Struct NullSink 

pub struct NullSink {
    pub frames_received: u64,
    pub bytes_received: u64,
    pub format_seen: Option<SourceFormat>,
}

Discarding sink — useful for correctness tests + dry runs that exercise the pull loop without wiring an encoder. Records a frame + byte counter so callers can assert progress.

Fields

frames_received: u64

bytes_received: u64

format_seen: Option<SourceFormat>

Trait Implementations

impl Default for NullSink

fn default() -> NullSink

Returns the “default value” for a type.

impl SceneSink for NullSink

fn init(&mut self, format: &SourceFormat) -> Result<()>

Called once before the first push. The sink may return Error::Unsupported if it can’t handle the format.

fn push(&mut self, frame: RenderedFrame) -> Result<()>

Consume one rendered frame. Time is embedded in the frame’s video pts + audio sample count; the sink itself doesn’t need to track timestamps separately.

fn finalise(&mut self) -> Result<()>

Flush + close. No more push calls after this. Always called by drive, even on error paths.