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#ifndef UTILS_H_
#define UTILS_H_
#include <math.h>
#include <stdint.h>
#include <stddef.h>
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
#define NUMOF(l) (sizeof(l) / sizeof(*l))
#define linear_to_dB(x) (log10(x) * 20)
/*! Calculate the little string containing a bargraph
* 'VU-meter' from the peak value measured
*/
const char* level(int channel, int peak);
size_t strlen_utf8(const char *s);
#endif
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