Merge commit 'e30b068e'

* commit 'e30b068e':
  wmapro: make sure there is room to store the current packet

The check is replaced by an assert as it is impossible to occur
See: 780d4547Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/wmaprodec.c

@@ -1469,6 +1469,8 @@ static void save_bits(WMAProDecodeCtx *s, GetBitContext* gb, int len,
         return;
     }
 
+    av_assert0(len <= put_bits_left(&s->pb));
+
     s->num_saved_bits += len;
     if (!append) {
         avpriv_copy_bits(&s->pb, gb->buffer + (get_bits_count(gb) >> 3),