From 9225ebd50d4f5fb88c05df59367b6b9b6e792773 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 10 Nov 2013 12:53:38 +0100 Subject: [PATCH] avformat/swfdec: return AVPROBE_SCORE_MAX / 4 for unexpected versions Signed-off-by: Michael Niedermayer --- libavformat/swfdec.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/libavformat/swfdec.c b/libavformat/swfdec.c index aa6ce8464e..e6ceec818a 100644 --- a/libavformat/swfdec.c +++ b/libavformat/swfdec.c @@ -59,11 +59,14 @@ static int swf_probe(AVProbeData *p) return 0; /* check file header */ - if ((p->buf[0] == 'F' || p->buf[0] == 'C') && p->buf[1] == 'W' && - p->buf[2] == 'S' && p->buf[3] < 20) - return AVPROBE_SCORE_MAX; - else + if ( AV_RB24(p->buf) != AV_RB24("CWS") + && AV_RB24(p->buf) != AV_RB24("FWS")) return 0; + + if (p->buf[3] >= 20) + return AVPROBE_SCORE_MAX / 4; + + return AVPROBE_SCORE_MAX; } #if CONFIG_ZLIB