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351 Commits

Author SHA1 Message Date
Vasil Velichkov 06321a39e0 Improve voice boundary detection 
Decode Alerting and Progress messages and if the in-band information
flag is set start decoding the voice
 2018-12-29 00:52:05 +01:00
Vasil Velichkov 7f259fdb68 Add TCH/H decoder block with AMR multirate support 
Add new TCHH channel mode
Add two new optional arguments

    -m CHAN_MODE, --mode=CHAN_MODE
                        Channel mode. Valid options are 'BCCH' (Non-combined
                        C0), 'BCCH_SDCCH4'(Combined C0), 'SDCCH8' (Stand-alone
                        control channel) 'TCHF' (Traffic Channel, Full rate),
                        'TCHH' (Traffic Channel, Half rate)

    --sub-channel=TCH_H_CHANNEL
                        TCH/H sub-channel. [default=0]
    --multi-rate=MULTI_RATE
                        The MultiRrate configuration element from the
                        Assigment Command message. Example: 28111a40. See 3GPP
                        TS 44.018 - 10.5.2.21aa MultiRate configuration

Example:
    grgsm_decode -m TCHH --sub-channel 0 --multi-rate 2811 -o voice.amr ...
 2018-12-29 00:52:05 +01:00
Vasil Velichkov 1828a315a8 Move HR demapping into a separate block 2018-12-29 00:52:05 +01:00
Andrew Artyushok fbcee39107 Add HR demapping 2018-12-29 00:52:05 +01:00
Piotr Krysik 003c8720f5 transmitter/txtime_setter: fix error print syntax error 2018-12-28 22:36:40 +01:00
David Holm 17852163ad lib/trx, lib/transmitter: Include grgsm/endian.h 
MacOS X does not have endian.h and the build will fail unless
grgsm/endian.h is used.
 2018-12-28 18:55:12 +01:00
Vadim Yanitskiy dc342dc88a trx/txtime_setter: print error if reference fn is missing 
Change-Id: I2a6e3f41b6fe79b92d85ff98bc2cd9afd9bdc568
 2018-12-21 06:55:11 +07:00
Vadim Yanitskiy b73b4a8637 trx/txtime_setter: reduce code nesting in process_txtime_of_burst() 
Change-Id: I5c334e16d6b28a5e32cd62a177ad56bfc8e748ee
 2018-12-21 06:50:44 +07:00
Vasil Velichkov 89585b374b burst_file_source: Fix reading longer bursts 
- Read bursts with pmt::deserialize directly from the std::filebuf
- Remove the unused unserialized variable
- Add tests

Since df978693 when the rx_time tags are present in the incomming stream
the gsm receiver adds fm_time to the burst's PMT and the bursts that
burst file sink writes becomes longer because of the additional field.

The burst file source block was expecting all burst to be 147 bytes long
and reading files with longer bursts was failing with an unhandled exception.

terminate called after throwing an instance of 'pmt::exception'
thread[thread-per-block[5]: <block dummy_burst_filter (2)>]: pmt_cdr: wrong_type : #f
  what():  pmt::deserialize: malformed input stream, tag value = : 115

Change-Id: I989b0d6a6b214088b7880e5cbf7bb6725492dbfc
 2018-09-13 09:35:28 +00:00
Vasil Velichkov 75ae9cc361 Format the output into ostringstream and then write it at once. 
This fixes the garbled output when multiple printers are used in a
flowgraph.

closes #255
closes #420

Change-Id: I1012ed26371b4c67163545652f0a1ce0f576af9e
 2018-09-11 09:12:02 +00:00
Vadim Yanitskiy 5394c6012d gsm_trx_burst_if: allow to customize the bind address 
Pleviously remote address for DATA interface was also used as the
bind address, what is definitely wrong. Let's change the API a bit
in order to allow one to specify a custom bind address.

Change-Id: I6e5f7b7119ac454217b8dd04f9ee0dd3b23972b6
 2018-08-10 16:38:59 +07:00
Piotr Krysik ac140210c9 Simplify cmake checks related to libosmocore 2018-06-19 12:07:28 +02:00
Piotr Krysik c711e97af1 Separating libosmogsm from the rest 2018-06-18 15:13:13 +02:00
Piotr Krysik 2779e62094 Fix includes after moving trx_burst_if 2018-05-06 22:23:06 +02:00
Piotr Krysik 993055342d Moving trx burst interface to trx directory 
and to new 'Transceiver' cathegory in gnuradio-companion
 2018-05-05 12:38:11 +02:00
Piotr Krysik 2471052cfe Merge branch 'fixeria/trx' of https://github.com/axilirator/gr-gsm into fixeria_trx 
# Resolved conflicts:
#	apps/grgsm_trx
#	python/trx/radio_if.py
#	swig/grgsm_swig.i
 2018-04-17 09:10:33 +02:00
Piotr Krysik 8a8d41a583 Merge branch 'ptrkrysik/trx' into development 2018-04-16 22:21:29 +02:00
Piotr Krysik e24860f9c0 Reformatting control_channels_decoder 2018-04-06 15:22:51 +02:00
Vasil Velichkov 924d1873da Fix an assert in ViterbiR2O4::decode 
The table length was wrong becuase matchCostTable is a float pointer and
not an array since 792330777d

python2.7: /home/user/gr-gsm/lib/decoding/openbts/ViterbiR204.cpp:288: virtual void ViterbiR2O4::decode(const SoftVector&, BitVector&): Assertion `match-matchCostTable<(float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1' failed.

 (gdb) f 4
 #4  0x00007fffdff820c3 in ViterbiR2O4::decode (this=0x5555563bbdf0, in=..., target=...)
     at /home/vasko/sources/gr-gsm/gr-gsm/lib/decoding/openbts/ViterbiR204.cpp:288
 288				assert(match-matchCostTable<(float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1);
 (gdb) p match-matchCostTable
 $1 = 2
 (gdb) p (float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1
 $2 = 1
 (gdb) p (float)sizeof(matchCostTable)/sizeof(matchCostTable[0])
 $3 = 2
 (gdb) p sizeof(matchCostTable)
 $4 = 8
 2018-04-06 15:18:26 +02:00
Vasil Velichkov bc2a23e0e7 Check the gsm0503_xcch_decode return value 
- Discard the message when gsm0503_xcch_decode returns -1
- Add automated decrypt test

See https://groups.google.com/d/msg/gr-gsm/9nOkIdrGOck/qTZh47McCQAJ
 2018-03-30 22:34:52 +02:00
Piotr Krysik c097ce73c5 Added block for extracting assignment commands 2018-03-05 13:16:32 +01:00
Piotr Krysik b1e67fe527 Define __attribute__ and __deprecated__ on MSWin 2018-03-04 22:09:23 +01:00
Piotr Krysik 86c9164000 Change buildsystem message on libosmocore not being found 2018-03-04 22:08:52 +01:00
Piotr Krysik 1a5e87ea1a Conditional compilation of local libosmocore depending if there is or is not libosmocore installation present on the system 2018-03-04 19:36:24 +01:00
Piotr Krysik d8a576618d Fixing warning caused by local libosmocore version 2018-03-04 19:35:00 +01:00
Piotr Krysik daa26e80be Fixing 'free' position 2018-03-03 20:04:13 +01:00
Piotr Krysik 1fd7cfb47e Removing part that causes problems with 'make test' 2018-02-28 14:58:10 +01:00
Piotr Krysik b24beebaf9 Adding include to have 'bool' type 2018-02-28 10:11:08 +01:00
Piotr Krysik 4cd494bbf8 Slight changes to CMake file and libosmocoding file (include change) 2018-02-28 10:08:38 +01:00
Piotr Krysik 70f549abae Merge remote-tracking branch 'origin/quick-hack' into grgsm_on_win 2018-02-27 14:46:18 +01:00
Piotr Krysik b3bd68ed8f Commenting out some problematic and not apsolutely necessary stuff from libosmocore 2018-02-27 14:45:14 +01:00
Piotr Krysik 813fedd36e Fixing types in gsm0503_mapping 2018-02-27 14:45:14 +01:00
Piotr Krysik 1aede38857 Moving gsm0503.h to gsm subdir 2018-02-27 14:45:14 +01:00
Piotr Krysik 9e2e8358a3 Portability fix: Adding local partial copy of libosmocore (TODO: minimize it) 2018-02-27 14:45:14 +01:00
Piotr Krysik eb81b03c02 Portability fix: Replaced problematic includes 2018-02-27 14:45:14 +01:00
Piotr Krysik 15219abe00 sch.c: Changed include from local to global 2018-02-27 14:45:14 +01:00
Piotr Krysik 3b11689d22 Change ints to size_t 2018-02-27 14:45:14 +01:00
Piotr Krysik ebe95fc7b6 Fix: replaced u_int32 type with uint32 2018-02-27 14:45:14 +01:00
Piotr Krysik 792330777d Portability fix: replacing tables of variable size with memory allocations 2018-02-27 14:45:14 +01:00
Piotr Krysik 8bed612c39 Hack: commented out linking with libosmocore libraries 
Portability fix: If on windows link wsock32 and ws2_32 libraries
 2018-02-27 14:45:14 +01:00
Vadim Yanitskiy 0123232305 txtime_setter_impl: fix wrong time_hint reference 2017-12-09 20:16:44 +07:00
Vadim Yanitskiy 0aafe2856d Implement the 'burst_to_fn_time' block in C++ 2017-12-04 01:48:43 +07:00
Vadim Yanitskiy 0be5e5bcc8 preprocess_tx_burst: fix the output message 
During the code refactoring (4bd990b), the first part of the
output message was accidently dropped. Let's fix this.
 2017-11-30 13:08:30 +01:00
Piotr Krysik e3f34d9bca test_ab: Changed to non-inverted AB 2017-11-30 12:50:37 +01:00
Piotr Krysik ccd9ed9cab Going back to previous coding style - without returns 2017-11-30 12:48:01 +01:00
Vadim Yanitskiy 73857235f0 preprocess_tx_burst: fix the output message 
During the code refactoring (4bd990b), the first part of the
output message was accidently dropped. Let's fix this.
 2017-11-30 06:28:48 +07:00
Vadim Yanitskiy 2ce294219c txtime_setter: clean up and simplify source code 
This change formats the block implementation source code
according to a mix of GNURadio and the Kernel coding styles.

The main changes are:

  - Limit line length to 80 columns
  - Preffer the opposite conditions
  - Do not use curly braces for single line loops / conditions

For more details, see:

https://wiki.gnuradio.org/index.php/Coding_guide_impl
https://www.kernel.org/doc/html/v4.10/process/coding-style.html
 2017-11-29 23:11:14 +01:00
Vadim Yanitskiy 70bec2039a preprocess_tx_burst: clean up and simplify source code 
This change formats the block implementation source code
according to a mix of GNURadio and the Kernel coding styles.

The main changes are:

  - Limit line length to 80 columns
  - Preffer the opposite conditions
  - Do not use curly braces for single line loops / conditions

For more details, see:

https://wiki.gnuradio.org/index.php/Coding_guide_impl
https://www.kernel.org/doc/html/v4.10/process/coding-style.html
 2017-11-29 23:11:14 +01:00
Piotr Krysik 2344483869 Added a block for generating Access Bursts 2017-11-29 16:39:22 +01:00
Piotr Krysik ba8b0a95d3 Fix: protections in txtime_setter against late bursts and bursts in too distant future. 
Fixing bursts in too distant future is a bit problematic and better way than just looking at tx_time difference from current time would be desirable.
This way of fixing that issue can still cause that tx part will do nothing for about 10 seconds (after switching frequency from a BTS1 (with fn1) to BTS2 (with fn2) when fn1>fn2).
 2017-11-11 11:19:26 +01:00