112 lines
3.7 KiB
C++
112 lines
3.7 KiB
C++
//
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// ZoneMinder RTP Data Class Implementation, $Date: 2006-01-17 10:56:30 +0000 (Tue, 17 Jan 2006) $, $Revision: 1829 $
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// Copyright (C) 2003-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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#include "zm_rtp_data.h"
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#include "zm_rtsp.h"
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#include <arpa/inet.h>
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RtpDataThread::RtpDataThread( RtspThread &rtspThread, RtpSource &rtpSource ) : mRtspThread( rtspThread ), mRtpSource( rtpSource ), mStop( false )
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{
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}
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bool RtpDataThread::recvPacket( const unsigned char *packet, size_t packetLen )
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{
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const RtpDataHeader *rtpHeader;
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rtpHeader = (RtpDataHeader *)packet;
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//printf( "D: " );
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//for ( int i = 0; i < 32; i++ )
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//printf( "%02x ", (unsigned char)packet[i] );
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//printf( "\n" );
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Debug( 5, "Ver: %d", rtpHeader->version );
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Debug( 5, "P: %d", rtpHeader->p );
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Debug( 5, "Pt: %d", rtpHeader->pt );
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Debug( 5, "Mk: %d", rtpHeader->m );
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Debug( 5, "Seq: %d", ntohs(rtpHeader->seqN) );
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Debug( 5, "T/S: %x", ntohl(rtpHeader->timestampN) );
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Debug( 5, "SSRC: %x", ntohl(rtpHeader->ssrcN) );
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//unsigned short seq = ntohs(rtpHeader->seqN);
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unsigned long ssrc = ntohl(rtpHeader->ssrcN);
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if ( mRtpSource.getSsrc() && (ssrc != mRtpSource.getSsrc()) )
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{
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Warning( "Discarding packet for unrecognised ssrc %lx", ssrc );
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return( false );
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}
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return( mRtpSource.handlePacket( packet, packetLen ) );
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}
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int RtpDataThread::run()
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{
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Debug( 2, "Starting data thread %ld on port %d", mRtpSource.getSsrc(), mRtpSource.getLocalDataPort() );
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SockAddrInet localAddr;
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UdpInetServer rtpDataSocket;
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if ( mRtpSource.getLocalHost() != "" )
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localAddr.resolve( mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalDataPort(), "udp" );
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else
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localAddr.resolve( mRtpSource.getLocalDataPort(), "udp" );
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if ( !rtpDataSocket.bind( localAddr ) )
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Fatal( "Failed to bind RTP server" );
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Debug( 3, "Bound to %s:%d", mRtpSource.getLocalHost().c_str(), mRtpSource.getLocalDataPort() );
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Select select( 3 );
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select.addReader( &rtpDataSocket );
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unsigned char buffer[BUFSIZ];
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while ( !mStop && select.wait() >= 0 )
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{
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Select::CommsList readable = select.getReadable();
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if ( readable.size() == 0 )
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{
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Error( "RTP timed out" );
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break;
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}
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for ( Select::CommsList::iterator iter = readable.begin(); iter != readable.end(); iter++ )
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{
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if ( UdpInetServer *socket = dynamic_cast<UdpInetServer *>(*iter) )
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{
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int nBytes = socket->recv( buffer, sizeof(buffer) );
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Debug( 4, "Got %d bytes on sd %d", nBytes, socket->getReadDesc() );
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if ( nBytes )
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{
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recvPacket( buffer, nBytes );
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}
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else
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{
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mStop = true;
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break;
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}
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}
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else
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{
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Fatal( "Barfed" );
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}
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}
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}
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rtpDataSocket.close();
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mRtspThread.stop();
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return( 0 );
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}
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