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Diffstat (limited to 'src/audio/freq_gen.h')
-rw-r--r-- | src/audio/freq_gen.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/audio/freq_gen.h b/src/audio/freq_gen.h new file mode 100644 index 0000000..5659739 --- /dev/null +++ b/src/audio/freq_gen.h @@ -0,0 +1,48 @@ +/* + Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com> + + 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +// Frequency generator +// +// This file contains definitions of the frequency generator. +// The frequency generator generates tones build from a list of +// frequencies. + +#ifndef _FREQ_GEN_H +#define _FREQ_GEN_H + +#include <vector> +#include <cc++/config.h> + +using namespace std; + +class t_freq_gen { +private: + vector<uint16> _frequencies; + int16 _amplitude; + +public: + t_freq_gen(vector<uint16> frequencies, int8 db_level); + t_freq_gen(uint8 dtmf, int8 db_level); + + // Get sound sample on a particular timestamp in us. + int16 get_sample(uint32 ts_usec) const; + void get_samples(int16 *sample_buf, uint16 buf_len, + uint32 ts_start, double interval) const; +}; + +#endif |