Trait StatefulVideoEncoderBackend

pub trait StatefulVideoEncoderBackend<Handle> {
    // Required methods
    fn consume_request(
        &mut self,
        request: &mut Option<BackendRequest<Handle>>,
    ) -> StatefulBackendResult<()>;
    fn sync(&mut self) -> StatefulBackendResult<()>;
    fn drain(&mut self) -> StatefulBackendResult<Vec<BackendOutput>>;
    fn poll(&mut self) -> StatefulBackendResult<Option<BackendOutput>>;
}

Generic trait for stateful encoder backends

Required Methods

fn consume_request( &mut self, request: &mut Option<BackendRequest<Handle>>, ) -> StatefulBackendResult<()>

Try to submit encode request to the backend. The backend may not be able to accept the request eg. if there are not enough available resources or backend desires to finish previous request first. The function shall not be blocking. If backend accepts the request for processing it shall take the request (take ownership of BackendRequest and set ref mut to None.

fn sync(&mut self) -> StatefulBackendResult<()>

Function shall block, until the backend can accept request with consume_request or will finished processing of some BackendRequest and poll can be used to fetch is result.

fn drain(&mut self) -> StatefulBackendResult<Vec<BackendOutput>>

Blocking function, until the backend finishes processing all BackendRequest, that the backend has accepted and all outputs of those requests are returned.

fn poll(&mut self) -> StatefulBackendResult<Option<BackendOutput>>

If the processing of any BackendRequest is finished then the function should yield it’s corresponding BackendOutput.

Implementors