#ifndef muz_SIGNAL_HPP
#define muz_SIGNAL_HPP

#include "commons.hpp"

namespace muz
{
  MUZ_ERROR(signal_error);

  /**
   * Audio signal interface.
   * @see Sine
   * @see Constant
   **/
  class Signal
  {
  public:
    explicit Signal();
    virtual ~Signal();

    /**
     * Get the next sample.
     * @return std::vector<float> of size N for a sample of N channels or an empty vector at end.
     *
     **/
    virtual std::vector<float> next() = 0;
  private:
  };
}

#endif