import VideoFrameProcessor from '../videoframeprocessor/VideoFrameProcessor';
import BackgroundReplacementVideoFrameProcessorObserver from './BackgroundReplacementVideoFrameProcessorObserver';
/**
 * Interface to define extra methods that need to be implemented for background replacement processing
 */
export default interface BackgroundReplacementProcessor extends VideoFrameProcessor {
    /**
     * Add an observer to receive notifications about Amazon background replacement processor events.
     * See {@link BackgroundReplacementVideoFrameProcessorObserver} for details.
     * If the observer has already been added, this method call has no effect.
     */
    addObserver(observer: BackgroundReplacementVideoFrameProcessorObserver): void;
    /**
     * Remove an existing observer. If the observer has not been previously
     * added via `addObserver`, this method call has no effect.
     */
    removeObserver(observer: BackgroundReplacementVideoFrameProcessorObserver): void;
    /**
     * The method will allow the builder to update the image blob mid stream.
     * @param blob
     */
    setImageBlob(blob: Blob): Promise<void>;
}