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2008年05月30日 星期五 14:56
bool CDXGraph::SetFullScreen(BOOL inEnabled)
{
if (mVideoWindow)
{
HRESULT hr = mVideoWindow->put_FullScreenMode(inEnabled ? OATRUE : OAFALSE);
return SUCCEEDED(hr);
}
return false;
}
bool CDXGraph::GetFullScreen(void)
{
if (mVideoWindow)
{
long fullScreenMode = OAFALSE;
mVideoWindow->get_FullScreenMode(&fullScreenMode);
return (fullScreenMode == OATRUE);
}
return false;
}
// IMediaSeeking features
bool CDXGraph::GetCurrentPosition(double * outPosition)
{
if (mSeeking)
{
__int64 position = 0;
if (SUCCEEDED(mSeeking->GetCurrentPosition(&position)))
{
*outPosition = ((double)position) / 10000000.;
return true;
}
}
return false;
}
bool CDXGraph::GetStopPosition(double * outPosition)
{
if (mSeeking)
{
__int64 position = 0;
if (SUCCEEDED(mSeeking->GetStopPosition(&position)))
{
*outPosition = ((double)position) / 10000000.;
return true;
}
}
return false;
}
bool CDXGraph::SetCurrentPosition(double inPosition)
{
if (mSeeking)
{
__int64 one = 10000000;
__int64 position = (__int64)(one * inPosition);
HRESULT hr = mSeeking->SetPositions(&position, AM_SEEKING_AbsolutePositioning | AM_SEEKING_SeekToKeyFrame,
0, AM_SEEKING_NoPositioning);
return SUCCEEDED(hr);
}
return false;
}
bool CDXGraph::SetStartStopPosition(double inStart, double inStop)
{
if (mSeeking)
{
__int64 one = 10000000;
__int64 startPos = (__int64)(one * inStart);
__int64 stopPos = (__int64)(one * inStop);
HRESULT hr = mSeeking->SetPositions(&startPos, AM_SEEKING_AbsolutePositioning | AM_SEEKING_SeekToKeyFrame,
&stopPos, AM_SEEKING_AbsolutePositioning | AM_SEEKING_SeekToKeyFrame);
return SUCCEEDED(hr);
}
return false;
}
bool CDXGraph::GetDuration(double * outDuration)
{
if (mSeeking)
{
__int64 length = 0;
if (SUCCEEDED(mSeeking->GetDuration(&length)))
{
*outDuration = ((double)length) / 10000000.;
return true;
}
}
return false;
}
bool CDXGraph::SetPlaybackRate(double inRate)
{
if (mSeeking)
{
if (SUCCEEDED(mSeeking->SetRate(inRate)))
{
return true;
}
}
return false;
}
// Attention: range from -10000 to 0, and 0 is FULL_VOLUME.
bool CDXGraph::SetAudioVolume(long inVolume)
{
if (mBasicAudio)
{
HRESULT hr = mBasicAudio->put_Volume(inVolume);
return SUCCEEDED(hr);
}
return false;
}
long CDXGraph::GetAudioVolume(void)
{
long volume = 0;
if (mBasicAudio)
{
mBasicAudio->get_Volume(&volume);
}
return volume;
}
// Attention: range from -10000(left) to 10000(right), and 0 is both.
bool CDXGraph::SetAudioBalance(long inBalance)
{
if (mBasicAudio)
{
HRESULT hr = mBasicAudio->put_Balance(inBalance);
return SUCCEEDED(hr);
}
return false;
}
long CDXGraph::GetAudioBalance(void)
{
long balance = 0;
if (mBasicAudio)
{
mBasicAudio->get_Balance(&balance);
}
return balance;
}
bool CDXGraph::RenderFile(const char * inFile)
{
if (mGraph)
{
WCHAR szFilePath[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, inFile, -1, szFilePath, MAX_PATH);
if (SUCCEEDED(mGraph->RenderFile(szFilePath, NULL)))
{
return true;
}
}
return false;
}
bool CDXGraph::SnapshotBitmap(const char * outFile)
{
if (mBasicVideo)
{
long bitmapSize = 0;
if (SUCCEEDED(mBasicVideo->GetCurrentImage(&bitmapSize, 0)))
{
bool pass = false;
unsigned char * buffer = new unsigned char[bitmapSize];
if (SUCCEEDED(mBasicVideo->GetCurrentImage(&bitmapSize, (long *)buffer)))
{
BITMAPFILEHEADER hdr;
LPBITMAPINFOHEADER lpbi;
lpbi = (LPBITMAPINFOHEADER)buffer;
int nColors = 1 << lpbi->biBitCount;
if (nColors > 256)
nColors = 0;
hdr.bfType = ((WORD) ('M' << 8) | 'B'); //always is "BM"
hdr.bfSize = bitmapSize + sizeof( hdr );
hdr.bfReserved1 = 0;
hdr.bfReserved2 = 0;
hdr.bfOffBits = (DWORD) (sizeof(BITMAPFILEHEADER) + lpbi->biSize +
nColors * sizeof(RGBQUAD));
CFile bitmapFile(outFile, CFile::modeReadWrite | CFile::modeCreate | CFile::typeBinary);
bitmapFile.Write(&hdr, sizeof(BITMAPFILEHEADER));
bitmapFile.Write(buffer, bitmapSize);
bitmapFile.Close();
pass = true;
}
delete [] buffer;
return pass;
}
}
return false;
}
//////////////////////// For GraphEdit Dubug purpose /////////////////////////////
void CDXGraph::AddToObjectTable(void)
{
IMoniker * pMoniker = 0;
IRunningObjectTable * objectTable = 0;
if (SUCCEEDED(GetRunningObjectTable(0, &objectTable)))
{
WCHAR wsz[256];
wsprintfW(wsz, L"FilterGraph %08p pid %08x", (DWORD_PTR)mGraph, GetCurrentProcessId());
HRESULT hr = CreateItemMoniker(L"!", wsz, &pMoniker);
if (SUCCEEDED(hr))
{
hr = objectTable->Register(0, mGraph, pMoniker, &mObjectTableEntry);
pMoniker->Release();
}
objectTable->Release();
}
}
void CDXGraph::RemoveFromObjectTable(void)
{
IRunningObjectTable * objectTable = 0;
if (SUCCEEDED(GetRunningObjectTable(0, &objectTable)))
{
objectTable->Revoke(mObjectTableEntry);
objectTable->Release();
mObjectTableEntry = 0;
}
} |
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