0:00:00.157613000 10146 0x804e050 DEBUG              basesrc gstbasesrc.c:1896:g
st_base_src_default_negotiate:<v4l2src0> caps of src: video/x-raw-yuv, format=(f
ourcc)UYVY, width=(int)640, height=(int)480, framerate=(int){  }; video/x-raw-yu
v, format=(fourcc)UYVY, width=(int)352, height=(int)288, framerate=(int){  }; vi
deo/x-raw-yuv, format=(fourcc)UYVY, width=(int)320, height=(int)240, framerate=(
int){  }
0:00:00.175731000 10146 0x804e050 DEBUG              basesrc gstbasesrc.c:1903:g
st_base_src_default_negotiate:<v4l2src0> caps of peer: video/x-raw-yuv, width=(i
nt)640, height=(int)480, framerate=(fraction)[ 0/1, 2147483647/1 ], format=(four
cc)UYVY
0:00:00.175857000 10146 0x804e050 DEBUG              basesrc gstbasesrc.c:1909:gst_base_src_default_negotiate:<v4l2src0> intersect: EMPTY
0:00:00.175878000 10146 0x804e050 DEBUG              basesrc gstbasesrc.c:2054:gst_base_src_start:<v4l2src0> could not negotiate, stopping
0:00:00.175895000 10146 0x804e050 WARN               basesrc gstbasesrc.c:2056:gst_base_src_start:<v4l2src0> error: Could not negotiate format