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FreeDATA/freedata_server/codec2.py
DJ2LS 0f0e7b6532 added ofdm500 prototype
2024-05-11 20:18:21 +02:00

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"""
Python interface to the C-language codec2 library.
"""
# -*- coding: utf-8 -*-
# pylint: disable=invalid-name, line-too-long, c-extension-no-member
# pylint: disable=import-outside-toplevel, attribute-defined-outside-init
import ctypes
from ctypes import *
import hashlib
import glob
import os
import sys
from enum import Enum
from threading import Lock
import codec2_filter_coeff
import numpy as np
import structlog
log = structlog.get_logger("codec2")
# Enum for codec2 modes
class FREEDV_MODE(Enum):
"""
Enumeration for codec2 modes and names
"""
signalling = 19
signalling_ack = 20
datac0 = 14
datac1 = 10
datac3 = 12
datac4 = 18
datac13 = 19
datac14 = 20
data_ofdm_500 = 21500
data_ofdm_2438 = 2124381
#data_qam_2438 = 2124382
#qam16c2 = 22
class FREEDV_MODE_USED_SLOTS(Enum):
"""
Enumeration for codec2 used slots
"""
sig0 = [False, False, True, False, False]
sig1 = [False, False, True, False, False]
datac0 = [False, False, True, False, False]
datac1 = [False, True, True, True, False]
datac3 = [False, False, True, False, False]
datac4 = [False, False, True, False, False]
datac13 = [False, False, True, False, False]
datac14 = [False, False, True, False, False]
data_ofdm_500 = [False, False, True, False, False]
data_ofdm_2438 = [True, True, True, True, True]
data_qam_2438 = [True, True, True, True, True]
qam16c2 = [True, True, True, True, True]
# Function for returning the mode value
def freedv_get_mode_value_by_name(mode: str) -> int:
"""
Get the codec2 mode by entering its string
Args:
mode: String representation of the codec2 mode.
Returns:
int
"""
return FREEDV_MODE[mode.lower()].value
# Function for returning the mode name
def freedv_get_mode_name_by_value(mode: int) -> str:
"""
Get the codec2 mode name as string
Args:
mode: Integer value of the codec2 mode.
Returns:
string
"""
return FREEDV_MODE(mode).name
# Get the directory of the current script file
script_dir = os.path.dirname(os.path.abspath(__file__))
sys.path.append(script_dir)
# Use script_dir to construct the paths for file search
if sys.platform == "linux":
files = glob.glob(os.path.join(script_dir, "**/*libcodec2*"), recursive=True)
#files.append(os.path.join(script_dir, "libcodec2.so"))
elif sys.platform == "darwin":
if hasattr(sys, "_MEIPASS"):
files = glob.glob(os.path.join(getattr(sys, "_MEIPASS"), '**/*libcodec2*'), recursive=True)
else:
files = glob.glob(os.path.join(script_dir, "**/*libcodec2*.dylib"), recursive=True)
elif sys.platform in ["win32", "win64"]:
files = glob.glob(os.path.join(script_dir, "**\\*libcodec2*.dll"), recursive=True)
else:
files = []
api = None
for file in files:
try:
api = ctypes.CDLL(file)
log.info("[C2 ] Libcodec2 loaded", path=file)
break
except OSError as err:
pass
#log.info("[C2 ] Error: Libcodec2 found but not loaded", path=file, e=err)
# Quit module if codec2 cant be loaded
if api is None or "api" not in locals():
log.critical("[C2 ] Error: Libcodec2 not loaded - Exiting")
sys.exit(1)
#log.info("[C2 ] Libcodec2 loaded...", path=file)
# ctypes function init
# api.freedv_set_tuning_range.restype = ctypes.c_int
# api.freedv_set_tuning_range.argype = [ctypes.c_void_p, ctypes.c_float, ctypes.c_float]
api.freedv_open.argype = [ctypes.c_int] # type: ignore
api.freedv_open.restype = ctypes.c_void_p
api.freedv_set_sync.argype = [ctypes.c_void_p, ctypes.c_int] # type: ignore
api.freedv_set_sync.restype = ctypes.c_void_p
api.freedv_open_advanced.argtype = [ctypes.c_int, ctypes.c_void_p] # type: ignore
api.freedv_open_advanced.restype = ctypes.c_void_p
api.freedv_get_bits_per_modem_frame.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_bits_per_modem_frame.restype = ctypes.c_int
api.freedv_get_modem_extended_stats.argtype = [ctypes.c_void_p, ctypes.c_void_p]
api.freedv_get_modem_extended_stats.restype = ctypes.c_int
api.freedv_nin.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_nin.restype = ctypes.c_int
api.freedv_rawdatarx.argtype = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p] # type: ignore
api.freedv_rawdatarx.restype = ctypes.c_int
api.freedv_rawdatatx.argtype = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p] # type: ignore
api.freedv_rawdatatx.restype = ctypes.c_int
api.freedv_rawdatapostambletx.argtype = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p] # type: ignore
api.freedv_rawdatapostambletx.restype = ctypes.c_int
api.freedv_rawdatapreambletx.argtype = [ctypes.c_void_p, ctypes.c_char_p, ctypes.c_char_p] # type: ignore
api.freedv_rawdatapreambletx.restype = ctypes.c_int
api.freedv_get_n_max_modem_samples.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_n_max_modem_samples.restype = ctypes.c_int
api.freedv_set_frames_per_burst.argtype = [ctypes.c_void_p, ctypes.c_int] # type: ignore
api.freedv_set_frames_per_burst.restype = ctypes.c_void_p
api.freedv_get_rx_status.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_rx_status.restype = ctypes.c_int
api.freedv_get_modem_stats.argtype = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_void_p] # type: ignore
api.freedv_get_modem_stats.restype = ctypes.c_int
api.freedv_get_n_tx_postamble_modem_samples.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_n_tx_postamble_modem_samples.restype = ctypes.c_int
api.freedv_get_n_tx_preamble_modem_samples.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_n_tx_preamble_modem_samples.restype = ctypes.c_int
api.freedv_get_n_tx_modem_samples.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_n_tx_modem_samples.restype = ctypes.c_int
api.freedv_get_n_max_modem_samples.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_get_n_max_modem_samples.restype = ctypes.c_int
api.freedv_ofdm_print_info.argtype = [ctypes.c_void_p] # type: ignore
api.freedv_ofdm_print_info.restype = ctypes.c_void_p
api.FREEDV_FS_8000 = 8000 # type: ignore
# ------- MODEM STATS STRUCTURES
MODEM_STATS_NC_MAX = 50 + 1 * 2
MODEM_STATS_NR_MAX = 320 * 2
MODEM_STATS_ET_MAX = 8
MODEM_STATS_EYE_IND_MAX = 160
MODEM_STATS_NSPEC = 512
MODEM_STATS_MAX_F_HZ = 4000
MODEM_STATS_MAX_F_EST = 4
class MODEMSTATS(ctypes.Structure):
"""Modem statistics structure"""
_fields_ = [
("Nc", ctypes.c_int),
("snr_est", ctypes.c_float),
("rx_symbols", (ctypes.c_float * MODEM_STATS_NR_MAX) * MODEM_STATS_NC_MAX),
("nr", ctypes.c_int),
("sync", ctypes.c_int),
("foff", ctypes.c_float),
("rx_timing", ctypes.c_float),
("clock_offset", ctypes.c_float),
("sync_metric", ctypes.c_float),
("pre", ctypes.c_int),
("post", ctypes.c_int),
("uw_fails", ctypes.c_int),
("rx_eye", (ctypes.c_float * MODEM_STATS_ET_MAX) * MODEM_STATS_EYE_IND_MAX),
("neyetr", ctypes.c_int), # How many eye traces are plotted
("neyesamp", ctypes.c_int), # How many samples in the eye diagram
("f_est", (ctypes.c_float * MODEM_STATS_MAX_F_EST)),
("fft_buf", (ctypes.c_float * MODEM_STATS_NSPEC * 2)),
("fft_cfg", ctypes.c_void_p)
]
# Return code flags for freedv_get_rx_status() function
api.FREEDV_RX_TRIAL_SYNC = 0x1 # type: ignore # demodulator has trial sync
api.FREEDV_RX_SYNC = 0x2 # type: ignore # demodulator has sync
api.FREEDV_RX_BITS = 0x4 # type: ignore # data bits have been returned
api.FREEDV_RX_BIT_ERRORS = 0x8 # type: ignore # FEC may not have corrected all bit errors (not all parity checks OK)
api.rx_sync_flags_to_text = [ # type: ignore
"----",
"---T",
"--S-",
"--ST",
"-B--",
"-B-T",
"-BS-",
"-BST",
"E---",
"E--T",
"E-S-",
"E-ST",
"EB--",
"EB-T",
"EBS-",
"EBST",
]
# Audio buffer ---------------------------------------------------------
class audio_buffer:
"""
Thread-safe audio buffer, which fits the needs of codec2
made by David Rowe, VK5DGR
"""
# A buffer of int16 samples, using a fixed length numpy array self.buffer for storage
# self.nbuffer is the current number of samples in the buffer
def __init__(self, size):
log.debug("[C2 ] Creating audio buffer", size=size)
self.size = size
self.buffer = np.zeros(size, dtype=np.int16)
self.nbuffer = 0
self.mutex = Lock()
def push(self, samples):
"""
Push new data to buffer
Args:
samples:
Returns:
Nothing
"""
self.mutex.acquire()
# Add samples at the end of the buffer
assert self.nbuffer + len(samples) <= self.size
self.buffer[self.nbuffer : self.nbuffer + len(samples)] = samples
self.nbuffer += len(samples)
self.mutex.release()
def pop(self, size):
"""
get data from buffer in size of NIN
Args:
size:
Returns:
Nothing
"""
self.mutex.acquire()
# Remove samples from the start of the buffer
self.nbuffer -= size
self.buffer[: self.nbuffer] = self.buffer[size : size + self.nbuffer]
assert self.nbuffer >= 0
self.mutex.release()
# Resampler ---------------------------------------------------------
# Oversampling rate
api.FDMDV_OS_48 = 6 # type: ignore
# Number of oversampling taps at 48kHz
api.FDMDV_OS_TAPS_48K = 48 # type: ignore
# Number of oversampling filter taps at 8kHz
api.FDMDV_OS_TAPS_48_8K = api.FDMDV_OS_TAPS_48K // api.FDMDV_OS_48 # type: ignore
api.fdmdv_8_to_48_short.argtype = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int] # type: ignore
api.fdmdv_48_to_8_short.argtype = [ctypes.c_void_p, ctypes.c_void_p, ctypes.c_int] # type: ignore
class resampler:
"""
Re-sampler class
"""
# Re-sample an array of variable length, we just store the filter memories here
MEM8 = api.FDMDV_OS_TAPS_48_8K
MEM48 = api.FDMDV_OS_TAPS_48K
def __init__(self):
log.debug("[C2 ] Create 48<->8 kHz resampler")
self.filter_mem8 = np.zeros(self.MEM8, dtype=np.int16)
self.filter_mem48 = np.zeros(self.MEM48)
def resample48_to_8(self, in48):
"""
Audio resampler integration from codec2
Downsample audio from 48000Hz to 8000Hz
Args:
in48: input data as np.int16
Returns:
Downsampled 8000Hz data as np.int16
"""
assert in48.dtype == np.int16
# Length of input vector must be an integer multiple of api.FDMDV_OS_48
assert len(in48) % api.FDMDV_OS_48 == 0 # type: ignore
# Concatenate filter memory and input samples
in48_mem = np.zeros(self.MEM48 + len(in48), dtype=np.int16)
in48_mem[: self.MEM48] = self.filter_mem48
in48_mem[self.MEM48 :] = in48
# In C: pin48=&in48_mem[MEM48]
pin48 = ctypes.byref(np.ctypeslib.as_ctypes(in48_mem), 2 * self.MEM48)
n8 = int(len(in48) / api.FDMDV_OS_48) # type: ignore
out8 = np.zeros(n8, dtype=np.int16)
api.fdmdv_48_to_8_short(out8.ctypes, pin48, n8) # type: ignore
# Store memory for next time
self.filter_mem48 = in48_mem[: self.MEM48]
return out8
def resample8_to_48(self, in8):
"""
Audio resampler integration from codec2
Re-sample audio from 8000Hz to 48000Hz
Args:
in8: input data as np.int16
Returns:
48000Hz audio as np.int16
"""
assert in8.dtype == np.int16
# Concatenate filter memory and input samples
in8_mem = np.zeros(self.MEM8 + len(in8), dtype=np.int16)
in8_mem[: self.MEM8] = self.filter_mem8
in8_mem[self.MEM8 :] = in8
# In C: pin8=&in8_mem[MEM8]
pin8 = ctypes.byref(np.ctypeslib.as_ctypes(in8_mem), 2 * self.MEM8)
out48 = np.zeros(api.FDMDV_OS_48 * len(in8), dtype=np.int16) # type: ignore
api.fdmdv_8_to_48_short(out48.ctypes, pin8, len(in8)) # type: ignore
# Store memory for next time
self.filter_mem8 = in8_mem[: self.MEM8]
return out48
def open_instance(mode: int) -> ctypes.c_void_p:
data_custom = 21
if mode in [FREEDV_MODE.data_ofdm_500.value, FREEDV_MODE.data_ofdm_2438.value]:
#if mode in [FREEDV_MODE.data_ofdm_500.value, FREEDV_MODE.data_ofdm_2438.value, FREEDV_MODE.data_qam_2438]:
custom_params = ofdm_configurations[mode]
return ctypes.cast(
api.freedv_open_advanced(
data_custom,
ctypes.byref(custom_params),
),
ctypes.c_void_p,
)
else:
if mode not in [data_custom]:
return ctypes.cast(api.freedv_open(mode), ctypes.c_void_p)
def get_bytes_per_frame(mode: int) -> int:
"""
Provide bytes per frame information for accessing from data handler
:param mode: Codec2 mode to query
:type mode: int or str
:return: Bytes per frame of the supplied codec2 data mode
:rtype: int
"""
freedv = open_instance(mode)
# TODO add close session
# get number of bytes per frame for mode
return int(api.freedv_get_bits_per_modem_frame(freedv) / 8)
MAX_UW_BITS = 64#192
class OFDM_CONFIG(ctypes.Structure):
_fields_ = [
("tx_centre", ctypes.c_float), # TX Centre Audio Frequency
("rx_centre", ctypes.c_float), # RX Centre Audio Frequency
("fs", ctypes.c_float), # Sample Frequency
("rs", ctypes.c_float), # Symbol Rate
("ts", ctypes.c_float), # Symbol duration
("tcp", ctypes.c_float), # Cyclic Prefix duration
("timing_mx_thresh", ctypes.c_float), # Threshold for timing metrics
("nc", ctypes.c_int), # Number of carriers
("ns", ctypes.c_int), # Number of Symbol frames
("np", ctypes.c_int), # Number of freedata_server frames per packet
("bps", ctypes.c_int), # Bits per Symbol
("txtbits", ctypes.c_int), # Number of auxiliary data bits
("nuwbits", ctypes.c_int), # Number of unique word bits
("bad_uw_errors", ctypes.c_int), # Threshold for bad unique word detection
("ftwindowwidth", ctypes.c_int), # Filter window width
("edge_pilots", ctypes.c_int), # Edge pilots configuration
("state_machine", ctypes.c_char_p), # Name of sync state machine used
("codename", ctypes.c_char_p), # LDPC codename
("tx_uw", ctypes.c_uint8 * MAX_UW_BITS), # User defined unique word
("amp_est_mode", ctypes.c_int), # Amplitude estimator algorithm mode
("tx_bpf_en", ctypes.c_bool), # TX BPF enable flag
("rx_bpf_en", ctypes.c_bool), # RX BPF enable flag
("tx_bpf_proto", ctypes.POINTER(ctypes.c_float)), # low pass prototype for complex BPF
("tx_bpf_proto_n", ctypes.c_int), # number of taps in low pass prototype
("foff_limiter", ctypes.c_bool), # Frequency offset limiter enable flag
("amp_scale", ctypes.c_float), # Amplitude scale factor
("clip_gain1", ctypes.c_float), # Pre-clipping gain
("clip_gain2", ctypes.c_float), # Post-clipping gain
("clip_en", ctypes.c_bool), # Clipping enable flag
("mode", ctypes.c_char * 16), # OFDM mode in string form
("data_mode", ctypes.c_char_p), # Data mode ("streaming", "burst", etc.)
("fmin", ctypes.c_float), # Minimum frequency for tuning range
("fmax", ctypes.c_float), # Maximum frequency for tuning range
]
class FREEDV_ADVANCED(ctypes.Structure):
"""Advanced structure for fsk and ofdm modes"""
_fields_ = [
("interleave_frames", ctypes.c_int),
("M", ctypes.c_int),
("Rs", ctypes.c_int),
("Fs", ctypes.c_int),
("first_tone", ctypes.c_int),
("tone_spacing", ctypes.c_int),
("codename", ctypes.c_char_p),
("config", ctypes.POINTER(OFDM_CONFIG))
]
api.freedv_open_advanced.argtypes = [ctypes.c_int, ctypes.POINTER(FREEDV_ADVANCED)]
api.freedv_open_advanced.restype = ctypes.c_void_p
def create_default_ofdm_config():
ofdm_default_config = OFDM_CONFIG(
tx_centre=1500.0,
rx_centre=1500.0,
fs=8000.0,
rs=62.5,
ts=0.016,
tcp=0.006,
timing_mx_thresh=0.10,
nc=9,
ns=5,
np=29,
bps=2,
txtbits=0,
nuwbits=40,
bad_uw_errors=10,
ftwindowwidth=80,
edge_pilots=False,
state_machine="data".encode('utf-8'),
codename="H_1024_2048_4f".encode('utf-8'),
tx_uw=(c_uint8 * MAX_UW_BITS)(*([0] * MAX_UW_BITS)),
amp_est_mode=1,
tx_bpf_en=False,
rx_bpf_en=False,
tx_bpf_proto=codec2_filter_coeff.testFilter,
tx_bpf_proto_n=int(ctypes.sizeof(codec2_filter_coeff.testFilter) / ctypes.sizeof(ctypes.c_float)),
foff_limiter=False,
amp_scale=300E3,
clip_gain1=2.2,
clip_gain2=0.8,
clip_en=False,
mode="CUSTOM".encode('utf-8'),
data_mode="streaming".encode('utf-8'),
fmin=-50.0,
fmax=50.0,
)
return FREEDV_ADVANCED(
interleave_frames = 0,
M = 2,
Rs = 100,
Fs = 8000,
first_tone = 1000,
tone_spacing = 200,
codename = "H_256_512_4".encode("utf-8"),
config = ctypes.pointer(ofdm_default_config),
)
def create_tx_uw(nuwbits, uw_sequence):
"""
Creates a tx_uw ctypes array filled with the uw_sequence up to nuwbits.
If uw_sequence is shorter than nuwbits, the rest of the array is filled with zeros.
:param nuwbits: The number of bits for the tx_uw array, should not exceed MAX_UW_BITS.
:param uw_sequence: List of integers representing the unique word sequence.
:return: A ctypes array representing the tx_uw.
"""
# Ensure nuwbits does not exceed MAX_UW_BITS
if nuwbits > MAX_UW_BITS:
raise ValueError(f"nuwbits exceeds MAX_UW_BITS: {MAX_UW_BITS}")
tx_uw_array = (ctypes.c_uint8 * MAX_UW_BITS)(*([0] * MAX_UW_BITS))
for i in range(min(len(uw_sequence), MAX_UW_BITS)):
tx_uw_array[i] = uw_sequence[i]
return tx_uw_array
# ---------------- OFDM 500 Hz Bandwidth ---------------#
data_ofdm_500_config = create_default_ofdm_config()
data_ofdm_500_config.config.contents.ns = 5
data_ofdm_500_config.config.contents.np = 32
data_ofdm_500_config.config.contents.tcp = 0.006
data_ofdm_500_config.config.contents.ts = 0.016
data_ofdm_500_config.config.contents.rs = 1.0 / data_ofdm_500_config.config.contents.ts
data_ofdm_500_config.config.contents.nc = 8
data_ofdm_500_config.config.contents.timing_mx_thresh = 0.10
data_ofdm_500_config.config.contents.bad_uw_errors = 8
data_ofdm_500_config.config.contents.codename = "H_1024_2048_4f".encode('utf-8')
data_ofdm_500_config.config.contents.amp_scale = 305E3
data_ofdm_500_config.config.contents.nuwbits = 32
data_ofdm_500_config.config.contents.tx_uw = create_tx_uw(32, [0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1])
data_ofdm_500_config.config.contents.clip_gain1 = 2.4
data_ofdm_500_config.config.contents.clip_gain2 = 0.9
data_ofdm_500_config.config.contents.tx_bpf_en = True
data_ofdm_500_config.config.contents.tx_bpf_proto = codec2_filter_coeff.generate_filter_coefficients(8000, 600, 100)
data_ofdm_500_config.config.contents.tx_bpf_proto_n = 100
# ---------------- OFDM 2438 Hz Bandwidth 16200,9720 ---------------#
data_ofdm_2438_config = create_default_ofdm_config()
data_ofdm_2438_config.config.contents.ns = 5
data_ofdm_2438_config.config.contents.np = 52
data_ofdm_2438_config.config.contents.tcp = 0.004
data_ofdm_2438_config.config.contents.ts = 0.016
data_ofdm_2438_config.config.contents.rs = 1.0 / data_ofdm_2438_config.config.contents.ts
data_ofdm_2438_config.config.contents.nc = 39
data_ofdm_2438_config.config.contents.nuwbits = 24
data_ofdm_2438_config.config.contents.timing_mx_thresh = 0.10
data_ofdm_2438_config.config.contents.bad_uw_errors = 8
data_ofdm_2438_config.config.contents.amp_est_mode = 0
data_ofdm_2438_config.config.contents.amp_scale = 106E3
data_ofdm_2438_config.config.contents.codename = "H_16200_9720".encode('utf-8')
data_ofdm_2438_config.config.contents.clip_gain1 = 3.3
data_ofdm_2438_config.config.contents.clip_gain2 = 0.8
data_ofdm_2438_config.config.contents.timing_mx_thresh = 0.10
data_ofdm_2438_config.config.contents.tx_uw = create_tx_uw(24, [1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1])
data_ofdm_2438_config.config.contents.tx_bpf_en = True
data_ofdm_2438_config.config.contents.tx_bpf_proto = codec2_filter_coeff.generate_filter_coefficients(8000, 2500, 100)
data_ofdm_2438_config.config.contents.tx_bpf_proto_n = 100
# ---------------- QAM 2438 Hz Bandwidth ---------------#
"""
data_qam_2438_config = create_default_ofdm_config()
data_qam_2438_config.config.contents.bps = 4
data_qam_2438_config.config.contents.ns = 5
data_qam_2438_config.config.contents.np = 26
data_qam_2438_config.config.contents.tcp = 0.005
data_qam_2438_config.config.contents.ts = 0.018
data_qam_2438_config.config.contents.rs = 1.0 / data_qam_2438_config.config.contents.ts
data_qam_2438_config.config.contents.nc = 39
data_qam_2438_config.config.contents.nuwbits = 162
data_qam_2438_config.config.contents.timing_mx_thresh = 0.10
data_qam_2438_config.config.contents.bad_uw_errors = 50
data_qam_2438_config.config.contents.amp_est_mode = 0
data_qam_2438_config.config.contents.amp_scale = 145E3
data_qam_2438_config.config.contents.codename = b"H_16200_9720"
data_qam_2438_config.config.contents.clip_gain1 = 2.7
data_qam_2438_config.config.contents.clip_gain2 = 0.8
data_qam_2438_config.config.contents.timing_mx_thresh = 0.10
data_qam_2438_config.config.contents.tx_uw = create_tx_uw(162, [1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0])
"""
ofdm_configurations = {
FREEDV_MODE.data_ofdm_500.value: data_ofdm_500_config,
FREEDV_MODE.data_ofdm_2438.value: data_ofdm_2438_config,
#FREEDV_MODE.data_qam_2438.value: data_qam_2438_config
}
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