librtmp使用方法

      rtmp是常见的一种流媒体协议，它是由Adobe公司提出的一种应用层协议。rtmp传输的是flv格式的封装数据，flv中保存的一般是H.264视频流和AAC音频流。librtmp库实现了rtmp协议的客户端功能，以及少数服务端功能。 librtmp的下载地址：RTMPDump 

1、rtmp播放流步骤
1)初始化

RTMP *pRtmp = RTMP_Alloc();
if(pRtmp != NULL)
{
  RTMP_Init();
  if(!RTMP_SetupURL(pRtmp,"http://127.0.0.1:1935/live/test"))
 {
   RTMP_Free(pRtmp);
   pRtmp = NULL;
 }
}

2)连接服务器

RTMP_Connect(pRtmp, NULL);

3)是否连接服务器成功

bool bIsConnectedSuccess = false;
if(RTMP_IsConnected(pRtmp) == 0)
{
  bIsConnectedSuccess  = false;
}
else
{
  bIsConnectedSuccess = true;
}

4)连接流

bool bSuccess = false;
if(RTMP_ConnectStream(pRtmp,0) == 0)
{
  bSuccess = false;
}
else
{
  bSuccess = true;
}

5)读取流
循环调用RTMP_ReadPacket

6)断开流

RTMP_DeleteStream(pRtmp);
RTMP_SendCreateStream(pRtmp);

7)断开服务器

RTMP_Close(pRtmp);

8)反初始化

if(pRtmp != NULL)
{
   RTMP_Free(pRtmp);
   pRtmp = NULL;
}

//播放流过程中服务器断开，重连处理。调用ReConnect函数或者RTMP_ReconnectStream函数

bool ReConnect()
{
bool bIsConnected = false;
if(RTMP_IsConnected(pRtmp) == 0)
{
  RTMP_Close(pRtmp);
  if(RTMP_SetupURL(pRtmp,"http://127.0.0.1:1935/live/test"))
 {
  if(RTMP_Connect(pRtmp, NULL))
 {
   if(RTMP_ConnectStrream(pRtmp,0))
  {
   bool bIsConnected = true;
  }
 }
 }
}
 return bIsConnected;
}

2、rtmp发布流步骤
1)初始化

RTMP *pRtmp = RTMP_Alloc();
if(pRtmp != NULL)
{
  RTMP_Init();
  if(!RTMP_SetupURL(pRtmp,"http://127.0.0.1:1935/live/test"))
 {
   RTMP_Free(pRtmp);
 }
else
 {
    RTMP_EnableWrite(pRtmp);
 }
}

2)连接服务器

RTMP_Connect(pRtmp, NULL);

3)是否连接服务器成功

bool bIsConnectedSuccess = false;
if(RTMP_IsConnected(pRtmp) == 0)
{
  bIsConnectedSuccess  = false;
}
else
{
  bIsConnectedSuccess = true;
}

4)连接流

bool bSuccess = false;
if(RTMP_ConnectStream(pRtmp,0) == 0)
{
  bSuccess = false;
}
else
{
  bSuccess = true;
}

5)写入流
循环调用RTMP_SendPacket

6)断开流

RTMP_DeleteStream(pRtmp);
RTMP_SendCreateStream(pRtmp);

7)断开服务器

RTMP_Close(pRtmp);

8)反初始化

if(pRtmp != NULL)
{
   RTMP_Free(pRtmp);
   pRtmp = NULL;
}

//写入流过程中服务器断开，重连处理。调用ReConnect函数或者RTMP_ReconnectStream函数

bool ReConnect()
{
bool bIsConnected = false;
if(RTMP_IsConnected(pRtmp) == 0)
{
  RTMP_Close(pRtmp);
  if(RTMP_SetupURL(pRtmp,"http://127.0.0.1:1935/live/test"))
 {
   RTMP_EnableWrite(pRtmp);
  if(RTMP_Connect(pRtmp, NULL))
 {
   if(RTMP_ConnectStrream(pRtmp,0))
  {
   bool bIsConnected = true;
  }
 }
 }
}
 return bIsConnected;
}

参考资料：
https://blog.csdn.net/qq_34305316/article/details/109401401
https://blog.csdn.net/leixiaohua1020/article/details/42104893
https://blog.csdn.net/leixiaohua1020/article/details/42104945