media.h

/*
    SPDX-FileCopyrightText: 2018 Jasem Mutlaq <mutlaqja@ikarustech.com>
 
    Media Channel
 
    SPDX-License-Identifier: GPL-2.0-or-later
*/
 
#pragma once
 
#include <QtWebSockets/QWebSocket>
#include <memory>
 
#include "ekos/manager.h"
#include "nodemanager.h"
 
class FITSView;
 
namespace EkosLive
{
class Media : public QObject
{
        Q_OBJECT
 
    public:
        explicit Media(Ekos::Manager * manager, QVector<QSharedPointer<NodeManager>> &nodeManagers);
        virtual ~Media() = default;
 
        bool isConnected() const;
        void sendResponse(const QString &command, const QJsonObject &payload);
        void sendResponse(const QString &command, const QJsonArray &payload);
 
        void registerCameras();
 
        // Ekos Media Message to User
        void sendFile(const QString &filename, const QString &uuid);
        void sendData(const QSharedPointer<FITSData> &data, const QString &uuid);        
        void sendView(const QSharedPointer<FITSView> &view, const QString &uuid);
        void sendUpdatedFrame(const QSharedPointer<FITSView> &view);
        void sendModuleFrame(const QSharedPointer<FITSView> &view);
 
        // Convenience functions
        void sendDarkLibraryData(const QSharedPointer<FITSData> &data);
 
    signals:
        void connected();
        void disconnected();
 
        void newBoundingRect(QRect rect, QSize view, double currentZoom);
        void newMetadata(const QByteArray &metadata);
        void newImage(const QByteArray &image);
 
    public slots:
        // Capture
        void sendVideoFrame(const QSharedPointer<QImage> &frame);
 
        // Correction Vector
        void setCorrectionVector(QLineF correctionVector)
        {
            this->correctionVector = correctionVector;
        }
 
        // Polar View
        void resetPolarView();
 
        void processNewBLOB(IBLOB *bp);
 
    private slots:
        // Connection
        void onConnected();
        void onDisconnected();        
 
        // Communication
        void onTextReceived(const QString &message);
        void onBinaryReceived(const QByteArray &message);
 
        // Metadata and Image upload
        void uploadMetadata(const QByteArray &metadata);
        void uploadImage(const QByteArray &image);
 
    private:
        void dispatch(const QSharedPointer<FITSData> &data, const QString &uuid);
        void upload(const QSharedPointer<FITSView> &view, const QString &uuid);
 
        void upload(const QSharedPointer<FITSData> &data, const QImage &image, const StretchParams &params, const QString &uuid);
        void stretch(const QSharedPointer<FITSData> &data, QImage &image, StretchParams &params) const;
 
        Ekos::Manager * m_Manager { nullptr };
        QVector<QSharedPointer<NodeManager>> m_NodeManagers;
        QString extension;
        QStringList temporaryFiles;
        QLineF correctionVector;
 
        bool m_sendBlobs { true};
 
        // Image width for high-bandwidth setting
        static const uint16_t HB_IMAGE_WIDTH = 1920;
        // Video width for high-bandwidth setting
        static const uint16_t HB_VIDEO_WIDTH = 1280;
        // Image high bandwidth image quality (jpg)
        static const uint8_t HB_IMAGE_QUALITY = 90;
        // Video high bandwidth video quality (jpg)
        static const uint8_t HB_VIDEO_QUALITY = 64;
        // Image high bandwidth image quality (jpg) for PAH
        static const uint8_t HB_PAH_IMAGE_QUALITY = 50;
        // Video high bandwidth video quality (jpg) for PAH
        static const uint8_t HB_PAH_VIDEO_QUALITY = 24;
 
        // Retry every 5 seconds in case remote server is down
        static const uint16_t RECONNECT_INTERVAL = 5000;
        // Retry for 1 hour before giving up
        static const uint16_t RECONNECT_MAX_TRIES = 720;
 
        // Binary Metadata Size
        static const uint16_t METADATA_PACKET = 512;
 
        // HIPS Tile Width and Height
        static const uint16_t HIPS_TILE_WIDTH = 512;
        static const uint16_t HIPS_TILE_HEIGHT = 512;
};
}