文件列表:

longmynd (0, 2020-04-22)
longmynd\patern.png (15177, 2020-04-22)
longmynd\.travis.yml (747, 2020-04-21)
longmynd\LICENSE (35147, 2020-04-21)
longmynd\Makefile (1546, 2020-04-21)
longmynd\beep.c (11021, 2020-04-21)
longmynd\beep.h (1172, 2020-04-21)
longmynd\errors.h (2775, 2020-04-21)
longmynd\fake_read.c (714, 2020-04-21)
longmynd\fifo.c (9292, 2020-04-21)
longmynd\fifo.h (1412, 2020-04-21)
longmynd\ftdi.c (22848, 2020-04-21)
longmynd\ftdi.h (1665, 2020-04-21)
longmynd\ftdi_usb.c (18345, 2020-04-21)
longmynd\ftdi_usb.h (1664, 2020-04-21)
longmynd\go.sh (578, 2020-04-21)
longmynd\longmynd.1 (3109, 2020-04-21)
longmynd\main.c (36334, 2020-04-21)
longmynd\main.h (4662, 2020-04-21)
longmynd\minitiouner.rules (474, 2020-04-21)
longmynd\nim.c (11025, 2020-04-21)
longmynd\nim.h (1799, 2020-04-21)
longmynd\stv0910.c (41108, 2020-04-21)
longmynd\stv0910.h (2703, 2020-04-21)
longmynd\stv0910_regs.h (138125, 2020-04-21)
longmynd\stv0910_regs_init.h (69756, 2020-04-21)
longmynd\stv0910_utils.c (6277, 2020-04-21)
longmynd\stv0910_utils.h (1443, 2020-04-21)
longmynd\stv6120.c (24277, 2020-04-21)
longmynd\stv6120.h (1611, 2020-04-21)
longmynd\stv6120_regs.h (6756, 2020-04-21)
longmynd\stv6120_utils.c (2309, 2020-04-21)
longmynd\stv6120_utils.h (1463, 2020-04-21)
longmynd\stvvglna.c (9622, 2020-04-21)
longmynd\stvvglna.h (1440, 2020-04-21)
longmynd\stvvglna_regs.h (4919, 2020-04-21)
longmynd\stvvglna_utils.c (3093, 2020-04-21)
... ...

# Longmynd [](https://travis-ci.org/myorangedragon/longmynd) An Open Source Linux ATV Receiver. Copyright 2019 Heather Lomond ## Dependencies sudo apt-get install libusb-1.0-0-dev libasound2-dev To run longmynd without requiring root, unplug the minitiouner and then install the udev rules file with: sudo cp minitiouner.rules /etc/udev/rules.d/ ## Compile make ## Run Please refer to the longmynd manual page via: ``` man -l longmynd.1 ``` ## Standalone If running longmynd standalone (i.e. not integrated with the Portsdown software), you must create the status FIFO and (if you plan to use it) the TS FIFO: ``` mkfifo longmynd_main_status mkfifo longmynd_main_ts ``` The test harness `fake_read` or a similar process must be running to consume the output of the status FIFO: ``` ./fake_read & ``` A video player (e.g. VLC) must be running to consume the output of the TS FIFO. ## Output The status fifo is filled with status information as and when it becomes available. The format of the status information is: $n,m Where: n = identifier integer of Status message m = integer value associated with this status message And the values of n and m are defined as: ID Meaning Value and Units ============================================================================================== 1 State 0: initialising 1: searching 2: found headers 3: locked on a DVB-S signal 4: locked on a DVB-S2 signal 2 LNA Gain On devices that have LNA Amplifiers this represents the two gain sent as N, where n = (lna_gain<<5) | lna_vgo Though not actually linear, n can be usefully treated as a single byte representing the gain of the amplifier 3 Puncture Rate During a search this is the pucture rate that is being trialled When locked this is the pucture rate detected in the stream Sent as a single value, n, where the pucture rate is n/(n+1) 4 I Symbol Power Measure of the current power being seen in the I symbols 5 Q Symbol Power Measure of the current power being seen in the Q symbols 6 Carrier Frequency During a search this is the carrier frequency being trialled When locked this is the Carrier Frequency detected in the stream Sent in KHz 7 I Constellation Single signed byte representing the voltage of a sampled I point 8 Q Constellation Single signed byte representing the voltage of a sampled Q point 9 Symbol Rate During a search this is the symbol rate being trialled When locked this is the symbol rate detected in the stream 10 Viterbi Error Rate Viterbi correction rate as a percentage * 100 11 BER Bit Error Rate as a Percentage * 100 12 MER Modulation Error Ratio in dB * 10 13 Service Provider TS Service Provider Name 14 Service TS Service Name 15 Null Ratio Ratio of Nulls in TS as percentage 16 ES PID Elementary Stream PID (repeated as pair with 17 for each ES) 17 ES Type Elementary Stream Type (repeated as pair with 16 for each ES) 18 MODCOD Received Modulation & Coding Rate. See MODCOD Lookup Table below 19 Short Frames 1 if received signal is using Short Frames, 0 otherwise (DVB-S2 only) 20 Pilot Symbols 1 if received signal is using Pilot Symbols, 0 otherwise (DVB-S2 only) 21 LDPC Error Count LDPC Corrected Errors in last frame (DVB-S2 only) 22 BCH Error Count BCH Corrected Errors in last frame (DVB-S2 only) 23 BCH Uncorrected 1 if some BCH-detected errors were not able to be corrected, 0 otherwise (DVB-S2 only) 24 LNB Voltage Enabled 1 if LNB Voltage Supply is enabled, 0 otherwise (LNB Voltage Supply requires add-on board) 25 LNB H Polarisation 1 if LNB Voltage Supply is configured for Horizontal Polarisation (18V), 0 otherwise (LNB Voltage Supply requires add-on board) ### MODCOD Lookup ### DVB-S ``` 0: QPSK 1/2 1: QPSK 2/3 2: QPSK 3/4 3: QPSK 5/6 4: QPSK 6/7 5: QPSK 7/8 ``` #### DVB-S2 ``` 0: DummyPL 1: QPSK 1/4 2: QPSK 1/3 3: QPSK 2/5 4: QPSK 1/2 5: QPSK 3/5 6: QPSK 2/3 7: QPSK 3/4 8: QPSK 4/5 9: QPSK 5/6 10: QPSK 8/9 11: QPSK 9/10 12: 8PSK 3/5 13: 8PSK 2/3 14: 8PSK 3/4 15: 8PSK 5/6 16: 8PSK 8/9 17: 8PSK 9/10 18: 16APSK 2/3 19: 16APSK 3/4 20: 16APSK 4/5 21: 16APSK 5/6 22: 16APSK 8/9 23: 16APSK 9/10 24: 32APSK 3/4 25: 32APSK 4/5 26: 32APSK 5/6 27: 32APSK 8/9 28: 32APSK 9/10 ``` ## License Longmynd is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. Longmynd is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with longmynd. If not, see .

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