ImageMagickEncoder (boost::shared_ptr<const Film> f, boost::shared_ptr<const Options> o);
void process_begin (int64_t audio_channel_layout) {}
- void process_video (boost::shared_ptr<Image>, int, boost::shared_ptr<Subtitle>);
+ void process_video (boost::shared_ptr<const Image>, int, boost::shared_ptr<Subtitle>);
void process_audio (boost::shared_ptr<const AudioBuffers>) {}
void process_end () {}
};