[M4IF Technotes] question on error resilience for simple prof ile

[Rob Koenen]

I am not aware of such references offhand myself, but I am not in the field
of
mobile video coding. For best results, you should use all the tools,
so that you can resynch after errors, can decode backwards until you hit the
error, and can still use the motion information if there are errors
elsewhere.
There is a lot of literature on error resilience in video coding, e.g. check
the IEEE Transactions on Circuits and Systems for Video Technology.
Rob
-----Original Message-----
From: Chen, Kenny [mailto:kenny.chen   intel.com]
Sent: Monday, June 10, 2023 19:28
To: Rob Koenen; M4IF FORUM
Subject: RE: [M4IF Technotes] question on error resilience for simple prof
ile
Rob,
Thanks for your support!
Say, we want to use the error resilience for wireless channel.  There are
still three modes to be supported in MPEG4, and each seems quite different.
Is there any reference, in which condition, which mode should be enabled?
Or all the three modes should be enabled for mobile use?
Thanks
Ken
-----Original Message-----
From: Rob Koenen [mailto:rkoenen   intertrust.com]
Sent: 2002?6?11? 1:18
To: 'Chen, Kenny'; M4IF FORUM
Subject: RE: [M4IF Technotes] question on error resilience for simple prof
ile
Using the error resilience tools is always optional,
because behavior in the face of errors is not 
normatively defined.
The tools are in Simple Profile because Simple was
designed for mobile use. 
Other people than me will be able to explain that 
implementation of these tools does not need to 
be too onerous.
Rob
-----Original Message-----
From: Chen, Kenny [mailto:kenny.chen   intel.com]
Sent: Monday, June 10, 2023 1:32
To: M4IF FORUM
Subject: [M4IF Technotes] question on error resilience for simple profile
Hi,
In ISO/IEC 14496-2:2001(E), Table 9-1, for simple profile, all three mode of
error resilience should be enabled. (slice resynchronization, data
partitioning, RVLC).  This will add much more complexity for the decoder.  I
don't understand why should them be included only for simple profile?
That's to say, is that every decoder which claim to support simple profile
should support all error resilience modes?
Regards
Ken 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: /pipermail/mp4-tech/attachments/20020611/37960747/attachment.html