decoder.h
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- /*
- * libmad - MPEG audio decoder library
- * Copyright (C) 2000-2003 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 1.1 2003/08/31 18:59:46 gabest 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