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

huffman.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: huffman.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_HUFFMAN_H
Gruenfrosch 0:7627c79db971 23 # define LIBMAD_HUFFMAN_H
Gruenfrosch 0:7627c79db971 24
Gruenfrosch 0:7627c79db971 25 union huffquad {
Gruenfrosch 0:7627c79db971 26 struct {
Gruenfrosch 0:7627c79db971 27 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 28 unsigned short bits : 3;
Gruenfrosch 0:7627c79db971 29 unsigned short offset : 12;
Gruenfrosch 0:7627c79db971 30 } ptr;
Gruenfrosch 0:7627c79db971 31 struct {
Gruenfrosch 0:7627c79db971 32 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 33 unsigned short hlen : 3;
Gruenfrosch 0:7627c79db971 34 unsigned short v : 1;
Gruenfrosch 0:7627c79db971 35 unsigned short w : 1;
Gruenfrosch 0:7627c79db971 36 unsigned short x : 1;
Gruenfrosch 0:7627c79db971 37 unsigned short y : 1;
Gruenfrosch 0:7627c79db971 38 } value;
Gruenfrosch 0:7627c79db971 39 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 40 };
Gruenfrosch 0:7627c79db971 41
Gruenfrosch 0:7627c79db971 42 union huffpair {
Gruenfrosch 0:7627c79db971 43 struct {
Gruenfrosch 0:7627c79db971 44 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 45 unsigned short bits : 3;
Gruenfrosch 0:7627c79db971 46 unsigned short offset : 12;
Gruenfrosch 0:7627c79db971 47 } ptr;
Gruenfrosch 0:7627c79db971 48 struct {
Gruenfrosch 0:7627c79db971 49 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 50 unsigned short hlen : 3;
Gruenfrosch 0:7627c79db971 51 unsigned short x : 4;
Gruenfrosch 0:7627c79db971 52 unsigned short y : 4;
Gruenfrosch 0:7627c79db971 53 } value;
Gruenfrosch 0:7627c79db971 54 unsigned short final : 1;
Gruenfrosch 0:7627c79db971 55 };
Gruenfrosch 0:7627c79db971 56
Gruenfrosch 0:7627c79db971 57 struct hufftable {
Gruenfrosch 0:7627c79db971 58 union huffpair const *table;
Gruenfrosch 0:7627c79db971 59 unsigned short linbits;
Gruenfrosch 0:7627c79db971 60 unsigned short startbits;
Gruenfrosch 0:7627c79db971 61 };
Gruenfrosch 0:7627c79db971 62
Gruenfrosch 0:7627c79db971 63 extern union huffquad const *const mad_huff_quad_table[2];
Gruenfrosch 0:7627c79db971 64 extern struct hufftable const mad_huff_pair_table[32];
Gruenfrosch 0:7627c79db971 65
Gruenfrosch 0:7627c79db971 66 # endif