/* * libmad - MPEG audio decoder library * Copyright (C) 2000-2004 Underbit Technologies, Inc. * * 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 1.17 2004/01/23 09:41:32 rob 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,	/* continue normally */  MAD_FLOW_STOP     = 0x0010,	/* stop decoding normally */  MAD_FLOW_BREAK    = 0x0011,	/* stop decoding and signal an error */  MAD_FLOW_IGNORE   = 0x0020	/* ignore the current frame */};struct mad_decoder {  enum mad_decoder_mode mode;  int options;  struct {    long pid;    int in;    int out;  } async;  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 (*header_func)(void *, struct mad_header const *);  enum mad_flow (*filter_func)(void *,			       struct mad_stream const *, struct mad_frame *);  enum mad_flow (*output_func)(void *,			       struct mad_header const *, struct mad_pcm *);  enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);  enum mad_flow (*message_func)(void *, void *, unsigned int *);};void mad_decoder_init(struct mad_decoder *, void *,		      enum mad_flow (*)(void *, struct mad_stream *),		      enum mad_flow (*)(void *, struct mad_header const *),		      enum mad_flow (*)(void *,					struct mad_stream const *,					struct mad_frame *),		      enum mad_flow (*)(void *,					struct mad_header const *,					struct mad_pcm *),		      enum mad_flow (*)(void *,					struct mad_stream *,					struct mad_frame *),		      enum mad_flow (*)(void *, void *, unsigned int *));int mad_decoder_finish(struct mad_decoder *);# define mad_decoder_options(decoder, opts)  \    ((void) ((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