# audio/stream-queued Bytes of PCM still queued in a push stream — the backpressure gate before pushing more. ## Syntax

[audio/stream-queued id]

## Parameters - `id` — a stream id from `audio/stream-open` ## Examples

set backlog [audio/stream-queued $s]
if ($backlog < 131072) {   # ~128 KB cap, as the video app uses
    [audio/stream-push $s $chunk]
}

## Returns number — queued bytes. `%Err{:message}` when the id is unknown or no SDL host is compiled in. The count drains at playback rate as the device consumes the stream. ## See Also `audio/stream-push`, `audio/stream-clear`, `audio/stream-open`