[Asterisk-Dev] Asterisk Codecs Extension

[Alex Volkov]

Asterisk Codecs ExtensionPedro,

Simply look at any codec code in asterisk/codecs/. I suggest codec_ulaw.c or codec_alaw.c. The bulk of both of these is the necessary interfacing code to make whatever-generic-codec work with asterisk, and the actual conversions from xlaw to PCM and back are simple 2-liner loops. Once you understand the basic structure of an * codec, look at codec_g723_1.c for an example on how to handle a whatever-generic-codec that is an opaque library.
Model your new * codec on those, as I think those provide the best examples of an adaptation/abstraction layer.

Cheers!
Alex.
  ----- Original Message ----- 
  From: Pedro Bessa Goncalves 
  To: Asterisk-Dev at Lists. Digium. Com (asterisk-dev at lists.digium.com) 
  Sent: Tuesday, April 13, 2004 7:35 AM
  Subject: [Asterisk-Dev] Asterisk Codecs Extension


  Hi, does anyone know the required function headers for extending Asterisk codecs? 
  Is there another way to import 3rd party codecs? 

  Thank you, 
  Pedro Goncalves 
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