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/*
* Copyright 2003-2021 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_TIMER_HXX
#define MPD_TIMER_HXX
#include <chrono>
struct AudioFormat;
class Timer {
typedef std::chrono::microseconds Time;
Time time;
bool started = false;
const int rate;
public:
explicit Timer(AudioFormat af);
bool IsStarted() const { return started; }
void Start();
void Reset();
void Add(size_t size);
/**
* Returns the duration to sleep to get back to sync.
*/
std::chrono::steady_clock::duration GetDelay() const;
private:
static Time Now() {
return std::chrono::duration_cast<Time>(std::chrono::steady_clock::now().time_since_epoch());
}
};
#endif
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