2008-08-27 03:50:08     BF526/BF527 based PBX - availability of Blackfin optimized codecs

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2008-08-27 03:50:08     BF526/BF527 based PBX - availability of Blackfin optimized codecs

Alexander Hoffmann (GERMANY)

Message: 61153   

 

I'm looking for several Blackfin optimized codecs for a BF527/6 based PBX.

 

I already found the G.729 library, also http://blog.astfin.org/ or www.digium.com is known. Unfortunately that's not what I'm looking for, since it seems to me that the code isn't optimized for Blackfin.

 

Also the Asterisk code seems to be the ITU reference implementation which consumes a lot of MIPs, so I wonder if the optimized Blackfin code for following libraries is already available.

 

- G.726 / G.722

- Tone Generation / Detection

- DTMF Generation / Detection

- Caller ID, FSK Generation / Detection

- Echo Compensation

- Sample Rate Converter for 8kHz <-> 16 kHz

 

I really appriciate if someone can point me in the right direction or can tell me what website I should have a look to. Of course, free libraries are prefered, but also commercial solutions will work.

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2008-08-27 04:18:33     Re: BF526/BF527 based PBX - availability of Blackfin optimized codecs

Andrea Federico Grisotto (ITALY)

Message: 61155   

 

You can found g.729 library codec optimized for blackfin in 'lib/libbfgdots' directory in uClinux distribution.

 

and other optimization and/or info in :

 

http://www.astfin.org

 

http://www.rowetel.com

 

http://www.rowetel.com/blog

 

 

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2008-08-29 08:49:59     Re: BF526/BF527 based PBX - availability of Blackfin optimized codecs

Alexander Hoffmann (GERMANY)

Message: 61378   

 

Thanks very much for your help.

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