YUY2 and mjpg video encoding format differences

Most of the cameras are now using a free-drive camera, there are generally two transmission formats, YUY2 and Mjpg, the former is uncompressed image format video, system resource consumption (because no decoding), do not need a decoder, the disadvantage is that the frame rate is slightly slower (limited by the bandwidth of USB allocation), The latter is equivalent to the JPEG image Compression format, the advantage is high frame rate (video open fast, exposure fast), the disadvantage is that the image has a mosaic, and requires a decoder, will occupy the PC system resources.