200行Java代码实现Android下的视频通话

最近学习Android平台下跨平台音视频通信开发,虽然网上有很多开源项目供我们参考学习,但音视频效果很一般,还有很多不稳定的因素,毕竟是开源嘛。在国内我找到了一个比较好音视频通信解决方案(点击下载官方demo),该案例提供了纯Java语言接口供我们调用,随后我参照官方android demo程序和开发文档并结合自己的见解写了一个android音频通信软件,200行以内代码就搞定了(难以相信吧)。其实我只是调用其相关API即可实现。以下是我自己写的Java代码,以备大家互相学习:

/**
 * Android视频聊天 
 * 1、初始化SDK 2、连接服务器、 3、用户登录;4、进入房间;5、打开本地视频;6、请求对方视频
 */
public class VideoChatActivity extends Activity implements AnyChatBaseEvent
{
	private AnyChatCoreSDK anychat; 		// 核心SDK
	private SurfaceView remoteSurfaceView; 	// 对方视频
	private SurfaceView localSurfaceView; 	// 本地视频
	private ConfigEntity configEntity;
	private boolean bSelfVideoOpened = false; 	// 本地视频是否已打开
	private boolean bOtherVideoOpened = false; 	// 对方视频是否已打开
	private TimerTask mTimerTask; 				// 定时器
	private Timer mTimer = new Timer(true);
	private Handler handler; 					// 用Handler来不间断刷新即时视频
	private List userlist = new ArrayList();//保存在线用户列表
	private int userid; 						// 用户ID
	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_video_chat);
		remoteSurfaceView = (SurfaceView) findViewById(R.id.surface_remote);
		localSurfaceView = (SurfaceView) findViewById(R.id.surface_local);
		configEntity = ConfigService.LoadConfig(this);//加载视频通话设置
		loginSystem();// 初始化SDK 连接服务器
		mTimerTask = new TimerTask(){
			public void run(){
				Message mesasge = new Message();
				handler.sendMessage(mesasge);
			}
		};
		mTimer.schedule(mTimerTask, 1000, 100);
		handler = new Handler(){
			@Override
			public void handleMessage(Message msg){
				VideoChat();// 不间断显示即时视频通话画面
				super.handleMessage(msg);
			}
		};
	}
	// 初始化SDK 连接服务器
	private void loginSystem(){
		if (anychat == null){
			anychat = new AnyChatCoreSDK();
			anychat.SetBaseEvent(this);			// 设置基本事件回调函数
			if (configEntity.useARMv6Lib != 0)	// 使用ARMv6指令集
				anychat.SetSDKOptionInt(AnyChatDefine.
						BRAC_SO_CORESDK_USEARMV6LIB, 1);
			anychat.InitSDK(android.os.Build.VERSION.SDK_INT, 0); // 初始化SDK
		}
		anychat.Connect("demo.anychat.cn", 8906);// 连接服务器
	}
	// 显示即时视频通话画面
	public void VideoChat(){
		if (!bOtherVideoOpened){
			if (anychat.GetCameraState(userid) == 2
					&& anychat.GetUserVideoWidth(userid) != 0){
				SurfaceHolder holder = remoteSurfaceView.getHolder();
				holder.setFormat(PixelFormat.RGB_565);
				holder.setFixedSize(anychat.GetUserVideoWidth(userid),
						anychat.GetUserVideoHeight(userid));
				Surface s = holder.getSurface();			// 获得视频画面
				anychat.SetVideoPos(userid, s, 0, 0, 0, 0); // 调用API显示视频画面
				bOtherVideoOpened = true;
			}
		}
		if (!bSelfVideoOpened){
			if (anychat.GetCameraState(-1) == 2
					&& anychat.GetUserVideoWidth(-1) != 0){
				SurfaceHolder holder = localSurfaceView.getHolder();
				holder.setFormat(PixelFormat.RGB_565);
				holder.setFixedSize(anychat.GetUserVideoWidth(-1),
						anychat.GetUserVideoHeight(-1));
				Surface s = holder.getSurface();
				anychat.SetVideoPos(-1, s, 0, 0, 0, 0);
				bSelfVideoOpened = true;
			}
		}
	}
	public void OnAnyChatConnectMessage(boolean bSuccess){
		if (!bSuccess){
			Toast.makeText(VideoChatActivity.this, "连接服务器失败,自动重连,请稍后...", Toast.LENGTH_SHORT).show();
		}
		anychat.Login("android", ""); 				// 服务器连接成功 用户登录
	}
	public void OnAnyChatLoginMessage(int dwUserId, int dwErrorCode){
		if (dwErrorCode == 0) {
			Toast.makeText(this, "登录成功!", Toast.LENGTH_SHORT).show();
			anychat.EnterRoom(1, ""); 				// 用户登录成功 进入房间
			ApplyVideoConfig();
		} else {
			Toast.makeText(this, "登录失败,错误代码:" + dwErrorCode, Toast.LENGTH_SHORT).show();
		}
	}
	public void OnAnyChatEnterRoomMessage(int dwRoomId, int dwErrorCode){
		if (dwErrorCode == 0) {						// 进入房间成功  打开本地音视频
			Toast.makeText(this, "进入房间成功", Toast.LENGTH_SHORT).show();
			anychat.UserCameraControl(-1, 1); 		// 打开本地视频
			anychat.UserSpeakControl(-1, 1); 		// 打开本地音频
		} else {
			Toast.makeText(this, "进入房间失败,错误代码:" + dwErrorCode, Toast.LENGTH_SHORT).show();
		}
	}
	public void OnAnyChatOnlineUserMessage(int dwUserNum, int dwRoomId){
		if (dwRoomId == 1){
			int user[] = anychat.GetOnlineUser();
			if (user.length != 0){
				for (int i = 0; i < user.length; i++){
					userlist.add(user[i]+"");
				}
				String temp =userlist.get(0);
				userid = Integer.parseInt(temp);
				anychat.UserCameraControl(userid, 1);// 请求用户视频
				anychat.UserSpeakControl(userid, 1); // 请求用户音频
			}
			else {
				Toast.makeText(VideoChatActivity.this, "当前没有在线用户", Toast.LENGTH_SHORT).show();
			}
		}
	}
	public void OnAnyChatUserAtRoomMessage(int dwUserId, boolean bEnter){
		if (bEnter)	{//新用户进入房间
			userlist.add(dwUserId+"");
		}
		else {		 //用户离开房间
			if (dwUserId == userid)
			{
				Toast.makeText(VideoChatActivity.this, "视频用户已下线", Toast.LENGTH_SHORT).show();
				anychat.UserCameraControl(userid, 0);// 关闭用户视频
				anychat.UserSpeakControl(userid, 0); // 关闭用户音频
				userlist.remove(userid+"");			 //移除该用户
				if (userlist.size() != 0)
				{
					String temp =userlist.get(0);
					userid = Integer.parseInt(temp);
					anychat.UserCameraControl(userid, 1);// 请求其他用户视频
					anychat.UserSpeakControl(userid, 1); // 请求其他用户音频
				}
			}
			else {
				userlist.remove(dwUserId+"");    //移除该用户
			}
		}
	}
	public void OnAnyChatLinkCloseMessage(int dwErrorCode){
		Toast.makeText(VideoChatActivity.this, "连接关闭,error:" + dwErrorCode, Toast.LENGTH_SHORT).show();
	}
	@Override
	protected void onDestroy(){	//程序退出 
		anychat.LeaveRoom(-1);	//离开房间 
		anychat.Logout();		//注销登录 
		anychat.Release();		//释放资源
		mTimer.cancel();
		super.onDestroy();
	}
	// 根据配置文件配置视频参数
	private void ApplyVideoConfig(){
		if (configEntity.configMode == 1) // 自定义视频参数配置
		{
			// 设置本地视频编码的码率(如果码率为0,则表示使用质量优先模式)
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_BITRATECTRL,configEntity.videoBitrate);
			if (configEntity.videoBitrate == 0)
			{
				// 设置本地视频编码的质量
				anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_QUALITYCTRL,configEntity.videoQuality);
			}
			// 设置本地视频编码的帧率
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_FPSCTRL,configEntity.videoFps);
			// 设置本地视频编码的关键帧间隔
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_GOPCTRL,configEntity.videoFps * 4);
			// 设置本地视频采集分辨率
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_WIDTHCTRL,configEntity.resolution_width);
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_HEIGHTCTRL,configEntity.resolution_height);
			// 设置视频编码预设参数(值越大,编码质量越高,占用CPU资源也会越高)
			anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_PRESETCTRL,configEntity.videoPreset);
		}
		// 让视频参数生效
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_APPLYPARAM,configEntity.configMode);
		// P2P设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_NETWORK_P2PPOLITIC,configEntity.enableP2P);
		// 本地视频Overlay模式设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_OVERLAY,configEntity.videoOverlay);
		// 回音消除设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_AUDIO_ECHOCTRL,configEntity.enableAEC);
		// 平台硬件编码设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_CORESDK_USEHWCODEC,configEntity.useHWCodec);
		// 视频旋转模式设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_ROTATECTRL,configEntity.videorotatemode);
		// 视频平滑播放模式设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_STREAM_SMOOTHPLAYMODE,configEntity.smoothPlayMode);
		// 视频采集驱动设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_CAPDRIVER,configEntity.videoCapDriver);
		// 本地视频采集偏色修正设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_FIXCOLORDEVIA,configEntity.fixcolordeviation);
		// 视频显示驱动设置
		anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_VIDEOSHOW_DRIVERCTRL,configEntity.videoShowDriver);
	}
}

  

详细看了官方的开发文档你会发现,该Android音视频解决方案还有文字聊天、发送文件、P2P连接等非常实用的功能。对于开发者来说,能快速实现类似QQ聊天和音视频通信是令人振奋的事情。如有不懂可以加QQ讨论:992139738;附上我写的demo程序供参考学习,效果图查看图片附件

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