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MergeAvi.cpp
资源名称：avimerge.rar　[点击查看]
上传用户：bossts
上传日期：2017-06-05
资源大小：78k
文件大小：3k
源码类别：

多媒体编程

开发平台：

Visual C++

MergeAvi.cpp：源码内容
  1. #include "StdAfx.h"
  2. #include "MergeAvi.h"
  4. CMergeAvi::CMergeAvi(void)
  5. {
  6. CoInitialize(0);
  7. AVIFileInit();
  8. }
  10. CMergeAvi::~CMergeAvi(void)
  11. {
  12. AVIStreamRelease(m_Stream[0]);
  13. AVIStreamRelease(m_Stream[1]);
  15. AVIFileExit();
  16. CoUninitialize();
  17. }
  19. HRESULT CMergeAvi::CreateStream(LPCSTR pFileName)
  20. {
  21. HRESULT hr;
  22. PAVIFILE pFile1;
  23. PAVISTREAM pStream,pStreamAudio;
  24.  
  26. hr=AVIFileOpen(&pFile1,pFileName,OF_READWRITE,NULL);
  27. if(hr!= AVIERR_OK)
  28. return hr;
  30. //read video stream
  31. hr=AVIFileGetStream(pFile1,&pStream,streamtypeVIDEO,NULL);
  32. if(hr!= AVIERR_OK)
  33. {
  34. AVIFileRelease(pFile1);
  35. return hr;
  36. }
  37. //read audio stream
  38. hr=AVIFileGetStream(pFile1,&pStreamAudio,streamtypeAUDIO,NULL);
  39. if(hr!=AVIERR_OK)
  40. {
  41. AVIStreamRelease(pStream);
  42. AVIFileRelease(pFile1);
  43. return hr;
  44. }
  45. //create editable stream
  46. hr=CreateEditableStream(&m_Stream[0],pStream);
  47. if(hr!=AVIERR_OK)
  48. {
  49. AVIStreamRelease(pStream);
  50. AVIStreamRelease(pStreamAudio);
  51. AVIFileRelease(pFile1);
  52. return hr;
  53. }
  54. hr=CreateEditableStream(&m_Stream[1],pStreamAudio);
  55. if(hr!=AVIERR_OK)
  56. {
  57. AVIStreamRelease(pStream);
  58. AVIStreamRelease(pStreamAudio);
  59. AVIStreamRelease(m_Stream[0]);
  60. AVIFileRelease(pFile1);
  61. return hr;
  62. }
  63. AVIStreamRelease(pStream);
  64. AVIStreamRelease(pStreamAudio);
  65. AVIFileRelease(pFile1);
  66. return hr;
  67. }
  69. HRESULT CMergeAvi::MergeFileToStream(LPCSTR pSourceFileName)
  70. {
  71. HRESULT hr;
  72. PAVIFILE sourceFile;
  73. PAVISTREAM pStreamVideo,pStreamAudio;
  74.  
  75. LONG   plPos;     
  76. LONG   plLength;    
  77. LONG   lStart;     
  78. LONG   lLength; 
  81. hr=AVIFileOpen(&sourceFile,pSourceFileName,OF_READ,NULL);
  82. if(hr!= AVIERR_OK)
  83. {
  84. return hr;
  85. }
  87. //read video stream
  88. hr=AVIFileGetStream(sourceFile,&pStreamVideo,streamtypeVIDEO,NULL);
  89. if(hr!=AVIERR_OK)
  90. {
  91. AVIStreamRelease(pStreamVideo);
  92. AVIFileRelease(sourceFile);
  93. return hr;
  94. }
  96. //read audio stream
  97. hr=AVIFileGetStream(sourceFile,&pStreamAudio,streamtypeAUDIO,NULL);
  98. if(hr!=AVIERR_OK)
  99. {
  100. AVIStreamRelease(pStreamVideo);
  101. AVIStreamRelease(pStreamAudio);
  102. AVIFileRelease(sourceFile);
  103. return hr;
  104. }
  106. //Copy video
  107. plPos=AVIStreamStart(m_Stream[0])+AVIStreamLength(m_Stream[0]);
  108. plLength=AVIStreamLength(pStreamVideo);
  109. lStart=AVIStreamStart(pStreamVideo);
  110. lLength=AVIStreamLength(pStreamVideo);
  111. hr=EditStreamPaste(m_Stream[0],&plPos,&plLength,pStreamVideo,lStart,lLength);
  112. if(hr!=AVIERR_OK)
  113. {
  114. goto Cleaning;
  115. }
  117. //Copy audio
  118. plPos=AVIStreamStart(m_Stream[1])+AVIStreamLength(m_Stream[1]);
  119. plLength=AVIStreamLength(pStreamAudio);
  120. lStart=AVIStreamStart(pStreamAudio);
  121. lLength=AVIStreamLength(pStreamAudio);
  122. hr=EditStreamPaste(m_Stream[1],&plPos,&plLength,pStreamAudio,lStart,lLength);
  123. if(hr!=AVIERR_OK)
  124. {
  125. goto Cleaning;
  126. }
  128. Cleaning:
  129. AVIStreamRelease(pStreamVideo);
  130. AVIStreamRelease(pStreamAudio);
  131. AVIFileRelease(sourceFile);
  133. return hr;
  134. }
  136. HRESULT CMergeAvi::SaveStream(LPCSTR pFileName,AVISAVECALLBACK lpfnCallBack)
  137. {
  138. HRESULT hr;
  141. hr=AVISaveV(pFileName,NULL,lpfnCallBack,2,m_Stream,NULL);
  142. return hr;
  143. }