I've tried using JMF on a 64 bit environment I didnt find anythere 64 bit jmvfw.
Try Xuggler as Sai Ye Yan Naing Aye said in the first answer or you can also try FMJ.
From FMJ site:
FMJ is an open-source project with the goal of providing an alternative to Java Media
Framework (JMF), while remaining API-compatible with JMF. It aims to produce a single
API/Framework which can be used to capture, playback, process, and stream media across
multiple platforms.
Since FMJ is API-compatible with latest JMF, you may use existing JMF codes and run the.