Side-by-side dual input

[smalenfant]

I'm looking into a product that can take 2 high definition input but displays only half of input 1 on left side and half of input 2 on right side.

Would be nice if this could be a PC application (playing 2 video file) or could be taking input from 2 computers/digital STBs.

Any ideas anyone?

[poisondeathray]

If you already have 2 displays (monitors), why not move them beside each other?

You can playback a split-screen on 1 monitor from 2 different video files on the same computer with an avisynth script

[smalenfant]

I want to have the split screen because I want to compare quality and I believe that's the best way to do it. I'll try up avisynth.

Thanks.

[jagabo]

Calculate "half" the width then:

left=DirectShowSource("file1.ext").Crop(0, 0, -half, -0)
right=DirectShowSource("file1.ext").Crop(half, 0, -0, -0)
StackHorizontal(left, right)

You can use AviSource(), Mpeg2Source(), AvcSource() or whatever is appropriate instead of DirectShowSource().

Or fully automated:

left=DirectShowSource("file1.ext")
right=DirectShowSource("file2.ext")

half = Width(left) / 2

StackHorizontal(Crop(left, 0, 0, -half, -0), Crop(right, half, 0, -0, -0))

The two videos must be the same height. If they're different widths the split will not be equal. And note that some colorspaces can't be cropped by odd values. For example, YV12 and YUY2 will have to be Mod4 for the above script to work.

[smalenfant]

Wow, that sounds like it can work. Let me try this out!

[smalenfant]

Hmmm.. works in Windows Media Player classic... But not "creating a proxy" for avidemux... My sources are MPEG 2 transport stream. any ideas? Is that what you mentionned about Mod4?

AvsSocket Proxy, derivated from avs2yuv by Loren Merritt
Loading Avisynth.dll
Avisynth.dll loaded
Env created
Importing..
10000000 / 166833
Only yv12!
Err: 14007

> Exit Code: -1

[smalenfant]

Wonderful! DGIndex and it worked like magic. Thanks all!