Hello, on my iMac (10.6.8) the sample composition by Chris gives me a spinning beach ball. I sampled QuartzComposer with the Activity Monitor. This shows me, that QuickTime is doing a "Preroll". Maybe the preroll-stuff is depending on the main thread to run and so QC gets deadlocked by QT. Anyways the movie URL runs with QuickTime Player with no problems.
Achim Breidenbach Boinx Software Ltd. On 10.01.2012, at 15:25, Charlie Francis wrote: > Just tested on my Laptop (10.6.8, 8GB, 2.4GHz i5, GeForce GT 330M) and a > brand new Mac Pro (10.7.2, 12GB RAM, 2 x 2.66GHz Quad, ATI Radeo HD 5770 1GB). > > Neither of which could open your composition without crashing, or didn't > crash when I copy pasted the RTSP url into the Movie Importer (Asynchronous > Enabled). After clearing out all of my plugins and restarting Quartz it still > wouldn't work. Strange > > I can open the link using Quicktime on both machines. > > Charlie > > On 10 January 2012 13:50, Chris Wood <[email protected]> wrote: > It's opening and streaming fine here. Can you view it in quicktime? Maybe try > clearing out all your plugins to see if that helps? > > I'm on 10.7.2, with a recent iMac here. I've attached the simple comp that > works for me. > > Chris > > > On 10 January 2012 13:29, Charlie Francis <[email protected]> wrote: > Hi Again! > > I found this as a test example for Wowza and RTSP > http://www.wowza.com/html/mobile.html. Could anyone else please try and open > this with the Movie Importer in Quartz, every time I do it I get the spinning > wheel of death then QC crashes :/ > > Regards, > Charlie > > > On 6 January 2012 16:19, Charlie Francis <[email protected]> wrote: > Thanks for the response Chris, > > I've got Darwin Streaming Server working with Quicktime Broadcaster at the > moment, and I can view the stream in Quicktime using the rtsp url > rtsp://[machine name].local/mystream.sdp. But when I try to open that using > the Movie Importer in Quartz it just freezes and then crashes after a while. > I have set the Movie Importer to Asynchronous to allow for streaming content, > but it's still not loading the video. > > In the future I want to use Wowza to encode the stream, but that's not as > important as getting it working at all! > > Regards, > Charlie > > > On 6 January 2012 11:22, Chris Wood <[email protected]> wrote: > I've used an external webcam before for a project, but it was a > network camera that supported video streaming. I found it easiest to > get it working in quicktime first - if you can get the stream playing > in quicktime it should work in QC too, and quicktime removes the > possibility that something else is wrong in your composition and you > waste days thinking it's the camera. > > What you have to do is get the UNC path for the video stream. For my > camera it was rtsp://(ip address)/video.mp4 In quicktime you can test > if the stream is compatible by going file->open location and adding > the path there. > > Then in QC, you just feed that path to the Movie Importer. > > It'll show the quicktime logo while it connects and then start > streaming. If you're recording, you'll want to remove the logo from > the recorded output, and you'll want to detect + fix connection > interruptions - this gave me huge headaches! The quicktime logo is in > low resolution, so it's likely the output resolution will change when > the actual streaming starts. That's easy to detect and handle. > > If there's a connection interruption (likely with a network camera!) > then in some cases it'll automatically handle it, in others it'll just > continue outputting the last frame forever. I handled this by using a > 2-member queue and a core image filter to get the difference between > the current and last frames (the filter is something like "output = > abs(currentFrame - lastFrame)"). I then used the Area Maximum patch to > get the highest value, and an Image Pixel to get the actual value. A > video stream will always have a non-zero value, so if you detect a > zero you can reset the movie importer (it has a Reset Signal that will > restart the stream). > > Hope that helps a bit! > > Chris > > > On 6 January 2012 11:02, Charlie Francis <[email protected]> wrote: > > Hi guys, > > > > I was just wondering if it's possible to be able to pull in an external > > webcam stream and display it through quartz. I have tried to use Quicktime > > Broadcaster, but I keep getting a connection error whenever I try and start > > broadcasting. Windows users need to be able to broadcast to it as well. > > > > I've had a look through Kineme's forum but can't find anything helping me > > display the stream. > > > > Thanks! > > > > _______________________________________________ > > 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/psonice%40gmail.com > > > > This email sent to [email protected] > > > > > > -- > Charlie Francis > Senior Engineer > > Cellcast UK Ltd > 150 Great Portland Street > London > W1W 6QD > UK > > T. +44 (0)203 376 9420 > M. +44 (0)7988 509 614 > E. [email protected] > > www.cellcast.tv > > The Cellcast Group is a leader in the provision of participation television > programming and interactive mobile content in the rapidly growing > multi-platform digital entertainment sector. > > Our services enable broadcasters, content developers, media ventures, 3G > services and mobile networks to participate in the accelerating convergence > of Television, IT and Telecommunications. > > Company Registration No. 04327957 (England and Wales) > > This message is confidential. It may also contain information that is > privileged and not authorised to be disclosed. If you are not the intended > recipient, be advised that you have received this email in error and that any > use, dissemination, forwarding, printing or copying of this email is strictly > prohibited. If you have received it by mistake please notify the sender > immediately and delete it from your system. > > > > > > > -- > Charlie Francis > Senior Engineer > > Cellcast UK Ltd > 150 Great Portland Street > London > W1W 6QD > UK > > T. +44 (0)203 376 9420 > M. +44 (0)7988 509 614 > E. [email protected] > > www.cellcast.tv > > The Cellcast Group is a leader in the provision of participation television > programming and interactive mobile content in the rapidly growing > multi-platform digital entertainment sector. > > Our services enable broadcasters, content developers, media ventures, 3G > services and mobile networks to participate in the accelerating convergence > of Television, IT and Telecommunications. > > Company Registration No. 04327957 (England and Wales) > > This message is confidential. It may also contain information that is > privileged and not authorised to be disclosed. If you are not the intended > recipient, be advised that you have received this email in error and that any > use, dissemination, forwarding, printing or copying of this email is strictly > prohibited. If you have received it by mistake please notify the sender > immediately and delete it from your system. > > > _______________________________________________ > 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/achim%40boinx.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]
