src/audio/au_none.c

/*************************************************************************/
/*                                                                       */
/*                  Language Technologies Institute                      */
/*                     Carnegie Mellon University                        */
/*                        Copyright (c) 2001                             */
/*                        All Rights Reserved.                           */
/*                                                                       */
/*  Permission is hereby granted, free of charge, to use and distribute  */
/*  this software and its documentation without restriction, including   */
/*  without limitation the rights to use, copy, modify, merge, publish,  */
/*  distribute, sublicense, and/or sell copies of this work, and to      */
/*  permit persons to whom this work is furnished to do so, subject to   */
/*  the following conditions:                                            */
/*   1. The code must retain the above copyright notice, this list of    */
/*      conditions and the following disclaimer.                         */
/*   2. Any modifications must be clearly marked as such.                */
/*   3. Original authors' names are not deleted.                         */
/*   4. The authors' names are not used to endorse or promote products   */
/*      derived from this software without specific prior written        */
/*      permission.                                                      */
/*                                                                       */
/*  CARNEGIE MELLON UNIVERSITY AND THE CONTRIBUTORS TO THIS WORK         */
/*  DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING      */
/*  ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT   */
/*  SHALL CARNEGIE MELLON UNIVERSITY NOR THE CONTRIBUTORS BE LIABLE      */
/*  FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES    */
/*  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN   */
/*  AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,          */
/*  ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF       */
/*  THIS SOFTWARE.                                                       */
/*                                                                       */
/*************************************************************************/
/*             Author:  Alan W Black (awb@cs.cmu.edu)                    */
/*               Date:  January 2001                                     */
/*************************************************************************/
/*                                                                       */
/*  Ain't got no direct audio                                            */
/*                                                                       */
/*************************************************************************/

#include "cst_string.h"
#include "cst_wave.h"
#include "cst_audio.h"

cst_audiodev * audio_open_none(int sps, int channels, int fmt)
{
    cst_audiodev *ad;

    ad = cst_alloc(cst_audiodev,1);
    ad->sps = ad->real_sps = sps;
    ad->channels = ad->real_channels = channels;
    ad->fmt = ad->real_fmt = fmt;
    return ad;
}

int audio_close_none(cst_audiodev *ad)
{
    if (ad)
	cst_free(ad);
    return 0;
}

int audio_write_none(cst_audiodev *ad, void *samples, int num_bytes)
{
    (void)ad;
    (void)samples;
    return num_bytes;
}

int audio_drain_none(cst_audiodev *ad)
{
    (void)ad;
    return 0;
}

int audio_flush_none(cst_audiodev *ad)
{
    (void)ad;
    return 0;
}