jit.qt.grab error
Hi all,
I'm very new to max / jitter and I'm running into a small error with the jit.grab object. When I send an 'open' message to the object I get an error that reads jit.qt.grab: could not create video channel -9405
and jit.qt.grab: error opening device for grab.
Has anyone else experienced this problem? I'm using the newest version of Max/MSP and a 2018 13inch Macbook Pro.
Any and all help is greatly appreciated, thank you!
have you changed the default video engine?
Yeah, I changed the default from regular Quick Time to Quick Time 7, but still no luck. I think it's an issue getting Quick Time to connect to Max at all.
I also tried following the instructions that you listed in another forum without any luck:
MAR 20 2014 | 11:53 AM
by default max uses the new QTKit drivers for jit.(qt).grab on 10.9 machines, as the builtin isight cameras no longer work with the old quicktime drivers.
the qtkit driver does not support the "settings" message.
if you want to try your camera with the old quicktime drivers, here's what you can try: 1. restart Max 2. new patcher 3. new message box with “; jit usealtgrab 0″ 4. lock patcher and click message box
make sure you do this *before* you add any jitter objects to your patch.
if you find that your camera works with the old drivers, you can make this the default by typing “; jit usealtgrab 0″ in a file named “jitter-config.txt”, located anywhere in the search path and it will be executed when Jitter loads.
it would be helpful for the community to know if this works for you, and what camera you are using.
If you think of anything else it may be, please let me know. Thanks!!
change it back to the default of "avf" and you should be good.
the info in the post is from prior to the release of max 7, and therefore no longer applicable.