long video_get_duration(int id) {
get_videor(videoStruct, id, -1);
IMediaSeeking* pSeek;
HRESULT hr = videoStruct->pGraph->QueryInterface(IID_IMediaSeeking, (void**)&pSeek);
DWORD dwCap = 0;
hr = pSeek->GetCapabilities(&dwCap);
long long duration = 0;
if (AM_SEEKING_CanSeekAbsolute & dwCap) //TODO: This if check might not be needed
{
hr = pSeek->GetDuration(&duration);
}
pSeek->Release();
return duration;
}
int main(int argc, char* argv[])
{
ICaptureGraphBuilder2 *pCaptureGraphBuilder = NULL;
IGraphBuilder *pGraphBuilder = NULL;
IBaseFilter *pSource = NULL;
IBaseFilter *pMux = NULL;
IBaseFilter *pVideoCompressor = NULL;
IBaseFilter *pAudioCompressor = NULL;
IAMStreamConfig *pAMStreamConfig = NULL;
IAMVideoCompression *pAMVideoCompression = NULL;
IMediaControl *pControl = NULL;
IMediaSeeking *pSeek = NULL;
IMediaEvent *pEvent = NULL;
HRESULT hr;
DWORD pdwRegister=0;
CoInitialize(NULL);
// Create the capture graph builder.
CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC,
IID_ICaptureGraphBuilder2, (void **)&pCaptureGraphBuilder);
// Make the rendering section of the graph.
pCaptureGraphBuilder->SetOutputFileName(
&MEDIASUBTYPE_Avi, // File type.
L"C:\\STDIUE1.avi", // File name.
&pMux, // pointer to the multiplexer.
NULL); // pointer to the file writer.
// Load the source file.
pCaptureGraphBuilder->GetFiltergraph(&pGraphBuilder);
pGraphBuilder->AddSourceFilter(L"C:\\Program Files\\Microsoft Money\\Media\\STDIUE1.avi", L"Source Filter", &pSource);
// Add the compressor filter.
CoCreateInstance(CLSID_AVICo, NULL, CLSCTX_INPROC,
IID_IBaseFilter, (void **)&pVideoCompressor);
pGraphBuilder->AddFilter(pVideoCompressor, L"Video Compressor");
// Render the video stream, through the compressor.
pCaptureGraphBuilder->RenderStream(
NULL, // Output pin category
NULL, // Media type
pSource, // Source filter
pVideoCompressor, // Compressor filter
pMux); // Sink filter (the AVI Mux)
/* CoCreateInstance(CLSID_GSM, NULL, CLSCTX_INPROC,
IID_IBaseFilter, (void **)&pAudioCompressor);
pGraphBuilder->AddFilter(pAudioCompressor, L"Audio Compressor");*/
// Render the audio stream.
pCaptureGraphBuilder->RenderStream(
NULL,
NULL,
pSource,
pAudioCompressor,
pMux);
// Compress at 100k/second data rate.
AM_MEDIA_TYPE *pmt;
pCaptureGraphBuilder->FindInterface(NULL, NULL, pVideoCompressor, IID_IAMStreamConfig, (void **)&pAMStreamConfig);
pAMStreamConfig->GetFormat(&pmt);
if (pmt->formattype == FORMAT_VideoInfo)
{
((VIDEOINFOHEADER *)(pmt->pbFormat))->dwBitRate = 100000;
pAMStreamConfig->SetFormat(pmt);
}
// Request key frames every four frames.
pAMStreamConfig->QueryInterface(IID_IAMVideoCompression, (void **)&pAMVideoCompression);
pAMVideoCompression->put_KeyFrameRate(4);
pAMVideoCompression->Release();
pAMStreamConfig->Release();
// Run the graph.
pGraphBuilder->QueryInterface(IID_IMediaControl, (void **)&pControl);
pGraphBuilder->QueryInterface(IID_IMediaEvent, (void **)&pEvent);
hr = pMux->QueryInterface(IID_IMediaSeeking, (void**)&pSeek);
pControl->Run();
printf("Recompressing... \n");
long evCode;
if (SUCCEEDED(hr))
{
REFERENCE_TIME rtTotal, rtNow = 0;
pSeek->GetDuration(&rtTotal);
while ((pEvent->WaitForCompletion(1000, &evCode)) == E_ABORT)
{
pSeek->GetCurrentPosition(&rtNow);
printf("%d%%\n", (rtNow * 100)/rtTotal);
}
pSeek->Release();
}
else // Cannot update the progress.
{
pEvent->WaitForCompletion(INFINITE, &evCode);
}
pControl->Stop();
printf("All done\n");
pSource->Release();
pMux->Release();
pVideoCompressor->Release();
pAudioCompressor->Release ();
pControl->Release();
pEvent->Release();
pCaptureGraphBuilder->Release();
pGraphBuilder->Release();
CoUninitialize();
return 0;
}
void
recChannel_t::posReaderThread(void)
{
__int64 position = 0;
__int64 duration = 0;
Sleep(1000);
while (!fControl)
{
Sleep(1000);
}
fControl->slideMoved = true;
IMediaSeeking * pSeek = NULL;
while(true)
{
int hr = pGraph->QueryInterface(IID_IMediaSeeking,(void **)&pSeek);
//read file pos and put at slicer
if (pSeek && hr == S_OK)
{
if (!fControl->play & fControl->event)
{
pControl->StopWhenReady();
fControl->event = false;
continue;
}
if (fControl->play & fControl->event)
{
pControl->Run();
fControl->event = false;
}
if (fControl->slideMoved)
{
position = fControl->m_slide.GetPos();
position *=1000000;
fControl->slideMoved = false;
pSeek->SetPositions(&position,
AM_SEEKING_AbsolutePositioning,
NULL,
AM_SEEKING_NoPositioning);
}else{
if (!duration)
{
pSeek->GetDuration(&duration);
duration /= 1000000;
fControl->m_slide.SetRangeMin(0,true);
fControl->m_slide.SetRangeMax(duration,true);
}
pSeek->GetCurrentPosition(&position);
position /= 1000000;
fControl->m_slide.SetPos(position);
}
}
pSeek->Release();
Sleep(1000);
}
}