mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
maybe fix of "stuck in sync"
fixed a lot of buffer allocation problems
This commit is contained in:
DJ2LS
GitHub
parent
681fe6d8ac
commit
2c7ca05bee
1 changed files with 60 additions and 46 deletions
76
modem.py
76
modem.py
|
|
@ -64,10 +64,6 @@ class RF():
|
|||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
#--------------------------------------------CONFIGURE HAMLIB
|
||||
Hamlib.rig_set_debug(Hamlib.RIG_DEBUG_NONE)
|
||||
|
||||
|
|
@ -104,17 +100,16 @@ class RF():
|
|||
self.my_rig.set_ptt(self.hamlib_ptt_type,1)
|
||||
|
||||
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
freedv = self.c_lib.freedv_open(static.FREEDV_SIGNALLING_MODE)
|
||||
bytes_per_frame = int(self.c_lib.freedv_get_bits_per_modem_frame(freedv)/8)
|
||||
payload_per_frame = bytes_per_frame -2
|
||||
n_nom_modem_samples = self.c_lib.freedv_get_n_nom_modem_samples(freedv)
|
||||
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv)*2 #get n_tx_modem_samples which defines the size of the modulation object
|
||||
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv) #get n_tx_modem_samples which defines the size of the modulation object
|
||||
|
||||
mod_out = ctypes.c_short * n_tx_modem_samples
|
||||
mod_out = mod_out()
|
||||
mod_out_preamble = ctypes.c_short * (1760*2) #1760 for mode 10,11,12 #4000 for mode 9
|
||||
mod_out_preamble = ctypes.c_short * (n_tx_modem_samples) #*2 #1760 for mode 10,11,12 #4000 for mode 9
|
||||
mod_out_preamble = mod_out_preamble()
|
||||
|
||||
buffer = bytearray(payload_per_frame) # use this if CRC16 checksum is required ( DATA1-3)
|
||||
|
|
@ -126,18 +121,19 @@ class RF():
|
|||
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
|
||||
|
||||
preamble_bytes = self.c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble)
|
||||
#print(n_tx_modem_samples)
|
||||
#print(preamble_bytes)
|
||||
#print(len(mod_out_preamble))
|
||||
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer = bytearray()
|
||||
txbuffer += bytes(mod_out_preamble)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
# -------------- transmit audio twice
|
||||
|
||||
logging.debug("SEND SIGNALLING FRAME " + str(ack_buffer))
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
|
||||
self.my_rig.set_ptt(self.hamlib_ptt_type,0)
|
||||
static.PTT_STATE = False
|
||||
|
|
@ -156,17 +152,20 @@ class RF():
|
|||
static.FREEDV_DATA_PAYLOAD_PER_FRAME = static.FREEDV_DATA_BYTES_PER_FRAME -2
|
||||
|
||||
n_nom_modem_samples = self.c_lib.freedv_get_n_nom_modem_samples(freedv)
|
||||
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv)*2 #get n_tx_modem_samples which defines the size of the modulation object
|
||||
n_tx_modem_samples = self.c_lib.freedv_get_n_tx_modem_samples(freedv)#*2 #get n_tx_modem_samples which defines the size of the modulation object
|
||||
|
||||
mod_out = ctypes.c_short * n_tx_modem_samples
|
||||
mod_out = mod_out()
|
||||
mod_out_preamble = ctypes.c_short * (n_tx_modem_samples*2) #1760 for mode 10,11,12 #4000 for mode 9
|
||||
mod_out_preamble = ctypes.c_short * (3520) #*2 #1760 for mode 10,11,12 #4000 for mode 9
|
||||
mod_out_preamble = mod_out_preamble()
|
||||
|
||||
self.c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble);
|
||||
preamble = self.c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble);
|
||||
#print(n_tx_modem_samples)
|
||||
#print(preamble)
|
||||
#print(len(mod_out_preamble))
|
||||
|
||||
txbuffer = bytearray()
|
||||
txbuffer += bytes(mod_out_preamble)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
if static.ARQ_RPT_RECEIVED == False:
|
||||
for n in range(0,static.ARQ_TX_N_FRAMES_PER_BURST):
|
||||
|
|
@ -203,7 +202,6 @@ class RF():
|
|||
data = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
elif static.ARQ_RPT_RECEIVED == True:
|
||||
|
||||
|
|
@ -243,19 +241,17 @@ class RF():
|
|||
data = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME).from_buffer_copy(buffer)
|
||||
self.c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and safe it into mod_out pointer
|
||||
txbuffer += bytes(mod_out)
|
||||
txbuffer = txbuffer.rstrip(b'\x00') #lets remove unallocated memory because of wrong buffer :-/
|
||||
|
||||
|
||||
# -------------- transmit audio
|
||||
self.stream_tx.write(bytes(txbuffer))
|
||||
#time.sleep(0.5)
|
||||
static.ARQ_STATE = 'IDLE'
|
||||
#static.ARQ_STATE = 'RECEIVING_SIGNALLING'
|
||||
static.PTT_STATE = False
|
||||
self.my_rig.set_ptt(self.hamlib_ptt_type,0)
|
||||
#--------------------------------------------------------------------------------------------------------
|
||||
def receive(self,data_mode,signalling_mode):
|
||||
force = False
|
||||
force = True
|
||||
|
||||
self.c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
|
||||
|
||||
|
|
@ -268,10 +264,13 @@ class RF():
|
|||
static.FREEDV_SIGNALLING_PAYLOAD_PER_FRAME = static.FREEDV_SIGNALLING_BYTES_PER_FRAME -2
|
||||
|
||||
data_bytes_out = (ctypes.c_ubyte * static.FREEDV_DATA_BYTES_PER_FRAME)
|
||||
data_bytes_out = data_bytes_out() #get pointer from bytes_out
|
||||
data_bytes_out = data_bytes_out() #get pointer to bytes_out
|
||||
|
||||
signalling_bytes_out = (ctypes.c_ubyte * static.FREEDV_SIGNALLING_BYTES_PER_FRAME)
|
||||
signalling_bytes_out = signalling_bytes_out() #get pointer from bytes_out
|
||||
signalling_bytes_out = signalling_bytes_out() #get pointer to bytes_out
|
||||
|
||||
self.c_lib.freedv_set_frames_per_burst(freedv_data, 0);
|
||||
self.c_lib.freedv_set_frames_per_burst(freedv_signalling, 1);
|
||||
|
||||
# with this we can interrupt receiving
|
||||
while static.FREEDV_RECEIVE == True:
|
||||
|
|
@ -282,6 +281,13 @@ class RF():
|
|||
stuck_in_sync_10_counter = 0
|
||||
#
|
||||
|
||||
|
||||
#for i in range(0,3):
|
||||
# data_dummy = bytes(self.c_lib.freedv_nin(freedv_data))
|
||||
# signalling_dummy = bytes(self.c_lib.freedv_nin(freedv_signalling))
|
||||
# self.c_lib.freedv_rawdatarx(freedv_data, data_bytes_out, data_dummy)
|
||||
# self.c_lib.freedv_rawdatarx(freedv_signalling, data_bytes_out, signalling_dummy)
|
||||
|
||||
while static.ARQ_STATE == 'RECEIVING_DATA':
|
||||
time.sleep(0.01)
|
||||
|
||||
|
|
@ -290,9 +296,6 @@ class RF():
|
|||
|
||||
data_in = self.stream_rx.read(nin, exception_on_overflow = False)
|
||||
#print(audioop.rms(data_in, 2))
|
||||
data_in = data_in.rstrip(b'\x00')
|
||||
|
||||
#print(data_in)
|
||||
|
||||
#self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), data_bytes_out, data_in] # check if really neccessary
|
||||
nbytes = self.c_lib.freedv_rawdatarx(freedv_data, data_bytes_out, data_in) # demodulate audio
|
||||
|
|
@ -309,19 +312,18 @@ class RF():
|
|||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
data_in = None
|
||||
|
||||
|
||||
if stuck_in_sync_counter >= 66 and stuck_in_sync_10_counter >= 2:
|
||||
logging.critical("stuck in sync #2")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
stuck_in_sync_counter = 0
|
||||
stuck_in_sync_10_counter = 0
|
||||
data_in = None
|
||||
#-----------------------------------
|
||||
|
||||
|
||||
if nbytes == static.FREEDV_DATA_BYTES_PER_FRAME:
|
||||
rxstatus = self.c_lib.freedv_get_rx_status(freedv_data)
|
||||
logging.debug("DATA-" + str(rxstatus))
|
||||
|
||||
# counter reset for stuck in sync counter
|
||||
stuck_in_sync_counter = 0
|
||||
|
|
@ -333,6 +335,8 @@ class RF():
|
|||
frame = frametype - 10
|
||||
n_frames_per_burst = int.from_bytes(bytes(data_bytes_out[1:2]), "big")
|
||||
|
||||
#self.c_lib.freedv_set_frames_per_burst(freedv_data, n_frames_per_burst);
|
||||
|
||||
if 50 >= frametype >= 10:
|
||||
if frame != 3 or force == True:
|
||||
arq.data_received(bytes(data_bytes_out[:-2])) #send payload data to arq checker without CRC16
|
||||
|
|
@ -354,16 +358,23 @@ class RF():
|
|||
logging.debug("LAST FRAME ---> UNSYNC")
|
||||
self.c_lib.freedv_set_sync(freedv_data, 0) #FORCE UNSYNC
|
||||
|
||||
# clear demod buffer
|
||||
|
||||
#for i in range(0,3):
|
||||
# data_dummy = bytes(self.c_lib.freedv_nin(freedv_data))
|
||||
# signalling_dummy = bytes(self.c_lib.freedv_nin(freedv_signalling))
|
||||
# self.c_lib.freedv_rawdatarx(freedv_data, data_bytes_out, data_dummy)
|
||||
# self.c_lib.freedv_rawdatarx(freedv_signalling, data_bytes_out, signalling_dummy)
|
||||
|
||||
|
||||
while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
#while static.ARQ_STATE == 'IDLE' or static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
while static.ARQ_STATE == 'RECEIVING_SIGNALLING':
|
||||
time.sleep(0.01)
|
||||
|
||||
nin = self.c_lib.freedv_nin(freedv_signalling)
|
||||
#nin = int(nin*(static.AUDIO_SAMPLE_RATE_RX/static.MODEM_SAMPLE_RATE))
|
||||
|
||||
data_in = self.stream_rx.read(nin, exception_on_overflow = False)
|
||||
data_in = data_in.rstrip(b'\x00')
|
||||
|
||||
#self.c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), signalling_bytes_out, data_in] # check if really neccessary
|
||||
nbytes = self.c_lib.freedv_rawdatarx(freedv_signalling, signalling_bytes_out, data_in) # demodulate audio
|
||||
|
|
@ -371,7 +382,7 @@ class RF():
|
|||
# CHECK IF FRAME CONTAINS ACK------------------------
|
||||
|
||||
if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME:
|
||||
self.c_lib.freedv_set_sync(freedv_signalling, 0)
|
||||
#self.c_lib.freedv_set_sync(freedv_signalling, 0)
|
||||
frametype = int.from_bytes(bytes(signalling_bytes_out[:1]), "big")
|
||||
|
||||
# BURST ACK
|
||||
|
|
@ -395,6 +406,9 @@ class RF():
|
|||
|
||||
rxstatus = self.c_lib.freedv_get_rx_status(freedv_signalling)
|
||||
logging.debug("ACK-" + str(rxstatus))
|
||||
if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME or rxstatus == 10:
|
||||
self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC
|
||||
if rxstatus == 10:
|
||||
#self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC
|
||||
print("SIGNALLING -SYNC 10- Trigger")
|
||||
#if nbytes == static.FREEDV_SIGNALLING_BYTES_PER_FRAME or rxstatus == 10:
|
||||
# self.c_lib.freedv_set_sync(freedv_signalling, 0) #FORCE UNSYNC
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue