tarina

git clone https://git.tarina.org/tarina
Log | Files | Refs | README | LICENSE

bat-signal.h (1262B)

      1 /*
      2  * Copyright (C) 2015 Caleb Crome
      3  * Copyright (C) 2013-2015 Intel Corporation
      4  *
      5  * This program is free software; you can redistribute it and/or modify
      6  * it under the terms of the GNU General Public License as published by
      7  * the Free Software Foundation; either version 2 of the License, or
      8  * (at your option) any later version.
      9  *
     10  * This program is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13  * GNU General Public License for more details.
     14  *
     15  */
     16 
     17 /*
     18  * Here's a generic sine wave generator that will work indefinitely
     19  * for any frequency.
     20  *
     21  * Note:  the state & phasor are stored as doubles (and updated as
     22  * doubles) because after a million samples the magnitude drifts a
     23  * bit.  If we really need floats, it can be done with periodic
     24  * renormalization of the state_real+state_imag magnitudes.
     25  */
     26 
     27 int sin_generator_init(struct sin_generator *, float, float, float);
     28 float sin_generator_next_sample(struct sin_generator *);
     29 void sin_generator_vfill(struct sin_generator *, float *, int);
     30 int generate_sine_wave(struct bat *, int, void *);
     31 int generate_sine_wave_raw_mono(struct bat *, float *, float, int);