What tool in Linux can I use to merge multiple flv files ? Files are already in order, just put them altogether seamlessly
I didn't test the following yet, so see it just as some hints.
You could use
ffmpeg. From the manual
* You can put many streams of the same type in the output: ffmpeg -i test1.avi -i test2.avi -vcodec copy -acodec copy -vcodec copy -acodec copy test12.avi -newvideo -newaudio In addition to the first video and audio streams, the resulting output file test12.avi will contain the second video and the second audio stream found in the input streams list. The "-newvideo", "-newaudio" and "-newsubtitle" options have to be specified immediately after the name of the output file to which you want to add them.
You can also use
mencoder for example:
mencoder -forceidx -ovc copy -oac pcm -o output.flv input1.flv input2.flv
Another option is maybe
You could also try
You can check this FAQ from the FFmpeg website.
It seems to be a matter of using the "concat" filter or the "concat" protocol. I never tried the former, so I can't help you on that one, and I tried the latter only with MPEG files, so perhaps a few adjustments are needed when using FLV files.