Signed-off-by: Paul B Mahol <onemda@gmail.com>
Paul B Mahol authored on 2013/05/15 06:03:09... | ... |
@@ -73,8 +73,11 @@ static int wv_probe(AVProbeData *p) |
73 | 73 |
/* check file header */ |
74 | 74 |
if (p->buf_size <= 32) |
75 | 75 |
return 0; |
76 |
- if (p->buf[0] == 'w' && p->buf[1] == 'v' && |
|
77 |
- p->buf[2] == 'p' && p->buf[3] == 'k') |
|
76 |
+ if (AV_RL32(&p->buf[0]) == MKTAG('w', 'v', 'p', 'k') && |
|
77 |
+ AV_RL32(&p->buf[4]) >= 24 && |
|
78 |
+ AV_RL32(&p->buf[4]) <= WV_BLOCK_LIMIT && |
|
79 |
+ AV_RL16(&p->buf[8]) >= 0x402 && |
|
80 |
+ AV_RL16(&p->buf[8]) <= 0x410) |
|
78 | 81 |
return AVPROBE_SCORE_MAX; |
79 | 82 |
else |
80 | 83 |
return 0; |