// IMFSchemeHandler methods
IFACEMETHODIMP CGeometricSchemeHandler::BeginCreateObject(
_In_ LPCWSTR pwszURL,
_In_ DWORD dwFlags,
_In_ IPropertyStore *pProps,
_Out_opt_ IUnknown **ppIUnknownCancelCookie,
_In_ IMFAsyncCallback *pCallback,
_In_ IUnknown *punkState)
{
if (pwszURL == nullptr || pCallback == nullptr)
{
return E_INVALIDARG;
}
if ((dwFlags & MF_RESOLUTION_MEDIASOURCE) == 0)
{
return E_INVALIDARG;
}
ComPtr<CGeometricMediaSource> spSource;
ComPtr<IMFAsyncResult> spResult;
HRESULT hr = CGeometricMediaSource::CreateInstance(&spSource);
if (SUCCEEDED(hr))
{
ComPtr<IUnknown> spunkSource;
hr = spSource.As(&spunkSource);
if (SUCCEEDED(hr))
{
hr = MFCreateAsyncResult(spunkSource.Get(), pCallback, punkState, &spResult);
}
}
if (SUCCEEDED(hr))
{
hr = spSource->BeginOpen(pwszURL, &_OnSourceOpenCB, spResult.Get());
}
if (SUCCEEDED(hr) && ppIUnknownCancelCookie != nullptr)
{
*ppIUnknownCancelCookie = nullptr;
}
if (FAILED(hr))
{
spSource->Shutdown();
}
return hr;
}
//create bytestream
//create media-source
HRESULT FttpSchemeHandler::BeginCreateObject(LPCWSTR url,
DWORD flags,
IPropertyStore* , // not used
IUnknown**cancel_cookie,
IMFAsyncCallback*callback,
IUnknown*s) {
if(cancel_cookie)
*cancel_cookie = nullptr;
if ((flags & MF_RESOLUTION_WRITE) || !(flags & MF_RESOLUTION_MEDIASOURCE))
return E_INVALIDARG;
if (caller_result)
return E_FAIL; // only one session allowed
uri = fttp_resolver().resolve(url);
auto hr = uri.validate() ? S_OK : E_INVALID_PROTOCOL_FORMAT;
IMFSchemeHandlerPtr pthis(this);
if (SUCCEEDED(hr)) hr = MFCreateAsyncResult(nullptr, callback, s, &caller_result);
if (SUCCEEDED(hr) && uri.type == fttp_type::url)
scatter_tar_file_handler().async_check(uri.true_url).then([this, pthis](scheme_check_result result) {
assert(!http_stream && !source_creator);
content_type = result.content_type;
CopyMemory(magic, result.maigic, sizeof(magic));
HRESULT hr = result.error; // (result.error < 0) ? (result.error | make_sure_negativei32) : S_OK;
if (SUCCEEDED(hr) && (http_stream || source_creator)) hr = E_FAIL;
if (SUCCEEDED(hr))
hr = MakeAndInitialize<ProgressiveHttpStream, IMFByteStream>(&http_stream, result.url.c_str(), result.content_length);
if (SUCCEEDED(hr)) hr = BeginCreateMediaSource();
if (FAILED(hr)) {
caller_result->SetStatus(hr);
hr = MFInvokeCallback(caller_result.Get());
}
});
else if (SUCCEEDED(hr)) {
auto fp = uri.true_url;
hr = MFBeginCreateFile(MF_ACCESSMODE_READ, MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILEFLAGS_NONE, fp.c_str(), &when_create_bytestream, nullptr, nullptr);
}
return hr;
}
STDMETHODIMP MFStream::BeginRead(BYTE *pb, ULONG cb, IMFAsyncCallback *pCallback,
IUnknown *punkState)
{
if (!pCallback || !pb)
return E_INVALIDARG;
Q_ASSERT(m_currentReadResult == NULL);
AsyncReadState *state = new (std::nothrow) AsyncReadState(pb, cb);
if (state == NULL)
return E_OUTOFMEMORY;
HRESULT hr = MFCreateAsyncResult(state, pCallback, punkState, &m_currentReadResult);
state->Release();
if (FAILED(hr))
return hr;
QCoreApplication::postEvent(this, new QEvent(QEvent::User));
return hr;
}
/// <summary>
/// Begins an asynchronous read operation from the stream.
/// </summary>
/// <param name="pb">Pointer to a buffer that receives the data. The caller must allocate the buffer. [in]</param>
/// <param name="cb">Size of the buffer in bytes. [in]</param>
/// <param name="pCallback">Pointer to the IMFAsyncCallback interface of a callback object. The caller must implement this interface. [in]</param>
/// <param name="punkState">Pointer to the IUnknown interface of a state object, defined by the caller. This parameter can be NULL.
/// You can use this object to hold state information. The object is returned to the caller when the callback is invoked. [in]</param>
/// <returns>The result of the operation.</returns>
HRESULT StoreByteStream::BeginRead(
BYTE *pb,
ULONG cb,
IMFAsyncCallback *pCallback,
IUnknown *punkState)
{
HRESULT hr = S_OK;
// Create a new read byte container.
ReadByteContainer* readBytes = new ReadByteContainer(pb, cb);
ReadByteAsyncCallback* readCallback = new ReadByteAsyncCallback(this);
// If not created.
if (readBytes == NULL)
{
return E_OUTOFMEMORY;
}
// If not created.
if (readCallback == NULL)
{
return E_OUTOFMEMORY;
}
IMFAsyncResult *pResult = NULL;
readBytes->_readCallback = readCallback;
// Creates an asynchronous result object. Use this function if you are implementing an asynchronous method.
hr = MFCreateAsyncResult(readBytes, pCallback, punkState, &pResult);
if (SUCCEEDED(hr))
{
// Start a new work item thread.
hr = MFPutWorkItem(MFASYNC_CALLBACK_QUEUE_STANDARD, readCallback, pResult);
pResult->Release();
}
// Return the result.
return hr;
}
/** Begins an asyncronous read */
STDMETHODIMP FImfByteStream::BeginRead( BYTE* pb, ULONG cb, IMFAsyncCallback* pCallback, IUnknown* punkState )
{
HRESULT HResult = S_OK;
if( !pCallback || !pb )
return E_INVALIDARG;
IMFAsyncResult* Result = NULL;
AsyncReadState* State = new( std::nothrow ) AsyncReadState( pb, cb );
if( State == NULL )
return E_OUTOFMEMORY;
HResult = MFCreateAsyncResult( State, pCallback, punkState, &Result );
State->Release( );
if( SUCCEEDED( HResult ) )
{
IsCurrentlyReading = true;
HResult = MFPutWorkItem( MFASYNC_CALLBACK_QUEUE_STANDARD, this, Result );
Result->Release( );
}
return HResult;
}
HRESULT HDCoreByteStreamHandler::BeginCreateObject(IMFByteStream *pByteStream,LPCWSTR pwszURL,DWORD dwFlags,IPropertyStore *pProps,IUnknown **ppIUnknownCancelCookie,IMFAsyncCallback *pCallback,IUnknown *punkState)
{
#ifdef _DEBUG
OutputDebugStringA("HDCoreByteStreamHandler->CreateObject...\n");
#endif
std::lock_guard<decltype(_mutex)> lock(_mutex);
if (pByteStream == nullptr ||
pCallback == nullptr)
return E_POINTER;
if ((dwFlags & MF_RESOLUTION_MEDIASOURCE) == 0)
return E_INVALIDARG;
if (ppIUnknownCancelCookie)
*ppIUnknownCancelCookie = nullptr;
if (_openResult)
return E_UNEXPECTED;
double bufferTime = 5.0;
if (pProps) {
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
PROPVARIANT var;
PropVariantInit(&var);
PROPERTYKEY key;
key.fmtid = MFNETSOURCE_BUFFERINGTIME;
key.pid = 0;
if (SUCCEEDED(pProps->GetValue(key,&var)))
{
if (var.vt = VT_I4 || var.vt == VT_UI4)
bufferTime = (double)var.lVal / 1000.0;
if (bufferTime <= 0.0)
bufferTime = 5.0;
}
PropVariantClear(&var);
#endif
}
if (GlobalOptionGetDouble(kNetworkPacketBufferTime) > 0.9)
bufferTime = GlobalOptionGetDouble(kNetworkPacketBufferTime);
ComPtr<IMFByteStreamBuffering> pIsNetwork;
HRESULT hrIsNetwork = pByteStream->QueryInterface(
IID_PPV_ARGS(pIsNetwork.GetAddressOf()));
auto source = HDMediaSource::CreateMediaSource(
SUCCEEDED(hrIsNetwork) ? MF_SOURCE_STREAM_QUEUE_AUTO:
MF_SOURCE_STREAM_QUEUE_FPS_AUTO);
if (source == nullptr)
return E_OUTOFMEMORY;
if (SUCCEEDED(hrIsNetwork))
source->SetNetworkPrerollTime(bufferTime);
HRESULT hr = MFCreateAsyncResult(static_cast<IMFMediaSource*>(source.Get()),
pCallback,punkState,
_openResult.GetAddressOf());
if (FAILED(hr))
return hr;
hr = source->OpenAsync(pByteStream,this);
if (FAILED(hr))
return hr;
_mediaSource = source;
return S_OK;
}
