87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2009, 2010, 2011, 2012, 2013, 2014 Max H. Parke KA1RBI
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_OP25_REPEATER_P25P1_VOICE_ENCODE_H
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#define INCLUDED_OP25_REPEATER_P25P1_VOICE_ENCODE_H
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#include <sys/time.h>
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#include <stdint.h>
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#include <vector>
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#include <deque>
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#include "op25_audio.h"
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#include "imbe_vocoder/imbe_vocoder.h"
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#include "imbe_decoder.h"
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#include "software_imbe_decoder.h"
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namespace gr {
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namespace op25_repeater {
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typedef std::vector<bool> bit_vector;
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class p25p1_voice_encode
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{
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private:
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// Nothing to declare in this block.
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public:
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p25p1_voice_encode(bool verbose_flag, int stretch_amt, const op25_audio& udp, bool raw_vectors_flag, std::deque<uint8_t> &_output_queue);
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~p25p1_voice_encode();
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void compress_samp(const int16_t * samp, int len);
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void set_gain_adjust(float gain_adjust);
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private:
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static const int RXBUF_MAX = 80;
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/* data items */
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int frame_cnt ;
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int write_bufp;
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char write_buf[512];
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struct timeval tv;
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struct timezone tz;
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struct timeval oldtv;
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int peak_amplitude;
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int peak;
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int samp_ct;
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char rxbuf[RXBUF_MAX];
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unsigned int codeword_ct ;
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int16_t sampbuf[FRAME];
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size_t sampbuf_ct ;
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int stretch_count ;
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bit_vector f_body;
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imbe_vocoder vocoder;
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const op25_audio& op25audio;
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std::deque<uint8_t> &output_queue;
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bool opt_dump_raw_vectors;
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bool opt_verbose;
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int opt_stretch_amt;
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int opt_stretch_sign;
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/* local methods */
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void append_imbe_codeword(bit_vector& frame_body, int16_t frame_vector[], unsigned int& codeword_ct);
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void compress_frame(int16_t snd[]);
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void add_sample(int16_t samp);
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};
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} // namespace op25_repeater
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} // namespace gr
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#endif /* INCLUDED_OP25_REPEATER_P25P1_VOICE_ENCODE_H */
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