FFMPEG : Concatenation

change format if required

Often Adobe premiere exports in mpeg

set sourceFile=yogaIntro
set sourceFileFormat=mpeg
set targetFile=%sourceFile%WithLogo
ffmpeg -i %sourceFile%.%sourceFileFormat%  %targetFile%.mp4 -y

Perform concat

ffmpeg -y -i "yogaIntroWithLogo.mp4" -i "yogaOutroSilent.mp4"  -filter_complex "[0:v] [0:a] [1:v] [1:a]concat=n=2:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" -y concat.mp4