Function check_animation_over_video 

pub fn check_animation_over_video<E, M, D, C, P, R>(
    make_encoder: impl FnMut() -> E,
    make_muxer: impl FnMut() -> M,
    lag_frames: u32,
    capture: impl FnMut() -> P,
    make_demuxer: impl FnOnce() -> D,
    make_decoder: impl FnOnce() -> C,
    render: R,
    frames: &[PixelBuffer],
    durations: &[FrameDuration],
) -> Conformance
where
    E: VideoEncoder + Send,
    M: Muxer + Send,
    D: Demuxer + Send,
    C: VideoDecoder + Send,
    P: CaptureFrame + Send,
    R: RenderFrame + Send,

Verify the animation adapters over a video codec and a container.

Encodes frames with durations through AnimationVideoEncoder (the encoder from make_encoder, the muxer from make_muxer, pixels captured by capture), drained and undrained, then decodes the file through VideoAnimationDecoder (make_demuxer, make_decoder, render). Checked: draining never changes the bytes; with a streaming muxer, bytes become pending across every lag + 1 frames; the decoded animation has the same frames, pixels and exact durations; a declared frame count is binding.