Struct MediaMeta 

pub struct MediaMeta {
    pub width: Option<u32>,
    pub height: Option<u32>,
    pub duration_secs: Option<f64>,
}

媒体元数据；字段为 None 表示该文件类型无此属性或读取失败

Fields

width: Option<u32>

像素宽度（视频为编码分辨率，未处理旋转元数据）

height: Option<u32>

像素高度

duration_secs: Option<f64>

时长（秒）；视频取容器 duration，音频取流属性

Implementations

impl MediaMeta

pub fn dimensions(&self) -> Option<(u32, u32)>

宽高是否构成有效的“分辨率“展示值

Trait Implementations

impl Clone for MediaMeta

fn clone(&self) -> MediaMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MediaMeta

impl Debug for MediaMeta

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

Formats the value using the given formatter.

impl Default for MediaMeta

fn default() -> MediaMeta

Returns the “default value” for a type.

impl PartialEq for MediaMeta

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MediaMeta