static gboolean
copy_session_attributes (SdpMessageContext * ctx, const GstSDPMessage * msg,
GError ** error)
{
const GstSDPOrigin *o1;
const gchar *s;
o1 = gst_sdp_message_get_origin (msg);
if (gst_sdp_message_set_origin (ctx->msg, o1->username, o1->sess_id,
o1->sess_version, o1->nettype, o1->addrtype,
o1->addr) != GST_SDP_OK) {
g_set_error_literal (error, KMS_SDP_AGENT_ERROR,
SDP_AGENT_INVALID_PARAMETER, "Can not set origin");
return FALSE;
}
s = gst_sdp_message_get_session_name (msg);
if (gst_sdp_message_set_session_name (ctx->msg, s) != GST_SDP_OK) {
g_set_error_literal (error, KMS_SDP_AGENT_ERROR,
SDP_AGENT_INVALID_PARAMETER, "Can not set session name");
return FALSE;
}
if (!sdp_utils_intersect_session_attributes (msg, intersect_session_attr,
ctx)) {
g_set_error_literal (error, KMS_SDP_AGENT_ERROR,
SDP_AGENT_INVALID_PARAMETER, "Can not interset session attributes");
return FALSE;
}
return TRUE;
}
static gboolean
kms_sdp_message_context_set_default_session_attributes (GstSDPMessage * msg,
SdpIPv ipv, const gchar * addr, GError ** error)
{
const gchar *addrtype, *err_attr;
gchar *ntp;
addrtype = get_attr_addr_type (ipv);
if (addrtype == NULL) {
err_attr = "ip version";
goto error;
}
if (gst_sdp_message_set_version (msg, "0") != GST_SDP_OK) {
err_attr = "version";
goto error;
}
/* The method of generating <sess-id> and <sess-version> is up to the */
/* creating tool, but it has been suggested that a Network Time Protocol */
/* (NTP) format timestamp be used to ensure uniqueness [rfc4566] 5.2 */
ntp = g_strdup_printf ("%" G_GUINT64_FORMAT, get_ntp_time ());
if (gst_sdp_message_set_origin (msg, "-", ntp, ntp, ORIGIN_ATTR_NETTYPE,
addrtype, addr) != GST_SDP_OK) {
err_attr = "origin";
g_free (ntp);
goto error;
}
g_free (ntp);
if (gst_sdp_message_set_session_name (msg,
"Kurento Media Server") != GST_SDP_OK) {
err_attr = "session";
goto error;
}
if (gst_sdp_message_set_connection (msg, ORIGIN_ATTR_NETTYPE, addrtype,
addr, 0, 0) != GST_SDP_OK) {
err_attr = "connection";
goto error;
}
return TRUE;
error:
g_set_error (error, KMS_SDP_AGENT_ERROR, SDP_AGENT_INVALID_PARAMETER,
"Can not set attr: %s", err_attr);
return FALSE;
}
SDPDescription::SDPDescription(const std::string& ip_addr) : ip_addr_(ip_addr) {
gst_sdp_message_new(&sdp_description_);
/* some standard things first */
gst_sdp_message_set_version(sdp_description_, "0");
// FIXME check and chose between IP4 and IP6, IP4 hardcoded
// FIXME generate proper session id &version
gst_sdp_message_set_origin(sdp_description_,
"-", // the user name
"1188340656180883", // a session id
"1", // a session version
"IN", // a network type
"IP4", // an address type
ip_addr.c_str()); // an address
gst_sdp_message_set_session_name(sdp_description_, "switcher");
gst_sdp_message_set_information(sdp_description_, "telepresence");
gst_sdp_message_add_time(sdp_description_, "0", "0", nullptr);
gst_sdp_message_add_attribute(sdp_description_, "tool", "switcher");
gst_sdp_message_add_attribute(sdp_description_, "type", "broadcast");
gst_sdp_message_add_attribute(sdp_description_, "control", "*");
}
static gint create_and_send_ANNOUNCE_message2(GstRTSPsink* sink, GTimeVal *timeout, char **szSessionNumber) {
const gchar *url_client_ip_str = "0.0.0.0";//"192.168.2.104";
const gchar *url_server_str_full = g_strdup_printf("rtsp://%s:%d/%s", sink->host, sink->port, sink->stream_name); //"rtsp://192.168.2.108:1935/live/1";
//conn = sink->conn;
GstRTSPMessage msg = { 0 };
GstSDPMessage *sdp;
GstRTSPMethod method;
GstRTSPResult res;
guint num_ports = 1;
guint rtp_port = 5006;
char *szPayloadType = g_strdup_printf("%d", sink->payload);
method = GST_RTSP_ANNOUNCE ;
res = gst_rtsp_message_init_request(&msg, method, url_server_str_full);
if (res < 0)
return res;
/* set user-agent */
if (sink->user_agent)
gst_rtsp_message_add_header(&msg, GST_RTSP_HDR_USER_AGENT, sink->user_agent);
gst_rtsp_message_add_header(&msg, GST_RTSP_HDR_CONTENT_TYPE, "application/sdp");
// allocate sdp messege buffer...
res = gst_sdp_message_new(&sdp);
//v=..
res = gst_sdp_message_set_version(sdp, "0");
//o=...
res = gst_sdp_message_set_origin(sdp, "-", "0", "0", "IN", "IP4", "0.0.0.0");
//s=..
if (sink->session_name)
res = gst_sdp_message_set_session_name(sdp, "Unnamed");
//i=..
if (sink->information)
res = gst_sdp_message_set_information(sdp, "N/A");
//c=...
res = gst_sdp_message_set_connection(sdp, "IN", "IP4", url_client_ip_str, 0, 0);
//a=...
res = gst_sdp_message_add_attribute(sdp, "recvonly", NULL);
// create media
GstSDPMedia *media;
res = gst_sdp_media_new(&media);
res = gst_sdp_media_init(media);
//m=...
res = gst_sdp_media_set_media(media, "video");
res = gst_sdp_media_set_port_info(media, rtp_port, num_ports);
res = gst_sdp_media_set_proto(media, "RTP/AVP");
res = gst_sdp_media_add_format(media, szPayloadType);
//a=...
char *rtpmap = g_strdup_printf("%s %s/%d", szPayloadType, sink->encoding_name, sink->clock_rate);
res = gst_sdp_media_add_attribute(media, "rtpmap", rtpmap);
res = gst_sdp_media_add_attribute(media, "fmtp", szPayloadType);
res = gst_sdp_media_add_attribute(media, "control", "streamid=0");
// insert media into sdp
res = gst_sdp_message_add_media(sdp, media);
gchar * sdp_str = gst_sdp_message_as_text(sdp);
int size = g_utf8_strlen(sdp_str, 500);
gst_sdp_message_free(sdp);
gst_sdp_media_free(media);
res = gst_rtsp_message_set_body(&msg, sdp_str, size);
sink->responce = &msg;
// Send our packet receive server answer and check some basic checks.
if ((res = sendReceiveAndCheck(sink->conn, timeout, &msg, sink->debug)) != GST_RTSP_OK) {
return res;
}
// get session number
*szSessionNumber = extractSessionNumberFromMessage(&msg);
return GST_RTSP_OK;
}
