Namaskron Chimpalee / VS1053_mp3

mp3

player.cpp@2:a59255e80c0d, 2017-12-09 (annotated)

Committer:
csggreen
Date:
Sat Dec 09 15:07:27 2017 +0000
Revision:
2:a59255e80c0d
Parent:
1:17913cff05a2
Child:
3:94b538ace77a
green_mp3;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
cha45689 0:58524d569dfd 1 #include "player.h"
cha45689 0:58524d569dfd 2 #include"SDFileSystem.h"
cha45689 0:58524d569dfd 3
cha45689 0:58524d569dfd 4 SDFileSystem sd(D11, D12, D13, D9, "sd"); // the pinout on the mbed Cool
cha45689 0:58524d569dfd 5 vs10xx vs1053(D11, D12, D13, D6, D7, D2, D8);//mosi,miso,sclk,xcs,xdcs,dreq,xreset
cha45689 0:58524d569dfd 6 Serial pc(USBTX, USBRX);
cha45689 0:58524d569dfd 7 playerStatetype playerState;
cha45689 0:58524d569dfd 8 ctrlStatetype ctrlState;
csggreen 1:17913cff05a2 9 static unsigned char fileBuf[32768];
cha45689 0:58524d569dfd 10 unsigned char *bufptr;
csggreen 2:a59255e80c0d 11 char green;
cha45689 0:58524d569dfd 12
csggreen 2:a59255e80c0d 13 char list[20][50]; //song list
csggreen 2:a59255e80c0d 14
csggreen 1:17913cff05a2 15 char data ;
csggreen 1:17913cff05a2 16 DigitalIn sw_in(USER_BUTTON);
cha45689 0:58524d569dfd 17
cha45689 0:58524d569dfd 18 void Player::begin(void)
cha45689 0:58524d569dfd 19 {
cha45689 0:58524d569dfd 20 DirHandle *dir;
cha45689 0:58524d569dfd 21 struct dirent *ptr;
cha45689 0:58524d569dfd 22 FileHandle *fp;
cha45689 0:58524d569dfd 23
cha45689 0:58524d569dfd 24 vs1053.reset();
cha45689 0:58524d569dfd 25 dir = opendir("/sd");
cha45689 0:58524d569dfd 26 printf("\r\n**********playing list**********\r\n");
cha45689 0:58524d569dfd 27 unsigned char i = 0,j=0;
cha45689 0:58524d569dfd 28 while(((ptr = dir->readdir()) != NULL)&&(i <20))
cha45689 0:58524d569dfd 29 {
csggreen 1:17913cff05a2 30 if(strstr(ptr->d_name,".mp3")||strstr(ptr->d_name,".MP3"))
cha45689 0:58524d569dfd 31 {
cha45689 0:58524d569dfd 32 fp =sd.open(ptr->d_name, O_RDONLY);
cha45689 0:58524d569dfd 33 if(fp != NULL)
cha45689 0:58524d569dfd 34 {
cha45689 0:58524d569dfd 35 char *byte = ptr->d_name;
csggreen 1:17913cff05a2 36 j=0;
csggreen 1:17913cff05a2 37 while(*byte){
csggreen 1:17913cff05a2 38 list[i][j++] = *byte++;
csggreen 2:a59255e80c0d 39 green=i;
cha45689 0:58524d569dfd 40 }
cha45689 0:58524d569dfd 41 pc.printf("%2d . %s\r\n", i,list[i++]);
csggreen 1:17913cff05a2 42 //fp->close();
cha45689 0:58524d569dfd 43 }
cha45689 0:58524d569dfd 44 }
cha45689 0:58524d569dfd 45 }
cha45689 0:58524d569dfd 46 dir->closedir();
cha45689 0:58524d569dfd 47 }
cha45689 0:58524d569dfd 48
csggreen 1:17913cff05a2 49 void Player::stop(void){
csggreen 1:17913cff05a2 50 playerState =PS_STOP;
csggreen 1:17913cff05a2 51 }
csggreen 2:a59255e80c0d 52
csggreen 1:17913cff05a2 53
csggreen 2:a59255e80c0d 54
csggreen 1:17913cff05a2 55
cha45689 0:58524d569dfd 56 /* This function plays back an audio file. */
cha45689 0:58524d569dfd 57 void Player::playFile(char *file) {
cha45689 0:58524d569dfd 58 int bytes; // How many bytes in buffer left
cha45689 0:58524d569dfd 59 char n;
cha45689 0:58524d569dfd 60
cha45689 0:58524d569dfd 61 playerState = PS_PLAY;
cha45689 0:58524d569dfd 62
cha45689 0:58524d569dfd 63 vs1053.setFreq(24000000); //hight speed
csggreen 1:17913cff05a2 64
csggreen 2:a59255e80c0d 65 FileHandle *fp =sd.open(file, O_RDONLY);
cha45689 0:58524d569dfd 66
cha45689 0:58524d569dfd 67 if(fp == NULL) {
cha45689 0:58524d569dfd 68 printf("Could not open %s\r\n",file);
cha45689 0:58524d569dfd 69
cha45689 0:58524d569dfd 70 }
cha45689 0:58524d569dfd 71 else
cha45689 0:58524d569dfd 72 {
cha45689 0:58524d569dfd 73 printf("Playing %s ...\r\n",file);
cha45689 0:58524d569dfd 74
cha45689 0:58524d569dfd 75 /* Main playback loop */
csggreen 1:17913cff05a2 76 while((bytes = fp->read(fileBuf,32768)) > 0) {
csggreen 1:17913cff05a2 77 while((bytes = fp->read(fileBuf,32000)) > 0) {
cha45689 0:58524d569dfd 78 {
cha45689 0:58524d569dfd 79 bufptr = fileBuf;
cha45689 0:58524d569dfd 80 // actual audio data gets sent to VS10xx.
cha45689 0:58524d569dfd 81 while(bytes > 0)
cha45689 0:58524d569dfd 82 {
cha45689 0:58524d569dfd 83 n = (bytes < 32)?bytes:32;
cha45689 0:58524d569dfd 84 vs1053.writeData(bufptr,n);
cha45689 0:58524d569dfd 85 bytes -= n;
cha45689 0:58524d569dfd 86 bufptr += n;
csggreen 1:17913cff05a2 87
cha45689 0:58524d569dfd 88 }
csggreen 1:17913cff05a2 89 uint8_t vol = 0x00;//set vlume
csggreen 1:17913cff05a2 90 vs1053.setVolume(vol); //set vlume
csggreen 2:a59255e80c0d 91
cha45689 0:58524d569dfd 92 if(playerState != PS_PLAY) //stop
cha45689 0:58524d569dfd 93 {
cha45689 0:58524d569dfd 94 fp->close();
cha45689 0:58524d569dfd 95 vs1053.softReset();
cha45689 0:58524d569dfd 96 }
csggreen 1:17913cff05a2 97
csggreen 1:17913cff05a2 98 }
csggreen 1:17913cff05a2 99 }
cha45689 0:58524d569dfd 100 }
cha45689 0:58524d569dfd 101 }
cha45689 0:58524d569dfd 102
cha45689 0:58524d569dfd 103 }
cha45689 0:58524d569dfd 104