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If a network element that receives call leg A UL and is responsible
for preparing leg B DL receives a GSM-HR SID frame whose SID field
is not all 1s but which is marked as valid SID by out-of-band means
(TRAU-UL frame control bits or the FT field in RFC 5993 ToC octet),
this SID frame should be rejuvenated (SID field reset to all 1s)
prior to retransmission on call leg B DL. Provide a function
that performs this operation.
Related: OS#6036
Change-Id: Iebc0863ffcc3f8f25aeb54d4b14fac0487bc2bbb
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According to TS 101 318, section 5.2.2, a SID frame is identified
by a SID codeword consisting of 79 bits (r34..r112) which are all 1.
Given that there are no gaps in the codeword, we don't really need
to use bitvec_get_bit_pos() and check each field individually.
This brings additional complexity and negatively affects performance.
Instead, let's use bitvec_get_bit_pos() to check all bits in a row.
Change-Id: I678f8ff92317fe87f1aca511a3a062ad898e55cc
Related: SYS#5853
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Remove the paragraph about writing to the Free Software Foundation's
mailing address. The FSF has changed addresses in the past, and may do
so again. In 2021 this is not useful, let's rather have a bit less
boilerplate at the start of source files.
Change-Id: I5050285e75cf120407a1d883e99b3c4bcae8ffd7
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Let's fix some erroneous/accidential references to wrong license,
update copyright information where applicable and introduce a
SPDX-License-Identifier to all files.
Change-Id: I39af26c6aaaf5c926966391f6565fc5936be21af
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Considering the various styles and implications found in the sources, edit
scores of files to follow the same API doc guidelines around the doxygen
grouping and the \file tag.
Many files now show a short description in the generated API doc that was so
far only available as C comment.
The guidelines and reasoning behind it is documented at
https://osmocom.org/projects/cellular-infrastructure/wiki/Guidelines_for_API_documentation
In some instances, remove file comments and add to the corresponding group
instead, to be shared among several files (e.g. bitvec).
Change-Id: Ifa70e77e90462b5eb2b0457c70fd25275910c72b
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Especially for short descriptions, it is annoying to have to type \brief for
every single API doc.
Drop all \brief and enable the AUTOBRIEF feature of doxygen, which always takes
the first sentence of an API doc as the brief description.
Change-Id: I11a8a821b065a128108641a2a63fb5a2b1916e87
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failure to do so would prevent the compiler from catching
inconsistencies between declaration and definition.
Change-Id: I88617c97adcff328292e501fd5d254eeae96a660
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Change-Id: If779cce63f06a18d4f3b0cb3d6dd7a99aa52a646
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Add functions which check if given FR or HR frame (packed in RTP)
contains SID (SIlence Descriptor) and corresponding tests.
Related: OS#22
Change-Id: I4051e3c0d4fb9ee93d7e9e0ef4abaf9f18e227ca
Reviewed-on: https://gerrit.osmocom.org/160
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
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Seems the script I used to parse those had a bug where range of
bits in the 'decreasing' direction ( like 6..0 ) were not processed
properly.
Thanks to Andreas for noticing this !
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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When declaring them constant, they are written on the .rodata section
instead of .data, which means that they can be mapped directly from
disk to memory.
Signed-off-by: Diego Elio Pettenò <flameeyes@flameeyes.eu>
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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