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First working example

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still a lot of debugging inside
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DJ2LS 2020-12-22 12:25:50 +01:00 committed by GitHub
parent 90785dee85
commit 9a4517487e
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1 changed files with 34 additions and 32 deletions
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66
test/TEST_RX.py
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@ -23,11 +23,6 @@ def main():
modem = FreeDV() #Load FreeDV Class as "modem"
modem.Demodulate()
#for line in sys.stdin.buffer:
# #print(line)
# modem.Demodulate(line)
class FreeDV():
@ -44,13 +39,15 @@ class FreeDV():
self.nin = self.c_lib.freedv_nin(self.freedv)
print("N MAX MODEM SAMPLES: " + str(self.n_max_modem_samples))
print("NIN: " + str(self.nin))
print("BYTES PER FRAME: " + str(self.bytes_per_frame))
print("NIN: " + str(self.nin))
print("BYTES PER FRAME: " + str(self.bytes_per_frame))
print("---------------------------------")
# MODULATION-IN OBJECT
def ModulationIn(self):
return (c_short * self.n_max_modem_samples) ##
return (c_short * (self.n_max_modem_samples)) ##
#return (c_short * 40000)
#return (c_short * (self.nin))
# Pointer for changing buffer data type
def FrameBytes(self):
@ -60,48 +57,53 @@ class FreeDV():
# Modulate function which returns modulated data
def Demodulate(self):
nin = self.c_lib.freedv_nin(self.freedv)
while self.c_lib.freedv_nin(self.freedv) == nin:
#nin = self.c_lib.freedv_nin(self.freedv)
#print(nin)
samples = self.c_lib.freedv_nin(self.freedv) ### MIT DER *2 funktioniert das irgendwie recht zuverlässig bei mode 5!
print(samples)
#while (self.c_lib.freedv_nin(self.freedv) == nin):
#while sys.stdin.buffer != 0:
while True:
samples = self.c_lib.freedv_nin(self.freedv)*2 ### MIT DER *2 funktioniert das irgendwie recht zuverlässig bei mode 5! Bei Mode 12 auch
data_in = sys.stdin.buffer.read(samples)
#buffer = bytearray(len(self.ModulationIn()())*sizeof(c_short)) # create empty byte array
#buffer = bytearray(len(self.ModulationIn()())*self.n_max_modem_samples) # create empty byte array
buffer = bytearray(1848) # N MAX SAMPLES * 2
print("BUFFER LENGTH: " + str(len(buffer)))
buffer = bytearray(self.n_max_modem_samples*2) # N MAX SAMPLES * 2
buffer[:len(data_in)] = data_in # copy across what we have
modulation = self.ModulationIn() # get an empty modulation array
self.ModulationIn()()
modulation = self.ModulationIn()# get an empty modulation array
modulation = modulation.from_buffer_copy(buffer) # copy buffer across and get a pointer to it.
print("MODULATION LENGTH: " + str(len(modulation)))
bytes_out = self.FrameBytes()() # initilize a pointer to where bytes will be outputed
nbytes = self.c_lib.freedv_rawdatarx(self.freedv, bytes_out, data_in)
self.nin = self.c_lib.freedv_nin(self.freedv)
print("INPUT PARSER: " + str(samples))
print("INPUT LENGTH: " + str(len(data_in)))
print("BUFFER LENGTH: " + str(len(buffer)))
print("MODULATION LENGTH: " + str(len(modulation)))
sync_state = self.c_lib.freedv_get_sync(self.freedv)
if sync_state > 0:
print("SYNC")
# print data to terminal if bytes have been demodulated
if nbytes > 0:
print(bytes(bytes_out))
#print(nbytes)
#print(bytes(bytes_out))
#Stop loop until data input is empty
if len(data_in) == 0:
False
break