- New features:
- Decode 'broadcaster use' data in Slow labeling codes (variant 6)
- Decode 'decoder identification' bits in Group 15B
- Workaround buggy encoders that show 1 extra character in RT+ fields
- Bug fixes:
- Fix the CSVReader (used in the TMC decoder) ignoring the last line of any file
- Remove extra trailing space in transparent data channels hexdump
- Make raw libsndfile errors user-friendlier (instead of saying 'System error')
- Build system fixes:
- macOS: ask Homebrew about liquid-dsp location instead of hardcoding it
- Set default installation prefix to /usr/local (all platforms)
- Fixes:
- Fix a crash (uncaught json exception) when attempting to serialize a string that's
invalid UTF-8, e.g. if long PS gets corrupted
- Fix build when the installed version of nlohmann-json is too old (#113)
- Fix a couple of integer overflows, one affecting the subcarrier reset functionality
after 3.5 hours of runtime and another one after 41 days of constant data
- New features:
- Add support for Enhanced RadioText (eRT)
- Add support for Long PS in Group 15A (#104)
- Add runtime option
--no-fec for disabling error correction
- UX changes:
- Breaking: Print a warning to stderr if the raw MPX input sample rate is
not specified (breaks the previous silent assumption of 171 kHz)
- Improve error reporting in general
- Add
--output hex (same as --output-hex) to mirror --input hex
- Fixes:
- Fix detection of invalid date/time (timestamps >2000 years ago)
- Noise resistance improvements (#106):
- Require three (instead of two) repeats of a new PI before accepting it
- Require three (instead of two) synchronization pulses before locking
- Maintainability:
- Migrate build system from autotools to meson (#90)
- Switch from patched, packaged-in JsonCPP to external nlohmann-json (#109)
- Breaking: The order of some JSON elements has changed (insertion order
instead of alphabetical)
- Add automated CI builds for macOS, Windows (MSYS2/MinGW + Cygwin), Ubuntu-latest,
Debian Buster
- Add Debian packaging (#101)
- Add basic Catch2 unit tests (#84)
- Add .clang-format (not automated)
- Remove unmaintained build options for non-liquid, non-TMC builds
- Fix compiler warnings, issues identified via static analysis, and other code cleanup
- Add support for decoding LTCC and LTECC in TMC (#80)
- Add support for decoding RDS output from the TEF6686 tuner (#89)
- Add support for Alternative Frequencies Method B (#88)
- Breaking: Change the name of the field
alt_kilohertz to either
alt_frequencies_a or alt_frequencies_b. The type of data sent by these
methods differs. When --show-partial is set, the AF list will be in
partial_alt_frequencies regardless of method.
- Add option
--input / -i to specify the stdin input format (bits, hex,
mpx, tef). The old options will still work.
- Fix automake script on Windows (#81)
- Fix compatibility with current liquid-dsp (#78)
- Fix output for UTF-8 encoded TMC location tables (#82)
- Fix
clock_time displaying wrong date around midnight (#83)
- Fix misinterpretation of the Decoder Identification bits (#87)
- Fix decoding of RadioText for stations that don't use string terminators
(#77)
- Fix an off-by-one bug in the RadioText decoder that sometimes caused missing
characters at the end of messages
- Fix runaway PLL after digital silence by clamping the phase error (#94)
- Recognize more ODAs and features - thanks Andreas Mikula
- Add support for PTY names (group 10A)
- Add partial support for DAB cross-referencing (ODA 0x0093)
- Add support for raw broadcaster data in EON (variant 15)
- Add support for transparent data channels (groups 5A, 5B)
- Add support for fractional seconds in the rx timestamp format (
%f).
- Add support for TMC tuning info variant 8
- Add buffer delay compensation to rx timestamps. Timestamps aim to represent
the time the PCM samples were read in.
- Place some JSON fields in the beginning of the line for easier visual
inspection (pi, group, ps...)
- Print raw ODA data if the application is not supported
- Add option
--show-raw (-R) for including the raw group data as a hex
string in the JSON output
- Print usage help if there are non-option arguments on the command line
- Fix uninitialized block error rate values on some systems
- Update jsoncpp from 1.8.1 to 1.8.4 to fix some warnings
- Add support for loading multiple TMC location databases by specifying
--loctable more than once.
- Sample rate can also be specified as
-r 171k instead of -r 171000.
- Fix a crash if the input audio file couldn't be loaded.
- Print usage help instead of error message when stdin is empty.
- Speed up loading of TMC location database.
- Improve block sync detection by ignoring spurious sync pulses.
- Fine-tune filter bandwidths for better sensitivity, based on test runs.
- At EOF, process the last partially received group.
- Remove character codetables G1 and G2 since they don't appear in the latest
RDS standard any more.
- Clean up code to ensure maintainability. Redsea now requires a compiler
that supports C++14.
- Fix: Return exit value 0 if
--version or --help was requested
- Don't open stdout for libsndfile unless
--feed-through was specified,
otherwise json can't be written (this may break the feed-through on Linux
temporarily)
- Change the type of the JSON field for TMC message urgency, from integer
(0, 1, 2) to string ("none", "U", "X")
- Speed improvements by avoiding a few extraneous buffer copies internally
- Add support for multi-channel signals (
--channels) - libsndfile is now
a required dependency
- Speed improvements:
- By using a lookup table instead of sinf/cosf to generate the
mix-down sinusoid
- By only using one mix-down operation instead of two
- Add
prog_item_number field containing the raw Program Item Number
- Add
partial_alt_kilohertz field containing an incomplete list of
alternative frequencies when the --show-partial option is used
- Add configure option
--without-macports to disable directory checks
when cross-compiling
- Reduce write calls to output JSON stream using a stringstream (#56)
- Remove an old shell script that launches
rtl_fm - instead, there is
a mention of rtl_fm usage in the readme and wiki
- Change the
callsign object name to callsign_uncertain when a station's PI
code begins with a 1
- Fix UTC+14 getting marked as invalid (it's the time zone in Kiribati)
- Fix syntax errors in schema
- Add support for decoding call sign letters from North American (RBDS)
stations - activated by the
-u switch
- Change the JSON structure in
radiotext_plus: RT+ tags are now displayed as
an array of objects with content-type and data:
"radiotext_plus":{
"tags":[
{"content-type":"item.artist",
"data":"SeeB feat. Neev"},
{"content-type":"item.title",
"data":"Breathe"}
]
}
- Change the way frequencies are displayed for better machine readability, from
"frequency":"87.9 MHz" to "kilohertz":87900
- Update jsoncpp from version 1.7.7 to 1.8.1
- Add support for time-of-demodulation timestamps (
-t, --timestamp)
- Add support for average block error rate (BLER) estimation (
-E, --bler)
- Change the long option for
-b to --input-bits and fix the incorrect
option in the usage help
- Add support for TMC alternative frequencies (tuning info variant 6)
- Add support for TMC gap parameter and enhanced mode (3A group variant 1)
- Change JSON schema for TMC:
encryption_id is now under system_info
- Change PLL bandwidth and lowpass cutoff frequency to improve noise performance
- Change resampler anti-alias cutoff frequency to allow for lower sample rates
- Fix missing zero-padding in PIN time string
- Fix uninitialized PI field occasionally getting printed when the actual PI
is missed
- Fix some names not getting read properly from the location database
- Fix grammar in some TMC event descriptions
- Fix potentially uninitialized data printout when a type 6B group was not fully
received
- Fix potentially uninitialized RadioText+ tags when the group was not fully
received
- Fix spurious printouts of "version B" groups when the C' offset was not seen
- Add support for non-default sample rates (
-r option) using an internal
resampler
- Add support for reading audio files (
libsndfile dependency, can be disabled)
- Fix location table info being sometimes printed into the wrong stream
- Fix conflicting compiler optimization flags
- Add support for type 14B EON groups
- Change rtl-rx.sh to run redsea installed in $PATH
- Add support for Decoder Identification (DI)
- Add support for auxiliary character code tables (G1 and G2)
- Add support for TMC location tables (
--loctable DIR), adds iconv dependency
- Add schema to specify JSON output format
- Fix UTC time zone being displayed as "-00:00"
- Fix PS strings getting trimmed
- Add option
-p or --show-partial to display PS and RadioText before
completely received (disabled by default)
- Add support for EON variant 4 (alternative frequencies for other networks)
- Add support for LF/MF alternative frequencies
- Add support for frequency quantifiers in TMC
- Change the way alternative frequencies are printed (87.9 becomes "87.9 MHz")
to allow for LF/MF frequencies
- Fix radiotext decoding for group 2B, thanks Anonymous
- Fix empty hex group printout at EOF
- Add option
-e to echo stdin to stdout and print the decoded output to stderr
- Use jsoncpp for JSON serialization
- Change the order of JSON keys (alphabetical instead of PI first) because of
jsoncpp
- Add
partial_radiotext and partial_ps fields that show RadioText and PS
before they're fully received
- Add support for partially received 15B groups
- Better algorithm for biphase symbol decoding, improves performance with noisy
signals
- Fix unnecessary sync drops
- Print all received hex blocks even if the beginning of the group was missed
- Try to decode the group even if PI was missed once
- Adjust filter parameters to get a slightly better signal in noisy conditions
- Don't correct bit errors longer than 2 bits
- Fix incorrect formatting of negative local time offset with half-hours
- Fix incorrect JSON formatting in TMC Other Network output
- Fix potential JSON error by escaping the backslash character in PS, RT
- Don't print PIN with invalid clock time
- Add partial support for 15B groups (Fast basic tuning and switching
information)
- Add support for "speech/music" flag
- Add support for TMC Other Network info
- Add
./configure option --without-liquid to compile without liquid-dsp and
demodulation support
- Add
./autogen.sh to generate ./configure
- Change TMC disable flag to a
./configure option as well, --disable-tmc
- Change JSON booleans from strings ("true") to plain booleans (true)
- Change JSON format of all TMC location table and service ID numbers from hex
strings ("0x1F") to plain numbers (31)
- Fix PLL implementation, now actually locks onto a frequency
- Compile all TMC text data in to the executable - no external files (#26)
- Add compile-time flag to disable TMC support, as the above can take some time
- Add option
-u to use North American (RBDS) program type names
- Fix TMC message not showing until the next one is received (#21)
- Fix spelling of program type names (no title case or 16-character limit)
- Fix high error rate in the beginning of reception by increasing AGC bandwidth
- Change format of alternate frequencies from string to numbers
- Change format of TMC location table number from hex string to number
- Apply burst error correction to check bits as well
- Fix off-by-one errors in RadioText+ caused by RT characters being converted to
UTF-8, thanks flux242
- Fix most cases of RadioText+ fields containing segments from a previous RT
message
- Fix bogus {"pi":"0x0000"} printout at EOF
- Don't print empty or incomplete TMC messages
- Use "debug" JSON object instead of C-style comments for debug information
- Warn if TMC data files couldn't be opened
- Fixed broken JSON output in 3A groups, thanks flux242