jvdec: Make sure there is enough data for the id string.

Previously too little data could lead to a false detection.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-04-19 21:43:15 +02:00
parent 2a976debc1
commit 2a70d8304d