[Movie Studio] make transition complete when play the exported video

BZ: 61850

root cause: the async encode mode can't get the last encoded frame by
default, we need special method, that is push the last raw data to
encoder twice and get the last encoded frame.

Change-Id: I93540d33aa315301bdaf3f23ed908c83fa9c2d93
Signed-off-by: Gu, Wangyi <wangyi.gu@intel.com>
Reviewed-on: http://android.intel.com:8080/70522
Reviewed-by: Tang, Richard <richard.tang@intel.com>
Reviewed-by: Zhao, Leo <leo.zhao@intel.com>
Reviewed-by: Jiang, Fei <fei.jiang@intel.com>
Reviewed-by: Shi, PingX <pingx.shi@intel.com>
Tested-by: Shi, PingX <pingx.shi@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>
2 files changed