convert full sbs to framepacking using ffmpeg / avconv or other linux tools?

[Catscrash]

Hi,

is there a way to convert full sbs material (3840*1080, two 1920*1080 images side by side) to framepacking output (1920*1080 + 45*1080px black + 1920) using linux tools like ffmpeg?

Using a 1920*2205*24hz resolution and the bino player I can get my benq W1070 to play 1080p fullhd 3d but the bino player has some disadvantages, so I would like to use other players like mplayer or vlc. For this I need the material to be converted beforehand to the mentioned formats

thanks for any help
Catscrash

[Catscrash]

okay, so far I got

ffmpeg -i input -y -filter_complex "[0:0] crop=in_w/2:in_h:0:0 [left]; [0:0] crop=in_w/2:in_h:in_w/2:0 [right]; [left] pad=in_w:in_h*2+45 [left_padded]; [left_padded][right] overlay=0:main_h/2" -x264opts frame-packing=4 -strict experimental -map 0:1 -c:a copy output

the only thing that's still weird, is that I get an output of 2204 instead of 2206. Can someone help me there?