I have three flv files around 30 Mb each. I joined them together using mencoder on Linux with
mencoder -forceidx -ovc copy -oac pcm -o output.flv input1.flv input2.flv input3.flv
The video codec is H.264 and the audio is MPEG-4 AAC.
The resulting file is 390Mb.
Is there a way to join flv files on Linux without this file size increase?