緣起： 朝哥安排我整個游戲內播放視頻的功能，那我就玩玩dshow好了
《巨人》的是xoyojank寫的
第一個DirectShow程序 DirectShow播放視頻環(huán)境配置：
用的是Platform SDK for Windows Server 2003 R2，安裝后開始菜單如下
VS2005里面的設置
Include
Lib
小試牛刀：
寫個最簡單的程序爽下，見sdk文檔，位置如下
項目配置：
鏈接Strmiids.lib和Quartz.lib
多線程調試 DLL (/MDd)
截圖：
NND,截圖截出來是黑的，why？
源碼：
#include <dshow.h>
INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT )
{
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 -1;
}
// 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 -1;
}
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.
// F:\\Program Files\\NVIDIA Corporation\\SDK 9.5\\MEDIA\\textures\\video\\nvidia2.wmv
// C:\\Program Files\\Microsoft Platform SDK for Windows Server 2003 R2\\Samples\\Multimedia\\DirectShow\\Media\\Video\\ruby.avi
hr = pGraph->RenderFile(L"F:\\Program Files\\NVIDIA Corporation\\SDK 9.5\\MEDIA\\textures\\video\\nvidia2.wmv", NULL);
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();
return 0;
}
posted on 2008-12-22 23:52
七星重劍 閱讀(1127)
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IDE -- visual c++