ffmpeg | branch: master | Michael Niedermayer <michael@niedermayer.cc> | Wed Sep 29 00:18:53 2021 +0200| [1ad4782d2a17d9fed38c0356f1c9f790973eec01] | committer: Michael Niedermayer avcodec/siren: Improve the bits left threshold in decode_envelope() Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=1ad4782d2a17d9fed3...

libavcodec/siren.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/siren.c b/libavcodec/siren.c index 6cbb3e3ba7..bdb249144b 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);