/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            opusdecoder.cc
 *
 *  Sat Sep 20 11:15:23 CEST 2014
 *  Copyright 2014 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of SimpleRTP.
 *
 *  SimpleRTP 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.
 *
 *  SimpleRTP 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 SimpleRTP; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "opusdecoder.h"

#include "mediaconfig.h"

OpusDecoder::OpusDecoder()
{
  int err;
  decoder = opus_decoder_create(SAMPLERATE, 1, &err);
  if(err) printf("opus_decoder_create: %d\n", err);
}

OpusDecoder::~OpusDecoder()
{
  if(decoder) opus_decoder_destroy(decoder);
}

int OpusDecoder::decode(Frame frame, char *pcm, size_t size)
{
  if(!decoder) {
    printf("Missing opus decoder handle\n");
    return 0;
  }

  int res = opus_decode(decoder,
                        (const unsigned char*)frame.data, frame.size,
                        (opus_int16*)pcm, size, 0);
  if(res >= 0) return res * sizeof(short);
  printf("opus_decode: %d\n", res);
}