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

qc_table.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: qc_table.c,v 1.1 2010/11/23 20:12:57 andy Exp $
Gruenfrosch 0:7627c79db971 20 */
Gruenfrosch 0:7627c79db971 21
Gruenfrosch 0:7627c79db971 22 /*
Gruenfrosch 0:7627c79db971 23 * These are the Layer II classes of quantization.
Gruenfrosch 0:7627c79db971 24 * The table is derived from Table B.4 of ISO/IEC 11172-3.
Gruenfrosch 0:7627c79db971 25 */
Gruenfrosch 0:7627c79db971 26
Gruenfrosch 0:7627c79db971 27 { 3, 2, 5,
Gruenfrosch 0:7627c79db971 28 MAD_F(0x15555555) /* 1.33333333333 => 1.33333333209, e 0.00000000124 */,
Gruenfrosch 0:7627c79db971 29 MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 30 { 5, 3, 7,
Gruenfrosch 0:7627c79db971 31 MAD_F(0x1999999a) /* 1.60000000000 => 1.60000000149, e -0.00000000149 */,
Gruenfrosch 0:7627c79db971 32 MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 33 { 7, 0, 3,
Gruenfrosch 0:7627c79db971 34 MAD_F(0x12492492) /* 1.14285714286 => 1.14285714179, e 0.00000000107 */,
Gruenfrosch 0:7627c79db971 35 MAD_F(0x04000000) /* 0.25000000000 => 0.25000000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 36 { 9, 4, 10,
Gruenfrosch 0:7627c79db971 37 MAD_F(0x1c71c71c) /* 1.77777777777 => 1.77777777612, e 0.00000000165 */,
Gruenfrosch 0:7627c79db971 38 MAD_F(0x08000000) /* 0.50000000000 => 0.50000000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 39 { 15, 0, 4,
Gruenfrosch 0:7627c79db971 40 MAD_F(0x11111111) /* 1.06666666666 => 1.06666666642, e 0.00000000024 */,
Gruenfrosch 0:7627c79db971 41 MAD_F(0x02000000) /* 0.12500000000 => 0.12500000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 42 { 31, 0, 5,
Gruenfrosch 0:7627c79db971 43 MAD_F(0x10842108) /* 1.03225806452 => 1.03225806355, e 0.00000000097 */,
Gruenfrosch 0:7627c79db971 44 MAD_F(0x01000000) /* 0.06250000000 => 0.06250000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 45 { 63, 0, 6,
Gruenfrosch 0:7627c79db971 46 MAD_F(0x10410410) /* 1.01587301587 => 1.01587301493, e 0.00000000094 */,
Gruenfrosch 0:7627c79db971 47 MAD_F(0x00800000) /* 0.03125000000 => 0.03125000000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 48 { 127, 0, 7,
Gruenfrosch 0:7627c79db971 49 MAD_F(0x10204081) /* 1.00787401575 => 1.00787401572, e 0.00000000003 */,
Gruenfrosch 0:7627c79db971 50 MAD_F(0x00400000) /* 0.01562500000 => 0.01562500000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 51 { 255, 0, 8,
Gruenfrosch 0:7627c79db971 52 MAD_F(0x10101010) /* 1.00392156863 => 1.00392156839, e 0.00000000024 */,
Gruenfrosch 0:7627c79db971 53 MAD_F(0x00200000) /* 0.00781250000 => 0.00781250000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 54 { 511, 0, 9,
Gruenfrosch 0:7627c79db971 55 MAD_F(0x10080402) /* 1.00195694716 => 1.00195694715, e 0.00000000001 */,
Gruenfrosch 0:7627c79db971 56 MAD_F(0x00100000) /* 0.00390625000 => 0.00390625000, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 57 { 1023, 0, 10,
Gruenfrosch 0:7627c79db971 58 MAD_F(0x10040100) /* 1.00097751711 => 1.00097751617, e 0.00000000094 */,
Gruenfrosch 0:7627c79db971 59 MAD_F(0x00080000) /* 0.00195312500 => 0.00195312500, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 60 { 2047, 0, 11,
Gruenfrosch 0:7627c79db971 61 MAD_F(0x10020040) /* 1.00048851979 => 1.00048851967, e 0.00000000012 */,
Gruenfrosch 0:7627c79db971 62 MAD_F(0x00040000) /* 0.00097656250 => 0.00097656250, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 63 { 4095, 0, 12,
Gruenfrosch 0:7627c79db971 64 MAD_F(0x10010010) /* 1.00024420024 => 1.00024420023, e 0.00000000001 */,
Gruenfrosch 0:7627c79db971 65 MAD_F(0x00020000) /* 0.00048828125 => 0.00048828125, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 66 { 8191, 0, 13,
Gruenfrosch 0:7627c79db971 67 MAD_F(0x10008004) /* 1.00012208522 => 1.00012208521, e 0.00000000001 */,
Gruenfrosch 0:7627c79db971 68 MAD_F(0x00010000) /* 0.00024414063 => 0.00024414062, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 69 { 16383, 0, 14,
Gruenfrosch 0:7627c79db971 70 MAD_F(0x10004001) /* 1.00006103888 => 1.00006103888, e -0.00000000000 */,
Gruenfrosch 0:7627c79db971 71 MAD_F(0x00008000) /* 0.00012207031 => 0.00012207031, e -0.00000000000 */ },
Gruenfrosch 0:7627c79db971 72 { 32767, 0, 15,
Gruenfrosch 0:7627c79db971 73 MAD_F(0x10002000) /* 1.00003051851 => 1.00003051758, e 0.00000000093 */,
Gruenfrosch 0:7627c79db971 74 MAD_F(0x00004000) /* 0.00006103516 => 0.00006103516, e 0.00000000000 */ },
Gruenfrosch 0:7627c79db971 75 { 65535, 0, 16,
Gruenfrosch 0:7627c79db971 76 MAD_F(0x10001000) /* 1.00001525902 => 1.00001525879, e 0.00000000023 */,
Gruenfrosch 0:7627c79db971 77 MAD_F(0x00002000) /* 0.00003051758 => 0.00003051758, e 0.00000000000 */ }