[M4IF Technotes] Profile@Level Visual Image size

[Peter Haighton]

Hello Arcin,
The typical value means that this is what most implementations would
probably use SP   L1 for, but you can use other strange and wonderful video
shapes if desired.  For example 352x72 but I don't of an application that
would.
So basically in real world scenarios you are correct that SP   L1 would be
used for sizes up to QCIF.
Peter
-----Original Message-----
From: technotes-admin   lists.m4if.org
[mailto:technotes-admin   lists.m4if.org]On Behalf Of Arcin Bozkurt -
Archie
Sent: Friday, August 17, 2023 8:00 AM
To: technotes   lists.m4if.org
Subject: [M4IF Technotes] Profile   Level Visual Image size
MPEG-4 is able to handle any size image with the information taken from
video_object_layer_width and
video_object_layer_height.
Does Simple Profile @L1 or L2 or L3 bring any restrictions to this?
Annex N.1 (definition of Visual Profiles   Levels), specifies a "typical"
size which is for example QCIF for  Simple Profile @ L1. Does this mean
that SP   L1 support image sized UP TO QCIF??  This is in line with the
MAXimum 99 MB per VOP restriction of SP   L1.
Can you please clarify this issue?
Arcin Bozkurt
Lumic Electronics Inc.
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