ASN.1 compilers; request
While at the IMTC meeting in Munich yesterday, a question was raised by an implementor who was having trouble compiling the ASN for H.323 V2. I suggested using the OSS or Teles ASN.l compilers, both of which he had not yet tried. However, this raises some interesting questions: 1)What is the complete list of available ASN.1 compilers, both commercial and free? 2)Are there known problems with some products that implementors should be warned about? I have in mind a section in the implementors guide on this topic. Please post responses to this request to the list so that all can benefit ASAP. I will as the editor of the implementor's guide to collect and edit the results for the guide. Thanks for your attention, Dale Skran Q13 Rapporteur
1)What is the complete list of available ASN.1 compilers, both commercial and free?
The OpenH323 project has elements of an ASN.1 Compiler (at a minimum) that might be of interest. Interested parties should refer to http://www.openh323.org/ where you can download code and/or get mailing list info. Best of luck! Greg /************************************************************** Greg Herlein gherlein@herlein.com Herlein Engineering www.herlein.com Software Development - Communications - Networking - Linux/Unix ***************************************************************/
2)Are there known problems with some products that implementors should be warned about?
I think that the implementors guide should also outline the licensing contitions currently imposed by the ASN.1 compilor vendors. At this time, some of the vendors sell the ASN.1 code like a virtual machine, and impose very restrictive licensing conditions, i.e. the source code of the encoder/decoder engine is never licensed unless an astronomical amount of money is paid. It would also be worthwhile to note that the OpenH323 project includes free "ASN.1 PER for H.323" C++ source code that is made available in the public domain. -=Francois=-
It would also be worthwhile to note that the OpenH323 project includes free "ASN.1 PER for H.323" C++ source code that is made available in the public domain.
Er, I would look closer at the OpenH323 license if I were you. It is open source, but that is VERY different than public domain. I don't think they released any of their code to the public domain.... best bet is to go look at it yourself at http://www.openh323.org/ Greg /************************************************************** Greg Herlein gherlein@herlein.com Herlein Engineering www.herlein.com Software Development - Communications - Networking - Linux/Unix ***************************************************************/
participants (3)
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Dale L. Skran -
Francois Menard -
Greg Herlein