| Author |
Message |
glanotte
Guest
|
 Posted:
Fri Jun 04, 2004 5:37 pm Post subject:
CIF / QCIF Video |
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I am working on an application that will require a video
application to send CIF video and receive QCIF video. I
have tried many different things, but have not been able
to find a way to make this work. The captures show that
everything negotiates properly, but no RTP sends either
way. Does anyone have any thoughts? |
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Brian Sullivan MVP
Guest
|
| Posted:
Fri Jun 04, 2004 6:43 pm Post subject:
Re: CIF / QCIF Video |
|
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glanotte wrote:
| Quote: | I am working on an application that will require a video
application to send CIF video and receive QCIF video. I
have tried many different things, but have not been able
to find a way to make this work. The captures show that
everything negotiates properly, but no RTP sends either
way. Does anyone have any thoughts?
|
I am not sure about your application needs -- is this application based on
NetMeeting? Can NetMeeting itself capture and send in small, medium and
large capture modes (SQIF,QIF,CIF). AFAIK if this is possible it should also
be possible in a NetMeeting SDK based application. The ActiveX component
though I think has some limitations and may be only able to operate in QIF
capture mode/display.
NetMeeting normally can capture send CIF QCIF or SQIF in an H.323 call. In
some situations ( depending on the capture devices and configuration
involved CIF capture/send is not available).
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp |
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Guest
|
| Posted:
Mon Jun 07, 2004 7:04 pm Post subject:
Re: CIF / QCIF Video |
|
|
My hope is actually not to have to resort to any sort of
developement here. The problem I have is for Netmeeting
to send CIF video while receiving QCIF at the same time.
It just seems to choke it for some reason and not RTP is
transmitted at all.
The captures show that the call is setting up like it
should, the logical channels open and then no RTP either
way.
| Quote: | -----Original Message-----
glanotte wrote:
I am working on an application that will require a
video
application to send CIF video and receive QCIF video.
I
have tried many different things, but have not been
able
to find a way to make this work. The captures show
that
everything negotiates properly, but no RTP sends either
way. Does anyone have any thoughts?
I am not sure about your application needs -- is this
application based on
NetMeeting? Can NetMeeting itself capture and send in
small, medium and
large capture modes (SQIF,QIF,CIF). AFAIK if this is
possible it should also
be possible in a NetMeeting SDK based application. The
ActiveX component
though I think has some limitations and may be only able
to operate in QIF
capture mode/display.
NetMeeting normally can capture send CIF QCIF or SQIF in
an H.323 call. In
some situations ( depending on the capture devices and
configuration
involved CIF capture/send is not available).
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp
.
|
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Brian Sullivan MVP
Guest
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glanotte
Guest
|
| Posted:
Mon Jun 07, 2004 7:24 pm Post subject:
Re: CIF / QCIF Video |
|
|
I am using netmeeting stand alone, I set the video size
to Large, the client we are using to connect we set to
send qcif.
When I do qcif-qcif or cif-cif it will work fine.
| Quote: | -----Original Message-----
anonymous@discussions.microsoft.com wrote:
My hope is actually not to have to resort to any sort
of
developement here. The problem I have is for
Netmeeting
to send CIF video while receiving QCIF at the same
time.
It just seems to choke it for some reason and not RTP
is
transmitted at all.
AFIK what size video is captured and sent is independent
of the size
received.
I would first try this with NetMeeting alone to see if
it functions the way
you expect. If it does I suspect the problem is
somewhere in your
implementation ( I assume you are attempting to use the
SDK?).
SDK questions are usually better posed in the
news://msnews.microsoft.com/microsoft.public.internet.act
ivex.conferencing.sdk
newsgroup designated for SDK support
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp
.
|
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Brian Sullivan MVP
Guest
|
| Posted:
Mon Jun 07, 2004 7:36 pm Post subject:
Re: CIF / QCIF Video |
|
|
glanotte wrote:
| Quote: | I am using netmeeting stand alone, I set the video size
to Large, the client we are using to connect we set to
send qcif.
|
Well afaik there should not be a problem -- both sides are using NetMeeting
alone ( no activex component embedded in a web page for instance?).
Large = cif, medium = qcif.
I presume both ends have been tested in preview mode at the sizes required.
You say "no RTP sends either way" -- I am not sure what that means. No video
either way?-- what about audio?
Calls can be data only ( a secure call for instance is the most common thing
forcing a data only call). Lack of reception of audio/video can be due to
being behind a NAT. Lack of transmission can also be caused ( in XP) by a
fault in the "QoS Packet Scheduler" ( the solution is to disable it in the
NIC).
I can't tell from the information you provided if any of these might apply.
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp |
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glanotte
Guest
|
| Posted:
Mon Jun 07, 2004 9:33 pm Post subject:
Re: CIF / QCIF Video |
|
|
I am actually using netmeeting on one of our endpoints,
the other endpoint is a proprietary video proxy server
utilizing the radvision h323 stacks. From my latest
rounds of testing I have been able to get one way video.
Netmeeting will send the CIF video, but will not accept
the qcif video. From the captures, it seems as though
netmeeting negotiates the incoming video at the same
frame size as the outgoing. The other observation which
seems to back this up is the netmeeting window "grows" to
the CIF size once the call is connected.
I attempted to modify the framesize/imagequality reg keys
in HKCU/software/microsoft/conferencing/video control but
with no luck. Any thoughts?
| Quote: | -----Original Message-----
glanotte wrote:
I am using netmeeting stand alone, I set the video size
to Large, the client we are using to connect we set to
send qcif.
Well afaik there should not be a problem -- both sides
are using NetMeeting
alone ( no activex component embedded in a web page for
instance?).
Large = cif, medium = qcif.
I presume both ends have been tested in preview mode at
the sizes required.
You say "no RTP sends either way" -- I am not sure what
that means. No video
either way?-- what about audio?
Calls can be data only ( a secure call for instance is
the most common thing
forcing a data only call). Lack of reception of
audio/video can be due to
being behind a NAT. Lack of transmission can also be
caused ( in XP) by a
fault in the "QoS Packet Scheduler" ( the solution is to
disable it in the
NIC).
I can't tell from the information you provided if any of
these might apply.
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp
.
|
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|
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glanotte
Guest
|
| Posted:
Mon Jun 07, 2004 9:35 pm Post subject:
Re: CIF / QCIF Video |
|
|
one addendum to my previous post, I have tried with other
endpoints and can connect and send video, so I do not
believe this to be a problem with the proxy server.
| Quote: | -----Original Message-----
glanotte wrote:
I am using netmeeting stand alone, I set the video size
to Large, the client we are using to connect we set to
send qcif.
Well afaik there should not be a problem -- both sides
are using NetMeeting
alone ( no activex component embedded in a web page for
instance?).
Large = cif, medium = qcif.
I presume both ends have been tested in preview mode at
the sizes required.
You say "no RTP sends either way" -- I am not sure what
that means. No video
either way?-- what about audio?
Calls can be data only ( a secure call for instance is
the most common thing
forcing a data only call). Lack of reception of
audio/video can be due to
being behind a NAT. Lack of transmission can also be
caused ( in XP) by a
fault in the "QoS Packet Scheduler" ( the solution is to
disable it in the
NIC).
I can't tell from the information you provided if any of
these might apply.
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp
.
|
|
|
| Back to top |
|
|
Brian Sullivan MVP
Guest
|
| Posted:
Mon Jun 07, 2004 9:44 pm Post subject:
Re: CIF / QCIF Video |
|
|
glanotte wrote:
| Quote: | I am actually using netmeeting on one of our endpoints,
the other endpoint is a proprietary video proxy server
utilizing the radvision h323 stacks.
|
What happens if NetMeeting is a both ends?
| Quote: | From my latest
rounds of testing I have been able to get one way video.
Netmeeting will send the CIF video, but will not accept
the qcif video. From the captures, it seems as though
netmeeting negotiates the incoming video at the same
frame size as the outgoing.
|
I am not sure what happens at a protocol level but visually if what I
remember is correct ( I don't have two equipped clients to test with here to
confrim), having different size video works as expected.
| Quote: | The other observation which
seems to back this up is the netmeeting window "grows" to
the CIF size once the call is connected.
|
I don't remember this as a problem.
| Quote: |
I attempted to modify the framesize/imagequality reg keys
in HKCU/software/microsoft/conferencing/video control but
with no luck. Any
|
I am guessing that this is not a good strategy -- but I haven't done
anything like this so I don't know.
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp |
|
| Back to top |
|
|
Brian Sullivan MVP
Guest
|
| Posted:
Mon Jun 07, 2004 9:45 pm Post subject:
Re: CIF / QCIF Video |
|
|
glanotte wrote:
| Quote: | one addendum to my previous post, I have tried with other
endpoints and can connect and send video, so I do not
believe this to be a problem with the proxy server.
|
Well if it is a problem with NetMeeting there is not much hope of
resolution.
--
Brian Sullivan
Meeting by Wire ( http://www.meetingbywire.com)
------------
Is your PC protected? --
http://www.microsoft.com/security/protect/default.asp |
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