From d4a7500febf1e84a1c41c02fd5dfa26f8bfcd4d4 Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Sat, 28 Sep 2019 04:26:07 +0200 Subject: avcodec/ituh263dec: Fix undefined left shift of negative number Fixes ticket #8160. Signed-off-by: Andreas Rheinhardt Signed-off-by: Michael Niedermayer (cherry picked from commit 324487b596fbcda0a5753c7bb7b2e96e9d512479) Signed-off-by: Andreas Rheinhardt --- libavcodec/ituh263dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index 6d1d771c16..c1005b0994 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -1286,7 +1286,7 @@ int ff_h263_decode_picture_header(MpegEncContext *s) for(i=0; i<13; i++){ for(j=0; j<3; j++){ int v= get_bits(&s->gb, 8); - v |= get_sbits(&s->gb, 8)<<8; + v |= get_sbits(&s->gb, 8) * (1 << 8); av_log(s->avctx, AV_LOG_DEBUG, " %5d", v); } av_log(s->avctx, AV_LOG_DEBUG, "\n"); -- cgit v1.2.1