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Audio library to the new format

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This commit is contained in:
Fede85
2013-06-27 19:15:53 +02:00
parent c13779daae
commit b28104b795
11 changed files with 18 additions and 8 deletions
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57
libraries/Audio/src/Audio.h Normal file
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/*
* Copyright (c) 2012 by Cristian Maglie <c.maglie@bug.st>
* Audio library for Arduino Due.
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of either the GNU General Public License version 2
* or the GNU Lesser General Public License version 2.1, both as
* published by the Free Software Foundation.
*/
#ifndef AUDIO_H
#define AUDIO_H
#include "Arduino.h"
#include "Print.h"
#include "DAC.h"
class AudioClass : public Print {
public:
AudioClass(DACClass &_dac) : dac(&_dac) { };
void prepare(int16_t *buffer, int S, int volume);
void begin(uint32_t sampleRate, uint32_t msPreBuffer);
void end();
virtual size_t write(uint8_t c) { /* not implemented */ };
virtual size_t write(const uint8_t *data, size_t size) { return write(reinterpret_cast<const uint32_t*>(data), size/4) * 4; };
virtual size_t write(const uint16_t *data, size_t size) { return write(reinterpret_cast<const uint32_t*>(data), size/2) * 2; };
virtual size_t write(const int16_t *data, size_t size) { return write(reinterpret_cast<const uint32_t*>(data), size/2) * 2; };
virtual size_t write(const uint32_t *data, size_t size);
void debug() {
// Serial1.print(running-buffer, DEC);
// Serial1.print(" ");
// Serial1.print(current-buffer, DEC);
// Serial1.print(" ");
// Serial1.print(next-buffer, DEC);
// Serial1.print(" ");
// Serial1.println(last-buffer, DEC);
}
private:
void enqueue();
static void onTransmitEnd(void *me);
uint32_t bufferSize;
uint32_t *buffer;
uint32_t *half;
uint32_t *last;
uint32_t *volatile running;
uint32_t *volatile next;
uint32_t *cook(const uint32_t *buffer, size_t size);
DACClass *dac;
};
extern AudioClass Audio;
#endif