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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#ifndef FRAMEGENERATOR_H
#define FRAMEGENERATOR_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 <QtCore/qobject.h>
#include <QtMultimedia/qvideoframe.h>
#include <array>
#include <chrono>
QT_BEGIN_NAMESPACE
enum class ImagePattern
{
SingleColor, // Image filled with a single color
ColoredSquares // Colored squares, [red, green; blue, yellow]
};
class VideoGenerator : public QObject
{
Q_OBJECT
public:
void setPattern(ImagePattern pattern);
void setFrameCount(int count);
void setSize(QSize size);
void setPixelFormat(QVideoFrameFormat::PixelFormat pixelFormat);
void setFrameRate(double rate);
void setPeriod(std::chrono::microseconds period);
void setPresentationRotation(QtVideo::Rotation rotation);
void setPresentationMirrored(bool mirror);
void setEndTimeReporting(bool endTimeIsReported);
void setColors(std::array<QColor, 5> colors);
void emitEmptyFrameOnStop();
QVideoFrame createFrame();
Q_SIGNALS:
void done();
void frameCreated(const QVideoFrame &frame);
public Q_SLOTS:
void nextFrame();
private:
std::array<QColor, 5> m_colors{
QColorConstants::Red, QColorConstants::Green, QColorConstants::Blue,
QColorConstants::Black, QColorConstants::White,
};
ImagePattern m_pattern = ImagePattern::SingleColor;
QSize m_size{ 640, 480 };
QVideoFrameFormat::PixelFormat m_pixelFormat = QVideoFrameFormat::Format_BGRA8888;
std::optional<int> m_maxFrameCount;
int m_frameIndex = 0;
std::optional<double> m_frameRate;
std::optional<std::chrono::microseconds> m_period;
std::optional<QtVideo::Rotation> m_presentationRotation;
std::optional<bool> m_presentationMirrored;
bool m_emitEmptyFrameOnStop = false;
bool m_endTimeIsReported = true;
};
QT_END_NAMESPACE
#endif