mirror of
https://github.com/cookiengineer/audacity
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92 lines
2.8 KiB
C
92 lines
2.8 KiB
C
/*
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* libmad - MPEG audio decoder library
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* Copyright (C) 2000-2004 Underbit Technologies, Inc.
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*
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* This program 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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* This program 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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* $Id: decoder.h,v 1.2 2005-09-12 07:01:30 dmazzoni Exp $
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*/
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# ifndef LIBMAD_DECODER_H
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# define LIBMAD_DECODER_H
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# include "stream.h"
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# include "frame.h"
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# include "synth.h"
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enum mad_decoder_mode {
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MAD_DECODER_MODE_SYNC = 0,
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MAD_DECODER_MODE_ASYNC
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};
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enum mad_flow {
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MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
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MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
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MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
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MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
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};
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struct mad_decoder {
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enum mad_decoder_mode mode;
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int options;
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struct {
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long pid;
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int in;
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int out;
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} async;
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struct {
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struct mad_stream stream;
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struct mad_frame frame;
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struct mad_synth synth;
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} *sync;
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void *cb_data;
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enum mad_flow (*input_func)(void *, struct mad_stream *);
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enum mad_flow (*header_func)(void *, struct mad_header const *);
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enum mad_flow (*filter_func)(void *,
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struct mad_stream const *, struct mad_frame *);
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enum mad_flow (*output_func)(void *,
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struct mad_header const *, struct mad_pcm *);
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enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
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enum mad_flow (*message_func)(void *, void *, unsigned int *);
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};
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void mad_decoder_init(struct mad_decoder *, void *,
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enum mad_flow (*)(void *, struct mad_stream *),
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enum mad_flow (*)(void *, struct mad_header const *),
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enum mad_flow (*)(void *,
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struct mad_stream const *,
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struct mad_frame *),
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enum mad_flow (*)(void *,
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struct mad_header const *,
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struct mad_pcm *),
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enum mad_flow (*)(void *,
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struct mad_stream *,
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struct mad_frame *),
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enum mad_flow (*)(void *, void *, unsigned int *));
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int mad_decoder_finish(struct mad_decoder *);
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# define mad_decoder_options(decoder, opts) \
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((void) ((decoder)->options = (opts)))
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int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
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int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
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# endif
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