Merge pull request #3 from Liuchang0812/dev

原始界面以及获得原始帧
Merge pull request #4 from changer-z-xy/dev

可以播放视频了……
first integration of user interface

Signed-off-by: changer_z_xy <changer.z.xy@gmail.com>
Merge branch 'master' of git://github.com/Liuchang0812/video-copy into dev
Merge branch 'dev' of git://github.com/Liuchang0812/video-copy into dev