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SDKprivate 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<String> userlist = new ArrayList<String>();//保存在线用户列表private int userid; // 用户ID@Overridepublic 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(){@Overridepublic 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();}@Overrideprotected 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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