101c78983a
It also applies to QGraphicsVideoItem when used on a GL viewport. We now have a new video sink that is based on Microsoft's EVR sink, we just replace the default Presenter with our own. Frames are rendered into D3D surfaces using DXVA, then copied into a shared D3D/EGL surface and finally bound to a GL texture to be used by the video surface. The shared D3D/EGL surface is a feature provided by ANGLE and therefore Qt must be compiled with ANGLE for this new video sink to be compiled and used. Change-Id: I0b7b9968eed5488f9ef1a2dcca5213bd0af232ab Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
125 lines
3.8 KiB
C++
125 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "mfglobal.h"
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HRESULT qt_wmf_getFourCC(IMFMediaType *type, DWORD *fourCC)
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{
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if (!fourCC)
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return E_POINTER;
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HRESULT hr = S_OK;
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GUID guidSubType = GUID_NULL;
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if (SUCCEEDED(hr))
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hr = type->GetGUID(MF_MT_SUBTYPE, &guidSubType);
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if (SUCCEEDED(hr))
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*fourCC = guidSubType.Data1;
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return hr;
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}
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MFRatio qt_wmf_getPixelAspectRatio(IMFMediaType *type)
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{
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MFRatio ratio = { 0, 0 };
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HRESULT hr = S_OK;
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hr = MFGetAttributeRatio(type, MF_MT_PIXEL_ASPECT_RATIO, (UINT32*)&ratio.Numerator, (UINT32*)&ratio.Denominator);
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if (FAILED(hr)) {
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ratio.Numerator = 1;
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ratio.Denominator = 1;
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}
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return ratio;
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}
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bool qt_wmf_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2)
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{
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if (!type1 && !type2)
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return true;
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else if (!type1 || !type2)
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return false;
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DWORD dwFlags = 0;
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HRESULT hr = type1->IsEqual(type2, &dwFlags);
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return (hr == S_OK);
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}
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HRESULT qt_wmf_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height)
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{
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float fOffsetX = qt_wmf_MFOffsetToFloat(area.OffsetX);
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float fOffsetY = qt_wmf_MFOffsetToFloat(area.OffsetY);
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if ( ((LONG)fOffsetX + area.Area.cx > (LONG)width) ||
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((LONG)fOffsetY + area.Area.cy > (LONG)height) )
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return MF_E_INVALIDMEDIATYPE;
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else
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return S_OK;
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}
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bool qt_wmf_isSampleTimePassed(IMFClock *clock, IMFSample *sample)
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{
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if (!sample || !clock)
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return false;
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HRESULT hr = S_OK;
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MFTIME hnsTimeNow = 0;
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MFTIME hnsSystemTime = 0;
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MFTIME hnsSampleStart = 0;
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MFTIME hnsSampleDuration = 0;
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hr = clock->GetCorrelatedTime(0, &hnsTimeNow, &hnsSystemTime);
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if (SUCCEEDED(hr))
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hr = sample->GetSampleTime(&hnsSampleStart);
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if (SUCCEEDED(hr))
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hr = sample->GetSampleDuration(&hnsSampleDuration);
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if (SUCCEEDED(hr)) {
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if (hnsSampleStart + hnsSampleDuration < hnsTimeNow)
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return true;
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}
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return false;
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}
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