSP_SERVER_WMS) | |
498 | ff_wms_parse_sdp_a_line(s, p); | |
499 | if (s->nb_streams > 0) { | |
c4a3d032 RB |
500 | if (rt->server_type == RTSP_SERVER_REAL) |
501 | ff_real_parse_sdp_a_line(s, s->nb_streams - 1, p); | |
502 | ||
503 | rtsp_st = s->streams[s->nb_streams - 1]->priv_data; | |
504 | if (rtsp_st->dynamic_handler && | |
505 | rtsp_st->dynamic_handler->parse_sdp_a_line) | |
506 | rtsp_st->dynamic_handler->parse_sdp_a_line(s, s->nb_streams - 1, | |
507 | rtsp_st->dynamic_protocol_context, buf); | |
1a30d541 | 508 | } |
1617ad97 FB |
509 | } |
510 | break; | |
511 | } | |
512 | } | |
513 | ||
5c91a675 | 514 | static int sdp_parse(AVFormatContext *s, const char *content) |
1617ad97 FB |
515 | { |
516 | const char *p; | |
517 | int letter; | |
9211bcdd RB |
518 | /* Some SDP lines, particularly for Realmedia or ASF RTSP streams, |
519 | * contain long SDP lines containing complete ASF Headers (several | |
520 | * kB) or arrays of MDPR (RM stream descriptor) headers plus | |
521 | * "rulebooks" describing their properties. Therefore, the SDP line | |
373afbaf RB |
522 | * buffer is large. |
523 | * | |
524 | * The Vorbis FMTP line can be up to 16KB - see sdp_parse_fmtp. */ | |
525 | char buf[16384], *q; | |
93ced3e8 | 526 | SDPParseState sdp_parse_state, *s1 = &sdp_parse_state; |
115329f1 | 527 | |
93ced3e8 | 528 | memset(s1, 0, sizeof(SDPParseState)); |
1617ad97 FB |
529 | p = content; |
530 | for(;;) { | |
531 | skip_spaces(&p); | |
532 | letter = *p; | |
533 | if (letter == '\0') | |
534 | break; | |
535 | p++; | |
536 | if (*p != '=') | |
537 | goto next_line; | |
538 | p++; | |
539 | /* get the content */ | |
540 | q = buf; | |
b6892136 | 541 | while (*p != '\n' && *p != '\r' && *p != '\0') { |
1617ad97 FB |
542 | if ((q - buf) < sizeof(buf) - 1) |
543 | *q++ = *p; | |
544 | p++; | |
545 | } | |
546 | *q = '\0'; | |
93ced3e8 | 547 | sdp_parse_line(s, s1, letter, buf); |
1617ad97 FB |
548 | next_line: |
549 | while (*p != '\n' && *p != '\0') | |
550 | p++; | |
551 | if (*p == '\n') | |
552 | p++; | |
553 | } | |
554 | return 0; | |
555 | } | |
556 | ||
557 | static void rtsp_parse_range(int *min_ptr, int *max_ptr, const char **pp) | |
558 | { | |
559 | const char *p; | |
560 | int v; | |
561 | ||
562 | p = *pp; | |
563 | skip_spaces(&p); | |
564 | v = strtol(p, (char **)&p, 10); | |
565 | if (*p == '-') { | |
566 | p++; | |
567 | *min_ptr = v; | |
568 | v = strtol(p, (char **)&p, 10); | |
569 | *max_ptr = v; | |
570 | } else { | |
571 | *min_ptr = v; | |
572 | *max_ptr = v; | |
573 | } | |
574 | *pp = p; | |
575 | } | |
576 | ||
577 | /* XXX: only one transport specification is parsed */ | |
a9e534d5 | 578 | static void rtsp_parse_transport(RTSPMessageHeader *reply, const char *p) |
1617ad97 FB |
579 | { |
580 | char transport_protocol[16]; | |
581 | char profile[16]; | |
582 | char lower_transport[16]; | |
583 | char parameter[16]; | |
584 | RTSPTransportField *th; | |
585 | char buf[256]; | |
115329f1 | 586 | |
1617ad97 | 587 | reply->nb_transports = 0; |
115329f1 | 588 | |
1617ad97 FB |
589 | for(;;) { |
590 | skip_spaces(&p); | |
591 | if (*p == '\0') | |
592 | break; | |
593 | ||
594 | th = &reply->transports[reply->nb_transports]; | |
595 | ||
115329f1 | 596 | get_word_sep(transport_protocol, sizeof(transport_protocol), |
1617ad97 | 597 | "/", &p); |
e1502118 | 598 | if (!strcasecmp (transport_protocol, "rtp")) { |
7ecc634e LB |
599 | get_word_sep(profile, sizeof(profile), "/;,", &p); |
600 | lower_transport[0] = '\0'; | |
601 | /* rtp/avp/<protocol> */ | |
602 | if (*p == '/') { | |
7ecc634e LB |
603 | get_word_sep(lower_transport, sizeof(lower_transport), |
604 | ";,", &p); | |
119b4668 RB |
605 | } |
606 | th->transport = RTSP_TRANSPORT_RTP; | |
607 | } else if (!strcasecmp (transport_protocol, "x-pn-tng") || | |
608 | !strcasecmp (transport_protocol, "x-real-rdt")) { | |
7ecc634e | 609 | /* x-pn-tng/<protocol> */ |
e1502118 LB |
610 | get_word_sep(lower_transport, sizeof(lower_transport), "/;,", &p); |
611 | profile[0] = '\0'; | |
119b4668 | 612 | th->transport = RTSP_TRANSPORT_RDT; |
1617ad97 | 613 | } |
b6892136 | 614 | if (!strcasecmp(lower_transport, "TCP")) |
90abbdba | 615 | th->lower_transport = RTSP_LOWER_TRANSPORT_TCP; |
1617ad97 | 616 | else |
90abbdba | 617 | th->lower_transport = RTSP_LOWER_TRANSPORT_UDP; |
115329f1 | 618 | |
1617ad97 FB |
619 | if (*p == ';') |
620 | p++; | |
621 | /* get each parameter */ | |
622 | while (*p != '\0' && *p != ',') { | |
623 | get_word_sep(parameter, sizeof(parameter), "=;,", &p); | |
624 | if (!strcmp(parameter, "port")) { | |
625 | if (*p == '=') { | |
626 | p++; | |
627 | rtsp_parse_range(&th->port_min, &th->port_max, &p); | |
628 | } | |
629 | } else if (!strcmp(parameter, "client_port")) { | |
630 | if (*p == '=') { | |
631 | p++; | |
115329f1 | 632 | rtsp_parse_range(&th->client_port_min, |
1617ad97 FB |
633 | &th->client_port_max, &p); |
634 | } | |
635 | } else if (!strcmp(parameter, "server_port")) { | |
636 | if (*p == '=') { | |
637 | p++; | |
115329f1 | 638 | rtsp_parse_range(&th->server_port_min, |
1617ad97 FB |
639 | &th->server_port_max, &p); |
640 | } | |
641 | } else if (!strcmp(parameter, "interleaved")) { | |
642 | if (*p == '=') { | |
643 | p++; | |
115329f1 | 644 | rtsp_parse_range(&th->interleaved_min, |
1617ad97 FB |
645 | &th->interleaved_max, &p); |
646 | } | |
647 | } else if (!strcmp(parameter, "multicast")) { | |
90abbdba RB |
648 | if (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP) |
649 | th->lower_transport = RTSP_LOWER_TRANSPORT_UDP_MULTICAST; | |
1617ad97 FB |
650 | } else if (!strcmp(parameter, "ttl")) { |
651 | if (*p == '=') { | |
652 | p++; | |
653 | th->ttl = strtol(p, (char **)&p, 10); | |
654 | } | |
655 | } else if (!strcmp(parameter, "destination")) { | |
656 | struct in_addr ipaddr; | |
657 | ||
658 | if (*p == '=') { | |
659 | p++; | |
660 | get_word_sep(buf, sizeof(buf), ";,", &p); | |
115329f1 | 661 | if (inet_aton(buf, &ipaddr)) |
1617ad97 FB |
662 | th->destination = ntohl(ipaddr.s_addr); |
663 | } | |
664 | } | |
665 | while (*p != ';' && *p != '\0' && *p != ',') | |
666 | p++; | |
667 | if (*p == ';') | |
668 | p++; | |
669 | } | |
670 | if (*p == ',') | |
671 | p++; | |
672 | ||
673 | reply->nb_transports++; | |
674 | } | |
675 | } | |
676 | ||
a9e534d5 | 677 | void rtsp_parse_line(RTSPMessageHeader *reply, const char *buf) |
1617ad97 FB |
678 | { |
679 | const char *p; | |
680 | ||
681 | /* NOTE: we do case independent match for broken servers */ | |
682 | p = buf; | |
f7d78f36 | 683 | if (av_stristart(p, "Session:", &p)) { |
30e79845 | 684 | int t; |
1617ad97 | 685 | get_word_sep(reply->session_id, sizeof(reply->session_id), ";", &p); |
30e79845 RB |
686 | if (av_stristart(p, ";timeout=", &p) && |
687 | (t = strtol(p, NULL, 10)) > 0) { | |
688 | reply->timeout = t; | |
689 | } | |
f7d78f36 | 690 | } else if (av_stristart(p, "Content-Length:", &p)) { |
1617ad97 | 691 | reply->content_length = strtol(p, NULL, 10); |
f7d78f36 | 692 | } else if (av_stristart(p, "Transport:", &p)) { |
1617ad97 | 693 | rtsp_parse_transport(reply, p); |
f7d78f36 | 694 | } else if (av_stristart(p, "CSeq:", &p)) { |
1617ad97 | 695 | reply->seq = strtol(p, NULL, 10); |
f7d78f36 | 696 | } else if (av_stristart(p, "Range:", &p)) { |
31693e00 | 697 | rtsp_parse_range_npt(p, &reply->range_start, &reply->range_end); |
30aa6aed RB |
698 | } else if (av_stristart(p, "RealChallenge1:", &p)) { |
699 | skip_spaces(&p); | |
700 | av_strlcpy(reply->real_challenge, p, sizeof(reply->real_challenge)); | |
7a86bafa RB |
701 | } else if (av_stristart(p, "Server:", &p)) { |
702 | skip_spaces(&p); | |
703 | av_strlcpy(reply->server, p, sizeof(reply->server)); | |
fccb1770 RB |
704 | } else if (av_stristart(p, "Notice:", &p) || |
705 | av_stristart(p, "X-Notice:", &p)) { | |
706 | reply->notice = strtol(p, NULL, 10); | |
1617ad97 FB |
707 | } |
708 | } | |
709 | ||
b7b8fc34 FB |
710 | /* skip a RTP/TCP interleaved packet */ |
711 | static void rtsp_skip_packet(AVFormatContext *s) | |
712 | { | |
713 | RTSPState *rt = s->priv_data; | |
714 | int ret, len, len1; | |
715 | uint8_t buf[1024]; | |
716 | ||
0e848977 | 717 | ret = url_read_complete(rt->rtsp_hd, buf, 3); |
b7b8fc34 FB |
718 | if (ret != 3) |
719 | return; | |
80fb8234 | 720 | len = AV_RB16(buf + 1); |
67c9cd69 BC |
721 | |
722 | dprintf(s, "skipping RTP packet len=%d\n", len); | |
723 | ||
b7b8fc34 FB |
724 | /* skip payload */ |
725 | while (len > 0) { | |
726 | len1 = len; | |
727 | if (len1 > sizeof(buf)) | |
728 | len1 = sizeof(buf); | |
0e848977 | 729 | ret = url_read_complete(rt->rtsp_hd, buf, len1); |
b7b8fc34 FB |
730 | if (ret != len1) |
731 | return; | |
732 | len -= len1; | |
733 | } | |
734 | } | |
1617ad97 | 735 | |
7e726132 RB |
736 | /** |
737 | * Read a RTSP message from the server, or prepare to read data | |
738 | * packets if we're reading data interleaved over the TCP/RTSP | |
739 | * connection as well. | |
740 | * | |
741 | * @param s RTSP demuxer context | |
742 | * @param reply pointer where the RTSP message header will be stored | |
743 | * @param content_ptr pointer where the RTSP message body, if any, will | |
744 | * be stored (length is in \p reply) | |
745 | * @param return_on_interleaved_data whether the function may return if we | |
746 | * encounter a data marker ('$'), which precedes data | |
747 | * packets over interleaved TCP/RTSP connections. If this | |
748 | * is set, this function will return 1 after encountering | |
749 | * a '$'. If it is not set, the function will skip any | |
750 | * data packets (if they are encountered), until a reply | |
751 | * has been fully parsed. If no more data is available | |
752 | * without parsing a reply, it will return an error. | |
753 | * | |
754 | * @returns 1 if a data packets is ready to be received, -1 on error, | |
755 | * and 0 on success. | |
756 | */ | |
757 | static int | |
29b9f58b | 758 | rtsp_read_reply (AVFormatContext *s, RTSPMessageHeader *reply, |
7e726132 | 759 | unsigned char **content_ptr, int return_on_interleaved_data) |
1617ad97 FB |
760 | { |
761 | RTSPState *rt = s->priv_data; | |
762 | char buf[4096], buf1[1024], *q; | |
763 | unsigned char ch; | |
764 | const char *p; | |
7e726132 | 765 | int ret, content_length, line_count = 0; |
1617ad97 FB |
766 | unsigned char *content = NULL; |
767 | ||
d541a7d2 | 768 | memset(reply, 0, sizeof(*reply)); |
1617ad97 | 769 | |
1617ad97 | 770 | /* parse reply (XXX: use buffers) */ |
1617ad97 FB |
771 | rt->last_reply[0] = '\0'; |
772 | for(;;) { | |
773 | q = buf; | |
774 | for(;;) { | |
0e848977 | 775 | ret = url_read_complete(rt->rtsp_hd, &ch, 1); |
7e726132 | 776 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 777 | dprintf(s, "ret=%d c=%02x [%c]\n", ret, ch, ch); |
7e726132 RB |
778 | #endif |
779 | if (ret != 1) | |
780 | return -1; | |
1617ad97 FB |
781 | if (ch == '\n') |
782 | break; | |
b7b8fc34 FB |
783 | if (ch == '$') { |
784 | /* XXX: only parse it if first char on line ? */ | |
7e726132 RB |
785 | if (return_on_interleaved_data) { |
786 | return 1; | |
787 | } else | |
b7b8fc34 FB |
788 | rtsp_skip_packet(s); |
789 | } else if (ch != '\r') { | |
1617ad97 FB |
790 | if ((q - buf) < sizeof(buf) - 1) |
791 | *q++ = ch; | |
792 | } | |
793 | } | |
794 | *q = '\0'; | |
67c9cd69 BC |
795 | |
796 | dprintf(s, "line='%s'\n", buf); | |
797 | ||
1617ad97 FB |
798 | /* test if last line */ |
799 | if (buf[0] == '\0') | |
800 | break; | |
801 | p = buf; | |
802 | if (line_count == 0) { | |
803 | /* get reply code */ | |
804 | get_word(buf1, sizeof(buf1), &p); | |
805 | get_word(buf1, sizeof(buf1), &p); | |
806 | reply->status_code = atoi(buf1); | |
807 | } else { | |
808 | rtsp_parse_line(reply, p); | |
75e61b0e MR |
809 | av_strlcat(rt->last_reply, p, sizeof(rt->last_reply)); |
810 | av_strlcat(rt->last_reply, "\n", sizeof(rt->last_reply)); | |
1617ad97 FB |
811 | } |
812 | line_count++; | |
813 | } | |
115329f1 | 814 | |
1617ad97 | 815 | if (rt->session_id[0] == '\0' && reply->session_id[0] != '\0') |
75e61b0e | 816 | av_strlcpy(rt->session_id, reply->session_id, sizeof(rt->session_id)); |
115329f1 | 817 | |
1617ad97 FB |
818 | content_length = reply->content_length; |
819 | if (content_length > 0) { | |
820 | /* leave some room for a trailing '\0' (useful for simple parsing) */ | |
821 | content = av_malloc(content_length + 1); | |
0e848977 | 822 | (void)url_read_complete(rt->rtsp_hd, content, content_length); |
1617ad97 FB |
823 | content[content_length] = '\0'; |
824 | } | |
825 | if (content_ptr) | |
826 | *content_ptr = content; | |
e2e2e7dd AB |
827 | else |
828 | av_free(content); | |
7e726132 | 829 | |
fccb1770 RB |
830 | /* EOS */ |
831 | if (reply->notice == 2101 /* End-of-Stream Reached */ || | |
832 | reply->notice == 2104 /* Start-of-Stream Reached */ || | |
833 | reply->notice == 2306 /* Continuous Feed Terminated */) | |
834 | rt->state = RTSP_STATE_IDLE; | |
835 | else if (reply->notice >= 4400 && reply->notice < 5500) | |
836 | return AVERROR(EIO); /* data or server error */ | |
837 | else if (reply->notice == 2401 /* Ticket Expired */ || | |
838 | (reply->notice >= 5500 && reply->notice < 5600) /* end of term */ ) | |
839 | return AVERROR(EPERM); | |
840 | ||
7e726132 | 841 | return 0; |
1617ad97 FB |
842 | } |
843 | ||
30e79845 | 844 | static void rtsp_send_cmd_async (AVFormatContext *s, |
29b9f58b RB |
845 | const char *cmd, RTSPMessageHeader *reply, |
846 | unsigned char **content_ptr) | |
847 | { | |
848 | RTSPState *rt = s->priv_data; | |
849 | char buf[4096], buf1[1024]; | |
850 | ||
851 | rt->seq++; | |
852 | av_strlcpy(buf, cmd, sizeof(buf)); | |
853 | snprintf(buf1, sizeof(buf1), "CSeq: %d\r\n", rt->seq); | |
854 | av_strlcat(buf, buf1, sizeof(buf)); | |
855 | if (rt->session_id[0] != '\0' && !strstr(cmd, "\nIf-Match:")) { | |
856 | snprintf(buf1, sizeof(buf1), "Session: %s\r\n", rt->session_id); | |
857 | av_strlcat(buf, buf1, sizeof(buf)); | |
858 | } | |
f9337897 RB |
859 | if (rt->auth_b64) |
860 | av_strlcatf(buf, sizeof(buf), | |
ba93ea6d RB |
861 | "Authorization: Basic %s\r\n", |
862 | rt->auth_b64); | |
29b9f58b | 863 | av_strlcat(buf, "\r\n", sizeof(buf)); |
67c9cd69 BC |
864 | |
865 | dprintf(s, "Sending:\n%s--\n", buf); | |
866 | ||
29b9f58b | 867 | url_write(rt->rtsp_hd, buf, strlen(buf)); |
30e79845 RB |
868 | rt->last_cmd_time = av_gettime(); |
869 | } | |
870 | ||
871 | static void rtsp_send_cmd (AVFormatContext *s, | |
872 | const char *cmd, RTSPMessageHeader *reply, | |
873 | unsigned char **content_ptr) | |
874 | { | |
875 | rtsp_send_cmd_async(s, cmd, reply, content_ptr); | |
29b9f58b | 876 | |
7e726132 | 877 | rtsp_read_reply(s, reply, content_ptr, 0); |
29b9f58b RB |
878 | } |
879 | ||
1617ad97 | 880 | |
8b1ab7bf FB |
881 | /* close and free RTSP streams */ |
882 | static void rtsp_close_streams(RTSPState *rt) | |
883 | { | |
884 | int i; | |
885 | RTSPStream *rtsp_st; | |
886 | ||
887 | for(i=0;i<rt->nb_rtsp_streams;i++) { | |
888 | rtsp_st = rt->rtsp_streams[i]; | |
889 | if (rtsp_st) { | |
0a861b6f | 890 | if (rtsp_st->transport_priv) { |
accc248f | 891 | if (rt->transport == RTSP_TRANSPORT_RDT) |
0a861b6f | 892 | ff_rdt_parse_close(rtsp_st->transport_priv); |
accc248f | 893 | else |
0a861b6f | 894 | rtp_parse_close(rtsp_st->transport_priv); |
accc248f | 895 | } |
8b1ab7bf FB |
896 | if (rtsp_st->rtp_handle) |
897 | url_close(rtsp_st->rtp_handle); | |
4934884a RM |
898 | if (rtsp_st->dynamic_handler && rtsp_st->dynamic_protocol_context) |
899 | rtsp_st->dynamic_handler->close(rtsp_st->dynamic_protocol_context); | |
8b1ab7bf | 900 | } |
8b1ab7bf FB |
901 | } |
902 | av_free(rt->rtsp_streams); | |
1a30d541 RB |
903 | if (rt->asf_ctx) { |
904 | av_close_input_stream (rt->asf_ctx); | |
905 | rt->asf_ctx = NULL; | |
906 | } | |
f9337897 | 907 | av_freep(&rt->auth_b64); |
8b1ab7bf FB |
908 | } |
909 | ||
ee0cb67f RB |
910 | static int |
911 | rtsp_open_transport_ctx(AVFormatContext *s, RTSPStream *rtsp_st) | |
912 | { | |
accc248f | 913 | RTSPState *rt = s->priv_data; |
ee0cb67f RB |
914 | AVStream *st = NULL; |
915 | ||
a6789dca RB |
916 | /* open the RTP context */ |
917 | if (rtsp_st->stream_index >= 0) | |
918 | st = s->streams[rtsp_st->stream_index]; | |
919 | if (!st) | |
920 | s->ctx_flags |= AVFMTCTX_NOHEADER; | |
accc248f RB |
921 | |
922 | if (rt->transport == RTSP_TRANSPORT_RDT) | |
0a861b6f | 923 | rtsp_st->transport_priv = ff_rdt_parse_open(s, st->index, |
accc248f RB |
924 | rtsp_st->dynamic_protocol_context, |
925 | rtsp_st->dynamic_handler); | |
926 | else | |
0a861b6f | 927 | rtsp_st->transport_priv = rtp_parse_open(s, st, rtsp_st->rtp_handle, |
5c918b27 RB |
928 | rtsp_st->sdp_payload_type, |
929 | &rtsp_st->rtp_payload_data); | |
a6789dca | 930 | |
0a861b6f | 931 | if (!rtsp_st->transport_priv) { |
a6789dca | 932 | return AVERROR(ENOMEM); |
accc248f | 933 | } else if (rt->transport != RTSP_TRANSPORT_RDT) { |
a6789dca | 934 | if(rtsp_st->dynamic_handler) { |
0a861b6f | 935 | rtp_parse_set_dynamic_protocol(rtsp_st->transport_priv, |
99a1d191 RB |
936 | rtsp_st->dynamic_protocol_context, |
937 | rtsp_st->dynamic_handler); | |
ee0cb67f | 938 | } |
a6789dca | 939 | } |
ee0cb67f RB |
940 | |
941 | return 0; | |
942 | } | |
943 | ||
53620bba RB |
944 | /** |
945 | * @returns 0 on success, <0 on error, 1 if protocol is unavailable. | |
946 | */ | |
947 | static int | |
e9dea59f | 948 | make_setup_request (AVFormatContext *s, const char *host, int port, |
90abbdba | 949 | int lower_transport, const char *real_challenge) |
1617ad97 FB |
950 | { |
951 | RTSPState *rt = s->priv_data; | |
f830c9a4 | 952 | int rtx, j, i, err, interleave = 0; |
1617ad97 | 953 | RTSPStream *rtsp_st; |
a9e534d5 | 954 | RTSPMessageHeader reply1, *reply = &reply1; |
53620bba | 955 | char cmd[2048]; |
e9dea59f RB |
956 | const char *trans_pref; |
957 | ||
119b4668 | 958 | if (rt->transport == RTSP_TRANSPORT_RDT) |
e9dea59f RB |
959 | trans_pref = "x-pn-tng"; |
960 | else | |
961 | trans_pref = "RTP/AVP"; | |
115329f1 | 962 | |
30e79845 RB |
963 | /* default timeout: 1 minute */ |
964 | rt->timeout = 60; | |
965 | ||
1617ad97 FB |
966 | /* for each stream, make the setup request */ |
967 | /* XXX: we assume the same server is used for the control of each | |
968 | RTSP stream */ | |
d1ccf0e0 RD |
969 | |
970 | for(j = RTSP_RTP_PORT_MIN, i = 0; i < rt->nb_rtsp_streams; ++i) { | |
1617ad97 FB |
971 | char transport[2048]; |
972 | ||
f830c9a4 RB |
973 | /** |
974 | * WMS serves all UDP data over a single connection, the RTX, which | |
975 | * isn't necessarily the first in the SDP but has to be the first | |
976 | * to be set up, else the second/third SETUP will fail with a 461. | |
977 | */ | |
978 | if (lower_transport == RTSP_LOWER_TRANSPORT_UDP && | |
979 | rt->server_type == RTSP_SERVER_WMS) { | |
980 | if (i == 0) { | |
981 | /* rtx first */ | |
982 | for (rtx = 0; rtx < rt->nb_rtsp_streams; rtx++) { | |
983 | int len = strlen(rt->rtsp_streams[rtx]->control_url); | |
984 | if (len >= 4 && | |
985 | !strcmp(rt->rtsp_streams[rtx]->control_url + len - 4, "/rtx")) | |
986 | break; | |
987 | } | |
988 | if (rtx == rt->nb_rtsp_streams) | |
989 | return -1; /* no RTX found */ | |
990 | rtsp_st = rt->rtsp_streams[rtx]; | |
991 | } else | |
992 | rtsp_st = rt->rtsp_streams[i > rtx ? i : i - 1]; | |
993 | } else | |
2fea9650 | 994 | rtsp_st = rt->rtsp_streams[i]; |
1617ad97 | 995 | |
1617ad97 | 996 | /* RTP/UDP */ |
90abbdba | 997 | if (lower_transport == RTSP_LOWER_TRANSPORT_UDP) { |
85fb7b34 | 998 | char buf[256]; |
85fb7b34 | 999 | |
f830c9a4 RB |
1000 | if (rt->server_type == RTSP_SERVER_WMS && i > 1) { |
1001 | port = reply->transports[0].client_port_min; | |
1002 | goto have_port; | |
1003 | } | |
1004 | ||
85fb7b34 | 1005 | /* first try in specified port range */ |
d1ccf0e0 RD |
1006 | if (RTSP_RTP_PORT_MIN != 0) { |
1007 | while(j <= RTSP_RTP_PORT_MAX) { | |
b316aa1a | 1008 | snprintf(buf, sizeof(buf), "rtp://%s?localport=%d", host, j); |
ecdcbbf6 | 1009 | j += 2; /* we will use two port by rtp stream (rtp and rtcp) */ |
dbf30963 | 1010 | if (url_open(&rtsp_st->rtp_handle, buf, URL_RDWR) == 0) { |
85fb7b34 | 1011 | goto rtp_opened; |
d1ccf0e0 | 1012 | } |
85fb7b34 | 1013 | } |
1617ad97 | 1014 | } |
85fb7b34 | 1015 | |
d1ccf0e0 RD |
1016 | /* then try on any port |
1017 | ** if (url_open(&rtsp_st->rtp_handle, "rtp://", URL_RDONLY) < 0) { | |
1018 | ** err = AVERROR_INVALIDDATA; | |
1019 | ** goto fail; | |
1020 | ** } | |
1021 | */ | |
85fb7b34 FB |
1022 | |
1023 | rtp_opened: | |
8b1ab7bf | 1024 | port = rtp_get_local_port(rtsp_st->rtp_handle); |
f830c9a4 | 1025 | have_port: |
0ad306bc | 1026 | snprintf(transport, sizeof(transport) - 1, |
eee2cbff RB |
1027 | "%s/UDP;", trans_pref); |
1028 | if (rt->server_type != RTSP_SERVER_REAL) | |
1029 | av_strlcat(transport, "unicast;", sizeof(transport)); | |
1030 | av_strlcatf(transport, sizeof(transport), | |
1031 | "client_port=%d", port); | |
f830c9a4 RB |
1032 | if (rt->transport == RTSP_TRANSPORT_RTP && |
1033 | !(rt->server_type == RTSP_SERVER_WMS && i > 0)) | |
e9dea59f | 1034 | av_strlcatf(transport, sizeof(transport), "-%d", port + 1); |
1617ad97 FB |
1035 | } |
1036 | ||
1037 | /* RTP/TCP */ | |
90abbdba | 1038 | else if (lower_transport == RTSP_LOWER_TRANSPORT_TCP) { |
090438cc RB |
1039 | /** For WMS streams, the application streams are only used for |
1040 | * UDP. When trying to set it up for TCP streams, the server | |
1041 | * will return an error. Therefore, we skip those streams. */ | |
1042 | if (rt->server_type == RTSP_SERVER_WMS && | |
1043 | s->streams[rtsp_st->stream_index]->codec->codec_type == CODEC_TYPE_DATA) | |
1044 | continue; | |
0ad306bc | 1045 | snprintf(transport, sizeof(transport) - 1, |
d1c6e47c RB |
1046 | "%s/TCP;", trans_pref); |
1047 | if (rt->server_type == RTSP_SERVER_WMS) | |
1048 | av_strlcat(transport, "unicast;", sizeof(transport)); | |
1049 | av_strlcatf(transport, sizeof(transport), | |
1050 | "interleaved=%d-%d", | |
1051 | interleave, interleave + 1); | |
1052 | interleave += 2; | |
1617ad97 FB |
1053 | } |
1054 | ||
90abbdba | 1055 | else if (lower_transport == RTSP_LOWER_TRANSPORT_UDP_MULTICAST) { |
0ad306bc | 1056 | snprintf(transport, sizeof(transport) - 1, |
e9dea59f | 1057 | "%s/UDP;multicast", trans_pref); |
1617ad97 | 1058 | } |
d1c6e47c RB |
1059 | if (rt->server_type == RTSP_SERVER_REAL || |
1060 | rt->server_type == RTSP_SERVER_WMS) | |
e9dea59f | 1061 | av_strlcat(transport, ";mode=play", sizeof(transport)); |
115329f1 | 1062 | snprintf(cmd, sizeof(cmd), |
b6892136 FB |
1063 | "SETUP %s RTSP/1.0\r\n" |
1064 | "Transport: %s\r\n", | |
1617ad97 | 1065 | rtsp_st->control_url, transport); |
2e889ae4 | 1066 | if (i == 0 && rt->server_type == RTSP_SERVER_REAL) { |
e9dea59f RB |
1067 | char real_res[41], real_csum[9]; |
1068 | ff_rdt_calc_response_and_checksum(real_res, real_csum, | |
1069 | real_challenge); | |
1070 | av_strlcatf(cmd, sizeof(cmd), | |
1071 | "If-Match: %s\r\n" | |
1072 | "RealChallenge2: %s, sd=%s\r\n", | |
1073 | rt->session_id, real_res, real_csum); | |
1074 | } | |
1617ad97 | 1075 | rtsp_send_cmd(s, cmd, reply, NULL); |
8a8754d8 RB |
1076 | if (reply->status_code == 461 /* Unsupported protocol */ && i == 0) { |
1077 | err = 1; | |
1078 | goto fail; | |
7e6ca34f RB |
1079 | } else if (reply->status_code != RTSP_STATUS_OK || |
1080 | reply->nb_transports != 1) { | |
1617ad97 FB |
1081 | err = AVERROR_INVALIDDATA; |
1082 | goto fail; | |
1083 | } | |
1084 | ||
1085 | /* XXX: same protocol for all streams is required */ | |
1086 | if (i > 0) { | |
119b4668 RB |
1087 | if (reply->transports[0].lower_transport != rt->lower_transport || |
1088 | reply->transports[0].transport != rt->transport) { | |
1617ad97 FB |
1089 | err = AVERROR_INVALIDDATA; |
1090 | goto fail; | |
1091 | } | |
1092 | } else { | |
90abbdba | 1093 | rt->lower_transport = reply->transports[0].lower_transport; |
119b4668 | 1094 | rt->transport = reply->transports[0].transport; |
1617ad97 FB |
1095 | } |
1096 | ||
1097 | /* close RTP connection if not choosen */ | |
90abbdba RB |
1098 | if (reply->transports[0].lower_transport != RTSP_LOWER_TRANSPORT_UDP && |
1099 | (lower_transport == RTSP_LOWER_TRANSPORT_UDP)) { | |
8b1ab7bf FB |
1100 | url_close(rtsp_st->rtp_handle); |
1101 | rtsp_st->rtp_handle = NULL; | |
1617ad97 FB |
1102 | } |
1103 | ||
90abbdba RB |
1104 | switch(reply->transports[0].lower_transport) { |
1105 | case RTSP_LOWER_TRANSPORT_TCP: | |
1617ad97 FB |
1106 | rtsp_st->interleaved_min = reply->transports[0].interleaved_min; |
1107 | rtsp_st->interleaved_max = reply->transports[0].interleaved_max; | |
1108 | break; | |
115329f1 | 1109 | |
90abbdba | 1110 | case RTSP_LOWER_TRANSPORT_UDP: |
1617ad97 FB |
1111 | { |
1112 | char url[1024]; | |
115329f1 | 1113 | |
1617ad97 | 1114 | /* XXX: also use address if specified */ |
115329f1 | 1115 | snprintf(url, sizeof(url), "rtp://%s:%d", |
1617ad97 | 1116 | host, reply->transports[0].server_port_min); |
f830c9a4 RB |
1117 | if (!(rt->server_type == RTSP_SERVER_WMS && i > 1) && |
1118 | rtp_set_remote_url(rtsp_st->rtp_handle, url) < 0) { | |
1617ad97 FB |
1119 | err = AVERROR_INVALIDDATA; |
1120 | goto fail; | |
1121 | } | |
1122 | } | |
1123 | break; | |
90abbdba | 1124 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: |
1617ad97 FB |
1125 | { |
1126 | char url[1024]; | |
d02678ec | 1127 | struct in_addr in; |
1617ad97 | 1128 | |
d02678ec | 1129 | in.s_addr = htonl(reply->transports[0].destination); |
35b74c3d | 1130 | snprintf(url, sizeof(url), "rtp://%s:%d?ttl=%d", |
d02678ec LB |
1131 | inet_ntoa(in), |
1132 | reply->transports[0].port_min, | |
1133 | reply->transports[0].ttl); | |
dbf30963 | 1134 | if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) { |
1617ad97 FB |
1135 | err = AVERROR_INVALIDDATA; |
1136 | goto fail; | |
1137 | } | |
1138 | } | |
1139 | break; | |
1140 | } | |
d1ccf0e0 | 1141 | |
ee0cb67f | 1142 | if ((err = rtsp_open_transport_ctx(s, rtsp_st))) |
8b1ab7bf | 1143 | goto fail; |
1617ad97 FB |
1144 | } |
1145 | ||
30e79845 RB |
1146 | if (reply->timeout > 0) |
1147 | rt->timeout = reply->timeout; | |
1148 | ||
2e889ae4 | 1149 | if (rt->server_type == RTSP_SERVER_REAL) |
1256d16b RB |
1150 | rt->need_subscription = 1; |
1151 | ||
53620bba RB |
1152 | return 0; |
1153 | ||
1154 | fail: | |
8a8754d8 RB |
1155 | for (i=0; i<rt->nb_rtsp_streams; i++) { |
1156 | if (rt->rtsp_streams[i]->rtp_handle) { | |
1157 | url_close(rt->rtsp_streams[i]->rtp_handle); | |
1158 | rt->rtsp_streams[i]->rtp_handle = NULL; | |
1159 | } | |
1160 | } | |
53620bba RB |
1161 | return err; |
1162 | } | |
1163 | ||
1164 | static int rtsp_read_header(AVFormatContext *s, | |
1165 | AVFormatParameters *ap) | |
1166 | { | |
1167 | RTSPState *rt = s->priv_data; | |
f9337897 | 1168 | char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128], *option_list, *option; |
53620bba RB |
1169 | URLContext *rtsp_hd; |
1170 | int port, ret, err; | |
a9e534d5 | 1171 | RTSPMessageHeader reply1, *reply = &reply1; |
53620bba | 1172 | unsigned char *content = NULL; |
90abbdba | 1173 | int lower_transport_mask = 0; |
1cf151e9 | 1174 | char real_challenge[64]; |
53620bba RB |
1175 | |
1176 | /* extract hostname and port */ | |
f9337897 | 1177 | url_split(NULL, 0, auth, sizeof(auth), |
53620bba | 1178 | host, sizeof(host), &port, path, sizeof(path), s->filename); |
f9337897 RB |
1179 | if (*auth) { |
1180 | int auth_len = strlen(auth), b64_len = ((auth_len + 2) / 3) * 4 + 1; | |
1181 | ||
1182 | if (!(rt->auth_b64 = av_malloc(b64_len))) | |
1183 | return AVERROR(ENOMEM); | |
1184 | if (!av_base64_encode(rt->auth_b64, b64_len, auth, auth_len)) { | |
1185 | err = AVERROR(EINVAL); | |
1186 | goto fail; | |
1187 | } | |
1188 | } | |
53620bba RB |
1189 | if (port < 0) |
1190 | port = RTSP_DEFAULT_PORT; | |
1191 | ||
1192 | /* search for options */ | |
1193 | option_list = strchr(path, '?'); | |
1194 | if (option_list) { | |
1195 | /* remove the options from the path */ | |
1196 | *option_list++ = 0; | |
1197 | while(option_list) { | |
1198 | /* move the option pointer */ | |
1199 | option = option_list; | |
1200 | option_list = strchr(option_list, '&'); | |
1201 | if (option_list) | |
1202 | *(option_list++) = 0; | |
1203 | /* handle the options */ | |
1204 | if (strcmp(option, "udp") == 0) | |
90abbdba | 1205 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP); |
53620bba | 1206 | else if (strcmp(option, "multicast") == 0) |
90abbdba | 1207 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_UDP_MULTICAST); |
53620bba | 1208 | else if (strcmp(option, "tcp") == 0) |
90abbdba | 1209 | lower_transport_mask = (1<< RTSP_LOWER_TRANSPORT_TCP); |
53620bba RB |
1210 | } |
1211 | } | |
1212 | ||
90abbdba | 1213 | if (!lower_transport_mask) |
2a1d51c5 | 1214 | lower_transport_mask = (1 << RTSP_LOWER_TRANSPORT_NB) - 1; |
53620bba RB |
1215 | |
1216 | /* open the tcp connexion */ | |
1217 | snprintf(tcpname, sizeof(tcpname), "tcp://%s:%d", host, port); | |
f9337897 RB |
1218 | if (url_open(&rtsp_hd, tcpname, URL_RDWR) < 0) { |
1219 | err = AVERROR(EIO); | |
1220 | goto fail; | |
1221 | } | |
53620bba RB |
1222 | rt->rtsp_hd = rtsp_hd; |
1223 | rt->seq = 0; | |
1224 | ||
1cf151e9 RB |
1225 | /* request options supported by the server; this also detects server type */ |
1226 | for (rt->server_type = RTSP_SERVER_RTP;;) { | |
1227 | snprintf(cmd, sizeof(cmd), | |
1228 | "OPTIONS %s RTSP/1.0\r\n", s->filename); | |
2e889ae4 | 1229 | if (rt->server_type == RTSP_SERVER_REAL) |
1cf151e9 RB |
1230 | av_strlcat(cmd, |
1231 | /** | |
1232 | * The following entries are required for proper | |
1233 | * streaming from a Realmedia server. They are | |
1234 | * interdependent in some way although we currently | |
1235 | * don't quite understand how. Values were copied | |
1236 | * from mplayer SVN r23589. | |
1237 | * @param CompanyID is a 16-byte ID in base64 | |
1238 | * @param ClientChallenge is a 16-byte ID in hex | |
1239 | */ | |
1240 | "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n" | |
1241 | "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n" | |
1242 | "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n" | |
1243 | "GUID: 00000000-0000-0000-0000-000000000000\r\n", | |
1244 | sizeof(cmd)); | |
1245 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1246 | if (reply->status_code != RTSP_STATUS_OK) { | |
1247 | err = AVERROR_INVALIDDATA; | |
1248 | goto fail; | |
1249 | } | |
1250 | ||
1251 | /* detect server type if not standard-compliant RTP */ | |
2e889ae4 RB |
1252 | if (rt->server_type != RTSP_SERVER_REAL && reply->real_challenge[0]) { |
1253 | rt->server_type = RTSP_SERVER_REAL; | |
1cf151e9 | 1254 | continue; |
7a86bafa RB |
1255 | } else if (!strncasecmp(reply->server, "WMServer/", 9)) { |
1256 | rt->server_type = RTSP_SERVER_WMS; | |
2e889ae4 | 1257 | } else if (rt->server_type == RTSP_SERVER_REAL) { |
1cf151e9 RB |
1258 | strcpy(real_challenge, reply->real_challenge); |
1259 | } | |
1260 | break; | |
1261 | } | |
1262 | ||
53620bba RB |
1263 | /* describe the stream */ |
1264 | snprintf(cmd, sizeof(cmd), | |
1265 | "DESCRIBE %s RTSP/1.0\r\n" | |
1266 | "Accept: application/sdp\r\n", | |
1267 | s->filename); | |
2e889ae4 | 1268 | if (rt->server_type == RTSP_SERVER_REAL) { |
897ade1b RB |
1269 | /** |
1270 | * The Require: attribute is needed for proper streaming from | |
1271 | * Realmedia servers. | |
1272 | */ | |
1273 | av_strlcat(cmd, | |
1274 | "Require: com.real.retain-entity-for-setup\r\n", | |
1275 | sizeof(cmd)); | |
1276 | } | |
53620bba RB |
1277 | rtsp_send_cmd(s, cmd, reply, &content); |
1278 | if (!content) { | |
1279 | err = AVERROR_INVALIDDATA; | |
1280 | goto fail; | |
1281 | } | |
1282 | if (reply->status_code != RTSP_STATUS_OK) { | |
1283 | err = AVERROR_INVALIDDATA; | |
1284 | goto fail; | |
1285 | } | |
1286 | ||
1287 | /* now we got the SDP description, we parse it */ | |
1288 | ret = sdp_parse(s, (const char *)content); | |
1289 | av_freep(&content); | |
1290 | if (ret < 0) { | |
1291 | err = AVERROR_INVALIDDATA; | |
1292 | goto fail; | |
1293 | } | |
1294 | ||
8a8754d8 | 1295 | do { |
90abbdba | 1296 | int lower_transport = ff_log2_tab[lower_transport_mask & ~(lower_transport_mask - 1)]; |
8a8754d8 | 1297 | |
90abbdba | 1298 | err = make_setup_request(s, host, port, lower_transport, |
2e889ae4 | 1299 | rt->server_type == RTSP_SERVER_REAL ? |
e9dea59f | 1300 | real_challenge : NULL); |
8a8754d8 | 1301 | if (err < 0) |
7e6ca34f | 1302 | goto fail; |
90abbdba RB |
1303 | lower_transport_mask &= ~(1 << lower_transport); |
1304 | if (lower_transport_mask == 0 && err == 1) { | |
5ee0e139 | 1305 | err = AVERROR(FF_NETERROR(EPROTONOSUPPORT)); |
8a8754d8 RB |
1306 | goto fail; |
1307 | } | |
1308 | } while (err); | |
53620bba | 1309 | |
ff762d6e FB |
1310 | rt->state = RTSP_STATE_IDLE; |
1311 | rt->seek_timestamp = 0; /* default is to start stream at position | |
1312 | zero */ | |
c04c3282 | 1313 | if (ap->initial_pause) { |
ff762d6e FB |
1314 | /* do not start immediately */ |
1315 | } else { | |
1316 | if (rtsp_read_play(s) < 0) { | |
1317 | err = AVERROR_INVALIDDATA; | |
1617ad97 FB |
1318 | goto fail; |
1319 | } | |
1320 | } | |
1617ad97 FB |
1321 | return 0; |
1322 | fail: | |
8b1ab7bf | 1323 | rtsp_close_streams(rt); |
1617ad97 FB |
1324 | av_freep(&content); |
1325 | url_close(rt->rtsp_hd); | |
f9337897 | 1326 | av_freep(&rt->auth_b64); |
1617ad97 FB |
1327 | return err; |
1328 | } | |
1329 | ||
8b1ab7bf FB |
1330 | static int tcp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st, |
1331 | uint8_t *buf, int buf_size) | |
1617ad97 FB |
1332 | { |
1333 | RTSPState *rt = s->priv_data; | |
b6892136 | 1334 | int id, len, i, ret; |
1617ad97 | 1335 | RTSPStream *rtsp_st; |
1617ad97 | 1336 | |
b6892136 | 1337 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 1338 | dprintf(s, "tcp_read_packet:\n"); |
b6892136 | 1339 | #endif |
1617ad97 FB |
1340 | redo: |
1341 | for(;;) { | |
7e726132 RB |
1342 | RTSPMessageHeader reply; |
1343 | ||
1344 | ret = rtsp_read_reply(s, &reply, NULL, 1); | |
1345 | if (ret == -1) | |
8b1ab7bf | 1346 | return -1; |
7e726132 | 1347 | if (ret == 1) /* received '$' */ |
1617ad97 | 1348 | break; |
7e726132 | 1349 | /* XXX: parse message */ |
fccb1770 RB |
1350 | if (rt->state != RTSP_STATE_PLAYING) |
1351 | return 0; | |
1617ad97 | 1352 | } |
0e848977 | 1353 | ret = url_read_complete(rt->rtsp_hd, buf, 3); |
b6892136 | 1354 | if (ret != 3) |
8b1ab7bf | 1355 | return -1; |
b6892136 | 1356 | id = buf[0]; |
80fb8234 | 1357 | len = AV_RB16(buf + 1); |
b6892136 | 1358 | #ifdef DEBUG_RTP_TCP |
67c9cd69 | 1359 | dprintf(s, "id=%d len=%d\n", id, len); |
b6892136 | 1360 | #endif |
8b1ab7bf | 1361 | if (len > buf_size || len < 12) |
1617ad97 FB |
1362 | goto redo; |
1363 | /* get the data */ | |
0e848977 | 1364 | ret = url_read_complete(rt->rtsp_hd, buf, len); |
b6892136 | 1365 | if (ret != len) |
8b1ab7bf | 1366 | return -1; |
985b05d3 | 1367 | if (rt->transport == RTSP_TRANSPORT_RDT && |
114732f4 | 1368 | ff_rdt_parse_header(buf, len, &id, NULL, NULL, NULL, NULL) < 0) |
985b05d3 | 1369 | return -1; |
115329f1 | 1370 | |
1617ad97 | 1371 | /* find the matching stream */ |
8b1ab7bf FB |
1372 | for(i = 0; i < rt->nb_rtsp_streams; i++) { |
1373 | rtsp_st = rt->rtsp_streams[i]; | |
115329f1 DB |
1374 | if (id >= rtsp_st->interleaved_min && |
1375 | id <= rtsp_st->interleaved_max) | |
1617ad97 FB |
1376 | goto found; |
1377 | } | |
1378 | goto redo; | |
1379 | found: | |
8b1ab7bf FB |
1380 | *prtsp_st = rtsp_st; |
1381 | return len; | |
1617ad97 FB |
1382 | } |
1383 | ||
115329f1 | 1384 | static int udp_read_packet(AVFormatContext *s, RTSPStream **prtsp_st, |
8b1ab7bf | 1385 | uint8_t *buf, int buf_size) |
1617ad97 | 1386 | { |
8b1ab7bf | 1387 | RTSPState *rt = s->priv_data; |
1617ad97 FB |
1388 | RTSPStream *rtsp_st; |
1389 | fd_set rfds; | |
7e726132 | 1390 | int fd, fd_max, n, i, ret, tcp_fd; |
1617ad97 FB |
1391 | struct timeval tv; |
1392 | ||
1393 | for(;;) { | |
b7b8fc34 | 1394 | if (url_interrupt_cb()) |
a960a1e0 | 1395 | return AVERROR(EINTR); |
1617ad97 | 1396 | FD_ZERO(&rfds); |
46ff7a5f LA |
1397 | if (rt->rtsp_hd) { |
1398 | tcp_fd = fd_max = url_get_file_handle(rt->rtsp_hd); | |
1399 | FD_SET(tcp_fd, &rfds); | |
1400 | } else { | |
1401 | fd_max = 0; | |
1402 | tcp_fd = -1; | |
1403 | } | |
8b1ab7bf FB |
1404 | for(i = 0; i < rt->nb_rtsp_streams; i++) { |
1405 | rtsp_st = rt->rtsp_streams[i]; | |
f830c9a4 | 1406 | if (rtsp_st->rtp_handle) { |
2fea9650 RB |
1407 | /* currently, we cannot probe RTCP handle because of |
1408 | * blocking restrictions */ | |
bc8763cd RB |
1409 | fd = url_get_file_handle(rtsp_st->rtp_handle); |
1410 | if (fd > fd_max) | |
1411 | fd_max = fd; | |
1412 | FD_SET(fd, &rfds); | |
f830c9a4 | 1413 | } |
1617ad97 | 1414 | } |
1617ad97 | 1415 | tv.tv_sec = 0; |
b7b8fc34 | 1416 | tv.tv_usec = 100 * 1000; |
1617ad97 FB |
1417 | n = select(fd_max + 1, &rfds, NULL, NULL, &tv); |
1418 | if (n > 0) { | |
8b1ab7bf FB |
1419 | for(i = 0; i < rt->nb_rtsp_streams; i++) { |
1420 | rtsp_st = rt->rtsp_streams[i]; | |
f830c9a4 | 1421 | if (rtsp_st->rtp_handle) { |
bc8763cd RB |
1422 | fd = url_get_file_handle(rtsp_st->rtp_handle); |
1423 | if (FD_ISSET(fd, &rfds)) { | |
2fea9650 RB |
1424 | ret = url_read(rtsp_st->rtp_handle, buf, buf_size); |
1425 | if (ret > 0) { | |
1426 | *prtsp_st = rtsp_st; | |
1427 | return ret; | |
1428 | } | |
1617ad97 FB |
1429 | } |
1430 | } | |
1431 | } | |
7e726132 RB |
1432 | if (FD_ISSET(tcp_fd, &rfds)) { |
1433 | RTSPMessageHeader reply; | |
1434 | ||
1435 | rtsp_read_reply(s, &reply, NULL, 0); | |
1436 | /* XXX: parse message */ | |
fccb1770 RB |
1437 | if (rt->state != RTSP_STATE_PLAYING) |
1438 | return 0; | |
7e726132 | 1439 | } |
1617ad97 FB |
1440 | } |
1441 | } | |
1442 | } | |
1443 | ||
1444 | static int rtsp_read_packet(AVFormatContext *s, | |
1445 | AVPacket *pkt) | |
1446 | { | |
1447 | RTSPState *rt = s->priv_data; | |
8b1ab7bf FB |
1448 | RTSPStream *rtsp_st; |
1449 | int ret, len; | |
e49906c3 | 1450 | uint8_t buf[10 * RTP_MAX_PACKET_LENGTH]; |
30e79845 RB |
1451 | RTSPMessageHeader reply1, *reply = &reply1; |
1452 | char cmd[1024]; | |
8b1ab7bf | 1453 | |
572c6a38 | 1454 | if (rt->server_type == RTSP_SERVER_REAL) { |
1256d16b | 1455 | int i; |
572c6a38 | 1456 | enum AVDiscard cache[MAX_STREAMS]; |
1256d16b | 1457 | |
572c6a38 RB |
1458 | for (i = 0; i < s->nb_streams; i++) |
1459 | cache[i] = s->streams[i]->discard; | |
1460 | ||
1461 | if (!rt->need_subscription) { | |
1462 | if (memcmp (cache, rt->real_setup_cache, | |
1463 | sizeof(enum AVDiscard) * s->nb_streams)) { | |
1464 | av_strlcatf(cmd, sizeof(cmd), | |
1465 | "SET_PARAMETER %s RTSP/1.0\r\n" | |
1466 | "Unsubscribe: %s\r\n", | |
1467 | s->filename, rt->last_subscription); | |
1468 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1469 | if (reply->status_code != RTSP_STATUS_OK) | |
1470 | return AVERROR_INVALIDDATA; | |
1471 | rt->need_subscription = 1; | |
1472 | } | |
1256d16b | 1473 | } |
1256d16b | 1474 | |
572c6a38 RB |
1475 | if (rt->need_subscription) { |
1476 | int r, rule_nr, first = 1; | |
1477 | ||
1478 | memcpy(rt->real_setup_cache, cache, | |
1479 | sizeof(enum AVDiscard) * s->nb_streams); | |
1480 | rt->last_subscription[0] = 0; | |
1481 | ||
1482 | snprintf(cmd, sizeof(cmd), | |
1483 | "SET_PARAMETER %s RTSP/1.0\r\n" | |
1484 | "Subscribe: ", | |
1485 | s->filename); | |
1486 | for (i = 0; i < rt->nb_rtsp_streams; i++) { | |
1487 | rule_nr = 0; | |
1488 | for (r = 0; r < s->nb_streams; r++) { | |
1489 | if (s->streams[r]->priv_data == rt->rtsp_streams[i]) { | |
1490 | if (s->streams[r]->discard != AVDISCARD_ALL) { | |
1491 | if (!first) | |
1492 | av_strlcat(rt->last_subscription, ",", | |
1493 | sizeof(rt->last_subscription)); | |
1494 | ff_rdt_subscribe_rule( | |
1495 | rt->last_subscription, | |
1496 | sizeof(rt->last_subscription), i, rule_nr); | |
1497 | first = 0; | |
1498 | } | |
1499 | rule_nr++; | |
1500 | } | |
1501 | } | |
1502 | } | |
1503 | av_strlcatf(cmd, sizeof(cmd), "%s\r\n", rt->last_subscription); | |
1504 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1505 | if (reply->status_code != RTSP_STATUS_OK) | |
1506 | return AVERROR_INVALIDDATA; | |
1507 | rt->need_subscription = 0; | |
1508 | ||
1509 | if (rt->state == RTSP_STATE_PLAYING) | |
1510 | rtsp_read_play (s); | |
1511 | } | |
1256d16b RB |
1512 | } |
1513 | ||
8b1ab7bf | 1514 | /* get next frames from the same RTP packet */ |
0a861b6f | 1515 | if (rt->cur_transport_priv) { |
119b4668 | 1516 | if (rt->transport == RTSP_TRANSPORT_RDT) |
0a861b6f | 1517 | ret = ff_rdt_parse_packet(rt->cur_transport_priv, pkt, NULL, 0); |
4fce284c | 1518 | else |
0a861b6f | 1519 | ret = rtp_parse_packet(rt->cur_transport_priv, pkt, NULL, 0); |
8b1ab7bf | 1520 | if (ret == 0) { |
0a861b6f | 1521 | rt->cur_transport_priv = NULL; |
8b1ab7bf FB |
1522 | return 0; |
1523 | } else if (ret == 1) { | |
1524 | return 0; | |
1525 | } else { | |
0a861b6f | 1526 | rt->cur_transport_priv = NULL; |
8b1ab7bf FB |
1527 | } |
1528 | } | |
1617ad97 | 1529 | |
8b1ab7bf FB |
1530 | /* read next RTP packet */ |
1531 | redo: | |
90abbdba | 1532 | switch(rt->lower_transport) { |
1617ad97 | 1533 | default: |
90abbdba | 1534 | case RTSP_LOWER_TRANSPORT_TCP: |
8b1ab7bf | 1535 | len = tcp_read_packet(s, &rtsp_st, buf, sizeof(buf)); |
1617ad97 | 1536 | break; |
90abbdba RB |
1537 | case RTSP_LOWER_TRANSPORT_UDP: |
1538 | case RTSP_LOWER_TRANSPORT_UDP_MULTICAST: | |
8b1ab7bf | 1539 | len = udp_read_packet(s, &rtsp_st, buf, sizeof(buf)); |
0a861b6f RB |
1540 | if (len >=0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP) |
1541 | rtp_check_and_send_back_rr(rtsp_st->transport_priv, len); | |
1617ad97 FB |
1542 | break; |
1543 | } | |
8b1ab7bf | 1544 | if (len < 0) |
489b0d4d | 1545 | return len; |
fccb1770 RB |
1546 | if (len == 0) |
1547 | return AVERROR_EOF; | |
119b4668 | 1548 | if (rt->transport == RTSP_TRANSPORT_RDT) |
0a861b6f | 1549 | ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, buf, len); |
4fce284c | 1550 | else |
0a861b6f | 1551 | ret = rtp_parse_packet(rtsp_st->transport_priv, pkt, buf, len); |
8b1ab7bf FB |
1552 | if (ret < 0) |
1553 | goto redo; | |
1554 | if (ret == 1) { | |
1555 | /* more packets may follow, so we save the RTP context */ | |
0a861b6f | 1556 | rt->cur_transport_priv = rtsp_st->transport_priv; |
8b1ab7bf | 1557 | } |
30e79845 RB |
1558 | |
1559 | /* send dummy request to keep TCP connection alive */ | |
1560 | if ((rt->server_type == RTSP_SERVER_WMS || | |
1561 | rt->server_type == RTSP_SERVER_REAL) && | |
1562 | (av_gettime() - rt->last_cmd_time) / 1000000 >= rt->timeout / 2) { | |
1563 | if (rt->server_type == RTSP_SERVER_WMS) { | |
1564 | snprintf(cmd, sizeof(cmd) - 1, | |
1565 | "GET_PARAMETER %s RTSP/1.0\r\n", | |
1566 | s->filename); | |
1567 | rtsp_send_cmd_async(s, cmd, reply, NULL); | |
1568 | } else { | |
1569 | rtsp_send_cmd_async(s, "OPTIONS * RTSP/1.0\r\n", | |
1570 | reply, NULL); | |
1571 | } | |
1572 | } | |
1573 | ||
8b1ab7bf | 1574 | return 0; |
1617ad97 FB |
1575 | } |
1576 | ||
ff762d6e | 1577 | static int rtsp_read_play(AVFormatContext *s) |
b7b8fc34 | 1578 | { |
ff762d6e | 1579 | RTSPState *rt = s->priv_data; |
a9e534d5 | 1580 | RTSPMessageHeader reply1, *reply = &reply1; |
b7b8fc34 FB |
1581 | char cmd[1024]; |
1582 | ||
bc874dae | 1583 | av_log(s, AV_LOG_DEBUG, "hello state=%d\n", rt->state); |
ff762d6e | 1584 | |
2e889ae4 | 1585 | if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) { |
99b2ac07 RB |
1586 | if (rt->state == RTSP_STATE_PAUSED) { |
1587 | snprintf(cmd, sizeof(cmd), | |
1588 | "PLAY %s RTSP/1.0\r\n", | |
1589 | s->filename); | |
1590 | } else { | |
1591 | snprintf(cmd, sizeof(cmd), | |
1592 | "PLAY %s RTSP/1.0\r\n" | |
1593 | "Range: npt=%0.3f-\r\n", | |
1594 | s->filename, | |
1595 | (double)rt->seek_timestamp / AV_TIME_BASE); | |
1596 | } | |
1597 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1598 | if (reply->status_code != RTSP_STATUS_OK) { | |
1599 | return -1; | |
1600 | } | |
1256d16b | 1601 | } |
5f86057f RB |
1602 | rt->state = RTSP_STATE_PLAYING; |
1603 | return 0; | |
b7b8fc34 FB |
1604 | } |
1605 | ||
ff762d6e FB |
1606 | /* pause the stream */ |
1607 | static int rtsp_read_pause(AVFormatContext *s) | |
b7b8fc34 | 1608 | { |
ff762d6e | 1609 | RTSPState *rt = s->priv_data; |
a9e534d5 | 1610 | RTSPMessageHeader reply1, *reply = &reply1; |
b7b8fc34 FB |
1611 | char cmd[1024]; |
1612 | ||
b7b8fc34 | 1613 | rt = s->priv_data; |
115329f1 | 1614 | |
ff762d6e FB |
1615 | if (rt->state != RTSP_STATE_PLAYING) |
1616 | return 0; | |
2e889ae4 | 1617 | else if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) { |
99b2ac07 RB |
1618 | snprintf(cmd, sizeof(cmd), |
1619 | "PAUSE %s RTSP/1.0\r\n", | |
1620 | s->filename); | |
1621 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1622 | if (reply->status_code != RTSP_STATUS_OK) { | |
1623 | return -1; | |
1624 | } | |
1256d16b | 1625 | } |
5f86057f RB |
1626 | rt->state = RTSP_STATE_PAUSED; |
1627 | return 0; | |
b7b8fc34 FB |
1628 | } |
1629 | ||
115329f1 | 1630 | static int rtsp_read_seek(AVFormatContext *s, int stream_index, |
7b3c1382 | 1631 | int64_t timestamp, int flags) |
ff762d6e FB |
1632 | { |
1633 | RTSPState *rt = s->priv_data; | |
115329f1 | 1634 | |
50755217 | 1635 | rt->seek_timestamp = av_rescale_q(timestamp, s->streams[stream_index]->time_base, AV_TIME_BASE_Q); |
ff762d6e FB |
1636 | switch(rt->state) { |
1637 | default: | |
1638 | case RTSP_STATE_IDLE: | |
1639 | break; | |
1640 | case RTSP_STATE_PLAYING: | |
ec606b36 LB |
1641 | if (rtsp_read_pause(s) != 0) |
1642 | return -1; | |
1643 | rt->state = RTSP_STATE_SEEKING; | |
ff762d6e FB |
1644 | if (rtsp_read_play(s) != 0) |
1645 | return -1; | |
1646 | break; | |
1647 | case RTSP_STATE_PAUSED: | |
1648 | rt->state = RTSP_STATE_IDLE; | |
1649 | break; | |
1650 | } | |
1651 | return 0; | |
1652 | } | |
1653 | ||
1617ad97 FB |
1654 | static int rtsp_read_close(AVFormatContext *s) |
1655 | { | |
1656 | RTSPState *rt = s->priv_data; | |
a9e534d5 | 1657 | RTSPMessageHeader reply1, *reply = &reply1; |
1617ad97 FB |
1658 | char cmd[1024]; |
1659 | ||
b6892136 | 1660 | #if 0 |
1617ad97 | 1661 | /* NOTE: it is valid to flush the buffer here */ |
90abbdba | 1662 | if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) { |
1617ad97 FB |
1663 | url_fclose(&rt->rtsp_gb); |
1664 | } | |
b6892136 | 1665 | #endif |
115329f1 | 1666 | snprintf(cmd, sizeof(cmd), |
b6892136 | 1667 | "TEARDOWN %s RTSP/1.0\r\n", |
1617ad97 FB |
1668 | s->filename); |
1669 | rtsp_send_cmd(s, cmd, reply, NULL); | |
1670 | ||
8b1ab7bf | 1671 | rtsp_close_streams(rt); |
1617ad97 FB |
1672 | url_close(rt->rtsp_hd); |
1673 | return 0; | |
1674 | } | |
1675 | ||
b250f9c6 | 1676 | #if CONFIG_RTSP_DEMUXER |
d2a067d1 | 1677 | AVInputFormat rtsp_demuxer = { |
1617ad97 | 1678 | "rtsp", |
bde15e74 | 1679 | NULL_IF_CONFIG_SMALL("RTSP input format"), |
1617ad97 FB |
1680 | sizeof(RTSPState), |
1681 | rtsp_probe, | |
1682 | rtsp_read_header, | |
1683 | rtsp_read_packet, | |
1684 | rtsp_read_close, | |
ff762d6e | 1685 | rtsp_read_seek, |
bb76a117 | 1686 | .flags = AVFMT_NOFILE, |
ff762d6e FB |
1687 | .read_play = rtsp_read_play, |
1688 | .read_pause = rtsp_read_pause, | |
1617ad97 | 1689 | }; |
96862926 | 1690 | #endif |
1617ad97 | 1691 | |
cb1fdc61 | 1692 | static int sdp_probe(AVProbeData *p1) |
93ced3e8 | 1693 | { |
0e1ceacd | 1694 | const char *p = p1->buf, *p_end = p1->buf + p1->buf_size; |
cb1fdc61 FB |
1695 | |
1696 | /* we look for a line beginning "c=IN IP4" */ | |
0e1ceacd | 1697 | while (p < p_end && *p != '\0') { |
f7d78f36 | 1698 | if (p + sizeof("c=IN IP4") - 1 < p_end && av_strstart(p, "c=IN IP4", NULL)) |
cb1fdc61 | 1699 | return AVPROBE_SCORE_MAX / 2; |
0e1ceacd MN |
1700 | |
1701 | while(p < p_end - 1 && *p != '\n') p++; | |
1702 | if (++p >= p_end) | |
cb1fdc61 | 1703 | break; |
cb1fdc61 FB |
1704 | if (*p == '\r') |
1705 | p++; | |
1706 | } | |
93ced3e8 FB |
1707 | return 0; |
1708 | } | |
1709 | ||
1710 | #define SDP_MAX_SIZE 8192 | |
1711 | ||
1712 | static int sdp_read_header(AVFormatContext *s, | |
1713 | AVFormatParameters *ap) | |
1714 | { | |
8b1ab7bf | 1715 | RTSPState *rt = s->priv_data; |
93ced3e8 FB |
1716 | RTSPStream *rtsp_st; |
1717 | int size, i, err; | |
1718 | char *content; | |
1719 | char url[1024]; | |
1720 | ||
1721 | /* read the whole sdp file */ | |
1722 | /* XXX: better loading */ | |
1723 | content = av_malloc(SDP_MAX_SIZE); | |
899681cd | 1724 | size = get_buffer(s->pb, content, SDP_MAX_SIZE - 1); |
93ced3e8 FB |
1725 | if (size <= 0) { |
1726 | av_free(content); | |
1727 | return AVERROR_INVALIDDATA; | |
1728 | } | |
1729 | content[size] ='\0'; | |
1730 | ||
1731 | sdp_parse(s, content); | |
1732 | av_free(content); | |
1733 | ||
1734 | /* open each RTP stream */ | |
8b1ab7bf FB |
1735 | for(i=0;i<rt->nb_rtsp_streams;i++) { |
1736 | rtsp_st = rt->rtsp_streams[i]; | |
115329f1 | 1737 | |
d2bf42be | 1738 | snprintf(url, sizeof(url), "rtp://%s:%d?localport=%d&ttl=%d", |
115329f1 | 1739 | inet_ntoa(rtsp_st->sdp_ip), |
93ced3e8 | 1740 | rtsp_st->sdp_port, |
d2bf42be | 1741 | rtsp_st->sdp_port, |
93ced3e8 | 1742 | rtsp_st->sdp_ttl); |
dbf30963 | 1743 | if (url_open(&rtsp_st->rtp_handle, url, URL_RDWR) < 0) { |
93ced3e8 FB |
1744 | err = AVERROR_INVALIDDATA; |
1745 | goto fail; | |
1746 | } | |
ee0cb67f | 1747 | if ((err = rtsp_open_transport_ctx(s, rtsp_st))) |
8b1ab7bf | 1748 | goto fail; |
93ced3e8 FB |
1749 | } |
1750 | return 0; | |
1751 | fail: | |
8b1ab7bf | 1752 | rtsp_close_streams(rt); |
93ced3e8 FB |
1753 | return err; |
1754 | } | |
1755 | ||
1756 | static int sdp_read_packet(AVFormatContext *s, | |
1757 | AVPacket *pkt) | |
1758 | { | |
8b1ab7bf | 1759 | return rtsp_read_packet(s, pkt); |
93ced3e8 FB |
1760 | } |
1761 | ||
1762 | static int sdp_read_close(AVFormatContext *s) | |
1763 | { | |
8b1ab7bf FB |
1764 | RTSPState *rt = s->priv_data; |
1765 | rtsp_close_streams(rt); | |
93ced3e8 FB |
1766 | return 0; |
1767 | } | |
1768 | ||
b250f9c6 | 1769 | #if CONFIG_SDP_DEMUXER |
ff70e601 | 1770 | AVInputFormat sdp_demuxer = { |
93ced3e8 | 1771 | "sdp", |
bde15e74 | 1772 | NULL_IF_CONFIG_SMALL("SDP"), |
93ced3e8 FB |
1773 | sizeof(RTSPState), |
1774 | sdp_probe, | |
1775 | sdp_read_header, | |
1776 | sdp_read_packet, | |
1777 | sdp_read_close, | |
1778 | }; | |
ff70e601 | 1779 | #endif |