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Diffstat (limited to 'src/plugins/common/evr/evrhelpers.h')
-rw-r--r-- | src/plugins/common/evr/evrhelpers.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/src/plugins/common/evr/evrhelpers.h b/src/plugins/common/evr/evrhelpers.h new file mode 100644 index 000000000..1b1f64194 --- /dev/null +++ b/src/plugins/common/evr/evrhelpers.h @@ -0,0 +1,91 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL21$ +** 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 +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/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 or version 3 as published by the Free +** Software Foundation and appearing in the file LICENSE.LGPLv21 and +** LICENSE.LGPLv3 included in the packaging of this file. Please review the +** following information to ensure the GNU Lesser General Public License +** requirements will be met: https://www.gnu.org/licenses/lgpl.html and +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef EVRHELPERS_H +#define EVRHELPERS_H + +#include "evrdefs.h" +#include <qvideoframe.h> + +QT_USE_NAMESPACE + +template<class T> +static inline void qt_evr_safe_release(T **unk) +{ + if (*unk) { + (*unk)->Release(); + *unk = NULL; + } +} + +HRESULT qt_evr_getFourCC(IMFMediaType *type, DWORD *fourCC); + +bool qt_evr_areMediaTypesEqual(IMFMediaType *type1, IMFMediaType *type2); + +HRESULT qt_evr_validateVideoArea(const MFVideoArea& area, UINT32 width, UINT32 height); + +bool qt_evr_isSampleTimePassed(IMFClock *clock, IMFSample *sample); + +inline float qt_evr_MFOffsetToFloat(const MFOffset& offset) +{ + return offset.value + (float(offset.fract) / 65536); +} + +inline MFOffset qt_evr_makeMFOffset(float v) +{ + MFOffset offset; + offset.value = short(v); + offset.fract = WORD(65536 * (v-offset.value)); + return offset; +} + +inline MFVideoArea qt_evr_makeMFArea(float x, float y, DWORD width, DWORD height) +{ + MFVideoArea area; + area.OffsetX = qt_evr_makeMFOffset(x); + area.OffsetY = qt_evr_makeMFOffset(y); + area.Area.cx = width; + area.Area.cy = height; + return area; +} + +inline HRESULT qt_evr_getFrameRate(IMFMediaType *pType, MFRatio *pRatio) +{ + return MFGetAttributeRatio(pType, MF_MT_FRAME_RATE, (UINT32*)&pRatio->Numerator, (UINT32*)&pRatio->Denominator); +} + +QVideoFrame::PixelFormat qt_evr_pixelFormatFromD3DFormat(D3DFORMAT format); +D3DFORMAT qt_evr_D3DFormatFromPixelFormat(QVideoFrame::PixelFormat format); + +#endif // EVRHELPERS_H + |