smtimeinfo.hh

// Licensed GNU LGPL v2.1 or later: http://www.gnu.org/licenses/lgpl-2.1.html
 
#pragma once
 
#include "smutils.hh"
 
namespace SpectMorph
{
 
class TimeInfo
{
public:
  double time_ms = 0;
  double ppq_pos = 0;
};
 
class TimeInfoGenerator
{
  double   m_tempo = 120;
  double   m_ppq_pos = 0;
  double   m_mix_freq = 0;
  double   m_max_ppq_pos = 0;
  double   m_min_ppq_pos = 0;
  double   m_next_min_ppq_pos = 0;
  double   m_max_time_ms = 0;
 
  uint64   m_audio_time_stamp = 0;
  uint     m_position = 0;
 
  double samples_to_beats (double samples) const;
  double samples_to_ms (double samples) const;
 
public:
  TimeInfoGenerator (double mix_freq);
 
  void start_block (uint64 audio_time_stamp, uint n_samples, double ppq_pos, double tempo);
  void update_time_stamp (uint64 audio_time_stamp);
 
  TimeInfo time_info (double offset_ms) const;
};
 
}