public override int DecideBufferSize(ref IMemAllocatorImpl pAlloc, ref AllocatorProperties prop)
{
Console.WriteLine("DecideBufferSize");
if (!Output.IsConnected) return VFW_E_NOT_CONNECTED;
if (Output.CurrentMediaType.majorType != MediaType.Video) return VFW_E_INVALIDMEDIATYPE;
AllocatorProperties _actual = new AllocatorProperties();
BitmapInfoHeader _bmi = (BitmapInfoHeader)Output.CurrentMediaType;
if (_bmi == null) return VFW_E_INVALIDMEDIATYPE;
prop.cbBuffer = _bmi.GetBitmapSize();
if (prop.cbBuffer < _bmi.ImageSize)
{
prop.cbBuffer = _bmi.ImageSize;
}
prop.cBuffers = 1;
int hr = pAlloc.SetProperties(prop, _actual);
return hr;
}
public override int DecideBufferSize(ref IMemAllocatorImpl pAlloc, ref AllocatorProperties pProperties)
{
if (!IsConnected) return VFW_E_NOT_CONNECTED;
AllocatorProperties _actual = new AllocatorProperties();
HRESULT hr = (HRESULT)GetAllocatorProperties(_actual);
if (SUCCEEDED(hr) && _actual.cBuffers <= pProperties.cBuffers && _actual.cbBuffer <= pProperties.cbBuffer && _actual.cbAlign == pProperties.cbAlign)
{
AllocatorProperties Actual = new AllocatorProperties();
hr = (HRESULT)pAlloc.SetProperties(pProperties, Actual);
if (SUCCEEDED(hr))
{
pProperties.cbAlign = Actual.cbAlign;
pProperties.cbBuffer = Actual.cbBuffer;
pProperties.cbPrefix = Actual.cbPrefix;
pProperties.cBuffers = Actual.cBuffers;
}
}
return (m_Filter as VirtualCamFilter).DecideBufferSize(ref pAlloc, ref pProperties);
}
public override int DecideBufferSize(ref IMemAllocatorImpl pAlloc, ref AllocatorProperties pProperties)
{
if (!IsConnected) return VFW_E_NOT_CONNECTED;
var actual = new AllocatorProperties();
var hr = (HRESULT)GetAllocatorProperties(actual);
if (SUCCEEDED(hr) && actual.cBuffers <= pProperties.cBuffers && actual.cbBuffer <= pProperties.cbBuffer && actual.cbAlign == pProperties.cbAlign)
{
actual = new AllocatorProperties();
hr = (HRESULT)pAlloc.SetProperties(pProperties, actual);
if (SUCCEEDED(hr))
{
pProperties.cbAlign = actual.cbAlign;
pProperties.cbBuffer = actual.cbBuffer;
pProperties.cbPrefix = actual.cbPrefix;
pProperties.cBuffers = actual.cBuffers;
}
}
return CamFilter.DecideBufferSize(ref pAlloc, ref pProperties);
}
public int DecideBufferSize(ref IMemAllocatorImpl pAlloc, ref AllocatorProperties prop)
{
AllocatorProperties _actual = new AllocatorProperties();
BitmapInfoHeader _bmi = (BitmapInfoHeader)Pins[0].CurrentMediaType;
prop.cbBuffer = _bmi.GetBitmapSize();
if (prop.cbBuffer < _bmi.ImageSize)
{
prop.cbBuffer = _bmi.ImageSize;
}
if (prop.cbBuffer < m_bmi.bmiHeader.ImageSize)
{
prop.cbBuffer = m_bmi.bmiHeader.ImageSize;
}
prop.cBuffers = 1;
prop.cbAlign = 1;
prop.cbPrefix = 0;
int hr = pAlloc.SetProperties(prop, _actual);
return hr;
}