int check_frame_header(FILE *fp);
int read_frame_header(char *path);
int write_frame(VFrame *frame, VFrame *output, FrameWriterUnit *unit);
+ int can_copy_from(Asset *asset, int64_t position);
FrameWriterUnit* new_writer_unit(FrameWriter *writer);
static void get_parameters(BC_WindowBase *parent_window,
Asset *asset, BC_WindowBase* &format_window,