MEDIA ENCODER SAMPLE的问题

[gdbarry]

毕业设计写一个远程教学的软件

要实现屏幕录像好视频录像功能

用MEDIA ENCODER 9 SDK，屏幕录像没问题

用摄像头做为数据源的时候，运行到

hr = pEncoder->PrepareToEncode(VARIANT_TRUE);

出现堆栈错误，中断了，用RELEASE发布可以过

但是到，hr = pEncoder->Start();
返回错误代码
0xC00D1B71

SDK文档没说明，GOOGLE给出unsupported file formats or invalid files.

调试了很久也没解决。。。救救我

还有个问题是调用Windows Media Encoder UI的时候

加入WMEncSourcesPage的时候就出错。。。

代码都是SDK给的SAMPLE，也是简练到不能再简了。。HELP

// media5.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"

#include <windows.h>
#include <atlbase.h>
#include <comdef.h>
#include "C:\WMSDK\WMEncSDK9\include\wmencode.h"
#include "C:\WMSDK\WMEncSDK9\include\wmdevctl.h"
#include <conio.h>    // for kbhit()



int _tmain(int argc, _TCHAR* argv[])
{

   HRESULT hr;
    IWMEncoder2* pEncoder;
    IWMEncSourceGroupCollection* pSrcGrpColl;
    IWMEncSourceGroup* pSrcGrp;
    IWMEncSourceGroup2* pSrcGrp2;
    IWMEncSource* pSrcAud;
    IWMEncSource* pSrcVid;
    IWMEncFile* pFile;
    IWMEncProfileCollection* pProColl;
    IWMEncProfile* pPro;
    IWMEncDeviceControlCollection* pDCColl;
    IWMEncDeviceControl* pDControl;
    IWMEncDeviceControlPlugin* pDCPlugin;
    IWMEncEditDecisionList*  pEDList;
    IWMEncEditDecisionData*  pEDData;

    CComBSTR bstrName = NULL;

    long lCount;
    int i;

    // Initialize the COM library and retrieve a pointer
    // to an IWMEncoder interface.
    hr = CoInitialize(NULL);
    if ( SUCCEEDED( hr ) )
    {
        hr = CoCreateInstance(CLSID_WMEncoder,
            NULL,
            CLSCTX_INPROC_SERVER,
            IID_IWMEncoder2,
            (void**) &pEncoder);
    }

    // Retrieve the source group collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_SourceGroupCollection(&pSrcGrpColl);
    }

    // Encode to a file.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_File(&pFile);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pFile->put_LocalFileName(CComBSTR("C:\\DeviceOutput2.wmv"));
    }

    // Add a source group to the collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrpColl->Add(CComBSTR("SG_1"), &pSrcGrp);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp->QueryInterface(IID_IWMEncSourceGroup2, (void**)&pSrcGrp2);
    }

    // Add a video and audio source to the source group.

    if ( SUCCEEDED( hr ) )
    {
       // hr = pSrcGrp->AddSource(WMENC_AUDIO, &pSrcAud);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp->AddSource(WMENC_VIDEO, &pSrcVid);
    }

    // Add the device as the audio source and video source.

    if ( SUCCEEDED( hr ) )
    {
        //hr = pSrcAud->SetInput(CComBSTR("Device://Realtek AC97 Audio"));
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcVid->SetInput(CComBSTR("Device://USB PC Camera 301P"));
    }

    // Choose a profile from the collection.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->get_ProfileCollection(&pProColl);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pProColl->get_Count(&lCount);
    }
    for (i=0; i<lCount; i++)
    {
        if ( SUCCEEDED( hr ) )
        {
            hr = pProColl->Item(i, &pPro);
        }
        if ( SUCCEEDED( hr ) )
        {
            hr = pPro->get_Name(&bstrName);
        }
        if (_wcsicmp(bstrName,CComBSTR("Windows Media Video 8 for Local Area Network (384 Kbps)"))==0)
        {
            // Set the profile in the source group.
            if ( SUCCEEDED( hr ) )
            {
                hr = pSrcGrp->put_Profile(CComVariant(pPro));
            }
            break;
        }
    }
    // Retrieve the device control collection, then add a device to it.
    if ( SUCCEEDED( hr ) )
    {
        hr = pSrcGrp2->get_DeviceControlCollection(&pDCColl);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pDCColl->Add(&pDControl);
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pDControl->SetInput(CComBSTR("DeviceControl://USB PC Camera 301P"));
    }

    // Initialize the encoding session.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->PrepareToEncode(VARIANT_TRUE);
    }

    // Get the plug-in from the device.
    if ( SUCCEEDED( hr ) )
    {
        hr = pDControl->GetDeviceControlPlugin((IUnknown**)&pDCPlugin);
    } 

    // Retrieve an IWMEncEditDecisionList interface from the device control plug-in.

    if ( SUCCEEDED( hr ) )
    {
        hr = pDCPlugin->get_EditDecisionList(&pEDList);
    }

    // Create an EDL entry.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEDList->Add(&pEDData);
    }

    // Add attributes to the EDL entry specifying mark-in, mark-out,
    // tape ID, and description information.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEDData->Add(CComBSTR("MarkIn"), CComVariant(262295));
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pEDData->Add(CComBSTR("MarkOut"), CComVariant(267268));
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pEDData->Add(CComBSTR("TapeID"), CComVariant("A"));
    }
    if ( SUCCEEDED( hr ) )
    {
        hr = pEDData->Add(CComBSTR("Description"), CComVariant("Scene 1"));
    }

    // Wait for the user to press a key to start encoding.
    printf("Press a key to start encoding.");

    // Wait for a key press.
    while(!kbhit())
        _asm nop;

    // Start encoding.
    if ( SUCCEEDED( hr ) )
    {
        hr = pEncoder->Start();

        // Stop the encoding process.
        if ( SUCCEEDED( hr ) )
        {
            // Wait for the user to press a key to stop encoding.
            printf("Press a key to stop encoding.");

            // Wait for a key press.
            while(!kbhit())
                _asm nop;

            hr = pEncoder->Stop();
        }
		
    }
	printf("\n%x",hr);

    // Release pointers.
    if ( pSrcGrpColl )
    {
        pSrcGrpColl->Release();
        pSrcGrpColl = NULL;
    }
    if ( pSrcGrp )
    {
        pSrcGrp->Release();
        pSrcGrp = NULL;
    }
    if ( pSrcGrp2 )
    {
        pSrcGrp2->Release();
        pSrcGrp2 = NULL;
    }
    //if ( pSrcAud )
    //{
    //    pSrcAud->Release();
    //    pSrcAud = NULL;
    //}
    if ( pSrcVid )
    {
        pSrcVid->Release();
        pSrcVid = NULL;
    }
    if ( pFile )
    {
        pFile->Release();
        pFile = NULL;
    }
    if ( pProColl )
    {
        pProColl->Release();
        pProColl = NULL;
    }
    if ( pPro )
    {
        pPro->Release();
        pPro = NULL;
    }
    if ( pDCColl )
    {
        pDCColl->Release();
        pDCColl = NULL;
    }
    if ( pDControl )
    {
        pDControl->Release();
        pDControl = NULL;
    }
    if ( pDCPlugin )
    {
        pDCPlugin->Release();
        pDCPlugin = NULL;
    }
    if ( pEDList )
    {
        pEDList->Release();
        pEDList = NULL;
    }
    if ( pEDData )
    {
        pEDData->Release();
        pEDData = NULL;
    }
    if ( pEncoder )
    {
        pEncoder->Release();
        pEncoder = NULL;
    }

	return 0;
}

[gdbarry]

我顶.... ：（

[meiZiNick]

不知,帮顶

[vision_sky]

解决了吗?