diff --git a/src/libOggFLAC/ogg_decoder_aspect.c b/src/libOggFLAC/ogg_decoder_aspect.c
index a0f34a67..3c86cfed 100644
--- a/src/libOggFLAC/ogg_decoder_aspect.c
+++ b/src/libOggFLAC/ogg_decoder_aspect.c
@@ -91,6 +91,13 @@ void OggFLAC__ogg_decoder_aspect_reset(OggFLAC__OggDecoderAspect *aspect)
 	aspect->have_working_page = false;
 }
 
+/*@@@@@@ needed? */
+unsigned OggFLAC__ogg_decoder_aspect_get_unconsumed_bytes(OggFLAC__OggDecoderAspect *aspect)
+{
+	FLAC__ASSERT(0 != aspect);
+	return aspect->sync_state.fill - aspect->sync_state.returned;
+}
+
 OggFLAC__OggDecoderAspectReadStatus OggFLAC__ogg_decoder_aspect_read_callback_wrapper(OggFLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], unsigned *bytes, OggFLAC__OggDecoderAspectReadCallbackProxy read_callback, void *decoder, void *client_data)
 {
 	static const unsigned OGG_BYTES_CHUNK = 8192;