if (atv->is_audio_track()) {
- AudioPlaylist* playlist = dynamic_cast<AudioPlaylist*>(atv->get_diskstream()->playlist());
+ boost::shared_ptr<AudioPlaylist> playlist = boost::dynamic_pointer_cast<AudioPlaylist>(atv->get_diskstream()->playlist());
if (playlist && write_audio_range (*playlist, atv->get_diskstream()->n_channels(), ts) == 0) {
ret = -1;