[Mp4-tech] Re: LATM LOAS fill bits

[Ralph Sperschneider]

Danijel Domazet wrote:
>  
> Hi MP4Tech,
>  
> Here is a syntax snippet from LATM/LOAS AAC audio as defined in 
> ISO/IEC 14496-3:2001 Technical Corrigendum 2, 15.6.2004. (page 8.):
>  
>  
> if(!useSameConfig)
> {
>  if(audioMuxVersion==1)
>  {
>     ascLen = LatmGetValue();
>  }
>   ascLen -=AudioSpecificConfig();
>   *fillBits*; (ascLen is the nubmer of fill bits to be writen)
> }
>  
>  
> It is obvious that in case of audioMuxVersion == 0, ascLen gets used 
> without having been initialized. The question is: how many fillBits 
> should be written to bitstream in this case? Please, help.  
>  
>  
> Regards,
> Danijel Domazet
>  
>  

The syntax was fixed meanwhile and reads now as follows:
if (! useSameConfig) {
   if ( audioMuxVersion == 0 ) {
      AudioSpecificConfig();
   }
   else {
     ascLen = LatmGetValue();
     ascLen -= AudioSpecificConfig();
     fillBits;
   }
}
Ralph
-- 
Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
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