Struct Vp8MetadataBlock 

pub struct Vp8MetadataBlock {
    pub payload: Vec<u8>,
}

A VP8 user-data extension block.

VP8 does not define a formal SEI syntax, so this structure embeds metadata using an application-level convention: a marker byte (0xFE) followed by a 4-byte big-endian length, followed by the payload. This block is placed after the last partition data and before the end of the data partition.

Important: this is not part of the VP8 bitstream specification. It is OxiMedia’s application-level convention for attaching metadata to VP8 packets when the container does not provide a side-data channel.

Fields

payload: Vec<u8>

Serialised SEI payload (output of SeiEncoder::finish).

Implementations

impl Vp8MetadataBlock

pub fn new(payload: Vec<u8>) -> Self

Create a VP8 metadata block from a pre-serialised SEI payload.

pub fn to_bytes(&self) -> Vec<u8>

Serialise to bytes.

Wire format: [0xFE][length: u32 BE][payload...]

pub fn from_bytes(raw: &[u8]) -> CodecResult<Self>

Parse a VP8 metadata block from raw bytes.

Trait Implementations

impl Clone for Vp8MetadataBlock

fn clone(&self) -> Vp8MetadataBlock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Vp8MetadataBlock

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

Formats the value using the given formatter.

impl PartialEq for Vp8MetadataBlock

fn eq(&self, other: &Vp8MetadataBlock) -> bool

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

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

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

impl Eq for Vp8MetadataBlock

impl StructuralPartialEq for Vp8MetadataBlock