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

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: imdct_s.c,v 1.1 2010/11/23 20:12:57 andy Exp $
Gruenfrosch 0:7627c79db971 20 */
Gruenfrosch 0:7627c79db971 21
Gruenfrosch 0:7627c79db971 22 /* 0 */ { MAD_F(0x09bd7ca0) /* 0.608761429 */,
Gruenfrosch 0:7627c79db971 23 -MAD_F(0x0ec835e8) /* -0.923879533 */,
Gruenfrosch 0:7627c79db971 24 -MAD_F(0x0216a2a2) /* -0.130526192 */,
Gruenfrosch 0:7627c79db971 25 MAD_F(0x0fdcf549) /* 0.991444861 */,
Gruenfrosch 0:7627c79db971 26 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 27 -MAD_F(0x0cb19346) /* -0.793353340 */ },
Gruenfrosch 0:7627c79db971 28
Gruenfrosch 0:7627c79db971 29 /* 6 */ { -MAD_F(0x0cb19346) /* -0.793353340 */,
Gruenfrosch 0:7627c79db971 30 MAD_F(0x061f78aa) /* 0.382683432 */,
Gruenfrosch 0:7627c79db971 31 MAD_F(0x0fdcf549) /* 0.991444861 */,
Gruenfrosch 0:7627c79db971 32 MAD_F(0x0216a2a2) /* 0.130526192 */,
Gruenfrosch 0:7627c79db971 33 -MAD_F(0x0ec835e8) /* -0.923879533 */,
Gruenfrosch 0:7627c79db971 34 -MAD_F(0x09bd7ca0) /* -0.608761429 */ },
Gruenfrosch 0:7627c79db971 35
Gruenfrosch 0:7627c79db971 36 /* 1 */ { MAD_F(0x061f78aa) /* 0.382683432 */,
Gruenfrosch 0:7627c79db971 37 -MAD_F(0x0ec835e8) /* -0.923879533 */,
Gruenfrosch 0:7627c79db971 38 MAD_F(0x0ec835e8) /* 0.923879533 */,
Gruenfrosch 0:7627c79db971 39 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 40 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 41 MAD_F(0x0ec835e8) /* 0.923879533 */ },
Gruenfrosch 0:7627c79db971 42
Gruenfrosch 0:7627c79db971 43 /* 7 */ { -MAD_F(0x0ec835e8) /* -0.923879533 */,
Gruenfrosch 0:7627c79db971 44 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 45 MAD_F(0x061f78aa) /* 0.382683432 */,
Gruenfrosch 0:7627c79db971 46 MAD_F(0x0ec835e8) /* 0.923879533 */,
Gruenfrosch 0:7627c79db971 47 MAD_F(0x0ec835e8) /* 0.923879533 */,
Gruenfrosch 0:7627c79db971 48 MAD_F(0x061f78aa) /* 0.382683432 */ },
Gruenfrosch 0:7627c79db971 49
Gruenfrosch 0:7627c79db971 50 /* 2 */ { MAD_F(0x0216a2a2) /* 0.130526192 */,
Gruenfrosch 0:7627c79db971 51 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 52 MAD_F(0x09bd7ca0) /* 0.608761429 */,
Gruenfrosch 0:7627c79db971 53 -MAD_F(0x0cb19346) /* -0.793353340 */,
Gruenfrosch 0:7627c79db971 54 MAD_F(0x0ec835e8) /* 0.923879533 */,
Gruenfrosch 0:7627c79db971 55 -MAD_F(0x0fdcf549) /* -0.991444861 */ },
Gruenfrosch 0:7627c79db971 56
Gruenfrosch 0:7627c79db971 57 /* 8 */ { -MAD_F(0x0fdcf549) /* -0.991444861 */,
Gruenfrosch 0:7627c79db971 58 -MAD_F(0x0ec835e8) /* -0.923879533 */,
Gruenfrosch 0:7627c79db971 59 -MAD_F(0x0cb19346) /* -0.793353340 */,
Gruenfrosch 0:7627c79db971 60 -MAD_F(0x09bd7ca0) /* -0.608761429 */,
Gruenfrosch 0:7627c79db971 61 -MAD_F(0x061f78aa) /* -0.382683432 */,
Gruenfrosch 0:7627c79db971 62 -MAD_F(0x0216a2a2) /* -0.130526192 */ }