[live555]基于Live555类库实现网络直播源代码
[live555]基于Live555类库实现网络直播源代码
Live555主要有四个类库:
libUsageEnvironment.lib;libliveMedia.lib;libgroupsock.lib;libBasicUsageEnvironment.lib
将这四个类库以及相关的头文件导入VC++2010之后,可以轻松实现网络直播系统。
在这里直接贴上完整代码,粘贴到VC里面就可以运行。
注:程序运行后,使用播放器软件(VLC Media Player,FFplay等),打开URL:rtp://239.255.42.42:1234,即可收看直播的视频。
- // 网络直播系统.cpp : 定义控制台应用程序的入口点。
- // 雷霄骅
- // 中国传媒大学/数字电视技术
- // leixiaohua1020@126.com
- #include "stdafx.h"
- #include "liveMedia.hh"
- #include "BasicUsageEnvironment.hh"
- #include "GroupsockHelper.hh"
- //#define IMPLEMENT_RTSP_SERVER
- //#define USE_SSM 1
- #ifdef USE_SSM
- Boolean const isSSM = True;
- #else
- Boolean const isSSM = False;
- #endif
- #define TRANSPORT_PACKET_SIZE 188
- #define TRANSPORT_PACKETS_PER_NETWORK_PACKET 7
- UsageEnvironment* env;
- char const* inputFileName = "test.ts";
- FramedSource* videoSource;
- RTPSink* videoSink;
- void play(); // forward
- int main(int argc, char** argv) {
- // 首先建立使用环境:
- TaskScheduler* scheduler = BasicTaskScheduler::createNew();
- env = BasicUsageEnvironment::createNew(*scheduler);
- // 创建 'groupsocks' for RTP and RTCP:
- char const* destinationAddressStr
- #ifdef USE_SSM
- = "232.255.42.42";
- #else
- = "239.255.42.42";
- // Note: 这是一个多播地址。如果你希望流使用单播地址,然后替换这个字符串与单播地址
- #endif
- const unsigned short rtpPortNum = 1234;
- const unsigned short rtcpPortNum = rtpPortNum+1;
- const unsigned char ttl = 7; //
- struct in_addr destinationAddress;
- destinationAddress.s_addr = our_inet_addr(destinationAddressStr);
- const Port rtpPort(rtpPortNum);
- const Port rtcpPort(rtcpPortNum);
- Groupsock rtpGroupsock(*env, destinationAddress, rtpPort, ttl);
- Groupsock rtcpGroupsock(*env, destinationAddress, rtcpPort, ttl);
- #ifdef USE_SSM
- rtpGroupsock.multicastSendOnly();
- rtcpGroupsock.multicastSendOnly();
- #endif
- // 创建一个适当的“RTPSink”:
- videoSink =
- SimpleRTPSink::createNew(*env, &rtpGroupsock, 33, 90000, "video", "mp2t",
- 1, True, False /*no 'M' bit*/);
- const unsigned estimatedSessionBandwidth = 5000; // in kbps; for RTCP b/w share
- const unsigned maxCNAMElen = 100;
- unsigned char CNAME[maxCNAMElen+1];
- gethostname((char*)CNAME, maxCNAMElen);
- CNAME[maxCNAMElen] = '\0';
- #ifdef IMPLEMENT_RTSP_SERVER
- RTCPInstance* rtcp =
- #endif
- RTCPInstance::createNew(*env, &rtcpGroupsock,
- estimatedSessionBandwidth, CNAME,
- videoSink, NULL /* we're a server */, isSSM);
- // 开始自动运行的媒体
- #ifdef IMPLEMENT_RTSP_SERVER
- RTSPServer* rtspServer = RTSPServer::createNew(*env);
- if (rtspServer == NULL) {
- *env << "Failed to create RTSP server: " << env->getResultMsg() << "\n";
- exit(1);
- }
- ServerMediaSession* sms
- = ServerMediaSession::createNew(*env, "testStream", inputFileName,
- "Session streamed by \"testMPEG2TransportStreamer\"",
- isSSM);
- 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;
- #endif
- *env << "开始发送流媒体...\n";
- play();
- env->taskScheduler().doEventLoop();
- return 0; // 只是为了防止编译器警告
- }
- void afterPlaying(void* /*clientData*/) {
- *env << "...从文件中读取完毕\n";
- Medium::close(videoSource);
- // 将关闭从源读取的输入文件
- play();
- }
- void play() {
- unsigned const inputDataChunkSize
- = TRANSPORT_PACKETS_PER_NETWORK_PACKET*TRANSPORT_PACKET_SIZE;
- // 打开输入文件作为一个“ByteStreamFileSource":
- ByteStreamFileSource* fileSource
- = ByteStreamFileSource::createNew(*env, inputFileName, inputDataChunkSize);
- if (fileSource == NULL) {
- *env << "无法打开文件 \"" << inputFileName
- << "\" 作为 file source\n";
- exit(1);
- }
- videoSource = MPEG2TransportStreamFramer::createNew(*env, fileSource);
- *env << "Beginning to read from file...\n";
- videoSink->startPlaying(*videoSource, afterPlaying, videoSink);
- }
完整工程下载地址:http://download.csdn.net/detail/leixiaohua1020/6272839
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