def test_001_t (self):
if os.path.exists("debug/transmission_frame.dat") and os.path.exists("debug/transmission_frame_trigger.dat"):
self.dab_params = dab.parameters.dab_parameters(1, 208.064e6, True)
self.src01 = blocks.file_source_make(gr.sizeof_float * 2 * self.dab_params.num_carriers,
"debug/transmission_frame.dat")
self.src02 = blocks.file_source_make(gr.sizeof_char, "debug/transmission_frame_trigger.dat")
self.dabplus = dab.dabplus_audio_decoder_ff(self.dab_params, 112, 54, 84, 2, True, False, True)
self.wav_sink = blocks.wavfile_sink_make("debug/music.wav", 2, 32000)
self.file_sink_left = blocks.file_sink_make(gr.sizeof_float, "debug/PCM_left.dat")
self.file_sink_right = blocks.file_sink_make(gr.sizeof_float, "debug/PCM_right.dat")
self.tb.connect(self.src01, (self.dabplus, 0), self.file_sink_left)
self.tb.connect(self.src02, (self.dabplus, 1), self.file_sink_right)
self.tb.connect((self.dabplus, 0), (self.wav_sink, 0))
self.tb.connect((self.dabplus, 1), (self.wav_sink, 1))
self.audio = audio.sink_make(32000)
self.tb.connect((self.dabplus, 0), (self.audio, 0))
self.tb.connect((self.dabplus, 1), (self.audio, 1))
self.tb.run()
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t (self):
if os.path.exists("debug/transmission_frame.dat") and os.path.exists("debug/transmission_frame_trigger.dat"):
self.dab_params = grdab.parameters.dab_parameters(1, 208.064e6, True)
self.src01 = blocks.file_source_make(gr.sizeof_float * 2 * self.dab_params.num_carriers,
"debug/transmission_frame.dat")
self.src02 = blocks.file_source_make(gr.sizeof_char, "debug/transmission_frame_trigger.dat")
self.dabplus = grdab.dabplus_audio_decoder_ff(self.dab_params, 112, 54, 84, 2, True, False, True)
self.wav_sink = blocks.wavfile_sink_make("debug/music.wav", 2, 32000)
self.file_sink_left = blocks.file_sink_make(gr.sizeof_float, "debug/PCM_left.dat")
self.file_sink_right = blocks.file_sink_make(gr.sizeof_float, "debug/PCM_right.dat")
self.tb.connect(self.src01, (self.dabplus, 0), self.file_sink_left)
self.tb.connect(self.src02, (self.dabplus, 1), self.file_sink_right)
self.tb.connect((self.dabplus, 0), (self.wav_sink, 0))
self.tb.connect((self.dabplus, 1), (self.wav_sink, 1))
self.audio = audio.sink_make(32000)
self.tb.connect((self.dabplus, 0), (self.audio, 0))
self.tb.connect((self.dabplus, 1), (self.audio, 1))
self.tb.run()
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t(self):
log = gr.logger("log")
if os.path.exists("debug/transmission_frame.dat") and os.path.exists(
"debug/transmission_frame_trigger.dat"):
self.dab_params = dab.parameters.dab_parameters(1, 208.064e6, True)
self.src01 = blocks.file_source_make(
gr.sizeof_float * 2 * self.dab_params.num_carriers,
"debug/transmission_frame.dat")
self.src02 = blocks.file_source_make(
gr.sizeof_char, "debug/transmission_frame_trigger.dat")
self.msc = dab.msc_decode(self.dab_params, 54, 84, 2, 1, 1)
self.firecode = dab.firecode_check_bb_make(14)
self.file_sink_subch_decoded = blocks.file_sink_make(
gr.sizeof_char, "debug/subch_decoded.dat")
self.file_sink_firecode_checked = blocks.file_sink_make(
gr.sizeof_char, "debug/checked_firecode.dat")
self.tb.connect(self.src01, (self.msc, 0), self.firecode,
self.file_sink_firecode_checked)
self.tb.connect(self.src02, (self.msc, 1))
self.tb.connect(self.msc, self.file_sink_subch_decoded)
self.tb.run()
else:
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t(self):
if os.path.exists("debug/PCM_left.dat") and os.path.exists(
"debug/PCM_right.dat"):
self.src_left = blocks.file_source_make(gr.sizeof_float,
"debug/PCM_left.dat")
self.src_right = blocks.file_source_make(gr.sizeof_float,
"debug/PCM_right.dat")
self.f2s_1 = blocks.float_to_short_make(1, 32767)
self.f2s_2 = blocks.float_to_short_make(1, 32767)
self.mp4_encode = dab.mp4_encode_sb_make(14, 2, 32000, 1)
self.mp4_decode = dab.mp4_decode_bs_make(14)
self.s2f_1 = blocks.short_to_float_make(1, 32767)
self.s2f_2 = blocks.short_to_float_make(1, 32767)
self.audio = audio.sink_make(32000)
self.tb.connect(self.src_left, self.f2s_1, (self.mp4_encode, 0))
self.tb.connect(self.src_right, self.f2s_2, (self.mp4_encode, 1))
self.tb.connect(self.mp4_encode, self.mp4_decode, self.s2f_1,
(self.audio, 0))
self.tb.connect((self.mp4_decode, 1), self.s2f_2, (self.audio, 1))
self.tb.run()
# check data
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
def test_001_t (self):
log = gr.logger("log")
if os.path.exists("debug/rs_encoded.dat") and os.path.exists("debug/rs_encoded.dat"):
self.dp = dab.parameters.dab_parameters(1, 208.064e6, True)
# sources
self.fib_src = dab.fib_source_b_make(1, 1, 'Galaxy_News', 'Wasteland_Radio', 'Country_Mix01', 0x09, [2], [14])
self.fib_pack = blocks.unpacked_to_packed_bb_make(1, gr.GR_MSB_FIRST)
self.subch_src01 = blocks.file_source_make(gr.sizeof_char, "debug/rs_encoded.dat", True)
self.subch_src02 = blocks.file_source_make(gr.sizeof_char, "debug/rs_encoded_2.dat", True)
# encoder
self.fib_enc = dab.fic_encode(self.dp)
self.msc_encoder = dab.msc_encode(self.dp, 14, 2)
self.msc_encoder2 = dab.msc_encode(self.dp, 14, 2)
# multiplexer
self.mux = dab.dab_transmission_frame_mux_bb_make(1, 2, [84, 84])
# mapper
self.unpack = blocks.packed_to_unpacked_bb_make(1, gr.GR_MSB_FIRST)
self.map = dab.mapper_bc_make(self.dp.num_carriers)
# demapper
self.s2v = blocks.stream_to_vector_make(gr.sizeof_gr_complex, self.dp.num_carriers)
self.soft_interleaver = dab.complex_to_interleaved_float_vcf_make(self.dp.num_carriers)
# decode
self.fic_decoder = dab.fic_decode(self.dp)
self.msc_dec = dab.dabplus_audio_decoder_ff(self.dp, 112, 0, 84, 2, True)
# audio sink
self.audio = audio.sink_make(32000)
# control stream
self.trigger_src = blocks.vector_source_b([1] + [0] * 74, True)
# connect everything
self.tb.connect(self.fib_src, self.fib_enc, (self.mux, 0))
self.tb.connect(self.subch_src01, self.msc_encoder, (self.mux, 1))
self.tb.connect(self.subch_src02, self.msc_encoder2, (self.mux, 2))
self.tb.connect((self.mux, 0), self.unpack, self.map, self.s2v, self.soft_interleaver, (self.msc_dec, 0))
self.tb.connect(self.soft_interleaver, (self.fic_decoder, 0))
self.tb.connect(self.trigger_src, (self.fic_decoder, 1))
self.tb.connect(self.trigger_src, (self.msc_dec, 1))
self.tb.connect((self.msc_dec, 0), (self.audio, 0))
self.tb.connect((self.msc_dec, 1), (self.audio, 1))
self.tb.run ()
pass
else:
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t (self):
log = gr.logger("log")
if os.path.exists("debug/transmission_frame.dat") and os.path.exists("debug/transmission_frame_trigger.dat"):
self.dab_params = grdab.parameters.dab_parameters(1 , 208.064e6, True)
self.src01 = blocks.file_source_make(gr.sizeof_float * 2*self.dab_params.num_carriers, "debug/transmission_frame.dat")
self.src02 = blocks.file_source_make(gr.sizeof_char, "debug/transmission_frame_trigger.dat")
self.msc = grdab.msc_decode(self.dab_params, 54, 84, 2, 1, 1)
self.firecode = grdab.firecode_check_bb_make(14)
self.file_sink_subch_decoded = blocks.file_sink_make(gr.sizeof_char, "debug/subch_decoded.dat")
self.file_sink_firecode_checked = blocks.file_sink_make(gr.sizeof_char, "debug/checked_firecode.dat")
self.tb.connect(self.src01, (self.msc, 0), self.firecode, self.file_sink_firecode_checked)
self.tb.connect(self.src02, (self.msc, 1))
self.tb.connect(self.msc, self.file_sink_subch_decoded)
self.tb.run ()
else:
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t(self):
if os.path.exists("debug/PCM_piano_left.dat") and os.path.exists(
"debug/PCM_piano_right.dat"):
self.src_left = blocks.file_source_make(
gr.sizeof_short, "debug/PCM_piano_left.dat")
self.src_right = blocks.file_source_make(
gr.sizeof_short, "debug/PCM_piano_right.dat")
self.mp2 = dab.mp2_encode_sb_make(14, 2, 48000)
self.file_sink = blocks.file_sink_make(gr.sizeof_char,
"debug/mp2_encoded.mp2")
self.tb.connect(self.src_left, (self.mp2, 0), self.file_sink)
self.tb.connect(self.src_right, (self.mp2, 1))
self.tb.run()
# check data
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t (self):
if os.path.exists("debug/mp2_encoded.dat"):
self.src_mp2 = blocks.file_source_make(gr.sizeof_char, "debug/mp2_encoded.dat")
self.unpack = blocks.packed_to_unpacked_bb_make(1, gr.GR_MSB_FIRST)
self.mp2_decode = grdab.mp2_decode_bs_make(14)
self.sink_left = blocks.file_sink_make(gr.sizeof_short, "debug/mp2_decoded_left.dat")
self.sink_right = blocks.file_sink_make(gr.sizeof_short, "debug/mp2_decoded_right.dat")
self.tb.connect(self.src_mp2, self.unpack, (self.mp2_decode, 0), self.sink_left)
self.tb.connect((self.mp2_decode, 1), self.sink_right)
self.tb.run()
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t (self):
if os.path.exists("debug/reed_solomon_repaired.dat"):
self.src = blocks.file_source_make(gr.sizeof_char, "debug/reed_solomon_repaired.dat")
self.mp4 = grdab.mp4_decode_bs_make(14)
self.s2f_left = blocks.short_to_float_make(1, 32767)
self.s2f_right = blocks.short_to_float_make(1, 32767)
self.audio = audio.sink_make(32000)
self.tb.connect(self.src, (self.mp4, 0), self.s2f_left, (self.audio, 0))
self.tb.connect((self.mp4, 1), self.s2f_right, (self.audio, 1))
self.tb.run()
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def test_001_t(self):
if os.path.exists("debug/mp2_encoded.dat"):
self.src_mp2 = blocks.file_source_make(gr.sizeof_char,
"debug/mp2_encoded.dat")
self.unpack = blocks.packed_to_unpacked_bb_make(1, gr.GR_MSB_FIRST)
self.mp2_decode = dab.mp2_decode_bs_make(14)
self.sink_left = blocks.file_sink_make(
gr.sizeof_short, "debug/mp2_decoded_left.dat")
self.sink_right = blocks.file_sink_make(
gr.sizeof_short, "debug/mp2_decoded_right.dat")
self.tb.connect(self.src_mp2, self.unpack, (self.mp2_decode, 0),
self.sink_left)
self.tb.connect((self.mp2_decode, 1), self.sink_right)
self.tb.run()
else:
log = gr.logger("log")
log.debug("debug file not found - skipped test")
log.set_level("WARN")
pass
def __init__(self,
dab_mode,
frequency,
bit_rate,
address,
size,
protection,
audio_bit_rate,
dabplus,
use_usrp,
src_path,
sink_path="None"):
gr.top_block.__init__(self)
self.dab_mode = dab_mode
self.verbose = False
self.sample_rate = 2e6
self.dabplus = dabplus
self.use_usrp = use_usrp
self.src_path = src_path
self.sink_path = sink_path
gr.log.set_level("warn")
########################
# source
########################
if self.use_usrp:
self.src = uhd.usrp_source("", uhd.io_type.COMPLEX_FLOAT32, 1)
self.src.set_samp_rate(self.sample_rate)
self.src.set_antenna("TX/RX")
else:
print "using file source"
self.src = blocks.file_source_make(gr.sizeof_gr_complex,
self.src_path, False)
# set paramters to default mode
self.softbits = True
self.filter_input = True
self.autocorrect_sample_rate = False
self.resample_fixed = 1
self.correct_ffe = True
self.equalize_magnitude = True
self.frequency = frequency
self.dab_params = dab.parameters.dab_parameters(
self.dab_mode, self.sample_rate, self.verbose)
self.rx_params = dab.parameters.receiver_parameters(
self.dab_mode, self.softbits, self.filter_input,
self.autocorrect_sample_rate, self.resample_fixed, self.verbose,
self.correct_ffe, self.equalize_magnitude)
########################
# FFT and waterfall plot
########################
self.fft_plot = qtgui.freq_sink_c_make(1024,
fft.window.WIN_BLACKMAN_HARRIS,
self.frequency, 2e6, "FFT")
self.waterfall_plot = qtgui.waterfall_sink_c_make(
1024, fft.window.WIN_BLACKMAN_HARRIS, self.frequency, 2e6,
"Waterfall")
#self.time_plot = qtgui.time_sink_c_make(1024, 2e6, "Time")
########################
# OFDM demod
########################
self.demod = dab.ofdm_demod(self.dab_params, self.rx_params,
self.verbose)
########################
# SNR measurement
########################
self.v2s_snr = blocks.vector_to_stream_make(
gr.sizeof_gr_complex, self.dab_params.num_carriers)
self.snr_measurement = digital.mpsk_snr_est_cc_make(
digital.SNR_EST_SIMPLE, 10000)
self.constellation_plot = qtgui.const_sink_c_make(1024, "", 1)
########################
# FIC decoder
########################
self.fic_dec = dab.fic_decode(self.dab_params)
########################
# MSC decoder
########################
if self.dabplus:
self.dabplus = dab.dabplus_audio_decoder_ff(
self.dab_params, bit_rate, address, size, protection, True)
else:
self.msc_dec = dab.msc_decode(self.dab_params, address, size,
protection)
self.unpack = blocks.packed_to_unpacked_bb_make(1, gr.GR_MSB_FIRST)
self.mp2_dec = dab.mp2_decode_bs_make(bit_rate / 8)
self.s2f_left = blocks.short_to_float_make(1, 32767)
self.s2f_right = blocks.short_to_float_make(1, 32767)
self.gain_left = blocks.multiply_const_ff(1, 1)
self.gain_right = blocks.multiply_const_ff(1, 1)
########################
# audio sink
########################
self.valve_left = dab.valve_ff_make(True)
self.valve_right = dab.valve_ff_make(True)
self.audio = audio.sink_make(audio_bit_rate)
self.wav_sink = blocks.wavfile_sink_make("dab_audio.wav", 2,
audio_bit_rate)
########################
# Connections
########################
self.connect(self.src, self.fft_plot)
self.connect(self.src, self.waterfall_plot)
self.connect(self.src, self.demod, (self.fic_dec, 0))
self.connect((self.demod, 1), (self.fic_dec, 1))
if self.dabplus:
self.connect((self.demod, 0), (self.dabplus, 0))
self.connect((self.demod, 1), (self.dabplus, 1))
else:
self.connect((self.demod, 0), (self.msc_dec, 0), self.unpack,
self.mp2_dec)
self.connect((self.demod, 1), (self.msc_dec, 1))
self.connect((self.mp2_dec, 0), self.s2f_left, self.gain_left)
self.connect((self.mp2_dec, 1), self.s2f_right, self.gain_right)
self.connect((self.demod, 0), self.v2s_snr, self.snr_measurement,
self.constellation_plot)
# connect audio to sound card and file sink
if self.dabplus:
self.connect((self.dabplus, 0), (self.audio, 0))
self.connect((self.dabplus, 1), (self.audio, 1))
self.connect((self.dabplus, 0), self.valve_left,
(self.wav_sink, 0))
self.connect((self.dabplus, 1), self.valve_right,
(self.wav_sink, 1))
else:
self.connect(self.gain_left, (self.audio, 0))
self.connect(self.gain_right, (self.audio, 1))
self.connect(self.gain_left, self.valve_left, (self.wav_sink, 0))
self.connect(self.gain_right, self.valve_right, (self.wav_sink, 1))
# tune USRP frequency
if self.use_usrp:
self.set_freq(self.frequency)
# set gain
# if no gain was specified, use the mid-point in dB
g = self.src.get_gain_range()
self.rx_gain = float(g.start() + g.stop()) / 2
self.src.set_gain(self.rx_gain)
def __init__(self, frequency, bit_rate, address, size, protection, use_usrp, src_path, record_audio = False, sink_path = "None"):
gr.top_block.__init__(self)
self.dab_mode = 1
self.verbose = False
self.sample_rate = 2e6
self.use_usrp = use_usrp
self.src_path = src_path
self.record_audio = record_audio
self.sink_path = sink_path
########################
# source
########################
if self.use_usrp:
self.src = uhd.usrp_source("", uhd.io_type.COMPLEX_FLOAT32, 1)
self.src.set_samp_rate(self.sample_rate)
self.src.set_antenna("TX/RX")
else:
print "using file source"
self.src = blocks.file_source_make(gr.sizeof_gr_complex, self.src_path, True)
# set paramters to default mode
self.softbits = True
self.filter_input = True
self.autocorrect_sample_rate = False
self.resample_fixed = 1
self.correct_ffe = True
self.equalize_magnitude = True
self.frequency = frequency
self.dab_params = dab.parameters.dab_parameters(self.dab_mode, self.sample_rate, self.verbose)
self.rx_params = dab.parameters.receiver_parameters(self.dab_mode, self.softbits,
self.filter_input,
self.autocorrect_sample_rate,
self.resample_fixed,
self.verbose, self.correct_ffe,
self.equalize_magnitude)
########################
# OFDM demod
########################
self.demod = dab.ofdm_demod(self.dab_params, self.rx_params, self.verbose)
########################
# SNR measurement
########################
self.v2s_snr = blocks.vector_to_stream_make(gr.sizeof_gr_complex, 1536)
self.snr_measurement = digital.mpsk_snr_est_cc_make(digital.SNR_EST_SIMPLE, 10000)
self.null_sink_snr = blocks.null_sink_make(gr.sizeof_gr_complex)
########################
# FIC decoder
########################
self.fic_dec = dab.fic_decode(self.dab_params)
########################
# MSC decoder and audio sink
########################
self.dabplus = dab.dabplus_audio_decoder_ff(self.dab_params, bit_rate, address, size, protection, True)
self.audio = audio.sink_make(32000)
########################
# Connections
########################
self.connect(self.src, self.demod, (self.fic_dec, 0))
self.connect((self.demod, 1), (self.fic_dec, 1))
self.connect((self.demod, 0), (self.dabplus, 0))
self.connect((self.demod, 1), (self.dabplus, 1))
self.connect((self.demod, 0), self.v2s_snr, self.snr_measurement, self.null_sink_snr)
# connect audio to sound card
# left stereo channel
self.connect((self.dabplus, 0), (self.audio, 0))
# right stereo channel
self.connect((self.dabplus, 1), (self.audio, 1))
# connect file sink if recording is selected
if self.record_audio:
self.sink = blocks.wavfile_sink_make("dab_audio.wav", 2, 32000)
self.connect((self.dabplus, 0), (self.sink, 0))
self.connect((self.dabplus, 1), (self.sink, 1))
# tune USRP frequency
if self.use_usrp:
self.set_freq(self.frequency)
# set gain
# if no gain was specified, use the mid-point in dB
g = self.src.get_gain_range()
self.rx_gain = float(g.start() + g.stop()) / 2
self.src.set_gain(self.rx_gain)
