初始化RTMP推流

一、RTMP直播推流流程图
二、初始化RTMP流程

void *callBackPush(void *data)
{
    RtmpPush *rtmpPush = static_cast<RtmpPush *>(data);
    //分配空间
    rtmpPush->rtmp = RTMP_Alloc();
    //初始化
    RTMP_Init(rtmpPush->rtmp);
    //设置推流URL
    rtmpPush->rtmp->Link.timeout = 10;
    //设置可写状态
    rtmpPush->rtmp->Link.lFlags |= RTMP_LF_LIVE;
    //链接服务器
    RTMP_SetupURL(rtmpPush->rtmp, rtmpPush->url);
    //链接流
    RTMP_EnableWrite(rtmpPush->rtmp);
    //如果服务器没有启动，那么会连接不上rtmp 的url
    if(!RTMP_Connect(rtmpPush->rtmp, NULL))
    {
        LOGE("can not connect the url");
        goto end;
    }
    //如果有其他地方给服务器推流，那么再次推流会连接不上服务器的
    if(!RTMP_ConnectStream(rtmpPush->rtmp, 0))
    {
        LOGE("can not connect the stream of service");
        goto end;
    }

    LOGD("链接成功， 开始推流");
    //开始推流

//    while(true)
//    {}




    end:
    //关闭链接
    RTMP_Close(rtmpPush->rtmp);
    //释放资源
    RTMP_Free(rtmpPush->rtmp);
    rtmpPush->rtmp = NULL;
    pthread_exit(&rtmpPush->push_thread);
}

总结：
1、需要添加网络权限，如果没有添加网络权限，那么调用RTMP_Connect(rtmpPush->rtmp, NULL)该方法就会返回失败

  <uses-permissionandroid:name="android.permission.INTERNET"/>

2、当我们推流过程中有，我们再次推流那就会连接不上服务器的

2020-06-06 13:13:30.538 25770-25770/com.wq.livepusher D/wq892373445: initPush
2020-06-06 13:13:30.658 25770-25933/com.wq.livepusher E/wq892373445: can not connect the url
2020-06-06 13:13:47.910 25770-25770/com.wq.livepusher D/wq892373445: initPush
2020-06-06 13:13:49.846 25770-25957/com.wq.livepusher D/wq892373445: 链接成功， 开始推流
2020-06-06 13:14:00.396 25770-25770/com.wq.livepusher D/wq892373445: initPush
2020-06-06 13:14:10.911 25770-25969/com.wq.livepusher E/wq892373445: can not connect the stream of service