C++音视频通讯demo源码下载

以下为视频通讯系统中的部分回调函数源码：

具体可以在

http://download.csdn.net/detail/little_rui/7969285

下载

可实现一对一、一对多、多对多的音视频通化要求，也满足文件传输，音视频文件录制等功能需求。

1. /**
2. *  视频数据回调函数
3. */
4. void CALLBACK VideoData_CallBack(DWORD dwUserid, LPVOID lpBuf, DWORD dwLen, BITMAPINFOHEADER bmiHeader, LPVOID lpUserValue)
5. {
6. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
7. if(pDemoDlg)
8. pDemoDlg->DrawUserVideo(dwUserid,lpBuf,dwLen,bmiHeader);
9. }
10. /**
11. *  音频数据回调函数
12. */
13. void CALLBACK AudioData_CallBack(DWORD dwUserid, LPVOID lpBuf, DWORD dwLen, WAVEFORMATEX waveFormatEx, LPVOID lpUserValue)
14. {
15. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
16. if(pDemoDlg)
17. {
18. // do something ...
19. }
20. }
21. /**
22. *  音量更改回调函数
23. */
24. void CALLBACK VolumeChange_CallBack(BRAC_AudioDevice device, DWORD dwCurrentVolume, LPVOID lpUserValue)
25. {
26. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
27. if(pDemoDlg)
28. {
29. if(device == BRAC_AD_WAVEIN)
30. pDemoDlg->OnWaveInVolumeChange(dwCurrentVolume);
31. else
32. pDemoDlg->OnWaveOutVolumeChange(dwCurrentVolume);
33. }
34. }
35. // 透明通道数据回调函数定义
36. void CALLBACK TransBuffer_CallBack(DWORD dwUserid, LPBYTE lpBuf, DWORD dwLen, LPVOID lpUserValue)
37. {
38. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
39. if(pDemoDlg)
40. {
41. CString strNotify;
42. strNotify.Format("TransBuffer_CallBack:dwUserid-%d, bufSize-%d",dwUserid,dwLen);
43. pDemoDlg->AppendLogString(strNotify);
44. }
45. }
46. // 透明通道数据扩展回调函数定义
47. void CALLBACK TransBufferEx_CallBack(DWORD dwUserid, LPBYTE lpBuf, DWORD dwLen, DWORD wParam, DWORD lParam, DWORD dwTaskId, LPVOID lpUserValue)
48. {
49. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
50. if(pDemoDlg)
51. {
52. BOOL bSuccess = FALSE;
53. if(dwLen > 1000)
54. {
55. bSuccess = lpBuf[1000] == ‘Y‘ ? TRUE : FALSE;
56. }
57. CString strNotify;
58. strNotify.Format("TransBufferEx_CallBack:dwUserid-%d, bufSize-%d,verify:%s",dwUserid,dwLen,bSuccess ? "Success" : "Fail");
59. pDemoDlg->AppendLogString(strNotify);
60. }
61. }
62. // 文件传输回调函数定义
63. void CALLBACK TransFile_CallBack(DWORD dwUserid, LPCTSTR lpFileName, LPCTSTR lpTempFilePath, DWORD dwFileLength, DWORD wParam, DWORD lParam, DWORD dwTaskId, LPVOID lpUserValue)
64. {
65. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
66. if(pDemoDlg)
67. {
68. CString strNotify;
69. strNotify.Format("TransFile_CallBack:dwUserid-%d, lpFileName-%s, lpTempFilePath-%s",dwUserid,lpFileName,lpTempFilePath);
70. pDemoDlg->AppendLogString(strNotify);
71. }
72. }
73. // 录像、快照任务完成回调函数定义
74. void CALLBACK RecordSnapShot_CallBack(DWORD dwUserid, LPCTSTR lpFileName, DWORD dwParam, BOOL bRecordType, LPVOID lpUserValue)
75. {
76. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
77. if(pDemoDlg)
78. {
79. CString strNotify;
80. strNotify.Format("%s CallBack:dwUserid-%d, FilePathName-%s",bRecordType?"Record":"SnapShot",(int)dwUserid,lpFileName);
81. pDemoDlg->AppendLogString(strNotify);
82. }
83. }
84. // SDK Filter 通信数据回调函数定义
85. void CALLBACK SDKFilterData_CallBack(LPBYTE lpBuf, DWORD dwLen, LPVOID lpUserValue)
86. {
87. CBRAnyChatSDKDemoDlg*   pDemoDlg = (CBRAnyChatSDKDemoDlg*)lpUserValue;
88. if(pDemoDlg)
89. {
90. CString strNotify;
91. strNotify.Format("SDK Filter CallBack:%s",lpBuf);
92. pDemoDlg->AppendLogString(strNotify);
93. }
94. }
95. /**
96. *  绘制用户视频
97. *  数据来源于回调函数
98. *  @param dwUserid 用户ID号
99. *  @param lpBuf 视频数据缓冲区
100. *  @param dwLen 缓冲区大小
101. *  @param bmiHeader 视频缓冲区的头信息，包含了视频的大小、颜色位数等信息
102. */
103. void CBRAnyChatSDKDemoDlg::DrawUserVideo(DWORD dwUserid, LPVOID lpBuf, DWORD dwLen, BITMAPINFOHEADER bmiHeader)
104. {
105. // 根据用户ID号找到合适的显示区域
106. DWORD dwSite = -1;
107. for(INT i=0; i<DEMO_SHOW_USER_NUM; i++)
108. {
109. if(m_iUserID[i] == (INT)dwUserid)
110. {
111. dwSite = i;
112. break;
113. }
114. }
115. if(dwSite == -1)
116. return;
117. CRect dispRect = m_UserRect[dwSite];
118. //构建Bitmap
119. BITMAPINFOHEADER  *lpbmi = (BITMAPINFOHEADER*)malloc(sizeof(BITMAPINFOHEADER)+dwLen);
120. ZeroMemory(lpbmi,sizeof(BITMAPINFOHEADER)+dwLen);
121. memcpy((LPBYTE)lpbmi,&bmiHeader,sizeof(bmiHeader));
122. memcpy(((LPBYTE)lpbmi+sizeof(BITMAPINFOHEADER)),lpBuf,dwLen);
123. HDC hdc = ::GetDC(m_hWnd);
124. HDC dcMem = ::CreateCompatibleDC(hdc);
125. HBITMAP hBitmap = CreateDIBitmap(hdc,lpbmi,CBM_INIT,(LPBYTE)lpbmi+sizeof(BITMAPINFOHEADER),(LPBITMAPINFO)lpbmi,DIB_RGB_COLORS);
126. //绘图
127. HBITMAP holdbm = (HBITMAP)SelectObject(dcMem,hBitmap);
128. ::SetStretchBltMode(hdc,COLORONCOLOR);
129. ::StretchBlt(hdc,dispRect.left,dispRect.top,dispRect.Width(),dispRect.Height(),dcMem,0,0,bmiHeader.biWidth,bmiHeader.biHeight,SRCCOPY);
130. SelectObject(dcMem,holdbm);
131. ::DeleteDC(dcMem);
132. ::DeleteObject(hBitmap);
133. ::ReleaseDC(m_hWnd,hdc);
134. free(lpbmi);
135. lpbmi = NULL;
136. }
137. BOOL CBRAnyChatSDKDemoDlg::OnInitDialog()
138. {
139. CDialog::OnInitDialog();
140. // IDM_ABOUTBOX must be in the system command range.
141. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
142. ASSERT(IDM_ABOUTBOX < 0xF000);
143. CMenu* pSysMenu = GetSystemMenu(FALSE);
144. if (pSysMenu != NULL)
145. {
146. CString strAboutMenu;
147. strAboutMenu.LoadString(IDS_ABOUTBOX);
148. if (!strAboutMenu.IsEmpty())
149. {
150. pSysMenu->AppendMenu(MF_SEPARATOR);
151. pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
152. }
153. }
154. SetIcon(m_hIcon, TRUE);         // Set big icon
155. SetIcon(m_hIcon, FALSE);        // Set small icon
156. // 初始化每个视频显示位置信息
157. GetDlgItem(IDC_STATIC_USER0)->ShowWindow(SW_HIDE);
158. GetDlgItem(IDC_STATIC_USER0)->GetClientRect(m_UserRect[0]);
159. GetDlgItem(IDC_STATIC_USER0)->ClientToScreen(m_UserRect[0]);
160. ScreenToClient(m_UserRect[0]);
161. GetDlgItem(IDC_STATIC_USER1)->ShowWindow(SW_HIDE);
162. GetDlgItem(IDC_STATIC_USER1)->GetClientRect(m_UserRect[1]);
163. GetDlgItem(IDC_STATIC_USER1)->ClientToScreen(m_UserRect[1]);
164. ScreenToClient(m_UserRect[1]);
165. GetDlgItem(IDC_STATIC_USER2)->ShowWindow(SW_HIDE);
166. GetDlgItem(IDC_STATIC_USER2)->GetClientRect(m_UserRect[2]);
167. GetDlgItem(IDC_STATIC_USER2)->ClientToScreen(m_UserRect[2]);
168. ScreenToClient(m_UserRect[2]);
169. GetDlgItem(IDC_STATIC_USER3)->ShowWindow(SW_HIDE);
170. GetDlgItem(IDC_STATIC_USER3)->GetClientRect(m_UserRect[3]);
171. GetDlgItem(IDC_STATIC_USER3)->ClientToScreen(m_UserRect[3]);
172. ScreenToClient(m_UserRect[3]);
173. // 隐藏录像状态标志
174. GetDlgItem(IDC_STATIC_RECORDSTATE0)->ShowWindow(SW_HIDE);
175. GetDlgItem(IDC_STATIC_RECORDSTATE1)->ShowWindow(SW_HIDE);
176. GetDlgItem(IDC_STATIC_RECORDSTATE2)->ShowWindow(SW_HIDE);
177. GetDlgItem(IDC_STATIC_RECORDSTATE3)->ShowWindow(SW_HIDE);
178. for(INT i=0; i<DEMO_SHOW_USER_NUM; i++)
179. {
180. m_iUserID[i] = -1;
181. }
182. m_dwTransTaskId = -1;
183. m_iPort = 8906;
184. m_iRoomId = 1;
185. SetDlgItemText(IDC_IPADDRESS_SERVER,"demo.anychat.cn");
186. SetDlgItemText(IDC_EDIT_USERNAME,"AnyChat5");
187. UpdateData(FALSE);
188. return TRUE;  // return TRUE  unless you set the focus to a control
189. }
190. void CBRAnyChatSDKDemoDlg::OnSysCommand(UINT nID, LPARAM lParam)
191. {
192. if ((nID & 0xFFF0) == IDM_ABOUTBOX)
193. {
194. CAboutDlg dlgAbout;
195. dlgAbout.DoModal();
196. }
197. else
198. {
199. CDialog::OnSysCommand(nID, lParam);
200. }
201. }
202. // If you add a minimize button to your dialog, you will need the code below
203. //  to draw the icon.  For MFC applications using the document/view model,
204. //  this is automatically done for you by the framework.