[FFmpeg-devel] [PATCH 3/3] avcodec/siren: Improve the bits left threshold in decode_envelope()

[Michael Niedermayer]

Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 libavcodec/siren.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/siren.c b/libavcodec/siren.c
index 8c9628e2d8e..ee7514f93c4 100644
--- a/libavcodec/siren.c
+++ b/libavcodec/siren.c
@@ -447,7 +447,7 @@ static int decode_envelope(SirenContext *s, GetBitContext *gb,
         int index = 0;
 
         do {
-            if (get_bits_left(gb) < 4)
+            if (get_bits_left(gb) < 4 + number_of_regions - i + s->checksum_bits)
                 return AVERROR_INVALIDDATA;
             index = differential_decoder_tree[i - 1][index][get_bits1(gb)];
         } while (index > 0);
-- 
2.17.1