怎么做这个任务：我有一个任务，我只需要一个人就可以广播所有连接的网络摄像头。IE。其他连接不播放视频，只看到一个（管理员）。
我只是想研究它。请帮忙帮忙！
如果可以，请禁用广播公司和观众的语音流。
我必须如何在 Agora 演示场景中的 TestHelloUnityVideo.cs 中进行修改？
using UnityEngine;
using UnityEngine.UI;
using agora_gaming_rtc;
using agora_utilities;
// this is an example of using Agora Unity SDK
// It demonstrates:
// How to enable video
// How to join/leave channel
//
public class TestHelloUnityVideo
{
// instance of agora engine
private IRtcEngine mRtcEngine;
// load agora engine
public void loadEngine(string appId)
{
// start sdk
Debug.Log("initializeEngine");
if (mRtcEngine != null)
{
Debug.Log("Engine exists. Please unload it first!");
return;
}
// init engine
mRtcEngine = IRtcEngine.GetEngine(appId);
// enable log
mRtcEngine.SetLogFilter(LOG_FILTER.DEBUG | LOG_FILTER.INFO | LOG_FILTER.WARNING | LOG_FILTER.ERROR | LOG_FILTER.CRITICAL);
}
public void join(string channel)
{
Debug.Log("calling join (channel = " + channel + ")");
if (mRtcEngine == null)
return;
// set callbacks (optional)
mRtcEngine.OnJoinChannelSuccess = onJoinChannelSuccess;
mRtcEngine.OnUserJoined = onUserJoined;
mRtcEngine.OnUserOffline = onUserOffline;
// enable video
mRtcEngine.EnableVideo();
// allow camera output callback
mRtcEngine.EnableVideoObserver();
// join channel
mRtcEngine.JoinChannel(channel, null, 0);
// Optional: if a data stream is required, here is a good place to create it
int streamID = mRtcEngine.CreateDataStream(true, true);
Debug.Log("initializeEngine done, data stream id = " + streamID);
}
public string getSdkVersion()
{
string ver = IRtcEngine.GetSdkVersion();
if (ver == "2.9.1.45")
{
ver = "2.9.2"; // A conversion for the current internal version#
}
else
{
if (ver == "2.9.1.46")
{
ver = "2.9.2.2"; // A conversion for the current internal version#
}
}
return ver;
}
public void leave()
{
Debug.Log("calling leave");
if (mRtcEngine == null)
return;
// leave channel
mRtcEngine.LeaveChannel();
// deregister video frame observers in native-c code
mRtcEngine.DisableVideoObserver();
}
// unload agora engine
public void unloadEngine()
{
Debug.Log("calling unloadEngine");
// delete
if (mRtcEngine != null)
{
IRtcEngine.Destroy(); // Place this call in ApplicationQuit
mRtcEngine = null;
}
}
public void EnableVideo(bool pauseVideo)
{
if (mRtcEngine != null)
{
if (!pauseVideo)
{
mRtcEngine.EnableVideo();
}
else
{
mRtcEngine.DisableVideo();
}
}
}
// accessing GameObject in Scnene1
// set video transform delegate for statically created GameObject
public void onSceneHelloVideoLoaded()
{
// Attach the SDK Script VideoSurface for video rendering
GameObject quad = GameObject.Find("Quad");
if (ReferenceEquals(quad, null))
{
Debug.Log("BBBB: failed to find Quad");
return;
}
else
{
quad.AddComponent<VideoSurface>();
}
GameObject cube = GameObject.Find("Cube");
if (ReferenceEquals(cube, null))
{
Debug.Log("BBBB: failed to find Cube");
return;
}
else
{
cube.AddComponent<VideoSurface>();
}
}
// implement engine callbacks
private void onJoinChannelSuccess(string channelName, uint uid, int elapsed)
{
Debug.Log("JoinChannelSuccessHandler: uid = " + uid);
GameObject textVersionGameObject = GameObject.Find("VersionText");
textVersionGameObject.GetComponent<Text>().text = "SDK Version : " + getSdkVersion();
}
// When a remote user joined, this delegate will be called. Typically
// create a GameObject to render video on it
private void onUserJoined(uint uid, int elapsed)
{
Debug.Log("onUserJoined: uid = " + uid + " elapsed = " + elapsed);
// this is called in main thread
// find a game object to render video stream from 'uid'
GameObject go = GameObject.Find(uid.ToString());
if (!ReferenceEquals(go, null))
{
return; // reuse
}
// create a GameObject and assign to this new user
VideoSurface videoSurface = makeImageSurface(uid.ToString());
if (!ReferenceEquals(videoSurface, null))
{
// configure videoSurface
videoSurface.SetForUser(uid);
videoSurface.SetEnable(true);
videoSurface.SetVideoSurfaceType(AgoraVideoSurfaceType.RawImage);
videoSurface.SetGameFps(30);
}
}
public VideoSurface makePlaneSurface(string goName)
{
GameObject go = GameObject.CreatePrimitive(PrimitiveType.Plane);
if (go == null)
{
return null;
}
go.name = goName;
// set up transform
go.transform.Rotate(-90.0f, 0.0f, 0.0f);
float yPos = Random.Range(3.0f, 5.0f);
float xPos = Random.Range(-2.0f, 2.0f);
go.transform.position = new Vector3(xPos, yPos, 0f);
go.transform.localScale = new Vector3(0.25f, 0.5f, .5f);
// configure videoSurface
VideoSurface videoSurface = go.AddComponent<VideoSurface>();
return videoSurface;
}
private const float Offset = 100;
public VideoSurface makeImageSurface(string goName)
{
GameObject go = new GameObject();
if (go == null)
{
return null;
}
go.name = goName;
// to be renderered onto
go.AddComponent<RawImage>();
// make the object draggable
go.AddComponent<UIElementDragger>();
GameObject canvas = GameObject.Find("Canvas");
if (canvas != null)
{
go.transform.parent = canvas.transform;
}
// set up transform
go.transform.Rotate(0f, 0.0f, 180.0f);
float xPos = Random.Range(Offset - Screen.width / 2f, Screen.width / 2f - Offset);
float yPos = Random.Range(Offset, Screen.height / 2f - Offset);
go.transform.localPosition = new Vector3(xPos, yPos, 0f);
go.transform.localScale = new Vector3(3f, 4f, 1f);
// configure videoSurface
VideoSurface videoSurface = go.AddComponent<VideoSurface>();
return videoSurface;
}
// When remote user is offline, this delegate will be called. Typically
// delete the GameObject for this user
private void onUserOffline(uint uid, USER_OFFLINE_REASON reason)
{
// remove video stream
Debug.Log("onUserOffline: uid = " + uid + " reason = " + reason);
// this is called in main thread
GameObject go = GameObject.Find(uid.ToString());
if (!ReferenceEquals(go, null))
{
Object.Destroy(go);
}
}
}
这是 Unity 的演示场景代码。