bool Base::Open(const SoundDevice::Settings &settings)
//----------------------------------------------------
{
if(IsOpen())
{
Close();
}
m_Settings = settings;
if(m_Settings.Latency == 0.0) m_Settings.Latency = m_Caps.DefaultSettings.Latency;
if(m_Settings.UpdateInterval == 0.0) m_Settings.UpdateInterval = m_Caps.DefaultSettings.UpdateInterval;
m_Settings.Latency = Clamp(m_Settings.Latency, m_Caps.LatencyMin, m_Caps.LatencyMax);
m_Settings.UpdateInterval = Clamp(m_Settings.UpdateInterval, m_Caps.UpdateIntervalMin, m_Caps.UpdateIntervalMax);
if(m_Caps.CanChannelMapping)
{
if(m_Settings.ChannelMapping.GetNumHostChannels() == 0)
{
// default mapping
m_Settings.ChannelMapping = SoundDevice::ChannelMapping(m_Settings.Channels);
}
if(m_Settings.ChannelMapping.GetNumHostChannels() != m_Settings.Channels)
{
return false;
}
} else
{
m_Settings.ChannelMapping = SoundDevice::ChannelMapping(m_Settings.Channels);
}
m_Flags = SoundDevice::Flags();
m_DeviceUnavailableOnOpen = false;
m_BufferAttributes.Latency = m_Settings.Latency;
m_BufferAttributes.UpdateInterval = m_Settings.UpdateInterval;
m_BufferAttributes.NumBuffers = 0;
m_RequestFlags.store(0);
return InternalOpen();
}
HRESULT MediaInfo::Open(LPCWSTR uri)
{
ComPtr<IMFSourceResolver> resolver;
HRESULT hr = MFCreateSourceResolver(&resolver);
if (FAILED(hr))
return hr;
MF_OBJECT_TYPE objType = MF_OBJECT_INVALID;
ComPtr<IUnknown> punk;
hr = resolver->CreateObjectFromURL(uri, MF_RESOLUTION_MEDIASOURCE, NULL, &objType, &punk);
if (FAILED(hr))
return hr;
if (objType != MF_OBJECT_MEDIASOURCE)
return E_FAIL;
return InternalOpen(punk.Get());
}
HRESULT MediaInfo::Open(IMFByteStream* stream)
{
ComPtr<IMFSourceResolver> resolver;
HRESULT hr = MFCreateSourceResolver(&resolver);
if (FAILED(hr))
return hr;
MF_OBJECT_TYPE objType = MF_OBJECT_INVALID;
ComPtr<IUnknown> punk;
hr = resolver->CreateObjectFromByteStream(stream, NULL,
MF_RESOLUTION_MEDIASOURCE|MF_RESOLUTION_CONTENT_DOES_NOT_HAVE_TO_MATCH_EXTENSION_OR_MIME_TYPE,
NULL, &objType, &punk);
if (FAILED(hr))
return hr;
if (objType != MF_OBJECT_MEDIASOURCE)
return E_FAIL;
return InternalOpen(punk.Get());
}
