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fmviewer3/project/fm_viewer/fav/PlayerSubtitle.h
2026-02-21 17:11:31 +09:00

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/******************************************************************************
QtAV: Multimedia framework based on Qt and FFmpeg
Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
* This file is part of QtAV (from 2014)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#ifndef QTAV_PLAYERSUBTITLE_H
#define QTAV_PLAYERSUBTITLE_H
#include <QtCore/QObject>
#include <QtCore/QVariant>
#include <QtCore/QVector>
#include "_fav_constants.h"
#include "Packet.h"
namespace FAV {
#if !(DO_NOT_USE_SUBTITLE)
class AVPlayer;
class Subtitle;
/*!
* \brief The PlayerSubtitle class
* Bind Subtitle to AVPlayer. Used by SubtitleFilter and QuickSubtitle.
* Subtitle load priority: user specified file (setFile(...)) > auto load external (autoLoad() must be true) > embedded subtitle
*/
class Q_AV_PRIVATE_EXPORT PlayerSubtitle : public QObject
{
Q_OBJECT
public:
PlayerSubtitle(QObject *parent = 0);
void setPlayer(AVPlayer* player);
Subtitle* subtitle();
/*!
* \brief setFile
* Load user selected subtitle. The subtitle will not change unless you manually setFile(QString()).
*/
void setFile(const QString& file);
QString file() const;
/*!
* \brief autoLoad
* Auto find and load a suitable external subtitle if file() is not empty.
*/
void setAutoLoad(bool value);
bool autoLoad() const;
Q_SIGNALS:
void autoLoadChanged(bool value);
void fileChanged();
public Q_SLOTS:
void onEnabledChanged(bool value);
private Q_SLOTS:
void onPlayerSourceChanged();
void onPlayerPositionChanged();
void onPlayerStart();
void tryReload();
void tryReloadInternalSub();
void updateInternalSubtitleTracks(const QVariantList& tracks);
void processInternalSubtitlePacket(int track, const FAV::Packet& packet);
void processInternalSubtitleHeader(const QByteArray &codec, const QByteArray& data); //TODO: remove
private:
void connectSignals();
void disconnectSignals();
void tryReload(int flag); //1: internal, 2: external, 3: internal+external
private:
bool m_auto;
bool m_enabled; // TODO: m_enable_external
AVPlayer *m_player;
Subtitle *m_sub;
QString m_file;
QVariantList m_tracks;
QVector<Packet> m_current_pkt;
};
#endif // #if !(DO_NOT_USE_SUBTITLE)
}
#endif // QTAV_PLAYERSUBTITLE_H