matrixion/src/ui/MxcMediaProxy.h

// SPDX-FileCopyrightText: 2021 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later

#pragma once

#include <QAbstractVideoSurface>
#include <QBuffer>
#include <QMediaContent>
#include <QMediaPlayer>
#include <QObject>
#include <QPointer>
#include <QString>

#include "Logging.h"

class TimelineModel;

// I failed to get my own buffer into the MediaPlayer in qml, so just make our own. For that we just
// need the videoSurface property, so that part is really easy!
class MxcMediaProxy : public QMediaPlayer
{
    Q_OBJECT
    Q_PROPERTY(TimelineModel *roomm READ room WRITE setRoom NOTIFY roomChanged REQUIRED)
    Q_PROPERTY(QString eventId READ eventId WRITE setEventId NOTIFY eventIdChanged)
    Q_PROPERTY(QAbstractVideoSurface *videoSurface READ getVideoSurface WRITE setVideoSurface)
    Q_PROPERTY(bool loaded READ loaded NOTIFY loadedChanged)
public:
    MxcMediaProxy(QObject *parent = nullptr)
      : QMediaPlayer(parent)
    {
        connect(this, &MxcMediaProxy::eventIdChanged, &MxcMediaProxy::startDownload);
        connect(this, &MxcMediaProxy::roomChanged, &MxcMediaProxy::startDownload);
        connect(this,
                qOverload<QMediaPlayer::Error>(&MxcMediaProxy::error),
                [this](QMediaPlayer::Error error) {
                    nhlog::ui()->info("Media player error {} and errorStr {}",
                                      error,
                                      this->errorString().toStdString());
                });
        connect(this, &MxcMediaProxy::mediaStatusChanged, [this](QMediaPlayer::MediaStatus status) {
            nhlog::ui()->info("Media player status {} and error {}", status, this->error());
        });
    }

    bool loaded() const { return buffer.size() > 0; }
    QString eventId() const { return eventId_; }
    TimelineModel *room() const { return room_; }
    void setEventId(QString newEventId)
    {
        eventId_ = newEventId;
        emit eventIdChanged();
    }
    void setRoom(TimelineModel *room)
    {
        room_ = room;
        emit roomChanged();
    }
    void setVideoSurface(QAbstractVideoSurface *surface);
    QAbstractVideoSurface *getVideoSurface();

signals:
    void roomChanged();
    void eventIdChanged();
    void loadedChanged();
    void newBuffer(QMediaContent, QIODevice *buf);

private slots:
    void startDownload();

private:
    TimelineModel *room_ = nullptr;
    QString eventId_;
    QString filename_;
    QBuffer buffer;
    QAbstractVideoSurface *m_surface = nullptr;
};