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Camera plugins was Re: Video Media in Squeak

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dcorking

Camera plugins was Re: Video Media in Squeak

Bert Freudenberg wrote:

> There is VideoFlow which is pretty cool (scroll down to the screenshots):
> http://wiki.squeak.org/squeak/2411
> If it's just for playback, the only cross-plattform option right now is MPEG
> for which we have a general plugin. For Mac and Windows, the Sophie folks
> made nice players via FFI, based on QuickTime I think. On Linux there is a
> GStreamer plugin.
> For camera access, there is Scratch's x-platform CameraPlugin. Etoys on
> Linux uses a V4L plugin. For Windows there is a "DShowVideoDecoderPlugin".

I think most things that Bert mentions are open source, apart perhaps
from the Scratch plugin. As it is cross-platform, the Scratch
CameraPlugin sounds great for future versions of Squeak or Etoys,
except that it may possibly be released under the Scratch or Scratch
source licenses, which forbid commercial use. Anyone know if that is
true?
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Derek O'Connell-2

Re: Camera plugins was Re: Video Media in Squeak

On 22/04/10 14:21, David Corking wrote:

> Bert Freudenberg wrote:
>
>> There is VideoFlow which is pretty cool (scroll down to the screenshots):
>> http://wiki.squeak.org/squeak/2411
>> If it's just for playback, the only cross-plattform option right now is MPEG
>> for which we have a general plugin. For Mac and Windows, the Sophie folks
>> made nice players via FFI, based on QuickTime I think. On Linux there is a
>> GStreamer plugin.
>> For camera access, there is Scratch's x-platform CameraPlugin. Etoys on
>> Linux uses a V4L plugin. For Windows there is a "DShowVideoDecoderPlugin".
>
> I think most things that Bert mentions are open source, apart perhaps
> from the Scratch plugin. As it is cross-platform, the Scratch
> CameraPlugin sounds great for future versions of Squeak or Etoys,
> except that it may possibly be released under the Scratch or Scratch
> source licenses, which forbid commercial use. Anyone know if that is
> true?
> _______________________________________________
> Beginners mailing list
> [hidden email]
> http://lists.squeakfoundation.org/mailman/listinfo/beginners

Both the "Scratch" plugin and the "Camera" plugin are open source and
can be used in commercial app's AFAIK. You can get the source from:

http://info.scratch.mit.edu/Source_Code

Hold your breath and the Scratch Camera plugin may be hooked into Squeak
and Etoys in the next day or so ;-)
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Bert Freudenberg

Re: Camera plugins was Re: Video Media in Squeak

In reply to this post by dcorking

On 22.04.2010, at 15:21, David Corking wrote:

>
> Bert Freudenberg wrote:
>
>> There is VideoFlow which is pretty cool (scroll down to the screenshots):
>> http://wiki.squeak.org/squeak/2411
>> If it's just for playback, the only cross-plattform option right now is MPEG
>> for which we have a general plugin. For Mac and Windows, the Sophie folks
>> made nice players via FFI, based on QuickTime I think. On Linux there is a
>> GStreamer plugin.
>> For camera access, there is Scratch's x-platform CameraPlugin. Etoys on
>> Linux uses a V4L plugin. For Windows there is a "DShowVideoDecoderPlugin".
>
> I think most things that Bert mentions are open source, apart perhaps
> from the Scratch plugin. As it is cross-platform, the Scratch
> CameraPlugin sounds great for future versions of Squeak or Etoys,
> except that it may possibly be released under the Scratch or Scratch
> source licenses, which forbid commercial use. Anyone know if that is
> true?

Now this is a bit off-topic for the newbies list, but the Scratch folks are interested in having their plugins in the main Squeak VM, so they do not have to package and maintain them themselves for ever. E.g. for the ScratchPlugin we have a letter to that extent:
http://tracker.squeakland.org/browse/SQ-354
It has not happened yet mainly because nobody made it their top-priority to get these plugins into the VM.

It would help of course if the Scratch plugins were simply released under the MIT license, to remove all doubt.

- Bert -

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dcorking

Re: Camera plugins was Re: Video Media in Squeak

In reply to this post by Derek O'Connell-2

Derek O'Connell wrote:

> Both the "Scratch" plugin and the "Camera" plugin are open source and can be
> used in commercial app's AFAIK. You can get the source from:
>
> http://info.scratch.mit.edu/Source_Code

I think we have crossed wires between yours and my understanding of
the phrase "open source". That page says: "The Scratch source code
license allows you to distribute derivative works based on the Scratch
source code for non-commercial uses subject to the following
restrictions ..."

The Squeak license, and the Open Source definition are much more
liberal than that. For example, they allow a company or foundation to
pre-load software on a device and sell it. But as Bert said, we have
John Maloney's letter that opens up the plugins:
http://tracker.squeakland.org/secure/attachment/13870/ScratchPlugin-Permission.txt
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