[Mp4-tech] AAC+SBR(Gautam Moharir)

[Gautam Moharir]

 >   1.How to identify the sbr part in the adts test vector.AAC+SBR is a
backward compatible ie.it can also able to decode aac test bitsream.
> Any SBR related information will present inside the adts header.

SBR_EXTENSION flag is present in fill element of aac stream. if this flag is
not there in fill element then that aac stream is not HE-AAC stream.
No Information abt SBR is present in ADTS header
>  2.For AAC ,the decoded output size will be 4096 for the 2 channels.
Correct
>  3.For AAC+SBR,whether the output buffer size will be same or it will
> be 4096*2.
It will be 4096*2
With Regards
Gautam
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>    1. Re: Re: [Mp4-tech] AAC+SBR (sakthi  narayanan)
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> Message: 1
> Date: 17 Aug 2023 03:31:09 -0000
> From: "sakthi  narayanan" <dsn2603 rediffmail.com>
> Subject: Re: Re: [Mp4-tech] AAC+SBR
> To: mp4-tech lists.mpegif.org
> Message-ID: <20050817033109.11779.qmail webmail47.rediffmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi all,
>
>   1.How to identify the sbr part in the adts test vector.AAC+SBR is a
backward compatible ie.it can also able to decode aac test bitsream.
> Any SBR related information will present inside the adts header.
>
>  2.For AAC ,the decoded output size will be 4096 for the 2 channels.
>
>  3.For AAC+SBR,whether the output buffer size will be same or it will
> be 4096*2.
>
>
> With Regards,
> Sakthi Narayanan
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