The VideoLAN Forums

Posted: **24 Oct 2015 14:05**

Hi vlc users,

I just want to share how to make a simple vlc mosaic with 6 ip cameras with a vlm file.

This is based in this topic :

https://forum.videolan.org/viewtopic.php?f=11&t=93165

First you have to make a vlm file, just create a .txt file and change the extention to .vlm.

For my exemple the vlm file will be call "mosaicx6.vlm"

In this file paste this lines :

Code: Select all

##################################
## HTTP interface mosaic wizard ##
##################################

# Comment the following line if you don't want to reset your VLM configuration
del all

# Background options
new   bg broadcast enabled
setup bg input     "C:\black.jpg"
setup bg option image-duration=-1
setup bg output #transcode{sfilter=mosaic{width=1920,height=960,cols=3,rows=2,position=1,order="1,2,3,4,5,6",keep-aspect-ratio=enabled,mosaic-align=5},vcodec=mp4v,vb=2000,fps=15}:duplicate{dst=display}

# Input options
new   1 broadcast enabled
setup 1 input http://id:pass@ip:port/video.cgi
setup 1 option dshow-fps=15
setup 1 option dshow-size="640x480"
setup 1 output #duplicate{dst=mosaic-bridge{id=1,width=640,height=480},select=video,dst=bridge-out{id=0}}

new   2 broadcast enabled
setup 2 input http://id:pass@ip:port/video.cgi
setup 2 option dshow-fps=15
setup 2 option dshow-size="640x480"
setup 2 output #duplicate{dst=mosaic-bridge{id=2,width=640,height=480},select=video,dst=bridge-out{id=1}}

new   3 broadcast enabled
setup 3 input http://id:pass@ip:port/video.cgi
setup 3 option dshow-fps=15
setup 3 option dshow-size="640x480"
setup 3 output #duplicate{dst=mosaic-bridge{id=3,width=640,height=480},select=video,dst=bridge-out{id=2}}

new   4 broadcast enabled
setup 4 input http://id:pass@ip:port/video.cgi
setup 4 option dshow-fps=15
setup 4 option dshow-size="640x480"
setup 4 output #duplicate{dst=mosaic-bridge{id=4,width=640,height=480},select=video,dst=bridge-out{id=3}}

new   5 broadcast enabled
setup 5 input http://id:pass@ip:port/video.cgi
setup 5 option dshow-fps=15
setup 5 option dshow-size="640x480"
setup 5 output #duplicate{dst=mosaic-bridge{id=5,width=640,height=480},select=video,dst=bridge-out{id=4}}

new   6 broadcast enabled
setup 6 input http://id:pass@ip:port/video.cgi
setup 6 option dshow-fps=15
setup 6 option dshow-size="640x480"
setup 6 output #duplicate{dst=mosaic-bridge{id=6,width=640,height=480},select=video,dst=bridge-out{id=5}}

# Launch everything
control bg play
control 1 play
control 2 play
control 3 play
control 4 play
control 5 play
control 6 play

# end of mosaic batch

If the video.cgi is not working try videostream.cgi or videostream.asf

I recommand to put this file in your vlc folder.

For me this is "C:\Program Files\VideoLAN\VLC"

And create a vlc shortcut, then add to the target the line :
" --vlm-conf mosaicx6.vlm"

Start with a space and without the quote.

it will be like :
"C:\Program Files\VideoLAN\VLC\vlc.exe" --vlm-conf mosaicx6.vlm

The mosaic background ("C:\black.jpg") will be a black image of 1920x960

Sometimes i've got some blinking cameras sometimes i don't, maybe there is a way to fixe it...

Posted: **05 Mar 2017 17:23**

hello, thaks for sharing the script it works good with files didn't try it yet with streams but i have good hope that it will work.
I had some blinking videos too i corrected it by adding the keep-picture=1 parameter:

Code: Select all

setup bg output #transcode{sfilter=mosaic{width=1920,height=960,cols=3,rows=2,position=1,order="1,2,3,4,5,6",keep-aspect-ratio=enabled,keep-picture=1,mosaic-align=5},vcodec=mp4v,vb=2000,fps=5}:duplicate{dst=display}

Posted: **18 Oct 2017 13:34**

hello, thaks for sharing the script it works good with files didn't try it yet with streams but i have good hope that it will work.
I had some blinking videos too i corrected it by adding the keep-picture=1 parameter:
Code: Select all
setup bg output #transcode{sfilter=mosaic{width=1920,height=960,cols=3,rows=2,position=1,order="1,2,3,4,5,6",keep-aspect-ratio=enabled,keep-picture=1,mosaic-align=5},vcodec=mp4v,vb=2000,fps=5}:duplicate{dst=display}

Thank you so much! This fixed my problems too

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