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-rw-r--r--libavcodec/wavpackenc.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/libavcodec/wavpackenc.c b/libavcodec/wavpackenc.c
index 005cf7c2e5..3631a0819f 100644
--- a/libavcodec/wavpackenc.c
+++ b/libavcodec/wavpackenc.c
@@ -2813,6 +2813,8 @@ static int wavpack_encode_block(WavPackEncodeContext *s,
block_size = bytestream2_tell_p(&pb);
AV_WL32(out + 4, block_size - 8);
+ av_assert0(put_bits_left(&s->pb) > 0);
+
return block_size;
}