rem: vorbis_info *vi; FILE  *fh;
add: FILE *fh;
context: get_ogg_runtime (char *filename) {	OggVorbis_File vf;	vorbis_info *vi;	FILE  *fh;	unsigned long runtime;	double rt;	fh = fopen(filename, "rb");	if (fh == NULL)		return (0);	if(ov_open(fh, &vf, NULL, 0) < 0)		return (0);	rt = ov_time_total(&vf, -1);	runtime = (unsigned long)(rt + 0.5);	ov_clear(&vf);	fclose(fh);	printf("%s : %lu (%f)\n",filename, runtime, rt);	return(runtime);}