José Miguel Sánchez García
947d2db4b8
Implement sndio backend
2018-01-27 16:32:52 +00:00
Sebastien Van Cauwenberghe
9a1e8769ab
Add EOT message
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When program keeps running, the ### EOT message allows the user
to know that the stdin has been fully transmitted.
2017-02-16 14:05:31 -08:00
Kamal Mostafa
c2e4d9e1c4
Do not emit 0.5 sec flush for audio file output
2016-04-17 09:49:27 -07:00
Chris Osborn
513a11d454
Limit carrier/idle generation for input with delays
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For non-interactive output (writing to an audio file), generate the
idle output carrier for same duration that the input is idle. Makes
this case generate an output .wav file of just over 1 second duration:
{ echo hello; sleep 1; echo world; } | minimodem --tx -f /tmp/xx.wav 300
2016-04-17 08:49:36 -07:00
Kamal Mostafa
84b2406b97
Rename tv_idletimeout (no functional change)
2016-04-17 08:43:32 -07:00
Kamal Mostafa
ad83ef5df3
Refactor emit idle tone (no functional change)
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Clean up the "emit idle tone" code, which should never have involved
tx_leader_bits_len (that was a copy-paste laziness).
"Emit idle tone" simply generates the idle tone for a hardcoded period
of time now codified as 'idle_tone_usec' and set to 1/25 of a second
(to match the existing behavior).
2016-04-13 09:41:20 -07:00
Colin Ian King
d6a616fff8
Use %td for ptrdiff_t printf format specifier
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Signed-off-by: Colin Ian King <colin.king@canonical.com>
2016-03-21 12:42:29 -07:00
Colin Ian King
632e92f1ae
Use %u printf format specifier for unsigned int
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Signed-off-by: Colin Ian King <colin.king@canonical.com>
2016-03-21 12:42:29 -07:00
Kamal Mostafa
3a8d490074
fix harmless strncasecmp off-by-one
2016-02-20 07:02:09 -08:00
Kamal Mostafa
f801ae3f28
update copyright dates 2016
2016-02-19 12:29:58 -08:00
Rodrigo Menezes
f48257ac59
TTY/TDD support
2016-01-20 10:07:21 -08:00
Kamal Mostafa
2b5e2c6a40
Do not enable tx-carrier for non-interactive --file sessions
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The logic that determined whether to 'block_input' was backwards with
respect to non-interactive --file sessions, such that using --file
*enabled* the tx-carrier behavior when it should have disabled it.
This went unnoticed because on reasonably fast systems, reading the
input data from the file never induce the timeout anyway -- only very
slow machines reveal the problem: long gaps of 'mark' between each
frame, as if each input character was slowly typed interactively.
Fixes: ecebf01
Add ability to output a carrier while waiting for data
2015-08-24 13:54:34 -07:00
Kamal Mostafa
639b695f31
eliminate all instances of implicit double-promotion
2015-08-23 10:16:15 -07:00
Kamal Mostafa
d002c60a92
appease clang self-assignment warning
2015-08-23 09:12:34 -07:00
Kamal Mostafa
ed8e633af0
fix non-integer mark/space frequency handling
2015-08-23 09:00:40 -07:00
Nick Moriarty
ecebf013f0
Add ability to output a carrier while waiting for data
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Added --tx-carrier, which continues to output a tone while a blocking source
waits for more data on stdin.
2015-04-22 17:48:28 +01:00
Kamal Mostafa
49bfa06f8e
minimodem: --binary-raw {nbits} output mode
2015-04-21 14:01:03 -07:00
Kamal Mostafa
ff47edfb68
minimodem: accept "uic*" for uic-ground
2014-11-16 12:46:14 -08:00
Marcos Vives Del Sol
532bcfb84c
Honor --invert-start-stop in TX
2014-11-16 12:46:14 -08:00
Marcos Vives Del Sol
25d01f73d8
Add UIC-751-3 decoding and optional MSB-first TX/RX
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[ kamal: cleanup ]
2014-11-16 12:46:14 -08:00
Marcos Vives Del Sol
ff0346f5a8
Really use 64 data types for demodulation
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[ kamal: cleanup ]
2014-11-16 12:46:14 -08:00
Kamal Mostafa
2cdf2d29e4
build_expect_bits_string cleanup
2014-11-16 12:46:14 -08:00
Marcos Vives Del Sol
bbf121a63f
Compute expected bit strings outside of main loop
2014-11-16 12:46:14 -08:00
Marcos Vives Del Sol
cc6b5c9123
Change code to use 64-bit variables for decoding
2014-11-16 12:46:13 -08:00
Marcos Vives Del Sol
909adf0d59
Add option to change start-stop polarity
2014-11-16 12:46:13 -08:00
Kamal Mostafa
746f0f6c7a
minimodem: free samplebuf to appease valgrind
2014-11-14 09:12:27 -08:00
Kamal Mostafa
ba5ecec2f7
update copyright dates 2014
2014-11-13 10:56:31 -08:00
Kamal Mostafa
a6a7e0da35
callerid: warn when used with --auto-carrier
2014-11-08 09:27:31 -08:00
Kamal Mostafa
151e360720
minimodem: -7 implements 7-bit ASCII
2013-09-17 07:56:20 -07:00
Kamal Mostafa
a524e38222
minimodem: fix --baudot cmdline switch
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The --baudot (a.k.a. -5) command line switch didn't actually engage
the Baudot encoder/decoder, just set 5 bits per frame.
2013-09-05 15:36:49 -07:00
Kamal Mostafa
f9bdf43423
update copyright dates
2013-06-10 09:28:02 -07:00
Kamal Mostafa
0140e0df12
minimodem: --tx SAME emits 16 sync-byte preamble
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Emit a preamble of 16 (hardcoded) sync-bytes if --sync-byte is
specified with --tx mode. This makes --tx SAME emit the required
preamble of 16 0xAB's automatically. So --rx SAME now directly
decodes the output of --tx SAME without needing to manually inject
the preamble byte(s), simplifying the test case.
Thanks to Harold Giddings, for reporting the issue.
2013-06-08 10:16:56 -07:00
Kamal Mostafa
24f1acff4f
minimodem: fsk_transmit_frame factored out
2013-06-08 10:04:06 -07:00
Kamal Mostafa
8876f6674a
minimodem: rename bfsk_sync_on_data to bfsk_do_rx_sync
2013-06-08 09:27:01 -07:00
Kamal Mostafa
d774ad74dd
minimodem: handle arbitrary --startbits N
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minimodem --startbits N works for rx and tx, where (0 <= N <= 20).
Thanks Martyn (kronalias), for reporting.
2013-03-20 12:08:52 -07:00
Kamal Mostafa
7ab18a268f
minimodem: do not call setitimer(new_value=NULL)
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Linux kernel warns:
minimodem calls setitimer() with new_value NULL pointer. Misfeature support
will be removed
Thanks Robert Hooker, for reporting.
2013-01-25 15:03:54 -08:00
Kamal Mostafa
032d0bb79c
minimodem: refine frame position if confidence falls
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Allows for more accurate tracking, esp. for no-frame-bits protocols.
Fixes tests/test-80-SAME-datastream.
2012-11-03 14:20:33 -07:00
Kamal Mostafa
1446844d32
minimodem: do not transmit leader tone if no start bits
2012-11-03 14:10:44 -07:00
Kamal Mostafa
6ad778ce03
minimodem: fix --tx startbits/stopbits handling
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Make --tx support specified --startbits and --stopbits; also enables --tx SAME.
Thanks to Jamie Batmanglidj for reporting the issue.
2012-11-01 12:48:40 -07:00
Kamal Mostafa
65493fa12a
minimodem: --rx callerid
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New "callerid" baudmode supports Bell202 Caller-ID (MDMF or SDMF) prototol.
2012-10-05 19:40:17 -07:00
Kamal Mostafa
49ccd10e1f
minimodem: --rx prints all bytes unmolested, unless --print-filter
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Now, minimodem prints all received bytes without isprint() filtering,
unless --print-filter is specified. Allows for binary file transfers
and multibyte characters.
2012-10-05 13:29:30 -07:00
Kamal Mostafa
761cf00b16
minimodem: handle SIGINT on --rx: close the sa backend and print stats
2012-10-02 14:22:38 -07:00
Kamal Mostafa
2373364d9a
minimodem: performance: read samples in larger blocks
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For performance, read samples from the simpleaudio backend in larger
blocks when the number of bits per frame ends up being small.
2012-10-01 21:00:28 -07:00
Kamal Mostafa
6340365e2f
simpleaudio-sndfile: fix minimodem tx_interactive
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Un-break tx_interactive: minimodem enables tx_interactive whenever the
stream_name is NULL, so go back to using the stream_name as the sndfile
filename.
2012-09-10 20:02:53 -07:00
Kamal Mostafa
9f1695a3b6
minimodem: fix --auto-carrier crash on positive-shift modes
2012-09-09 17:42:53 -07:00
Kamal Mostafa
d603fc444d
minimodem: --alsa[=plughw:X,Y]
2012-09-09 15:24:35 -07:00
Kamal Mostafa
fabd47ba99
minimodem: less aggressive refine on acquisition
2012-09-05 23:22:27 -07:00
Kamal Mostafa
c8dd7ac06b
minimodem: fix --rx-one
2012-09-05 09:37:06 -07:00
Kamal Mostafa
3a1469b85e
minimodem: fix usage message
2012-09-05 09:36:12 -07:00
Kamal Mostafa
30de59026b
minimodem: --inverted switches the mark/space freqs
2012-09-04 16:26:10 -07:00