Constant ffmpeg_dev::sys::AVPixelFormat_AV_PIX_FMT_YUVA420P9BE

pub const AVPixelFormat_AV_PIX_FMT_YUVA420P9BE: AVPixelFormat

< planar YUV 4:2:0 22.5bpp, (1 Cr & Cb sample per 2x2 Y & A samples), big-endian