ffmpeg -i test.mxf -c copy -c:v mpeg2video -b:v 5000k
       -color_primaries 1 -color_trc 1 -colorspace 1 out.mxf

ffmpeg -y -i Blue32x32.png -c:v libx264 -pix_fmt yuv420p -preset:v slow -profile:v baseline -crf 20 -vf scale=out_color_matrix=bt709 -color_primaries bt709 -color_trc bt709 -colorspace bt709 Blue32x32_709.m4v
ffmpeg -y -i Blue32x32_709.m4v Blue32x32_709.y4m
od -v -t u1 Blue32x32_709.y4m