[LAD] DAB Audio frame decoder

[Stefan Kost]

hi,

smprocess schrieb:
> Hi Fred,
> 
> Yes, when I said 'DAB', I'm talking about Eureka-147, not DAB+ which defines 
> HE-AAC.
> I know that DAB is obsolete, but I would like to use MPEG to create a 'audio 
> DAB kit' to my students courses.
> However, a library allowing to decode all DAB audio formats would be 
> welcome.
> The audio stream that I would like to decode is composed of MPEG frame + PAD 
> (ancillary data). Of course, I could separate both parts and decode them in 
> two process.
> Because I didn't find API to do this, I think that I will do it my self.

What about using GStreamer. There is mpegaudioparse element (mpeg audio
bitstream parser), Not sure about auxillary data. At least you'll get a
framework and can plugin in the part that is not there yet :)

Stefan

> 
> Regards,
> 
> Sylvain
> 
> 
> ----- Original Message ----- 
> From: "Fred Gleason" <fredg at paravelsystems.com>
> To: <linux-audio-dev at lists.linuxaudio.org>; 
> <linux-audio-user at lists.linuxaudio.org>
> Sent: Wednesday, October 29, 2008 12:43 AM
> Subject: Re: [LAD] DAB Audio frame decoder
> 
> 
>> On Tuesday 28 October 2008 02:11:12 pm smprocess wrote:
>>> I would like to know if somebody of you knows a C/C++ library allowing to
>>> decode DAB audio frame (commercial or not), specially to extract PAD
>>> components.
>> When you say 'DAB', I take it you're talking about Eureka-147 datastreams, 
>> not
>> the 'HD Radio' system in use in the USA?  ('Cause HD Radio is not MPEG).
>>
>>
>>> For your information, I'm working with the FxEngine Framework
>>> (http://www.smprocess.com) on DAB MPEG 1 layer II audio format.
>> Are these elemental streams?  If so, then I assume the PAD is in the 
>> ancillary
>> channel?
>>
>> Cheers!
>>
>>
>> |-------------------------------------------------------------------------|
>> | Frederick F. Gleason, Jr. |               Chief Developer 
>> |
>> |                           |               Paravel Systems 
>> |
>> |-------------------------------------------------------------------------|
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