[M4IF Technotes] Question on H.264

[Korada Ramkishor]

Hi,
 In H.264 CAVLC, the VLC tables are adapted depending on the magnitude of
previously coded coefficient. The dynamic range of high freq. coefficients
is less compared to low freq. coefficients. Hence, scanning backwards
results in more bit saving.
regards,
ramkishor
Architect - Video
Emuzed,
Bangalore
> -----Original Message-----
> From: technotes-admin   lists.m4if.org
> [mailto:technotes-admin   lists.m4if.org]On Behalf Of
> cloverleafland   mail.hongkong.com
> Sent: Tuesday, June 03, 2024 12:45 PM
> To: technotes   lists.m4if.org
> Subject: [M4IF Technotes] Question on H.264
>
>
> Dear all,
>
> Would any one tell me why the CAVLC in H.264 are scanning backwards (i.e
> from the higher frequency area to the lower)?
> Thanks in advance.
>
> Regards,
> Clover
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