枚举 AVDurationEstimationMethod 

#[repr(i32)]
pub enum AVDurationEstimationMethod {
    AVFMT_DURATION_FROM_PTS = 0,
    AVFMT_DURATION_FROM_STREAM = 1,
    AVFMT_DURATION_FROM_BITRATE = 2,
}

The duration of a video can be estimated through various ways, and this enum can be used to know how the duration was estimated.

Variants

AVFMT_DURATION_FROM_PTS = 0

< Duration accurately estimated from PTSes

AVFMT_DURATION_FROM_STREAM = 1

< Duration estimated from a stream with a known duration

AVFMT_DURATION_FROM_BITRATE = 2

< Duration estimated from bitrate (less accurate)

trait 实现

impl Clone for AVDurationEstimationMethod

fn clone(&self) -> AVDurationEstimationMethod

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 AVDurationEstimationMethod

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 AVDurationEstimationMethod

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 AVDurationEstimationMethod

fn eq(&self, other: &AVDurationEstimationMethod) -> 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 AVDurationEstimationMethod

impl Eq for AVDurationEstimationMethod

impl StructuralPartialEq for AVDurationEstimationMethod