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kirill578/time lapse from multiple files

Created June 17, 2018 22:36
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time lapse from multiple files
ffmpeg -i 1.MP4 -i 2.MP4 -filter_complex "[0:v]setpts=0.25*PTS[v0];[0:a]atempo=2.0,atempo=2.0[a0];[1:v]setpts=0.25*PTS[v1];[1:a]atempo=2.0,atempo=2.0[a1];[v0] [a0] [v1] [a1] concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output.mp4
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