mp3player.h

Go to the documentation of this file.

 
#ifndef __mainmp3_H__
#define __mainmp3_H__
 
#include <iostream>
#include <iomanip>
#include "web_radio_config.h"
#include <mp3dec.h>
#include "mp3common.h"
 
typedef enum {
    BUFFER_OFFSET_NONE = 0,
    BUFFER_OFFSET_HALF,
    BUFFER_OFFSET_FULL,
} BUFFER_StateTypeDef;
 
typedef struct {
    uint8_t buff[AUDIO_BUFFER_SIZE];
    BUFFER_StateTypeDef state;
    //    uint32_t fptr;
} AUDIO_OUT_BufferTypeDef;
 
ALIGN_32BYTES(static AUDIO_OUT_BufferTypeDef BufferCtl __attribute__((
    section(".tcpBuffer")))); 
class Mp3Player
{
  public:
    Mp3Player();
 
    void initPlay();
 
    void resume();
 
    void bufferProcess();
 
    void audioProcess();
 
    void extractTcpBuffer(uint8_t *data, uint32_t btr);
 
    void deleteTcpBuffer(void);
 
    void insertTcpBuffer(uint8_t *data, uint32_t btw);
 
    void drawFTT(int32_t inx, int32_t *x, int32_t *ly, int32_t ll, int32_t *ry,
                 int32_t rr, int32_t height, int32_t FFTGraph);
    void drawVuMeter(float *angle_L, float *angle_R);
 
    void getEtherAndBuffer(void);
 
    void drawSpectrum(void);
 
  private:
    uint8_t init(uint32_t AudioFreq)
    {
        int error;
 
        BSP_AUDIO_Init_t *AudioInit;
 
        if (AudioFreq == 0)
            AudioFreq = 48000; // if no frequency supplied by station
 
        std::cout << "InitPlayer with AudioFreq = " << (unsigned int)AudioFreq
                  << "\n\r";
        /* Initialize the Audio codec and all related peripherals (I2S, I2C,
         * IOExpander, IOs...) */
 
        AudioInit->BitsPerSample = 16;
        AudioInit->ChannelsNbr = 2;
        AudioInit->Device = AUDIO_OUT_DEVICE_HEADPHONE;
        AudioInit->SampleRate = AudioFreq;
        AudioInit->Volume = 50;
 
        error = BSP_AUDIO_OUT_Init(0, AudioInit);
 
        if (error) {
            std::cout << "Cannot initialize Audio Subsystem\n\r";
            return 1;
        } else {
            std::cout << "Audio Subsystem successfully initialised \n\r";
            return 0;
        }
    }
};
 
#endif