Andreas Eversberg
6e2fd793ac
Increase compiler warnings and fix them
2024-04-05 21:51:41 +02:00
Andreas Eversberg
b613123291
Open sound device for capture or playback only, if full duplex is not required
2024-03-30 23:28:13 +01:00
Andreas Eversberg
a20637825a
Audio rework, new jitter buffer
...
Jitter buffer is now based on packets, not on samples. The frames are
dejittered in received form. After reading from jitter buffer, they are
decoded in correct order. If a frame is missing, it is concealed by
repeating audio.
2024-03-30 23:28:05 +01:00
Andreas Eversberg
2dcf10b1b1
Add metering information from osmo-cc to B-Netz and C-Netz
...
Untested!
2024-02-18 16:23:31 +01:00
Andreas Eversberg
3158c48365
Move from local to external osmo* libraries
...
src/libdebug -> libosmocore
src/libselect -> libosmocore
src/libtimer -> libosmocore
src/libosmocc -> libosmo-cc
src/libg711 -> libosmo-cc
2024-02-18 16:23:29 +01:00
Andreas Eversberg
9f662d309f
Add libselect to use select instead of polling all file descriptors
2023-01-21 15:15:52 +01:00
Andreas Eversberg
f4abbaf027
Make libtimer to be osmo_* compatible in some places
2023-01-21 15:15:39 +01:00
Andreas Eversberg
fd3b4dae50
FSK modulator improvements
...
1. Phase is now changed proportional to the time of the bit change, if
it happens somewhere between samples. The amount of phase change per
bit is now the same for all bits, no matter how many samples
currently lay inside this bit.
2. IIR filter is removed, because it causes distortions. A cosine shape
is now used to transit between phase change of F0 to F1 and vice
versa. This limits the spectrum. This filter is optional.
2022-12-16 12:43:19 +01:00
Andreas Eversberg
2b7efedc48
Refactoring jitter buffer
...
Features are:
* Packet based buffer
* Random in, first out
* Adaptive delay compensation (voice)
* Fixed delay (data, optionally MODEM/FAX)
* Interpolation of missing frames
* Any sample size
2022-10-23 16:56:27 +02:00
Andreas Eversberg
fd5ac46b86
B-Netz: Added more base stations, improved display of station list
2022-02-18 21:11:55 +01:00
Andreas Eversberg
423bc42429
Refactoring validity check and prefix processing of dialed number
...
Command line help shows how many digits and what prefixes can be dialed.
Giving a station ID via command line will be checked for being valid.
The number to call the mobile statione will be checked for being valid.
Prefixes that are defined for a nework will be removed from station ID
automatically.
Multiple station ID lengths are supported:
* C-Netz: 7 or 8 digits, depending on area code length
* A-Netz: 5 or 7 digits; number is truncated to last 5 digits.
* IMTS/MTS: 5 or 7 digits, depending on phone's selector switch.
2021-11-07 20:00:42 +01:00
Andreas Eversberg
922b4af362
Refactoring ASCCI-Art image printing
2021-11-07 08:55:46 +01:00
Andreas Eversberg
6fa74a1296
Refactor global variables for signal processing
...
These are:
device, sample rate, buffer, latency
Called now:
dsp_device, dsp_samplerate, dsp_buffer, dsp_latency
Call audio device:
call_device, call_samplerate, call_buffer
2021-10-24 06:25:10 +02:00
Andreas Eversberg
1b16029ac6
B-Netz: Improved detection of tone/frame
...
- Be less tollerant to levels when detcting tones.
- Squelch applies to tone detector also
2021-09-17 16:17:05 +02:00
Andreas Eversberg
3d9481177b
Config file path can be changed by command line option "--config <path>"
2021-03-20 11:19:37 +01:00
Andreas Eversberg
8c0a25f3b0
Added special strdup to liboptions, to prevent memory leaks for option strings
...
If you are doing memory leak debugging you don't want to see any leaks when
stopping the program.
2021-03-07 10:38:38 +01:00
Martin Hauke
a07764f0d9
Fixed typos in cli output and source code comments
2021-01-03 09:57:03 +01:00
Andreas Eversberg
2cb2d5f3ac
Replaced MNCC by OSMO-CC
2020-12-29 11:11:41 +01:00
Andreas Eversberg
d0d14e2acf
Add G.711 codec (alaw / ulaw conversion)
2020-12-29 11:11:41 +01:00
Andreas Eversberg
ed72e29dbb
Add tx-gain option
2020-10-29 07:39:27 +01:00
Andreas Eversberg
f132059edf
Add clock function to call interface
...
Implementations will have a clock to play tones, if no clock is
available from a transceiver.
2020-01-12 11:17:58 +01:00
Andreas Eversberg
150a77b69d
Add support for AM to libmobile and libsdr
2019-12-08 17:26:44 +01:00
Andreas Eversberg
c2f14834e5
Rename dbm0 (level) to speech (level)
...
In mobile communications we use speech level instead of milliwatts.
The deviation (FM) is always based on speech level, not on 1 milliwatt.
2019-12-08 17:24:36 +01:00
Andreas Eversberg
db1fee9698
minor code cleanup
2019-11-29 15:58:59 +01:00
Andreas Eversberg
445af0c0a2
Add filter switch to FSK modulator
2019-11-29 15:58:32 +01:00
Andreas Eversberg
6dcc8baad4
Split FSK modem code into separate modulator and demodulator
2019-11-29 15:58:32 +01:00
Andreas Eversberg
af4bcb1522
Remove useless debug lines
2019-08-26 21:10:33 +02:00
Andreas Eversberg
d6579c1244
Allow giving alphanumeric channels (Prepare for IMTS)
2019-08-26 21:10:20 +02:00
Martin Hauke
75765d49b7
Fixed many typos in output and source code comments
2019-07-15 21:14:52 +02:00
Andreas Eversberg
1eac087935
Output ASCII art image after all init functions (inside main_mobile.c)
2019-06-30 14:51:01 +02:00
Andreas Eversberg
8c6f78fd63
B-Netz: Make debug text more plausible
2019-05-30 18:17:55 +02:00
Andreas Eversberg
e16a2dd548
B-Netz: Add base stations of the Netherlands
2018-12-23 19:26:59 +01:00
Andreas Eversberg
32025915d5
Make run faster on ARM CPUs using fast math approximation
...
Use --fast-math to use sine/cosine tables and approximate atan2.
2018-11-10 15:18:28 +01:00
Andreas Eversberg
f4988297a6
B-Netz: Refactoring tone and quality detection
2018-06-05 07:09:51 +02:00
Andreas Eversberg
4e2ad7dae1
Fix compiler warning in conjunction with strncpy
2018-05-21 19:39:09 +02:00
Andreas Eversberg
3b81007210
Refactoring command line option handling
...
* Use own function to define and parse command line options
* Command line options can be defined by config file also
* --limesdr allows to auto-set required SDR option for LimeSDR
2018-05-21 19:39:09 +02:00
Andreas Eversberg
56f07a473d
B-Netz: Add dial sequence generator to emulate call setup from mobile phone
2018-02-15 08:00:20 +01:00
Andreas Eversberg
a5aee82e53
B-Netz: Some cleanups
2018-02-15 08:00:20 +01:00
Andreas Eversberg
6277753574
Minor debug message corrections
2018-02-15 08:00:18 +01:00
Andreas Eversberg
1ef1b93776
B-Netz: Give warning about possibly unsupported channels
2018-02-15 08:00:16 +01:00
Andreas Eversberg
6df0eb46cc
Fix compiler warnings
2018-02-15 08:00:15 +01:00
Andreas Eversberg
4cc33c5b0d
Make sound card support (Alsa) optional
2018-02-15 08:00:15 +01:00
Andreas Eversberg
0b129d3c7f
libdisplay: Removing dependency from libmobile
2018-02-15 08:00:14 +01:00
Andreas Eversberg
7c42d57d6e
B-Netz: Minor fixes to timings and debug messages
2017-12-05 11:10:46 +01:00
Andreas Eversberg
021c695883
Restructure: Fixing library linking order
2017-12-03 08:46:00 +01:00
Andreas Eversberg
1a341f6b4e
Restructure: Move debug from common code to 'libdebug'
2017-12-03 08:45:58 +01:00
Andreas Eversberg
016e72d6d7
Restructure: Move display from common code to 'libdisplay'
2017-12-03 08:45:55 +01:00
Andreas Eversberg
ab59a26a51
Restructure: Move mobile from common code to 'libmobile'
2017-12-03 08:45:54 +01:00
Andreas Eversberg
ed31a26eba
Restructure: Move sample from common code to 'libsample'
2017-12-03 08:45:48 +01:00
Andreas Eversberg
1650cc5ad2
Restructure: Move sdr from common code to 'libsdr'
2017-12-03 08:45:45 +01:00