y4m:YUV4MPEG2（.y4m）编码器

y4m YUV4MPEG2（.y4m）编码器/解码器。 。 用法 简单的流复制： extern crate y4m; use std :: io; let mut infh = io :: stdin (); let mut outfh = io :: stdout (); let mut dec = y4m :: decode ( & mut infh). unwrap (); let mut enc = y4m :: encode (dec. get_width (), dec. get_height (), dec. get_framerate ()) . with_colorspace (dec. get_colorspace ()) . write_header ( & mut outfh) . unwrap (); loop { match