[Mp4-tech] CAVLC, h.264

[Gary Sullivan]

If I recall correctly, it is not too difficult to figure out the maximum
level value, based on the length of the code available to represent it.
Some range limitations are also imposed indirectly through the range of
values allowed in the transform and scaling processes.
I don't think a lot of variation in level values is a problem.  It can
certainly happen, but I don't think there is any difficulty in
representing the values.  I suspect that you're reading something a
little bit incorrectly.  If you can't figure it out from the text, it
might be helpful to step through a few examples in the encoder reference
software.
Best Regards,
-Gary 
+> -----Original Message-----
+> From: mp4-tech-bounces lists.mpegif.org 
+> [mailto:mp4-tech-bounces lists.mpegif.org] On Behalf Of Sastry_KRK
+> Sent: Monday, August 30, 2023 3:06 AM
+> To: mp4-tech lists.mpegif.org
+> Subject: [Mp4-tech] CAVLC, h.264
+> 
+> we have a couple of queries regarding CAVLC. ( Ref residual 
+> block CAVLC
+> cyntax, h.264 )
+> 
+> 1. what is the maximum value level(i) could take  
+> 
+> 2. if the pattern has lot of variations in level(i) say (...,
+> 10,1,-8,7,15,1,9 ... ). if suffix length of 3 suits for 
+> element 10 , the
+> next smaller values could not be properly encoded as there 
+> is no way to
+> reduce suffix length ( threshold ).  
+>    A. is our understanding corect.  
+>    B . does such type of pattern is possible   
+> 
+> regards
+> 
+> KRK Sastry
+> 
+> *************************************************************
+> ************* 
+> This email (including any attachments) is intended for the 
+> sole use of the
+> intended recipient/s and may contain material that is 
+> CONFIDENTIAL AND
+> PRIVATE COMPANY INFORMATION. Any review or reliance by 
+> others or copying or
+> distribution or forwarding of any or all of the contents in 
+> this message is
+> STRICTLY PROHIBITED. If you are not the intended recipient, 
+> please contact
+> the sender by email and delete all copies; your cooperation 
+> in this regard
+> is appreciated.
+> *************************************************************
+> *************
+> _______________________________________________
+> NOTE: Please use clear subject lines for your posts. Include 
+> [audio, [video], [systems], [general] or another 
+> apppropriate identifier to indicate the type of question you have.
+> 
+> Note: Conduct on the mailing list is subject to the 
+> Antitrust guidelines found at 
+> http://www.mpegif.org/public/documents/vault/mp-out-30042-Ant
+> itrust.php
+>