- /** Called with a frame of video.
- * @param i Video frame image.
- * @param f Frame number within the film's source.
- * @param s A subtitle that should be on this frame, or 0.
- */
- virtual void do_process_video (boost::shared_ptr<const Image> i, SourceFrame f, boost::shared_ptr<Subtitle> s) = 0;
-
- /** Called with some audio data */
- virtual void do_process_audio (boost::shared_ptr<const AudioBuffers>) = 0;