Struct Vp9Encoder 

pub struct Vp9Encoder { /* private fields */ }

The pure-Rust VP9 encoder.

Construct via Encodable::new. The first frame (and every keyframe_interval-th frame, plus any frame after Vp9Encoder::force_keyframe) is an intra keyframe; the rest are single-reference inter frames with integer-pel motion compensation. A one-pass VBR [RateControl] picks the per-frame quantizer within the app’s [min_quantizer, max_quantizer] window; [SpeedFeatures] derived from cpu_used tune the motion search.

Implementations

impl Vp9Encoder

pub fn last_reconstruction_i420(&self) -> Option<Vec<u8>>

The most recently encoded frame’s reconstruction as a tight-packed I420 buffer at the cropped dimensions, or None before the first frame.

This is exactly what a conformant decoder must reproduce, so tests can assert bit-exactness against the libvpx oracle.

pub fn force_keyframe(&mut self)

Request that the next encoded frame be a keyframe, regardless of the keyframe interval. The flag clears after that frame is emitted. Useful when the app needs a decodable refresh point (e.g. a new participant joins).

Trait Implementations

impl Encodable for Vp9Encoder

fn new(config: EncoderConfig) -> Result<Self>

Create a new encoder with the given configuration.

fn update_bitrate_kbps(&mut self, kbps: u32) -> Result<()>

Update the target bitrate at runtime.

fn encode(&mut self, pts: i64, i420: &[u8]) -> Result<Option<EncodedFrame>>

Encode one planar I420 frame.