mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-10-30 20:40:28 -04:00
Progress: ft2.exe is now basically functional in audio-loopback tests.
This commit is contained in:
Joe Taylor
parent
8a6cee7e26
commit
bbbe83ffe5
@ -6,7 +6,7 @@ program ft2
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logical allok
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character*20 pttport
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character*8 arg
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integer*2 iwave2(30000)
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! integer*2 iwave2(30000)
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allok=.true.
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! Get home-station details
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@ -38,7 +38,7 @@ program ft2
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nwave=NTZ
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nfsample=12000
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ngo=1
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npabuf=1280
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npabuf=1152
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ntxok=0
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ntransmitting=0
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tx_once=.false.
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@ -52,25 +52,16 @@ program ft2
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read(arg,*) f0
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call getarg(3,arg)
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read(arg,*) snrdb
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nTxOK=1
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tx_once=.true.
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call ft2_iwave(txmsg,f0,snrdb,iwave)
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nTxOK=1
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endif
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iwave2(1:23040)=iwave
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iwave2(23041:30000)=0
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nutc=0
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nfqso=nint(f0)
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call ft2_decode(nutc,nfqso,iwave2)
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! Start the audio streams
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ierr=ft2audio(idevin,idevout,npabuf,nright,y1,y2,NRING,iwrite,itx, &
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iwave,nwave,nfsample,nTxOK,nTransmitting,ngo)
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if(ierr.ne.0) then
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print*,'Error',ierr,' in JTaudio, you will only be able to work offline.'
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else
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write(*,1006)
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1006 format('Audio streams terminated normally.')
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print*,'Error',ierr,' starting audio input and/or output.'
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endif
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999 end program ft2
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@ -78,33 +69,31 @@ program ft2
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subroutine update(total_time,ic1,ic2)
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real*8 total_time
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integer*8 count00,count0,count1,clkfreq
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integer ptt
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integer*2 id(30000)
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logical transmitted
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integer*2 id(30000),id2(30000)
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character*30 line
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character cdate*8,ctime*10,cdatetime*17
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include 'gcom1.f90'
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data nt0/-1/,transmitted/.false./,snr/0.0/
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save nt0,transmitted,snr
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data nt0/-1/,transmitted/.false./,snr/-99.0/,count00/-1/
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save nt0,transmitted,snr,count00
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if(ic1.ne.0 .or. ic2.ne.0) then
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if(ic1.eq.27 .and. ic2.eq.0) ngo=0 !ESC
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if(nTxOK.eq.0 .and. ntransmitting.eq.0) then
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nd=0
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if(ic1.eq.0 .and. ic2.eq.59) nd=7 !F1
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if(ic1.eq.0 .and. ic2.eq.60) nd=6 !F2
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if(ic1.eq.0 .and. ic2.eq.61) nd=5 !F3
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if(ic1.eq.0 .and. ic2.eq.59) nd=1 !F1
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if(ic1.eq.0 .and. ic2.eq.60) nd=2 !F2
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if(ic1.eq.0 .and. ic2.eq.61) nd=3 !F3
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if(ic1.eq.0 .and. ic2.eq.62) nd=4 !F4
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if(ic1.eq.0 .and. ic2.eq.63) nd=3 !F5
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if(ic1.eq.0 .and. ic2.eq.63) nd=5 !F5
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if(nd.gt.0) then
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i1=ptt(nport,1,1,iptt)
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ntxok=1
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n=1000
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nwave=NTZ
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do i=1,nwave/nd
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ib=i*nd
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ia=ib-nd+1
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iwave(ia:ib)=n
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n=-n
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enddo
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if(nd.eq.1) txmsg='CQ K1JT FN20'
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if(nd.eq.2) txmsg='K9AN K1JT 559 NJ'
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call ft2_iwave(txmsg,1500.0,99.0,iwave)
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endif
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endif
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if(ic1.eq.13 .and. ic2.eq.0) hiscall=hiscall_next
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@ -138,13 +127,25 @@ subroutine update(total_time,ic1,ic2)
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enddo
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nutc=0
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nfqso=1500
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call ft2_iwave(txmsg,1500.0,snr,id2) !###
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snr=snr-1.0
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call ft2_decode(nutc,nfqso,id2) !###
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!### call ft2_decode(nutc,nfqso,id)
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write(*,1010) nt,total_time,iwrite,itx,ntxok,ntransmitting,sigdb,snr
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1010 format(i6,f9.3,4i6,f6.1,f6.0)
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ndecodes=0
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if(maxval(abs(id)).gt.0) then
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call date_and_time(cdate,ctime)
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cdatetime=cdate(3:8)//'_'//ctime
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call system_clock(count0,clkfreq)
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call ft2_decode(cdatetime,nfqso,id,ndecodes)
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call system_clock(count1,clkfreq)
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tdecode=float(count1-count0)/float(clkfreq)
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if(count00.lt.0) count00=count0
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trun=float(count1-count00)/float(clkfreq)
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endif
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n=2*sigdb-30.0
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if(n.lt.1) n=1
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if(n.gt.30) n=30
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line=' '
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line(n:n)='*'
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! write(*,1010) nt,total_time,iwrite,itx,ntxok,ntransmitting,ndecodes, &
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! snr,sigdb,line
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!1010 format(i6,f9.3,i10,i6,3i3,f6.0,f6.1,1x,a30)
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nt0=nt
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max1=0
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max2=0
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@ -1,4 +1,4 @@
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subroutine ft2_decode(nutc,nfqso,iwave)
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subroutine ft2_decode(cdatetime,nfqso,iwave,ndecodes)
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use crc
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use packjt77
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@ -6,6 +6,7 @@ subroutine ft2_decode(nutc,nfqso,iwave)
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character message*37,c77*77
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character*37 decodes(100)
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character*120 data_dir
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character*17 cdatetime
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complex c2(0:NMAX/16-1) !Complex waveform
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complex cb(0:NMAX/16-1)
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complex cd(0:144*10-1) !Complex waveform
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@ -65,7 +66,6 @@ subroutine ft2_decode(nutc,nfqso,iwave)
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ndecodes=0
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do icand=1,ncand
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f0=candidate(1,icand)
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! print*,'A',ncand,f0
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xsnr=1.0
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if( f0.le.375.0 .or. f0.ge.(5000.0-375.0) ) cycle
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call ft2_downsample(iwave,f0,c2) ! downsample from 160s/Symbol to 10s/Symbol
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@ -194,15 +194,16 @@ subroutine ft2_decode(nutc,nfqso,iwave)
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decodes(ndecodes)=message
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nsnr=nint(xsnr)
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freq=f0+dfbest
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write(*,1212) nutc,nsnr,ibest/750.0,nint(freq),message, &
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write(*,1212) cdatetime,nsnr,ibest/750.0,nint(freq),message, &
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nseq,nharderror,nhardmin
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1212 format(i4.4,i4,f6.2,i6,2x,a37,3i5)
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1212 format(a17,i4,f6.2,i6,2x,a37,3i5)
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goto 888
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endif
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enddo ! nseq
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888 continue
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enddo !candidate list
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return
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end subroutine ft2_decode
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subroutine getbitmetric(ib,ps,ns,xmet)
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@ -6,9 +6,9 @@ subroutine ft2_iwave(msg37,f0,snrdb,iwave)
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include 'ft2_params.f90' !Set various constants
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parameter (NWAVE=NN*NSPS)
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character msg37*37,msgsent37*37
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real wave(NMAX)
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real wave(NWAVE),xnoise(NWAVE)
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integer itone(NN)
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integer*2 iwave(NMAX) !Generated full-length waveform
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integer*2 iwave(NWAVE) !Generated full-length waveform
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twopi=8.0*atan(1.0)
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fs=12000.0 !Sample rate (Hz)
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@ -19,8 +19,8 @@ subroutine ft2_iwave(msg37,f0,snrdb,iwave)
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bw=1.5*baud !Occupied bandwidth (Hz)
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txt=NZ*dt !Transmission length (s)
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bandwidth_ratio=2500.0/(fs/2.0)
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sig=sqrt(2*bandwidth_ratio) * 10.0**(0.05*snrdb)
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if(snrdb.gt.90.0) sig=1.0
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! sig=sqrt(2*bandwidth_ratio) * 10.0**(0.05*snrdb)
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! if(snrdb.gt.90.0) sig=1.0
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txt=NN*NSPS/12000.0
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! Source-encode, then get itone():
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@ -29,38 +29,36 @@ subroutine ft2_iwave(msg37,f0,snrdb,iwave)
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k=0
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phi=0.0
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sqsig=0.
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do j=1,NN !Generate real waveform
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dphi=twopi*(f0*dt+(hmod/2.0)*(2*itone(j)-1)/real(NSPS))
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do i=1,NSPS
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k=k+1
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wave(k)=sig*sin(phi)
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wave(k)=sqrt(2.0)*sin(phi) !Signal has rms = 1.0
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sqsig=sqsig + wave(k)**2
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phi=mod(phi+dphi,twopi)
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enddo
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enddo
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kz=k
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peak=maxval(abs(wave(1:kz)))
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! nslots=1
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! if(width.gt.0.0) call filt8(f0,nslots,width,wave)
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if(snrdb.gt.90.0) then
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iwave=nint((32767.0/sqrt(2.0))*wave)
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return
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endif
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sqnoise=1.e-30
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if(snrdb.lt.90) then
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do i=1,NMAX !Add gaussian noise at specified SNR
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xnoise=gran()
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wave(i)=wave(i) + xnoise
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do i=1,NWAVE !Add gaussian noise at specified SNR
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xnoise(i)=gran() !Noise has rms = 1.0
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enddo
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endif
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gain=1.0
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if(snrdb.lt.90.0) then
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wave=gain*wave
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else
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xnoise=xnoise*sqrt(0.5*fs/2500.0)
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fac=30.0
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snr_amplitude=10.0**(0.05*snrdb)
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wave=fac*(snr_amplitude*wave + xnoise)
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datpk=maxval(abs(wave))
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fac=32767.0/datpk
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wave=fac*wave
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endif
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print*,'A',snr_amplitude,datpk
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if(any(abs(wave).gt.32767.0)) print*,"Warning - data will be clipped."
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iwave(1:kz)=nint(wave(1:kz))
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iwave=nint((30000.0/datpk)*wave)
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return
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end subroutine ft2_iwave
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@ -1,6 +1,7 @@
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#include <stdio.h>
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#include "portaudio.h"
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#include <string.h>
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#include <time.h>
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int iaa;
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int icc;
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@ -15,7 +16,7 @@ typedef struct
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int *Transmitting;
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int *nwave;
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int *nright;
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int nbuflen;
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int nring;
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int nfs;
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short *y1;
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short *y2;
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@ -57,10 +58,11 @@ SoundIn( void *inputBuffer, void *outputBuffer,
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}
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}
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if(ia >= data->nbuflen) ia=0; //Wrap buffer pointer if necessary
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if(ia >= data->nring) ia=0; //Wrap buffer pointer if necessary
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*data->iwrite = ia; //Save buffer pointer
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iaa=ia;
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total_time += (double)framesPerBuffer/12000.0;
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// printf("iwrite: %d\n",*data->iwrite);
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return 0;
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}
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@ -78,28 +80,41 @@ SoundOut( void *inputBuffer, void *outputBuffer,
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static short int n2;
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static int ic=0;
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static int TxOKz=0;
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static clock_t tstart=-1;
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static clock_t tend=-1;
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static int nsent=0;
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// printf("txOK: %d %d\n",TxOKz,*data->TxOK);
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if(*data->TxOK && (!TxOKz)) ic=0;
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TxOKz=*data->TxOK;
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*data->Transmitting=*data->TxOK;
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if(*data->TxOK && (!TxOKz)) ic=0; //Reset buffer pointer to start Tx
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*data->Transmitting=*data->TxOK; //Set the "transmitting" flag
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if(*data->TxOK) {
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if(!TxOKz) {
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// Start of a transmission
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tstart=clock();
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nsent=0;
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// printf("Start Tx\n");
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}
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TxOKz=*data->TxOK;
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for(i=0 ; i < framesPerBuffer; i++ ) {
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n2=data->iwave[ic];
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*wptr++ = n2; //left
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*wptr++ = n2; //right
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ic++;
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if(ic >= *data->nwave) {
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if(ic > *data->nwave) {
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*data->TxOK = 0;
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*data->Transmitting = 0;
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*data->iwrite = 0; //Reset Rx buffer pointer to 0
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ic=0;
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tend=clock();
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double TxT=((double)(tend-tstart))/CLOCKS_PER_SEC;
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// printf("End Tx, TxT = %f nSent = %d\n",TxT,nsent);
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break;
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}
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}
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nsent += framesPerBuffer;
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} else {
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memset((void*)outputBuffer, 0, 2*sizeof(short)*framesPerBuffer);
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}
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@ -110,7 +125,7 @@ SoundOut( void *inputBuffer, void *outputBuffer,
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/*******************************************************************/
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int ft2audio_(int *ndevin, int *ndevout, int *npabuf, int *nright,
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short y1[], short y2[], int *nbuflen, int *iwrite,
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short y1[], short y2[], int *nring, int *iwrite,
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int *itx, short iwave[], int *nwave, int *nfsample,
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int *TxOK, int *Transmitting, int *ngo)
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@ -134,7 +149,7 @@ int ft2audio_(int *ndevin, int *ndevout, int *npabuf, int *nright,
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data.Transmitting = Transmitting;
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data.y1 = y1;
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data.y2 = y2;
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data.nbuflen = *nbuflen;
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data.nring = *nring;
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data.nright = nright;
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data.nwave = nwave;
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data.iwave = iwave;
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@ -2,5 +2,5 @@ gcc -c ft2audio.c
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gcc -c ptt.c
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gfortran -c ../77bit/packjt77.f90
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gfortran -c ../crc.f90
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gfortran -o ft2 -fbounds-check -fno-second-underscore -Wall -Wno-conversion -Wno-character-truncation ft2.f90 ft2_iwave.f90 ft2_decode.f90 getcandidates2.f90 ft2audio.o ptt.o libwsjt_fort.a libwsjt_cxx.a libportaudio.a ../libfftw3f_win.a -lwinmm
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gfortran -o ft2 -fbounds-check -fno-second-underscore -ffpe-trap=invalid,zero -Wall -Wno-conversion -Wno-character-truncation ft2.f90 ft2_iwave.f90 ft2_decode.f90 getcandidates2.f90 ft2audio.o ptt.o libwsjt_fort.a libwsjt_cxx.a libportaudio.a ../libfftw3f_win.a -lwinmm
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rm *.o *.mod
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@ -2,7 +2,7 @@
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!---------------------------------------------------------------------------
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integer NRING !Length of Rx ring buffer
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integer NTZ !Length of Tx waveform in samples
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parameter(NRING=32768) !About 2.7 s at 12000 sam/sec
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parameter(NRING=230400) !Ring buffer at 12000 samples/sec
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parameter(NTZ=23040) !144*160
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parameter(NMAX=30000) !2.5*12000
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real snrdb
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@ -43,7 +43,7 @@ subroutine getcandidates2(id,fa,fb,maxcand,savg,candidate,ncand)
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indx=0
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call indexx(savsm(nfa:nfb),np,indx)
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xn=savsm(nfa+indx(nint(0.3*np)))
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savsm=savsm/xn
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if(xn.ne.0) savsm=savsm/xn
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imax=-1
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xmax=-99.
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do i=2,NH1-1
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@ -60,5 +60,5 @@ subroutine getcandidates2(id,fa,fb,maxcand,savg,candidate,ncand)
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candidate(1,ncand)=f0
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endif
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return
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return
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end subroutine getcandidates2
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