Enum fidl_fuchsia_media::AudioCoreRequest

source · 
pub enum AudioCoreRequest {
    CreateAudioRenderer {
        audio_out_request: ServerEnd<AudioRendererMarker>,
        control_handle: AudioCoreControlHandle,
    },
    CreateAudioCapturerWithConfiguration {
        stream_type: AudioStreamType,
        configuration: AudioCapturerConfiguration,
        audio_capturer_request: ServerEnd<AudioCapturerMarker>,
        control_handle: AudioCoreControlHandle,
    },
    CreateAudioCapturer {
        loopback: bool,
        audio_in_request: ServerEnd<AudioCapturerMarker>,
        control_handle: AudioCoreControlHandle,
    },
    EnableDeviceSettings {
        enabled: bool,
        control_handle: AudioCoreControlHandle,
    },
    SetRenderUsageGain {
        usage: AudioRenderUsage,
        gain_db: f32,
        control_handle: AudioCoreControlHandle,
    },
    SetCaptureUsageGain {
        usage: AudioCaptureUsage,
        gain_db: f32,
        control_handle: AudioCoreControlHandle,
    },
    BindUsageVolumeControl {
        usage: Usage,
        volume_control: ServerEnd<VolumeControlMarker>,
        control_handle: AudioCoreControlHandle,
    },
    GetVolumeFromDb {
        usage: Usage,
        gain_db: f32,
        responder: AudioCoreGetVolumeFromDbResponder,
    },
    GetDbFromVolume {
        usage: Usage,
        volume: f32,
        responder: AudioCoreGetDbFromVolumeResponder,
    },
    SetInteraction {
        active: Usage,
        affected: Usage,
        behavior: Behavior,
        control_handle: AudioCoreControlHandle,
    },
    ResetInteractions {
        control_handle: AudioCoreControlHandle,
    },
    LoadDefaults {
        control_handle: AudioCoreControlHandle,
    },
}

Variants§

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CreateAudioRenderer

Creates an AudioRenderer which outputs audio to the default device.

Fields

§audio_out_request: ServerEnd<AudioRendererMarker>
§control_handle: AudioCoreControlHandle
§

CreateAudioCapturerWithConfiguration

Creates an AudioCapturer according to the given requirements.

pcm_stream_type sets the stream type of the stream to be delivered. It causes the source material to be reformatted/resampled if needed in order to produce the requested stream type.

usage is used by Fuchsia to make decisions about user experience. See AudioCaptureUsage for more details.

configuration must be initialized to a variant, or no capturer can be created.

Fields

§stream_type: AudioStreamType
§configuration: AudioCapturerConfiguration
§audio_capturer_request: ServerEnd<AudioCapturerMarker>
§control_handle: AudioCoreControlHandle
§

CreateAudioCapturer

Creates an AudioCapturer which either captures from the current default audio input device, or loops-back from the current default audio output device based on value passed for the loopback flag.

Fields

§loopback: bool
§audio_in_request: ServerEnd<AudioCapturerMarker>
§control_handle: AudioCoreControlHandle
§

EnableDeviceSettings

Fields

§enabled: bool
§control_handle: AudioCoreControlHandle
§

SetRenderUsageGain

Sets the Usage gain applied to Renderers. By default, the gain for all render usages is set to Unity (0 db).

Fields

§usage: AudioRenderUsage
§gain_db: f32
§control_handle: AudioCoreControlHandle
§

SetCaptureUsageGain

Sets the Usage gain applied to Capturers. By default, the gain for all capture usages is set to Unity (0 db).

Fields

§usage: AudioCaptureUsage
§gain_db: f32
§control_handle: AudioCoreControlHandle
§

BindUsageVolumeControl

Binds to a volume control protocol for the given usage.

Fields

§usage: Usage
§volume_control: ServerEnd<VolumeControlMarker>
§control_handle: AudioCoreControlHandle
§

GetVolumeFromDb

Queries the volume percentage [0, 1] that maps to a gain_db value for a particular usage. This is the same mapping as used by the VolumeControl from BindUsageVolumeControl.

Fields

§usage: Usage
§gain_db: f32
§responder: AudioCoreGetVolumeFromDbResponder
§

GetDbFromVolume

Queries the decibel value that maps to a volume percentage [0, 1] for a particular usage. This is the same mapping as used by the VolumeControl from BindUsageVolumeControl.

Fields

§usage: Usage
§volume: f32
§responder: AudioCoreGetDbFromVolumeResponder
§

SetInteraction

Sets how audio_core handles interactions of multiple active streams simultaneously. If streams of Usage active are processing audio, and streams of Usage affected are as well, the Behavior specified will be applied to the streams of Usage affected.

Fields

§active: Usage
§affected: Usage
§behavior: Behavior
§control_handle: AudioCoreControlHandle
§

ResetInteractions

Re-initializes the set of rules that are currently governing the interaction of streams in audio_core. The default behavior is ‘NONE’.

Fields

§control_handle: AudioCoreControlHandle
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LoadDefaults

Re-loads the platform policy configuration. Falls back to a default config if the platform does not provide a config.

Fields

§control_handle: AudioCoreControlHandle

Implementations§

Trait Implementations§

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impl Debug for AudioCoreRequest

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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