aubio 0.4.2~alpha

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utils/test-parameter.c
#include <aubio.h>
#include "utils_tests.h"
void get_some_steps ( aubio_parameter_t * param );
void get_some_steps ( aubio_parameter_t * param )
{
uint_t i = 0;
uint_t steps = aubio_parameter_get_steps ( param );
PRINT_MSG("next steps (%d) values:", steps );
for (i = 0; i < steps; i ++ ) {
PRINT_MSG(" %f", aubio_parameter_get_next_value (param) );
}
PRINT_MSG("\n");
PRINT_MSG("next 3 values:");
for (i = 0; i < 3; i ++ ) {
PRINT_MSG(" %f", aubio_parameter_get_next_value (param) );
}
PRINT_MSG("\n");
}
int main (void)
{
smpl_t max_value = 100.;
smpl_t min_value = 0.;
uint_t steps = 10;
aubio_parameter_t * param = new_aubio_parameter ( min_value, max_value, steps );
PRINT_MSG("initial value: %f, steps: %d\n", aubio_parameter_get_current_value
(param) , aubio_parameter_get_steps (param) );
PRINT_MSG("target: max_value / 2\n");
aubio_parameter_set_target_value ( param, max_value );
get_some_steps ( param );
PRINT_MSG("target: max_value / 2\n");
aubio_parameter_set_target_value ( param, max_value / 2 );
get_some_steps ( param );
PRINT_MSG("target: max_value * 2\n");
aubio_parameter_set_target_value ( param, max_value * 2);
get_some_steps ( param );
PRINT_MSG("steps: 1, target: -max\n");
aubio_parameter_set_steps ( param, 1);
aubio_parameter_set_target_value ( param, - max_value);
get_some_steps ( param );
PRINT_MSG("steps: 30, current value: max, target: min\n");
aubio_parameter_set_current_value ( param, max_value );
aubio_parameter_set_target_value ( param, min_value );
aubio_parameter_set_steps ( param, 7 );
get_some_steps ( param );
PRINT_MSG("steps: 30, max value: max * 2, min value: -max, current value: -max, target: max\n");
aubio_parameter_set_min_value ( param, - max_value );
aubio_parameter_set_max_value ( param, 2. * max_value );
aubio_parameter_set_current_value ( param, - max_value );
aubio_parameter_set_target_value ( param, max_value );
aubio_parameter_set_steps ( param, 10 );
get_some_steps ( param );
del_aubio_parameter (param);
return 0;
}