live555 实现一个最简单的RTSP服务器

来源：互联网发布：linux云计算就业前景编辑：程序博客网时间：2024/05/18 00:28

用live555中的库写了一个最简单的RTSPServer程序，仅用于学习目的。从下例的代码中，可以清析的明白RTSPServer的函数调用流程。

#include <BasicUsageEnvironment.hh>  #include "liveMedia.hh"      static ServerMediaSession* createNewSMS(UsageEnvironment& env, char const* fileName);      int main()  {      TaskScheduler* scheduler;      UsageEnvironment* env ;      RTSPServer* rtspServer;      ServerMediaSession* sms;      //创建任务调用器      scheduler = BasicTaskScheduler::createNew();          //创建交互环境      env = BasicUsageEnvironment::createNew(*scheduler);          //创建RTSP服务器      rtspServer = RTSPServer::createNew(*env,554);    //使用554端口      if(rtspServer == NULL)      {          rtspServer = RTSPServer::createNew(*env,8554);   //554端口被占用，就使用8554端口      }          //打印服务器地址      *env << "Play streams from this server using the URL\n\t"           << rtspServer->rtspURLPrefix() << "<filename>.\n";          //创建session      sms = createNewSMS(*env, "test.mpg");      rtspServer->addServerMediaSession(sms);          //添加其它文件对应的session...          //进行事件循环      env->taskScheduler().doEventLoop(); // does not return          return 0;  }      static ServerMediaSession* createNewSMS(UsageEnvironment& env, char const* fileName)  {      char const* extension = strrchr(fileName, '.');      ServerMediaSession* sms = NULL;      Boolean reuseSource = False;    //不重用source          sms = ServerMediaSession::createNew(env, fileName);  //创建一个session          //      //在session中添加subssesion      //      if(strcmp(extension, ".aac") == 0)      {          sms->addSubsession(ADTSAudioFileServerMediaSubsession::createNew(env, fileName, reuseSource));      }      else if(strcmp(extension, ".264") == 0)      {          sms->addSubsession(H264VideoFileServerMediaSubsession::createNew(env, fileName, reuseSource));      }      else if(strcmp(extension, ".mpg") == 0)      {          MPEG1or2FileServerDemux* demux            = MPEG1or2FileServerDemux::createNew(env, fileName, reuseSource);          sms->addSubsession(demux->newVideoServerMediaSubsession());          sms->addSubsession(demux->newAudioServerMediaSubsession());      }          //添加其它媒体格式支持...          return sms;  }