int read_jpegls_frame(FILE *in, jpeg_ls_header *jp);
int read_jpegls_scan(FILE *in, jpeg_ls_header *jp);
int read_jpegls_extmarker(FILE *in, jpeg_ls_header *jp);
int read_jpegls_frame(FILE *in, jpeg_ls_header *jp);
int read_jpegls_scan(FILE *in, jpeg_ls_header *jp);
int read_jpegls_extmarker(FILE *in, jpeg_ls_header *jp);