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Re: VideoConference: save photo and video Started by ShodawN at 07-22-2008 11:03. Topic has 5 replies. LEAD Support Fo... » Developer » Multimedia » Re: VideoConference: save photo and video

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07-22-2008, 11:03 ShodawN Joined on 07-15-2008 Posts 11 VideoConference: save photo and video Hello, I'm developing a videoconference application and i want to save (photo and video) on server and cliente sides. I use ltmmCaptureCtrl to capture and send over the network.    · Save video: ltmmConvertCtrl connected to ltmmCaptureCtrl.    · Save photo: using callback. And I use ltmmPlayCtrl to play data receiced over the network:    · Save video: Retrieve lmNetDmx and set outputfilename property.    · Save photo: using callback. The problem of using callbacks is the performance. The callback lacks booth sending and receiving data. How can i take photo and video when i'm on a videoconference without connection lost? Thank you    Report

07-22-2008, 11:18 jigar Joined on 08-22-2007 Posts 480 Re: VideoConference: save photo and video You can use the SaveStillDIB() or the SaveStillBitmap() method.  When are you taking a photo?  Is it on certain intervals or when the user presses a button? LEADTOOLS Technical Support    Report

07-22-2008, 17:24 ShodawN Joined on 07-15-2008 Posts 11 Re: VideoConference: save photo and video Hello, I had two questions ;P === Snapshot: When i'm receiving or playing a video, i can use SaveStillDIB. But when i'm sending or in preview mode i can't use it (bat state exception). If i use a callback, when i'm creating a video file (avi) my cpu raise to 100% and get frame lost. How can i take a snapshot in preview mode? and in capture mode? === === Create avi : ltmmCaptureCtrl State:    · Preview: I use the TargetFile property.    · Capture (Sending over network): I use new ltmmConvertCtrl to save the avi file ltmmPlayCtrl:    · Play (playing avi or receiving over network): I get the lmNetDmx object of the ltmmPlayCtrl and set the outputfilename property to save the avi file. I'm doing rigth? there is another way to make it? === Thank you    Report

07-23-2008, 17:39 jigar Joined on 08-22-2007 Posts 480 Re: VideoConference: save photo and video While capturing, you have to switch to STILL mode, which means you have to stop and start the capture.  While in preview mode, try changning the PreviewTap property to ltmmCapture_PreviewTap_Source. LEADTOOLS Technical Support    Report

07-28-2008, 6:02 ShodawN Joined on 07-15-2008 Posts 11 Re: VideoConference: save photo and video Hello, I try to se the PreviewTap property to ltmmCapture_PreviewTap_Source, but i have a state exception when i call to SaveStillDIB method. When i'm capturing an avi file, i can stop and star capture in still mode to take the photo, but i need only one avi file. Is there a way to take a photo when i'm creating one avi file? Thank you    Report

08-04-2008, 11:13 jigar Joined on 08-22-2007 Posts 480 Re: VideoConference: save photo and video In the capture control you will have to use the callback if you can't stop and start it.  So are you keeping the callback filter hooked to the control all the time or are you only hooking it when you need to take a snapshot? From a couple posts back you mention using ltmmConvertCtrl.  Are you hooking the callback to that?  For the ltmmConvertCtrl you can just call the SaveStill methods. LEADTOOLS Technical Support    Report

LEAD Support Fo... » Developer » Multimedia » Re: VideoConference: save photo and video

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