'des' 카테고리의 글 목록

동영상을 저장할 때

2008. 11. 21. 14:35

동영상을 저장할 때
//////////////////////////////////////////////////////////////////
HRESULT hr = S_OK;
hr = pRenderEngine.CoCreateInstance(CLSID_RenderEngine);
IGraphBuilder *pGraph = NULL;
ICaptureGraphBuilder2 *pBuilder = NULL;
IMediaControl *pControl = NULL;
IMediaEvent *pEvent = NULL;

// Build the graph.
hr = pRenderEngine->SetTimelineObject(pMainTL);
hr = pRenderEngine->ConnectFrontEnd( );
hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC,
IID_ICaptureGraphBuilder2, (void **)&pBuilder);

// Get a pointer to the graph front end.
hr = pRenderEngine->GetFilterGraph(&pGraph);
hr = pBuilder->SetFiltergraph(pGraph);

// Create the file-writing section.
WCHAR wstring[1024];
ZeroMemory(wstring, sizeof(wstring));
mbstowcs(wstring, (LPCTSTR)createFileName, createFileName.GetLength());

IBaseFilter *pMux;
hr = pBuilder->SetOutputFileName(&MEDIASUBTYPE_Avi, wstring, &pMux, NULL);
long NumGroups;
hr = pMainTL->GetGroupCount(&NumGroups);

// Loop through the groups and get the output pins.
for (int i = 0; i < NumGroups; i++)
{
IPin *pPin;
if (pRenderEngine->GetGroupOutputPin(i, &pPin) == S_OK)
{
hr = pBuilder->RenderStream(NULL, NULL, pPin, NULL, pMux);
pPin->Release();
}
}

// Run the graph.
hr = pGraph->QueryInterface(IID_IMediaControl, (void **)&pControl);
hr = pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);
hr = pControl->Run();

long evCode;
hr = pEvent->WaitForCompletion(INFINITE, &evCode);
hr = pControl->Stop();

// Clean up.
if (pMux)
{
pMux->Release();
}

pEvent->Release();
pControl->Release();
pGraph->Release();
pBuilder->Release();

Posted by 바람도리

:

statics

des

2008. 11. 21. 14:22

<< 다음은, 제가 Timeline에 Group, Composition, Track, Source를 추가하기 위해서, 만들어놓은 static 함수입니다. 읽어보시고 도움이 되시는 분이 있으면 좋겠습니다.>>

//---------------------------------------------------------------------------------------------------------------------
//----- Static Function -----------------------------------------------------------------------------------------------
//---------------------------------------------------------------------------------------------------------------------

HRESULT CTimelineMgr::CreateTimelineGroup(IAMTimeline* pTimeline, IAMTimelineObj** ppGroupObj, IAMTimelineGroup** ppGroup)
{
        HRESULT hResult = S_OK;

        if (pTimeline == NULL) return E_INVALIDARG;
        if (ppGroup == NULL) return E_POINTER;

        hResult = pTimeline->CreateEmptyNode(&(*ppGroupObj), TIMELINE_MAJOR_TYPE_GROUP);
        if (SUCCEEDED(hResult))
        {
                hResult = (*ppGroupObj)->QueryInterface(IID_IAMTimelineGroup, (void**)ppGroup);
        }

        return hResult;
}

HRESULT CTimelineMgr::CreateTimelineComposition(IAMTimeline* pTimeline, IAMTimelineGroup* pGroup, IAMTimelineComp** ppComposition)
{
        HRESULT hResult = S_OK;

        if (pTimeline == NULL) return E_INVALIDARG;
        if (pGroup == NULL) return E_INVALIDARG;
        if (ppComposition == NULL) return E_POINTER;

        CComPtr<IAMTimelineObj>        pComposition;

        hResult = pTimeline->CreateEmptyNode(&pComposition, TIMELINE_MAJOR_TYPE_COMPOSITE);
        if (SUCCEEDED(hResult))
        {
                CComQIPtr<IAMTimelineComp>        pGroupComp(pGroup);
                hResult = pGroupComp->VTrackInsBefore(pComposition, -1);
                if (SUCCEEDED(hResult))
                {
                        hResult = pComposition->QueryInterface(IID_IAMTimelineComp, (void**)ppComposition);
                }
        }

        return hResult;
}

HRESULT CTimelineMgr::CreateTimelineTrack(IAMTimeline* pTimeline, IAMTimelineComp* pComposition, IAMTimelineTrack** ppTrack)
{
        HRESULT hResult = S_OK;

        if (pTimeline == NULL) return E_INVALIDARG;
        if (pComposition == NULL) return E_INVALIDARG;
        if (ppTrack == NULL) return E_POINTER;

        CComPtr<IAMTimelineObj>        pTrack;

        hResult = pTimeline->CreateEmptyNode(&pTrack, TIMELINE_MAJOR_TYPE_TRACK);
        if (SUCCEEDED(hResult))
        {
                hResult = pComposition->VTrackInsBefore(pTrack, -1);
                if (SUCCEEDED(hResult))
                {
                        hResult = pTrack->QueryInterface(IID_IAMTimelineTrack, (void**)ppTrack);
                }
        }

        return hResult;
}

HRESULT CTimelineMgr::CreateTimelineSource(IAMTimeline* pTimeline, IAMTimelineTrack* pTrack, IAMTimelineObj** ppSource, REFERENCE_TIME rtClipStart, REFERENCE_TIME rtClipStop, int nStretchMode)
{
        HRESULT hResult = S_OK;

        if (pTimeline == NULL) return E_INVALIDARG;
        if (pTrack == NULL) return E_INVALIDARG;
        if (ppSource == NULL) return E_POINTER;

        hResult = pTimeline->CreateEmptyNode(ppSource, TIMELINE_MAJOR_TYPE_SOURCE);
        if (SUCCEEDED(hResult))
        {
                (*ppSource)->SetStartStop(rtClipStart, rtClipStop);
                CComQIPtr<IAMTimelineSrc> pSource(*ppSource);
                if (pSource == NULL) return E_FAIL;

                hResult = pSource->SetStretchMode(nStretchMode);
                if (SUCCEEDED(hResult))
                {
                        hResult = pTrack->SrcAdd(*ppSource);
                }
        }

        return hResult;
}

Posted by 바람도리

:

des

2008. 11. 19. 19:22

jotacu...@gmail.com

프로필 보기

추가 옵션 11월19일, 오전6시07분

On 18 nov, 09:56, Rangaswamy <Rangasw...@discussions.microsoft.com>

wrote:

> Dear sir,

> I am working on the Directshow Editing Services I have added the video clip

> to a time line and I can save it as a asf file but by default its resolution

> is 320*240 but i need to change it to a higher resolution like 1024*768 .

> Thanking you.

> yours sincerely,

> Rangaswamy

Try this: (no error check for clarity)

HRESULT hr;

//Add a Video Group to the time line

IAMTimelineGroup *pGroup=NULL;

IAMTimelineObj *pGroupObj=NULL;

hr=pTL->CreateEmptyNode(&pGroupObj,TIMELINE_MAJOR_TYPE_GROUP);

hr=pGroupObj->QueryInterface(IID_IAMTimelineGroup,(void**)&pGroup);

//set the media type to Video.

AM_MEDIA_TYPE mtGroup;

ZeroMemory(&mtGroup, sizeof(AM_MEDIA_TYPE));

mtGroup.majortype=MEDIATYPE_Video;

mtGroup.subtype=MEDIASUBTYPE_RGB24;//Deppends on the media sub type

you decide

//

mtGroup.pbFormat=(BYTE*)CoTaskMemAlloc(sizeof(VIDEOINFOHEADER));

if(mtGroup.pbFormat==NULL)

{

return E_OUTOFMEMORY;

}

VIDEOINFOHEADER *pVideoInfoHeader=(VIDEOINFOHEADER*)mtGroup.pbFormat;

ZeroMemory(pVideoInfoHeader,sizeof(VIDEOINFOHEADER));

pVideoInfoHeader->bmiHeader.biBitCount=24;//for RGB 24

pVideoInfoHeader->bmiHeader.biWidth=1024;//The resolution you want

pVideoInfoHeader->bmiHeader.biHeight=768;//Same as before

pVideoInfoHeader->bmiHeader.biPlanes=1;

pVideoInfoHeader->bmiHeader.biSize=sizeof(BITMAPINFOHEADER);

pVideoInfoHeader->bmiHeader.biSizeImage=DIBSIZE(pVideoInfoHeader-

>bmiHeader);

//set the format´s type and size

mtGroup.formattype=FORMAT_VideoInfo;

mtGroup.cbFormat=sizeof(VIDEOINFOHEADER);

//Set the sample size

mtGroup.bFixedSizeSamples=TRUE;

mtGroup.lSampleSize=DIBSIZE(pVideoInfoHeader->bmiHeader);

hr=pGroup->SetMediaType(&mtGroup);

//Release

CoTaskMemFree(mtGroup.pbFormat);

hr=pTL->AddGroup(pGroupObj);

pGroupObj->Release();

//From here you would have to add a track, a clip...whatever.

Hope it helps...

Posted by 바람도리

:

일	월	화	수	목	금	토
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

바람도리이야기

'des'에 해당되는 글 3건

동영상을 저장할 때

statics

des

공지사항

카테고리

최근에 올라온 글

최근에 달린 댓글

태그목록

글 보관함

달력

링크

티스토리툴바