From 1ac7d1ac50291cf9b4f2de0c8224bbd2eb05ece5 Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Sat, 16 May 2009 17:02:44 +0000 Subject: [PATCH] ac3dec: fix coupling range check. the start subband must be less than the end subband. Originally committed as revision 18857 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/ac3dec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c index 7d9d0142df..bc39fb35b9 100644 --- a/libavcodec/ac3dec.c +++ b/libavcodec/ac3dec.c @@ -872,8 +872,8 @@ static int decode_audio_block(AC3DecodeContext *s, int blk) /* TODO: modify coupling end freq if spectral extension is used */ cpl_start_subband = get_bits(gbc, 4); cpl_end_subband = get_bits(gbc, 4) + 3; - if (cpl_start_subband > cpl_end_subband) { - av_log(s->avctx, AV_LOG_ERROR, "invalid coupling range (%d > %d)\n", + if (cpl_start_subband >= cpl_end_subband) { + av_log(s->avctx, AV_LOG_ERROR, "invalid coupling range (%d >= %d)\n", cpl_start_subband, cpl_end_subband); return -1; }