alGetFillable(3dm)alGetFillable(3dm)NAMEalGetFillable - report the number of unfilled sample frames in an audio
port
SYNOPSIS
#include <dmedia/audio.h>
int alGetFillable(ALport port)
PARAMETER
port expects the audio port you want to query. This structure is the
returned value of the alOpenPort(3dm) call.
DESCRIPTIONalGetFillable returns the number of sample frames in an audio port that
have not yet been filled. How you interpret this number depends on
whether port is an input port or an output port.
For an input port, the return value is a count of spaces that the device
can fill up before the port overflows, causing a loss of samples.
For an output port, the return value is the greatest number of sample
frames that can be written to the port without blocking (i.e. waiting for
more samples to be played).
Because the port may continue to empty or fill, the number returned by
alGetFillable is an instantaneous measurement of the number of fillable
locations. For input ports, this number will decrease over time as new
samples arrive. For output, ports this number will increase as samples
are played.
In order to insure the best possible performance, alGetFillable performs
no verification of port. You should make certain that port is a valid
ALport structure before passing it as a parameter to alGetFillable.
DIAGNOSTICS
Upon successful completion, alGetFillable returns a non-negative number.
SEE ALSOalOpenPort(3dm), alGetFilled(3dm)
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