man YCalculateCycle (Fonctions bibliothèques) - Y server cycle interval calculation
NAME
YCalculateCycle - Y server cycle interval calculation
SYNTAX
#include <Y2/Y.h>
#include <Y2/Ylib.h>
long YCalculateCycle(
YConnection *connection,
int sample_rate,
int channels,
int sample_size,
int fragment_size
)
ARGUMENTS
- connection
- Specifies the connection to the Y server, obtained by a call to YOpenConnection.
- sample_rate
- Specifies the sample rate in Hz.
- channels
- Specifies the number of channels.
- sample_size
- Specifies the sample size in bits.
- fragment_size
- Specifies the fragmented buffer size in bytes, must be a 2^n value.
DESCRIPTION
The YCalculateCycle function calculates the theoretical cycle value in microseconds with respect to the given inputs. The input connection can be NULL, however if it is NULL then a less accurate and more generalized answer will be returned.
RETURN VALUE
The YCalculateCycle returns the theoretical cycle value in microseconds. This value is not gauranteed to always work, cycle values defined on the Y server's preset Audio modes should be considered more accurate.
EXAMPLE
#include <stdio.h>
#include <Y2/Y.h>
#include <Y2/Ylib.h>
int main(int argc, char *argv[])
{
YConnection *con = YOpenConnection(
"/usr/sbin/starty",
"127.0.0.1:9433"
);
if(con == NULL)
return(1);
printf("Cycle %ld microseconds\n",
YCalculateCycle(
con, 11025, 2, 8, 1024
)
);
YCloseConnection(con, False);
return(0);
}