[FFmpeg-devel] [PATCH] avformat/rmdec.c: fix left shift of negative value in rm_sync()
James Almer
jamrial at gmail.com
Sun Sep 15 06:22:39 EEST 2019
Fixes ticket 8143.
Signed-off-by: James Almer <jamrial at gmail.com>
---
libavformat/rmdec.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index c9abd38d33..ccdc38f98a 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -724,8 +724,7 @@ 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 = FFMAX((avio_r8(pb) >> 1) - 1, 0) << 16;
*flags = avio_r8(pb); /* flags */
}
for(i=0;i<s->nb_streams;i++) {
--
2.22.0
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