安卓N版本NuPlayer向服务端发送RTSP请求

最新推荐文章于 2024-11-16 12:25:35 发布

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最新推荐文章于 2024-11-16 12:25:35 发布

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分类专栏： RTSP 文章标签： RTSP

本文链接：https://blog.youkuaiyun.com/u011294619/article/details/61196685

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本文深入解析了安卓N版本中ARTSPConnection的sendRequest方法及消息处理流程，详细介绍了如何发送请求并接收响应。

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　　贴出安卓N版本ARTSPConnection::sendRequest原文：
　　

==>
void ARTSPConnection::sendRequest(
        const char *request, const sp<AMessage> &reply) {
    //新建消息msg，消息名为kWhatSendRequest，消息的处理者为this，也即ARTSPConnection
    //将要发送的消息添加到"request"字段
    //将应答异步处理消息的引用添加到"reply"字段
    sp<AMessage> msg = new AMessage(kWhatSendRequest, this);
    msg->setString("request", request);
    msg->setMessage("reply", reply);
    msg->post();
}　

==>
void ARTSPConnection::onMessageReceived(const sp<AMessage> &msg) {
    switch (msg->what()) {
        case kWhatConnect:
            onConnect(msg);
            break;

        case kWhatDisconnect:
            onDisconnect(msg);
            break;

        case kWhatCompleteConnection:
            onCompleteConnection(msg);
            break;

        case kWhatSendRequest:
            //对消息名为kWhatSendRequest的处理
            //调用onSendRequest(msg)完成处理的细节
            //onSendRequest下一文介绍
            onSendRequest(msg);
            break;

        case kWhatReceiveResponse:
            onReceiveResponse();
            break;

        case kWhatObserveBinaryData:
        {
            CHECK(msg->findMessage("reply", &mObserveBinaryMessage));
            break;
        }

        default:
            TRESPASS();
            break;
    }
}