How to get better quality converting MP4 to WMV with ffmpeg?

Question

I am converting MP4 files to WMV with these two rescaling commands:

ffmpeg -i test.mp4 -y -vf scale=-1:360 test1.wmv
ffmpeg -i test.mp4 -y -vf s         


        

Answer 1

Working answer in 2020, producing an output video without blockiness:

ffmpeg -i input.mp4 -q:v 1 -q:a 1 output.wmv