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/****************************************************************************
*
* (c) 2009-2020 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
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*
* QGroundControl is licensed according to the terms in the file
* COPYING.md in the root of the source code directory.
*
****************************************************************************/
/**
* @file
* @brief QGC Video Subtitle Writer
* @author Willian Galvani <williangalvani@gmail.com>
*/
#pragma once
#include "QGCLoggingCategory.h"
#include "VideoReceiver.h"
#include <QObject>
#include <QTimer>
#include <QDateTime>
#include <QFile>
Q_DECLARE_LOGGING_CATEGORY(SubtitleWriterLog)
class SubtitleWriter : public QObject
{
Q_OBJECT
public:
explicit SubtitleWriter(QObject* parent = nullptr);
~SubtitleWriter() = default;
void setVideoReceiver(VideoReceiver* videoReceiver);
private slots:
// Fires with every "videoRecordingChanged() signal, stops capturing telemetry if video stopped."
void _onVideoRecordingChanged();
// Captures a snapshot of telemetry data from vehicle into the subtitles file.
void _captureTelemetry();
// starts capturing vehicle telemetry.
void _startCapturingTelemetry();
private:
QTimer _timer;
QStringList _values;
QDateTime _startTime;
QFile _file;
VideoReceiver* _videoReceiver;
static const int _sampleRate;
};