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module ft8_decode
parameter (MAXFOX=1000)
character*12 c2fox(MAXFOX)
character*4 g2fox(MAXFOX)
integer nsnrfox(MAXFOX)
integer nfreqfox(MAXFOX)
integer n30fox(MAXFOX)
integer n30z
integer nfox
type :: ft8_decoder
procedure(ft8_decode_callback), pointer :: callback
contains
procedure :: decode
end type ft8_decoder
abstract interface
subroutine ft8_decode_callback (this,sync,snr,dt,freq,decoded,nap,qual)
import ft8_decoder
implicit none
class(ft8_decoder), intent(inout) :: this
real, intent(in) :: sync
integer, intent(in) :: snr
real, intent(in) :: dt
real, intent(in) :: freq
character(len=37), intent(in) :: decoded
integer, intent(in) :: nap
real, intent(in) :: qual
end subroutine ft8_decode_callback
end interface
contains
subroutine decode(this,callback,iwave,nQSOProgress,nfqso,nftx,newdat, &
nutc,nfa,nfb,nzhsym,ndepth,emedelay,ncontest,nagain,lft8apon, &
lapcqonly,napwid,mycall12,hiscall12,ldiskdat)
use iso_c_binding, only: c_bool, c_int
use timer_module, only: timer
use shmem, only: shmem_lock, shmem_unlock
use ft8_a7
include 'ft8/ft8_params.f90'
class(ft8_decoder), intent(inout) :: this
procedure(ft8_decode_callback) :: callback
parameter (MAXCAND=600,MAX_EARLY=100)
real*8 tsec,tseq
real s(NH1,NHSYM)
real sbase(NH1)
real candidate(3,MAXCAND)
real dd(15*12000),dd1(15*12000)
logical, intent(in) :: lft8apon,lapcqonly,nagain
logical newdat,lsubtract,ldupe,lrefinedt
logical*1 ldiskdat
logical lsubtracted(MAX_EARLY)
character*12 mycall12,hiscall12,call_1,call_2
character*4 grid4
integer*2 iwave(15*12000)
integer apsym2(58),aph10(10)
character datetime*13,msg37*37
character*37 allmessages(200)
character*12 ctime
integer allsnrs(100)
integer itone(NN)
integer itone_save(NN,MAX_EARLY)
real f1_save(MAX_EARLY)
real xdt_save(MAX_EARLY)
data nutc0/-1/
save s,dd,dd1,nutc0,ndec_early,itone_save,f1_save,xdt_save,lsubtracted,&
allmessages
this%callback => callback
write(datetime,1001) nutc !### TEMPORARY ###
1001 format("000000_",i6.6)
if(nutc0.eq.-1) then
msg0=' '
dt0=0.
f0=0.
endif
!Added 41==nzhsym to force a reset if the same wav file is processed twice or more in a row,
!in which case nutc.eq.nutc0 and ndec(jseq,1) doesn't get reset
if(nzhsym==41 .or. (nutc.ne.nutc0)) then
! New UTC. Move previously saved 'a7' data from k=1 to k=0
iz=ndec(jseq,1)
dt0(1:iz,jseq,0) = dt0(1:iz,jseq,1)
f0(1:iz,jseq,0) = f0(1:iz,jseq,1)
msg0(1:iz,jseq,0) = msg0(1:iz,jseq,1)
ndec(jseq,0)=iz
ndec(jseq,1)=0
nutc0=nutc
dt0(:,jseq,1)=0.
f0(:,jseq,1)=0.
endif
if(ndepth.eq.1 .and. nzhsym.lt.50) then
ndec_early=0
return
endif
if(ndepth.eq.1 .and. nzhsym.eq.50) then
dd=iwave
endif
call ft8apset(mycall12,hiscall12,ncontest,apsym2,aph10)
if(nzhsym.le.47) then
dd=iwave
dd1=dd
endif
if(nzhsym.eq.41) then
ndecodes=0
allmessages=' '
allsnrs=0
else
ndecodes=ndec_early
endif
if(nzhsym.eq.47 .and. ndec_early.eq.0) then
dd1=dd
go to 800
endif
if(nzhsym.eq.47 .and. ndec_early.ge.1) then
lsubtracted=.false.
lrefinedt=.true.
if(ndepth.le.2) lrefinedt=.false.
call timer('sub_ft8b',0)
do i=1,ndec_early
if(xdt_save(i)-0.5.lt.0.396) then
call subtractft8(dd,itone_save(1,i),f1_save(i),xdt_save(i), &
lrefinedt)
lsubtracted(i)=.true.
endif
call timestamp(tsec,tseq,ctime)
if(.not.ldiskdat .and. tseq.ge.14.3d0) then !Bail out before done
call timer('sub_ft8b',1)
dd1=dd
go to 800
endif
enddo
call timer('sub_ft8b',1)
dd1=dd
go to 900
endif
if(nzhsym.eq.50 .and. ndec_early.ge.1 .and. .not.nagain) then
n=47*3456
dd(1:n)=dd1(1:n)
dd(n+1:)=iwave(n+1:)
call timer('sub_ft8c',0)
do i=1,ndec_early
if(lsubtracted(i)) cycle
call subtractft8(dd,itone_save(1,i),f1_save(i),xdt_save(i),.true.)
enddo
call timer('sub_ft8c',1)
endif
ifa=nfa
ifb=nfb
if(nzhsym.eq.50 .and. nagain) then
dd=iwave
ifa=nfqso-20
ifb=nfqso+20
endif
! For now:
! ndepth=1: 1 pass, bp
! ndepth=2: subtraction, 3 passes, bp+osd (no subtract refinement)
! ndepth=3: subtraction, 3 passes, bp+osd
npass=3
if(ndepth.eq.1) npass=2
do ipass=1,npass
newdat=.true.
syncmin=1.3
if(ndepth.le.2) syncmin=1.6
if(nzhsym.eq.41) syncmin=2.0
if(ipass.eq.1) then
lsubtract=.true.
ndeep=ndepth
if(ndepth.eq.3) ndeep=2
elseif(ipass.eq.2) then
n2=ndecodes
if(ndecodes.eq.0) cycle
lsubtract=.true.
ndeep=ndepth
elseif(ipass.eq.3) then
if((ndecodes-n2).eq.0) cycle
lsubtract=.true.
ndeep=ndepth
endif
call timer('sync8 ',0)
maxc=MAXCAND
call sync8(dd,ifa,ifb,syncmin,nfqso,maxc,nzhsym,candidate, &
ncand,sbase)
call timer('sync8 ',1)
do icand=1,ncand
sync=candidate(3,icand)
f1=candidate(1,icand)
xdt=candidate(2,icand)
xbase=10.0**(0.1*(sbase(nint(f1/3.125))-40.0))
msg37=' '
call timer('ft8b ',0)
call ft8b(dd,newdat,nQSOProgress,nfqso,nftx,ndeep,nzhsym,lft8apon, &
lapcqonly,napwid,lsubtract,nagain,ncontest,iaptype,mycall12, &
hiscall12,f1,xdt,xbase,apsym2,aph10,nharderrors,dmin, &
nbadcrc,iappass,msg37,xsnr,itone)
call timer('ft8b ',1)
nsnr=nint(xsnr)
xdt=xdt-0.5
hd=nharderrors+dmin
if(nbadcrc.eq.0) then
ldupe=.false.
do id=1,ndecodes
if(msg37.eq.allmessages(id)) ldupe=.true.
enddo
if(.not.ldupe) then
ndecodes=ndecodes+1
allmessages(ndecodes)=msg37
allsnrs(ndecodes)=nsnr
f1_save(ndecodes)=f1
xdt_save(ndecodes)=xdt+0.5
itone_save(1:NN,ndecodes)=itone
endif
if(.not.ldupe .and. associated(this%callback)) then
qual=1.0-(nharderrors+dmin)/60.0 ! scale qual to [0.0,1.0]
if(emedelay.ne.0) xdt=xdt+2.0
call this%callback(sync,nsnr,xdt,f1,msg37,iaptype,qual)
call ft8_a7_save(nutc,xdt,f1,msg37) !Enter decode in table
endif
endif
call timestamp(tsec,tseq,ctime)
if(.not.ldiskdat .and. nzhsym.eq.41 .and. &
tseq.ge.13.4d0) go to 800 !Bail out before done
enddo ! icand
enddo ! ipass
800 ndec_early=0
if(nzhsym.lt.50) ndec_early=ndecodes
900 continue
if(lft8apon .and. ncontest.ne.6 .and. ncontest.ne.7 .and. nzhsym.eq.50 .and. ndec(jseq,0).ge.1) then
newdat=.true.
do i=1,ndec(jseq,0)
if(f0(i,jseq,0).eq.-99.0) exit
if(f0(i,jseq,0).eq.-98.0) cycle
if(index(msg0(i,jseq,0),'<').ge.1) cycle !### Temporary ###
msg37=msg0(i,jseq,0)
i1=index(msg37,' ')
i2=index(msg37(i1+1:),' ') + i1
call_1=msg37(1:i1-1)
call_2=msg37(i1+1:i2-1)
grid4=msg37(i2+1:i2+4)
if(grid4.eq.'RR73' .or. index(grid4,'+').gt.0 .or. &
index(grid4,'-').gt.0) grid4=' '
xdt=dt0(i,jseq,0)
f1=f0(i,jseq,0)
xbase=10.0**(0.1*(sbase(max(1,nint(f1/3.125)))-40.0))
msg37=' '
call timer('ft8_a7d ',0)
call ft8_a7d(dd,newdat,call_1,call_2,grid4,xdt,f1,xbase,nharderrors, &
dmin,msg37,xsnr)
call timer('ft8_a7d ',1)
if(nharderrors.ge.0) then
if(associated(this%callback)) then
nsnr=xsnr
iaptype=7
qual=1.0
call this%callback(sync,nsnr,xdt,f1,msg37,iaptype,qual)
call ft8_a7_save(nutc,xdt,f1,msg37) !Enter decode in table
endif
endif
enddo
endif
return
end subroutine decode
subroutine timestamp(tsec,tseq,ctime)
real*8 tsec,tseq
character*12 ctime
integer itime(8)
call date_and_time(values=itime)
tsec=3600.d0*(itime(5)-itime(4)/60.d0) + 60.d0*itime(6) + &
itime(7) + 0.001d0*itime(8)
tsec=mod(tsec+2*86400.d0,86400.d0)
tseq=mod(itime(7)+0.001d0*itime(8),15.d0)
if(tseq.lt.10.d0) tseq=tseq+15.d0
sec=itime(7)+0.001*itime(8)
write(ctime,1000) itime(5)-itime(4)/60,itime(6),sec
1000 format(i2.2,':',i2.2,':',f6.3)
if(ctime(7:7).eq.' ') ctime(7:7)='0'
return
end subroutine timestamp
end module ft8_decode
|
