source input format造句

SIF ( Source Input Format ) is practically identical to CIF, but taken from MPEG-1 rather than ITU standards.
MPEG-1 videos are most commonly seen using Source Input Format ( SIF ) resolution : 352x240, 352x288, or 320x240.
CIF defines a video sequence with a resolution of 352 ?288 like PAL Source Input Format, a framerate of 30000 / 1001 ( roughly 29.97 ) frames like NTSC, with colour encoded using YCbCr 4 : 2 : 0.
It's difficult to find source input format in a sentence. 用source input format造句挺难的