HRESULT CStreamSwitcherOutputPin::DecideBufferSize(IMemAllocator* pAllocator, ALLOCATOR_PROPERTIES* pProperties)
{
CStreamSwitcherInputPin* pIn = (static_cast<CStreamSwitcherFilter*>(m_pFilter))->GetInputPin();
if (!pIn || !pIn->IsConnected()) {
return E_UNEXPECTED;
}
CComPtr<IMemAllocator> pAllocatorIn;
pIn->GetAllocator(&pAllocatorIn);
if (!pAllocatorIn) {
return E_UNEXPECTED;
}
HRESULT hr;
if (FAILED(hr = pAllocatorIn->GetProperties(pProperties))) {
return hr;
}
if (pProperties->cBuffers < 8 && pIn->CurrentMediaType().majortype == MEDIATYPE_Audio) {
pProperties->cBuffers = 8;
}
ALLOCATOR_PROPERTIES Actual;
if (FAILED(hr = pAllocator->SetProperties(pProperties, &Actual))) {
return hr;
}
return (pProperties->cBuffers > Actual.cBuffers || pProperties->cbBuffer > Actual.cbBuffer
? E_FAIL
: NOERROR);
}
HRESULT CStreamSwitcherOutputPin::DecideBufferSize(IMemAllocator* pAllocator, ALLOCATOR_PROPERTIES* pProperties)
{
CStreamSwitcherInputPin* pIn = ((CStreamSwitcherFilter*)m_pFilter)->GetInputPin();
if(!pIn || !pIn->IsConnected()) {
SVP_LogMsg5(L"DecideBufferSize if(!pIn || !pIn->IsConnected()) {");
return E_UNEXPECTED;
}
CComPtr<IMemAllocator> pAllocatorIn;
pIn->GetAllocator(&pAllocatorIn);
if(!pAllocatorIn){
SVP_LogMsg5(L"DecideBufferSize pIn->GetAllocator(&pAllocatorIn);");
return E_UNEXPECTED;
}
HRESULT hr;
if(FAILED(hr = pAllocatorIn->GetProperties(pProperties))) {
SVP_LogMsg5(L"DecideBufferSize if(FAILED(hr = pAllocatorIn->GetProperties(pProperties))) {");
return hr;
}
if( pIn->CurrentMediaType().majortype == MEDIATYPE_Audio){
if(pProperties->cBuffers < 8)
pProperties->cBuffers = 8;
WAVEFORMATEX* wfe = (WAVEFORMATEX*)pIn->CurrentMediaType().pbFormat;
pProperties->cbBuffer = (long) ((__int64) pProperties->cbBuffer * 8 / min( wfe->nChannels ,8 ) *
96000 / min( wfe->nSamplesPerSec, 96000));
}
ALLOCATOR_PROPERTIES Actual;
if(FAILED(hr = pAllocator->SetProperties(pProperties, &Actual))) {
SVP_LogMsg5(L"DecideBufferSize if(FAILED(hr = pAllocator->SetProperties(pProperties, &Actual))) {");
return hr;
}
hr = (pProperties->cBuffers > Actual.cBuffers || pProperties->cbBuffer > Actual.cbBuffer
? E_FAIL
: NOERROR);
SVP_LogMsg5(L"DecideBufferSize %d %d %d %d %x",pProperties->cBuffers ,Actual.cBuffers , pProperties->cbBuffer , Actual.cbBuffer , hr );
return hr;
}