Chih-Chung Chang cb04a1f3a3 Speed up thumbnail generation.
We don't need to have precise position for thumbnails, so we add
a tolerance parameter to the decoder. The decoder can return an
earlier frame within the tolerance time given.

Change-Id: I0a49ed6b03f8c3264606e4143dd5ecf48e9d0f62
2011-08-15 10:08:33 +08:00
..
2011-08-15 10:08:33 +08:00