From 78f52b4fe388bb63ed2ca674f7486edc11053f70 Mon Sep 17 00:00:00 2001 From: James Almer Date: Sun, 15 Sep 2019 00:06:34 -0300 Subject: [PATCH] avformat/rmdec.c: fix left shift of negative value in rm_sync() Fixes ticket 8143. Reviewed-by: Andreas Rheinhardt Signed-off-by: James Almer --- libavformat/rmdec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c index c9abd38d337..e95cc9f858c 100644 --- a/libavformat/rmdec.c +++ b/libavformat/rmdec.c @@ -724,8 +724,8 @@ static int rm_sync(AVFormatContext *s, int64_t *timestamp, int *flags, int *stre num = avio_rb16(pb); *timestamp = avio_rb32(pb); - mlti_id = (avio_r8(pb)>>1)-1<<16; - mlti_id = FFMAX(mlti_id, 0); + mlti_id = avio_r8((pb) >> 1) - 1; + mlti_id = FFMAX(mlti_id, 0) << 16; *flags = avio_r8(pb); /* flags */ } for(i=0;inb_streams;i++) { -- 2.39.2