Many video capture devices have multiple physical inputs and some manufacturers use and input to set things like PAL/NTSC or colorspace or even resolution.  The only way to really figure it out is with the 'dialog' window.  It is kind of a pain to configure certain devices and some of the pix_videoDarwin code contains workarounds so I could do plug and play installations all over the world.

I thought I added this to a help file long ago in a Mac specific subpatch.  Maybe not.

On Mon, Feb 14, 2011 at 12:56 PM, Mathieu Bouchard <matju@artengine.ca> wrote:
On Mon, 14 Feb 2011, chris clepper wrote:

The messages are different on OSX because devices can and do have multiple inputs.  Selecting a 'device' only is not enough information to tell the driver of something like a Blackmagic Intensity card so you need to add an 'input' message as well.

ah, an "input" method is indeed defined in pix_videoDarwin.cpp, but it is not mentioned in pix_video-help.pd (of gem 92), and I have no hint that something is to be done.

This behaviour of "device" is also contrary to [pix_video]'s construction-time behaviour of "pick the first video stream we can find".

I'm all in favour of a more manual camera control (so that the user chooses whether to open a camera at all), I'm just pointing out that "device"/"input" doesn't seem to be very consistent with [pix_video]'s defaults.

BTW, which devices have several inputs on them, in a way that counts as "input" here (and not multiple devices) ? I'm curious.


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