[FFmpeg-user] Scroll Video left to right and back

[johnsmithbin]

I have a video (A) placed on the background video (B). I want video A to
rotate around video B or left to right and back right to left. I tried code:
ffmpeg -y -i video1.mp4 -i video2.mp4 -i "Filter_HD.png" -filter_complex
"[0:v]scale=840:460 [v1]; [2:v]scale=840:460 [v2]; [v1][v2]overlay=0:0 [v3];
[1:v]boxblur=9:8,scale=1280:720 [v4];
[v4][v3]overlay=enable='between(t,1,8*60)':x='if(lte(-w+(t)*50,w/11),-w+(t)*50,w/2)':y=100[out],setdar=16/9"
-map "[out]" -threads 0 -preset superfast out.mp4

But it moves and does not repeat. Please help me.
<http://www.ffmpeg-archive.org/file/t378165/movie.jpg> 



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