[asterisk-commits] file: branch 1.4 r48461 - /branches/1.4/main/rtp.c

[asterisk-commits at lists.digium.com]

Author: file
Date: Wed Dec 13 21:33:30 2006
New Revision: 48461

URL: http://svn.digium.com/view/asterisk?view=rev&rev=48461
Log:
Remove direct RTCP bridging. I've come to the conclusion that we should handle this through the core and not just forward it on. Should solve a few bugs.

Modified:
    branches/1.4/main/rtp.c

Modified: branches/1.4/main/rtp.c
URL: http://svn.digium.com/view/asterisk/branches/1.4/main/rtp.c?view=diff&rev=48461&r1=48460&r2=48461
==============================================================================
--- branches/1.4/main/rtp.c (original)
+++ branches/1.4/main/rtp.c Wed Dec 13 21:33:30 2006
@@ -177,7 +177,6 @@
 static unsigned int ast_rtcp_calc_interval(struct ast_rtp *rtp);
 static int ast_rtp_senddigit_continuation(struct ast_rtp *rtp);
 int ast_rtp_senddigit_end(struct ast_rtp *rtp, char digit);
-static int bridge_p2p_rtcp_write(struct ast_rtp *rtp, unsigned int *rtcpheader, int len);
 
 #define FLAG_3389_WARNING		(1 << 0)
 #define FLAG_NAT_ACTIVE			(3 << 1)
@@ -857,10 +856,6 @@
 				ast_log(LOG_DEBUG, "RTCP NAT: Got RTCP from other end. Now sending to address %s:%d\n", ast_inet_ntoa(rtp->rtcp->them.sin_addr), ntohs(rtp->rtcp->them.sin_port));
 		}
 	}
-
-	/* If we are P2P bridged to another RTP stream, send it directly over */
-	if (ast_rtp_get_bridged(rtp) && !bridge_p2p_rtcp_write(rtp, rtcpheader, res))
-		return &ast_null_frame;
 
 	if (option_debug)
 		ast_log(LOG_DEBUG, "Got RTCP report of %d bytes\n", res);
@@ -1015,29 +1010,6 @@
 		rtp->rtcp->minrxjitter = rtp->rxjitter;
 }
 
-/*! \brief Perform a Packet2Packet RTCP write */
-static int bridge_p2p_rtcp_write(struct ast_rtp *rtp, unsigned int *rtcpheader, int len)
-{
-	struct ast_rtp *bridged = ast_rtp_get_bridged(rtp);
-	int res = 0;
-
-	/* If RTCP is not present on the bridged RTP session, then ignore this */
-	if (!bridged->rtcp)
-		return 0;
-
-	/* Send the data out */
-	res = sendto(bridged->rtcp->s, (void *)rtcpheader, len, 0, (struct sockaddr *)&bridged->rtcp->them, sizeof(bridged->rtcp->them));
-	if (res < 0) {
-		if (!bridged->nat || (bridged->nat && (ast_test_flag(bridged, FLAG_NAT_ACTIVE) == FLAG_NAT_ACTIVE)))
-			ast_log(LOG_DEBUG, "RTCP Transmission error of packet to %s:%d: %s\n", ast_inet_ntoa(bridged->rtcp->them.sin_addr), ntohs(bridged->rtcp->them.sin_port), strerror(errno));
-		else if ((((ast_test_flag(bridged, FLAG_NAT_ACTIVE) == FLAG_NAT_INACTIVE) || rtpdebug)) && (option_debug || rtpdebug))
-			ast_log(LOG_DEBUG, "RTCP NAT: Can't write RTCP to private address %s:%d, waiting for other end to send first...\n", ast_inet_ntoa(bridged->rtcp->them.sin_addr), ntohs(bridged->rtcp->them.sin_port));
-	} else if (rtp_debug_test_addr(&bridged->rtcp->them))
-		ast_verbose("Sent RTCP P2P packet to %s:%d (len %-6.6u)\n", ast_inet_ntoa(bridged->rtcp->them.sin_addr), ntohs(bridged->rtcp->them.sin_port), len);
-
-	return 0;
-}
-
 /*! \brief Perform a Packet2Packet RTP write */
 static int bridge_p2p_rtp_write(struct ast_rtp *rtp, unsigned int *rtpheader, int len, int hdrlen)
 {
@@ -2876,39 +2848,6 @@
 	return 1;
 }
 
-/*! \brief P2P RTCP Callback */
-static int p2p_rtcp_callback(int *id, int fd, short events, void *cbdata)
-{
-	int res = 0;
-	struct sockaddr_in sin;
-	socklen_t len;
-	unsigned int *header;
-	struct ast_rtp *rtp = cbdata;
-	struct ast_rtcp *rtcp = NULL;
-
-	if (!rtp || !(rtcp = rtp->rtcp))
-		return 1;
-
-	len = sizeof(sin);
-	if ((res = recvfrom(fd, rtp->rawdata + AST_FRIENDLY_OFFSET, sizeof(rtp->rawdata) - AST_FRIENDLY_OFFSET, 0, (struct sockaddr *)&sin, &len)) < 0)
-		return 1;
-
-	header = (unsigned int *)(rtp->rawdata + AST_FRIENDLY_OFFSET);
-	
-	if ((rtp->nat) &&
-	    ((rtcp->them.sin_addr.s_addr != sin.sin_addr.s_addr) ||
-	     (rtcp->them.sin_port != sin.sin_port))) {
-		rtcp->them = sin;
-		if (option_debug || rtpdebug)
-			ast_log(LOG_DEBUG, "P2P RTCP NAT: Got RTCP from other end. Now sending to address %s:%d\n", ast_inet_ntoa(rtcp->them.sin_addr), ntohs(rtcp->them.sin_port));
-	}
-	
-	if (ast_rtp_get_bridged(rtp))
-		bridge_p2p_rtcp_write(rtp, header, res);
-	
-	return 1;
-}
-
 /*! \brief Helper function to switch a channel and RTP stream into callback mode */
 static int p2p_callback_enable(struct ast_channel *chan, struct ast_rtp *rtp, int *fds, int **iod)
 {
@@ -2924,14 +2863,10 @@
 
 	/* Steal the file descriptors from the channel and stash them away */
 	fds[0] = chan->fds[0];
-	fds[1] = chan->fds[1];
 	chan->fds[0] = -1;
-	chan->fds[1] = -1;
 
 	/* Now, fire up callback mode */
 	iod[0] = ast_io_add(rtp->io, fds[0], p2p_rtp_callback, AST_IO_IN, rtp);
-	if (fds[1] >= 0)
-		iod[1] = ast_io_add(rtp->io, fds[1], p2p_rtcp_callback, AST_IO_IN, rtp);
 
 	return 1;
 }
@@ -2944,17 +2879,13 @@
 	/* Remove the callback from the IO context */
 	ast_io_remove(rtp->io, iod[0]);
 
-	if (iod[1])
-		ast_io_remove(rtp->io, iod[1]);
-
 	/* Restore file descriptors */
 	chan->fds[0] = fds[0];
-	chan->fds[1] = fds[1];
 	ast_channel_unlock(chan);
 
 	/* Restore callback mode if previously used */
 	if (ast_test_flag(rtp, FLAG_CALLBACK_MODE))
-	    rtp->ioid = ast_io_add(rtp->io, rtp->s, rtpread, AST_IO_IN, rtp);
+		rtp->ioid = ast_io_add(rtp->io, rtp->s, rtpread, AST_IO_IN, rtp);
 
 	return 0;
 }