[MacRuby-devel] MacRuby challenge

[Matt Aimonetti]

Confirmed to work on my recent MacBook Pro.

- Matt

On Tue, Dec 20, 2011 at 11:19 AM, Alan Skipp <al_skipp at fastmail.fm> wrote:

> The version below supports 640x480 and 1280x720 resolutions.
>
> https://gist.github.com/1501766
>
> I've also added support for multiple live video Santas.
> I'm not keen on my use of class variables to store images, but it was the
> only way I could think of to prevent repeatedly downloading the same image.
>
> Al
>
>
>
>
> On 20 Dec 2011, at 13:53, Jordan K. Hubbard wrote:
>
> Yeah, I figured as much and was able to fix it by making that change right
> after reporting the bug, but shouldn't we be able to some how make this
> camera resolution independent?
>
> I'm no expert on the AvCapture class, but AVCaptureSessionPresetHigh is
> another preset which at least does not hard-code the resolution of the
> camera, leaving as the sole exercise to the reader the size of the frame.
>  I'm not sure how to query that bit of info, and on the MacBook Air the
> 720p resolution results in the same incorrect offset for mustache, glasses
> and hat - only 640x480 delivers the correct results there.  Clearly, we
> haven't quite made this hardware independent yet, but we're getting closer
> I think!
>
> - Jordan
>
> P.S. Kudos to Matt for posting such an interesting and amusing challenge!
>  I've already learned far more about the AVCaptureSession class than I
> would have ever been motivated to learn otherwise, and I work for the
> company! :)
>
> On Dec 20, 2011, at 2:24 PM, Paul Vinieratos wrote:
>
> oh.. I changed the preset. replace all 1280 with 640 and all 720 with 480
> and check again.
>
> On 20 Δεκ 2011, at 15:20, "Jordan K. Hubbard" <jkh at apple.com> wrote:
>
>
> On Dec 20, 2011, at 11:34 AM, Pavlos Vinieratos wrote:
>
> https://gist.github.com/1501117
> how is that? :)
>
>
> Now broken on the MacBook Air. :-)
>
> 2011-12-20 14:19:52.115 macruby[4131:60b] *** Can't add
> <AVCaptureDeviceInput: 0x401336a00 [FaceTime Camera (Built-in)]> because
> the device does not support AVCaptureSessionPreset1280x720.  Use
> -[AVCaptureDevice supportsAVCaptureSessionPreset:].
>
> - Jordan
>
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