add verbatim catchall if no subframes are generated

diff --git a/src/libFLAC/stream_encoder.c b/src/libFLAC/stream_encoder.c
index 871e61f..ec5590a 100644 (file)
--- a/src/libFLAC/stream_encoder.c
+++ b/src/libFLAC/stream_encoder.c
@@ -2108,7 +2108,11 @@ FLAC__bool process_subframe_(
                }
        }
 
-       FLAC__ASSERT(_best_bits < UINT_MAX);
+       /* under rare circumstances this can happen when all but lpc subframe types are disabled: */
+       if(_best_bits == UINT_MAX) {
+               FLAC__ASSERT(_best_subframe == 0);
+               _best_bits = evaluate_verbatim_subframe_(integer_signal, frame_header->blocksize, subframe_bps, subframe[_best_subframe]);
+       }
 
        *best_subframe = _best_subframe;
        *best_bits = _best_bits;