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/****************************************************************************
**
** Copyright (C) 2022 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** 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 https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
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**
******************************************************************************/
#ifndef QANDROIDVIDEOOUTPUT_H
#define QANDROIDVIDEOOUTPUT_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <qobject.h>
#include <qsize.h>
#include <qmutex.h>
#include <qreadwritelock.h>
#include <private/qabstractvideobuffer_p.h>
#include <qmatrix4x4.h>
#include <QtGui/private/qrhi_p.h>
#include <QtGui/qoffscreensurface.h>
#include <QPixmap>
QT_BEGIN_NAMESPACE
class AndroidSurfaceTexture;
class AndroidSurfaceHolder;
class QVideoSink;
class QAndroidVideoOutput : public QObject
{
Q_OBJECT
public:
virtual ~QAndroidVideoOutput() { }
virtual AndroidSurfaceTexture *surfaceTexture() { return 0; }
virtual AndroidSurfaceHolder *surfaceHolder() { return 0; }
virtual bool isReady() { return true; }
virtual void setVideoSize(const QSize &) { }
virtual void start() { }
virtual void stop() { }
virtual void reset() { }
Q_SIGNALS:
void readyChanged(bool);
protected:
QAndroidVideoOutput(QObject *parent) : QObject(parent) { }
};
class GraphicsResourceDeleter : public QObject
{
Q_OBJECT
public:
void deleteResources(const QList<QRhiResource *> &res) { QMetaObject::invokeMethod(this, "deleteResourcesHelper", Qt::AutoConnection, Q_ARG(QList<QRhiResource*>, res)); }
void deleteRhi(QRhi *rhi, QOffscreenSurface *surf) { QMetaObject::invokeMethod(this, "deleteRhiHelper", Qt::AutoConnection, Q_ARG(QRhi*, rhi), Q_ARG(QOffscreenSurface*, surf)); }
void deleteThis() { QMetaObject::invokeMethod(this, "deleteThisHelper"); }
private:
Q_INVOKABLE void deleteResourcesHelper(const QList<QRhiResource *> &res);
Q_INVOKABLE void deleteRhiHelper(QRhi *rhi, QOffscreenSurface *surf);
Q_INVOKABLE void deleteThisHelper();
};
class QAndroidTextureVideoOutput : public QAndroidVideoOutput
{
Q_OBJECT
public:
explicit QAndroidTextureVideoOutput(QObject *parent = 0);
~QAndroidTextureVideoOutput() override;
QVideoSink *surface() const;
void setSurface(QVideoSink *surface);
AndroidSurfaceTexture *surfaceTexture() override;
bool isReady() override;
void setVideoSize(const QSize &) override;
void start() override;
void stop() override;
void reset() override;
void renderFrame();
void setSubtitle(const QString &subtitle);
private Q_SLOTS:
void onFrameAvailable();
private:
void initSurfaceTexture();
bool renderAndReadbackFrame();
void ensureExternalTexture(QRhi *rhi);
bool moveToOpenGLContextThread();
QMutex m_mutex;
QReadWriteLock m_subtitleLock;
void clearSurfaceTexture();
QVideoSink *m_sink = nullptr;
QSize m_nativeSize;
bool m_started = false;
bool m_renderFrame = false;
AndroidSurfaceTexture *m_surfaceTexture = nullptr;
QRhiTexture *m_externalTex = nullptr;
QRhi *m_readbackRhi = nullptr;
QOffscreenSurface *m_readbackRhiFallbackSurface = nullptr;
QRhiTexture *m_readbackSrc = nullptr;
QRhiTexture *m_readbackTex = nullptr;
QRhiBuffer *m_readbackVBuf = nullptr;
QRhiBuffer *m_readbackUBuf = nullptr;
QRhiSampler *m_externalTexSampler = nullptr;
QRhiShaderResourceBindings *m_readbackSrb = nullptr;
QRhiTextureRenderTarget *m_readbackRenderTarget = nullptr;
QRhiRenderPassDescriptor *m_readbackRpDesc = nullptr;
QRhiGraphicsPipeline *m_readbackPs = nullptr;
QImage m_readbackImage;
QByteArray m_readbackImageData;
QString m_subtitleText;
QPixmap m_subtitlePixmap;
GraphicsResourceDeleter *m_graphicsDeleter = nullptr;
friend class AndroidTextureVideoBuffer;
};
class AndroidTextureVideoBuffer : public QAbstractVideoBuffer
{
public:
AndroidTextureVideoBuffer(QRhi *rhi, QAndroidTextureVideoOutput *output, const QSize &size)
: QAbstractVideoBuffer(rhi ? QVideoFrame::RhiTextureHandle : QVideoFrame::NoHandle, rhi)
, m_output(output)
, m_size(size)
{
}
virtual ~AndroidTextureVideoBuffer() {}
QVideoFrame::MapMode mapMode() const override { return m_mapMode; }
MapData map(QVideoFrame::MapMode mode) override;
void unmap() override
{
m_image = QImage();
m_mapMode = QVideoFrame::NotMapped;
}
quint64 textureHandle(int plane) const override;
QMatrix4x4 externalTextureMatrix() const
{
return m_externalMatrix;
}
private:
bool updateReadbackFrame();
QVideoFrame::MapMode m_mapMode = QVideoFrame::NotMapped;
QAndroidTextureVideoOutput *m_output = nullptr;
QImage m_image;
QSize m_size;
mutable QMatrix4x4 m_externalMatrix;
bool m_textureUpdated = false;
};
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QList<QRhiResource *>)
Q_DECLARE_METATYPE(QRhi*)
#endif // QANDROIDVIDEOOUTPUT_H
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