def __init__(self, vocoder, lo_freq, audio_rate, if_rate):
gr.hier_block2.__init__(self, "pipeline",
gr.io_signature(0, 0, 0), # Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
c4fm = op25_c4fm_mod.p25_mod_bf(output_sample_rate=audio_rate,
log=False,
verbose=True)
interp_factor = if_rate / audio_rate
low_pass = 2.88e3
interp_taps = filter.firdes.low_pass(1.0, if_rate, low_pass, low_pass * 0.1, filter.firdes.WIN_HANN)
interpolator = filter.interp_fir_filter_fff (int(interp_factor), interp_taps)
max_dev = 12.5e3
k = 2 * math.pi * max_dev / if_rate
adjustment = 1.5 # adjust for proper c4fm deviation level
modulator = analog.frequency_modulator_fc (k * adjustment)
# Local oscillator
lo = analog.sig_source_c (if_rate, # sample rate
analog.GR_SIN_WAVE, # waveform type
lo_freq, #frequency
1.0, # amplitude
0) # DC Offset
mixer = blocks.multiply_cc ()
self.connect (vocoder, c4fm, interpolator, modulator, (mixer, 0))
self.connect (lo, (mixer, 1))
self.connect (mixer, self)
def __init__(self, vocoder, lo_freq, audio_rate, if_rate):
gr.hier_block2.__init__(self, "pipeline",
gr.io_signature(0, 0, 0), # Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
c4fm = op25_c4fm_mod.p25_mod_bf(output_sample_rate=audio_rate,
log=False,
verbose=True)
interp_factor = if_rate / audio_rate
low_pass = 2.88e3
interp_taps = filter.firdes.low_pass(1.0, if_rate, low_pass, low_pass * 0.1, filter.firdes.WIN_HANN)
interpolator = filter.interp_fir_filter_fff (int(interp_factor), interp_taps)
max_dev = 12.5e3
k = 2 * math.pi * max_dev / if_rate
adjustment = 1.5 # adjust for proper c4fm deviation level
modulator = analog.frequency_modulator_fc (k * adjustment)
# Local oscillator
lo = analog.sig_source_c (if_rate, # sample rate
analog.GR_SIN_WAVE, # waveform type
lo_freq, #frequency
1.0, # amplitude
0) # DC Offset
mixer = blocks.multiply_cc ()
self.connect (vocoder, c4fm, interpolator, modulator, (mixer, 0))
self.connect (lo, (mixer, 1))
self.connect (mixer, self)
def __init__(self,
protocol=None,
mod_adjust=None,
output_gain=None,
if_freq=0,
if_rate=0,
verbose=0,
sample_rate=0,
bt=0):
from dv_tx import RC_FILTER
gr.hier_block2.__init__(
self,
"dv_modulator",
gr.io_signature(1, 1, gr.sizeof_char), # Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
MOD = p25_mod_bf(output_sample_rate=sample_rate,
dstar=(protocol == 'dstar'),
bt=bt,
rc=RC_FILTER[protocol])
AMP = blocks.multiply_const_ff(output_gain)
max_dev = 12.5e3
k = 2 * math.pi * max_dev / if_rate
FM_MOD = analog.frequency_modulator_fc(k * mod_adjust)
INTERP = filter.rational_resampler_fff(if_rate // sample_rate, 1)
MIXER = blocks.multiply_cc()
LO = analog.sig_source_c(if_rate, analog.GR_SIN_WAVE, if_freq, 1.0, 0)
self.connect(self, MOD, AMP, INTERP, FM_MOD, (MIXER, 0))
self.connect(LO, (MIXER, 1))
self.connect(MIXER, self)
def __init__(self,
protocol=None,
config_file=None,
mod_adjust=None,
gain_adjust=None,
output_gain=None,
if_freq=0,
if_rate=0,
verbose=0,
fullrate_mode=False,
sample_rate=0,
bt=0,
alt_input=None):
gr.hier_block2.__init__(
self,
"dv_modulator",
gr.io_signature(1, 1, gr.sizeof_short), # Input signature
gr.io_signature(1, 1, gr.sizeof_gr_complex)) # Output signature
from dv_tx import RC_FILTER
if protocol == 'dmr':
assert config_file
ENCODER = op25_repeater.ambe_encoder_sb(verbose)
ENCODER2 = op25_repeater.ambe_encoder_sb(verbose)
ENCODER2.set_gain_adjust(gain_adjust)
DMR = op25_repeater.dmr_bs_tx_bb(verbose, config_file)
self.connect(self, ENCODER, (DMR, 0))
if not alt_input:
alt_input = self
self.connect(alt_input, ENCODER2, (DMR, 1))
elif protocol == 'dstar':
assert config_file
ENCODER = op25_repeater.dstar_tx_sb(verbose, config_file)
elif protocol == 'p25':
ENCODER = op25_repeater.vocoder(
True, # 0=Decode,True=Encode
False, # Verbose flag
0, # flex amount
"", # udp ip address
0, # udp port
False) # dump raw u vectors
elif protocol == 'ysf':
assert config_file
ENCODER = op25_repeater.ysf_tx_sb(verbose, config_file,
fullrate_mode)
ENCODER.set_gain_adjust(gain_adjust)
MOD = p25_mod_bf(output_sample_rate=sample_rate,
dstar=(protocol == 'dstar'),
bt=bt,
rc=RC_FILTER[protocol])
AMP = blocks.multiply_const_ff(output_gain)
max_dev = 12.5e3
k = 2 * math.pi * max_dev / if_rate
FM_MOD = analog.frequency_modulator_fc(k * mod_adjust)
if protocol == 'dmr':
self.connect(DMR, MOD)
else:
self.connect(self, ENCODER, MOD)
INTERP = filter.rational_resampler_fff(if_rate / sample_rate, 1)
MIXER = blocks.multiply_cc()
LO = analog.sig_source_c(if_rate, analog.GR_SIN_WAVE, if_freq, 1.0, 0)
self.connect(MOD, AMP, INTERP, FM_MOD, (MIXER, 0))
self.connect(LO, (MIXER, 1))
self.connect(MIXER, self)
def __init__(self):
global output_gains, gain_adjust, gain_adjust_fullrate, mod_adjust
gr.top_block.__init__(self)
parser = OptionParser(option_class=eng_option)
parser.add_option("-a",
"--args",
type="string",
default="",
help="device args")
parser.add_option("-A",
"--alt-modulator-rate",
type="int",
default=50000,
help="when mod rate is not a submutiple of IF rate")
parser.add_option("-b",
"--bt",
type="float",
default=0.5,
help="specify bt value")
parser.add_option("-c",
"--config-file",
type="string",
default=None,
help="specify the config file name")
parser.add_option("-f",
"--file1",
type="string",
default=None,
help="specify the input file slot 1")
parser.add_option("-F",
"--file2",
type="string",
default=None,
help="specify the input file slot 2 (DMR)")
parser.add_option("-g",
"--gain",
type="float",
default=1.0,
help="input gain")
parser.add_option("-i",
"--if-rate",
type="int",
default=480000,
help="output rate to sdr")
parser.add_option(
"-I",
"--audio-input",
type="string",
default="",
help="pcm input device name. E.g., hw:0,0 or /dev/dsp")
parser.add_option("-k",
"--symbol-sink",
type="string",
default=None,
help="write symbols to file (optional)")
parser.add_option("-N",
"--gains",
type="string",
default=None,
help="gain settings")
parser.add_option(
"-O",
"--audio-output",
type="string",
default="default",
help="pcm output device name. E.g., hw:0,0 or /dev/dsp")
parser.add_option("-o",
"--output-file",
type="string",
default=None,
help="specify the output file")
parser.add_option("-p",
"--protocol",
type="choice",
default=None,
choices=('dmr', 'dstar', 'p25', 'ysf'),
help="specify protocol: dmr, dstar, p25, ysf")
parser.add_option("-q",
"--frequency-correction",
type="float",
default=0.0,
help="ppm")
parser.add_option("-Q",
"--frequency",
type="float",
default=0.0,
help="Hz")
parser.add_option("-r",
"--repeat",
action="store_true",
default=False,
help="input file repeat")
parser.add_option("-R",
"--fullrate-mode",
action="store_true",
default=False,
help="ysf fullrate")
parser.add_option("-s",
"--modulator-rate",
type="int",
default=48000,
help="must be submultiple of IF rate - see also -A")
parser.add_option("-S",
"--alsa-rate",
type="int",
default=48000,
help="sound source/sink sample rate")
parser.add_option("-t",
"--test",
type="string",
default=None,
help="test pattern symbol file")
parser.add_option("-v",
"--verbose",
type="int",
default=0,
help="additional output")
(options, args) = parser.parse_args()
max_inputs = 1
if options.protocol is None:
print 'protocol [-p] option missing'
sys.exit(0)
if options.protocol == 'ysf' or options.protocol == 'dmr' or options.protocol == 'dstar':
assert options.config_file # dstar, dmr and ysf require config file ("-c FILENAME" option)
output_gain = output_gains[options.protocol]
if options.test: # input file is in symbols of size=char
ENCODER = blocks.file_source(gr.sizeof_char, options.test, True)
elif options.protocol == 'dmr':
max_inputs = 2
ENCODER = op25_repeater.ambe_encoder_sb(options.verbose)
ENCODER2 = op25_repeater.ambe_encoder_sb(options.verbose)
ENCODER2.set_gain_adjust(gain_adjust['dmr'])
DMR = op25_repeater.dmr_bs_tx_bb(options.verbose,
options.config_file)
self.connect(ENCODER, (DMR, 0))
self.connect(ENCODER2, (DMR, 1))
elif options.protocol == 'dstar':
ENCODER = op25_repeater.dstar_tx_sb(options.verbose,
options.config_file)
elif options.protocol == 'p25':
ENCODER = op25_repeater.vocoder(
True, # 0=Decode,True=Encode
False, # Verbose flag
0, # flex amount
"", # udp ip address
0, # udp port
False) # dump raw u vectors
elif options.protocol == 'ysf':
ENCODER = op25_repeater.ysf_tx_sb(options.verbose,
options.config_file,
options.fullrate_mode)
if options.fullrate_mode:
ENCODER.set_gain_adjust(gain_adjust_fullrate['ysf'])
else:
ENCODER.set_gain_adjust(gain_adjust['ysf'])
if options.protocol == 'p25' and not options.test:
ENCODER.set_gain_adjust(gain_adjust_fullrate[options.protocol])
elif not options.test and not options.protocol == 'ysf':
ENCODER.set_gain_adjust(gain_adjust[options.protocol])
nfiles = 0
if options.file1:
nfiles += 1
if options.file2 and options.protocol == 'dmr':
nfiles += 1
if nfiles < max_inputs and not options.test:
AUDIO = audio.source(options.alsa_rate, options.audio_input)
lpf_taps = filter.firdes.low_pass(1.0, options.alsa_rate, 3400.0,
3400 * 0.1,
filter.firdes.WIN_HANN)
audio_rate = 8000
AUDIO_DECIM = filter.fir_filter_fff(
int(options.alsa_rate / audio_rate), lpf_taps)
AUDIO_SCALE = blocks.multiply_const_ff(32767.0 * options.gain)
AUDIO_F2S = blocks.float_to_short()
self.connect(AUDIO, AUDIO_DECIM, AUDIO_SCALE, AUDIO_F2S)
if options.file1:
IN1 = blocks.file_source(gr.sizeof_short, options.file1,
options.repeat)
S2F1 = blocks.short_to_float()
AMP1 = blocks.multiply_const_ff(options.gain)
F2S1 = blocks.float_to_short()
self.connect(IN1, S2F1, AMP1, F2S1, ENCODER)
elif not options.test:
self.connect(AUDIO_F2S, ENCODER)
if options.protocol == 'dmr':
if options.file2:
IN2 = blocks.file_source(gr.sizeof_short, options.file2,
options.repeat)
S2F2 = blocks.short_to_float()
AMP2 = blocks.multiply_const_ff(options.gain)
F2S2 = blocks.float_to_short()
self.connect(IN2, S2F2, AMP2, F2S2, ENCODER2)
else:
self.connect(AUDIO_F2S, ENCODER2)
MOD = p25_mod_bf(output_sample_rate=options.modulator_rate,
dstar=(options.protocol == 'dstar'),
bt=options.bt,
rc=RC_FILTER[options.protocol])
AMP = blocks.multiply_const_ff(output_gain)
if options.output_file:
OUT = blocks.file_sink(gr.sizeof_float, options.output_file)
elif not options.args:
OUT = audio.sink(options.alsa_rate, options.audio_output)
if options.symbol_sink:
SYMBOL_SINK = blocks.file_sink(gr.sizeof_char, options.symbol_sink)
if options.protocol == 'dmr' and not options.test:
self.connect(DMR, MOD)
if options.symbol_sink:
self.connect(DMR, SYMBOL_SINK)
else:
self.connect(ENCODER, MOD)
if options.symbol_sink:
self.connect(ENCODER, SYMBOL_SINK)
if options.args:
self.setup_sdr_output(options, mod_adjust[options.protocol])
f1 = float(options.if_rate) / options.modulator_rate
i1 = int(options.if_rate / options.modulator_rate)
if f1 - i1 > 1e-3:
f1 = float(options.if_rate) / options.alt_modulator_rate
i1 = int(options.if_rate / options.alt_modulator_rate)
if f1 - i1 > 1e-3:
print '*** Error, sdr rate %d not an integer multiple of alt modulator rate %d - ratio=%f' % (
options.if_rate, options.alt_modulator_rate, f1)
sys.exit(0)
a_resamp = filter.pfb.arb_resampler_fff(
options.alt_modulator_rate / float(options.modulator_rate))
sys.stderr.write(
'adding resampler for rate change %d ===> %d\n' %
(options.modulator_rate, options.alt_modulator_rate))
interp = filter.rational_resampler_fff(
options.if_rate / options.alt_modulator_rate, 1)
self.connect(MOD, AMP, a_resamp, interp, self.fm_modulator,
self.u)
else:
interp = filter.rational_resampler_fff(
options.if_rate / options.modulator_rate, 1)
self.connect(MOD, AMP, interp, self.fm_modulator, self.u)
else:
self.connect(MOD, AMP, OUT)