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73738d61f9
The IMFTransform interface used by MFTDecoder is documented to require to run on an MTA threads: https://msdn.microsoft.com/en-us/library/windows/desktop/ee892371(v=vs.85).aspx#components We're currently using IMFTransform objects on the main thread, which is STA. So delegate calls to the IMFTransform to the MTA thread when necessary, to ensure it always runs on an MTA thread. The existing uses of IMFTransform objects in the decode thread pool threads will be fine, as those threads are already MTA. We also defer initialization of WMF to the MTA thread, so that we're always interacting with WMF on an MTA thread. MozReview-Commit-ID: Dm8XpdvJLkS --HG-- extra : rebase_source : 0807241c8cdd01c1b99bf946ea4728996ac61f68
94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WMF_H_
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#define WMF_H_
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#include <windows.h>
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#include <mfapi.h>
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#include <mfidl.h>
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#include <mfreadwrite.h>
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#include <mfobjects.h>
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#include <ks.h>
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#include <stdio.h>
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#include <mferror.h>
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#include <propvarutil.h>
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#include <wmcodecdsp.h>
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#include <d3d9.h>
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#include <dxva2api.h>
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#include <wmcodecdsp.h>
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#include <codecapi.h>
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// The Windows headers helpfully declare min and max macros, which don't
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// compile in the presence of std::min and std::max and unified builds.
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// So undef them here.
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#ifdef min
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#undef min
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#endif
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#ifdef max
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#undef max
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#endif
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// Some SDK versions don't define the AAC decoder CLSID.
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#ifndef CLSID_CMSAACDecMFT
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extern "C" const CLSID CLSID_CMSAACDecMFT;
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#define WMF_MUST_DEFINE_AAC_MFT_CLSID
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#endif
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namespace mozilla {
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namespace wmf {
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// If successful, loads all required WMF DLLs and calls the WMF MFStartup()
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// function. This delegates the WMF MFStartup() call to the MTA thread if
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// the current thread is not MTA. This is to ensure we always interact with
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// WMF from threads with the same COM compartment model.
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HRESULT MFStartup();
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// Calls the WMF MFShutdown() function. Call this once for every time
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// wmf::MFStartup() succeeds. Note: does not unload the WMF DLLs loaded by
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// MFStartup(); leaves them in memory to save I/O at next MFStartup() call.
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// This delegates the WMF MFShutdown() call to the MTA thread if the current
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// thread is not MTA. This is to ensure we always interact with
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// WMF from threads with the same COM compartment model.
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HRESULT MFShutdown();
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// All functions below are wrappers around the corresponding WMF function,
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// and automatically locate and call the corresponding function in the WMF DLLs.
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HRESULT MFCreateMediaType(IMFMediaType **aOutMFType);
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HRESULT MFGetStrideForBitmapInfoHeader(DWORD aFormat,
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DWORD aWidth,
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LONG *aOutStride);
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HRESULT MFGetService(IUnknown *punkObject,
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REFGUID guidService,
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REFIID riid,
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LPVOID *ppvObject);
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HRESULT DXVA2CreateDirect3DDeviceManager9(UINT *pResetToken,
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IDirect3DDeviceManager9 **ppDXVAManager);
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HRESULT MFCreateDXGIDeviceManager(UINT *pResetToken, IMFDXGIDeviceManager **ppDXVAManager);
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HRESULT MFCreateSample(IMFSample **ppIMFSample);
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HRESULT MFCreateAlignedMemoryBuffer(DWORD cbMaxLength,
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DWORD fAlignmentFlags,
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IMFMediaBuffer **ppBuffer);
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HRESULT MFCreateDXGISurfaceBuffer(REFIID riid,
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IUnknown *punkSurface,
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UINT uSubresourceIndex,
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BOOL fButtomUpWhenLinear,
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IMFMediaBuffer **ppBuffer);
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} // end namespace wmf
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} // end namespace mozilla
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#endif
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