/*

 * audio_out_null.c

 * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>

 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>

 *

 * This file is part of a52dec, a free ATSC A-52 stream decoder.

 * See http://liba52.sourceforge.net/ for updates.

 *

 * a52dec 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.

 *

 * a52dec 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 this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 */

#include "config.h"

#include <inttypes.h>

#include "a52.h"

#include "audio_out.h"

typedef struct null_instance_s {

    ao_instance_t ao;

    int channels;

} null_instance_t;

static int null_setup (ao_instance_t * _instance, int sample_rate, int * flags,

		       sample_t * level, sample_t * bias)

{

    null_instance_t * instance = (null_instance_t *) _instance;

    *flags = instance->channels;

    *level = 1;

    *bias = 0;

    return 0;

}

static int null_play (ao_instance_t * instance, int flags, sample_t * samples)

{

    return 0;

}

static void null_close (ao_instance_t * instance)

{

}

static null_instance_t instance = {{null_setup, null_play, null_close}, 0};

ao_instance_t * ao_null_open (void)

{

    instance.channels = A52_STEREO;

    return (ao_instance_t *) &instance;

}

ao_instance_t * ao_null4_open (void)

{

    instance.channels = A52_2F2R;

    return (ao_instance_t *) &instance;

}

ao_instance_t * ao_null6_open (void)

{

    instance.channels = A52_3F2R | A52_LFE;

    return (ao_instance_t *) &instance;

}