Struct AV1Metadata

#[non_exhaustive]
pub struct AV1Metadata {
    pub still_picture: bool,
    pub max_frame_width: NonZeroU32,
    pub max_frame_height: NonZeroU32,
    pub bit_depth: u8,
    pub seq_profile: u8,
    pub chroma_subsampling: (bool, bool),
    pub monochrome: bool,
}

See AvifData::primary_item_metadata()

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

still_picture: bool

Should be true for non-animated AVIF

max_frame_width: NonZeroU32

max_frame_height: NonZeroU32

bit_depth: u8

8, 10, or 12

seq_profile: u8

0, 1 or 2 for the level of complexity

chroma_subsampling: (bool, bool)

Horizontal and vertical. false is full-res.

monochrome: bool

Implementations

impl AV1Metadata

pub fn parse_av1_bitstream(obu_bitstream: &[u8]) -> Result<Self>

Parses raw AV1 bitstream (OBU sequence header) only.

This is for the bare image payload from an encoder, not an AVIF/HEIF file. To parse AVIF files, see AvifData::from_reader().

Trait Implementations

impl Clone for AV1Metadata

fn clone(&self) -> AV1Metadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AV1Metadata

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

Formats the value using the given formatter.