Posted: Sun Jul 02, 2006 9:35 pm Post subject: [Asterisk-video] vdo conf
Hi, all!
This is my first email on this list, so, plz, dont get too bored if
this question has been asked many times already... When can I expect
vdo conf support in Asterisk?
I saw many ppl talking and asking this question on asterisk.org forum,
however, there were only negative answers, no answers at all or
redirection to this list. So, here I am...
Posted: Sun Jul 02, 2006 9:48 pm Post subject: [Asterisk-video] vdo conf
Hi,
Andrey Kouprianov wrote:
Quote:
This is my first email on this list, so, plz, dont get too bored if
this question has been asked many times already... When can I expect
vdo conf support in Asterisk?
What is vdo conf? Video conferencing? Please, explain a bit more...
Posted: Sun Jul 02, 2006 10:00 pm Post subject: [Asterisk-video] vdo conf
Yes, it's video conferencing. Just like the meetme conferencing. The
only problem is that everyone says that you have to allow vdo codecs
in sip.conf first, but, feature page in asterisk.org does not list any
vdo codec support and guys on forum there kind of discourage usage of
vdo conferencing uptil now. So I assume that vdo conferencing is not a
fully blown feature in Asterisk yet.
On 7/3/06, Paul Cadach <paul@odt.east.telecom.kz> wrote:
Quote:
Hi,
Andrey Kouprianov wrote:
> This is my first email on this list, so, plz, dont get too bored if
> this question has been asked many times already... When can I expect
> vdo conf support in Asterisk?
What is vdo conf? Video conferencing? Please, explain a bit more...
WBR,
Paul.
_______________________________________________
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Posted: Sun Jul 02, 2006 11:35 pm Post subject: [Asterisk-video] vdo conf
Hello Andrew,
Andrey Kouprianov wrote:
Quote:
Yes, it's video conferencing. Just like the meetme conferencing. The
only problem is that everyone says that you have to allow vdo codecs
in sip.conf first, but, feature page in asterisk.org does not list any
vdo codec support and guys on forum there kind of discourage usage of
vdo conferencing uptil now. So I assume that vdo conferencing is not a
fully blown feature in Asterisk yet.
To perform videoconferencing Asterisk needs to have video-transconding
functionality (i.e. meetme/other sort of conferencing software) should _decode_
video streams coming from conference participants, merge them into signle
"screen" then _encode_ it back with codecs supported by conference parties. In
current state video transcoding functionality isn't supported by Asterisk.
Also, video conferencing have some sort of video-audio synchronization issues
which isn't handled in current Asterisk's design.
Shortly:
1) There is no video codecs;
2) There is no audio-video sychnronization.
Posted: Sun Jul 02, 2006 11:48 pm Post subject: [Asterisk-video] vdo conf
Hi, Paul
Thank you for your prompt reply. Then it seems I'd have to find some
other vdo conf software for the time being :-(. Anyway, do you know if
video transcoding is in any future prospect for Asterisk? If, yes,
then when would we expect this functionality be added (date/time
period)? I suppose it shouldnt be that long, since Asterisk team seems
very quick in elaborating their software. :)
Bests,
Andrey.
On 7/3/06, Paul Cadach <paul@odt.east.telecom.kz> wrote:
Quote:
Hello Andrew,
Andrey Kouprianov wrote:
> Yes, it's video conferencing. Just like the meetme conferencing. The
> only problem is that everyone says that you have to allow vdo codecs
> in sip.conf first, but, feature page in asterisk.org does not list any
> vdo codec support and guys on forum there kind of discourage usage of
> vdo conferencing uptil now. So I assume that vdo conferencing is not a
> fully blown feature in Asterisk yet.
To perform videoconferencing Asterisk needs to have video-transconding
functionality (i.e. meetme/other sort of conferencing software) should _decode_
video streams coming from conference participants, merge them into signle
"screen" then _encode_ it back with codecs supported by conference parties. In
current state video transcoding functionality isn't supported by Asterisk.
Also, video conferencing have some sort of video-audio synchronization issues
which isn't handled in current Asterisk's design.
Shortly:
1) There is no video codecs;
2) There is no audio-video sychnronization.
WBR,
Paul.
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
Posted: Mon Jul 03, 2006 12:55 am Post subject: [Asterisk-video] vdo conf
hi andrey,
I wish you luke to find something that does videotranscoding properly!
If you find one, let us know!!!
Otherwise, we are thinking about using VLC in the 1.6 for doing the video-transcoding!
Quote:
Date: Mon, 3 Jul 2006 15:48:36 +0700> From: andrey.kouprianov@gmail.com> To: asterisk-video@lists.digium.com> Subject: Re: [Asterisk-video] vdo conf> > Hi, Paul> > Thank you for your prompt reply. Then it seems I'd have to find some> other vdo conf software for the time being :-(. Anyway, do you know if> video transcoding is in any future prospect for Asterisk? If, yes,> then when would we expect this functionality be added (date/time> period)? I suppose it shouldnt be that long, since Asterisk team seems> very quick in elaborating their software. :)> > Bests,> > Andrey.> > On 7/3/06, Paul Cadach <paul@odt.east.telecom.kz> wrote:> > Hello Andrew,> >> > Andrey Kouprianov wrote:> > > Yes, it's video conferencing. Just like the meetme conferencing. The> > > only problem is that everyone says that you have to allow vdo codecs> > > in sip.conf first, but, feature page in asterisk.org does not list any> > > vdo codec support and guys on forum there kind of discourage usage of> > > vdo conferencing uptil now. So I assume that vdo conferencing is not a> > > fully blown feature in Asterisk yet.> >> > To perform videoconferencing Asterisk needs to have video-transconding> > functionality (i.e. meetme/other sort of conferencing software) should _decode_> > video streams coming from conference participants, merge them into signle> > "screen" then _encode_ it back with codecs supported by conference parties. In> > current state video transcoding functionality isn't supported by Asterisk.> >> > Also, video conferencing have some sort of video-audio synchronization issues> > which isn't handled in current Asterisk's design.> >> >> > Shortly:> > 1) There is no video codecs;> > 2) There is no audio-video sychnronization.> >> >> > WBR,> > Paul.> >> > _______________________________________________> > --Bandwidth and Colocation provided by Easynews.com --> >> > asterisk-video mailing list> > To UNSUBSCRIBE or update options visit:> > http://lists.digium.com/mailman/listinfo/asterisk-video> >> _______________________________________________> --Bandwidth and Colocation provided by Easynews.com --> > asterisk-video mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-video
_________________________________________________________________
Posted: Mon Jul 03, 2006 12:59 am Post subject: [Asterisk-video] vdo conf
Hi Ramtin
Forgive my ignorance, because I dont know what VLC is. However, I'll
surely let you know on video transcoding issue, if i find a suitable
one! :)
Regards,
Andrey.
On 7/3/06, Ramtin Amin <keytwho@hotmail.com> wrote:
Quote:
hi andrey,
I wish you luke to find something that does videotranscoding properly!
If you find one, let us know!!!
Otherwise, we are thinking about using VLC in the 1.6 for doing the
video-transcoding!
>
> Hi, Paul
>
> Thank you for your prompt reply. Then it seems I'd
have to find some
> other vdo conf software for the time being :-(.
Anyway, do you know if
> video transcoding is in any future prospect for
Asterisk? If, yes,
> then when would we expect this functionality be added
(date/time
> period)? I suppose it shouldnt be that long, since
Asterisk team seems
> very quick in elaborating their software. :)
>
> Bests,
>
> Andrey.
>
> On 7/3/06, Paul Cadach <paul@odt.east.telecom.kz> wrote:
> > Hello Andrew,
> >
> > Andrey Kouprianov wrote:
> > > Yes, it's video conferencing. Just like the
meetme conferencing. The
> > > only problem is that everyone says that you
have to allow vdo codecs
> > > in sip.conf first, but, feature page in asterisk.org does not list any
> > > vdo codec support and guys on forum there kind
of discourage usage of
> > > vdo conferencing uptil now. So I assume that vdo
conferencing is not a
> > > fully blown feature in Asterisk yet.
> >
> > To perform videoconferencing Asterisk needs to have
video-transconding
> > functionality (i.e. meetme/other sort of conferencing
software) should _decode_
> > video streams coming from conference
participants, merge them into signle
> > "screen" then _encode_ it back with codecs supported
by conference parties. In
> > current state video transcoding functionality isn't
supported by Asterisk.
> >
> > Also, video conferencing have some sort of
video-audio synchronization issues
> > which isn't handled in current Asterisk's design.
> >
> >
> > Shortly:
> > 1) There is no video codecs;
> > 2) There is no audio-video sychnronization.
> >
> >
> > WBR,
> > Paul.
> >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > asterisk-video mailing list
> > To UNSUBSCRIBE or update options visit:
> >
http://lists.digium.com/mailman/listinfo/asterisk-video
> >
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-video mailing list
> To UNSUBSCRIBE or update options visit:
>
http://lists.digium.com/mailman/listinfo/asterisk-video
________________________________
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asterisk-video mailing list
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On 7/3/06, Andrey Kouprianov <andrey.kouprianov@gmail.com> wrote:
Quote:
Hi Ramtin
Forgive my ignorance, because I dont know what VLC is. However, I'll
surely let you know on video transcoding issue, if i find a suitable
one! :)
Regards,
Andrey.
On 7/3/06, Ramtin Amin <keytwho@hotmail.com> wrote:
>
> hi andrey,
> I wish you luke to find something that does videotranscoding properly!
> If you find one, let us know!!!
> Otherwise, we are thinking about using VLC in the 1.6 for doing the
> video-transcoding!
>
>
>
>
>
> ________________________________
>
> > Date: Mon, 3 Jul 2006 15:48:36 +0700
> > From: andrey.kouprianov@gmail.com
> > To: asterisk-video@lists.digium.com
> > Subject: Re: [Asterisk-video] vdo conf
>
> >
> > Hi, Paul
> >
> > Thank you for your prompt reply. Then it seems I'd
> have to find some
> > other vdo conf software for the time being :-(.
> Anyway, do you know if
> > video transcoding is in any future prospect for
> Asterisk? If, yes,
> > then when would we expect this functionality be added
> (date/time
> > period)? I suppose it shouldnt be that long, since
> Asterisk team seems
> > very quick in elaborating their software. :)
> >
> > Bests,
> >
> > Andrey.
> >
> > On 7/3/06, Paul Cadach <paul@odt.east.telecom.kz> wrote:
> > > Hello Andrew,
> > >
> > > Andrey Kouprianov wrote:
> > > > Yes, it's video conferencing. Just like the
> meetme conferencing. The
> > > > only problem is that everyone says that you
> have to allow vdo codecs
> > > > in sip.conf first, but, feature page in asterisk.org does not list any
> > > > vdo codec support and guys on forum there kind
> of discourage usage of
> > > > vdo conferencing uptil now. So I assume that vdo
> conferencing is not a
> > > > fully blown feature in Asterisk yet.
> > >
> > > To perform videoconferencing Asterisk needs to have
> video-transconding
> > > functionality (i.e. meetme/other sort of conferencing
> software) should _decode_
> > > video streams coming from conference
> participants, merge them into signle
> > > "screen" then _encode_ it back with codecs supported
> by conference parties. In
> > > current state video transcoding functionality isn't
> supported by Asterisk.
> > >
> > > Also, video conferencing have some sort of
> video-audio synchronization issues
> > > which isn't handled in current Asterisk's design.
> > >
> > >
> > > Shortly:
> > > 1) There is no video codecs;
> > > 2) There is no audio-video sychnronization.
> > >
> > >
> > > WBR,
> > > Paul.
> > >
> > > _______________________________________________
> > > --Bandwidth and Colocation provided by Easynews.com --
> > >
> > > asterisk-video mailing list
> > > To UNSUBSCRIBE or update options visit:
> > >
> http://lists.digium.com/mailman/listinfo/asterisk-video
> > >
> > _______________________________________________
> > --Bandwidth and Colocation provided by Easynews.com --
> >
> > asterisk-video mailing list
> > To UNSUBSCRIBE or update options visit:
> >
> http://lists.digium.com/mailman/listinfo/asterisk-video
>
>
> ________________________________
> Be one of the first to try Windows Live Mail.
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
>
> asterisk-video mailing list
> To UNSUBSCRIBE or update options visit:
>
> http://lists.digium.com/mailman/listinfo/asterisk-video
>
>
>
Posted: Mon Jul 03, 2006 2:08 am Post subject: [Asterisk-video] vdo conf
Paul Cadach wrote:
Quote:
Hello Andrew,
Andrey Kouprianov wrote:
>Yes, it's video conferencing. Just like the meetme conferencing. The
>only problem is that everyone says that you have to allow vdo codecs
>in sip.conf first, but, feature page in asterisk.org does not list any
>vdo codec support and guys on forum there kind of discourage usage of
>vdo conferencing uptil now. So I assume that vdo conferencing is not a
>fully blown feature in Asterisk yet.
To perform videoconferencing Asterisk needs to have video-transconding
functionality (i.e. meetme/other sort of conferencing software) should _decode_
video streams coming from conference participants, merge them into signle
"screen" then _encode_ it back with codecs supported by conference parties. In
current state video transcoding functionality isn't supported by Asterisk.
Also, video conferencing have some sort of video-audio synchronization issues
which isn't handled in current Asterisk's design.
Shortly:
1) There is no video codecs;
2) There is no audio-video sychnronization.
provided everyone use the same codec, there is another solution which
only shows the talker's incoming video stream, i.e. do not mix video,
only audio. There has to be some delay though, so the videostream
does not jump around all the time as someone coughs...
Some people on this mailing list are working on it and we're discussing
how to make it into a contribution for Asterisk 1.6.
Posted: Mon Jul 03, 2006 2:17 am Post subject: [Asterisk-video] vdo conf
By the way, I wonder now!
If people are videoconferancing, is it better to have
1- a softphone capable of showing everybody, which means one window for each one that is talking. (what would happen with current hardphone that have only one screen)
2- a softphone that has a single window but the pbx that sends a gride with the video of everybody in it ? (Since the video resolution is not that great, is it really worth it or after 4 people it would just look like 1 pixel for each head we see)
3- everybody see the one that talks. So if you want people to see you, you have to be louder that the otherone!
4- any other idea ?
Quote:
Date: Mon, 3 Jul 2006 13:08:54 +0200> From: oej@edvina.net> To: asterisk-video@lists.digium.com> Subject: Re: [Asterisk-video] vdo conf> > Paul Cadach wrote:> > Hello Andrew,> > > > Andrey Kouprianov wrote:> > > >>Yes, it's video conferencing. Just like the meetme conferencing. The> >>only problem is that everyone says that you have to allow vdo codecs> >>in sip.conf first, but, feature page in asterisk.org does not list any> >>vdo codec support and guys on forum there kind of discourage usage of> >>vdo conferencing uptil now. So I assume that vdo conferencing is not a> >>fully blown feature in Asterisk yet.> > > > > > To perform videoconferencing Asterisk needs to have video-transconding> > functionality (i.e. meetme/other sort of conferencing software) should _decode_> > video streams coming from conference participants, merge them into signle> > "screen" then _encode_ it back with codecs supported by conference parties. In> > current state video transcoding functionality isn't supported by Asterisk.> > > > Also, video conferencing have some sort of video-audio synchronization issues> > which isn't handled in current Asterisk's design.> > > > > > Shortly:> > 1) There is no video codecs;> > 2) There is no audio-video sychnronization.> > > > > provided everyone use the same codec, there is another solution which> only shows the talker's incoming video stream, i.e. do not mix video,> only audio. There has to be some delay though, so the videostream> does not jump around all the time as someone coughs...> > Some people on this mailing list are working on it and we're discussing> how to make it into a contribution for Asterisk 1.6.> > /O> _______________________________________________> --Bandwidth and Colocation provided by Easynews.com --> > asterisk-video mailing list> To UNSUBSCRIBE or update options visit:> http://lists.digium.com/mailman/listinfo/asterisk-video
_________________________________________________________________
Posted: Mon Jul 03, 2006 3:07 am Post subject: [Asterisk-video] vdo conf
Hi everyone,
See inline...
Quote:
By the way, I wonder now!
If people are videoconferancing, is it better to have
1- a softphone capable of showing everybody, which means one window for each
one that is talking. (what would happen with current hardphone that have
only one screen)
Old and even new softphones dont have multiple screens, so, i guess
your second option looks attractive.
Quote:
2- a softphone that has a single window but the pbx that sends a gride with
the video of everybody in it ? (Since the video resolution is not that
great, is it really worth it or after 4 people it would just look like 1
pixel for each head we see)
This one is a really nice idea :). I like it very much! However,
pixel-head syndrome is a problem. Maybe it's possible to assign keys
to 2 or 4 vdo streams, so, when you press #1 (or smth like that), the
vdo of the first 2-4 participants is shown, if there are more people
in the conference, then #2 would switch to the next 2-4 participants,
and etc.
Quote:
3- everybody see the one that talks. So if you want people to see you, you
have to be louder that the otherone!
I dont know about others, but to me it sounds a little messy. :)
Quote:
4- any other idea ?
What about something like push-to-talk? A person that wishes to speak,
has to press some button and then his/her vdo will be automatically
selected...
Posted: Mon Jul 03, 2006 3:21 am Post subject: [Asterisk-video] vdo conf
Hi Guys,
Video conferencing systems have long since allowed for lots of
different ways of splicing and dicing the video being sent to the
endpoints:
- de-centralised MCUs (where the function is distributed audio video is
sent to all participants)
- centralised MCUs (where the MCU mixes the audio and video)
In the centralised scenario, the MCU would typically (at least these
days) allow each participant to select the video layout they would see.
So you might have 1/4 of the screen with the person speaking and 12
other participants each 16th of the screen. Or any combination of 1/2,
1/3, etc proportions of the video laid out in front of you.
Voice switching of the video has been around for a while but can make
you feel ill if there's a heated debate going on (lots of switching of
video sources) :-)
The likes of Polycom, Tandberg, VCON, RadVision etc have been offering
all of these solutions for many years. The trick is to supply
flexibility in the thing that is doing the mixing so that the
administrator and/or the user can chose for themselves. Then you need a
fancy IVR system, like Codian's, to allow a user to switch between their
favourite layouts.
Also, don't forget that if you're sending lots of streams to one
endpoint then:
a) the bandwidth is n times bigger
b) you've gotta decode n lots of video.
-----Original Message-----
From: asterisk-video-bounces@lists.digium.com
[mailto:asterisk-video-bounces@lists.digium.com] On Behalf Of Andrey
Kouprianov
Sent: 03 July 2006 13:08
To: Development discussion of video media support in Asterisk
Subject: Re: Re: [Asterisk-video] vdo conf
Hi everyone,
See inline...
Quote:
By the way, I wonder now!
If people are videoconferancing, is it better to have
1- a softphone capable of showing everybody, which means one window
for each
Quote:
one that is talking. (what would happen with current hardphone that
have
Quote:
only one screen)
Old and even new softphones dont have multiple screens, so, i guess
your second option looks attractive.
Quote:
2- a softphone that has a single window but the pbx that sends a gride
with
Quote:
the video of everybody in it ? (Since the video resolution is not that
great, is it really worth it or after 4 people it would just look like
1
Quote:
pixel for each head we see)
This one is a really nice idea :). I like it very much! However,
pixel-head syndrome is a problem. Maybe it's possible to assign keys
to 2 or 4 vdo streams, so, when you press #1 (or smth like that), the
vdo of the first 2-4 participants is shown, if there are more people
in the conference, then #2 would switch to the next 2-4 participants,
and etc.
Quote:
3- everybody see the one that talks. So if you want people to see you,
you
Quote:
have to be louder that the otherone!
I dont know about others, but to me it sounds a little messy. :)
Quote:
4- any other idea ?
What about something like push-to-talk? A person that wishes to speak,
has to press some button and then his/her vdo will be automatically
selected...
Bests,
Andrey.
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --
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