如何实现一套可切换的声网+阿里的直播引擎
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前言
小盒的直播业务一开始是打算用两套引擎切换使用的,所以需要封装一下。而且因为声网和阿里的直播sdk的官方文档都不是很全面,甚至有的还有错误(可能是文档没及时更新)导致无法正常运行,接入时问题多多,所以同时记录一下的接入过程中的问题及处理。
定义接口
首先因为需要两个引擎切换使用,所以定义了接口,定义常用的行为
public interface RtcEngine
void init(Context context, RtcInfo config);
void join();
void leave();
void setRtcListener(RtcListener rtcListener);
这里RtcInfo
是两个sdk需要用到的参数,由服务端提供。我们是初始化时一次性提供,当然也可以实时提供,如果实时提供,join函数也需要一些添加必要参数。
RtcInfo
的定义如下:
public class RtcInfo
public AgoraConfig agoraConfig;
public AliConfig aliConfig;
public String rtcType;
public class AgoraConfig
public String liveChannel;
public String appId;
public int avatarUID;
public int liveUID;
public String liveToken;
public class AliConfig
public String liveChannel;
public String appId;
public String avatarUID;
public String liveUID;
public String liveToken;
...
另外还有一个监听RtcListener
,统一了两个sdk的回调,可以自行丰富
public interface RtcListener
void remoteOnline(View remoteView); //当收到流之后,将remoteView加入页面中展示
void remoteOffline();
接入声网
声网的封装类,实现RtcEngine
接口:
public class AgoraEngine implements RtcEngine
private final String TAG = this.getClass().getSimpleName();
private Context mContext;
private io.agora.rtc.RtcEngine engine;
private RtcInfo mConfig;
private RtcListener listener;
private SurfaceView mRemoteView;
private final IRtcEngineEventHandler iRtcEngineEventHandler = new IRtcEngineEventHandler()
@Override
public void onJoinChannelSuccess(String s, int i, int i1)
super.onJoinChannelSuccess(s, i, i1);
@Override
public void onLeaveChannel(RtcStats rtcStats)
super.onLeaveChannel(rtcStats);
@Override
public void onUserOffline(int i, int i1)
super.onUserOffline(i, i1);
@Override
public void onWarning(int i)
super.onWarning(i);
@Override
public void onError(int i)
super.onError(i);
@Override
public void onUserJoined(final int uid, int elapsed)
super.onUserJoined(uid, elapsed);
//这里获取到流,设置RemoteVideo并展示
//因为有两路流,我们只使用了一路,所以需要判断一下,只展示老师的流
if (uid != mConfig.agoraConfig.avatarUID && uid < xxxx)
...
if (uid == mConfig.agoraConfig.avatarUID)
//发现uid与老师id一致,创建设置RemoteVideo并展示
mRemoteView.setActivated(true);
mRemoteView.setEnabled(true);
new Handler(mContext.getMainLooper()).post(new Runnable()
@Override
public void run()
mRemoteView = io.agora.rtc.RtcEngine.CreateRendererView(mContext);
mRemoteView.setActivated(true);
mRemoteView.setEnabled(true);
if(listener != null)
//交给页面处理,一般是将播放器展示出来
listener.joinSuccess(mRemoteView);
...
);
@Override
public void onFirstRemoteVideoFrame(final int uid, int w, int h, int i3)
//官方文档表明在这里会获取第一祯流,然后设置RemoteVideo并展示。实际使用中发现这里根本不回调,而且在onUserJoined中处理RemoteVideo
;
@Override
public void init(Context context, RtcInfo config)
mConfig = config;
mContext = context.getApplicationContext();
try
engine = io.agora.rtc.RtcEngine.create(mContext, config.agoraConfig.appId, iRtcEngineEventHandler);
engine.setChannelProfile(Constants.CHANNEL_PROFILE_LIVE_BROADCASTING);
engine.setVideoProfile(Constants.VIDEO_PROFILE_240P_4, false);
engine.setClientRole(Constants.CLIENT_ROLE_AUDIENCE);
engine.enableVideo();
engine.setParameters("\\"che.audio.keep.audiosession\\":true");
catch (Exception e)
Log.e(TAG, TAG, e);
engine = null;
@Override
public void join()
if(engine != null)
engine.joinChannel(mConfig.agoraConfig.liveToken, mConfig.agoraConfig.liveChannel, "", mConfig.agoraConfig.liveUID);
@Override
public void leave()
if(engine != null)
engine.leaveChannel();
io.agora.rtc.RtcEngine.destroy();
engine = null;
@Override
public void setRtcListener(RtcListener rtcListener)
listener = rtcListener;
重点注意onFirstRemoteVideoFrame
在官方文档表明在这里会获取第一祯流,然后设置RemoteVideo
并展示。实际使用中发现这里根本不回调,而且在onUserJoined
中处理RemoteVideo
,在官方Demo里也是这么处理的,应该是文档更新滞后了。(不知道现在更没更新)。
代码中我们没有对onUserOffline
进行处理,后续实际上是补充了相关功能,这里注意的是一定要校验uid,否则可能导致问题。比如在老师退出直播间的时候我们需要做一些页面调整,但是如果这里没有校验uid,那么其他人(特殊身份)在退出时也会执行这部分代码。
接入阿里直播
阿里的封装类,同样实现RtcEngine
接口:
public class AliEngine implements RtcEngine
private final String TAG = this.getClass().getSimpleName();
private Context mContext;
private AliRtcEngine mEngine;
private RtcInfo mConfig;
//private SophonSurfaceView mRemoteView;
private AliRtcEngine.AliVideoCanvas mCanvas;
private RtcListener listener;
private AliRtcEngineEventListener aliRtcEngineEventListener = new AliRtcEngineEventListener()
...
;
private AliRtcEngineNotify aliRtcEngineNotify = new AliRtcEngineNotify()
...
@Override
public void onRemoteTrackAvailableNotify(final String uid, AliRtcEngine.AliRtcAudioTrack audioTrack, final AliRtcEngine.AliRtcVideoTrack videoTrack)
super.onRemoteTrackAvailableNotify(uid, audioTrack, videoTrack);
//收到流的第一祯,先判断是不是老师的流
if(uid.equals(mConfig.aliConfig.avatarUID))
// mEngine.configRemoteAudio(mConfig.aliConfig.avatarUID, true);
// mEngine.configRemoteScreenTrack(mConfig.aliConfig.avatarUID, true);
// mEngine.configRemoteCameraTrack(mConfig.aliConfig.avatarUID, true, true);
// mEngine.subscribe(mConfig.aliConfig.avatarUID);
new Handler(mContext.getMainLooper()).post(new Runnable()
@Override
public void run()
if(mEngine == null)
return;
AliRtcRemoteUserInfo info = mEngine.getUserInfo(uid);
if(info == null)
return;
AliRtcEngine.AliVideoCanvas cameraCanvas = info.getCameraCanvas();
AliRtcEngine.AliVideoCanvas screenCanvas = info.getScreenCanvas();
if(videoTrack == AliRtcEngine.AliRtcVideoTrack.AliRtcVideoTrackNo)
screenCanvas = null;
cameraCanvas = null;
else if(videoTrack == AliRtcEngine.AliRtcVideoTrack.AliRtcVideoTrackCamera)
//我们只需要摄像头的流。这里创建设置remoteView,并展示
mCanvas = new AliRtcEngine.AliVideoCanvas();
SophonSurfaceView mRemoteView = new SophonSurfaceView(mContext);
if(listener != null)
//交给页面处理,一般是将播放器展示出来
listener.joinSuccess(mRemoteView);
mRemoteView.setZOrderOnTop(true);
mRemoteView.setZOrderMediaOverlay(true);
mCanvas.view = mRemoteView;
...
screenCanvas = null;
cameraCanvas = mCanvas;
mEngine.setRemoteViewConfig(cameraCanvas, uid, AliRtcEngine.AliRtcVideoTrack.AliRtcVideoTrackCamera);
);
...
;
@Override
public void init(Context context, RtcInfo config)
mContext = context;
mConfig = config;
mEngine = AliRtcEngine.getInstance(context);
mEngine.setRtcEngineEventListener(aliRtcEngineEventListener);
mEngine.setRtcEngineNotify(aliRtcEngineNotify);
mEngine.setClientRole(AliRtcEngine.AliRTCSDK_Client_Role.AliRTCSDK_live);
mEngine.setChannelProfile(AliRtcEngine.AliRTCSDK_Channel_Profile.AliRTCSDK_Interactive_live);
mEngine.setAutoPublishSubscribe(false, true);
@Override
public void join()
AliRtcAuthInfo info = new AliRtcAuthInfo();
info.setConferenceId(mConfig.aliConfig.liveChannel);
info.setAppid(mConfig.aliConfig.appId);
info.setUserId(mConfig.aliConfig.liveUID);
...
info.setToken(mConfig.aliConfig.liveToken);
if(mEngine != null)
mEngine.joinChannel(info, "");
@Override
public void leave()
if(mEngine != null)
mEngine.leaveChannel();
mEngine = null;
@Override
public void setRtcListener(RtcListener rtcListener)
listener = rtcListener;
与声网的很类似,注意事项也差不多,因为关键部分都有注释,这里就不细说了。
总结
这样在进入直播前,通过后台获取直播配置,根据类型初始化不同的引擎来使用即可。
源码
关注公众号:BennuCTech,发送“RtcEngine”获取完整源码。
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