Tempo tapper struct. More...

#include <tempo_tapper.h>

Public Attributes
tt_time_t	prd_sum
	Holds the sum of all measured/"tapped" periods.

tt_time_t	lst_t
	Hold the clock time of the last tap.

int	taps
	Number of taps. The inital val is -1, meaning the 1st tap does not count.

Detailed Description

Tempo tapper struct.

The following struct represents a virtual tempo tapper, and stores the necessary information to set, alter and receive a tempo value.

To create and interface with a tempo tapper struct, use the following functions:

tt_new() - Creates a new tempo tapper struct
tt_period_us() - Returns the period of a tempo in microseconds
tt_tap() - "Taps" the tempo tapper
tt_reset() - Resets the tempo tapper
tt_bpm() - Returns the tempo in BPM

To store time values, the platform varying tt_time_t typedef is used, as each platform offers its own preferred data type or struct to store time values (Ex. timeval on posix). This means that time arithmetic is implemented differently on every platform (see current_time(), add_time(), sub_time(), time_to_us(), reset_time()). For the library user, this is irrelevant as platform specific code is handled by the library internally. The only noticable external difference may be a variation in speed and precision.

Definition at line 87 of file tempo_tapper.h.

The documentation for this struct was generated from the following file:

include/tempo_tapper.h

Public Attributes

Detailed Description