Struct ControlMonitor 

pub struct ControlMonitor<'d> { /* private fields */ }

Control status change monitor.

Await Self::changed, then read the updated settings with Self::muted, Self::volume and Self::sample_rate_hz.

Implementations

impl<'d> ControlMonitor<'d>

pub fn muted(&self) -> bool

Whether the host has muted the stream: the master channel, or every audio channel. A stream that honours it plays or sends silence.

pub fn volume(&self, channel: Channel) -> Option<Volume>

Returns the channel volume with the master volume applied.

Returns Volume::Muted if the master or channel is muted or set to silence (-∞ dB). Returns None if the channel is absent or neither it nor the master has controls.

pub fn sample_rate_hz(&self) -> u32

Get the streaming endpoint’s sample rate in Hz. Before the host sets one — and again after a bus reset — it is the first advertised rate.

pub async fn changed(&self)

Wait for the control settings to change. Single consumer: await this from at most one task.