avformat/swfdec: return AVPROBE_SCORE_MAX / 4 for unexpected versions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2013-11-10 12:53:38 +01:00
parent b570835296
commit 9225ebd50d

View File

@ -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