musiclight2/config.h

/*
 * vim: sw=2 ts=2 expandtab
 *
 * "THE PIZZA-WARE LICENSE" (derived from "THE BEER-WARE LICENCE"):
 * Thomas Kolb <cfr34k@tkolb.de> wrote this file. As long as you retain this
 * notice you can do whatever you want with this stuff. If we meet some day,
 * and you think this stuff is worth it, you can buy me a pizza in return.
 * - Thomas Kolb
 */

#ifndef CONFIG_H
#define CONFIG_H

#include <stdint.h>

// configuration variables for musiclight2

// networking
#define HOST "192.168.42.1"
#define PORT 2703

// FFT transformation parameters
#define FFT_EXPONENT 8 // ATTENTION: when you change this, run gen_lut.py with this value as argument
#define BLOCK_LEN (1 << FFT_EXPONENT) // 2^FFT_EXPONENT
#define SAMPLE_RATE 44100
#define DATALEN (BLOCK_LEN / 2)

// Number of parts in the sample buffer
#define BUFFER_PARTS 2

// Update rate for the led strip (in seconds)
// Must be a little faster than the hardware update rate to ensure there’s
// always a packet in the queue
//#define LED_INTERVAL 0.01
#define LED_INTERVAL (1.0/61.0)

// frequency ranges for the base colors
#define RED_MIN_FREQ 0
#define RED_MAX_FREQ 400
#define GREEN_MIN_FREQ 400
#define GREEN_MAX_FREQ 4000
#define BLUE_MIN_FREQ 4000
#define BLUE_MAX_FREQ SAMPLE_RATE/2

#define COLOR_MAX_REDUCTION_FACTOR 0.9998

// sample data types
typedef int16_t sample;
typedef int64_t sample_sum;

typedef double value_type;

#endif // CONFIG_H