Motion with MJPEG format in OpenWRT?

Right now my router implemented by OpenWRT. The router has motion and webcam for IP cam. But when I activated motion, the following error message appears: [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue [CRT] [VID] mjpegtoyuv420p: Corrupt image ... continue My webcam is a Logitech c270, and I believe it supports the MJPEG format. v4l2_palette 8 which it tells the router to use MJPEG for the webcam. I followed this website to solve the problem, but I can't find the file that suppose to be edited (file:common_video.c perhaps?). https://github.com/Mr-Dave/motion/issues/65