Struct Config 

#[non_exhaustive]
pub struct Config {
    pub kind: Kind,
    pub latency_max: Option<Duration>,
    pub resize: Option<Size>,
    pub gpu_frames: bool,
}

Decoder configuration.

#[non_exhaustive]: build via Config::new (or default()) and set the optional fields, so future knobs don’t break callers.

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.

kind: Kind

Which backend to use.

latency_max: Option<Duration>

Upper bound on buffering before a stalled group is skipped. None uses the moq-mux default (skip aggressively); set it to your playout buffer for a softer skip. Forwarded to the container consumer’s with_latency.

resize: Option<Size>

Ask the decoder to emit frames at this size (both dimensions even) instead of the stream’s native one. Best effort: a hardware decoder with a built-in scaler (NVDEC) honors it for free, other backends ignore it. Check each Frame’s dimensions and scale the remainder yourself.

gpu_frames: bool

Ask the decoder to leave each picture on the GPU, as the surface the hardware decoded it into, rather than downloading it to CPU memory.

For a consumer that draws the frames, render::Renderer imports such a surface directly, so the picture never touches system memory. Off by default because it is not free to a consumer that does not draw: handing a surface out retires it from the decoder’s recycling pool, which costs an allocation per picture, and a CPU consumer then pays the download it would have paid anyway.

Best effort, like resize: only the VAAPI backend honors it today and the others ignore it, so match on each Frame’s surface rather than assuming. A frame that does come back GPU-resident still answers Surface::into_i420, so nothing downstream breaks on it.

Implementations

impl Config

pub fn new() -> Self

A default config: automatic backend selection, default latency.

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Config

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

Formats the value using the given formatter.

impl Default for Config

fn default() -> Config

Returns the “default value” for a type.