DirectShow VC6.0 开发环境的搭建

今天要用DirectShow做一个音频采集程序，结果遇到的第一个问题便是开发环境的搭建，需要几步准备。

1）下载支持DirectShow的SDK

2）将SDK中的include和lib目录配置到VC6.0下（一般SDK在安装过程中会自己配置）

3）编译SDK中samples中提供的项目，得到Strmbasd.lib winmm.lib库文件，这个要在新建的DirectShow工程中引用

 

第一步，我为了能够开发DirectShow程序，曾想过用VC6.0或者VS2005，只要这两个有一个配置成功了，我便用哪个，因为我对开发环境并不关注。

我先后下载并安装了微软提供的两个SDK，一个是Windows.Server.2003.Platform.SDK.Feb.2003.Edition-QUANTUM，另一个是DXSDK_Aug08。这两个到后来我没有配置成功，所以这里略过，我没配置成功不代表别人就配置不成。

我最后下载了成功配置的SDK，这就是dx9sdk，在百度里搜索“DirectX9.0b SDK Summer 2003”应该可以搜到并下载。安装之后，果然有这个目录：<SDK root>\SAMPLES\C++\DirectShow\BASECLASSES

下面，进入第二步。

第二步，打开VC6.0

Tools->Options->Directories
Include - 添加<SDK root>\Include
Lib       - 添加<SDK root>\Lib
            - 添加<SDK root>\SAMPLES\C++\DirectShow\BASECLASSES\DEBUG  //这个目录在第3步之后会出现的

第三步，对于<SDK root>\SAMPLES\C++\DirectShow\BASECLASSES的编译，我要转引网上一篇我十分感激的文章：

转引开始：

 

我也是个初学者，要是以下的文章有什么错误，请给我留言，谢谢！

[1] 请确保您的机子上已经安装了VS 2005和DirectX 9.0b SDK。DX9.0 SDK的下载地址就不写了，自己在网上找吧！（我的DX9.0安装在D盘根目录下）

[2] 首先编译SamplesC++DirectShowBaseClasses目录下的baseclasses.sln以得到两个库文件（strbase.lib和strmbase.lib）。以下介绍的主要是如何修改编译中的错误，这也是众多文章中没有叙述的部分。自己写的，有些啰嗦，请原谅哦！

    进入DirectShow的安装目录，找到SamplesC++DirectShowBaseClasses，双击baseclasses.sln打开该解决方案。首先看到的会是Visual Studio的转换向导，不用管它，直接Next到Finish。

    点击F5，调试运行，你会见到下面的错误（至少我编译的时候就是这样的结果）：

    1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
    1>Compiling...
    1>dllentry.cpp
    1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(222) : error C2146: syntax error : missing ';' before identifier 'PVOID64'
    1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(222) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(5940) : error C2146: syntax error : missing ';' before identifier 'Buffer'
    1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(5940) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(5940) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:DXSDKSamplesC++DirectShowBaseClassesctlutil.h(278) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
    1>d:DXSDKincludeuuids.h : warning C4819: The file contains a character that cannot be represented in the current code page (936). Save the file in Unicode format to prevent data loss
    1>Build log was saved at "file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
    1>BaseClasses - 6 error(s), 1 warning(s)
    ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

    没办法，改错。（网上老外的文章中说过，不过也不明白什么意思！）

    双击1>D:Program FilesMicrosoft Visual Studio 8VCPlatformSDKincludewinnt.h(222) : error C2146: syntax error : missing ';' before identifier 'PVOID64'   跳转到出错的位置。

    你会见到错误语句：typedef void * POINTER_64 PVOID64;

    这样的定义，VS2005中是不支持的。将其修改为两条语句：

    #define POINTER_64 __ptr64

    typedef void *PVOID;
    typedef void *POINTER_64 PVOID64;

    然后调试运行，会发现还有1条错误：

      1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
      1>Compiling...
      1>dllentry.cpp
      1>d:DXSDKSamplesC++DirectShowBaseClassesctlutil.h(278) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
      1>d:DXSDKincludeuuids.h : warning C4819: The file contains a character that cannot be represented in the current code page (936). Save the file in Unicode format to prevent data loss
      1>Build log was saved at "file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
      1>BaseClasses - 1 error(s), 1 warning(s)
      ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

    只有继续改啦！双击1>d:DXSDKSamplesC++DirectShowBaseClassesctlutil.h(278) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 跳转到出错的位置。

    你会见到错误语句：operator=(LONG);

    只是没有返回值嘛！给它加一个就行了，将其改为：LONG operator=(LONG);

    再次调试运行，哇塞！更多错误：

      1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
      1>Compiling...
      1>wxdebug.cpp
      1>.wxdebug.cpp(534) : warning C4996: '_vsnwprintf' was declared deprecated
      1>        D:Program FilesMicrosoft Visual Studio 8VCincludestdio.h(450) : see declaration of '_vsnwprintf'
      1>        Message: 'This function or variable may be unsafe. Consider using _vsnwprintf_s instead. To disable deprecation, use _CRT_SECURE_NO_DEPRECATE. See _disibledevent="file:///d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm">file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
      1>BaseClasses - 10 error(s), 2 warning(s)
      ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

    有错就改啦！双击1>.wxdebug.cpp(567) : error C4430: missing type specifier - int assumed. Note: C++ does not support default-int 跳到出错位置。

    你会见到出错语句：static g_dwLastRefresh = 0;

    静态类型变量有这么定义的吗？总得给个类型吧！将其改为：static DWORD g_dwLastRefresh = 0;为什么类型指定为DWORD？看程序中的语句就明白了——保证相同类型的变量进行运算。

    再次调试运行：

      1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
      1>Compiling...
      1>winutil.cpp
      1>.winutil.cpp(2104) : error C2065: 'Count' : undeclared identifier
      1>.winutil.cpp(2106) : error C2228: left of '.peRed' must have class/struct/union
      1>.winutil.cpp(2106) : error C2228: left of '.peRed' must have class/struct/union
      1>.winutil.cpp(2107) : error C2228: left of '.peGreen' must have class/struct/union
      1>.winutil.cpp(2107) : error C2228: left of '.peGreen' must have class/struct/union
      1>.winutil.cpp(2108) : error C2228: left of '.peBlue' must have class/struct/union
      1>.winutil.cpp(2108) : error C2228: left of '.peBlue' must have class/struct/union
      1>.winutil.cpp(2124) : error C2228: left of '.peFlags' must have class/struct/union
      1>outputq.cpp
      1>.outputq.cpp(664) : error C2065: 'iDone' : undeclared identifier
      1>Generating Code...
      1>Build log was saved at "file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
      1>BaseClasses - 9 error(s), 0 warning(s)
      ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

     错误少了一个哦！继续努力！双击1>.winutil.cpp(2104) : error C2065: 'Count' : undeclared identifier跳到出错位置。

     你会见到出错语句：for (Count = 0;Count < Result;Count++) {

     Count没有定义？看该语句上面的语句：

     for (UINT Count = 0;Count < Result;Count++) {
       if (SystemEntries[Count].peRed != pEntry[Count].peRed ||
 SystemEntries[Count].peGreen != pEntry[Count].peGreen ||
          SystemEntries[Count].peBlue != pEntry[Count].peBlue) {
               bIdentityPalette = FALSE;
            }
       }

        // And likewise compare against the last ten entries

       Result = GetSystemPaletteEntries(hdc,PalHiStart,PalLoCount,SystemEntries);

       看到了吧！Count是在循环体内定义的变量，出了循环之后就“生命”over了。所以将它定义到外面去。将以上的语句改为：

        UINT Count = 0;

        for (Count = 0;Count < Result;Count++) {
            if (SystemEntries[Count].peRed != pEntry[Count].peRed ||
                  SystemEntries[Count].peGreen != pEntry[Count].peGreen ||
                    SystemEntries[Count].peBlue != pEntry[Count].peBlue) {
                        bIdentityPalette = FALSE;
            }
         }

        // And likewise compare against the last ten entries

      Result = GetSystemPaletteEntries(hdc,PalHiStart,PalLoCount,SystemEntries);

      再次调试运行：

        1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
        1>Compiling...
        1>winutil.cpp
        1>outputq.cpp
        1>.outputq.cpp(664) : error C2065: 'iDone' : undeclared identifier
        1>Generating Code...
        1>Build log was saved at "file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
        1>BaseClasses - 1 error(s), 0 warning(s)
        ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

       不错哦！错误剩下一个了！再改，双击1>.outputq.cpp(664) : error C2065: 'iDone' : undeclared identifier
跳到出错位置。

       你会见到出错语句：*nSamplesProcessed = iDone - iLost;

       iDone没有定义？OK，继续看它上面的语句：

       //  Loop processing the samples in batches

       LONG iLost = 0;
       for (long iDone = 0;
             iDone < nSamples || (m_nBatched != 0 && m_bSendAnyway);
            ) {

       // ...

        同样的，将iDone的定义放到循环体的外面去，改为：

       //  Loop processing the samples in batches

       LONG iLost = 0;

       long iDone = 0;
       for (iDone = 0;
             iDone < nSamples || (m_nBatched != 0 && m_bSendAnyway);
            ) {

        // ...

       改完了以后，再次调试运行：

      1>------ Build started: Project: BaseClasses, Configuration: Debug Unicode Win32 ------
      1>Compiling...
      1>outputq.cpp
      1>Creating library...
      1>Build log was saved at "file://d:DXSDKSamplesC++DirectShowBaseClassesDebug_UnicodeBuildLog.htm"
      1>BaseClasses - 0 error(s), 0 warning(s)
      ========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========

       总算见到succeeded了，呵呵！你调出来了吗？

 

转引结束 原文地址如下：http://blog.chinaunix.net/u1/33950/showart_716130.html

上面的转引，讲述了如何编译出我们需要的库文件Strmbasd.lib，按照转引上的方法生成了这个库文件后，在VC6.0的Project->Setting->Link
添加Strmbasd.lib winmm.lib

 

 

以上准备结束之后，就可以编译我们的DirectShow程序啦~~~

一个参考源代码，可以用来测试

#include <Dshow.h>
#include <Streams.h>
#include <stdio.h>

void main(void)
{
    IGraphBuilder *pGraph = NULL;
    IMediaControl *pControl = NULL;
    IMediaEvent   *pEvent = NULL;

    // Initialize the COM library.
    HRESULT hr = CoInitialize(NULL);
    if (FAILED(hr))
    {
        printf("ERROR - Could not initialize COM library");
        return;
    }

    // Create the filter graph manager and query for interfaces.
    hr = CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
                        IID_IGraphBuilder, (void **)&pGraph);
    if (FAILED(hr))
    {
        printf("ERROR - Could not create the Filter Graph Manager.");
        return;
    }

    hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
    hr = pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);

    // Build the graph. IMPORTANT: Change this string to a file on your system.
//    hr = pGraph->RenderFile(L"C:\\Example.avi", NULL);
    hr = pGraph->RenderFile(L"E:\\DX90SDK\\Samples\\Media\\chicken.wmv", NULL); // 打开一个媒体文件
    if (SUCCEEDED(hr))
    {
        // Run the graph.
        hr = pControl->Run();
        if (SUCCEEDED(hr))
        {
            // Wait for completion.
            long evCode;
            pEvent->WaitForCompletion(INFINITE, &evCode);

            // Note: Do not use INFINITE in a real application, because it
            // can block indefinitely.
        }
    }
    pControl->Release();
    pEvent->Release();
    pGraph->Release();
    CoUninitialize();
}

 

完。

 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/out_of_memory/archive/2008/12/10/3486726.aspx