[MEncoder-users] Cojoin two videos into one.

[Lobster]

On 11/05/2011 11:23 a.m., Ivan Sy, Jr. wrote:
> Hi everyone,
>
> this is my first post and I hope there's a magic behind this.
>
> i have a script that uses pwcview to pipe the video output to mencoder. That
> worked for me just fine.
> However, I am getting another camera and i'll use the same script using the
> new camera as the video device also piping the output to mencoder.
>
> This results to two video files. There's no problem with that.
>
> But, Is there a way that I can combine both videos into one?
>
> What im hoping to achieve is not to append VideoB to VideoA, but to
> have both on one video.
>
> On the left side will be feed from CameraA and the right side is feed from
> CameraB and saved in one file. Its like a split screen video of some sort -
> and if feed from any of the camera is shut, then it will just have a black
> blank screen on its side.

This sounds like some thing that MEncoder currently cant do, however 
ffmpeg may be
able to do what you want with it's filters, (I know I can make it do a 
quad split video
from multiple files), But you may need to use named pipes to do it.