21 Jun
2017
21 Jun
'17
11:19 p.m.
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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/libosmocore/commit/?id=b25c20cf2af50676728fba25a5ac…
commit b25c20cf2af50676728fba25a5ac1c8392ff2edd
Author: Philipp Maier <pmaier(a)sysmocom.de>
Date: Fri Jun 2 13:49:16 2017 +0200
gsm0808: add function to extrapolate speech codec
The contents of the speech codec element (struct gsm0808_speech_codec),
that is also used in the speech codec list element (struct
gsm0808_speech_codec_list) can be extrapolated directly from the
permitted speech parameter in the channel type field (struct
gsm0808_channel_type) when full AoIP with compressed speech via
RTP/UDP/IP is assumed and when the codec configuration on the air
interface exactly matches the codec configuration on the IP backhaul.
This patch adds a function that can be used as a helper to fill
out spech codec fields by only giving a permitted speech parameter
as input.
Change-Id: I257c972e9fdf0dfe940a8d483447085bd62e50a2
http://cgit.osmocom.org/libosmocore/commit/?id=b6d96ea64a00937ab7d018b5d829…
commit b6d96ea64a00937ab7d018b5d8294546e95637c3
Author: Philipp Maier <pmaier(a)sysmocom.de>
Date: Fri Jun 2 13:22:34 2017 +0200
gsm0808: add function to translate perm speech to speech codec type
The permitted speech field used in channel type element (struct
gsm0808_channel_type) uses a different representation as
the type field in the speech codec element (struct
gsm0808_speech_codec)
This patch adds a function to convert from permitted speech to
speech codec type.
Change-Id: Ib26a9c20864459b2baaa04f49b6e7902ba44b7cb
http://cgit.osmocom.org/libosmocore/commit/?id=1bf0a5b77167dd6b5ad145d016c8…
commit 1bf0a5b77167dd6b5ad145d016c8740cba286f82
Author: Philipp Maier <pmaier(a)sysmocom.de>
Date: Fri Jun 2 11:25:28 2017 +0200
gsm0808: add default speech codec configuration
In an AoIP scenario, the speech codec list field specifies the
codecs used in the RTP interface. This patch adds a table
with default codec configurations that match the codec
configurations that are also used on the air interface.
Change-Id: I9dc0165d76a022b2c1b7418bc3133407e61b7261
http://cgit.osmocom.org/libosmocore/commit/?id=a693e6ebd1972f820183d39f750b…
commit a693e6ebd1972f820183d39f750bba604a262305
Author: Philipp Maier <pmaier(a)sysmocom.de>
Date: Thu Jun 1 17:11:19 2017 +0200
gsm0808: fix AoIP speech codec element parser/generator
The implementation of the parser/generator for the speech codec
information element slightly wrong, making it impossible to use
it properly.
(See also: 3GPP TS 48.008, 3.2.2.103)
Change-Id: Idabb0f9620659557672e1c6b90c75481192e5c89
http://cgit.osmocom.org/libosmocore/commit/?id=f1282a6bfc0b3bc8e3fa05d1eaac…
commit f1282a6bfc0b3bc8e3fa05d1eaac9745554a47af
Author: Philipp Maier <pmaier(a)sysmocom.de>
Date: Fri Apr 28 11:05:44 2017 +0200
gsm0808: fixup length check of the element decoder functions
The length check of the decoder functions is not entirely
correct. The check also checks for values below zero,
which does not make sense, since the length is encoded
as uint8_t.
For some elements a minimum length is known (in most cases
this is 1, so checking for zero is sufficient but in some
cases (e.g. channel type) the spec mentions a minimum and
maximum length. This is now also reflected in the code.
Change-Id: I78bc887f68d1963d28c6fcd631ac20ccd893d6d6
-----------------------------------------------------------------------
Summary of changes:
TODO-RELEASE | 1 +
include/osmocom/gsm/protocol/gsm_04_08.h | 22 +++++++--------
include/osmocom/gsm/protocol/gsm_08_08.h | 46 ++++++++++++++++----------------
include/osmocom/vty/command.h | 4 +--
tests/lapd/lapd_test.c | 2 +-
5 files changed, 38 insertions(+), 37 deletions(-)
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An utility library for Open Source Mobile Communications