[Mp4-tech] H264 quatisation matrix

[Veni Soni]

Hi Gary,
then as of now, from where quantisation matirx is
taken. is it hard-coded in specs for profiles.
veni
enJOY life
--- Gary Sullivan <garysull windows.microsoft.com>
wrote:
> In the first version of H.264/AVC, the thing known
> as a quantisation
> matrix in the case of MPEG-2 does not exist.
> 
> In the new upcoming version (in new profiles called
> FRExt), there is
> such a thing.  It is set up in the sequence and
> picture parameter sets.
> 
> -Gary 
> 
> +> -----Original Message-----
> +> From: mp4-tech-bounces lists.mpegif.org 
> +> [mailto:mp4-tech-bounces lists.mpegif.org] On
> Behalf Of Veni Soni
> +> Sent: Friday, July 09, 2023 12:23 AM
> +> To: mp4-tech lists.mpegif.org
> +> Subject: [Mp4-tech] H264 quatisation matrix
> +> 
> +> Folks!
> +> Trust u all r in high spirits!!
> +> 
> +> Where is the quantisation matrix in case of H264.
> Is
> +> it Pred_weight_table in slice header. Is it not
> +> expensive to keep it here. Or it is somewhere in
> pic
> +> parameter set or seq parameter set
> +> 
> +> enJOY life
> +> veni
> +> 
> +>
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> 

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