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LG-Audio.cpp
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LG-Audio.cpp
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#include "LG-Audio.h"
SdFat sd;
TMRpcm audio;
char fileName[50] = "";
void initSoundBankCount() {
getSoundBankCount();
}
unsigned int getSoundBankCount() {
static unsigned int soundBankCount = 0;
// Only once, if uninitialised, parse the index file
if (soundBankCount == 0) {
unsigned int lineCount = 0;
// The SD-card cannot simply be used by audio and main simultaneously
audio.stopPlayback();
SdFile index(INDEX_FILE_NAME, O_READ);
while(index.fgets(fileName, sizeof fileName) > 0) {
lineCount++;
}
soundBankCount = (lineCount + NUMBER_OF_SOUNDS_PER_BANK - 1 ) / NUMBER_OF_SOUNDS_PER_BANK;
}
return soundBankCount;
}
const char *soundFileFromKey(unsigned int bank, unsigned int key) {
const unsigned int lineNumber = bank * NUMBER_OF_SOUNDS_PER_BANK + key;
// The SD-card cannot simply be used by audio and main simultaneously
audio.stopPlayback();
SdFile index(INDEX_FILE_NAME, O_READ);
for (uint8_t line=0; line < lineNumber; line++) {
index.fgets(fileName, sizeof fileName);
}
fileName[strcspn(fileName, "\r\n")] = '\0';
return fileName;
}
const char *soundFileFromIrCode(uint16_t irCode) {
switch (irCode) {
case 0x0140 : return soundFileFromKey(0, 1);
case 0x0158 : return soundFileFromKey(0, 2);
case 0x01A0 : return soundFileFromKey(0, 3);
case 0x0160 : return soundFileFromKey(0, 4);
case 0x0120 : return soundFileFromKey(0, 5);
case 0x0118 : return soundFileFromKey(0, 6);
case 0x01D2 : return soundFileFromKey(0, 7);
case 0x0152 : return soundFileFromKey(0, 8);
default : return soundFileFromKey(0, 16);
}
}