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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** 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 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.
**
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef AVFVIDEOFRAMERENDERER_H
#define AVFVIDEOFRAMERENDERER_H
#include <QtCore/QObject>
#include <QtGui/QImage>
#include <QtGui/QOpenGLContext>
#include <QtCore/QSize>
@class AVPlayerLayer;
@class AVPlayerItemVideoOutput;
QT_BEGIN_NAMESPACE
class QOpenGLContext;
class QOpenGLFramebufferObject;
class QOpenGLShaderProgram;
class QOffscreenSurface;
class QAbstractVideoSurface;
typedef struct __CVBuffer *CVBufferRef;
typedef CVBufferRef CVImageBufferRef;
typedef CVImageBufferRef CVPixelBufferRef;
#if defined(Q_OS_IOS)
typedef struct __CVOpenGLESTextureCache *CVOpenGLESTextureCacheRef;
typedef CVImageBufferRef CVOpenGLESTextureRef;
// helpers to avoid boring if def
typedef CVOpenGLESTextureCacheRef CVOGLTextureCacheRef;
typedef CVOpenGLESTextureRef CVOGLTextureRef;
#define CVOGLTextureGetTarget CVOpenGLESTextureGetTarget
#define CVOGLTextureGetName CVOpenGLESTextureGetName
#define CVOGLTextureCacheCreate CVOpenGLESTextureCacheCreate
#define CVOGLTextureCacheCreateTextureFromImage CVOpenGLESTextureCacheCreateTextureFromImage
#define CVOGLTextureCacheFlush CVOpenGLESTextureCacheFlush
#else
typedef struct __CVOpenGLTextureCache *CVOpenGLTextureCacheRef;
typedef CVImageBufferRef CVOpenGLTextureRef;
// helpers to avoid boring if def
typedef CVOpenGLTextureCacheRef CVOGLTextureCacheRef;
typedef CVOpenGLTextureRef CVOGLTextureRef;
#define CVOGLTextureGetTarget CVOpenGLTextureGetTarget
#define CVOGLTextureGetName CVOpenGLTextureGetName
#define CVOGLTextureCacheCreate CVOpenGLTextureCacheCreate
#define CVOGLTextureCacheCreateTextureFromImage CVOpenGLTextureCacheCreateTextureFromImage
#define CVOGLTextureCacheFlush CVOpenGLTextureCacheFlush
#endif
class AVFVideoFrameRenderer : public QObject
{
public:
AVFVideoFrameRenderer(QAbstractVideoSurface *surface, QObject *parent = 0);
virtual ~AVFVideoFrameRenderer();
void setPlayerLayer(AVPlayerLayer *layer);
CVOGLTextureRef renderLayerToTexture(AVPlayerLayer *layer);
QImage renderLayerToImage(AVPlayerLayer *layer);
private:
void initRenderer();
CVPixelBufferRef copyPixelBufferFromLayer(AVPlayerLayer *layer, size_t& width, size_t& height);
CVOGLTextureRef createCacheTextureFromLayer(AVPlayerLayer *layer, size_t& width, size_t& height);
QOpenGLContext *m_glContext;
QOffscreenSurface *m_offscreenSurface;
QAbstractVideoSurface *m_surface;
CVOGLTextureCacheRef m_textureCache;
AVPlayerItemVideoOutput* m_videoOutput;
bool m_isContextShared;
};
QT_END_NAMESPACE
#endif // AVFVIDEOFRAMERENDERER_H
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