strawberry-audio-player-win.../src/engine/vlcengine.h

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2018-02-27 18:06:05 +01:00
/* This file is part of Clementine.
Clementine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clementine 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef VLCENGINE_H
#define VLCENGINE_H
#include "config.h"
#include "enginebase.h"
#include <vlc/vlc.h>
#include <boost/circular_buffer.hpp>
#include <QMutex>
class QTimer;
class TaskManager;
class VLCEngine : public Engine::Base {
Q_OBJECT
public:
VLCEngine(TaskManager *task_manager);
~VLCEngine();
bool Init();
virtual qint64 position_nanosec() const;
virtual qint64 length_nanosec() const;
bool CanDecode( const QUrl &url );
bool Load(const QUrl &url, Engine::TrackChangeFlags change, bool force_stop_at_end, quint64 beginning_nanosec, qint64 end_nanosec);
bool Play(quint64 offset_nanosec);
void Stop(bool stop_after = false);
void Pause();
void Unpause();
Engine::State state() const { return state_; }
uint position() const;
uint length() const;
void Seek(quint64 offset_nanosec);
static void SetScopeData(float* data, int size);
const Engine::Scope& Scope();
protected:
void SetVolumeSW(uint percent);
private:
void HandleErrors() const;
void AttachCallback(libvlc_event_manager_t* em, libvlc_event_type_t type, libvlc_callback_t callback);
static void StateChangedCallback(const libvlc_event_t* e, void* data);
private:
// The callbacks need access to this
static VLCEngine *sInstance;
// VLC bits and pieces
//libvlc_exception_t exception_;
libvlc_instance_t *instance_;
libvlc_media_player_t *player_;
// Our clementine_scope VLC plugin puts data in here
QMutex scope_mutex_;
boost::circular_buffer<float> scope_data_;
Engine::State state_;
};
#endif // VLCENGINE_H