/* -*- c++ -*- */
/*
 * Copyright 2011,2013 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 "alaw_encode_sb_impl.h"
#include <gnuradio/io_signature.h>
#include <limits.h>

namespace gr {
namespace vocoder {

extern "C" {
#include "g7xx/g72x.h"
}

alaw_encode_sb::sptr alaw_encode_sb::make()
{
    return gnuradio::get_initial_sptr(new alaw_encode_sb_impl());
}

alaw_encode_sb_impl::alaw_encode_sb_impl()
    : sync_block("avocoder_law_encode_sb",
                 io_signature::make(1, 1, sizeof(short)),
                 io_signature::make(1, 1, sizeof(unsigned char)))
{
}

alaw_encode_sb_impl::~alaw_encode_sb_impl() {}

int alaw_encode_sb_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++) {
        out[i] = linear2alaw(in[i]);
    }

    return noutput_items;
}

} /* namespace vocoder */
} /* namespace gr */
