based on HTML5

preset data photo01 photo02 photo03 photo04 video01 video02 video03 video04
02 x 02 03 x 03 04 x 04 05 x 05 08 x 08 12 x 12 16 x 16 32 x 32
1px / frame 2px / frame 3px / frame 5px / frame 7px / frame