Linux基于Live555 获取rstp实时H264视频流并转发

Linux基于Live555获取rstp实时264视频流并转发

1、编译生成库

从官网上下载，下载地址：http://www.live555.com/liveMedia/public/，选择live555-latest.tar.gz下载

下载的为2017.10.28版 

解压：tar xzf live555-latest.tar.gz

修改权限: chmod+777 live -R

修改交叉编译工具 :cp config.armlinux  cpconfig.arm

vi config.arm

CROSS_COMPILE?=        arm-buildroot-linux-uclibcgnueabi-

生成Makefile:    ./genMakefiles arm

make

生成mediaServer/live555MediaServer

使用 H.264文件测试  ：live555MediaServer test.264

 

 

获取IP错误一直为127.0.1.1或0.0.0.0

而机器IP为 127.0.0.1 &  192.168.55.3

 内核不支持端口复用需要注释掉groupsock/GroupsockHelper.cppSO_REUSEPORT

 

参考：

Rtsp server 创建过程分析 

    https://www.cnblogs.com/dchipnau/p/5458943.html

windows 本地获取实例 

     http://blog.csdn.net/xiejiashu/article/details/8269873

2、添加获取实时帧类

创建会话

ServerMediaSession* DynamicRTSPServer::lookupServerMediaSession(char const* streamName, Boolean isFirstLookupInSession) {    // Next, check whether we already have a "ServerMediaSession" for this file:    ServerMediaSession* sms = RTSPServer::lookupServerMediaSession(streamName);    Boolean smsExists = sms != NULL;    if (sms == NULL) {    sms = createNewSMS(envir(), streamName, NULL);     addServerMediaSession(sms);    }  return sms;}#define NEW_SMS(description) do {\char const* descStr = description\    ", streamed by the LIVE555 Media Server";\sms = ServerMediaSession::createNew(env, fileName, fileName, descStr);\} while(0)static ServerMediaSession* createNewSMS(UsageEnvironment& env,char const* fileName, FILE* /*fid*/) {    printf("filename =%s\n",fileName);    if(fileName == NULL) return NULL;    // Use the file name extension to determine the type of "ServerMediaSession":    char const* h264 = strcasestr(fileName, "-stream");    ServerMediaSession* sms = NULL;    Boolean const reuseSource = True;    sms->addSubsession(H264LiveVideoServerMediaSubsession::createNew(env, fileName, reuseSource));    return sms;}

获取video

FramedSource* H264LiveVideoServerMediaSubsession::createNewStreamSource(unsigned /*clientSessionId*/, unsigned& estBitrate) {    estBitrate = 500; // kbps, estimate    // Create the video source:    H264LiveVideoSource* liveSource = H264LiveVideoSource::createNew(envir(), fChanID);    if (liveSource == NULL) return NULL;    // Create a framer for the Video Elementary Stream:  return H264VideoStreamFramer::createNew(envir(), liveSource);}RTPSink* H264LiveVideoServerMediaSubsession::createNewRTPSink(Groupsock* rtpGroupsock,unsigned char rtpPayloadTypeIfDynamic,FramedSource* /*inputSource*/) {return H264VideoRTPSink::createNew(envir(), rtpGroupsock, rtpPayloadTypeIfDynamic);}

void H264LiveVideoSource::doGetNextFrame() {    int ret;    fFrameSize = 0;    ret = tend_CamVideo_hal_captureFrame(TEND_STREAMID_LIVE, pLiveVideoFrameBuf);    if(ret == 0)    {        fFrameSize = pLiveVideoFrameBuf->buf_used;if(fFrameSize > fMaxSize){fFrameSize = fMaxSize;int frBufUsedBytes = fMaxSize;fNumTruncatedBytes = pLiveVideoFrameBuf->buf_used - frBufUsedBytes;LOGD("Truncat %d bytes\n",fNumTruncatedBytes);memmove(fTo,pLiveVideoFrameBuf->buf,frBufUsedBytes);memmove(fTruncatedBytes,pLiveVideoFrameBuf->buf + frBufUsedBytes,fNumTruncatedBytes);fTruncatedBytesNum = fNumTruncatedBytes;}else{if(fTruncatedBytesNum > 0){memmove(fTo,fTruncatedBytes,fTruncatedBytesNum);memmove(fTo + fTruncatedBytesNum,pLiveVideoFrameBuf->buf,pLiveVideoFrameBuf->buf_used);fFrameSize += fTruncatedBytesNum;LOGD("send last truncted %d bytes\n",fTruncatedBytesNum);fTruncatedBytesNum = 0;}else{memmove(fTo,pLiveVideoFrameBuf->buf,pLiveVideoFrameBuf->buf_used);}}                tend_CamVideo_hal_releaseFrame(TEND_STREAMID_LIVE);    }    else    {        handleClosure();        return;    }fDurationInMicroseconds = 1000000 / 20;if (fPresentationTime.tv_sec == 0 && fPresentationTime.tv_usec == 0) {  // This is the first frame, so use the current time:  gettimeofday(&fPresentationTime, NULL);} else {  // Increment by the play time of the previous frame:  unsigned uSeconds = fPresentationTime.tv_usec + fDurationInMicroseconds;  fPresentationTime.tv_sec += uSeconds/1000000;  fPresentationTime.tv_usec = uSeconds%1000000;} FramedSource::afterGetting(this);}

编译通过nfs运行

 

VLC播放

源码下载地址:

http://download.csdn.net/download/xwu122930/10158177