wavmetrics in the wild !
This commit is contained in:
tTh
parent
49183e4153
commit
cd715e902f
|
|
@ -1,6 +1,6 @@
|
|||
|
||||
chkpixels
|
||||
t
|
||||
twavm
|
||||
trnd
|
||||
|
||||
*.pgm
|
||||
|
|
|
|||
|
|
@ -31,6 +31,7 @@ mathstuff2.o: mathstuff2.f90 Makefile
|
|||
noisepictures.o: noisepictures.f90 Makefile
|
||||
gfortran $(GFOPT) -c $<
|
||||
|
||||
# new: Wed Feb 7 01:27:48 UTC 2024
|
||||
wavmetrics.o: wavmetrics.f90 Makefile
|
||||
gfortran $(GFOPT) -c $<
|
||||
|
||||
|
|
@ -59,3 +60,8 @@ t_centermag: t_centermag.f90 Makefile libtth90modules.a
|
|||
|
||||
trnd: trnd.f90 Makefile libtth90modules.a
|
||||
gfortran $(GFOPT) $< libtth90modules.a -o $@
|
||||
|
||||
# new: Wed Feb 7 01:27:48 UTC 2024
|
||||
twavm: twavm.f90 Makefile libtth90modules.a
|
||||
gfortran $(GFOPT) $< libtth90modules.a -o $@
|
||||
|
||||
|
|
|
|||
|
|
@ -3,6 +3,11 @@
|
|||
|
||||
## Modules disponibles
|
||||
|
||||
### wavmetrics
|
||||
|
||||
This module try to make some computations on *stereo* buffers.
|
||||
|
||||
This is just a [WIP](./wavmetrics.f90), see [twavm](./twavm.f90) for a no-use case.
|
||||
|
||||
### spitpgm
|
||||
|
||||
|
|
@ -32,4 +37,4 @@ See [Makefile](./Makefile) for an example.
|
|||
|
||||
## TODO
|
||||
|
||||
- écrire la doc !
|
||||
- write the fscking doc !
|
||||
|
|
|
|||
|
|
@ -0,0 +1,39 @@
|
|||
program essai
|
||||
|
||||
! new: Wed Feb 7 01:27:48 UTC 2024
|
||||
|
||||
use mathstuff2
|
||||
use wavmetrics
|
||||
implicit none
|
||||
|
||||
write(0, *) "----------------- essai -------------------"
|
||||
|
||||
call run_first_test(44100/30)
|
||||
|
||||
contains
|
||||
!-----------------------------------------------------------------------
|
||||
|
||||
subroutine run_first_test(nbs)
|
||||
integer, intent(in) :: nbs ! nombre d'echantillons
|
||||
|
||||
type(intsample), allocatable :: samples(:)
|
||||
type(wavmetric) :: metrics
|
||||
integer :: foo, bar
|
||||
|
||||
write(0, '(1X, "first test on ", I0, " samples.")') nbs
|
||||
|
||||
! create the buffer, and fill it with garbage
|
||||
allocate(samples(nbs))
|
||||
do foo=1, nbs
|
||||
samples(foo)%left = mod(irand(), 65534) - 32700
|
||||
samples(foo)%right = mod(irand(), 60000) - 29999
|
||||
enddo
|
||||
|
||||
! compute and display the metrics (gi-go)
|
||||
call compute_wavmetric(samples, nbs, metrics)
|
||||
call display_wavmetrics(metrics)
|
||||
|
||||
end subroutine
|
||||
!-----------------------------------------------------------------------
|
||||
|
||||
end program
|
||||
|
|
@ -1,15 +1,16 @@
|
|||
|
||||
! new: Thu Jan 4 00:08:04 UTC 2024
|
||||
|
||||
module wavmetrics
|
||||
|
||||
! new: Thu Jan 4 00:08:04 UTC 2024
|
||||
|
||||
use mathstuff2
|
||||
implicit none
|
||||
|
||||
type wavmetric
|
||||
integer :: num
|
||||
real :: freql, freqr
|
||||
integer :: maxl, maxr
|
||||
integer :: nbre ! number of slices/samples
|
||||
real :: freql, freqr ! zero-crossing estimation
|
||||
integer :: maxl, maxr ! maximum of abs values
|
||||
real :: meanl, meanr
|
||||
end type
|
||||
|
||||
type intsample
|
||||
|
|
@ -17,14 +18,51 @@ module wavmetrics
|
|||
end type
|
||||
|
||||
contains
|
||||
|
||||
!-------------------------------------------------------------
|
||||
|
||||
subroutine compute_wavmetric(samples, start, size, metrics)
|
||||
!-
|
||||
! main computation routine, still full buggy
|
||||
!-
|
||||
subroutine compute_wavmetric(samples, size, metrics)
|
||||
type(intsample), intent(in) :: samples(:)
|
||||
integer, intent(in) :: start, size
|
||||
integer, intent(in) :: size
|
||||
type(wavmetric), intent(out) :: metrics
|
||||
|
||||
integer :: Lmax, Rmax
|
||||
integer :: Lval, Rval
|
||||
integer :: idx
|
||||
integer :: Lfreq, Rfreq
|
||||
|
||||
real :: Lsum, Rsum
|
||||
|
||||
Lmax = 0 ; Rmax = 0
|
||||
Lfreq = 1 ; Rfreq = 1
|
||||
Lsum = 0.0 ; Rsum = 0.0
|
||||
|
||||
do idx=1, size
|
||||
Lval = samples(idx)%left
|
||||
Rval = samples(idx)%right
|
||||
|
||||
! print *, Rval, Lval
|
||||
if (abs(Lval) .GT. Lmax) Lmax = abs(Lval)
|
||||
if (abs(Rval) .GT. Rmax) Rmax = abs(Rval)
|
||||
|
||||
if (idx .GT. 1) then
|
||||
if (diff_sign(samples(idx-1)%left, Lval)) Lfreq = Lfreq + 1
|
||||
if (diff_sign(samples(idx-1)%right, Lval)) Rfreq = Rfreq + 1
|
||||
endif
|
||||
|
||||
Lsum = Lsum + Lval
|
||||
Rsum = Rsum + Rval
|
||||
|
||||
enddo
|
||||
|
||||
metrics%num = size
|
||||
metrics%maxl = Lmax ; metrics%maxr = Rmax
|
||||
metrics%freql = 1.0 / (Lfreq / real(size))
|
||||
metrics%freqr = 1.0 / (Rfreq / real(size))
|
||||
metrics%meanl = Lsum / real(size)
|
||||
metrics%meanr = Rsum / real(size)
|
||||
|
||||
end subroutine
|
||||
|
||||
!-------------------------------------------------------------
|
||||
|
|
@ -32,6 +70,13 @@ end subroutine
|
|||
subroutine display_wavmetrics(metrics)
|
||||
type(wavmetric), intent(in) :: metrics
|
||||
|
||||
! print '(1X, "metrics are :")'
|
||||
|
||||
print '(1X, " | num ", I0)', metrics%num
|
||||
print '(1X, " | freq ", 2F12.2)', metrics%freql, metrics%freqr
|
||||
print '(1X, " | mean ", 2F12.2)', metrics%meanl, metrics%meanr
|
||||
print '(1X, " | maxi ", 2I8)', metrics%maxl, metrics%maxr
|
||||
|
||||
end subroutine
|
||||
|
||||
!-------------------------------------------------------------
|
||||
|
|
|
|||
Loading…
Reference in New Issue