#include "libavutil/avstring.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
+#include "libavutil/random_seed.h"
+#include "libavutil/time.h"
#include "avformat.h"
#include "internal.h"
#include "network.h"
#include "os_support.h"
+#include "rtpproto.h"
#include "rtsp.h"
#include "rdt.h"
+#include "tls.h"
+#include "url.h"
+
+static const struct RTSPStatusMessage {
+ enum RTSPStatusCode code;
+ const char *message;
+} status_messages[] = {
+ { RTSP_STATUS_OK, "OK" },
+ { RTSP_STATUS_METHOD, "Method Not Allowed" },
+ { RTSP_STATUS_BANDWIDTH, "Not Enough Bandwidth" },
+ { RTSP_STATUS_SESSION, "Session Not Found" },
+ { RTSP_STATUS_STATE, "Method Not Valid in This State" },
+ { RTSP_STATUS_AGGREGATE, "Aggregate operation not allowed" },
+ { RTSP_STATUS_ONLY_AGGREGATE, "Only aggregate operation allowed" },
+ { RTSP_STATUS_TRANSPORT, "Unsupported transport" },
+ { RTSP_STATUS_INTERNAL, "Internal Server Error" },
+ { RTSP_STATUS_SERVICE, "Service Unavailable" },
+ { RTSP_STATUS_VERSION, "RTSP Version not supported" },
+ { 0, "NULL" }
+};
+
+static int rtsp_read_close(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+
+ if (!(rt->rtsp_flags & RTSP_FLAG_LISTEN))
+ ff_rtsp_send_cmd_async(s, "TEARDOWN", rt->control_uri, NULL);
+
+ ff_rtsp_close_streams(s);
+ ff_rtsp_close_connections(s);
+ ff_network_close();
+ rt->real_setup = NULL;
+ av_freep(&rt->real_setup_cache);
+ return 0;
+}
+
+static inline int read_line(AVFormatContext *s, char *rbuf, const int rbufsize,
+ int *rbuflen)
+{
+ RTSPState *rt = s->priv_data;
+ int idx = 0;
+ int ret = 0;
+ *rbuflen = 0;
+
+ do {
+ ret = ffurl_read_complete(rt->rtsp_hd, rbuf + idx, 1);
+ if (ret <= 0)
+ return ret ? ret : AVERROR_EOF;
+ if (rbuf[idx] == '\r') {
+ /* Ignore */
+ } else if (rbuf[idx] == '\n') {
+ rbuf[idx] = '\0';
+ *rbuflen = idx;
+ return 0;
+ } else
+ idx++;
+ } while (idx < rbufsize);
+ av_log(s, AV_LOG_ERROR, "Message too long\n");
+ return AVERROR(EIO);
+}
+
+static int rtsp_send_reply(AVFormatContext *s, enum RTSPStatusCode code,
+ const char *extracontent, uint16_t seq)
+{
+ RTSPState *rt = s->priv_data;
+ char message[4096];
+ int index = 0;
+ while (status_messages[index].code) {
+ if (status_messages[index].code == code) {
+ snprintf(message, sizeof(message), "RTSP/1.0 %d %s\r\n",
+ code, status_messages[index].message);
+ break;
+ }
+ index++;
+ }
+ if (!status_messages[index].code)
+ return AVERROR(EINVAL);
+ av_strlcatf(message, sizeof(message), "CSeq: %d\r\n", seq);
+ av_strlcatf(message, sizeof(message), "Server: %s\r\n", LIBAVFORMAT_IDENT);
+ if (extracontent)
+ av_strlcat(message, extracontent, sizeof(message));
+ av_strlcat(message, "\r\n", sizeof(message));
+ av_log(s, AV_LOG_TRACE, "Sending response:\n%s", message);
+ ffurl_write(rt->rtsp_hd_out, message, strlen(message));
+
+ return 0;
+}
+
+static inline int check_sessionid(AVFormatContext *s,
+ RTSPMessageHeader *request)
+{
+ RTSPState *rt = s->priv_data;
+ unsigned char *session_id = rt->session_id;
+ if (!session_id[0]) {
+ av_log(s, AV_LOG_WARNING, "There is no session-id at the moment\n");
+ return 0;
+ }
+ if (strcmp(session_id, request->session_id)) {
+ av_log(s, AV_LOG_ERROR, "Unexpected session-id %s\n",
+ request->session_id);
+ rtsp_send_reply(s, RTSP_STATUS_SESSION, NULL, request->seq);
+ return AVERROR_STREAM_NOT_FOUND;
+ }
+ return 0;
+}
+
+static inline int rtsp_read_request(AVFormatContext *s,
+ RTSPMessageHeader *request,
+ const char *method)
+{
+ RTSPState *rt = s->priv_data;
+ char rbuf[1024];
+ int rbuflen, ret;
+ do {
+ ret = read_line(s, rbuf, sizeof(rbuf), &rbuflen);
+ if (ret)
+ return ret;
+ if (rbuflen > 1) {
+ av_log(s, AV_LOG_TRACE, "Parsing[%d]: %s\n", rbuflen, rbuf);
+ ff_rtsp_parse_line(s, request, rbuf, rt, method);
+ }
+ } while (rbuflen > 0);
+ if (request->seq != rt->seq + 1) {
+ av_log(s, AV_LOG_ERROR, "Unexpected Sequence number %d\n",
+ request->seq);
+ return AVERROR(EINVAL);
+ }
+ if (rt->session_id[0] && strcmp(method, "OPTIONS")) {
+ ret = check_sessionid(s, request);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rtsp_read_announce(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ RTSPMessageHeader request = { 0 };
+ char sdp[4096];
+ int ret;
+
+ ret = rtsp_read_request(s, &request, "ANNOUNCE");
+ if (ret)
+ return ret;
+ rt->seq++;
+ if (strcmp(request.content_type, "application/sdp")) {
+ av_log(s, AV_LOG_ERROR, "Unexpected content type %s\n",
+ request.content_type);
+ rtsp_send_reply(s, RTSP_STATUS_SERVICE, NULL, request.seq);
+ return AVERROR_OPTION_NOT_FOUND;
+ }
+ if (request.content_length && request.content_length < sizeof(sdp) - 1) {
+ /* Read SDP */
+ if (ffurl_read_complete(rt->rtsp_hd, sdp, request.content_length)
+ < request.content_length) {
+ av_log(s, AV_LOG_ERROR,
+ "Unable to get complete SDP Description in ANNOUNCE\n");
+ rtsp_send_reply(s, RTSP_STATUS_INTERNAL, NULL, request.seq);
+ return AVERROR(EIO);
+ }
+ sdp[request.content_length] = '\0';
+ av_log(s, AV_LOG_VERBOSE, "SDP: %s\n", sdp);
+ ret = ff_sdp_parse(s, sdp);
+ if (ret)
+ return ret;
+ rtsp_send_reply(s, RTSP_STATUS_OK, NULL, request.seq);
+ return 0;
+ }
+ av_log(s, AV_LOG_ERROR,
+ "Content-Length header value exceeds sdp allocated buffer (4KB)\n");
+ rtsp_send_reply(s, RTSP_STATUS_INTERNAL,
+ "Content-Length exceeds buffer size", request.seq);
+ return AVERROR(EIO);
+}
+
+static int rtsp_read_options(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ RTSPMessageHeader request = { 0 };
+ int ret = 0;
+
+ /* Parsing headers */
+ ret = rtsp_read_request(s, &request, "OPTIONS");
+ if (ret)
+ return ret;
+ rt->seq++;
+ /* Send Reply */
+ rtsp_send_reply(s, RTSP_STATUS_OK,
+ "Public: ANNOUNCE, PAUSE, SETUP, TEARDOWN, RECORD\r\n",
+ request.seq);
+ return 0;
+}
+
+static int rtsp_read_setup(AVFormatContext *s, char* host, char *controlurl)
+{
+ RTSPState *rt = s->priv_data;
+ RTSPMessageHeader request = { 0 };
+ int ret = 0;
+ char url[1024];
+ RTSPStream *rtsp_st;
+ char responseheaders[1024];
+ int localport = -1;
+ int transportidx = 0;
+ int streamid = 0;
-//#define DEBUG
-//#define DEBUG_RTP_TCP
+ ret = rtsp_read_request(s, &request, "SETUP");
+ if (ret)
+ return ret;
+ rt->seq++;
+ if (!request.nb_transports) {
+ av_log(s, AV_LOG_ERROR, "No transport defined in SETUP\n");
+ return AVERROR_INVALIDDATA;
+ }
+ for (transportidx = 0; transportidx < request.nb_transports;
+ transportidx++) {
+ if (!request.transports[transportidx].mode_record ||
+ (request.transports[transportidx].lower_transport !=
+ RTSP_LOWER_TRANSPORT_UDP &&
+ request.transports[transportidx].lower_transport !=
+ RTSP_LOWER_TRANSPORT_TCP)) {
+ av_log(s, AV_LOG_ERROR, "mode=record/receive not set or transport"
+ " protocol not supported (yet)\n");
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ if (request.nb_transports > 1)
+ av_log(s, AV_LOG_WARNING, "More than one transport not supported, "
+ "using first of all\n");
+ for (streamid = 0; streamid < rt->nb_rtsp_streams; streamid++) {
+ if (!strcmp(rt->rtsp_streams[streamid]->control_url,
+ controlurl))
+ break;
+ }
+ if (streamid == rt->nb_rtsp_streams) {
+ av_log(s, AV_LOG_ERROR, "Unable to find requested track\n");
+ return AVERROR_STREAM_NOT_FOUND;
+ }
+ rtsp_st = rt->rtsp_streams[streamid];
+ localport = rt->rtp_port_min;
+
+ if (request.transports[0].lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
+ rt->lower_transport = RTSP_LOWER_TRANSPORT_TCP;
+ if ((ret = ff_rtsp_open_transport_ctx(s, rtsp_st))) {
+ rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq);
+ return ret;
+ }
+ rtsp_st->interleaved_min = request.transports[0].interleaved_min;
+ rtsp_st->interleaved_max = request.transports[0].interleaved_max;
+ snprintf(responseheaders, sizeof(responseheaders), "Transport: "
+ "RTP/AVP/TCP;unicast;mode=receive;interleaved=%d-%d"
+ "\r\n", request.transports[0].interleaved_min,
+ request.transports[0].interleaved_max);
+ } else {
+ do {
+ AVDictionary *opts = NULL;
+ char buf[256];
+ snprintf(buf, sizeof(buf), "%d", rt->buffer_size);
+ av_dict_set(&opts, "buffer_size", buf, 0);
+ ff_url_join(url, sizeof(url), "rtp", NULL, host, localport, NULL);
+ av_log(s, AV_LOG_TRACE, "Opening: %s", url);
+ ret = ffurl_open(&rtsp_st->rtp_handle, url, AVIO_FLAG_READ_WRITE,
+ &s->interrupt_callback, &opts, rt->protocols, NULL);
+ av_dict_free(&opts);
+ if (ret)
+ localport += 2;
+ } while (ret || localport > rt->rtp_port_max);
+ if (localport > rt->rtp_port_max) {
+ rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq);
+ return ret;
+ }
+
+ av_log(s, AV_LOG_TRACE, "Listening on: %d",
+ ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle));
+ if ((ret = ff_rtsp_open_transport_ctx(s, rtsp_st))) {
+ rtsp_send_reply(s, RTSP_STATUS_TRANSPORT, NULL, request.seq);
+ return ret;
+ }
+
+ localport = ff_rtp_get_local_rtp_port(rtsp_st->rtp_handle);
+ snprintf(responseheaders, sizeof(responseheaders), "Transport: "
+ "RTP/AVP/UDP;unicast;mode=receive;source=%s;"
+ "client_port=%d-%d;server_port=%d-%d\r\n",
+ host, request.transports[0].client_port_min,
+ request.transports[0].client_port_max, localport,
+ localport + 1);
+ }
+
+ /* Establish sessionid if not previously set */
+ /* Put this in a function? */
+ /* RFC 2326: session id must be at least 8 digits */
+ while (strlen(rt->session_id) < 8)
+ av_strlcatf(rt->session_id, 512, "%u", av_get_random_seed());
+
+ av_strlcatf(responseheaders, sizeof(responseheaders), "Session: %s\r\n",
+ rt->session_id);
+ /* Send Reply */
+ rtsp_send_reply(s, RTSP_STATUS_OK, responseheaders, request.seq);
+
+ rt->state = RTSP_STATE_PAUSED;
+ return 0;
+}
+
+static int rtsp_read_record(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ RTSPMessageHeader request = { 0 };
+ int ret = 0;
+ char responseheaders[1024];
+
+ ret = rtsp_read_request(s, &request, "RECORD");
+ if (ret)
+ return ret;
+ ret = check_sessionid(s, &request);
+ if (ret)
+ return ret;
+ rt->seq++;
+ snprintf(responseheaders, sizeof(responseheaders), "Session: %s\r\n",
+ rt->session_id);
+ rtsp_send_reply(s, RTSP_STATUS_OK, responseheaders, request.seq);
+
+ rt->state = RTSP_STATE_STREAMING;
+ return 0;
+}
+
+static inline int parse_command_line(AVFormatContext *s, const char *line,
+ int linelen, char *uri, int urisize,
+ char *method, int methodsize,
+ enum RTSPMethod *methodcode)
+{
+ RTSPState *rt = s->priv_data;
+ const char *linept, *searchlinept;
+ linept = strchr(line, ' ');
+
+ if (!linept)
+ return AVERROR_INVALIDDATA;
+
+ if (linept - line > methodsize - 1) {
+ av_log(s, AV_LOG_ERROR, "Method string too long\n");
+ return AVERROR(EIO);
+ }
+ memcpy(method, line, linept - line);
+ method[linept - line] = '\0';
+ linept++;
+ if (!strcmp(method, "ANNOUNCE"))
+ *methodcode = ANNOUNCE;
+ else if (!strcmp(method, "OPTIONS"))
+ *methodcode = OPTIONS;
+ else if (!strcmp(method, "RECORD"))
+ *methodcode = RECORD;
+ else if (!strcmp(method, "SETUP"))
+ *methodcode = SETUP;
+ else if (!strcmp(method, "PAUSE"))
+ *methodcode = PAUSE;
+ else if (!strcmp(method, "TEARDOWN"))
+ *methodcode = TEARDOWN;
+ else
+ *methodcode = UNKNOWN;
+ /* Check method with the state */
+ if (rt->state == RTSP_STATE_IDLE) {
+ if ((*methodcode != ANNOUNCE) && (*methodcode != OPTIONS)) {
+ av_log(s, AV_LOG_ERROR, "Unexpected command in Idle State %s\n",
+ line);
+ return AVERROR_PROTOCOL_NOT_FOUND;
+ }
+ } else if (rt->state == RTSP_STATE_PAUSED) {
+ if ((*methodcode != OPTIONS) && (*methodcode != RECORD)
+ && (*methodcode != SETUP)) {
+ av_log(s, AV_LOG_ERROR, "Unexpected command in Paused State %s\n",
+ line);
+ return AVERROR_PROTOCOL_NOT_FOUND;
+ }
+ } else if (rt->state == RTSP_STATE_STREAMING) {
+ if ((*methodcode != PAUSE) && (*methodcode != OPTIONS)
+ && (*methodcode != TEARDOWN)) {
+ av_log(s, AV_LOG_ERROR, "Unexpected command in Streaming State"
+ " %s\n", line);
+ return AVERROR_PROTOCOL_NOT_FOUND;
+ }
+ } else {
+ av_log(s, AV_LOG_ERROR, "Unexpected State [%d]\n", rt->state);
+ return AVERROR_BUG;
+ }
+
+ searchlinept = strchr(linept, ' ');
+ if (!searchlinept) {
+ av_log(s, AV_LOG_ERROR, "Error parsing message URI\n");
+ return AVERROR_INVALIDDATA;
+ }
+ if (searchlinept - linept > urisize - 1) {
+ av_log(s, AV_LOG_ERROR, "uri string length exceeded buffer size\n");
+ return AVERROR(EIO);
+ }
+ memcpy(uri, linept, searchlinept - linept);
+ uri[searchlinept - linept] = '\0';
+ if (strcmp(rt->control_uri, uri)) {
+ char host[128], path[512], auth[128];
+ int port;
+ char ctl_host[128], ctl_path[512], ctl_auth[128];
+ int ctl_port;
+ av_url_split(NULL, 0, auth, sizeof(auth), host, sizeof(host), &port,
+ path, sizeof(path), uri);
+ av_url_split(NULL, 0, ctl_auth, sizeof(ctl_auth), ctl_host,
+ sizeof(ctl_host), &ctl_port, ctl_path, sizeof(ctl_path),
+ rt->control_uri);
+ if (strcmp(host, ctl_host))
+ av_log(s, AV_LOG_INFO, "Host %s differs from expected %s\n",
+ host, ctl_host);
+ if (strcmp(path, ctl_path) && *methodcode != SETUP)
+ av_log(s, AV_LOG_WARNING, "WARNING: Path %s differs from expected"
+ " %s\n", path, ctl_path);
+ if (*methodcode == ANNOUNCE) {
+ av_log(s, AV_LOG_INFO,
+ "Updating control URI to %s\n", uri);
+ av_strlcpy(rt->control_uri, uri, sizeof(rt->control_uri));
+ }
+ }
+
+ linept = searchlinept + 1;
+ if (!av_strstart(linept, "RTSP/1.0", NULL)) {
+ av_log(s, AV_LOG_ERROR, "Error parsing protocol or version\n");
+ return AVERROR_PROTOCOL_NOT_FOUND;
+ }
+ return 0;
+}
+
+int ff_rtsp_parse_streaming_commands(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ unsigned char rbuf[4096];
+ unsigned char method[10];
+ char uri[500];
+ int ret;
+ int rbuflen = 0;
+ RTSPMessageHeader request = { 0 };
+ enum RTSPMethod methodcode;
+
+ ret = read_line(s, rbuf, sizeof(rbuf), &rbuflen);
+ if (ret < 0)
+ return ret;
+ ret = parse_command_line(s, rbuf, rbuflen, uri, sizeof(uri), method,
+ sizeof(method), &methodcode);
+ if (ret) {
+ av_log(s, AV_LOG_ERROR, "RTSP: Unexpected Command\n");
+ return ret;
+ }
+
+ ret = rtsp_read_request(s, &request, method);
+ if (ret)
+ return ret;
+ rt->seq++;
+ if (methodcode == PAUSE) {
+ rt->state = RTSP_STATE_PAUSED;
+ ret = rtsp_send_reply(s, RTSP_STATUS_OK, NULL , request.seq);
+ // TODO: Missing date header in response
+ } else if (methodcode == OPTIONS) {
+ ret = rtsp_send_reply(s, RTSP_STATUS_OK,
+ "Public: ANNOUNCE, PAUSE, SETUP, TEARDOWN, "
+ "RECORD\r\n", request.seq);
+ } else if (methodcode == TEARDOWN) {
+ rt->state = RTSP_STATE_IDLE;
+ ret = rtsp_send_reply(s, RTSP_STATUS_OK, NULL , request.seq);
+ return 0;
+ }
+ return ret;
+}
static int rtsp_read_play(AVFormatContext *s)
{
av_log(s, AV_LOG_DEBUG, "hello state=%d\n", rt->state);
rt->nb_byes = 0;
+ if (rt->lower_transport == RTSP_LOWER_TRANSPORT_UDP) {
+ for (i = 0; i < rt->nb_rtsp_streams; i++) {
+ RTSPStream *rtsp_st = rt->rtsp_streams[i];
+ /* Try to initialize the connection state in a
+ * potential NAT router by sending dummy packets.
+ * RTP/RTCP dummy packets are used for RDT, too.
+ */
+ if (rtsp_st->rtp_handle &&
+ !(rt->server_type == RTSP_SERVER_WMS && i > 1))
+ ff_rtp_send_punch_packets(rtsp_st->rtp_handle);
+ }
+ }
if (!(rt->server_type == RTSP_SERVER_REAL && rt->need_subscription)) {
if (rt->transport == RTSP_TRANSPORT_RTP) {
for (i = 0; i < rt->nb_rtsp_streams; i++) {
rtpctx->last_rtcp_ntp_time = AV_NOPTS_VALUE;
rtpctx->first_rtcp_ntp_time = AV_NOPTS_VALUE;
rtpctx->base_timestamp = 0;
+ rtpctx->timestamp = 0;
+ rtpctx->unwrapped_timestamp = 0;
rtpctx->rtcp_ts_offset = 0;
}
}
return 0;
}
+static int rtsp_listen(AVFormatContext *s)
+{
+ RTSPState *rt = s->priv_data;
+ char proto[128], host[128], path[512], auth[128];
+ char uri[500];
+ int port;
+ int default_port = RTSP_DEFAULT_PORT;
+ char tcpname[500];
+ const char *lower_proto = "tcp";
+ unsigned char rbuf[4096];
+ unsigned char method[10];
+ int rbuflen = 0;
+ int ret;
+ enum RTSPMethod methodcode;
+
+ if (!rt->protocols) {
+ rt->protocols = ffurl_get_protocols(s->protocol_whitelist,
+ s->protocol_blacklist);
+ if (!rt->protocols)
+ return AVERROR(ENOMEM);
+ }
+
+ /* extract hostname and port */
+ av_url_split(proto, sizeof(proto), auth, sizeof(auth), host, sizeof(host),
+ &port, path, sizeof(path), s->filename);
+
+ /* ff_url_join. No authorization by now (NULL) */
+ ff_url_join(rt->control_uri, sizeof(rt->control_uri), proto, NULL, host,
+ port, "%s", path);
+
+ if (!strcmp(proto, "rtsps")) {
+ lower_proto = "tls";
+ default_port = RTSPS_DEFAULT_PORT;
+ }
+
+ if (port < 0)
+ port = default_port;
+
+ /* Create TCP connection */
+ ff_url_join(tcpname, sizeof(tcpname), lower_proto, NULL, host, port,
+ "?listen&listen_timeout=%d", rt->initial_timeout * 1000);
+
+ if (ret = ffurl_open(&rt->rtsp_hd, tcpname, AVIO_FLAG_READ_WRITE,
+ &s->interrupt_callback, NULL, rt->protocols, NULL)) {
+ av_log(s, AV_LOG_ERROR, "Unable to open RTSP for listening\n");
+ return ret;
+ }
+ rt->state = RTSP_STATE_IDLE;
+ rt->rtsp_hd_out = rt->rtsp_hd;
+ for (;;) { /* Wait for incoming RTSP messages */
+ ret = read_line(s, rbuf, sizeof(rbuf), &rbuflen);
+ if (ret < 0)
+ return ret;
+ ret = parse_command_line(s, rbuf, rbuflen, uri, sizeof(uri), method,
+ sizeof(method), &methodcode);
+ if (ret) {
+ av_log(s, AV_LOG_ERROR, "RTSP: Unexpected Command\n");
+ return ret;
+ }
+
+ if (methodcode == ANNOUNCE) {
+ ret = rtsp_read_announce(s);
+ rt->state = RTSP_STATE_PAUSED;
+ } else if (methodcode == OPTIONS) {
+ ret = rtsp_read_options(s);
+ } else if (methodcode == RECORD) {
+ ret = rtsp_read_record(s);
+ if (!ret)
+ return 0; // We are ready for streaming
+ } else if (methodcode == SETUP)
+ ret = rtsp_read_setup(s, host, uri);
+ if (ret) {
+ ffurl_close(rt->rtsp_hd);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ return 0;
+}
+
static int rtsp_probe(AVProbeData *p)
{
- if (av_strstart(p->filename, "rtsp:", NULL))
+ if (
+#if CONFIG_TLS_PROTOCOL
+ av_strstart(p->filename, "rtsps:", NULL) ||
+#endif
+ av_strstart(p->filename, "rtsp:", NULL))
return AVPROBE_SCORE_MAX;
return 0;
}
-static int rtsp_read_header(AVFormatContext *s,
- AVFormatParameters *ap)
+static int rtsp_read_header(AVFormatContext *s)
{
RTSPState *rt = s->priv_data;
int ret;
- ret = ff_rtsp_connect(s);
- if (ret)
- return ret;
-
- rt->real_setup_cache = av_mallocz(2 * s->nb_streams * sizeof(*rt->real_setup_cache));
- if (!rt->real_setup_cache)
- return AVERROR(ENOMEM);
- rt->real_setup = rt->real_setup_cache + s->nb_streams;
+ if (rt->initial_timeout > 0)
+ rt->rtsp_flags |= RTSP_FLAG_LISTEN;
- if (ap->initial_pause) {
- /* do not start immediately */
+ if (rt->rtsp_flags & RTSP_FLAG_LISTEN) {
+ ret = rtsp_listen(s);
+ if (ret)
+ return ret;
} else {
- if (rtsp_read_play(s) < 0) {
- ff_rtsp_close_streams(s);
- ff_rtsp_close_connections(s);
- return AVERROR_INVALIDDATA;
+ ret = ff_rtsp_connect(s);
+ if (ret)
+ return ret;
+
+ rt->real_setup_cache = !s->nb_streams ? NULL :
+ av_mallocz(2 * s->nb_streams * sizeof(*rt->real_setup_cache));
+ if (!rt->real_setup_cache && s->nb_streams)
+ return AVERROR(ENOMEM);
+ rt->real_setup = rt->real_setup_cache + s->nb_streams;
+
+ if (rt->initial_pause) {
+ /* do not start immediately */
+ } else {
+ if (rtsp_read_play(s) < 0) {
+ ff_rtsp_close_streams(s);
+ ff_rtsp_close_connections(s);
+ return AVERROR_INVALIDDATA;
+ }
}
}
int id, len, i, ret;
RTSPStream *rtsp_st;
-#ifdef DEBUG_RTP_TCP
- av_dlog(s, "tcp_read_packet:\n");
-#endif
+ av_log(s, AV_LOG_TRACE, "tcp_read_packet:\n");
redo:
for (;;) {
RTSPMessageHeader reply;
if (rt->state != RTSP_STATE_STREAMING)
return 0;
}
- ret = url_read_complete(rt->rtsp_hd, buf, 3);
+ ret = ffurl_read_complete(rt->rtsp_hd, buf, 3);
if (ret != 3)
return -1;
id = buf[0];
len = AV_RB16(buf + 1);
-#ifdef DEBUG_RTP_TCP
- av_dlog(s, "id=%d len=%d\n", id, len);
-#endif
+ av_log(s, AV_LOG_TRACE, "id=%d len=%d\n", id, len);
if (len > buf_size || len < 12)
goto redo;
/* get the data */
- ret = url_read_complete(rt->rtsp_hd, buf, len);
+ ret = ffurl_read_complete(rt->rtsp_hd, buf, len);
if (ret != len)
return -1;
if (rt->transport == RTSP_TRANSPORT_RDT &&
av_url_split(NULL, 0, NULL, 0, host, sizeof(host), &port, NULL, 0,
s->filename);
- ff_rtsp_undo_setup(s);
+ ff_rtsp_undo_setup(s, 0);
return ff_rtsp_make_setup_request(s, host, port, RTSP_LOWER_TRANSPORT_TCP,
rt->real_challenge);
}
}
rt->packets++;
- /* send dummy request to keep TCP connection alive */
- if ((av_gettime() - rt->last_cmd_time) / 1000000 >= rt->timeout / 2) {
- if (rt->server_type != RTSP_SERVER_REAL) {
- ff_rtsp_send_cmd_async(s, "GET_PARAMETER", rt->control_uri, NULL);
- } else {
- ff_rtsp_send_cmd_async(s, "OPTIONS", "*", NULL);
+ if (!(rt->rtsp_flags & RTSP_FLAG_LISTEN)) {
+ /* send dummy request to keep TCP connection alive */
+ if ((av_gettime_relative() - rt->last_cmd_time) / 1000000 >= rt->timeout / 2 ||
+ rt->auth_state.stale) {
+ if (rt->server_type == RTSP_SERVER_WMS ||
+ (rt->server_type != RTSP_SERVER_REAL &&
+ rt->get_parameter_supported)) {
+ ff_rtsp_send_cmd_async(s, "GET_PARAMETER", rt->control_uri, NULL);
+ } else {
+ ff_rtsp_send_cmd_async(s, "OPTIONS", rt->control_uri, NULL);
+ }
+ /* The stale flag should be reset when creating the auth response in
+ * ff_rtsp_send_cmd_async, but reset it here just in case we never
+ * called the auth code (if we didn't have any credentials set). */
+ rt->auth_state.stale = 0;
}
}
return 0;
}
-static int rtsp_read_close(AVFormatContext *s)
-{
- RTSPState *rt = s->priv_data;
-
-#if 0
- /* NOTE: it is valid to flush the buffer here */
- if (rt->lower_transport == RTSP_LOWER_TRANSPORT_TCP) {
- avio_close(&rt->rtsp_gb);
- }
-#endif
- ff_rtsp_send_cmd_async(s, "TEARDOWN", rt->control_uri, NULL);
-
- ff_rtsp_close_streams(s);
- ff_rtsp_close_connections(s);
- ff_network_close();
- rt->real_setup = NULL;
- av_freep(&rt->real_setup_cache);
- return 0;
-}
+static const AVClass rtsp_demuxer_class = {
+ .class_name = "RTSP demuxer",
+ .item_name = av_default_item_name,
+ .option = ff_rtsp_options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
AVInputFormat ff_rtsp_demuxer = {
- "rtsp",
- NULL_IF_CONFIG_SMALL("RTSP input format"),
- sizeof(RTSPState),
- rtsp_probe,
- rtsp_read_header,
- rtsp_read_packet,
- rtsp_read_close,
- rtsp_read_seek,
- .flags = AVFMT_NOFILE,
- .read_play = rtsp_read_play,
- .read_pause = rtsp_read_pause,
+ .name = "rtsp",
+ .long_name = NULL_IF_CONFIG_SMALL("RTSP input"),
+ .priv_data_size = sizeof(RTSPState),
+ .read_probe = rtsp_probe,
+ .read_header = rtsp_read_header,
+ .read_packet = rtsp_read_packet,
+ .read_close = rtsp_read_close,
+ .read_seek = rtsp_read_seek,
+ .flags = AVFMT_NOFILE,
+ .read_play = rtsp_read_play,
+ .read_pause = rtsp_read_pause,
+ .priv_class = &rtsp_demuxer_class,
};
projects / ffmpeg / blobdiff