[Mp4-tech] Re: Maintaining CBR in AAC LD

[Ralph Sperschneider]

Viraj Karandikar wrote:
>
> Hi,
>
> AAC LD use ER AAC LD object type. This type uses er_raw_data_block() 
> which doesn’t support fill elements.
>
> So how to maintain CBR in AAC LD streams without fill elements?
>
> Regards,
>
> Viraj
>

Dear Viraj,
there is still a fill mechanism available by means of the extension 
payload. Using the extension type EXT_FILL you can spend any number of 
fill bytes. Alternatively you can us the extension type EXT_FILL_DATA, 
which requires a special bit pattern for the fill bytes.
Best regards,
Ralph
-- 
Dipl.-Ing. Ralph Sperschneider  | Phone: +49 9131 776 344
Fraunhofer IIS                  | Fax:   +49 9131 776 398
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