FLV格式文件如何组RTMP包发送给RTMP服务器进行直播

FLV格式详细见文章 FLV文件格式

如下代码依赖于librtmp.lib

#include <stdio.h>

#include <stdlib.h>

#include <time.h>

#include "librtmp/rtmp_sys.h"

#include "librtmp/log.h"

#pragma comment(lib,"ws2_32.lib")

#pragma comment(lib,"lib/librtmp.lib")

#define HTON16(x)  ((x>>8&0xff)|(x<<8&0xff00))

#define HTON24(x)  ((x>>16&0xff)|(x<<16&0xff0000)|x&0xff00)

#define HTON32(x)  ((x>>24&0xff)|(x>>8&0xff00)|\

(x<<8&0xff0000)|(x<<24&0xff000000))

bool Read8(int &i8,FILE*fp);

bool Read16(int &i16,FILE*fp);

bool Read24(int &i24,FILE*fp);

bool Read32(int &i32,FILE*fp);

bool Peek8(int &i8,FILE*fp);

bool ReadTime(int &itime,FILE*fp);

RTMP*rtmp=NULL;//rtmp应用指针

RTMPPacket*packet=NULL;//rtmp包结构

char* rtmpurl="rtmp://192.168.11.210/live/test";//连接的URL

char* flvfile="test.flv";//读取的flv文件

bool ZINIT();//初始化相关

void ZCLEAR();//清除相关

int main()

{
if (!ZINIT())
{
printf("init socket err\n");
return -1;
}

        /////////////////////////////////初始化//////////////////////

        //RTMP_debuglevel=RTMP_LOGINFO;//信息等级(0-6)
RTMP_LogLevel lvl=RTMP_LOGINFO;
RTMP_LogSetLevel(lvl);//设置信息等级
//RTMP_LogSetOutput(FILE*fp);//设置信息输出文件
rtmp=RTMP_Alloc();//申请rtmp空间
RTMP_Init(rtmp);//初始化rtmp设置
rtmp->Link.timeout=5;//设置连接超时，单位秒，默认30秒
packet=new RTMPPacket();//创建包
RTMPPacket_Alloc(packet,1024*64);//给packet分配数据空间
RTMPPacket_Reset(packet);//重置packet状态

////////////////////////////////连接//////////////////
RTMP_SetupURL(rtmp,rtmpurl);//设置url
RTMP_EnableWrite(rtmp);//设置可写状态
if (!RTMP_Connect(rtmp,NULL))//连接服务器
{
printf("connect err\n");
ZCLEAR();
return -1;
}

if (!RTMP_ConnectStream(rtmp,0))//创建并发布流(取决于rtmp->Link.lFlags)
{
printf("ConnectStreamerr\n");
ZCLEAR();
return -1;
}
packet->m_hasAbsTimestamp = 0; //绝对时间戳
packet->m_nChannel = 0x04; //通道
packet->m_nInfoField2 = rtmp->m_stream_id;

FILE*fp=fopen(flvfile,"rb");
if (fp==NULL)
{
printf("open file:%s err\n",flvfile);
ZCLEAR();
return -1;
}

printf("rtmpurl:%s\nflvfile:%s\nsend data ...\n",rtmpurl,flvfile);
////////////////////////////////////////发送数据//////////////////////
fseek(fp,9,SEEK_SET);//跳过前9个字节
fseek(fp,4,SEEK_CUR);//跳过4字节长度
long start=clock()-1000;
long perframetime=0;//上一帧时间戳
while(TRUE)
{
if((clock()-start)<perframetime)//发的太快就等一下
{
Sleep(500);
continue;
}
int type=0;//类型
int datalength=0;//数据长度
int time=0;//时间戳
int streamid=0;//流ID
if(!Read8(type,fp))
break;
if(!Read24(datalength,fp))
break;
if(!ReadTime(time,fp))
break;
if(!Read24(streamid,fp))
break;

if (type!=0x08&&type!=0x09)
{
fseek(fp,datalength+4,SEEK_CUR);
continue;
}

if(fread(packet->m_body,1,datalength,fp)!=datalength)
break;
packet->m_headerType = RTMP_PACKET_SIZE_MEDIUM; 
packet->m_nTimeStamp = time; 
packet->m_packetType=type;
packet->m_nBodySize=datalength;

if (!RTMP_IsConnected(rtmp))
{
printf("rtmp is not connect\n");
break;
}
int nRet = RTMP_SendPacket(rtmp,packet,0);
if (!nRet)
{
printf("send err\n");
break;
}
int alldatalength=0;//该帧总长度
if(!Read32(alldatalength,fp))
break;
perframetime=time;
}
printf("send data over\n");
fclose(fp);
ZCLEAR();
return 0;

}

bool ZINIT()

{
WORD version;
WSADATA wsaData;
version=MAKEWORD(2,2);
if(WSAStartup(version,&wsaData)!=0)
{
return FALSE;
}
return TRUE;

}

void ZCLEAR()

{
///////////////////////
4000
///////////////////释放/////////////////////
if (rtmp!=NULL)
{
RTMP_Close(rtmp);//断开连接
RTMP_Free(rtmp);//释放内存
rtmp=NULL;
}
if (packet!=NULL)
{
RTMPPacket_Free(packet);//释放内存
delete packet;
packet=NULL;
}
///////////////////////////////////////////////////
WSACleanup();

}

bool Read8(int &i8,FILE*fp)

{
if(fread(&i8,1,1,fp)!=1)
return false;
return true;

}

bool Read16(int &i16,FILE*fp)

{
if(fread(&i16,2,1,fp)!=1)
return false;
i16=HTON16(i16);
return true;

}

bool Read24(int &i24,FILE*fp)

{
if(fread(&i24,3,1,fp)!=1)
return false;
i24=HTON24(i24);
return true;

}

bool Read32(int &i32,FILE*fp)

{
if(fread(&i32,4,1,fp)!=1)
return false;
i32=HTON32(i32);
return true;

}

bool Peek8(int &i8,FILE*fp)

{
if(fread(&i8,1,1,fp)!=1)
return false;
fseek(fp,-1,SEEK_CUR);
return true;

}

bool ReadTime(int &itime,FILE*fp)

{
int temp=0;
if(fread(&temp,4,1,fp)!=1)
return false;
itime=HTON24(temp);
itime|=(temp&0xff000000);
return true;

}