I've looked into this. You can send images into IMServices but not
out. The video feed is one way according to IMVideoDataSource.
Limiting but somewhat understandable.
As for the bug in screen capture (this is bug # 7487784 if anyone in
Apple is paying attention), you could change the line in the screen
capture source I provide in the download where the output image is
provided. replace the device context for [context colorspace] and it
ought to work for your Queue, but the color of captured images may be
off. Perhaps I can add this as an option to the plugin to get around
this issue.
Good luck!
On Feb 18, 2010, at 3:02 AM, David Langford wrote:
So I tried out the quicktime broadcaster, just using quicktime
player to pick it up on the other computer. However there was about
3 seconds of lag, which is too slow for what I need.
I also tried the QuickTime RTSP Server... to an extent. But by the
time i downloaded it, installed it and finished my second quiz
trying to start it, I decided that it was a little too heavy for
what I needed (it isn't really that much of an issue at the moment)
and it would most likely have the 3 second lag as well - assuming
its using the same technology as the Quicktime Broadcaster.
For a third attempt, I used video skype (which had the video
streaming instantly, even though it was going through wireless to
the net, back to wireless then to my other mac. I thought this was
strange since the Quicktime Broadcaster didn't have to go to the net
but had the delay). Then used Vade's Screen Grabber plugin to grab
the Skype window, however the image from that can't be used in a
Queue patch - talked to him about it, this is a known bug with
Quartz Composer. So that didn't work for me (it will though, for
people that don't need to use the Queue Patch with it).
Then I came across this video http://www.udart.dk/2009/07/30/the-5-video-mixer-how-to-do-a-dv-screen-cast-through-firewire/
. Which seems to do what I want, but I don't have a firewire cable :,
( so i'll have to order one off the net and see how it goes.
Although Udart also says that...
- There is a visible delay as with other DV sources. This is because
DV is a compressed format and so it also takes some CPU resources on
both machines
So i'm thinking that it might not be good enough anyway.
Then I hit my limit of how much time I wanted to spend on this and
stopped looking. This isn't really that much of an issue for me at
the moment, so i'll willing to put it aside.
If it does become a huge issue, I might be able to write a plugin
that uses the IMService class to get the image from iChat (http://developer.apple.com/leopard/overview/imframework.html
). Although I have no idea if that is possible, if I have the skill
to do it, or if I will run into the same bug that Vade ran into.
Oh well, such is life.
Thanks for the help everyone.
Cheers
Lango
On Sun, Feb 14, 2010 at 2:46 PM, David Langford
<[email protected]> wrote:
Ahh, this looks along the lines of what I want.
Thanks Rob and Peter, i'll try it out during the week and let
everyone know how it goes.
Cheers
Lango
On Sun, Feb 14, 2010 at 1:28 PM, Rob Duarte <[email protected]> wrote:
nice solution. Also, Apple's Broadcaster is much simpler than the
full blown RTSP server.. http://www.apple.com/quicktime/broadcaster/
On Feb 13, 2010, at 1:29 PM, Peter Boocock wrote:
q: What is the easiest way to get a video input on say, my laptop
into a quartz
composer app running on my iMac?
a: place live video input into RTSP stream deliver via QuickTime
RTSP Server and a network connection. RTSP url through Movie Loader
set to Asynchronous Mode into a render patch in QC. Jobs a goodun.
:-)
Apple - QuickTime - Streaming Server
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected]
)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/rahji%40rahji.com
This email sent to [email protected]
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected]
)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/langford.d%40gmail.com
This email sent to [email protected]
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected]
)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/doktorp%40mac.com
This email sent to [email protected]
_______________________________________________
Do not post admin requests to the list. They will be ignored.
Quartzcomposer-dev mailing list ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com
This email sent to [email protected]
