Enum ndk::audio::AudioInputPreset

#[non_exhaustive]
#[repr(i32)]
pub enum AudioInputPreset {
    Generic = 1,
    Camcorder = 5,
    VoiceRecognition = 6,
    VoiceCommunication = 7,
    Unprocessed = 9,
    VoicePerformance = 10,
}

Available on crate features audio and api-level-28 only.

Defines the audio source. An audio source defines both a default physical source of audio signal, and a recording configuration.

Note that these match the equivalent values in MediaRecorder.AudioSource in the Android Java API.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Generic = 1

Use this preset when other presets do not apply.

Camcorder = 5

Use this preset when recording video.

VoiceRecognition = 6

Use this preset when doing speech recognition.

VoiceCommunication = 7

Use this preset when doing telephony or voice messaging.

Unprocessed = 9

Use this preset to obtain an input with no effects. Note that this input will not have automatic gain control so the recorded volume may be very low.

VoicePerformance = 10

Available on crate feature api-level-29 only.

Use this preset for capturing audio meant to be processed in real time and played back for live performance (e.g karaoke). The capture path will minimize latency and coupling with playback path.

Trait Implementations

impl Clone for AudioInputPreset

fn clone(&self) -> AudioInputPreset

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AudioInputPreset

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

Formats the value using the given formatter.

impl From<AudioInputPreset> for i32

fn from(enum_value: AudioInputPreset) -> Self

Converts to this type from the input type.

impl From<i32> for AudioInputPreset

fn from(number: i32) -> Self

Converts to this type from the input type.

impl FromPrimitive for AudioInputPreset

type Primitive = i32

fn from_primitive(number: Self::Primitive) -> Self

impl PartialEq for AudioInputPreset

fn eq(&self, other: &AudioInputPreset) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for AudioInputPreset

impl Eq for AudioInputPreset

impl StructuralPartialEq for AudioInputPreset