From fcbe421cee55e06c62d1d5d1f3cc7c522e7210a4 Mon Sep 17 00:00:00 2001 From: Alex Converse Date: Wed, 28 Sep 2011 17:50:51 -0700 Subject: prores: Handle 0 or fewer bits left show_bits() is undefined when the number of bits is less than or equal to zero. --- libavcodec/proresdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'libavcodec/proresdec.c') diff --git a/libavcodec/proresdec.c b/libavcodec/proresdec.c index 759c10b6e5..c70d145345 100644 --- a/libavcodec/proresdec.c +++ b/libavcodec/proresdec.c @@ -427,13 +427,13 @@ static inline void decode_ac_coeffs(GetBitContext *gb, DCTELEM *out, lev_cb_index = lev_to_cb_index[FFMIN(level, 9)]; bits_left = get_bits_left(gb); - if (bits_left <= 8 && !show_bits(gb, bits_left)) + if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left))) return; run = decode_vlc_codeword(gb, ac_codebook[run_cb_index]); bits_left = get_bits_left(gb); - if (bits_left <= 8 && !show_bits(gb, bits_left)) + if (bits_left <= 0 || (bits_left <= 8 && !show_bits(gb, bits_left))) return; level = decode_vlc_codeword(gb, ac_codebook[lev_cb_index]) + 1; -- cgit v1.2.3