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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 14 2008 at 10:25pm | IP Logged
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Hi VoIP Media Engine Guru:
I hope to add support of G.723.1 and G.722.2 codec into future VoIP Media Engine release. In fact, these codec implementation source code can be found easily over web, so it is only duty to optimize code base and integrate it into media engine.
Maybe u don't know, an russian company SpiritDSP also provides media enigne for PC and mobile. Therefore as potential your customer, I think u can study its feature and implement it into your own product.
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: October 15 2008 at 7:52am | IP Logged
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Hi speedvoip,
Yes, yes, yes! More codec support is valuable. We have a list of codecs we want to incorporate into the media engine and your suggestions fit exactly.
Feel free to post all your thoughts to this thread on what codecs the LS media engine should support. We would truly love to hear your thoughts.
Actually, we have not heard of the SpiritDSP guys… so thanks for pointing them out to us. There is so much “stuff” out there it is hard to keep pace with it all. We will review their product offerings.
When you suggest that we incorporate G723.1 codec, you are aware that in order to use/deploy that codec, there are license/royalties that must be paid to the intellectual property holders. You know that right? If we are wrong, please correct us.
As far as wideband codecs go, we have not had tons of requests for them. We understand why wideband media would be a benefit but most of our requests go the other way – namely to massively reduce media bandwidth such as with G729 codec flavors.
Support
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: October 21 2008 at 10:35am | IP Logged
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Hi George,
If you have the reference ITU G722.2 source code implementation of this codec, please forward that to us if you can. We will look it over and see if we can't get this codec implemented sometime in the short term.
Support
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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 21 2008 at 10:58am | IP Logged
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Pls refer to OPAL www.opalvoip.org. There is open source g.722.2 implementation. Or u also can google it over internet. Many results pop up.
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support
Administrator
Joined: January 26 2005
Location: United States
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| Posted: October 21 2008 at 11:12am | IP Logged
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Great. We will check into it...
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support
Administrator
Joined: January 26 2005
Location: United States
Posts: 1666
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| Posted: October 21 2008 at 11:29am | IP Logged
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As far as we see, Opal does not support G722.2 wideband codec it supports G722 - not the same thing.
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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 21 2008 at 11:53am | IP Logged
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Hi Support:
Per what I know, there are the following open source body supporting G.722.2 i.e. AMR-WB
1. Intel IPP Framework Library Sample;
2. Wengo Softphone;
3. OPAL latest development snapshot;
In fact many variant of stuffs can be found.
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support
Administrator
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Location: United States
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| Posted: October 21 2008 at 2:21pm | IP Logged
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Thanks George. We see there is an implementation over at 3gpp via OPAL. Our mistake.
Good show.....
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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 23 2008 at 12:13am | IP Logged
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I have found ETSI 3GPP G722.2 reference implementation in ANSI C source code together with guide reading document.
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support
Administrator
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| Posted: October 23 2008 at 2:09am | IP Logged
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If you want, archive everything and forward that to us here. We will look it over. You should have our support email address.
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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 24 2008 at 1:26am | IP Logged
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I have send source code of g.722.2 to support email.
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support
Administrator
Joined: January 26 2005
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| Posted: October 24 2008 at 7:22am | IP Logged
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Hi George,
Thanks for the effort in forwarding this to us. We will deifinitely check this out.
By the way, your posts are time stamped very early in the morning (1:00 am, etc). It looks like you work the "grave yard" shift. Where are you located?
More to come....
Randal
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speedvoip
Vetran
Joined: August 07 2008
Location: Canada
Posts: 156
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| Posted: October 24 2008 at 12:10pm | IP Logged
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Wonderful, I guess u are architect and core development member of median engine. I am in ShenZhen, China.
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support
Administrator
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Location: United States
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| Posted: October 24 2008 at 3:40pm | IP Logged
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Hi George,
My name is Randal. I am the CTO of LanScape. I run this organization and we are a small company. I usually moderate this support forum directly with the help of some of my developers. I probably post/answer about 80% of the total support forum posts. All posts we place on this support forum come directly from myself or from my other handful of software developers when they have to cover for me.
Thanks,
Randal
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LanScape Support Forum -> LanScape VOIP Media Engine™ - Pre-Sales Technical Support
Topic: G.723.1 and G.722.2 codec support
