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/*

 * mad - MPEG audio decoder

 * Copyright (C) 2000-2001 Robert Leslie

 *

 * This program 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.

 *

 * This program 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

 *

 * $Id: decoder.h,v 1.3 2001-11-06 17:01:28 simons Exp $

 */

# ifndef LIBMAD_DECODER_H

# define LIBMAD_DECODER_H

# include "stream.h"

# include "frame.h"

# include "synth.h"

enum mad_decoder_mode {

  MAD_DECODER_MODE_SYNC  = 0,

  MAD_DECODER_MODE_ASYNC

};

enum mad_flow {

  MAD_FLOW_CONTINUE = 0x0000,

  MAD_FLOW_STOP     = 0x0010,

  MAD_FLOW_BREAK    = 0x0011,

  MAD_FLOW_IGNORE   = 0x0020

};

struct mad_decoder {

  enum mad_decoder_mode mode;

  int options;

  struct {

    long pid;

    int in;

    int out;

  } async;

  struct dec_sync_struct {

    struct mad_stream stream;

    struct mad_frame frame;

    struct mad_synth synth;

  } *sync;

  void *cb_data;

  enum mad_flow (*input_func)(void *, struct mad_stream *);

  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);

};

void mad_decoder_init(struct mad_decoder *, void *,

                      enum mad_flow (*)(void *, struct mad_stream *),

                      enum mad_flow (*)(void *, struct mad_stream *, struct mad_frame *frame));

int mad_decoder_finish(struct mad_decoder *);

# define mad_decoder_options(decoder, opts)  ((decoder)->options = (opts))

int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);

int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);

# endif