decoder/oggflac: moved stream_info check to oggflac_decode()

src/decoder/oggflac_plugin.c

@@ -232,12 +232,6 @@ full_decoder_init_and_read_metadata(struct flac_data *data,
 		goto fail;
 	}
 
-	if (!data->have_stream_info) {
-		OggFLAC__seekable_stream_decoder_delete(decoder);
-		g_warning("no STREAMINFO packet found");
-		return NULL;
-	}
-
 	return decoder;
 
 fail:
@@ -308,6 +302,11 @@ oggflac_decode(struct decoder * mpd_decoder, struct input_stream *input_stream)
 		goto fail;
 	}
 
+	if (!data.have_stream_info) {
+		g_warning("no STREAMINFO packet found");
+		goto fail;
+	}
+
 	if (!audio_format_valid(&data.audio_format)) {
 		g_warning("Invalid audio format: %u:%u:%u\n",
 			  data.audio_format.sample_rate,