[AG-TECH] Re: Compiling VIC in Visual Studio 8 (2005)

[Sam Gundry]

Hi Andrew,

I am using multicast.  When I use the already compiled VIC binary (from 
the UCL installer), video appears in both VideoConsumerService and 
VideoProducerService windows.

The issue occurs when I use a VIC binary I compiled in Visual Studio 8.0.

When using the my compiled VIC, neither window has any video, but it is 
transmitting correctly since a remote machine, using a standard VIC 
binary, can see the video properly.

I think I've caused bugs in the program when trying to compile VIC in 
VS8.0. The following is the debug output:
> [224] [pid/224 +335 c:\sgundry\ucl media tools\common\src\mbus_config.c] 
> [224] Closed registry entry...
> --GetMcast: 12fa19ac 890046f8
> --GetMcast: 12fa19ac 890046f8
> [224] vic-2.8ucl1.2.1.SharedVideo: tcl runtime error: vic: _o13: no such method (enable_xv)
> [224] stack trace:
> [224] vic: _o13: no such method (enable_xv)
> [224]     while executing
> [224] "$target enable_xv $enable_xv"
> [224]     (procedure "attach_renderer" line 38)
> [224]     invoked from within
> [224] "attach_renderer $src $w $enable_xv"
> [224]     (procedure "attach_window" line 2)
> [224]     invoked from within
> [224] "attach_window $src $stamp.video false "
> [224]     (procedure "build.src" line 11)
> [224]     invoked from within
> [224] "build.src $w $src 1"
> [224]     (procedure "really_activate" line 9)
> [224]     invoked from within
> [224] "really_activate _o10"
> [224]     ("after" script)
> [224] Please mail this error message and, if possible, an explanation 
> [224] of what user-action caused it to vic at cs.ucl.ac.uk.

The error occurs in the "really_activate" procedure, which,  according 
to this article https://mediatools.cs.ucl.ac.uk/nets/mmedia/wiki/VicDev, 
is responsible for creating the video thumbnail.

Regards,
Sam

Andrew A Rowley wrote:
> Hi,
> 
> If you are using unicast, this is the way in which it works.  Only one of the vic instances can bind to the unicast port, which means that sometimes you will see video in the VideoConsumerService window, and sometimes in the VideoProducerService window.  It is fairly random as to which gets the video.  In any case, the quickbridge process that performs the bridging will never send anything you send back to you, so you will never see your video in the VideoConsumerService window when using unicast.  You should see your video in both windows when using multicast, although this will depend on your networking setup and operating system.
> 
> Andrew :)
> 
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