VideoViewMode

根据SEI自动决策画面模式（默认）

强制显示原始画面

强制上下等分

强制左右等分

自定义显示 须同时设置customRects

Returns a representation of an immutable list of all enum entries, in the order they're declared.

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Returns an array containing the constants of this enum type, in the order they're declared.