vs2005下编译jrtplib-3.9.0和jthread-1.3.0

 最近要做网络监控视频的传输,以前就接触过图像处理的基本东西,对于网络稍微了解一点,对于视频的编解码则是一窍不通。这两周查阅了不少资料,发现一般使

用的网路协议都是RTP/RTCP,网络上找了不少资料,本来想整个现成的例子看看,下了不少发现都不满意,只好自己找到那个很牛的老外Jori写的开源的RTP库jrtplib研究一下自己编译一下,学学了。

首先从他的个人网站上http://research.edm.uhasselt.be/~jori/page/index.php?n=CS.Jrtplib下载最新的jrtplib-3.9.0,以及最新的jthread-1.3.0(他的页面上也有下载),解压完之后,看了看ReadMe发现需要Cmake编译,oh!mygod!慢慢来吧。

使用Cmake_gui 2.8版本,首先编译生成jthread.lib。

添加完路径之后,很顺利的就可以得到vs2005下的工程文件,编译之后可以在C:/Program Files/jthread/include(默认的路径)下看到jthread的头文件以及在C:/Program Files/jthread/lib下的lib文件(一般吧debug和release都编译一下)。

然后就是jrtplib的编译了。

jrtplib的cmake编译需要jthread.lib(jthread_d.lib)编译,cmake不会用,开始时出现错误,后来自己摸索着试了试,成功了,就是在编译几个example时发现有warning,也没什么关系。设置如图所示

这样再generate就可以了(不知道以后有没有问题,反正现在没问题)。

然后就是vs2005中的生成lib库了。

首先需要将所有jrtplib中src下的头文件中包含jmutex.h和jthread.h的include全部修改为include "jmutex."和include"jthread.h",然后进行下一步

打开工程文件编译之后安装,可以在C:\Program Files\jrtplib下面看到两个文件夹include和lib分别放着头文件和库文件。

打开example1,进行相应的设置之后run,发现可以运行了!

这样应该就可以在工程中使用jrtplib库了---------还没有试,期待ing。。。。。

另:在Jori的主页上有关于这两个库jrtplib和jthread的使用手册的pdf下载可以参考。

NOTE:开始时没有将jthread和jmutex的include修改,虽然编译成功了,运行example也可以但是自己编的程序就出问题,后来参考了一下http://blog.csdn.net/aaronalan/article/details/5153604 重新编译的才行了。

附上一个在网上找到的例子:

/*
   Here's a small IPv4 example: it asks for a portbase and a destination and 
   starts sending packets to that destination.
*/

#include "rtpsession.h"
#include "rtpudpv4transmitter.h"
#include "rtpipv4address.h"
#include "rtpsessionparams.h"
#include "rtperrors.h"
#include "rtppacket.h"
#ifndef WIN32
	#include <netinet/in.h>
	#include <arpa/inet.h>
#else
	#include <winsock2.h>
#endif // WIN32
#include <stdlib.h>
#include <stdio.h>
#include <iostream>
#include <string>

using namespace jrtplib;
#pragma comment(lib,"jrtplib_d.lib")
#pragma comment(lib,"jthread_d.lib")
#pragma comment(lib,"ws2_32.lib")
//
// This function checks if there was a RTP error. If so, it displays an error
// message and exists.
//

void checkerror(int rtperr)
{
	if (rtperr < 0)
	{
		std::cout << "ERROR: " << RTPGetErrorString(rtperr) << std::endl;
		exit(-1);
	}
}

//
// The main routine
//

int main(void)
{
#ifdef WIN32
	WSADATA dat;
	WSAStartup(MAKEWORD(2,2),&dat);
#endif // WIN32
	
	RTPSession sess;
	uint16_t portbase,destport;
	uint32_t destip;
	std::string ipstr;
	int status,i,num;
	BYTE *pBuffer;
	BYTE *pfBuffer;
        // First, we'll ask for the necessary information
		
	std::cout << "Enter local portbase:" << std::endl;
	std::cin >> portbase;
	std::cout << std::endl;
	
	std::cout << "Enter the destination IP address" << std::endl;
	std::cin >> ipstr;
	destip = inet_addr(ipstr.c_str());
	if (destip == INADDR_NONE)
	{
		std::cerr << "Bad IP address specified" << std::endl;
		return -1;
	}
	
	// The inet_addr function returns a value in network byte order, but
	// we need the IP address in host byte order, so we use a call to
	// ntohl
	destip = ntohl(destip);
	
	std::cout << "Enter the destination port" << std::endl;
	std::cin >> destport;
	
	std::cout << std::endl;
	std::cout << "Number of packets you wish to be sent:" << std::endl;
	std::cin >> num;
	
	// Now, we'll create a RTP session, set the destination, send some
	// packets and poll for incoming data.
	
	RTPUDPv4TransmissionParams transparams;
	RTPSessionParams sessparams;
	
	// IMPORTANT: The local timestamp unit MUST be set, otherwise
	//            RTCP Sender Report info will be calculated wrong
	// In this case, we'll be sending 10 samples each second, so we'll
	// put the timestamp unit to (1.0/10.0)
	sessparams.SetOwnTimestampUnit(1.0/10.0);		
	
	sessparams.SetAcceptOwnPackets(true);
	transparams.SetPortbase(portbase);
	status = sess.Create(sessparams,&transparams);	
	checkerror(status);
	
	RTPIPv4Address addr(destip,destport);
	
	status = sess.AddDestination(addr);
	checkerror(status);
	
	for (i = 1 ; i <= num ; i++)
	{
		printf("\nSending packet %d/%d\n",i,num);
		
		// send the packet
		status = sess.SendPacket((void *)"1234567890",10,0,false,10);
		checkerror(status);
		
		sess.BeginDataAccess();
		
		// check incoming packets
		if (sess.GotoFirstSourceWithData())
		{
			do
			{
				RTPPacket *pack;
				while ((pack = sess.GetNextPacket()) != NULL)
				{
					// You can examine the data here
					printf("Got packet !\n");

					std::cout << "Got packet with " 
						<< "extended sequence number " 
						<< pack->GetExtendedSequenceNumber() 
						<< " from SSRC " << pack->GetSSRC() 
						<< std::endl;

					int dataLength = pack->GetPayloadLength();
					pfBuffer =(unsigned char*)pack->GetPayloadData();
					pBuffer = new BYTE[dataLength + 1];
					memcpy(pBuffer, pfBuffer, dataLength);
					pBuffer[dataLength] = 0;
					std::cout << pBuffer << std::endl;
 					delete []pBuffer;
 					pBuffer = NULL;
					// we don't longer need the packet, so
					// we'll delete it
					sess.DeletePacket(pack);
				}
			} while (sess.GotoNextSourceWithData());
		}
		
		sess.EndDataAccess();

#ifndef RTP_SUPPORT_THREAD
		status = sess.Poll();
		checkerror(status);
#endif // RTP_SUPPORT_THREAD
		
		RTPTime::Wait(RTPTime(1,0));
	}
	
	sess.BYEDestroy(RTPTime(10,0),0,0);

#ifdef WIN32
	WSACleanup();
#endif // WIN32
	return 0;
}

 

例子是在Jori给的example中加入了收报后的解析,运行正常!

你可能感兴趣的:(function,网络,delete,include,byte,图像处理)