[MPlayer-users] OT maybe, Struggling to conactenate MP4 files

[Tom Evans]

On Wed, Jan 26, 2011 at 11:17 AM, Nick Batt <nick at sonicstate.com> wrote:
> Hi, first of all - helloI'm trying to streamline a workflow and ad a top and
> tail to my MP4 files.
> However using MP4Box, which appears to be the only game in town, I get new
> tracks added no matter what sort of switches I add to -add or -cat.
> Result always appears to be both video and audio streams but on separate
> tracks.
>
> Cant seem to figure out any way to acheive this. Both files are h264 25fps
> 640x360 AAC 48000 created from the same transcoding process.
>
> I'm hoping to be able to automate this process, but fell at the first.
>
> Running this on an EC2 instance Centos 5.X
>
> Many thanks

I'd use ffmpeg (its an FAQ: http://www.ffmpeg.org/faq.html#TOC27 ).
You want the complex example, joining two flv files with named pipes.

Cheers

Tom