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- Log -----------------------------------------------------------------
http://cgit.osmocom.org/libosmocore/commit/?id=677dfd3c807793b4e0146036eb77ebca4a489323
commit 677dfd3c807793b4e0146036eb77ebca4a489323
Author: Philipp Maier <pmaier at 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=151c695e5ae5f672fe30064d3bd9b984a4d664ba
commit 151c695e5ae5f672fe30064d3bd9b984a4d664ba
Author: Philipp Maier <pmaier at 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=09cfc633ff24b4f1871c397a88e29c55c323de0f
commit 09cfc633ff24b4f1871c397a88e29c55c323de0f
Author: Philipp Maier <pmaier at 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=d6ca3f84d9b821cf056d0eddb8a30092ba10181b
commit d6ca3f84d9b821cf056d0eddb8a30092ba10181b
Author: Philipp Maier <pmaier at 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=ccb46e2e5ce04f686edb7f963ebc2880f0ae4729
commit ccb46e2e5ce04f686edb7f963ebc2880f0ae4729
Author: Philipp Maier <pmaier at sysmocom.de>
Date: Thu Jun 1 12:11:56 2017 +0200
gsm0808: add speech codec type constants
The codec type to be set in member type in struct gsm0808_speech_codec
has its own coding scheme to reference the used codec types. This patch
declares an enum with valid speech codec types.
Change-Id: Icaa768071d4364e671bc7e6d48b82d1f07f93f93
http://cgit.osmocom.org/libosmocore/commit/?id=1a93a0fd8948ad16606790430e38ccb65bc073cf
commit 1a93a0fd8948ad16606790430e38ccb65bc073cf
Author: Philipp Maier <pmaier at 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
http://cgit.osmocom.org/libosmocore/commit/?id=130406a5d4df598b6eed735318ecf1f5a39ad9b8
commit 130406a5d4df598b6eed735318ecf1f5a39ad9b8
Author: Philipp Maier <pmaier at sysmocom.de>
Date: Wed May 31 15:07:26 2017 +0200
gsm0808: update permitted speech constants
3GPP TS 48.008 specifies two new half rate speech modes and two
new full rate speech modes. This patch adds the matching constants
to enum gsm0808_permitted_speech
Change-Id: Id426f7dbffe46450d0cf6df20236a9e68f065f8d
http://cgit.osmocom.org/libosmocore/commit/?id=93bd0d8d265825cd1be79359b925b3dacc7d0120
commit 93bd0d8d265825cd1be79359b925b3dacc7d0120
Author: Philipp Maier <pmaier at sysmocom.de>
Date: Wed May 31 17:22:03 2017 +0200
gsm0408: update bearer capability speech version
3GPP TS 24.008 specifies two new speech versions for half rate and
two new speech modes for full rate. This patch adds the relevant
constants to enum gsm48_bcap_speech_ver in gsm_04_08.h
Change-Id: Id2835384c855f924332d38f01c73bd1cfdb62549
-----------------------------------------------------------------------
Summary of changes:
Doxyfile.coding.in | 2 +-
include/Makefile.am | 1 +
include/osmocom/coding/gsm0503_coding.h | 46 ++--
include/osmocom/coding/gsm0503_interleaving.h | 20 +-
include/osmocom/coding/gsm0503_mapping.h | 16 +-
include/osmocom/coding/gsm0503_parity.h | 10 +
include/osmocom/coding/gsm0503_tables.h | 10 +
include/osmocom/gsm/protocol/gsm_04_14.h | 101 +++++++
src/coding/gsm0503_coding.c | 375 +++++++++++++++++++++-----
src/coding/gsm0503_interleaving.c | 127 ++++++++-
src/coding/gsm0503_mapping.c | 19 +-
src/coding/gsm0503_parity.c | 40 +--
src/coding/gsm0503_tables.c | 14 +
src/gsm/Makefile.am | 2 +-
src/gsm/gsm0414.c | 20 ++
src/gsm/libosmogsm.map | 2 +
16 files changed, 681 insertions(+), 124 deletions(-)
create mode 100644 include/osmocom/gsm/protocol/gsm_04_14.h
create mode 100644 src/gsm/gsm0414.c
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An utility library for Open Source Mobile Communications