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-rw-r--r--libavformat/jvdec.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavformat/jvdec.c b/libavformat/jvdec.c
index fbd4f1e5f4..3977594f8b 100644
--- a/libavformat/jvdec.c
+++ b/libavformat/jvdec.c
@@ -52,8 +52,8 @@ typedef struct {
static int read_probe(AVProbeData *pd)
{
- if (pd->buf[0] == 'J' && pd->buf[1] == 'V' &&
- !memcmp(pd->buf + 4, MAGIC, FFMIN(strlen(MAGIC), pd->buf_size - 4)))
+ if (pd->buf[0] == 'J' && pd->buf[1] == 'V' && strlen(MAGIC) <= pd->buf_size - 4 &&
+ !memcmp(pd->buf + 4, MAGIC, strlen(MAGIC)))
return AVPROBE_SCORE_MAX;
return 0;
}