%FFMPEG_EXE% -i "*.mkv" -ss 00:20:47.000 -to 00:20:53.000 -c:v libvpx -crf 4 -b:v 3000K -c:a libvorbis -y "name.mkv"
%FFMPEG_EXE% -i "name.mkv" -vf "fps=15,scale=426:240:flags=lanczos,palettegen" -y palette.png
%FFMPEG_EXE% -i "name.mkv" -i palette.png -lavfi "fps=15,scale=426:240:flags=lanczos [x]; [x][1:v] paletteuse" -y name.gif