# VLM configuration file for QRCode overlay
# Ben Ward, 2009 (http://badgertrack.com)
# Suitable for Linux, can be made to work with Windows with some tweaks

# clear previous config
del all

# Setup input 'bg' for background image 
new bg broadcast enabled
# Receive the input from Video4Linux2 Device /dev/video0 (my crappy webcam)
setup bg input     "v4l2:///dev/video0 "
# enable the mosaic
setup bg option    sub-filter=mosaic
# this bit is complex.  I suggest not using mpeg2-ts format like this as it seems to do things sloppily (ie. no timecode).
# you may also be able to capture audio here for annotation. I think this config is capturing fake://qrcode.png's audio. ie. none.
setup bg output    #bridge-in{offset=100}:transcode{vcodec=mp2v,vb=768,scale=1,acodec=mpga,ab=128,sfilter=mosaic}:duplicate{dst=display,dst=std{access=file,mux=ts,dst=myfile.mpg}}

# Configure some mosaic options. Some are just the defaults explicitly defined.
setup bg option mosaic-alpha=255
setup bg option mosaic-align=5
setup bg option mosaic-xoffset=0
setup bg option mosaic-yoffset=0
setup bg option mosaic-vborder=5
setup bg option mosaic-hborder=10
setup bg option mosaic-position=1
setup bg option mosaic-rows=2
setup bg option mosaic-cols=2
# choose the order in which to display mosaic inputs
setup bg option mosaic-order=overlayimage,_,_,_
setup bg option mosaic-delay=0
setup bg option mosaic-keep-picture
setup bg option mosaic-keep-aspect-ratio

# Input options
new   overlayimage broadcast enabled
# create a fake stream with our qrcode png file as the source, reloaded once a second
setup overlayimage input     "fake://" option "fake-file=./qrcode.png" option "fake-file-reload=1"
# now output this to the mosaic bridge
setup overlayimage output #duplicate{dst=mosaic-bridge{id=overlayimage,width=64,height=64,chroma=YUVA},select=video,dst=bridge-out{id=0},select=audio}

# Launch everything
control bg play
control overlayimage play