55 #define POLL_TIMEOUT_MS 100
56 #define READ_PACKET_TIMEOUT_S 10
57 #define MAX_TIMEOUTS READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS
58 #define SDP_MAX_SIZE 16384
59 #define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
60 #define DEFAULT_REORDERING_DELAY 100000
62 #define OFFSET(x) offsetof(RTSPState, x)
63 #define DEC AV_OPT_FLAG_DECODING_PARAM
64 #define ENC AV_OPT_FLAG_ENCODING_PARAM
66 #define RTSP_FLAG_OPTS(name, longname) \
67 { name, longname, OFFSET(rtsp_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC, "rtsp_flags" }, \
68 { "filter_src", "only receive packets from the negotiated peer IP", 0, AV_OPT_TYPE_CONST, {.i64 = RTSP_FLAG_FILTER_SRC}, 0, 0, DEC, "rtsp_flags" }
70 #define RTSP_MEDIATYPE_OPTS(name, longname) \
71 { name, longname, OFFSET(media_type_mask), AV_OPT_TYPE_FLAGS, { .i64 = (1 << (AVMEDIA_TYPE_DATA+1)) - 1 }, INT_MIN, INT_MAX, DEC, "allowed_media_types" }, \
72 { "video", "Video", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_VIDEO}, 0, 0, DEC, "allowed_media_types" }, \
73 { "audio", "Audio", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_AUDIO}, 0, 0, DEC, "allowed_media_types" }, \
74 { "data", "Data", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_DATA}, 0, 0, DEC, "allowed_media_types" }
76 #define RTSP_REORDERING_OPTS() \
77 { "reorder_queue_size", "set number of packets to buffer for handling of reordered packets", OFFSET(reordering_queue_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC }
80 {
"initial_pause",
"do not start playing the stream immediately",
OFFSET(initial_pause),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1,
DEC },
82 {
"rtsp_transport",
"set RTSP transport protocols",
OFFSET(lower_transport_mask),
AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX,
DEC|
ENC,
"rtsp_transport" }, \
89 {
"prefer_tcp",
"try RTP via TCP first, if available", 0,
AV_OPT_TYPE_CONST, {.i64 =
RTSP_FLAG_PREFER_TCP}, 0, 0,
DEC|
ENC,
"rtsp_flags" },
93 {
"timeout",
"set maximum timeout (in seconds) to wait for incoming connections (-1 is infinite, imply flag listen)",
OFFSET(initial_timeout),
AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX,
DEC },
94 {
"stimeout",
"set timeout (in microseconds) of socket TCP I/O operations",
OFFSET(stimeout),
AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX,
DEC },
116 const char *sep,
const char **pp)
124 while (!strchr(sep, *p) && *p !=
'\0') {
125 if ((q - buf) < buf_size - 1)
137 if (**pp ==
'/') (*pp)++;
172 struct addrinfo hints = { 0 }, *ai = NULL;
176 memcpy(sock, ai->ai_addr,
FFMIN(
sizeof(*sock), ai->ai_addrlen));
190 if (handler->
alloc) {
200 int payload_type,
const char *p)
222 init_rtp_handler(handler, rtsp_st, codec);
275 char *
value,
int value_size)
290 typedef struct SDPParseState {
295 int nb_default_include_source_addrs;
296 struct RTSPSource **default_include_source_addrs;
297 int nb_default_exclude_source_addrs;
298 struct RTSPSource **default_exclude_source_addrs;
301 char delayed_fmtp[2048];
304 static void copy_default_source_addrs(
struct RTSPSource **addrs,
int count,
309 for (i = 0; i <
count; i++) {
311 rtsp_src2 =
av_malloc(
sizeof(*rtsp_src2));
314 memcpy(rtsp_src2, rtsp_src,
sizeof(*rtsp_src));
320 int payload_type,
const char *
line)
336 int letter,
const char *buf)
339 char buf1[64], st_type[64];
349 av_dlog(s,
"sdp: %c='%s'\n", letter, buf);
352 if (s1->skip_media && letter !=
'm')
357 if (strcmp(buf1,
"IN") != 0)
360 if (strcmp(buf1,
"IP4") && strcmp(buf1,
"IP6"))
372 s1->default_ip = sdp_ip;
373 s1->default_ttl = ttl;
395 get_word(st_type,
sizeof(st_type), &p);
396 if (!strcmp(st_type,
"audio")) {
398 }
else if (!strcmp(st_type,
"video")) {
400 }
else if (!strcmp(st_type,
"application")) {
413 rtsp_st->
sdp_ip = s1->default_ip;
414 rtsp_st->
sdp_ttl = s1->default_ttl;
416 copy_default_source_addrs(s1->default_include_source_addrs,
417 s1->nb_default_include_source_addrs,
420 copy_default_source_addrs(s1->default_exclude_source_addrs,
421 s1->nb_default_exclude_source_addrs,
429 if (!strcmp(buf1,
"udp"))
431 else if (strstr(buf1,
"/AVPF") || strstr(buf1,
"/SAVPF"))
441 if (!rt->
ts && CONFIG_RTPDEC)
447 init_rtp_handler(handler, rtsp_st, NULL);
448 if (handler && handler->
init)
472 init_rtp_handler(handler, rtsp_st, st->
codec);
473 if (handler && handler->
init)
485 if (!strncmp(p,
"rtsp://", 7))
496 if (proto[0] ==
'\0') {
510 payload_type = atoi(buf1);
514 sdp_parse_rtpmap(s, st, rtsp_st, payload_type, p);
518 parse_fmtp(s, rt, payload_type, s1->delayed_fmtp);
524 payload_type = atoi(buf1);
525 if (s1->seen_rtpmap) {
529 av_strlcpy(s1->delayed_fmtp, buf,
sizeof(s1->delayed_fmtp));
540 }
else if (
av_strstart(p,
"IsRealDataType:integer;",&p)) {
543 }
else if (
av_strstart(p,
"SampleRate:integer;", &p) &&
558 if (strcmp(buf1,
"incl") && strcmp(buf1,
"excl"))
560 exclude = !strcmp(buf1,
"excl");
563 if (strcmp(buf1,
"IN") != 0)
566 if (strcmp(buf1,
"IP4") && strcmp(buf1,
"IP6") && strcmp(buf1,
"*"))
578 dynarray_add(&s1->default_exclude_source_addrs, &s1->nb_default_exclude_source_addrs, rtsp_src);
585 dynarray_add(&s1->default_include_source_addrs, &s1->nb_default_include_source_addrs, rtsp_src);
626 SDPParseState sdp_parse_state = { { 0 } }, *s1 = &sdp_parse_state;
640 while (*p !=
'\n' && *p !=
'\r' && *p !=
'\0') {
641 if ((q - buf) <
sizeof(buf) - 1)
646 sdp_parse_line(s, s1, letter, buf);
648 while (*p !=
'\n' && *p !=
'\0')
654 for (i = 0; i < s1->nb_default_include_source_addrs; i++)
655 av_free(s1->default_include_source_addrs[i]);
656 av_freep(&s1->default_include_source_addrs);
657 for (i = 0; i < s1->nb_default_exclude_source_addrs; i++)
658 av_free(s1->default_exclude_source_addrs[i]);
659 av_freep(&s1->default_exclude_source_addrs);
682 if (CONFIG_RTSP_MUXER && rtpctx->
pb && send_packets)
730 if (rt->
ts && CONFIG_RTPDEC)
741 if (reordering_queue_size < 0) {
743 reordering_queue_size = 0;
754 if (s->
oformat && CONFIG_RTSP_MUXER) {
770 else if (CONFIG_RTPDEC)
773 reordering_queue_size);
792 #if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
793 static void rtsp_parse_range(
int *min_ptr,
int *max_ptr,
const char **pp)
801 v = strtol(q, &p, 10);
805 v = strtol(p, &p, 10);
817 char transport_protocol[16];
819 char lower_transport[16];
833 get_word_sep(transport_protocol,
sizeof(transport_protocol),
837 lower_transport[0] =
'\0';
844 }
else if (!
av_strcasecmp (transport_protocol,
"x-pn-tng") ||
847 get_word_sep(lower_transport,
sizeof(lower_transport),
"/;,", &p);
852 lower_transport[0] =
'\0';
868 while (*p !=
'\0' && *p !=
',') {
870 if (!strcmp(parameter,
"port")) {
875 }
else if (!strcmp(parameter,
"client_port")) {
881 }
else if (!strcmp(parameter,
"server_port")) {
887 }
else if (!strcmp(parameter,
"interleaved")) {
893 }
else if (!strcmp(parameter,
"multicast")) {
896 }
else if (!strcmp(parameter,
"ttl")) {
900 th->
ttl = strtol(p, &end, 10);
903 }
else if (!strcmp(parameter,
"destination")) {
909 }
else if (!strcmp(parameter,
"source")) {
915 }
else if (!strcmp(parameter,
"mode")) {
919 if (!strcmp(buf,
"record") ||
920 !strcmp(buf,
"receive"))
925 while (*p !=
';' && *p !=
'\0' && *p !=
',')
937 static void handle_rtp_info(
RTSPState *rt,
const char *url,
938 uint32_t seq, uint32_t rtptime)
941 if (!rtptime || !url[0])
957 static void rtsp_parse_rtp_info(
RTSPState *rt,
const char *p)
960 char key[20], value[1024], url[1024] =
"";
961 uint32_t seq = 0, rtptime = 0;
973 if (!strcmp(key,
"url"))
975 else if (!strcmp(key,
"seq"))
976 seq = strtoul(value, NULL, 10);
977 else if (!strcmp(key,
"rtptime"))
978 rtptime = strtoul(value, NULL, 10);
980 handle_rtp_info(rt, url, seq, rtptime);
989 handle_rtp_info(rt, url, seq, rtptime);
1003 (t = strtol(p, NULL, 10)) > 0) {
1009 rtsp_parse_transport(reply, p);
1011 reply->
seq = strtol(p, NULL, 10);
1022 reply->
notice = strtol(p, NULL, 10);
1026 }
else if (
av_stristart(p,
"WWW-Authenticate:", &p) && rt) {
1029 }
else if (
av_stristart(p,
"Authentication-Info:", &p) && rt) {
1032 }
else if (
av_stristart(p,
"Content-Base:", &p) && rt) {
1034 if (method && !strcmp(method,
"DESCRIBE"))
1038 if (method && !strcmp(method,
"PLAY"))
1039 rtsp_parse_rtp_info(rt, p);
1041 if (strstr(p,
"GET_PARAMETER") &&
1042 method && !strcmp(method,
"OPTIONS"))
1044 }
else if (
av_stristart(p,
"x-Accept-Dynamic-Rate:", &p) && rt) {
1065 av_dlog(s,
"skipping RTP packet len=%d\n", len);
1070 if (len1 >
sizeof(buf))
1080 unsigned char **content_ptr,
1081 int return_on_interleaved_data,
const char *method)
1084 char buf[4096], buf1[1024], *q;
1087 int ret, content_length, line_count = 0, request = 0;
1088 unsigned char *content = NULL;
1094 memset(reply, 0,
sizeof(*reply));
1102 av_dlog(s,
"ret=%d c=%02x [%c]\n", ret, ch, ch);
1109 if (return_on_interleaved_data) {
1113 }
else if (ch !=
'\r') {
1114 if ((q - buf) <
sizeof(buf) - 1)
1120 av_dlog(s,
"line='%s'\n", buf);
1126 if (line_count == 0) {
1129 if (!strncmp(buf1,
"RTSP/", 5)) {
1150 if (content_length > 0) {
1152 content =
av_malloc(content_length + 1);
1154 content[content_length] =
'\0';
1157 *content_ptr = content;
1164 const char* ptr =
buf;
1166 if (!strcmp(reply->
reason,
"OPTIONS")) {
1167 snprintf(buf,
sizeof(buf),
"RTSP/1.0 200 OK\r\n");
1174 snprintf(buf,
sizeof(buf),
"RTSP/1.0 501 Not Implemented\r\n");
1199 if (rt->
seq != reply->
seq) {
1205 if (reply->
notice == 2101 ||
1207 reply->
notice == 2306 ) {
1209 }
else if (reply->
notice >= 4400 && reply->
notice < 5500) {
1211 }
else if (reply->
notice == 2401 ||
1232 const char *method,
const char *url,
1233 const char *headers,
1234 const unsigned char *send_content,
1235 int send_content_length)
1238 char buf[4096], *out_buf;
1244 snprintf(buf,
sizeof(buf),
"%s %s RTSP/1.0\r\n", method, url);
1249 if (rt->
session_id[0] !=
'\0' && (!headers ||
1250 !strstr(headers,
"\nIf-Match:"))) {
1255 rt->
auth, url, method);
1260 if (send_content_length > 0 && send_content)
1261 av_strlcatf(buf,
sizeof(buf),
"Content-Length: %d\r\n", send_content_length);
1267 out_buf = base64buf;
1270 av_dlog(s,
"Sending:\n%s--\n", buf);
1273 if (send_content_length > 0 && send_content) {
1276 "with content data not supported\n");
1287 const char *url,
const char *headers)
1289 return rtsp_send_cmd_with_content_async(s, method, url, headers, NULL, 0);
1294 unsigned char **content_ptr)
1297 content_ptr, NULL, 0);
1301 const char *method,
const char *url,
1304 unsigned char **content_ptr,
1305 const unsigned char *send_content,
1306 int send_content_length)
1310 int ret, attempts = 0;
1314 if ((ret = rtsp_send_cmd_with_content_async(s, method, url, header,
1316 send_content_length)))
1340 int lower_transport,
const char *real_challenge)
1343 int rtx = 0, j, i, err,
interleave = 0, port_off;
1347 const char *trans_pref;
1350 trans_pref =
"x-pn-tng";
1352 trans_pref =
"RAW/RAW";
1354 trans_pref =
"RTP/AVP";
1364 port_off -= port_off & 0x01;
1366 for (j = rt->
rtp_port_min + port_off, i = 0; i < rt->nb_rtsp_streams; ++i) {
1367 char transport[2048];
1403 while (j <= rt->rtp_port_max) {
1404 ff_url_join(buf,
sizeof(buf),
"rtp", NULL, host, -1,
1405 "?localport=%d", j);
1419 snprintf(transport,
sizeof(transport) - 1,
1420 "%s/UDP;", trans_pref);
1422 av_strlcat(transport,
"unicast;",
sizeof(transport));
1424 "client_port=%d", port);
1427 av_strlcatf(transport,
sizeof(transport),
"-%d", port + 1);
1440 snprintf(transport,
sizeof(transport) - 1,
1441 "%s/TCP;", trans_pref);
1443 av_strlcat(transport,
"unicast;",
sizeof(transport));
1445 "interleaved=%d-%d",
1446 interleave, interleave + 1);
1451 snprintf(transport,
sizeof(transport) - 1,
1452 "%s/UDP;multicast", trans_pref);
1455 av_strlcat(transport,
";mode=record",
sizeof(transport));
1458 av_strlcat(transport,
";mode=play",
sizeof(transport));
1460 "Transport: %s\r\n",
1463 av_strlcat(cmd,
"x-Dynamic-Rate: 0\r\n",
sizeof(cmd));
1465 char real_res[41], real_csum[9];
1470 "RealChallenge2: %s, sd=%s\r\n",
1510 char url[1024],
options[30] =
"";
1511 const char *peer = host;
1514 av_strlcpy(options,
"?connect=1",
sizeof(options));
1535 char url[1024], namebuf[50], optbuf[20] =
"";
1549 snprintf(optbuf,
sizeof(optbuf),
"?ttl=%d", ttl);
1550 getnameinfo((
struct sockaddr*) &addr,
sizeof(addr),
1552 ff_url_join(url,
sizeof(url),
"rtp", NULL, namebuf,
1553 port,
"%s", optbuf);
1591 char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128];
1592 int port, err, tcp_fd;
1594 int lower_transport_mask = 0;
1595 char real_challenge[64] =
"";
1597 socklen_t peer_len =
sizeof(peer);
1624 host,
sizeof(host), &port, path,
sizeof(path), s->
filename);
1631 if (!lower_transport_mask)
1640 "only UDP and TCP are supported for output.\n");
1650 host, port,
"%s", path);
1654 char httpname[1024];
1655 char sessioncookie[17];
1658 ff_url_join(httpname,
sizeof(httpname),
"http", auth, host, port,
"%s", path);
1659 snprintf(sessioncookie,
sizeof(sessioncookie),
"%08x%08x",
1671 "x-sessioncookie: %s\r\n"
1672 "Accept: application/x-rtsp-tunnelled\r\n"
1673 "Pragma: no-cache\r\n"
1674 "Cache-Control: no-cache\r\n",
1693 "x-sessioncookie: %s\r\n"
1694 "Content-Type: application/x-rtsp-tunnelled\r\n"
1695 "Pragma: no-cache\r\n"
1696 "Cache-Control: no-cache\r\n"
1697 "Content-Length: 32767\r\n"
1698 "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
1728 ff_url_join(tcpname,
sizeof(tcpname),
"tcp", NULL, host, port,
1740 if (!getpeername(tcp_fd, (
struct sockaddr*) &peer, &peer_len)) {
1741 getnameinfo((
struct sockaddr*) &peer, peer_len, host,
sizeof(host),
1760 "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
1761 "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
1762 "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
1763 "GUID: 00000000-0000-0000-0000-000000000000\r\n",
1782 if (s->
iformat && CONFIG_RTSP_DEMUXER)
1784 else if (CONFIG_RTSP_MUXER)
1790 int lower_transport =
ff_log2_tab[lower_transport_mask &
1791 ~(lower_transport_mask - 1)];
1799 real_challenge : NULL);
1802 lower_transport_mask &= ~(1 << lower_transport);
1803 if (lower_transport_mask == 0 && err == 1) {
1804 err =
AVERROR(EPROTONOSUPPORT);
1831 uint8_t *buf,
int buf_size, int64_t wait_end)
1835 int n, i,
ret, tcp_fd, timeout_cnt = 0;
1837 struct pollfd *p = rt->
p;
1838 int *fds = NULL, fdsnum, fdsidx;
1848 p[max_p].fd = tcp_fd;
1849 p[max_p++].events = POLLIN;
1863 "Number of fds %d not supported\n", fdsnum);
1866 for (fdsidx = 0; fdsidx < fdsnum; fdsidx++) {
1867 p[max_p].fd = fds[fdsidx];
1868 p[max_p++].events = POLLIN;
1875 int j = 1 - (tcp_fd == -1);
1880 if (p[j].revents & POLLIN || p[j+1].revents & POLLIN) {
1883 *prtsp_st = rtsp_st;
1890 #if CONFIG_RTSP_DEMUXER
1891 if (tcp_fd != -1 && p[0].revents & POLLIN) {
1898 "Unable to answer to TEARDOWN\n");
1914 }
else if (n < 0 && errno != EINTR)
1946 "Unable to pick stream for packet - SSRC not known for "
1968 int64_t wait_end = 0;
1979 }
else if (rt->
ts && CONFIG_RTPDEC) {
1990 }
else if (ret == 1) {
1999 int64_t first_queue_time = 0;
2006 if (queue_time && (queue_time - first_queue_time < 0 ||
2007 !first_queue_time)) {
2008 first_queue_time = queue_time;
2012 if (first_queue_time) {
2013 wait_end = first_queue_time + s->
max_delay;
2016 first_queue_st = NULL;
2029 #if CONFIG_RTSP_DEMUXER
2046 len = pick_stream(s, &rtsp_st, rt->
recvbuf, len);
2051 if (len ==
AVERROR(EAGAIN) && first_queue_st &&
2053 rtsp_st = first_queue_st;
2089 if (rtpctx2 && st && st2 &&
2118 }
else if (rt->
ts && CONFIG_RTPDEC) {
2144 #if CONFIG_SDP_DEMUXER
2150 while (p < p_end && *p !=
'\0') {
2151 if (p +
sizeof(
"c=IN IP") - 1 < p_end &&
2155 while (p < p_end - 1 && *p !=
'\n') p++;
2164 static void append_source_addrs(
char *buf,
int size,
const char *
name,
2170 av_strlcatf(buf, size,
"&%s=%s", name, addrs[0]->addr);
2171 for (i = 1; i <
count; i++)
2199 content[
size] =
'\0';
2215 "?localport=%d&ttl=%d&connect=%d&write_to_source=%d",
2220 append_source_addrs(url,
sizeof(url),
"sources",
2223 append_source_addrs(url,
sizeof(url),
"block",
2249 static const AVClass sdp_demuxer_class = {
2264 .priv_class = &sdp_demuxer_class,
2268 #if CONFIG_RTP_DEMUXER
2279 char host[500], sdp[500];
2286 socklen_t addrlen =
sizeof(addr);
2298 ret =
ffurl_read(in, recvbuf,
sizeof(recvbuf));
2308 if ((recvbuf[0] & 0xc0) != 0x80) {
2317 payload_type = recvbuf[1] & 0x7f;
2326 "without an SDP file describing it\n",
2332 "properly you need an SDP file "
2336 av_url_split(NULL, 0, NULL, 0, host,
sizeof(host), &port,
2340 "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
2341 addr.ss_family == AF_INET ? 4 : 6, host,
2344 port, payload_type);
2355 ret = sdp_read_header(s);
2366 static const AVClass rtp_demuxer_class = {
2382 .priv_class = &rtp_demuxer_class,