WMF: enabled HW-accelerated video decoding for the QML video item.

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>
2013-01-14 17:44:06 +01:00
parent 02add40392
commit 101c78983a
12 changed files with 3769 additions and 66 deletions
--- a/src/plugins/wmf/mfglobal.cpp
+++ b/src/plugins/wmf/mfglobal.cpp
@@ -0,0 +1,124 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
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+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "mfglobal.h"
+
+HRESULT qt_wmf_getFourCC(IMFMediaType *type, DWORD *fourCC)
+{
+    if (!fourCC)
+        return E_POINTER;
+
+    HRESULT hr = S_OK;
+    GUID guidSubType = GUID_NULL;
+
+    if (SUCCEEDED(hr))
+        hr = type->GetGUID(MF_MT_SUBTYPE, &guidSubType);
+
+    if (SUCCEEDED(hr))
+        *fourCC = guidSubType.Data1;
+
+    return hr;
+}
+
+MFRatio qt_wmf_getPixelAspectRatio(IMFMediaType *type)
+{
+    MFRatio ratio = { 0, 0 };
+    HRESULT hr = S_OK;
+
+    hr = MFGetAttributeRatio(type, MF_MT_PIXEL_ASPECT_RATIO, (UINT32*)&ratio.Numerator, (UINT32*)&ratio.Denominator);
+    if (FAILED(hr)) {
+        ratio.Numerator = 1;
+        ratio.Denominator = 1;
+    }
+    return ratio;
+}
+
+bool qt_wmf_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2)
+{
+    if (!type1 && !type2)
+        return true;
+    else if (!type1 || !type2)
+        return false;
+
+    DWORD dwFlags = 0;
+    HRESULT hr = type1->IsEqual(type2, &dwFlags);
+
+    return (hr == S_OK);
+}
+
+HRESULT qt_wmf_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height)
+{
+    float fOffsetX = qt_wmf_MFOffsetToFloat(area.OffsetX);
+    float fOffsetY = qt_wmf_MFOffsetToFloat(area.OffsetY);
+
+    if ( ((LONG)fOffsetX + area.Area.cx > (LONG)width) ||
+         ((LONG)fOffsetY + area.Area.cy > (LONG)height) )
+        return MF_E_INVALIDMEDIATYPE;
+    else
+        return S_OK;
+}
+
+bool qt_wmf_isSampleTimePassed(IMFClock *clock, IMFSample *sample)
+{
+    if (!sample || !clock)
+        return false;
+
+    HRESULT hr = S_OK;
+    MFTIME hnsTimeNow = 0;
+    MFTIME hnsSystemTime = 0;
+    MFTIME hnsSampleStart = 0;
+    MFTIME hnsSampleDuration = 0;
+
+    hr = clock->GetCorrelatedTime(0, &hnsTimeNow, &hnsSystemTime);
+
+    if (SUCCEEDED(hr))
+        hr = sample->GetSampleTime(&hnsSampleStart);
+
+    if (SUCCEEDED(hr))
+        hr = sample->GetSampleDuration(&hnsSampleDuration);
+
+    if (SUCCEEDED(hr)) {
+        if (hnsSampleStart + hnsSampleDuration < hnsTimeNow)
+            return true;
+    }
+
+    return false;
+}