Kojo / Mbed 2 deprecated RTOS-VS1053b-mp3_v01

My first attempt of Thread based mp3 player with mbed RTOS *player thread *volume control thread

Dependencies:   mbed VS1053b

Thread_mp3/main_mp3.cpp@1:4d5a54104bbb, 2012-03-19 (annotated)

Committer:
takashikojo
Date:
Mon Mar 19 12:00:14 2012 +0000
Revision:
1:4d5a54104bbb
Parent:
0:82078eeba8ba 
Thread based mp3 player with mbed RTOS

Who changed what in which revision?

UserRevisionLine numberNew contents of line
takashikojo 0:82078eeba8ba 1 /* mbed MP3 Shield Player - Testapplication for VLSI VS1053b Lib
takashikojo 0:82078eeba8ba 2 * Copyright (c) 2010 Christian Schmiljun
takashikojo 0:82078eeba8ba 3 *
takashikojo 0:82078eeba8ba 4 * Permission is hereby granted, free of charge, to any person obtaining a copy
takashikojo 0:82078eeba8ba 5 * of this software and associated documentation files (the "Software"), to deal
takashikojo 0:82078eeba8ba 6 * in the Software without restriction, including without limitation the rights
takashikojo 0:82078eeba8ba 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
takashikojo 0:82078eeba8ba 8 * copies of the Software, and to permit persons to whom the Software is
takashikojo 0:82078eeba8ba 9 * furnished to do so, subject to the following conditions:
takashikojo 0:82078eeba8ba 10 *
takashikojo 0:82078eeba8ba 11 * The above copyright notice and this permission notice shall be included in
takashikojo 0:82078eeba8ba 12 * all copies or substantial portions of the Software.
takashikojo 0:82078eeba8ba 13 *
takashikojo 0:82078eeba8ba 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
takashikojo 0:82078eeba8ba 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
takashikojo 0:82078eeba8ba 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
takashikojo 0:82078eeba8ba 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
takashikojo 0:82078eeba8ba 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
takashikojo 0:82078eeba8ba 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
takashikojo 0:82078eeba8ba 20 * THE SOFTWARE.
takashikojo 0:82078eeba8ba 21 */
takashikojo 0:82078eeba8ba 22
takashikojo 0:82078eeba8ba 23
takashikojo 0:82078eeba8ba 24 #include "mbed.h"
takashikojo 0:82078eeba8ba 25 #include "rtos.h"
takashikojo 0:82078eeba8ba 26
takashikojo 0:82078eeba8ba 27 #include "defines.h"
takashikojo 0:82078eeba8ba 28 #include "VS1053.h"
takashikojo 0:82078eeba8ba 29
takashikojo 0:82078eeba8ba 30
takashikojo 0:82078eeba8ba 31 // Volume [ 0x0000 (loud) .. 0xFEFE (quiet) ]
takashikojo 0:82078eeba8ba 32 #define VOLUME -22.0f
takashikojo 0:82078eeba8ba 33 // Switch for local filesystem or SDCard
takashikojo 0:82078eeba8ba 34 // #define USE_SDCARD
takashikojo 0:82078eeba8ba 35
takashikojo 0:82078eeba8ba 36 // ----------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 37 //
takashikojo 0:82078eeba8ba 38 // Pin Assigenment for SDCard on Cool Components Workshop Board
takashikojo 0:82078eeba8ba 39 //
takashikojo 0:82078eeba8ba 40 // SDCard | mbed Side
takashikojo 0:82078eeba8ba 41 // ---------------------------------------
takashikojo 0:82078eeba8ba 42 // mosi-----------------5
takashikojo 0:82078eeba8ba 43 // miso-----------------6
takashikojo 0:82078eeba8ba 44 // sclk-----------------7
takashikojo 0:82078eeba8ba 45 // cs-------------------8
takashikojo 0:82078eeba8ba 46 //
takashikojo 0:82078eeba8ba 47 // ----------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 48 #ifdef USE_SDCARD
takashikojo 0:82078eeba8ba 49 #include "SDFileSystem.h"
takashikojo 0:82078eeba8ba 50 SDFileSystem sd(p5, p6, p7, p8, "sd");
takashikojo 0:82078eeba8ba 51 #define DIR_NAME "/sd/Musik"
takashikojo 0:82078eeba8ba 52 #endif
takashikojo 0:82078eeba8ba 53
takashikojo 0:82078eeba8ba 54 #ifdef LOCAL_FILE
takashikojo 0:82078eeba8ba 55 LocalFileSystem sd("local");
takashikojo 0:82078eeba8ba 56 #define DIR_NAME "/local"
takashikojo 0:82078eeba8ba 57 #endif
takashikojo 0:82078eeba8ba 58
takashikojo 0:82078eeba8ba 59 #define MSC_FILE
takashikojo 0:82078eeba8ba 60 #ifdef MSC_FILE
takashikojo 0:82078eeba8ba 61 #include "MSCFileSystem.h"
takashikojo 0:82078eeba8ba 62 MSCFileSystem sd("msc");
takashikojo 0:82078eeba8ba 63 #define DIR_NAME "/msc"
takashikojo 0:82078eeba8ba 64 #endif
takashikojo 0:82078eeba8ba 65
takashikojo 0:82078eeba8ba 66
takashikojo 0:82078eeba8ba 67
takashikojo 0:82078eeba8ba 68 // ----------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 69 //
takashikojo 0:82078eeba8ba 70 // Pin Assigenment for Arduino MP3 Shield
takashikojo 0:82078eeba8ba 71 // (VS1053 employed, issued by sparkfun.com)
takashikojo 0:82078eeba8ba 72 //
takashikojo 0:82078eeba8ba 73 // MP3 Sheild Side | mbed Side
takashikojo 0:82078eeba8ba 74 // ---------------------------------------
takashikojo 0:82078eeba8ba 75 // RX-------------------10 (optional)
takashikojo 0:82078eeba8ba 76 // TX-------------------09 (optional)
takashikojo 0:82078eeba8ba 77 // D2(BSYNC)------------11
takashikojo 0:82078eeba8ba 78 // D3(DREQ)-------------10
takashikojo 0:82078eeba8ba 79 //
takashikojo 0:82078eeba8ba 80 // D9(CS)---------------8
takashikojo 0:82078eeba8ba 81 //
takashikojo 0:82078eeba8ba 82 // D11(MOSI)------------5
takashikojo 0:82078eeba8ba 83 // D12(MISO)------------6
takashikojo 0:82078eeba8ba 84 // D13(SCK)-------------7
takashikojo 0:82078eeba8ba 85 //
takashikojo 0:82078eeba8ba 86 // GND------------------GND(1)
takashikojo 0:82078eeba8ba 87 // 5V-------------------VU(39)
takashikojo 0:82078eeba8ba 88 // RESET----------------9
takashikojo 0:82078eeba8ba 89 //
takashikojo 0:82078eeba8ba 90 // ----------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 91 const int VS1053B_BUFFER_SIZE = (8 * 1024 + 1);
takashikojo 0:82078eeba8ba 92 char VS1053_BUFFER[VS1053B_BUFFER_SIZE];
takashikojo 0:82078eeba8ba 93 char* VS1053B_BUFFER_POINTER = VS1053_BUFFER;
takashikojo 0:82078eeba8ba 94 VS1053 mp3( p5, p6, p7, p8, p9, p10, p11, VS1053_BUFFER, VS1053B_BUFFER_SIZE);
takashikojo 0:82078eeba8ba 95
takashikojo 0:82078eeba8ba 96 // Serial for Debug
takashikojo 0:82078eeba8ba 97 Serial pc(USBTX, USBRX);
takashikojo 0:82078eeba8ba 98
takashikojo 0:82078eeba8ba 99 Ticker timer;
takashikojo 0:82078eeba8ba 100 Ticker timer2;
takashikojo 0:82078eeba8ba 101
takashikojo 0:82078eeba8ba 102 DigitalIn _DREQ(p11);
takashikojo 0:82078eeba8ba 103 bool next = false;
takashikojo 0:82078eeba8ba 104
takashikojo 0:82078eeba8ba 105 void statisticsOutput();
takashikojo 0:82078eeba8ba 106
takashikojo 1:4d5a54104bbb 107 void SetVolume(void const *) {
takashikojo 0:82078eeba8ba 108 while (1) {
takashikojo 0:82078eeba8ba 109 if (pc.readable()) {
takashikojo 0:82078eeba8ba 110 unsigned char c = pc.getc();
takashikojo 0:82078eeba8ba 111 // scanf ("%x",&i);
takashikojo 0:82078eeba8ba 112 switch (c) {
takashikojo 0:82078eeba8ba 113 case '1':
takashikojo 0:82078eeba8ba 114 case '2':
takashikojo 0:82078eeba8ba 115 case '3':
takashikojo 0:82078eeba8ba 116 case '4':
takashikojo 0:82078eeba8ba 117 mp3.setPlaySpeed(c - 48);
takashikojo 0:82078eeba8ba 118 break;
takashikojo 0:82078eeba8ba 119 case '+':
takashikojo 0:82078eeba8ba 120 mp3.setVolume(mp3.getVolume() + 0.5);
takashikojo 0:82078eeba8ba 121 break;
takashikojo 0:82078eeba8ba 122 case '-':
takashikojo 0:82078eeba8ba 123 mp3.setVolume(mp3.getVolume() - 0.5);
takashikojo 0:82078eeba8ba 124 break;
takashikojo 0:82078eeba8ba 125 case 'k':
takashikojo 0:82078eeba8ba 126 mp3.setVolume(mp3.getBalance() + 0.5);
takashikojo 0:82078eeba8ba 127 break;
takashikojo 0:82078eeba8ba 128 case 'l':
takashikojo 0:82078eeba8ba 129 mp3.setVolume(mp3.getBalance() - 0.5);
takashikojo 0:82078eeba8ba 130 break;
takashikojo 0:82078eeba8ba 131 case 'a':
takashikojo 0:82078eeba8ba 132 mp3.setTrebleFrequency(mp3.getTrebleFrequency() + 1000);
takashikojo 0:82078eeba8ba 133 break;
takashikojo 0:82078eeba8ba 134 case 'y':
takashikojo 0:82078eeba8ba 135 mp3.setTrebleFrequency(mp3.getTrebleFrequency() - 1000);
takashikojo 0:82078eeba8ba 136 break;
takashikojo 0:82078eeba8ba 137 case 's':
takashikojo 0:82078eeba8ba 138 mp3.setTrebleAmplitude(mp3.getTrebleAmplitude() - 1);
takashikojo 0:82078eeba8ba 139 break;
takashikojo 0:82078eeba8ba 140 case 'x':
takashikojo 0:82078eeba8ba 141 mp3.setTrebleAmplitude(mp3.getTrebleAmplitude() + 1);
takashikojo 0:82078eeba8ba 142 break;
takashikojo 0:82078eeba8ba 143 case 'd':
takashikojo 0:82078eeba8ba 144 mp3.setBassFrequency(mp3.getBassFrequency() + 10);
takashikojo 0:82078eeba8ba 145 break;
takashikojo 0:82078eeba8ba 146 case 'c':
takashikojo 0:82078eeba8ba 147 mp3.setBassFrequency(mp3.getBassFrequency() - 10);
takashikojo 0:82078eeba8ba 148 break;
takashikojo 0:82078eeba8ba 149 case 'f':
takashikojo 0:82078eeba8ba 150 mp3.setBassAmplitude(mp3.getBassAmplitude() - 1);
takashikojo 0:82078eeba8ba 151 break;
takashikojo 0:82078eeba8ba 152 case 'v':
takashikojo 0:82078eeba8ba 153 mp3.setBassAmplitude(mp3.getBassAmplitude() + 1);
takashikojo 0:82078eeba8ba 154 break;
takashikojo 0:82078eeba8ba 155 case 'z':
takashikojo 0:82078eeba8ba 156 timer.attach(&statisticsOutput, 1);
takashikojo 0:82078eeba8ba 157 break;
takashikojo 0:82078eeba8ba 158 case 'u':
takashikojo 0:82078eeba8ba 159 timer.detach();
takashikojo 0:82078eeba8ba 160 break;
takashikojo 0:82078eeba8ba 161 case 'i':
takashikojo 0:82078eeba8ba 162 statisticsOutput();
takashikojo 0:82078eeba8ba 163 break;
takashikojo 0:82078eeba8ba 164 case 'h':
takashikojo 0:82078eeba8ba 165 mp3.play();
takashikojo 0:82078eeba8ba 166 break;
takashikojo 0:82078eeba8ba 167 case 'j':
takashikojo 0:82078eeba8ba 168 mp3.pause();
takashikojo 0:82078eeba8ba 169 break;
takashikojo 0:82078eeba8ba 170 case 'n':
takashikojo 0:82078eeba8ba 171 next = true;
takashikojo 0:82078eeba8ba 172 break;
takashikojo 0:82078eeba8ba 173 default:
takashikojo 0:82078eeba8ba 174 break;
takashikojo 0:82078eeba8ba 175 }
takashikojo 0:82078eeba8ba 176 }
takashikojo 0:82078eeba8ba 177 Thread::wait(100) ;
takashikojo 0:82078eeba8ba 178 }
takashikojo 0:82078eeba8ba 179 }
takashikojo 0:82078eeba8ba 180
takashikojo 0:82078eeba8ba 181 void statisticsOutput() {
takashikojo 0:82078eeba8ba 182 printf("Statistics\r\n");
takashikojo 0:82078eeba8ba 183 printf("Buffer - Size: %i, Free: %i, Loaded: %i\r\n", mp3.bufferLength(), mp3.bufferFree(), mp3.bufferCount());
takashikojo 0:82078eeba8ba 184 printf("DREQ: %#x\r\n", _DREQ.read());
takashikojo 0:82078eeba8ba 185 }
takashikojo 0:82078eeba8ba 186
takashikojo 0:82078eeba8ba 187 DigitalOut led2(LED2); // Ticker for mp3
takashikojo 0:82078eeba8ba 188
takashikojo 1:4d5a54104bbb 189 void playFile(char *fname) {
takashikojo 1:4d5a54104bbb 190 FILE *song;
takashikojo 1:4d5a54104bbb 191 static char array[2048];
takashikojo 1:4d5a54104bbb 192
takashikojo 1:4d5a54104bbb 193 song = fopen(fname, "rb");
takashikojo 1:4d5a54104bbb 194 if (!song) {
takashikojo 1:4d5a54104bbb 195 printf("Couldn't open %s\r\n", fname);
takashikojo 1:4d5a54104bbb 196 return ;
takashikojo 1:4d5a54104bbb 197 }
takashikojo 1:4d5a54104bbb 198
takashikojo 1:4d5a54104bbb 199 int count = 0;
takashikojo 1:4d5a54104bbb 200 bool test = true;
takashikojo 1:4d5a54104bbb 201
takashikojo 1:4d5a54104bbb 202 while (!feof(song) && !next) {
takashikojo 1:4d5a54104bbb 203 int n=fread(&array, 1, sizeof(array), song);
takashikojo 1:4d5a54104bbb 204 while (mp3.bufferFree() < n) {
takashikojo 1:4d5a54104bbb 205 led2 = 1 ;
takashikojo 1:4d5a54104bbb 206 Thread::wait(100) ;
takashikojo 1:4d5a54104bbb 207 led2 = 0 ;
takashikojo 1:4d5a54104bbb 208 }
takashikojo 1:4d5a54104bbb 209 mp3.bufferPutStream(array,n);
takashikojo 1:4d5a54104bbb 210 if (count > 2 && test) {
takashikojo 1:4d5a54104bbb 211 test = false;
takashikojo 1:4d5a54104bbb 212 mp3.play();
takashikojo 1:4d5a54104bbb 213 }
takashikojo 1:4d5a54104bbb 214 count++;
takashikojo 1:4d5a54104bbb 215 }
takashikojo 1:4d5a54104bbb 216 if (next) {
takashikojo 1:4d5a54104bbb 217 mp3.stop();
takashikojo 1:4d5a54104bbb 218 next = false;
takashikojo 1:4d5a54104bbb 219 } else {
takashikojo 1:4d5a54104bbb 220 mp3.terminateStream();
takashikojo 1:4d5a54104bbb 221 }
takashikojo 1:4d5a54104bbb 222 fclose(song); //close the file
takashikojo 1:4d5a54104bbb 223 }
takashikojo 1:4d5a54104bbb 224
takashikojo 1:4d5a54104bbb 225
takashikojo 0:82078eeba8ba 226 void main_mp3 (void const *argument) {
takashikojo 0:82078eeba8ba 227
takashikojo 0:82078eeba8ba 228 // ------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 229 // MP3 Initialising
takashikojo 0:82078eeba8ba 230 // ------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 231 printf("Initialize mp3 Codec...\r\n");
takashikojo 0:82078eeba8ba 232 mp3.initialize();
takashikojo 0:82078eeba8ba 233 printf("mp3 Codec is initialized\r\n");
takashikojo 1:4d5a54104bbb 234
takashikojo 0:82078eeba8ba 235 mp3.setVolume(VOLUME);
takashikojo 1:4d5a54104bbb 236 Thread t(SetVolume , NULL, osPriorityNormal, (DEFAULT_STACK_SIZE));
takashikojo 0:82078eeba8ba 237
takashikojo 0:82078eeba8ba 238 // ------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 239 // Play mp3 file
takashikojo 0:82078eeba8ba 240 // ------------------------------------------------------------------------
takashikojo 0:82078eeba8ba 241
takashikojo 0:82078eeba8ba 242 //while (1)
takashikojo 0:82078eeba8ba 243 {
takashikojo 0:82078eeba8ba 244 DIR *d;
takashikojo 0:82078eeba8ba 245 struct dirent *p;
takashikojo 0:82078eeba8ba 246 d = opendir(DIR_NAME);
takashikojo 0:82078eeba8ba 247 if (d != NULL) {
takashikojo 0:82078eeba8ba 248 while ((p = readdir(d)) != NULL) {
takashikojo 0:82078eeba8ba 249 static char str[160] = DIR_NAME;
takashikojo 0:82078eeba8ba 250
takashikojo 0:82078eeba8ba 251 //check extension
takashikojo 0:82078eeba8ba 252 char * extension =strrchr( p->d_name,'.') + 1;
takashikojo 0:82078eeba8ba 253 bool isAudioFile = false;
takashikojo 0:82078eeba8ba 254 if (strcmp(extension, "mp3") == 0)
takashikojo 0:82078eeba8ba 255 isAudioFile = true;
takashikojo 0:82078eeba8ba 256 else if (strcmp(extension, "MP3") == 0)
takashikojo 0:82078eeba8ba 257 isAudioFile = true;
takashikojo 0:82078eeba8ba 258 else if (strcmp(extension, "mp4") == 0)
takashikojo 0:82078eeba8ba 259 isAudioFile = true;
takashikojo 0:82078eeba8ba 260 else if (strcmp(extension, "MP4") == 0)
takashikojo 0:82078eeba8ba 261 isAudioFile = true;
takashikojo 0:82078eeba8ba 262 if (isAudioFile ) {
takashikojo 0:82078eeba8ba 263 printf("Now Playing: %s\r\n", p->d_name);
takashikojo 0:82078eeba8ba 264
takashikojo 0:82078eeba8ba 265 sprintf(str, "%s/%s", DIR_NAME, p->d_name);
takashikojo 0:82078eeba8ba 266 printf("Path %s\r\n", str);
takashikojo 0:82078eeba8ba 267
takashikojo 1:4d5a54104bbb 268 playFile(str) ; /*** Play the mp3 file ***/
takashikojo 0:82078eeba8ba 269
takashikojo 0:82078eeba8ba 270 printf("End of song.\r\n");
takashikojo 0:82078eeba8ba 271 wait(1.0);
takashikojo 0:82078eeba8ba 272 } else {
takashikojo 0:82078eeba8ba 273 printf("File ignored. Extension: %s\r\n", extension);
takashikojo 0:82078eeba8ba 274 }
takashikojo 0:82078eeba8ba 275
takashikojo 0:82078eeba8ba 276 }
takashikojo 0:82078eeba8ba 277 closedir(d);
takashikojo 0:82078eeba8ba 278 } else {
takashikojo 0:82078eeba8ba 279 error("Could not open directory!");
takashikojo 0:82078eeba8ba 280 // break;
takashikojo 0:82078eeba8ba 281 }
takashikojo 0:82078eeba8ba 282
takashikojo 0:82078eeba8ba 283 }
takashikojo 0:82078eeba8ba 284 printf("Done.\r\n");
takashikojo 0:82078eeba8ba 285
takashikojo 0:82078eeba8ba 286 }