[FFmpeg-user] Combining 4 videos in 1 video in raster.

[Wladi]

I would like some help, poiters, examples for combining 4 videos into 1
video.

I have 4 FullHD movies (1920x1080) and want to have 1 movie with the
resolution of 3840x2160.


This code will make a canvas with the right resolution bit only the upper
part, how can I add the lower part (left bottom / right bottom).

ffmpeg.exe -i VideoLeftTop.MP4 -ss 00:00:00 -t 00:00:03 -vf "[in]
scale=iw:ih, pad=2*iw:ih*2 [left]; movie=VideoRightTop.MP4, scale=iw:ih
[right];  [left][right] overlay=main_w/2:0[out]" -b:v 768k VideoFull.mp4


examples on
http://ffmpeg-users.933282.n4.nabble.com/stitching-together-videos-with-Libavfilter-td2538492.html
are not working :-(



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