Struct Vp8FrameHeader 

pub struct Vp8FrameHeader {
    pub frame_type: u8,
    pub version: u8,
    pub show_frame: bool,
    pub first_part_size: u32,
    pub width: u32,
    pub height: u32,
    pub horizontal_scale: u8,
    pub vertical_scale: u8,
}

Output of the VP8 uncompressed-header parsers.

Fields

frame_type: u8

0 = keyframe (RFC 6386 calls this KEY_FRAME), 1 = interframe.

version: u8

Bitstream version (0..3). RFC 6386 §9.1 — only 0 is in widespread use; libvpx may emit 1, 2 or 3 to select the loop-filter / motion-comp tweaks.

show_frame: bool

show_frame bit. False here means the encoder emitted an alternate-reference frame that should not be rendered.

first_part_size: u32

first_part_size — length in bytes of the compressed “first partition” (the partition that holds the bool-coded frame header + per-MB modes, before the residual partitions).

width: u32

Coded width in luma samples (keyframes only — 0 on interframes since RFC 6386 only re-transmits dimensions for keyframes).

height: u32

Coded height in luma samples (keyframes only).

horizontal_scale: u8

horizontal_scale — 0 means no horizontal upscale at display.

vertical_scale: u8

vertical_scale — 0 means no vertical upscale at display.

Trait Implementations

impl Clone for Vp8FrameHeader

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Vp8FrameHeader

impl Debug for Vp8FrameHeader

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

Formats the value using the given formatter.

impl Default for Vp8FrameHeader

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Vp8FrameHeader

impl PartialEq for Vp8FrameHeader

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Vp8FrameHeader