| /********** |
| This library is free software; you can redistribute it and/or modify it under |
| the terms of the GNU Lesser General Public License as published by the |
| Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.) |
| |
| This library is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for |
| more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with this library; if not, write to the Free Software Foundation, Inc., |
| 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| **********/ |
| // Copyright (c) 1996-2015, Live Networks, Inc. All rights reserved |
| // A test program that reads a DV Video Elementary Stream file, |
| // and streams it using RTP |
| // main program |
| |
| #include "liveMedia.hh" |
| #include "BasicUsageEnvironment.hh" |
| #include "GroupsockHelper.hh" |
| |
| UsageEnvironment* env; |
| char const* inputFileName = "test.dv"; |
| DVVideoStreamFramer* videoSource; |
| RTPSink* videoSink; |
| |
| void play(); // forward |
| |
| int main(int argc, char** argv) { |
| // Begin by setting up our usage environment: |
| TaskScheduler* scheduler = BasicTaskScheduler::createNew(); |
| env = BasicUsageEnvironment::createNew(*scheduler); |
| |
| // Create 'groupsocks' for RTP and RTCP: |
| struct in_addr destinationAddress; |
| destinationAddress.s_addr = chooseRandomIPv4SSMAddress(*env); |
| // Note: This is a multicast address. If you wish instead to stream |
| // using unicast, then you should use the "testOnDemandRTSPServer" |
| // test program - not this test program - as a model. |
| |
| const unsigned short rtpPortNum = 18888; |
| const unsigned short rtcpPortNum = rtpPortNum+1; |
| const unsigned char ttl = 255; |
| |
| const Port rtpPort(rtpPortNum); |
| const Port rtcpPort(rtcpPortNum); |
| |
| Groupsock rtpGroupsock(*env, destinationAddress, rtpPort, ttl); |
| rtpGroupsock.multicastSendOnly(); // we're a SSM source |
| Groupsock rtcpGroupsock(*env, destinationAddress, rtcpPort, ttl); |
| rtcpGroupsock.multicastSendOnly(); // we're a SSM source |
| |
| // Create a 'DV Video RTP' sink from the RTP 'groupsock': |
| // (But first, make sure that its buffers will be large enough to handle the huge size of DV frames (as big as 288000).) |
| OutPacketBuffer::maxSize = 300000; |
| videoSink = DVVideoRTPSink::createNew(*env, &rtpGroupsock, 96); |
| |
| // Create (and start) a 'RTCP instance' for this RTP sink: |
| const unsigned estimatedSessionBandwidth = 50000; // in kbps; for RTCP b/w share |
| const unsigned maxCNAMElen = 100; |
| unsigned char CNAME[maxCNAMElen+1]; |
| gethostname((char*)CNAME, maxCNAMElen); |
| CNAME[maxCNAMElen] = '\0'; // just in case |
| RTCPInstance* rtcp |
| = RTCPInstance::createNew(*env, &rtcpGroupsock, |
| estimatedSessionBandwidth, CNAME, |
| videoSink, NULL /* we're a server */, |
| True /* we're a SSM source */); |
| // Note: This starts RTCP running automatically |
| |
| RTSPServer* rtspServer = RTSPServer::createNew(*env, 8554); |
| if (rtspServer == NULL) { |
| *env << "Failed to create RTSP server: " << env->getResultMsg() << "\n"; |
| exit(1); |
| } |
| ServerMediaSession* sms |
| = ServerMediaSession::createNew(*env, "testStream", inputFileName, |
| "Session streamed by \"testDVVideoStreamer\"", |
| True /*SSM*/); |
| sms->addSubsession(PassiveServerMediaSubsession::createNew(*videoSink, rtcp)); |
| rtspServer->addServerMediaSession(sms); |
| |
| char* url = rtspServer->rtspURL(sms); |
| *env << "Play this stream using the URL \"" << url << "\"\n"; |
| delete[] url; |
| |
| // Start the streaming: |
| *env << "Beginning streaming...\n"; |
| play(); |
| |
| env->taskScheduler().doEventLoop(); // does not return |
| |
| return 0; // only to prevent compiler warning |
| } |
| |
| void afterPlaying(void* /*clientData*/) { |
| *env << "...done reading from file\n"; |
| |
| videoSink->stopPlaying(); |
| Medium::close(videoSource); |
| // Note that this also closes the input file that this source read from. |
| |
| // Start playing once again: |
| play(); |
| } |
| |
| void play() { |
| // Open the input file as a 'byte-stream file source': |
| ByteStreamFileSource* fileSource |
| = ByteStreamFileSource::createNew(*env, inputFileName); |
| if (fileSource == NULL) { |
| *env << "Unable to open file \"" << inputFileName |
| << "\" as a byte-stream file source\n"; |
| exit(1); |
| } |
| |
| FramedSource* videoES = fileSource; |
| |
| // Create a framer for the Video Elementary Stream: |
| videoSource = DVVideoStreamFramer::createNew(*env, videoES); |
| |
| // Finally, start playing: |
| *env << "Beginning to read from file...\n"; |
| videoSink->startPlaying(*videoSource, afterPlaying, videoSink); |
| } |