Module audio 

Audio service, widgets and other types.

Service

The AUDIOS service manages audio loading and caching. Audio decoding is implemented by the view-process, for this reason the service must be used in a headed app or headless app with renderer, in a headless app without renderer no view-process is spawned so no audio format will be available.

The audio service also define security limits, the AUDIOS.limits variable to configure these limits. See AudioLimits::default for the defaults.

use zng::{audio, prelude::*};

audio::AUDIOS.limits().modify(|l| {
    l.allow_uri = audio::UriFilter::allow_host("httpbin.org");
    l.max_encoded_len = 1.megabytes();
    l.max_decoded_len = 10.megabytes();
}); }

The example above changes the global limits to allow audio downloads only from an specific host and only allow audio with sizes less or equal to 1 megabyte and that only expands to up to 10 megabytes after decoding.

Full API

See zng_ext_audio for the full audio API.

Structs

AUDIOS

Audio loading, cache and render service.

AudioFormat

Represents an audio codec capability.

AudioHash

A 256-bit hash for audio tracks.

AudioLimits

Limits for audio loading and decoding.

AudioMix

Represents an audio source.

AudioOptions

Options for AUDIOS.audio.

AudioOutput

Represents an open audio output stream.

AudioOutputId

Unique identifier of an open audio output.

AudioTrack

State of an AudioVar.

Enums

AudioCacheMode

Cache mode of AUDIOS.

AudioDataFormat

Format of the audio bytes.

AudioOutputState

Represents the playback state if an audio output stream.

AudioSource

The different sources of an audio resource.

AudioSourceFilter

Represents a PathFilter and UriFilter.

Type Aliases

AudioVar

Represents an AudioTrack tracked by the AUDIOS cache.

UriFilter

Represents an AudioSource::Download path request filter.