Get the number of samples queued in the audio device.
This is usually less than the segment size but can be bigger when the implementation uses another internal buffer between the audio device.
For playback ringbuffers this is the amount of samples transferred from the ringbuffer to the device but still not played.
For capture ringbuffers this is the amount of samples in the device that are not yet transferred to the ringbuffer.
| this |
the RingBuffer to query |