[PD] [pix_video] multiple webcams at once on macbook

Jonghyun Kim agitato816 at gmail.com
Tue May 3 23:43:25 CEST 2016

I have two webcams, internal and external. [pix_video] detects only one
webcam, and it grabs always external one, but very very occasionally
the internal one.(I can't choose it) Using multiple webcams works on Linux,
but not on macbook. Any idea?


Macbook Pro mid 2010 15”
Mac OS X 10.9.5
Pd 0.46-7
Gem 0.93.3 (compiled: Jan 24 2013)
Macbook Internal Webcam, Microsoft HD-3000(USB)


deken-plugin.tcl (Pd externals search) in
/Users/akntk/Library/Pd/deken-plugin loaded.
Platform detected: Darwin-x86_64-32bit
Image loading support: QT SGI
[pix_video]: backend #0='Darwin' : darwin dv iidc analog
[pix_video]: backend #0='Darwin' : darwin dv iidc analog
SGSetChannelDevice returned error 704
could not set SG Rect
SGSetChannelDevice returned error 704
SGSetChannelDeviceInput returned error 709
could not set SG Rect
GemWinCreateMac: newDspyCnt 2
GemWinCreateMac: display 0 width 1680 height 1050 origin.x 0 origin.y 0
GemWinCreateMac: display 1 width 800 height 600 origin.x 1680 origin.y 0
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