[0:v]split=1[c0v];[0:a]asplit=1[c0a];[1:v]split=2[c1v][c2v];[1:a]asplit=2[c1a][c2a];[2:v]split=1[c3v];[2:a]asplit=1[c3a];[c0v] trim=start=0:end=22.031,setpts=PTS-STARTPTS,fps=15,settb=AVTB [t0v]; [c0a] atrim=start=0:end=21.531,asetpts=PTS-STARTPTS [t0a]; [c1v] trim=start=0:end=20.47,setpts=PTS-STARTPTS,fps=15,settb=AVTB [t1v]; [c1a] atrim=start=0:end=19.97,asetpts=PTS-STARTPTS [t1a]; [c2v] trim=start=249.7900000000002:end=269.2200000000002,setpts=PTS-STARTPTS,fps=15,settb=AVTB [t2v]; [c2a] atrim=start=249.7900000000002:end=268.7200000000002,asetpts=PTS-STARTPTS [t2a]; [c3v] trim=start=0:end=15.45,setpts=PTS-STARTPTS,fps=15,settb=AVTB [t3v]; [c3a] atrim=start=0:end=15.45,asetpts=PTS-STARTPTS [t3a]; [t0v][t1v]xfade=transition=fade:duration=0.5:offset=21.531[vfade1];[vfade1][t2v]xfade=transition=fade:duration=0.5:offset=41.501[vfade2];[vfade2][t3v]xfade=transition=fade:duration=0.5:offset=60.431[outv];[t0a][t1a][t2a][t3a]concat=n=4:v=0:a=1[outa];