Unimage Flicker problem

[docjones]

Hi

 

I'm loading a secuence of images on unimage (from a camera ip) , but a molest flicker is produced when loading the image. tested with iexplorer 9, and firefox.

 

in my uniapplication, i have a unitimer (interval=100), that get jpg frame from a remote camera ip, and load it on a unimage, but a molest flicker produced.

same problem using UniImage1.Picture.Assign(JpeGImg) or using uniImage1.url=xxx.

 

¿ any sugestion to remove the molest image flicker ?.

//my code.
Procedure TFramePreviewCore.GetFrame2; 
var url:string;
Begin
   URL:='http://localhost:'+IntToStr(RemoteHttpPort)+'/image.cgi'+'?random='+inttostr(Random(200000));
   UniImage1.Url:=url;
End;

procedure TFramePreviewCore.UniTimer1Timer(Sender: TObject);
begin
   try GetFrame2; except end;
End;

 

 

thanks.

[Farshad Mohajeri]

It is related to way browser handle images. Some browsers clear the image place holder before loading a new one.

 

Instead of uniImage you can use TUniCanvas to render images. It should resolve flickering.

[docjones]

It is related to way browser handle images. Some browsers clear the image place holder before loading a new one.

 

Instead of uniImage you can use TUniCanvas to render images. It should resolve flickering.

 

thaks Farshad , but using unicanvas, painting every 100ms, cpu goes 100% and it's too slow. i will try with some html/javascript or ussing an applet and load on uniurlframe.

 

thanks.

[Farshad Mohajeri]

thaks Farshad , but using unicanvas, painting every 100ms, cpu goes 100% and it's too slow. i will try with some html/javascript or ussing an applet and load on uniurlframe.

 

thanks.

 

If both server and browser are on same PC it can be slow.

[Farshad Mohajeri]

thaks Farshad , but using unicanvas, painting every 100ms, cpu goes 100% and it's too slow. i will try with some html/javascript or ussing an applet and load on uniurlframe.

 

Well, if you need a display rate above 2 FPS you must prefer live image streaming.

[vlkc]

I have the same problem. How can I do live image streaming directly from camera?

[WildFrag]

may be iframe from camera url?