From 741b56fceece2b2de53466b952ed60b61544cc60 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 3 Feb 2015 23:03:38 +0100 Subject: [PATCH] avcodec/svq1dec: Add assert to ensure "stages >= 0" This is currently always true, the assert protects against future changes to the code breaking this assumtation Signed-off-by: Michael Niedermayer --- libavcodec/svq1dec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/svq1dec.c b/libavcodec/svq1dec.c index 94846538fc..a95c7c866e 100644 --- a/libavcodec/svq1dec.c +++ b/libavcodec/svq1dec.c @@ -193,6 +193,7 @@ static int svq1_decode_block_intra(GetBitContext *bitbuf, uint8_t *pixels, stages, level); return AVERROR_INVALIDDATA; /* invalid vector */ } + av_assert0(stages >= 0); mean = get_vlc2(bitbuf, svq1_intra_mean.table, 8, 3); @@ -255,6 +256,7 @@ static int svq1_decode_block_non_intra(GetBitContext *bitbuf, uint8_t *pixels, stages, level); return AVERROR_INVALIDDATA; /* invalid vector */ } + av_assert0(stages >= 0); mean = get_vlc2(bitbuf, svq1_inter_mean.table, 9, 3) - 256;