近期学习Android平台下跨平台音视频通信开发,尽管网上有非常多开源项目供我们參考学习。但音视频效果非常一般,还有非常多不稳定的因素,毕竟是开源嘛。在国内我找到了一个比較好音视频通信解决方式(百度下载官方Anychat for Android 的demo),该案例提供了纯Java语言接口供我们调用,随后我參照官方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)。

事实上我仅仅是调用其相关API就可以实现。下面是我自己写的Java代码,以备大家互相学习: 

1./** 

2. * Android**天 

3. * 1、初始化SDK 2、连接server、 3、用户登录。4、进入房间;5、打开本地视频;6、请求对方视频 

4. */ 

5.public class VideoChatActivity extends Activity implements AnyChatBaseEvent 

6.{ 

7. private AnyChatCoreSDK anychat; // 核心SDK 

8. private SurfaceView remoteSurfaceView; // 对方视频 

9. private SurfaceView localSurfaceView; // 本地视频 

10. private ConfigEntity configEntity; 

11. private boolean bSelfVideoOpened = false; // 本地视频是否已打开 

12. private boolean bOtherVideoOpened = false; // 对方视频是否已打开 

13. private TimerTask mTimerTask; // 定时器 

14. private Timer mTimer = new Timer(true); 

15. private Handler handler; // 用Handler来不间断刷新即时视频 

16. private List<String> userlist = new ArrayList<String>();//保存在线用户列表 

17. private int userid; // 用户ID 

18. @Override 

19. public void onCreate(Bundle savedInstanceState) 

20. { 

21. super.onCreate(savedInstanceState); 

22. setContentView(R.layout.activity_video_chat); 

23. remoteSurfaceView = (SurfaceView) findViewById(R.id.surface_remote); 

24. localSurfaceView = (SurfaceView) findViewById(R.id.surface_local); 

25. configEntity = ConfigService.LoadConfig(this);//载入视频通话设置 

26. loginSystem();// 初始化SDK 连接server 

27. mTimerTask = new TimerTask(){ 

28. public void run(){ 

29. Message mesasge = new Message(); 

30. handler.sendMessage(mesasge); 

31. } 

32. }; 

33. mTimer.schedule(mTimerTask, 1000, 100); 

34. handler = new Handler(){ 

35. @Override 

36. public void handleMessage(Message msg){ 

37. VideoChat();// 不间断显示即时视频通话画面 

38. super.handleMessage(msg); 

39. } 

40. }; 

41. } 

42. // 初始化SDK 连接server 

43. private void loginSystem(){ 

44. if (anychat == null){ 

45. anychat = new AnyChatCoreSDK(); 

46. anychat.SetBaseEvent(this); // 设置基本事件回调函数 

47. if (configEntity.useARMv6Lib != 0) // 使用ARMv6指令集 

48. anychat.SetSDKOptionInt(AnyChatDefine. 

49. BRAC_SO_CORESDK_USEARMV6LIB, 1); 

50. anychat.InitSDK(android.os.Build.VERSION.SDK_INT, 0); // 初始化SDK 

51. } 

52. anychat.Connect("demo.anychat.cn", 8906);// 连接server 

53. } 

54. // 显示即时视频通话画面 

55. public void VideoChat(){ 

56. if (!bOtherVideoOpened){ 

57. if (anychat.GetCameraState(userid) == 2 

58. && anychat.GetUserVideoWidth(userid) != 0){ 

59. SurfaceHolder holder = remoteSurfaceView.getHolder(); 

60. holder.setFormat(PixelFormat.RGB_565); 

61. holder.setFixedSize(anychat.GetUserVideoWidth(userid), 

62. anychat.GetUserVideoHeight(userid)); 

63. Surface s = holder.getSurface(); // 获得视频画面 

64. anychat.SetVideoPos(userid, s, 0, 0, 0, 0); // 调用API显示视频画面 

65. bOtherVideoOpened = true; 

66. } 

67. } 

68. if (!bSelfVideoOpened){ 

69. if (anychat.GetCameraState(-1) == 2 

70. && anychat.GetUserVideoWidth(-1) != 0){ 

71. SurfaceHolder holder = localSurfaceView.getHolder(); 

72. holder.setFormat(PixelFormat.RGB_565); 

73. holder.setFixedSize(anychat.GetUserVideoWidth(-1), 

74. anychat.GetUserVideoHeight(-1)); 

75. Surface s = holder.getSurface(); 

76. anychat.SetVideoPos(-1, s, 0, 0, 0, 0); 

77. bSelfVideoOpened = true; 

78. } 

79. } 

80. } 

81. public void OnAnyChatConnectMessage(boolean bSuccess){ 

82. if (!bSuccess){ 

83. Toast.makeText(VideoChatActivity.this, "连接server失败。自己主动重连。请稍后...", Toast.LENGTH_SHORT).show(); 

84. } 

85. anychat.Login("android", ""); // server连接成功 用户登录 

86. } 

87. public void OnAnyChatLoginMessage(int dwUserId, int dwErrorCode){ 

88. if (dwErrorCode == 0) { 

89. Toast.makeText(this, "登录成功!", Toast.LENGTH_SHORT).show(); 

90. anychat.EnterRoom(1, ""); // 用户登录成功 进入房间 

91. ApplyVideoConfig(); 

92. } else { 

93. Toast.makeText(this, "登录失败。错误代码:" + dwErrorCode, Toast.LENGTH_SHORT).show(); 

94. } 

95. } 

96. public void OnAnyChatEnterRoomMessage(int dwRoomId, int dwErrorCode){ 

97. if (dwErrorCode == 0) { // 进入房间成功 打开本地音视频 

98. Toast.makeText(this, "进入房间成功", Toast.LENGTH_SHORT).show(); 

99. anychat.UserCameraControl(-1, 1); // 打开本地视频 

100. anychat.UserSpeakControl(-1, 1); // 打开本地音频 

101. } else { 

102. Toast.makeText(this, "进入房间失败,错误代码:" + dwErrorCode, Toast.LENGTH_SHORT).show(); 

103. } 

104. } 

105. public void OnAnyChatOnlineUserMessage(int dwUserNum, int dwRoomId){ 

106. if (dwRoomId == 1){ 

107. int user[] = anychat.GetOnlineUser(); 

108. if (user.length != 0){ 

109. for (int i = 0; i < user.length; i++){ 

110. userlist.add(user[i]+""); 

111. } 

112. String temp =userlist.get(0); 

113. userid = Integer.parseInt(temp); 

114. anychat.UserCameraControl(userid, 1);// 请求用户视频 

115. anychat.UserSpeakControl(userid, 1); // 请求用户音频 

116. } 

117. else { 

118. Toast.makeText(VideoChatActivity.this, "当前没有在线用户", Toast.LENGTH_SHORT).show(); 

119. } 

120. } 

121. } 

122. public void OnAnyChatUserAtRoomMessage(int dwUserId, boolean bEnter){ 

123. if (bEnter) {//新用户进入房间 

124. userlist.add(dwUserId+""); 

125. } 

126. else { //用户离开房间 

127. if (dwUserId == userid) 

128. { 

129. Toast.makeText(VideoChatActivity.this, "视频用户已下线", Toast.LENGTH_SHORT).show(); 

130. anychat.UserCameraControl(userid, 0);// 关闭用户视频 

131. anychat.UserSpeakControl(userid, 0); // 关闭用户音频 

132. userlist.remove(userid+""); //移除该用户 

133. if (userlist.size() != 0) 

134. { 

135. String temp =userlist.get(0); 

136. userid = Integer.parseInt(temp); 

137. anychat.UserCameraControl(userid, 1);// 请求其它用户视频 

138. anychat.UserSpeakControl(userid, 1); // 请求其它用户音频 

139. } 

140. } 

141. else { 

142. userlist.remove(dwUserId+""); //移除该用户 

143. } 

144. } 

145. } 

146. public void OnAnyChatLinkCloseMessage(int dwErrorCode){ 

147. Toast.makeText(VideoChatActivity.this, "连接关闭,error:" + dwErrorCode, Toast.LENGTH_SHORT).show(); 

148. } 

149. @Override 

150. protected void onDestroy(){ //程序退出 

151. anychat.LeaveRoom(-1); //离开房间 

152. anychat.Logout(); //注销登录 

153. anychat.Release(); //释放资源 

154. mTimer.cancel(); 

155. super.onDestroy(); 

156. } 

157. // 依据配置文件配置视频參数 

158. private void ApplyVideoConfig(){ 

159. if (configEntity.configMode == 1) // 自己定义视频參数配置 

160. { 

161. // 设置本地视频编码的码率(假设码率为0,则表示使用质量优先模式) 

162. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_BITRATECTRL,configEntity.videoBitrate); 

163. if (configEntity.videoBitrate == 0) 

164. { 

165. // 设置本地视频编码的质量 

166. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_QUALITYCTRL,configEntity.videoQuality); 

167. } 

168. // 设置本地视频编码的帧率 

169. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_FPSCTRL,configEntity.videoFps); 

170. // 设置本地视频编码的关键帧间隔 

171. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_GOPCTRL,configEntity.videoFps * 4); 

172. // 设置本地视频採集分辨率 

173. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_WIDTHCTRL,configEntity.resolution_width); 

174. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_HEIGHTCTRL,configEntity.resolution_height); 

175. // 设置视频编码预设參数(值越大,编码质量越高,占用CPU资源也会越高) 

176. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_PRESETCTRL,configEntity.videoPreset); 

177. } 

178. // 让视频參数生效 

179. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_APPLYPARAM,configEntity.configMode); 

180. // P2P设置 

181. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_NETWORK_P2PPOLITIC,configEntity.enableP2P); 

182. // 本地视频Overlay模式设置 

183. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_OVERLAY,configEntity.videoOverlay); 

184. // 回音消除设置 

185. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_AUDIO_ECHOCTRL,configEntity.enableAEC); 

186. // 平台硬件编码设置 

187. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_CORESDK_USEHWCODEC,configEntity.useHWCodec); 

188. // 视频旋转模式设置 

189. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_ROTATECTRL,configEntity.videorotatemode); 

190. // 视频平滑播放模式设置 

191. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_STREAM_SMOOTHPLAYMODE,configEntity.smoothPlayMode); 

192. // 视频採集驱动设置 

193. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_CAPDRIVER,configEntity.videoCapDriver); 

194. // 本地视频採集偏色修正设置 

195. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_LOCALVIDEO_FIXCOLORDEVIA,configEntity.fixcolordeviation); 

196. // 视频显示驱动设置 

197. anychat.SetSDKOptionInt(AnyChatDefine.BRAC_SO_VIDEOSHOW_DRIVERCTRL,configEntity.videoShowDriver); 

198. } 

199.}

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