src/source.h


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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set et sw=2 ts=2: */
/***************************************************************************
 *            source.h
 *
 *  Thu Sep 25 10:35:39 CEST 2014
 *  Copyright 2014 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of LibAudioIO.
 *
 *  LibAudioIO is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *  
 *  LibAudioIO 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
 *  Lesser General Public License for more details.
 *  
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with LibAudioIO; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
#ifndef __LIBAUDIOIO_SOURCE_H__
#define __LIBAUDIOIO_SOURCE_H__

// Make API behave like ALSA 1.x.x with ALSA 0.9.x
#define ALSA_PCM_NEW_HW_PARAMS_API

#include <asoundlib.h>

class Source {
public:
  Source(snd_pcm_t *handle, unsigned int samplerate,
         unsigned int channels, snd_pcm_uframes_t frames);
  ~Source();

  int readSamples(char *pcm, size_t maxsize);

  unsigned int samplerate();
  unsigned int channels();
  snd_pcm_uframes_t frames();

private:
  snd_pcm_t *handle;

  unsigned int _samplerate;
  unsigned int _channels;
  snd_pcm_uframes_t _frames;
};

#endif/*__LIBAUDIOIO_SOURCE_H__*/