Issue 2969: C&M ofAudio/Video Streams (avstreams-rtf)
Source:  (, )
Nature: Clarification
Severity: 
Summary: I am going to implement OMG Control and Management of Audio/Video Streams
specification. We used IONA's implementation: Orbix MediaStreams but we
are not fully satisfied with it.
I have some questions:
1. StreamCtrl has a 'Status' property which is 'seqflowStatus' - probably
sequence of flowStatus structures. But there is no such typedef in the IDL
specification.
2. StreamCtrl has alse A_parties and B_parties sequences. The same
problem.

Resolution: 
Revised Text: 
Actions taken:
October 5, 1999: received issue
Discussion: 

End of Annotations:=====
X-Authentication-Warning: iris.ics.agh.edu.pl: luke owned process
doing -bs
Date: Tue, 5 Oct 1999 15:38:25 +0200 (MET DST)
From: Lukasz Czekierda <luke@ics.agh.edu.pl>
To: AVStreams <avstreams-rtf@omg.org>
Subject: OMG C&M ofAudio/Video Streams
Message-ID:
<Pine.GSO.3.95.991005153623.15204J-100000@iris.ics.agh.edu.pl>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-UIDL: P<9!!9)dd98i@e9Z#Oe9


I am going to implement OMG Control and Management of Audio/Video
Streams
specification. We used IONA's implementation: Orbix MediaStreams but
we
are not fully satisfied with it.
I have some questions:
1. StreamCtrl has a 'Status' property which is 'seqflowStatus' -
probably
sequence of flowStatus structures. But there is no such typedef in the
IDL
specification.
2. StreamCtrl has alse A_parties and B_parties sequences. The same
problem.

How to implement these properties?

With best regards,

Lukasz Czekierda, MSc Eng

Istitute of Computer Science of University of Mining and Metallurgy
Krakow, Poland



To: Lukasz Czekierda <luke@ics.agh.edu.pl>, avstreams-rtf@omg.org,
        juergen@omg.org
Message-ID: <37FA61C7.9EF10708@lucent.com>
Date: Tue, 05 Oct 1999 16:38:31 -0400
From: Tom Rutt <terutt@lucent.com>
Reply-To: terutt@lucent.com
Organization: Lucent Technologies
X-Mailer: Mozilla 4.6 [en]C-CCK-MCD EMS-1.4  (Win95; U)
X-Accept-Language: en
MIME-Version: 1.0
Original-To: Lukasz Czekierda <luke@ics.agh.edu.pl>,
avstreams-rtf@omg.org,
        juergen@omg.org
Subject: Re: OMG C&M ofAudio/Video Streams
References:
<Pine.GSO.3.95.991005153623.15204J-100000@iris.ics.agh.edu.pl>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset=us-ascii
X-UIDL: kT6e9H51!!:fC!!Vf=!!

These are properties which have data type 
"ANY".

The standard properties should have the IDL rigidly
defined, but since it is carried in an ANY, the text
can get away with being rather sloppy.  HOwever, for interoperbility
and interworking the syntax really needs to be tied down for
the property types defined in the spec.

I think this warrants an omg clarification Issue to the Revision
task force.

However, I think it is obvious that the sequence<flowStatus>
is the correct type for seqflowstatus.

also  sequence<StreamEndPoint_A> and sequence<StreamEndPoint_B>

seem to be the obvious syntaxes for the A_parties and B_parties
property values, respective.

Lukasz Czekierda wrote:
> 
> I am going to implement OMG Control and Management of Audio/Video
> Streams
> specification. We used IONA's implementation: Orbix MediaStreams but
> we
> are not fully satisfied with it.
> I have some questions:
> 1. StreamCtrl has a 'Status' property which is 'seqflowStatus' -
> probably
> sequence of flowStatus structures. But there is no such typedef in
> the IDL
> specification.
> 2. StreamCtrl has alse A_parties and B_parties sequences. The same
> problem.
> 
> How to implement these properties?
> 
> With best regards,
> 
> Lukasz Czekierda, MSc Eng
> 
> Istitute of Computer Science of University of Mining and Metallurgy
> Krakow, Poland

-- 

Tom Rutt					email:
terutt@lucent.com
Lucent Technologies Bell Labs		Tel: +1(732)949-7862	
Rm 4L-336 101 Crawford Corner Rd	Fax: +1(732)949-1196
Holmdel NJ, 07733  USA

To: Lukasz Czekierda <luke@ics.agh.edu.pl>
cc: avstreams-rtf@omg.org
Subject: Re: OMG C&M ofAudio/Video Streams
References:
<Pine.GSO.3.95.991005153623.15204J-100000@iris.ics.agh.edu.pl>
Mime-Version: 1.0 (generated by tm-edit 7.106)
From: Nagarajan Surendran <naga@cs.wustl.edu>
Date: 05 Oct 1999 16:17:44 -0500
In-Reply-To: Lukasz Czekierda's message of Tue, 5 Oct 1999 15:38:25
+0200 (MET DST)
Message-ID: <kz6670lbj7r.fsf@tango.cs.wustl.edu>
Lines: 36
X-Mailer: Gnus v5.5/Emacs 20.2
Content-Type: text/plain; charset=US-ASCII
X-UIDL: FE+e9Zg/e9XRmd9'Uh!!

Hi Lukasz,

Lukasz Czekierda <luke@ics.agh.edu.pl> writes:
> I am going to implement OMG Control and Management of Audio/Video
> Streams
> specification. We used IONA's implementation: Orbix MediaStreams but
> we
> are not fully satisfied with it.

You may want to check the AVStream implementation in TAO. It supports
both full and light profile implementations and also  multipoint
bindings.

You can find it in the TAO release at
http://www.cs.wustl.edu/~schmidt/TAO.html 


Hope this helps.
Naga.

> I have some questions:
> 1. StreamCtrl has a 'Status' property which is 'seqflowStatus' -
> probably
> sequence of flowStatus structures. But there is no such typedef in
> the IDL
> specification.
> 2. StreamCtrl has alse A_parties and B_parties sequences. The same
> problem.
> 
> How to implement these properties?



> 
> With best regards,
> 
> Lukasz Czekierda, MSc Eng
> 
> Istitute of Computer Science of University of Mining and Metallurgy
> Krakow, Poland