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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "MFPMPHostWrapper.h"
#include "MFMediaEngineUtils.h"
#include "WMF.h"
#include "mozilla/EMEUtils.h"
namespace mozilla {
using Microsoft::WRL::ComPtr;
#define LOG(msg, ...) EME_LOG("MFPMPHostWrapper=%p, " msg, this, ##__VA_ARGS__)
HRESULT MFPMPHostWrapper::RuntimeClassInitialize(
Microsoft::WRL::ComPtr<IMFPMPHost>& aHost) {
mPMPHost = aHost;
return S_OK;
}
STDMETHODIMP MFPMPHostWrapper::LockProcess() { return mPMPHost->LockProcess(); }
STDMETHODIMP MFPMPHostWrapper::UnlockProcess() {
return mPMPHost->UnlockProcess();
}
STDMETHODIMP MFPMPHostWrapper::ActivateClassById(LPCWSTR aId, IStream* aStream,
REFIID aRiid,
void** aActivatedClass) {
LOG("ActivateClassById, id=%ls", aId);
ComPtr<IMFAttributes> creationAttributes;
RETURN_IF_FAILED(wmf::MFCreateAttributes(&creationAttributes, 2));
RETURN_IF_FAILED(creationAttributes->SetString(GUID_ClassName, aId));
if (aStream) {
STATSTG statstg;
RETURN_IF_FAILED(
aStream->Stat(&statstg, STATFLAG_NOOPEN | STATFLAG_NONAME));
nsTArray<uint8_t> streamBlob;
streamBlob.SetLength(statstg.cbSize.LowPart);
unsigned long readSize = 0;
RETURN_IF_FAILED(
aStream->Read(&streamBlob[0], streamBlob.Length(), &readSize));
RETURN_IF_FAILED(creationAttributes->SetBlob(GUID_ObjectStream,
&streamBlob[0], readSize));
}
ComPtr<IStream> outputStream;
RETURN_IF_FAILED(CreateStreamOnHGlobal(nullptr, TRUE, &outputStream));
RETURN_IF_FAILED(wmf::MFSerializeAttributesToStream(creationAttributes.Get(),
0, outputStream.Get()));
RETURN_IF_FAILED(outputStream->Seek({}, STREAM_SEEK_SET, nullptr));
ComPtr<IMFActivate> activator;
RETURN_IF_FAILED(mPMPHost->CreateObjectByCLSID(
CLSID_EMEStoreActivate, outputStream.Get(), IID_PPV_ARGS(&activator)));
RETURN_IF_FAILED(activator->ActivateObject(aRiid, aActivatedClass));
LOG("Done ActivateClassById, id=%ls", aId);
return S_OK;
}
#undef LOG
} // namespace mozilla
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