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/* -*- c++ -*- */
/*
* Copyright 2005,2010,2013,2016 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#define GSM_SAMPLES_PER_FRAME 160
#include "gsm_fr_encode_sp_impl.h"
#include <gnuradio/io_signature.h>
#include <stdexcept>
namespace gr {
namespace vocoder {
gsm_fr_encode_sp::sptr gsm_fr_encode_sp::make()
{
return gnuradio::make_block_sptr<gsm_fr_encode_sp_impl>();
}
gsm_fr_encode_sp_impl::gsm_fr_encode_sp_impl()
: sync_decimator("vocoder_gsm_fr_encode_sp",
io_signature::make(1, 1, sizeof(short)),
io_signature::make(1, 1, sizeof(gsm_frame)),
GSM_SAMPLES_PER_FRAME)
{
if ((d_gsm = gsm_create()) == 0)
throw std::runtime_error("gsm_fr_encode_sp_impl: gsm_create failed");
}
gsm_fr_encode_sp_impl::~gsm_fr_encode_sp_impl() { gsm_destroy(d_gsm); }
int gsm_fr_encode_sp_impl::work(int noutput_items,
gr_vector_const_void_star& input_items,
gr_vector_void_star& output_items)
{
const short* in = (const short*)input_items[0];
unsigned char* out = (unsigned char*)output_items[0];
for (int i = 0; i < noutput_items; i++) {
gsm_encode(d_gsm, const_cast<short*>(in), out);
in += GSM_SAMPLES_PER_FRAME;
out += sizeof(gsm_frame);
}
return noutput_items;
}
} /* namespace vocoder */
} /* namespace gr */
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