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stream: Select unicast address from pool if appropriate

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This commit is contained in:
Olivier Crête 2013-02-19 18:27:20 -05:00 committed by Wim Taymans
parent a797cbde06
commit 5a39e25949
1 changed files with 121 additions and 53 deletions
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174
gst/rtsp-server/rtsp-stream.c
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@ -62,6 +62,7 @@ struct _GstRTSPStreamPrivate
/* server ports for sending/receiving */ /* server ports for sending/receiving */
GstRTSPRange server_port; GstRTSPRange server_port;
GstRTSPAddress *server_addr;
/* multicast addresses */ /* multicast addresses */
GstRTSPAddressPool *pool; GstRTSPAddressPool *pool;
@ -136,6 +137,8 @@ gst_rtsp_stream_finalize (GObject * obj)
if (priv->addr) if (priv->addr)
gst_rtsp_address_free (priv->addr); gst_rtsp_address_free (priv->addr);
if (priv->server_addr)
gst_rtsp_address_free (priv->server_addr);
if (priv->pool) if (priv->pool)
g_object_unref (priv->pool); g_object_unref (priv->pool);
gst_object_unref (priv->payloader); gst_object_unref (priv->payloader);
@ -417,11 +420,17 @@ alloc_ports (GstRTSPStream * stream)
GstStateChangeReturn ret; GstStateChangeReturn ret;
GstElement *udpsrc0, *udpsrc1; GstElement *udpsrc0, *udpsrc1;
GstElement *udpsink0, *udpsink1; GstElement *udpsink0, *udpsink1;
GSocket *rtp_socket = NULL;
GSocket *rtcp_socket;
gint tmp_rtp, tmp_rtcp; gint tmp_rtp, tmp_rtcp;
guint count; guint count;
gint rtpport, rtcpport; gint rtpport, rtcpport;
GSocket *socket; GList *rejected_addresses = NULL;
const gchar *host; GstRTSPAddress *addr = NULL;
GSocketFamily family;
GInetAddress *inetaddr = NULL;
GSocketAddress *rtp_sockaddr = NULL;
GSocketAddress *rtcp_sockaddr = NULL;
udpsrc0 = NULL; udpsrc0 = NULL;
udpsrc1 = NULL; udpsrc1 = NULL;
@ -432,74 +441,117 @@ alloc_ports (GstRTSPStream * stream)
/* Start with random port */ /* Start with random port */
tmp_rtp = 0; tmp_rtp = 0;
if (priv->is_ipv6) if (priv->is_ipv6) {
host = "udp://[::0]"; family = G_SOCKET_FAMILY_IPV6;
else } else {
host = "udp://0.0.0.0"; family = G_SOCKET_FAMILY_IPV4;
}
rtcp_socket = g_socket_new (family, G_SOCKET_TYPE_DATAGRAM,
G_SOCKET_PROTOCOL_UDP, NULL);
if (!rtcp_socket)
goto no_udp_protocol;
if (priv->server_addr)
gst_rtsp_address_free (priv->server_addr);
/* try to allocate 2 UDP ports, the RTP port should be an even /* try to allocate 2 UDP ports, the RTP port should be an even
* number and the RTCP port should be the next (uneven) port */ * number and the RTCP port should be the next (uneven) port */
again: again:
udpsrc0 = gst_element_make_from_uri (GST_URI_SRC, host, NULL, NULL);
if (udpsrc0 == NULL)
goto no_udp_protocol;
g_object_set (G_OBJECT (udpsrc0), "port", tmp_rtp, NULL);
ret = gst_element_set_state (udpsrc0, GST_STATE_PAUSED); if (rtp_socket == NULL) {
if (ret == GST_STATE_CHANGE_FAILURE) { rtp_socket = g_socket_new (family, G_SOCKET_TYPE_DATAGRAM,
G_SOCKET_PROTOCOL_UDP, NULL);
if (!rtp_socket)
goto no_udp_protocol;
}
if (priv->pool && gst_rtsp_address_pool_has_unicast_addresses (priv->pool)) {
GstRTSPAddressFlags flags;
if (addr)
rejected_addresses = g_list_prepend (rejected_addresses, addr);
flags = GST_RTSP_ADDRESS_FLAG_EVEN_PORT | GST_RTSP_ADDRESS_FLAG_UNICAST;
if (priv->is_ipv6)
flags |= GST_RTSP_ADDRESS_FLAG_IPV6;
else
flags |= GST_RTSP_ADDRESS_FLAG_IPV4;
addr = gst_rtsp_address_pool_acquire_address (priv->pool, flags, 2);
if (addr == NULL)
goto no_ports;
tmp_rtp = addr->port;
g_clear_object (&inetaddr);
inetaddr = g_inet_address_new_from_string (addr->address);
} else {
if (tmp_rtp != 0) { if (tmp_rtp != 0) {
tmp_rtp += 2; tmp_rtp += 2;
if (++count > 20) if (++count > 20)
goto no_ports; goto no_ports;
gst_element_set_state (udpsrc0, GST_STATE_NULL);
gst_object_unref (udpsrc0);
goto again;
} }
goto no_udp_protocol;
if (inetaddr == NULL)
inetaddr = g_inet_address_new_any (family);
} }
g_object_get (G_OBJECT (udpsrc0), "port", &tmp_rtp, NULL); rtp_sockaddr = g_inet_socket_address_new (inetaddr, tmp_rtp);
if (!g_socket_bind (rtp_socket, rtp_sockaddr, FALSE, NULL)) {
g_object_unref (rtp_sockaddr);
goto again;
}
g_object_unref (rtp_sockaddr);
rtp_sockaddr = g_socket_get_local_address (rtp_socket, NULL);
if (rtp_sockaddr == NULL || !G_IS_INET_SOCKET_ADDRESS (rtp_sockaddr)) {
g_clear_object (&rtp_sockaddr);
goto socket_error;
}
tmp_rtp =
g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (rtp_sockaddr));
g_object_unref (rtp_sockaddr);
/* check if port is even */ /* check if port is even */
if ((tmp_rtp & 1) != 0) { if ((tmp_rtp & 1) != 0) {
/* port not even, close and allocate another */ /* port not even, close and allocate another */
if (++count > 20)
goto no_ports;
gst_element_set_state (udpsrc0, GST_STATE_NULL);
gst_object_unref (udpsrc0);
tmp_rtp++; tmp_rtp++;
g_clear_object (&rtp_socket);
goto again; goto again;
} }
/* allocate port+1 for RTCP now */
udpsrc1 = gst_element_make_from_uri (GST_URI_SRC, host, NULL, NULL);
if (udpsrc1 == NULL)
goto no_udp_rtcp_protocol;
/* set port */ /* set port */
tmp_rtcp = tmp_rtp + 1; tmp_rtcp = tmp_rtp + 1;
g_object_set (G_OBJECT (udpsrc1), "port", tmp_rtcp, NULL);
ret = gst_element_set_state (udpsrc1, GST_STATE_PAUSED); rtcp_sockaddr = g_inet_socket_address_new (inetaddr, tmp_rtcp);
/* tmp_rtcp port is busy already : retry to make rtp/rtcp pair */ if (!g_socket_bind (rtcp_socket, rtcp_sockaddr, FALSE, NULL)) {
if (ret == GST_STATE_CHANGE_FAILURE) { g_object_unref (rtcp_sockaddr);
g_clear_object (&rtp_socket);
if (++count > 20)
goto no_ports;
gst_element_set_state (udpsrc0, GST_STATE_NULL);
gst_object_unref (udpsrc0);
gst_element_set_state (udpsrc1, GST_STATE_NULL);
gst_object_unref (udpsrc1);
tmp_rtp += 2;
goto again; goto again;
} }
g_object_unref (rtcp_sockaddr);
g_clear_object (&inetaddr);
udpsrc0 = gst_element_factory_make ("udpsrc", NULL);
udpsrc1 = gst_element_factory_make ("udpsrc", NULL);
if (udpsrc0 == NULL || udpsrc1 == NULL)
goto no_udp_protocol;
g_object_set (G_OBJECT (udpsrc0), "socket", rtp_socket, NULL);
g_object_set (G_OBJECT (udpsrc1), "socket", rtcp_socket, NULL);
ret = gst_element_set_state (udpsrc0, GST_STATE_PAUSED);
if (ret == GST_STATE_CHANGE_FAILURE)
goto element_error;
ret = gst_element_set_state (udpsrc1, GST_STATE_PAUSED);
if (ret == GST_STATE_CHANGE_FAILURE)
goto element_error;
/* all fine, do port check */ /* all fine, do port check */
g_object_get (G_OBJECT (udpsrc0), "port", &rtpport, NULL); g_object_get (G_OBJECT (udpsrc0), "port", &rtpport, NULL);
g_object_get (G_OBJECT (udpsrc1), "port", &rtcpport, NULL); g_object_get (G_OBJECT (udpsrc1), "port", &rtcpport, NULL);
@ -512,10 +564,8 @@ again:
if (!udpsink0) if (!udpsink0)
goto no_udp_protocol; goto no_udp_protocol;
g_object_get (G_OBJECT (udpsrc0), "used-socket", &socket, NULL);
g_object_set (G_OBJECT (udpsink0), "socket", socket, NULL);
g_object_unref (socket);
g_object_set (G_OBJECT (udpsink0), "close-socket", FALSE, NULL); g_object_set (G_OBJECT (udpsink0), "close-socket", FALSE, NULL);
g_object_set (G_OBJECT (udpsink0), "socket", rtp_socket, NULL);
udpsink1 = gst_element_factory_make ("multiudpsink", NULL); udpsink1 = gst_element_factory_make ("multiudpsink", NULL);
if (!udpsink1) if (!udpsink1)
@ -525,10 +575,8 @@ again:
g_object_set (G_OBJECT (udpsink1), "send-duplicates", FALSE, NULL); g_object_set (G_OBJECT (udpsink1), "send-duplicates", FALSE, NULL);
g_object_set (G_OBJECT (udpsink0), "buffer-size", priv->buffer_size, NULL); g_object_set (G_OBJECT (udpsink0), "buffer-size", priv->buffer_size, NULL);
g_object_get (G_OBJECT (udpsrc1), "used-socket", &socket, NULL);
g_object_set (G_OBJECT (udpsink1), "socket", socket, NULL);
g_object_unref (socket);
g_object_set (G_OBJECT (udpsink1), "close-socket", FALSE, NULL); g_object_set (G_OBJECT (udpsink1), "close-socket", FALSE, NULL);
g_object_set (G_OBJECT (udpsink1), "socket", rtcp_socket, NULL);
g_object_set (G_OBJECT (udpsink1), "sync", FALSE, NULL); g_object_set (G_OBJECT (udpsink1), "sync", FALSE, NULL);
g_object_set (G_OBJECT (udpsink1), "async", FALSE, NULL); g_object_set (G_OBJECT (udpsink1), "async", FALSE, NULL);
g_object_set (G_OBJECT (udpsink0), "auto-multicast", FALSE, NULL); g_object_set (G_OBJECT (udpsink0), "auto-multicast", FALSE, NULL);
@ -545,6 +593,12 @@ again:
priv->server_port.min = rtpport; priv->server_port.min = rtpport;
priv->server_port.max = rtcpport; priv->server_port.max = rtcpport;
priv->server_addr = addr;
g_list_free_full (rejected_addresses, (GDestroyNotify) gst_rtsp_address_free);
g_object_unref (rtp_socket);
g_object_unref (rtcp_socket);
return TRUE; return TRUE;
/* ERRORS */ /* ERRORS */
@ -556,11 +610,15 @@ no_ports:
{ {
goto cleanup; goto cleanup;
} }
no_udp_rtcp_protocol: port_error:
{ {
goto cleanup; goto cleanup;
} }
port_error: socket_error:
{
goto cleanup;
}
element_error:
{ {
goto cleanup; goto cleanup;
} }
@ -582,6 +640,16 @@ cleanup:
gst_element_set_state (udpsink1, GST_STATE_NULL); gst_element_set_state (udpsink1, GST_STATE_NULL);
gst_object_unref (udpsink1); gst_object_unref (udpsink1);
} }
if (inetaddr)
g_object_unref (inetaddr);
g_list_free_full (rejected_addresses,
(GDestroyNotify) gst_rtsp_address_free);
if (addr)
gst_rtsp_address_free (addr);
if (rtp_socket)
g_object_unref (rtp_socket);
if (rtcp_socket)
g_object_unref (rtcp_socket);
return FALSE; return FALSE;
} }
} }