Attention is currently required from: fixeria.
falconia has posted comments on this change. (
https://gerrit.osmocom.org/c/libosmo-abis/+/37287?usp=email )
Change subject: trau_rtp_conv: add support for HRv1 in 8k format
......................................................................
Patch Set 2:
(2 comments)
File src/trau/trau_rtp_conv.c:
https://gerrit.osmocom.org/c/libosmo-abis/+/37287/comment/0892ab9b_6b4aea97
PS2, Line 258: if (xc_bits[i])
: sum++;
Can we do `sum += xc_bits[i]` here? Theoretically,
this should be better in terms of performance. […]
Given that the input bits come
from other Osmocom library layers (osmo_i460 demux followed by trau_sync module), I would
say that requiring each ubit_t to be strictly either 0 or 1 (for performance benefit) is
fine. I'll change the code to do direct summation like you suggested.
https://gerrit.osmocom.org/c/libosmo-abis/+/37287/comment/9ae58d6e_fe0a6172
PS2, Line 669: tf->xc_bits[0] = 0;
cosmetic: maybe use designated initializers to make it
shorter / more readable? […]
Shorter != more readable in this case, I would argue.
The way I have each bit explicitly broken out, with a comment on xc_bits[5] saying that it
is odd parity, makes it much easier IMO to visually verify correctness against the
official word of the spec.
However, I just thought of another way to make the code shorter, yet retain direct
correspondence (perhaps even more direct) to how the table appears in the TS 48.061 spec -
see the next patchset iteration.
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Gerrit-Project: libosmo-abis
Gerrit-Branch: master
Gerrit-Change-Id: I8ee01b73360501ca380a8695cbc7070ceaaba1be
Gerrit-Change-Number: 37287
Gerrit-PatchSet: 2
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Gerrit-Reviewer: fixeria <vyanitskiy(a)sysmocom.de>
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