* @param same true if i is the same as the last time we were called.
* @param s A subtitle that should be on this frame, or 0.
*/
- void process_video (boost::shared_ptr<Image> i, bool same, boost::shared_ptr<Subtitle> s);
+ void process_video (boost::shared_ptr<const Image> i, bool same, boost::shared_ptr<Subtitle> s);
/** Call with some audio data */
- void process_audio (boost::shared_ptr<AudioBuffers>);
+ void process_audio (boost::shared_ptr<const AudioBuffers>);
/** Called when a processing run has finished */
virtual void process_end ();