The WAV file format allows for optional header content, allow for this
in preparation for adding some metadata to WSJT-X recorded WAV files.
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More aggressive parameters are selected with higher values of
"Aggressive decoding level" on the "Advanced" tab. With settings
greater than 0, be sure to set Ftol=1000 if you want to decode over
the whole passband.
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Fell into the Fortran trap for C/C++ programmers, automatic SAVE
attribute on default initialized variables.
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Re-factor the JT4, JT65 and JT9 decoders as Fortran modules using type
bound procedures, the decoder types implement a callback procedure
such that he client of the decoder can interpret the decode results as
they need.
The JT4 decoder has a second callback that delivers message averaging
status. Also the previously separate source files lib/jt4a.f90 and
lib/avg4.f90 have been merged into lib/jt4_decode.f90 as private type
bound procedures of the new jt4_decoder type.
Re-factored the lib/decoder.f90 subroutine to utilize the new decoder
types. Added local procedures to process decodes and averaging results
including the necessary OpenMP synchronization directives for parallel
JT9+JT65 decoding.
Added the jt65_test module which is a basic test harness for JT65
decoding. Re-factored the jt65 utility to utilize the new jt65_test
module.
Changed a few integers to logical variables where their meaning is
clearly binary.
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Groundwork for calling the decoders directly from C/C++ threads.
To access the timer module timer_module must now be used.
Instrumented code need only use the module function 'timer' which is
now a procedure pointer that is guaranteed to be associated (unless
null() is assigned to it, which should not be done). The default
behaviour of 'timer' is to do nothing.
If a Fortran program wishes to profile code it should now use the
timer_impl module which contains a default timer implementation. The
main program should call 'init_timer([filename])' before using 'timer'
or calling routines that are instrumented. If
'init_timer([filename])'. If it is called then an optional file name
may be provided with 'timer.out' being used as a default. The
procedure 'fini_timer()' may be called to close the file.
The default timer implementation is thread safe if used with OpenMP
multi-threaded code so long as the OpenMP thread team is given the
copyin(/timer_private/) attribute for correct operation. The common
block /timer_private/ should be included for OpenMP use by including
the file 'timer_common.inc'.
The module 'lib/timer_C_wrapper.f90' provides a Fortran wrapper along
with 'init' and 'fini' subroutines which allow a C/C++ application to
call timer instrumented Fortran code and for it to receive callbacks
of 'timer()' subroutine invocations. No C/C++ timer implementation is
provided at this stage.
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Also disable "Enable Tx" when changing bands.
Thanks to Mike W9MDB for contributions to this patch.
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Also added --progress switch to rsync command
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Samples are downloaded from a web server, currently the SF download
server. The samples are stored in the source controlled samples
directory and the CMake script there builds a suitable directory tree
for upload to the web server under samples/web containing the samples
hierarchy and the generated JSON contents database file. The samples
CMake script also defines an 'upload-samples' target that uses rsync
to efficiently upload the samples and the accompanying contents JSON
database file.
Any directory structure under the samples directory may be created, to
add a new sample file simply add the file to source control and amend
the list of sample files (SAMPLE_FILES) in samples/CMakeLists.txt.
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XOR:ing the time since epoch in seconds with the PID fails for processes
started every second since the PID and time increment in step regularly in
this scenario and therefore give identical seeds. Thanks to Steve K9AN for
spotting this subtle flaw.
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Made default values for decoding parameters better in standalone jt65
tool.
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Also use correct C binding and have compilers determine sizes and
offsets.
The wsjtx.exe program now owns the decoder shared data that is shared
with symspec. It is now in struct dec_data, still a global variable
for now but hopefully a MainWindow member variable soon.
The struct dec_data (in both C/C++ and Fortran) has a sub structure
with the decoder parameters which enables copying and manipulating a
lot cleaner.
New of changed types of shared data must still be modified in
commons.h and a new file lib/jt9com.f90, they must stay in sync as a
pointer to the structure is passed between C and Fortran.
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