Plantronics + Polycom. Now together as Poly Logo

HDX H.263 Video resolution 4CIF

G14np13r0
Occasional Advisor

HDX H.263 Video resolution 4CIF

Goodmorning everybody,

 

I'm proposing Polycom HDX for technological renew to a prospect that already have an huge installation of old Aethra codecs and Radvision MCUs.

All the legacy codec and MCUs uses H.263 codec and 4CIF resolution (with 384kbps).

 

Since the project will last almost 3 years for the renew we should at least garantee the 4CIF 384kbps H.263 interoperabiliy between legacy and new HDX.

 

Doing some interoperability tests using an HDX 8000 (3.0.1) I've found that this codec talks in H.263 only in CIF resolution.

 

Do you have any idea if there is a workaround to force the 4CIF resolution in H.263. I've tried everything I knew:

- Set camera on sharpness

- Change the bandwidth

- Enable maximum resolution

- Look at the APIs the find some hidden commands

 

But nothing.

 

Anyone has any advice?

 

Thanks

Message 1 of 11
10 REPLIES 10
G14np13r0
Occasional Advisor

Re: HDX H.263 Video resolution 4CIF firmware version

Sorry the firmware version is 3.0.4.

Message 2 of 11
petet
Trusted Contributor

Re: HDX H.263 Video resolution 4CIF

This may have a bearing.....

By default HDX will try & negotiate best frame rate to the detriment, if necessary of resolution. HDX-HDX 4CIF to HD VSX-VSX 4CIF HDX-VSX HDX gets 4CIF but sends only CIF. Connect to the HDX using Telnet. enter following command. config preferresolution 0 true
Retest to VSX.
Done

 

Pete

Message 3 of 11
G14np13r0
Occasional Advisor

Re: HDX H.263 Video resolution 4CIF

Hi Pete,

 

thanks for your response.

 

From which manual have you taken that command?

Since I'd searched in the integrators guide as well as administrator guide and found nothing like that.

 

Thanks in advance for your help.

 

Gian

 

Message 4 of 11
petet
Trusted Contributor

Re: HDX H.263 Video resolution 4CIF

Hi Gian.

I can't remember where I got it from.   I think it may haver been in a Polycom Knowledge Base article.

That's why I saved a note of it.  Hopet was useful.

Pete

Message 5 of 11
G14np13r0
Occasional Advisor

Re: HDX H.263 Video resolution 4CIF

Hi Pete,

 

sorry for this really late reply. 

 

Your solution worked totally. Thank you very much!

 

Gian

Message 6 of 11
PolycomMGC
Occasional Visitor

Re: HDX H.263 Video resolution 4CIF

Too bad it doesn't work with the Polycom MGC...

Please Polycom, help us solve this issue :)

Message 7 of 11
sbastos
Visitor

Re: HDX H.263 Video resolution 4CIF

Hi, guys!

 

   I have the same issue. Where may I insert this command? Telnet or SSH?

 

Thanks!!

 

Sillas Bastos

Message 8 of 11
G14np13r0
Occasional Advisor

Re: HDX H.263 Video resolution 4CIF

Hi Sbastos,

You need to connect on HDX using telnet. Remember to enable it before using your web interface.

Regards.
Message 9 of 11
EltonAlbano
Member

Re: HDX H.263 Video resolution 4CIF

Hello Pete ... what are the commands beyond this that reported below (config preferresolution 0 true).
This does not present any information, shows invalid!.

Message 10 of 11