New question #219566 on rohc:
https://answers.launchpad.net/rohc/+question/219566
Hi Didier Barvaux.
Thanks for the excellent explanation for FA 201484 .
However i have a doubt regarding the 3rd bullet.
I wanted to know the clarification in the context of decompressor , but not the
compressor.
/ Scenario "RND=0 and change to RND=1":
- at compressor: IPv4 + context(RND): 0 -> 1 => UOR-2-RTP + extension 3
with packet(RND)=1
- at decompressor: IPv4 + context(RND)=0 => UOR-2-ID
- when parsing extension 3, packet(RND)=1 is found, and packet is
re-parsed as UOR-2-RTP
Can you please highlight or share the reference in the source code where we
compute the ip_id correctly?
Here is my understanding:
a. when 1st packet received with RND bit 1, then we have to compute and store
the id_offset_ref as curr_ip_id - curr_SN
b. when 2nd packet is received with RND bit toggled to 0, then we hv to use the
id_ref computed at step 1 and compute the current ip_id as id_offset_ref +
curr_SN.
pls correct my algorithm if you think there are any mistakes.
Thanks
Sankar
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