Subject: [AVT] Question about RFC 3640 High Bit-rate AAC AU-header

From: "Ari Parkkila" <[email-masked]>
Date: Tue, 13 Dec 2005 10:26:47 +0200

Cheers,

Here is an excerpt from RFC 3640:

    3.3.6.  High Bit-rate AAC
    ...
    To code the maximum size of an AAC frame requires 13 bits.
    Therefore, in this configuration 13 bits are allocated to the AU-
    size, and 3 bits to the AU-Index(-delta) field.  Thus, each
AU-header
    has a size of 2 octets.

I have questions about that:

1. Does AU-header ALWAYS have fixed length of 13 bits for AU-size and 3
bits for AU-Index(-delta) field?

2. Does AU-header ALWAYS have fixed size of 2 octets?

Regards,
Ari Parkkila

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