ogg: revert "use ogg_fopen() instead of ogg_open()"

src/decoder/oggvorbis_plugin.c

@@ -327,16 +327,19 @@ oggvorbis_decode(struct decoder *decoder, struct input_stream *inStream)
 
 static struct tag *oggvorbis_TagDup(const char *file)
 {
-	char *duplicated;
-	int err;
 	struct tag *ret;
+	FILE *fp;
 	OggVorbis_File vf;
 
-	duplicated = g_strdup(file);
-	err = ov_fopen(duplicated, &vf);
-	g_free(duplicated);
-	if (err < 0)
+	fp = fopen(file, "r");
+	if (!fp) {
 		return NULL;
+	}
+
+	if (ov_open(fp, &vf, NULL, 0) < 0) {
+		fclose(fp);
+		return NULL;
+	}
 
 	ret = oggCommentsParse(ov_comment(&vf, -1)->user_comments);