videosFactory

1. Video export audio mp3 aac
2.video remove audio
3.video add background musio audio
4.merger video to one video
5.cut video from start  duration
6.compress video with vga  framerate and bit rate
7.picture to video
8.reverse a video
9.rotate video 90 180 270 degree
10.scale video to %10-90%
11.video add waterremark
12.change video format to mp4 avi flv mkv wmv ...
13.change video's contrast brightness saturation
14.fast play ,slow play