[0:v] scale=1920:1080:force_original_aspect_ratio=1,pad=1920:1080:(ow-iw)/2:(oh-ih)/2:color=white,setsar=1:1,fps=30[i_video];color=c=black:s=1920x1080:r=30:d=0.5[i_black];[i_video][i_black]concat=n=2:v=1:a=0,settb=AVTB [t0v]; [0:a]asetpts=PTS-STARTPTS[t0a]; [1:v]split=2[c0v][c1v];[1:a]asplit=2[c0a][c1a];[c0v] trim=start=0:end=6.08,setpts=PTS-STARTPTS,setsar=1:1,fps=30,settb=AVTB [t1v]; [c0a] atrim=start=0:end=6.08,asetpts=PTS-STARTPTS [t1a]; [c1v] trim=start=7.439999999999827:end=87.26999999999983,setpts=PTS-STARTPTS,setsar=1:1,fps=30,settb=AVTB [t2v]; [c1a] atrim=start=7.439999999999827:end=86.76999999999983,asetpts=PTS-STARTPTS [t2a]; [2:v] scale=1920:1080:force_original_aspect_ratio=1,pad=1920:1080:(ow-iw)/2:(oh-ih)/2:color=white,setsar=1:1,fps=30,settb=AVTB [t3v]; [2:a] asetpts=PTS-STARTPTS [t3a]; [t0v][t1v]xfade=transition=fade:duration=0.5:offset=4.066667[vfade1];[vfade1][t2v]concat=n=2:v=1:a=0[vfade2]; [vfade2][t3v]xfade=transition=fade:duration=0.5:offset=89.47666699999999[outv];[3:a]atrim=start=0:end=90.405397,asetpts=PTS-STARTPTS[am],[am][4:a]concat=n=2:v=0:a=1[bgAudio];[bgAudio]asplit=2[bgAudio0][bgAudio1];[t0a][bgAudio0]amix=duration=shortest[outaa0];[t3a][bgAudio1]amix=duration=shortest[outaa1];[outaa0][t1a][t2a][outaa1]concat=n=4:v=0:a=1[outaa];