1. It is convenient to cut the picture vertically, which is very useful in some scene layout(Watch the video for details.).
2. More video format support (all mainstream video formats).
".asf", ".avi", ".dv", ".m4v", ".mov", ".mp4", ".mpg", ".mpeg", ".ogv", ".vp8", ".webm", ".wmv"
3. The aspect ratio of the camera view supports customization.
4. Support browsing and playing the picture folder in var!