54 #define POLL_TIMEOUT_MS 100
55 #define READ_PACKET_TIMEOUT_S 10
56 #define MAX_TIMEOUTS READ_PACKET_TIMEOUT_S * 1000 / POLL_TIMEOUT_MS
57 #define SDP_MAX_SIZE 16384
58 #define RECVBUF_SIZE 10 * RTP_MAX_PACKET_LENGTH
59 #define DEFAULT_REORDERING_DELAY 100000
61 #define OFFSET(x) offsetof(RTSPState, x)
62 #define DEC AV_OPT_FLAG_DECODING_PARAM
63 #define ENC AV_OPT_FLAG_ENCODING_PARAM
65 #define RTSP_FLAG_OPTS(name, longname) \
66 { name, longname, OFFSET(rtsp_flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, DEC, "rtsp_flags" }, \
67 { "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" }
69 #define RTSP_MEDIATYPE_OPTS(name, longname) \
70 { 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" }, \
71 { "video", "Video", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_VIDEO}, 0, 0, DEC, "allowed_media_types" }, \
72 { "audio", "Audio", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_AUDIO}, 0, 0, DEC, "allowed_media_types" }, \
73 { "data", "Data", 0, AV_OPT_TYPE_CONST, {.i64 = 1 << AVMEDIA_TYPE_DATA}, 0, 0, DEC, "allowed_media_types" }
75 #define RTSP_REORDERING_OPTS() \
76 { "reorder_queue_size", "Number of packets to buffer for handling of reordered packets", OFFSET(reordering_queue_size), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, DEC }
79 {
"initial_pause",
"Don't start playing the stream immediately",
OFFSET(initial_pause),
AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1,
DEC },
81 {
"rtsp_transport",
"RTSP transport protocols",
OFFSET(lower_transport_mask),
AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX,
DEC|
ENC,
"rtsp_transport" }, \
91 {
"timeout",
"Maximum timeout (in seconds) to wait for incoming connections. -1 is infinite. Implies flag listen",
OFFSET(initial_timeout),
AV_OPT_TYPE_INT, {.i64 = -1}, INT_MIN, INT_MAX,
DEC },
112 const char *sep,
const char **pp)
120 while (!strchr(sep, *p) && *p !=
'\0') {
121 if ((q - buf) < buf_size - 1)
133 if (**pp ==
'/') (*pp)++;
137 static void get_word(
char *buf,
int buf_size,
const char **pp)
172 memcpy(sock, ai->ai_addr,
FFMIN(
sizeof(*sock), ai->ai_addrlen));
186 if (handler->
alloc) {
196 int payload_type,
const char *p)
218 init_rtp_handler(handler, rtsp_st, codec);
271 char *value,
int value_size)
286 typedef struct SDPParseState {
291 int nb_default_include_source_addrs;
292 struct RTSPSource **default_include_source_addrs;
293 int nb_default_exclude_source_addrs;
294 struct RTSPSource **default_exclude_source_addrs;
297 static void copy_default_source_addrs(
struct RTSPSource **addrs,
int count,
302 for (i = 0; i < count; i++) {
304 rtsp_src2 =
av_malloc(
sizeof(*rtsp_src2));
307 memcpy(rtsp_src2, rtsp_src,
sizeof(*rtsp_src));
313 int letter,
const char *buf)
316 char buf1[64], st_type[64];
326 av_dlog(s,
"sdp: %c='%s'\n", letter, buf);
329 if (s1->skip_media && letter !=
'm')
334 if (strcmp(buf1,
"IN") != 0)
337 if (strcmp(buf1,
"IP4") && strcmp(buf1,
"IP6"))
349 s1->default_ip = sdp_ip;
350 s1->default_ttl = ttl;
370 get_word(st_type,
sizeof(st_type), &p);
371 if (!strcmp(st_type,
"audio")) {
373 }
else if (!strcmp(st_type,
"video")) {
375 }
else if (!strcmp(st_type,
"application")) {
388 rtsp_st->
sdp_ip = s1->default_ip;
389 rtsp_st->
sdp_ttl = s1->default_ttl;
391 copy_default_source_addrs(s1->default_include_source_addrs,
392 s1->nb_default_include_source_addrs,
395 copy_default_source_addrs(s1->default_exclude_source_addrs,
396 s1->nb_default_exclude_source_addrs,
404 if (!strcmp(buf1,
"udp"))
406 else if (strstr(buf1,
"/AVPF") || strstr(buf1,
"/SAVPF"))
422 init_rtp_handler(handler, rtsp_st,
NULL);
423 if (handler && handler->
init)
447 init_rtp_handler(handler, rtsp_st, st->
codec);
448 if (handler && handler->
init)
460 if (!strncmp(p,
"rtsp://", 7))
471 if (proto[0] ==
'\0') {
485 payload_type = atoi(buf1);
489 sdp_parse_rtpmap(s, st, rtsp_st, payload_type, p);
496 payload_type = atoi(buf1);
514 }
else if (
av_strstart(p,
"IsRealDataType:integer;",&p)) {
517 }
else if (
av_strstart(p,
"SampleRate:integer;", &p) &&
532 if (strcmp(buf1,
"incl") && strcmp(buf1,
"excl"))
534 exclude = !strcmp(buf1,
"excl");
537 if (strcmp(buf1,
"IN") != 0)
540 if (strcmp(buf1,
"IP4") && strcmp(buf1,
"IP6") && strcmp(buf1,
"*"))
552 dynarray_add(&s1->default_exclude_source_addrs, &s1->nb_default_exclude_source_addrs, rtsp_src);
559 dynarray_add(&s1->default_include_source_addrs, &s1->nb_default_include_source_addrs, rtsp_src);
600 SDPParseState sdp_parse_state = { { 0 } }, *s1 = &sdp_parse_state;
614 while (*p !=
'\n' && *p !=
'\r' && *p !=
'\0') {
615 if ((q - buf) <
sizeof(buf) - 1)
620 sdp_parse_line(s, s1, letter, buf);
622 while (*p !=
'\n' && *p !=
'\0')
628 for (i = 0; i < s1->nb_default_include_source_addrs; i++)
629 av_free(s1->default_include_source_addrs[i]);
630 av_freep(&s1->default_include_source_addrs);
631 for (i = 0; i < s1->nb_default_exclude_source_addrs; i++)
632 av_free(s1->default_exclude_source_addrs[i]);
633 av_freep(&s1->default_exclude_source_addrs);
715 if (reordering_queue_size < 0) {
717 reordering_queue_size = 0;
746 reordering_queue_size);
765 #if CONFIG_RTSP_DEMUXER || CONFIG_RTSP_MUXER
766 static void rtsp_parse_range(
int *min_ptr,
int *max_ptr,
const char **pp)
774 v = strtol(q, &p, 10);
778 v = strtol(p, &p, 10);
790 char transport_protocol[16];
792 char lower_transport[16];
806 get_word_sep(transport_protocol,
sizeof(transport_protocol),
810 lower_transport[0] =
'\0';
817 }
else if (!
av_strcasecmp (transport_protocol,
"x-pn-tng") ||
820 get_word_sep(lower_transport,
sizeof(lower_transport),
"/;,", &p);
825 lower_transport[0] =
'\0';
841 while (*p !=
'\0' && *p !=
',') {
843 if (!strcmp(parameter,
"port")) {
848 }
else if (!strcmp(parameter,
"client_port")) {
854 }
else if (!strcmp(parameter,
"server_port")) {
860 }
else if (!strcmp(parameter,
"interleaved")) {
866 }
else if (!strcmp(parameter,
"multicast")) {
869 }
else if (!strcmp(parameter,
"ttl")) {
873 th->
ttl = strtol(p, &end, 10);
876 }
else if (!strcmp(parameter,
"destination")) {
882 }
else if (!strcmp(parameter,
"source")) {
888 }
else if (!strcmp(parameter,
"mode")) {
892 if (!strcmp(buf,
"record") ||
893 !strcmp(buf,
"receive"))
898 while (*p !=
';' && *p !=
'\0' && *p !=
',')
912 static void handle_rtp_info(
RTSPState *rt,
const char *url,
913 uint32_t seq, uint32_t rtptime)
916 if (!rtptime || !url[0])
932 static void rtsp_parse_rtp_info(
RTSPState *rt,
const char *p)
935 char key[20], value[1024], url[1024] =
"";
936 uint32_t seq = 0, rtptime = 0;
948 if (!strcmp(key,
"url"))
950 else if (!strcmp(key,
"seq"))
951 seq = strtoul(value,
NULL, 10);
952 else if (!strcmp(key,
"rtptime"))
953 rtptime = strtoul(value,
NULL, 10);
955 handle_rtp_info(rt, url, seq, rtptime);
964 handle_rtp_info(rt, url, seq, rtptime);
978 (t = strtol(p,
NULL, 10)) > 0) {
984 rtsp_parse_transport(reply, p);
986 reply->
seq = strtol(p,
NULL, 10);
1001 }
else if (
av_stristart(p,
"WWW-Authenticate:", &p) && rt) {
1004 }
else if (
av_stristart(p,
"Authentication-Info:", &p) && rt) {
1007 }
else if (
av_stristart(p,
"Content-Base:", &p) && rt) {
1009 if (method && !strcmp(method,
"DESCRIBE"))
1013 if (method && !strcmp(method,
"PLAY"))
1014 rtsp_parse_rtp_info(rt, p);
1016 if (strstr(p,
"GET_PARAMETER") &&
1017 method && !strcmp(method,
"OPTIONS"))
1019 }
else if (
av_stristart(p,
"x-Accept-Dynamic-Rate:", &p) && rt) {
1040 av_dlog(s,
"skipping RTP packet len=%d\n", len);
1045 if (len1 >
sizeof(buf))
1055 unsigned char **content_ptr,
1056 int return_on_interleaved_data,
const char *method)
1059 char buf[4096], buf1[1024], *q;
1062 int ret, content_length, line_count = 0, request = 0;
1063 unsigned char *content =
NULL;
1069 memset(reply, 0,
sizeof(*reply));
1077 av_dlog(s,
"ret=%d c=%02x [%c]\n", ret, ch, ch);
1084 if (return_on_interleaved_data) {
1088 }
else if (ch !=
'\r') {
1089 if ((q - buf) <
sizeof(buf) - 1)
1095 av_dlog(s,
"line='%s'\n", buf);
1101 if (line_count == 0) {
1104 if (!strncmp(buf1,
"RTSP/", 5)) {
1125 if (content_length > 0) {
1127 content =
av_malloc(content_length + 1);
1129 content[content_length] =
'\0';
1132 *content_ptr = content;
1139 const char* ptr = buf;
1141 if (!strcmp(reply->
reason,
"OPTIONS")) {
1142 snprintf(buf,
sizeof(buf),
"RTSP/1.0 200 OK\r\n");
1149 snprintf(buf,
sizeof(buf),
"RTSP/1.0 501 Not Implemented\r\n");
1174 if (rt->
seq != reply->
seq) {
1180 if (reply->
notice == 2101 ||
1182 reply->
notice == 2306 ) {
1184 }
else if (reply->
notice >= 4400 && reply->
notice < 5500) {
1186 }
else if (reply->
notice == 2401 ||
1207 const char *method,
const char *url,
1208 const char *headers,
1209 const unsigned char *send_content,
1210 int send_content_length)
1213 char buf[4096], *out_buf;
1219 snprintf(buf,
sizeof(buf),
"%s %s RTSP/1.0\r\n", method, url);
1224 if (rt->
session_id[0] !=
'\0' && (!headers ||
1225 !strstr(headers,
"\nIf-Match:"))) {
1230 rt->
auth, url, method);
1235 if (send_content_length > 0 && send_content)
1236 av_strlcatf(buf,
sizeof(buf),
"Content-Length: %d\r\n", send_content_length);
1242 out_buf = base64buf;
1245 av_dlog(s,
"Sending:\n%s--\n", buf);
1248 if (send_content_length > 0 && send_content) {
1251 "with content data not supported\n");
1262 const char *url,
const char *headers)
1264 return rtsp_send_cmd_with_content_async(s, method, url, headers,
NULL, 0);
1269 unsigned char **content_ptr)
1272 content_ptr,
NULL, 0);
1276 const char *method,
const char *url,
1279 unsigned char **content_ptr,
1280 const unsigned char *send_content,
1281 int send_content_length)
1285 int ret, attempts = 0;
1289 if ((ret = rtsp_send_cmd_with_content_async(s, method, url, header,
1291 send_content_length)))
1315 int lower_transport,
const char *real_challenge)
1318 int rtx = 0, j, i, err, interleave = 0, port_off;
1322 const char *trans_pref;
1325 trans_pref =
"x-pn-tng";
1327 trans_pref =
"RAW/RAW";
1329 trans_pref =
"RTP/AVP";
1343 port_off -= port_off & 0x01;
1345 for (j = rt->
rtp_port_min + port_off, i = 0; i < rt->nb_rtsp_streams; ++i) {
1346 char transport[2048];
1382 while (j <= rt->rtp_port_max) {
1384 "?localport=%d", j);
1399 snprintf(transport,
sizeof(transport) - 1,
1400 "%s/UDP;", trans_pref);
1402 av_strlcat(transport,
"unicast;",
sizeof(transport));
1404 "client_port=%d", port);
1407 av_strlcatf(transport,
sizeof(transport),
"-%d", port + 1);
1420 snprintf(transport,
sizeof(transport) - 1,
1421 "%s/TCP;", trans_pref);
1423 av_strlcat(transport,
"unicast;",
sizeof(transport));
1425 "interleaved=%d-%d",
1426 interleave, interleave + 1);
1431 snprintf(transport,
sizeof(transport) - 1,
1432 "%s/UDP;multicast", trans_pref);
1435 av_strlcat(transport,
";mode=record",
sizeof(transport));
1438 av_strlcat(transport,
";mode=play",
sizeof(transport));
1439 snprintf(cmd,
sizeof(cmd),
1440 "Transport: %s\r\n",
1443 av_strlcat(cmd,
"x-Dynamic-Rate: 0\r\n",
sizeof(cmd));
1445 char real_res[41], real_csum[9];
1450 "RealChallenge2: %s, sd=%s\r\n",
1490 char url[1024],
options[30] =
"";
1491 const char *peer = host;
1494 av_strlcpy(options,
"?connect=1",
sizeof(options));
1515 char url[1024], namebuf[50], optbuf[20] =
"";
1529 snprintf(optbuf,
sizeof(optbuf),
"?ttl=%d", ttl);
1530 getnameinfo((
struct sockaddr*) &addr,
sizeof(addr),
1533 port,
"%s", optbuf);
1571 char host[1024], path[1024], tcpname[1024], cmd[2048], auth[128];
1572 int port, err, tcp_fd;
1574 int lower_transport_mask = 0;
1575 char real_challenge[64] =
"";
1577 socklen_t peer_len =
sizeof(peer);
1604 host,
sizeof(host), &port, path,
sizeof(path), s->
filename);
1611 if (!lower_transport_mask)
1620 "only UDP and TCP are supported for output.\n");
1630 host, port,
"%s", path);
1634 char httpname[1024];
1635 char sessioncookie[17];
1638 ff_url_join(httpname,
sizeof(httpname),
"http", auth, host, port,
"%s", path);
1639 snprintf(sessioncookie,
sizeof(sessioncookie),
"%08x%08x",
1650 snprintf(headers,
sizeof(headers),
1651 "x-sessioncookie: %s\r\n"
1652 "Accept: application/x-rtsp-tunnelled\r\n"
1653 "Pragma: no-cache\r\n"
1654 "Cache-Control: no-cache\r\n",
1672 snprintf(headers,
sizeof(headers),
1673 "x-sessioncookie: %s\r\n"
1674 "Content-Type: application/x-rtsp-tunnelled\r\n"
1675 "Pragma: no-cache\r\n"
1676 "Cache-Control: no-cache\r\n"
1677 "Content-Length: 32767\r\n"
1678 "Expires: Sun, 9 Jan 1972 00:00:00 GMT\r\n",
1719 if (!getpeername(tcp_fd, (
struct sockaddr*) &peer, &peer_len)) {
1720 getnameinfo((
struct sockaddr*) &peer, peer_len, host,
sizeof(host),
1739 "ClientChallenge: 9e26d33f2984236010ef6253fb1887f7\r\n"
1740 "PlayerStarttime: [28/03/2003:22:50:23 00:00]\r\n"
1741 "CompanyID: KnKV4M4I/B2FjJ1TToLycw==\r\n"
1742 "GUID: 00000000-0000-0000-0000-000000000000\r\n",
1769 int lower_transport =
ff_log2_tab[lower_transport_mask &
1770 ~(lower_transport_mask - 1)];
1774 real_challenge :
NULL);
1777 lower_transport_mask &= ~(1 << lower_transport);
1778 if (lower_transport_mask == 0 && err == 1) {
1779 err =
AVERROR(EPROTONOSUPPORT);
1806 uint8_t *buf,
int buf_size, int64_t wait_end)
1810 int n, i, ret, tcp_fd, timeout_cnt = 0;
1812 struct pollfd *p = rt->
p;
1813 int *fds =
NULL, fdsnum, fdsidx;
1823 p[max_p].fd = tcp_fd;
1824 p[max_p++].events = POLLIN;
1838 "Number of fds %d not supported\n", fdsnum);
1841 for (fdsidx = 0; fdsidx < fdsnum; fdsidx++) {
1842 p[max_p].fd = fds[fdsidx];
1843 p[max_p++].events = POLLIN;
1850 int j = 1 - (tcp_fd == -1);
1855 if (p[j].revents & POLLIN || p[j+1].revents & POLLIN) {
1858 *prtsp_st = rtsp_st;
1865 #if CONFIG_RTSP_DEMUXER
1866 if (tcp_fd != -1 && p[0].revents & POLLIN) {
1873 "Unable to answer to TEARDOWN\n");
1889 }
else if (n < 0 && errno != EINTR)
1921 "Unable to pick stream for packet - SSRC not known for "
1943 int64_t wait_end = 0;
1965 }
else if (ret == 1) {
1974 int64_t first_queue_time = 0;
1981 if (queue_time && (queue_time - first_queue_time < 0 ||
1982 !first_queue_time)) {
1983 first_queue_time = queue_time;
1987 if (first_queue_time) {
1988 wait_end = first_queue_time + s->
max_delay;
1991 first_queue_st =
NULL;
2004 #if CONFIG_RTSP_DEMUXER
2021 len = pick_stream(s, &rtsp_st, rt->
recvbuf, len);
2026 if (len ==
AVERROR(EAGAIN) && first_queue_st &&
2028 rtsp_st = first_queue_st;
2064 if (rtpctx2 && st && st2 &&
2109 #if CONFIG_SDP_DEMUXER
2115 while (p < p_end && *p !=
'\0') {
2116 if (p +
sizeof(
"c=IN IP") - 1 < p_end &&
2120 while (p < p_end - 1 && *p !=
'\n') p++;
2129 static void append_source_addrs(
char *buf,
int size,
const char *
name,
2135 av_strlcatf(buf, size,
"&%s=%s", name, addrs[0]->addr);
2136 for (i = 1; i < count; i++)
2164 content[
size] =
'\0';
2180 "?localport=%d&ttl=%d&connect=%d&write_to_source=%d",
2185 append_source_addrs(url,
sizeof(url),
"sources",
2188 append_source_addrs(url,
sizeof(url),
"block",
2214 static const AVClass sdp_demuxer_class = {
2229 .priv_class = &sdp_demuxer_class,
2233 #if CONFIG_RTP_DEMUXER
2244 char host[500], sdp[500];
2251 socklen_t addrlen =
sizeof(addr);
2263 ret =
ffurl_read(in, recvbuf,
sizeof(recvbuf));
2273 if ((recvbuf[0] & 0xc0) != 0x80) {
2282 payload_type = recvbuf[1] & 0x7f;
2291 "without an SDP file describing it\n",
2297 "properly you need an SDP file "
2304 snprintf(sdp,
sizeof(sdp),
2305 "v=0\r\nc=IN IP%d %s\r\nm=%s %d RTP/AVP %d\r\n",
2306 addr.ss_family == AF_INET ? 4 : 6, host,
2309 port, payload_type);
2320 ret = sdp_read_header(s);
2331 static const AVClass rtp_demuxer_class = {
2347 .priv_class = &rtp_demuxer_class,