concaterror

//partOnePath -> movie1.mp4
//partTwoPath -> movie2.mp4
//outputFileName -> "output.mp4"

String[] complexCommand = {"ffmpeg","-i", partOnePath, "-i", partTwoPath, "-filter_complex", "[0:0] [0:1] [1:0] [1:1] concat=n=2:v=1:a=1 [v] [a]","-map", "'[v]'", "-map", "'[a]'", outputFileName};