Andreas Grün / Mbed 2 deprecated madplayer

MP3 Player without external hardware MP3 Player without external hardware. A software based MP3 player based on a modified version of libmad. Mono output (at the moment) via AnalogOut. Files are read from an USB drive. This is a demo program, it plays only one file at the moment. Documentation is in "main.cpp" and "config.h"

Dependencies:   mbed

decoder.h@2:f28cf0afd021, 2010-11-27 (annotated)

Committer:
Gruenfrosch
Date:
Sat Nov 27 17:27:33 2010 +0000
Revision:
2:f28cf0afd021
Parent:
0:7627c79db971 
Version 3:

 * moved another memory block into AHB RAM, giving more room for

 * stereo buffer.

 * moved content of decode() to main()

 * decoding	is now safe to be called multiple times (bug in older versions)

 * Output routine now fills stereo buffer, DAC output sums channels,

 * just for demonstration that stereo output could go here

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Gruenfrosch 0:7627c79db971 1 /*
Gruenfrosch 0:7627c79db971 2 * libmad - MPEG audio decoder library
Gruenfrosch 0:7627c79db971 3 * Copyright (C) 2000-2004 Underbit Technologies, Inc.
Gruenfrosch 0:7627c79db971 4 *
Gruenfrosch 0:7627c79db971 5 * This program is free software; you can redistribute it and/or modify
Gruenfrosch 0:7627c79db971 6 * it under the terms of the GNU General Public License as published by
Gruenfrosch 0:7627c79db971 7 * the Free Software Foundation; either version 2 of the License, or
Gruenfrosch 0:7627c79db971 8 * (at your option) any later version.
Gruenfrosch 0:7627c79db971 9 *
Gruenfrosch 0:7627c79db971 10 * This program is distributed in the hope that it will be useful,
Gruenfrosch 0:7627c79db971 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Gruenfrosch 0:7627c79db971 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Gruenfrosch 0:7627c79db971 13 * GNU General Public License for more details.
Gruenfrosch 0:7627c79db971 14 *
Gruenfrosch 0:7627c79db971 15 * You should have received a copy of the GNU General Public License
Gruenfrosch 0:7627c79db971 16 * along with this program; if not, write to the Free Software
Gruenfrosch 0:7627c79db971 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Gruenfrosch 0:7627c79db971 18 *
Gruenfrosch 0:7627c79db971 19 * $Id: decoder.h,v 1.1 2010/11/23 20:12:57 andy Exp $
Gruenfrosch 0:7627c79db971 20 */
Gruenfrosch 0:7627c79db971 21
Gruenfrosch 0:7627c79db971 22 # ifndef LIBMAD_DECODER_H
Gruenfrosch 0:7627c79db971 23 # define LIBMAD_DECODER_H
Gruenfrosch 0:7627c79db971 24
Gruenfrosch 0:7627c79db971 25 # include "stream.h"
Gruenfrosch 0:7627c79db971 26 # include "frame.h"
Gruenfrosch 0:7627c79db971 27 # include "synth.h"
Gruenfrosch 0:7627c79db971 28
Gruenfrosch 0:7627c79db971 29 enum mad_decoder_mode {
Gruenfrosch 0:7627c79db971 30 MAD_DECODER_MODE_SYNC = 0,
Gruenfrosch 0:7627c79db971 31 MAD_DECODER_MODE_ASYNC
Gruenfrosch 0:7627c79db971 32 };
Gruenfrosch 0:7627c79db971 33
Gruenfrosch 0:7627c79db971 34 enum mad_flow {
Gruenfrosch 0:7627c79db971 35 MAD_FLOW_CONTINUE = 0x0000, /* continue normally */
Gruenfrosch 0:7627c79db971 36 MAD_FLOW_STOP = 0x0010, /* stop decoding normally */
Gruenfrosch 0:7627c79db971 37 MAD_FLOW_BREAK = 0x0011, /* stop decoding and signal an error */
Gruenfrosch 0:7627c79db971 38 MAD_FLOW_IGNORE = 0x0020 /* ignore the current frame */
Gruenfrosch 0:7627c79db971 39 };
Gruenfrosch 0:7627c79db971 40
Gruenfrosch 0:7627c79db971 41 struct mad_sync_s {
Gruenfrosch 0:7627c79db971 42 struct mad_stream stream;
Gruenfrosch 0:7627c79db971 43 struct mad_frame frame;
Gruenfrosch 0:7627c79db971 44 struct mad_synth *synth;
Gruenfrosch 0:7627c79db971 45 };
Gruenfrosch 0:7627c79db971 46
Gruenfrosch 0:7627c79db971 47 struct mad_decoder {
Gruenfrosch 0:7627c79db971 48 enum mad_decoder_mode mode;
Gruenfrosch 0:7627c79db971 49
Gruenfrosch 0:7627c79db971 50 int options;
Gruenfrosch 0:7627c79db971 51
Gruenfrosch 0:7627c79db971 52 struct mad_sync_s *sync;
Gruenfrosch 0:7627c79db971 53
Gruenfrosch 0:7627c79db971 54 void *cb_data;
Gruenfrosch 0:7627c79db971 55
Gruenfrosch 0:7627c79db971 56 enum mad_flow (*input_func)(void *, struct mad_stream *);
Gruenfrosch 0:7627c79db971 57 enum mad_flow (*header_func)(void *, struct mad_header const *);
Gruenfrosch 0:7627c79db971 58 enum mad_flow (*filter_func)(void *,
Gruenfrosch 0:7627c79db971 59 struct mad_stream const *, struct mad_frame *);
Gruenfrosch 0:7627c79db971 60 enum mad_flow (*output_func)(void *,
Gruenfrosch 0:7627c79db971 61 struct mad_header const *, struct mad_pcm *);
Gruenfrosch 0:7627c79db971 62 enum mad_flow (*error_func)(void *, struct mad_stream *, struct mad_frame *);
Gruenfrosch 0:7627c79db971 63 enum mad_flow (*message_func)(void *, void *, unsigned int *);
Gruenfrosch 0:7627c79db971 64 };
Gruenfrosch 0:7627c79db971 65
Gruenfrosch 0:7627c79db971 66 void mad_decoder_init(struct mad_decoder *, void *,
Gruenfrosch 0:7627c79db971 67 enum mad_flow (*)(void *, struct mad_stream *),
Gruenfrosch 0:7627c79db971 68 enum mad_flow (*)(void *, struct mad_header const *),
Gruenfrosch 0:7627c79db971 69 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 70 struct mad_stream const *,
Gruenfrosch 0:7627c79db971 71 struct mad_frame *),
Gruenfrosch 0:7627c79db971 72 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 73 struct mad_header const *,
Gruenfrosch 0:7627c79db971 74 struct mad_pcm *),
Gruenfrosch 0:7627c79db971 75 enum mad_flow (*)(void *,
Gruenfrosch 0:7627c79db971 76 struct mad_stream *,
Gruenfrosch 0:7627c79db971 77 struct mad_frame *),
Gruenfrosch 0:7627c79db971 78 enum mad_flow (*)(void *, void *, unsigned int *));
Gruenfrosch 0:7627c79db971 79 int mad_decoder_finish(struct mad_decoder *);
Gruenfrosch 0:7627c79db971 80
Gruenfrosch 0:7627c79db971 81 # define mad_decoder_options(decoder, opts) \
Gruenfrosch 0:7627c79db971 82 ((void) ((decoder)->options = (opts)))
Gruenfrosch 0:7627c79db971 83
Gruenfrosch 0:7627c79db971 84 int mad_decoder_run(struct mad_decoder *, enum mad_decoder_mode);
Gruenfrosch 0:7627c79db971 85 int mad_decoder_message(struct mad_decoder *, void *, unsigned int *);
Gruenfrosch 0:7627c79db971 86
Gruenfrosch 0:7627c79db971 87 # endif