枚举 AVAudioServiceType 

#[repr(i32)]
pub enum AVAudioServiceType {
    AV_AUDIO_SERVICE_TYPE_MAIN = 0,
    AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
    AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
    AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
    AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
    AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
    AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
    AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
    AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
    AV_AUDIO_SERVICE_TYPE_NB = 9,
}

Variants

AV_AUDIO_SERVICE_TYPE_MAIN = 0

AV_AUDIO_SERVICE_TYPE_EFFECTS = 1

AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2

AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3

AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4

AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5

AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6

AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7

AV_AUDIO_SERVICE_TYPE_KARAOKE = 8

AV_AUDIO_SERVICE_TYPE_NB = 9

< Not part of ABI

trait 实现

impl Clone for AVAudioServiceType

fn clone(&self) -> AVAudioServiceType

Returns a duplicate of the value. 阅读更多

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

从 source 执行拷贝赋值。 阅读更多

impl Debug for AVAudioServiceType

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

使用给定的格式化器格式化该值。 阅读更多

impl Hash for AVAudioServiceType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. 阅读更多

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. 阅读更多

impl PartialEq for AVAudioServiceType

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

Tests for self and other values to be equal, and is used by ==.

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

测试 !=。默认实现几乎总是足够的，没有充分理由不应被重写。

impl Copy for AVAudioServiceType

impl Eq for AVAudioServiceType

impl StructuralPartialEq for AVAudioServiceType