Struct web_audio_api::context::BaseAudioContext

pub struct BaseAudioContext { /* fields omitted */ }

The BaseAudioContext interface represents an audio-processing graph built from audio modules linked together, each represented by an AudioNode. An audio context controls both the creation of the nodes it contains and the execution of the audio processing, or decoding.

Implementations

impl BaseAudioContext

pub fn sample_rate(&self) -> SampleRate

The sample rate (in sample-frames per second) at which the AudioContext handles audio.

pub fn current_time(&self) -> f64

This is the time in seconds of the sample frame immediately following the last sample-frame in the block of audio most recently processed by the context’s rendering graph.

pub fn channels(&self) -> u32

Number of channels for the audio destination

pub fn register<'a, T: AudioNode, F: FnOnce(AudioContextRegistration<'a>) -> (T, Box<dyn AudioProcessor>)>(
    &'a self,
    f: F
) -> T

Construct a new pair of node::AudioNode and AudioProcessor

The AudioNode lives in the user-facing control thread. The Processor is sent to the render thread.

Trait Implementations

impl AsBaseAudioContext for BaseAudioContext

fn base(&self) -> &BaseAudioContext

fn create_oscillator(&self) -> OscillatorNode<'_>

Creates an OscillatorNode, a source representing a periodic waveform. It basically generates a tone.

fn create_gain(&self) -> GainNode<'_>

Creates an GainNode, to control audio volume

fn create_constant_source(&self) -> ConstantSourceNode<'_>

Creates an ConstantSourceNode, a source representing a constant value

fn create_delay(&self) -> DelayNode<'_>

Creates a DelayNode, delaying the audio signal

fn create_channel_splitter(
    &self,
    number_of_outputs: u32
) -> ChannelSplitterNode<'_>

Creates a ChannelSplitterNode

fn create_channel_merger(&self, number_of_inputs: u32) -> ChannelMergerNode<'_>

Creates a ChannelMergerNode

fn create_media_stream_source<M: MediaStream>(
    &self,
    media: M
) -> MediaStreamAudioSourceNode<'_>

Creates a MediaStreamAudioSourceNode from a MediaElement

fn create_media_element_source<M: MediaStream>(
    &self,
    media: MediaElement<M>
) -> MediaElementAudioSourceNode<'_>

Creates a MediaElementAudioSourceNode from a MediaElement

fn create_buffer_source(&self) -> AudioBufferSourceNode<'_>

Creates an AudioBufferSourceNode

fn create_panner(&self) -> PannerNode<'_>

Creates a PannerNode

fn create_audio_param(
    &self,
    opts: AudioParamOptions,
    dest: &AudioNodeId
) -> (AudioParam<'_>, AudioParamId)

Create an AudioParam.

fn destination(&self) -> DestinationNode<'_>

Returns an AudioDestinationNode representing the final destination of all audio in the context. It can be thought of as the audio-rendering device.

fn listener(&self) -> AudioListener<'_>

Returns the AudioListener which is used for 3D spatialization

fn sample_rate(&self) -> SampleRate

The sample rate (in sample-frames per second) at which the AudioContext handles audio.

fn current_time(&self) -> f64

This is the time in seconds of the sample frame immediately following the last sample-frame in the block of audio most recently processed by the context’s rendering graph.