4 extern void quicktime_init_codec_dv(quicktime_video_map_t *);
5 extern void quicktime_init_codec_dv25(quicktime_video_map_t *);
6 extern void quicktime_init_codec_dvsd(quicktime_video_map_t *vtrack);
7 extern void quicktime_init_codec_dvcp(quicktime_video_map_t *);