mirror of https://github.com/saitohirga/WSJT-X.git
181 lines
4.8 KiB
Fortran
181 lines
4.8 KiB
Fortran
program jt9
|
|
|
|
! Decoder for JT9. Can run stand-alone, reading data from *.wav files;
|
|
! or as the back end of wsjt-x, with data placed in a shared memory region.
|
|
|
|
use options
|
|
use prog_args
|
|
|
|
include 'constants.f90'
|
|
integer*4 ihdr(11)
|
|
real*4 s(NSMAX)
|
|
integer*2 id2
|
|
character c
|
|
character(len=500) optarg, infile
|
|
character wisfile*80,firstline*40
|
|
integer*4 arglen,stat,offset,remain
|
|
logical :: shmem = .false., read_files = .false., have_args = .false.
|
|
type (option) :: long_options (0)
|
|
common/jt9com/ss(184,NSMAX),savg(NSMAX),id2(NMAX),nutc,ndiskdat,ntr, &
|
|
mousefqso,newdat,nfa,nfsplit,nfb,ntol,kin,nzhsym,nsynced,ndecoded
|
|
common/tracer/limtrace,lu
|
|
common/patience/npatience
|
|
data npatience/1/
|
|
|
|
do
|
|
call getopt('s:e:a:r:p:d:f:w:',long_options,c,optarg,arglen,stat,offset,remain)
|
|
if (stat .ne. 0) then
|
|
exit
|
|
end if
|
|
have_args = .true.
|
|
select case (c)
|
|
case ('s')
|
|
shmem = .true.
|
|
shm_key = optarg(:arglen)
|
|
|
|
case ('e')
|
|
exe_dir = optarg(:arglen)
|
|
|
|
case ('a')
|
|
data_dir = optarg(:arglen)
|
|
|
|
case ('p')
|
|
read_files = .true.
|
|
read (optarg(:arglen), *) ntrperiod
|
|
|
|
case ('d')
|
|
read_files = .true.
|
|
read (optarg(:arglen), *) ndepth
|
|
|
|
case ('f')
|
|
read_files = .true.
|
|
read (optarg(:arglen), *) nrxfreq
|
|
|
|
case ('w')
|
|
read (optarg(:arglen), *) npatience
|
|
end select
|
|
end do
|
|
|
|
if (.not. have_args .or. (stat .lt. 0 .or. (shmem .and. remain .gt. 0) &
|
|
.or. (read_files .and. remain .eq. 0) .or. &
|
|
(shmem .and. read_files))) then
|
|
print*,'Usage: jt9 -p TRperiod [-d ndepth] [-f rxfreq] {-w patience] -e exe_dir file1 [file2 ...]'
|
|
print*,' Reads data from *.wav files.'
|
|
print*,''
|
|
print*,' jt9 -s <key> [-w patience] -e exe_dir'
|
|
print*,' Gets data from shared memory region with key==<key>'
|
|
go to 999
|
|
endif
|
|
|
|
! Import FFTW wisdom, if available:
|
|
open(14,file=trim(data_dir)//'/jt9_wisdom_status.txt',status='unknown',err=30)
|
|
open(28,file=trim(data_dir)//'/jt9_wisdom.dat',status='old',err=30)
|
|
read(28,1000,err=30,end=30) firstline
|
|
1000 format(a40)
|
|
rewind 28
|
|
isuccess=0
|
|
wisfile=trim(data_dir)//'/jt9_wisdom.dat'
|
|
n=len_trim(wisfile)
|
|
call import_wisdom(wisfile(1:n)//char(0),isuccess)
|
|
close(28)
|
|
30 if(isuccess.ne.0) then
|
|
write(14,1010) firstline
|
|
1010 format('Imported FFTW wisdom (jt9): ',a40)
|
|
else
|
|
write(14,1011)
|
|
1011 format('No imported FFTW wisdom (jt9):')
|
|
endif
|
|
call flush(14)
|
|
|
|
if (shmem) then
|
|
call jt9a()
|
|
go to 999
|
|
endif
|
|
|
|
limtrace=0
|
|
lu=12
|
|
|
|
do iarg = offset + 1, offset + remain
|
|
call get_command_argument (iarg, optarg, arglen)
|
|
infile = optarg(:arglen)
|
|
open(10,file=infile,access='stream',status='old',err=998)
|
|
read(10) ihdr
|
|
nutc0=ihdr(1) !Silence compiler warning
|
|
i1=index(infile,'.wav')
|
|
read(infile(i1-4:i1-1),*,err=1) nutc0
|
|
go to 2
|
|
1 nutc0=0
|
|
2 nsps=0
|
|
if(ntrperiod.eq.1) then
|
|
nsps=6912
|
|
nzhsym=173
|
|
else if(ntrperiod.eq.2) then
|
|
nsps=15360
|
|
nzhsym=178
|
|
else if(ntrperiod.eq.5) then
|
|
nsps=40960
|
|
nzhsym=172
|
|
else if(ntrperiod.eq.10) then
|
|
nsps=82944
|
|
nzhsym=171
|
|
else if(ntrperiod.eq.30) then
|
|
nsps=252000
|
|
nzhsym=167
|
|
endif
|
|
if(nsps.eq.0) stop 'Error: bad TRperiod'
|
|
|
|
kstep=nsps/2
|
|
k=0
|
|
nhsym0=-999
|
|
npts=(60*ntrperiod-6)*12000
|
|
if(iarg .eq. offset + 1) then
|
|
open(12,file=trim(data_dir)//'/timer.out',status='unknown')
|
|
call timer('jt9 ',0)
|
|
endif
|
|
|
|
id2=0 !??? Why is this necessary ???
|
|
|
|
do iblk=1,npts/kstep
|
|
k=iblk*kstep
|
|
call timer('read_wav',0)
|
|
read(10,end=10) id2(k-kstep+1:k)
|
|
call timer('read_wav',1)
|
|
|
|
nhsym=(k-2048)/kstep
|
|
if(nhsym.ge.1 .and. nhsym.ne.nhsym0) then
|
|
! Emit signal readyForFFT
|
|
ingain=0
|
|
call timer('symspec ',0)
|
|
call symspec(k,ntrperiod,nsps,ingain,slope,pxdb,s,df3,ihsym,npts8)
|
|
call timer('symspec ',1)
|
|
nhsym0=nhsym
|
|
if(ihsym.ge.173) go to 10
|
|
endif
|
|
enddo
|
|
|
|
10 close(10)
|
|
call fillcom(nutc0,ndepth,nrxfreq)
|
|
call decoder(ss,id2)
|
|
enddo
|
|
|
|
call timer('jt9 ',1)
|
|
call timer('jt9 ',101)
|
|
go to 999
|
|
|
|
998 print*,'Cannot open file:'
|
|
print*,infile
|
|
|
|
999 continue
|
|
! Export FFTW wisdom
|
|
wisfile=trim(data_dir)//'/jt9_wisdom.dat'
|
|
n=len_trim(wisfile)
|
|
call export_wisdom(wisfile(1:n)//char(0))
|
|
write(14,1999)
|
|
1999 format('Exported FFTW wisdom (jt9): ')
|
|
call flush(14)
|
|
|
|
call four2a(a,-1,1,1,1) !Save wisdom and free memory
|
|
call filbig(a,-1,1,0.0,0,0,0,0,0) !used for FFT plans
|
|
|
|
end program jt9
|