[0:a] atrim=start=0:end=10.72 [t0a]; [1:a] atrim=start=0:end=33.56 [t1a]; [t0a][t1a]concat=n=2:v=0:a=1[a]; [2:v]crop=1200:1200:0:0,scale=768:-2,format=yuva420p[img_bg];[img_bg]subtitles='/imagecap/temp/0100000059e4aa6f981e08de0a79784a.ass':fontsdir=/imagecap/temp/0100000059e4aa6f981e08de0a79784a:force_style='Fontname='GothamNarrow-Book''[vbgsub];