/*
 * audio_out.h
 * Copyright (C) 2000-2003 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

typedef struct ao_instance_s ao_instance_t;

struct ao_instance_s {
    int (* setup) (ao_instance_t * instance, int sample_rate, int * flags,
		   level_t * level, sample_t * bias);
    int (* play) (ao_instance_t * instance, int flags, sample_t * samples);
    void (* close) (ao_instance_t * instance);
};

typedef ao_instance_t * ao_open_t (void);

typedef struct ao_driver_s {
    const char * name;
    ao_open_t * open;
} ao_driver_t;

/* return NULL terminated array of all drivers */
ao_driver_t * ao_drivers (void);