VUE与UE5 像素流送

1：首先安装Pixel Streaming插件

 

启动后需重启

2： 偏好设置

额外启动参数：

-AudioMixer -PixelStreamingIP=localhost -PixelStreamingPort=8888

3：打包window
4：打包结束后，将UE的运行包新建一个快捷方式（按住ATL直接拖动）

5：给快捷方式添加相关运行参数：

-AudioMixer -PixelStreamingIP=localhost -PixelStreamingPort=8888

6：新建VUE工程

7：将UE5打包好的js文件拷贝到VUE里‘app.js’与‘webRtcPlayer.js’

8：将app.js更改为webrtc.js（可有可无）

9：vue项目index.html将webRtcPlayer导入

 10：修改webrtc

修改websocket的链接地址（本人是写死的）

 添加导出块

 末文添加：

var temp = new window.webRtcPlayer({});
var webrtc = {
	load: load,
	webRtcPlayer: temp,
	resizePlayer: resizePlayerStyle,
	emitUIInter: emitUIInteraction
}

export default {
	webrtc
}

 11：新增vue代码块

12：启动

在UE5打包好的Windows\Samples\PixelStreaming\WebServers\SignallingWebServer\platform_scripts\cmd路径下有个run_local.bat，首先将其启动起来

 接着启动Windows里我们创建的快捷方式启动

 

这时，之前启动的会出现一句话 ，即成功

最后启动VUE点击'click to start'.

完结，撒花

2022年7月28日 新增：

VUE 与 UE5交互

1：首先蓝图里添加组件 为关卡中的Actor添加一个：PixelStreamingInput

蓝图如下：

2：

vue代码

const onClickGift = (id) => {
  if (isLoad.value) {
    console.log("onClickGift:::", id);
    let data = {
      id,
    };
    api_send("onUEGiftCall", data, (info) => {
      console.log("api_register========", info);
    });
  }
};


app.js/webrtc.js代码

let bLog = true;

// 前端发消息给后端，并监听返回
export function api_send(proto, data, callback) {
    let jsonData = { command: 'event', func_name: proto, args: data };
    if (bLog) {
        console.log('send:', jsonData);
    }
    //
    responseEventListeners.set(proto, callback);
    //
    emitUIInteraction(jsonData);
}

PS:

1： webrtc里面有很多找不到的id,这个哪里报错删哪里，先跑起来再说后面的

2：之前出过Player101错误：解决方法

        在UE5打包好的Windows\Engine\Source\Programs\PixelStreaming\WebServers\SignallingWebServer路径下有个cirrus.js，

在第376行后加入如下代码：

_RemoveExtmapAllowMixed(msg);// 替换sdp协议内新内容

此块代码如下：

playerServer.on('connection', function (ws, req) {
	// Reject connection if streamer is not connected
	if (!streamer || streamer.readyState != 1 /* OPEN */) {
		ws.close(1013 /* Try again later */, 'Streamer is not connected');
		return;
	}

	let playerId = ++nextPlayerId;
	console.log(`player ${playerId} (${req.connection.remoteAddress}) connected`);
	players.set(playerId, { ws: ws, id: playerId });

	function sendPlayersCount() {
		let playerCountMsg = JSON.stringify({ type: 'playerCount', count: players.size });
		for (let p of players.values()) {
			p.ws.send(playerCountMsg);
		}
	}
	
	ws.on('message', function (msg) {
		console.logColor(logging.Blue, `<- player ${playerId}: ${msg}`);

		try {
			msg = JSON.parse(msg);
		} catch (err) {
			console.error(`Cannot parse player ${playerId} message: ${err}`);
			ws.close(1008, 'Cannot parse');
			return;
		}

		if (msg.type == 'offer') {
			console.log(`<- player ${playerId}: offer`);
			_RemoveExtmapAllowMixed(msg);// 替换sdp协议内新内容
			msg.playerId = playerId;
			streamer.send(JSON.stringify(msg));
		} else if (msg.type == 'iceCandidate') {
			console.log(`<- player ${playerId}: iceCandidate`);
			msg.playerId = playerId;
			streamer.send(JSON.stringify(msg));
		} else if (msg.type == 'stats') {
			console.log(`<- player ${playerId}: stats\n${msg.data}`);
		} else if (msg.type == 'kick') {
			let playersCopy = new Map(players);
			for (let p of playersCopy.values()) {
				if (p.id != playerId) {
					console.log(`kicking player ${p.id}`)
					p.ws.close(4000, 'kicked');
				}
			}
		} else {
			console.error(`<- player ${playerId}: unsupported message type: ${msg.type}`);
			ws.close(1008, 'Unsupported message type');
			return;
		}
	});

	function onPlayerDisconnected() {
		players.delete(playerId);
		streamer.send(JSON.stringify({type: 'playerDisconnected', playerId: playerId}));
		sendPlayerDisconnectedToFrontend();
		sendPlayerDisconnectedToMatchmaker();
		sendPlayersCount();
	}

	ws.on('close', function(code, reason) {
		console.logColor(logging.Yellow, `player ${playerId} connection closed: ${code} - ${reason}`);
		onPlayerDisconnected();
	});

	ws.on('error', function(error) {
		console.error(`player ${playerId} connection error: ${error}`);
		ws.close(1006 /* abnormal closure */, error);
		onPlayerDisconnected();
	});

	sendPlayerConnectedToFrontend();
	sendPlayerConnectedToMatchmaker();

	ws.send(JSON.stringify(clientConfig));

	sendPlayersCount();
});

在文件末尾追加如下代码

/**
 * sdp协议更新的方法
 * @param desc offer内容
 * @returns {string}
 */
function _RemoveExtmapAllowMixed(desc) {
    if (desc.sdp.indexOf('\na=extmap-allow-mixed') !== -1) {
        const sdp = desc.sdp.split('\n').filter((line) => {
            return line.trim() !== 'a=extmap-allow-mixed';
        }).join('\n');
        desc.sdp = sdp;
        return sdp;
    }
}

参考文献

vue3集成ue5像素流自定义网页

Vue.js集成UE4像素流自定义网页的实现方式

像素流送

Player 101找不到问题的解决方法