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/* -*- c++ -*- */
/*
* Copyright 2011 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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 3, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <vocoder_g721_decode_bs.h>
#include <gr_io_signature.h>
#include <limits.h>
extern "C" {
#include "g7xx/g72x.h"
}
class vocoder_g721_decode_bs_impl : public vocoder_g721_decode_bs
{
public:
vocoder_g721_decode_bs_impl();
~vocoder_g721_decode_bs_impl();
int work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items);
private:
g72x_state d_state;
};
vocoder_g721_decode_bs_sptr vocoder_make_g721_decode_bs()
{
return gnuradio::get_initial_sptr(new vocoder_g721_decode_bs_impl());
}
vocoder_g721_decode_bs_impl::vocoder_g721_decode_bs_impl()
: gr_sync_block("vocoder_g721_decode_bs",
gr_make_io_signature (1, 1, sizeof (unsigned char)),
gr_make_io_signature (1, 1, sizeof (short)))
{
g72x_init_state(&d_state);
}
vocoder_g721_decode_bs_impl::~vocoder_g721_decode_bs_impl()
{
}
int
vocoder_g721_decode_bs_impl::work(int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items)
{
const unsigned char *in = (const unsigned char *)input_items[0];
short *out = (short *)output_items[0];
for(int i = 0; i < noutput_items; i++)
out[i] = g721_decoder(in[i], AUDIO_ENCODING_LINEAR, &d_state);
return noutput_items;
}
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