结构体 AVPacketSideData 

#[repr(C)]
pub struct AVPacketSideData {
    pub data: *mut u8,
    pub size: usize,
    pub type_: AVPacketSideDataType,
}

This structure stores auxiliary information for decoding, presenting, or otherwise processing the coded stream. It is typically exported by demuxers and encoders and can be fed to decoders and muxers either in a per packet basis, or as global side data (applying to the entire coded stream).

Global side data is handled as follows:

• During demuxing, it may be exported through @ref AVCodecParameters.coded_side_data “AVStream’s codec parameters”, which can then be passed as input to decoders through the @ref AVCodecContext.coded_side_data “decoder context’s side data”, for initialization.
• For muxing, it can be fed through @ref AVCodecParameters.coded_side_data “AVStream’s codec parameters”, typically the output of encoders through the @ref AVCodecContext.coded_side_data “encoder context’s side data”, for initialization.

Packet specific side data is handled as follows:

• During demuxing, it may be exported through @ref AVPacket.side_data “AVPacket’s side data”, which can then be passed as input to decoders.
• For muxing, it can be fed through @ref AVPacket.side_data “AVPacket’s side data”, typically the output of encoders.

Different modules may accept or export different types of side data depending on media type and codec. Refer to @ref AVPacketSideDataType for a list of defined types and where they may be found or used.

Fields

data: *mut u8

size: usize

type_: AVPacketSideDataType

trait 实现

impl Clone for AVPacketSideData

fn clone(&self) -> AVPacketSideData

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 AVPacketSideData

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 PartialEq for AVPacketSideData

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

impl Eq for AVPacketSideData

impl StructuralPartialEq for AVPacketSideData