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ffmpeg / libavcodec / liba52 / audio_out.h @ bb71e317

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/*
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 * audio_out.h
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 * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
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 * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
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 *
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 * This file is part of a52dec, a free ATSC A-52 stream decoder.
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 * See http://liba52.sourceforge.net/ for updates.
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 *
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 * a52dec is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * a52dec is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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typedef struct ao_instance_s ao_instance_t;
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struct ao_instance_s {
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    int (* setup) (ao_instance_t * instance, int sample_rate, int * flags,
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                   sample_t * level, sample_t * bias);
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    int (* play) (ao_instance_t * instance, int flags, sample_t * samples);
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    void (* close) (ao_instance_t * instance);
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};
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typedef ao_instance_t * ao_open_t (void);
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typedef struct ao_driver_s {
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    char * name;
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    ao_open_t * open;
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} ao_driver_t;
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/* return NULL terminated array of all drivers */
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ao_driver_t * ao_drivers (void);
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static inline ao_instance_t * ao_open (ao_open_t * open)
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{
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    return open ();
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}
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static inline int ao_setup (ao_instance_t * instance, int sample_rate,
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                            int * flags, sample_t * level, sample_t * bias)
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{
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    return instance->setup (instance, sample_rate, flags, level, bias);
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}
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static inline int ao_play (ao_instance_t * instance, int flags,
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                           sample_t * samples)
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{
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    return instance->play (instance, flags, samples);
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}
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static inline void ao_close (ao_instance_t * instance)
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{
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    if (instance->close)
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        instance->close (instance);
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}