互动直播-观众布局设置

其他 2019-03-23 07:10:54 阅读次数: 0
版权声明：www.gudianxiaoshuo.com （古典小说网） 今日头条号： 古典古韵古典小说、讨厌编程 https://blog.csdn.net/shuilan0066/article/details/88681052

互动主播中，主播创建房间，然后第一个加入房间，再加入房间时，设置合成连麦布局

一 设置布局时机

1） 主播创建房间

	bool ChatroomForm::StartLiveStream()
	{
		bool ret = false;
		if (!livestreaming_)
		{
			if (master_)  //主播创建房间

			{
				nim::VChat::Opt2Callback cb = nbase::Bind(&ChatroomForm::CreateRoomCallback, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
				
				nim_comp::VideoManager::GetInstance()->CreateRoom(GetRoomName(), "", cb);

				std::string info;
				info = "roomname:";
				info.append(GetRoomName());
				WriteSuccessFuc("主播已经调用creatRoom",info);
				ret = true;
			}
			else
			{

				QLOG_APP(L"StartLiveStream...");
				nim::NIMVideoChatMode mode = nim::kNIMVideoChatModeVideo;
				if (((!master_) && is_audio_interact_) || living_model_ == kAudio)
					mode = nim::kNIMVideoChatModeAudio;
			
				nim::VChat::Opt2Callback cb = nbase::Bind(&ChatroomForm::JoinRoomCallback, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
				
				if (nim_comp::VideoManager::GetInstance()->JoinRoom(mode, GetRoomName(), GetRoomSessionId(), "", true, cb))
				{
					nim_comp::VideoManager::GetInstance()->SetChatRoomCb(nbase::Bind(&ChatroomForm::RoomConnectCallback, this, std::placeholders::_1),
						nbase::Bind(&ChatroomForm::RoomPeopleChangeCallback, this, std::placeholders::_1, std::placeholders::_2), nbase::Bind(&ChatroomForm::LsInfoCallback, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5, std::placeholders::_6));
					ret = true;

					std::string info;
					info = "roomname:";
					info.append(GetRoomName());
					WriteSuccessFuc("观众已经调用JoinRoom，并成功", info);

					QLOG_APP(L"JoinRoom...");
					QLOG_APP(nbase::UTF8ToUTF16(GetRoomName()));
				}
				else{
					std::string info;
					info = "roomname:";
					info.append(GetRoomName());
					WriteSuccessFuc("观众已经调用JoinRoom，但失败", info);
				}
			}
		}
		return ret;
	}

2）在创建房间回调后，加入房间

	void ChatroomForm::CreateRoomCallback(int code, __int64 channel_id, const std::string& json_extension)
	{

		std::string info;
		info = "roomname:";
		info.append(GetRoomName());
		info.append("   channel_id:");
		info.append(std::to_string(channel_id));
		info.append("  code:");
		info.append(std::to_string(code));

		WriteSuccessFuc("CreateRoomCallback 触发，主播已创建Room", info);


		QLOG_ERR(L"CreateRoomCallback code:{0}") << code;
		nim::VChat::Opt2Callback cb = nbase::Bind(&ChatroomForm::JoinRoomCallback, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
		nim::NIMVideoChatMode mode = nim::kNIMVideoChatModeVideo;
		if (living_model_ == kAudio)
		{
			std::string def_device;
			int no = 0;
			nim_comp::VideoManager::GetInstance()->GetDefaultDevicePath(no, def_device, nim::kNIMDeviceTypeAudioIn);
			nim_comp::VideoManager::GetInstance()->StartDevice(nim::kNIMDeviceTypeAudioIn, def_device, kDeviceSessionTypeChatRoom);
			mode = nim::kNIMVideoChatModeAudio;
		}
		


		std::wstring dir = QPath::GetAppPath();
		//测试的时候，给观众传入一个拉流地址
		std::wstring iniPath = dir + L"set.ini";
		if (PathFileExists(iniPath.c_str()))
		{
			TCHAR szPath[266];
			GetPrivateProfileStringW(_T("Layout"), _T("layout"), NULL, szPath, 267, iniPath.c_str());
			if (_tcslen(szPath) > 0)
			{
				m_nLayoutType = (nim::NIMVChatVideoSplitMode)_ttoi(szPath);
			}
		}

       //主播加入房间，设置布局
		if (nim_comp::VideoManager::GetInstance()->JoinRoom(mode, GetRoomName(), GetRoomSessionId(), rtmp_url_, true, cb,m_nLayoutType,pFontPage->BDoubleVideo()))
		{
			std::string info;
			info = "roomname:";
			info.append(GetRoomName());
			info.append("   Session_id:");
			info.append(GetRoomSessionId());
			info.append("  code:");
			info.append(std::to_string(code));


			
			WriteSuccessFuc("主播成功调用JoinRoom", info);

			pFontPage->SendResumeLiveMsg();


			nim_comp::VideoManager::GetInstance()->SetChatRoomCb(nbase::Bind(&ChatroomForm::RoomConnectCallback, this, std::placeholders::_1),
				nbase::Bind(&ChatroomForm::RoomPeopleChangeCallback, this, std::placeholders::_1, std::placeholders::_2), nbase::Bind(&ChatroomForm::LsInfoCallback, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5, std::placeholders::_6));
		}
		else
		{
			std::string info;
			info = "roomname:";
			info.append(GetRoomName());
			info.append("   Session_id:");
			info.append(GetRoomSessionId());
			info.append("  code:");
			info.append(std::to_string(code));
			WriteErrorFuc("主播JoinRoom失败", info);

			StartLiveStreamRet(false,code);
		}
	}

3）在加入房间时，设置布局

bool VideoManager::JoinRoom(nim::NIMVideoChatMode mode, const std::string& room_name, const std::string& session_id, const std::string &rtmp_url, bool bypass_rtmp, nim::VChat::Opt2Callback cb, int nLayout, bool bDoubleMode)
{
	Json::FastWriter fs;
	Json::Value value;
	value[nim::kNIMVChatSessionId] = session_id;
	bool live = false;
	if (!rtmp_url.empty())
	{
		value[nim::kNIMVChatRtmpUrl] = rtmp_url;
		live = true;
	}
	if (bypass_rtmp)
	{
		value[nim::kNIMVChatBypassRtmp] = 1;
		live = true;
	}
	if (live)
	{
		value[nim::kNIMVChatCustomVideo] = 1;
	}
	{

		//kNIMVChatVideoFrameRateNormal = 0,		/**< 视频通话帧率默认值,最大取每秒15帧 */
		//	kNIMVChatVideoFrameRate5 = 1,		/**< 视频通话帧率 最大取每秒5帧 */
		//	kNIMVChatVideoFrameRate10 = 2,		/**< 视频通话帧率 最大取每秒10帧 */
		//	kNIMVChatVideoFrameRate15 = 3,		/**< 视频通话帧率 最大取每秒15帧 */
		//	kNIMVChatVideoFrameRate20 = 4,		/**< 视频通话帧率 最大取每秒20帧 */
		//	kNIMVChatVideoFrameRate25 = 5,		/**< 视频通话帧率 最大取每秒25帧 */

		value[nim::kNIMVChatVideoFrameRate] =  nim::kNIMVChatVideoFrameRate20;
		value[nim::kNIMVChatVideoQuality] = nim::kNIMVChatVideoQuality720p;//分辨率
	}
	{
		value[nim::kNIMVChatAudioHighRate] = 1; //语音高清模式
	

		value[nim::kNIMVChatVideoRecord] = 1; //需要服务器录制视频

		value["rtmp_record"] = 1; //互动直播录制开关

	}

	if (nLayout>=0)
	{
		value[nim::kNIMVChatSplitMode] = nLayout; //自定义布局

		if (nLayout == nim::kNIMVChatSplitCustomLayout)
		{

			std::wstring selfLayoutStr;

			std::wstring dir = QPath::GetAppPath();
			//测试的时候，给观众传入一个拉流地址
			std::wstring iniPath = dir + L"set.ini";
			if (PathFileExists(iniPath.c_str()))
			{
				TCHAR szPath[2000];
				std::wstring nSelfLayoutStr;

				GetPrivateProfileStringW(_T("Layout"), _T("nSelfLayout"), NULL, szPath, 2000, iniPath.c_str());
				if (_tcslen(szPath) > 0)
				{
					nSelfLayoutStr = szPath; //0,1,2,3
				}

				std::wstring selfLayoutItem = L"selfLayout";
				selfLayoutItem.append(nSelfLayoutStr);

				if (bDoubleMode)
				{
					selfLayoutItem = L"selfLayout6";
				}

				//
				//selfLayout0    selfLayout1

				GetPrivateProfileStringW(_T("Layout"), selfLayoutItem.c_str(), NULL, szPath, 2000, iniPath.c_str());
				if (_tcslen(szPath) > 0)
				{
					selfLayoutStr = szPath;
				}
			}
			
			value[nim::kNIMVChatCustomLayout] = nbase::UTF16ToUTF8(selfLayoutStr);

		}
	}





	std::string json_value = fs.write(value);
	return nim::VChat::JoinRoom(mode, room_name, json_value, cb);


}
bool VChat::JoinRoom(NIMVideoChatMode mode, const std::string& room_name, const std::string& json_extension, Opt2Callback cb)
{
	Opt2Callback* cb_pointer = new Opt2Callback(cb);
	return NIM_SDK_GET_FUNC(nim_vchat_join_room)(mode, room_name.c_str(), json_extension.c_str(), OnOpt2Callback, cb_pointer);
}

布局读取：

我将布局，写在了ini配置文件中

二 布局设置

布局设置网址 https://netease.im/paramCheck

参数说明：

1）  version   版本， 默认即可，布局参数校验 规则的版本号

2）   主播是否作为底画面  set_host_as_main

主播作为底画面

主播不作为主画面

此时，可进行底色设置

3） 展示方式 

       adaption     裁剪充满控件方式，还是原图缩放方式     1 裁剪   0 缩放

4） x y, w  h  横纵坐标  画面宽度、高度   采用万分比

5） 连麦者总体属性，还有两个 一是 连麦者数量   二是连麦者位置自适应

       n_host_area_number  连麦者数量

       special_show_mode    语译为 特定的显示模式            连麦者位置是否自适应 

       这个参数有点坑，默认是true

       true时， 特定显示模式， 此时连麦者位置是固定的，不会自适应，房间内的连麦者不会自适应改变自己的位置

       false时，非特定显示模式，连麦者位置自适应， 当有连麦者退出房间时，房间内的剩余连麦者自适应改变位置

设置好了，生成一json串，

{"version":0,"set_host_as_main":true,"host_area":{"adaption":1},"special_show_mode":true,"n_host_area_number":4,"n_host_area_0":{"position_x":7000,"position_y":300,"width_rate":2100,"height_rate":1000,"adaption":1},"n_host_area_1":{"position_x":7000,"position_y":1500,"width_rate":2100,"height_rate":1000,"adaption":1},"n_host_area_2":{"position_x":7000,"position_y":2700,"width_rate":2100,"height_rate":1000,"adaption":1},"n_host_area_3":{"position_x":7000,"position_y":3900,"width_rate":2100,"height_rate":1000,"adaption":1}}

可通过网站 http://tool.oschina.net/codeformat/json，对JSON串，进行格式化处理，方便显示

{
    "version": 0, 
    "set_host_as_main": true, 
    "host_area": {
        "adaption": 1
    }, 
    "special_show_mode": true, 
    "n_host_area_number": 4, 
    "n_host_area_0": {
        "position_x": 7000, 
        "position_y": 300, 
        "width_rate": 2100, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_1": {
        "position_x": 7000, 
        "position_y": 1500, 
        "width_rate": 2100, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_2": {
        "position_x": 7000, 
        "position_y": 2700, 
        "width_rate": 2100, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_3": {
        "position_x": 7000, 
        "position_y": 3900, 
        "width_rate": 2100, 
        "height_rate": 1000, 
        "adaption": 1
    }
}

设计过的布局如下：

底部

1）平铺底部 

{
    "version": 0, 
    "set_host_as_main": true, 
    "host_area": {
        "adaption": 1
    }, 
    "special_show_mode": true, 
    "n_host_area_number": 4, 
    "n_host_area_0": {
        "position_x": 0, 
        "position_y": 7000, 
        "width_rate": 2500, 
        "height_rate": 3000, 
        "adaption": 1
    }, 
    "n_host_area_1": {
        "position_x": 2500, 
        "position_y": 7000, 
        "width_rate": 2500, 
        "height_rate": 3000, 
        "adaption": 1
    }, 
    "n_host_area_2": {
        "position_x": 5000, 
        "position_y": 7000, 
        "width_rate": 2500, 
        "height_rate": 3000, 
        "adaption": 1
    }, 
    "n_host_area_3": {
        "position_x": 7500, 
        "position_y": 7000, 
        "width_rate": 2500, 
        "height_rate": 3000, 
        "adaption": 1
    }
}

1） 小布局

 高 1000  宽 1250  （高/宽==5/6）  

{
    "version": 0, 
    "set_host_as_main": true, 
    "host_area": {
        "adaption": 1
    }, 
    "special_show_mode": false, 
    "n_host_area_number": 4, 
    "n_host_area_0": {
        "position_x": 2500, 
        "position_y": 9000, 
        "width_rate": 1250, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_1": {
        "position_x": 3750, 
        "position_y": 9000, 
        "width_rate": 1250, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_2": {
        "position_x": 5000, 
        "position_y": 9000, 
        "width_rate": 1250, 
        "height_rate": 1000, 
        "adaption": 1
    }, 
    "n_host_area_3": {
        "position_x": 6250, 
        "position_y": 9000, 
        "width_rate": 1250, 
        "height_rate": 1000, 
        "adaption": 1
    }
}

 高 1500  宽 1250  （高/宽==6/5）  

{
    "version": 0, 
    "set_host_as_main": true, 
    "host_area": {
        "adaption": 1
    }, 
    "special_show_mode": false, 
    "n_host_area_number": 4, 
    "n_host_area_0": {
        "position_x": 2500, 
        "position_y": 8500, 
        "width_rate": 1250, 
        "height_rate": 1500, 
        "adaption": 1
    }, 
    "n_host_area_1": {
        "position_x": 3750, 
        "position_y": 8500, 
        "width_rate": 1250, 
        "height_rate": 1500, 
        "adaption": 1
    }, 
    "n_host_area_2": {
        "position_x": 5000, 
        "position_y": 8500, 
        "width_rate": 1250, 
        "height_rate": 1500, 
        "adaption": 1
    }, 
    "n_host_area_3": {
        "position_x": 6250, 
        "position_y": 8500, 
        "width_rate": 1250, 
        "height_rate": 1500, 
        "adaption": 1
    }
}


隐藏其它连麦者

{
    "version": 0, 
    "set_host_as_main": true, 
    "host_area": {
        "adaption": 1
    }, 
    "special_show_mode": false, 
    "n_host_area_number": 4, 
    "n_host_area_0": {
        "position_x": 0, 
        "position_y": 9999, 
        "width_rate": 1, 
        "height_rate": 1, 
        "adaption": 1
    }, 
    "n_host_area_1": {
        "position_x": 0, 
        "position_y": 9999, 
        "width_rate": 1, 
        "height_rate": 1, 
        "adaption": 1
    }, 
    "n_host_area_2": {
        "position_x": 0, 
        "position_y": 9999, 
        "width_rate": 1, 
        "height_rate": 1, 
        "adaption": 1
    }, 
    "n_host_area_3": {
        "position_x": 0, 
        "position_y": 9999, 
        "width_rate": 1, 
        "height_rate": 1, 
        "adaption": 1
    }
}

参考资料：

http://faq.yunxin.163.com/kb/main/#/item/KB0261

JSON格式化工具：   http://tool.oschina.net/codeformat/json

JSON 压缩工具：     https://www.sojson.com/yasuo.html

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转载自blog.csdn.net/shuilan0066/article/details/88681052
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