From ec2d40b8db3f078a8f8f7ab06dd1fcf07e907548 Mon Sep 17 00:00:00 2001
From: Ben Reynwar <ben@reynwar.net>
Date: Mon, 3 Jun 2013 16:54:24 -0700
Subject: uninstalled imports: Fixed gr-audio and gr-atsc.
---
gr-atsc/python/CMakeLists.txt | 68 -----------
gr-atsc/python/README | 34 ------
gr-atsc/python/__init__.py | 28 -----
gr-atsc/python/all_atsc.py | 142 -----------------------
gr-atsc/python/atsc/CMakeLists.txt | 67 +++++++++++
gr-atsc/python/atsc/README | 34 ++++++
gr-atsc/python/atsc/__init__.py | 34 ++++++
gr-atsc/python/atsc/all_atsc.py | 142 +++++++++++++++++++++++
gr-atsc/python/atsc/atsc_utils.py | 75 ++++++++++++
gr-atsc/python/atsc/btl-fsd.py | 48 ++++++++
gr-atsc/python/atsc/fpll.py | 88 ++++++++++++++
gr-atsc/python/atsc/interp.py | 66 +++++++++++
gr-atsc/python/atsc/interp_short.py | 78 +++++++++++++
gr-atsc/python/atsc/qa_atsc.py | 225 ++++++++++++++++++++++++++++++++++++
gr-atsc/python/atsc/viterbi-out.py | 58 ++++++++++
gr-atsc/python/atsc/xlate.py | 58 ++++++++++
gr-atsc/python/atsc_utils.py | 75 ------------
gr-atsc/python/btl-fsd.py | 48 --------
gr-atsc/python/fpll.py | 88 --------------
gr-atsc/python/interp.py | 66 -----------
gr-atsc/python/interp_short.py | 78 -------------
gr-atsc/python/qa_atsc.py | 225 ------------------------------------
gr-atsc/python/viterbi-out.py | 58 ----------
gr-atsc/python/xlate.py | 58 ----------
24 files changed, 973 insertions(+), 968 deletions(-)
delete mode 100644 gr-atsc/python/CMakeLists.txt
delete mode 100644 gr-atsc/python/README
delete mode 100644 gr-atsc/python/__init__.py
delete mode 100644 gr-atsc/python/all_atsc.py
create mode 100644 gr-atsc/python/atsc/CMakeLists.txt
create mode 100644 gr-atsc/python/atsc/README
create mode 100644 gr-atsc/python/atsc/__init__.py
create mode 100644 gr-atsc/python/atsc/all_atsc.py
create mode 100644 gr-atsc/python/atsc/atsc_utils.py
create mode 100755 gr-atsc/python/atsc/btl-fsd.py
create mode 100755 gr-atsc/python/atsc/fpll.py
create mode 100755 gr-atsc/python/atsc/interp.py
create mode 100755 gr-atsc/python/atsc/interp_short.py
create mode 100755 gr-atsc/python/atsc/qa_atsc.py
create mode 100755 gr-atsc/python/atsc/viterbi-out.py
create mode 100755 gr-atsc/python/atsc/xlate.py
delete mode 100644 gr-atsc/python/atsc_utils.py
delete mode 100755 gr-atsc/python/btl-fsd.py
delete mode 100755 gr-atsc/python/fpll.py
delete mode 100755 gr-atsc/python/interp.py
delete mode 100755 gr-atsc/python/interp_short.py
delete mode 100755 gr-atsc/python/qa_atsc.py
delete mode 100755 gr-atsc/python/viterbi-out.py
delete mode 100755 gr-atsc/python/xlate.py
(limited to 'gr-atsc/python')
diff --git a/gr-atsc/python/CMakeLists.txt b/gr-atsc/python/CMakeLists.txt
deleted file mode 100644
index ddc4aba5b5..0000000000
--- a/gr-atsc/python/CMakeLists.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-# Copyright 2011-2012 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-
-########################################################################
-# Install python examples
-########################################################################
-include(GrPython)
-
-GR_PYTHON_INSTALL(
- FILES
- __init__.py
- DESTINATION ${GR_PYTHON_DIR}/gnuradio/atsc
- COMPONENT "atsc_python"
-)
-
-GR_PYTHON_INSTALL(
- PROGRAMS
- btl-fsd.py
- fpll.py
- interp.py
- xlate.py
- viterbi-out.py
- DESTINATION ${GR_PKG_DATA_DIR}/examples/atsc
- COMPONENT "atsc_examples"
-)
-
-install(
- FILES README
- DESTINATION ${GR_PKG_DATA_DIR}/examples/atsc
- COMPONENT "atsc_examples"
-)
-
-########################################################################
-# Handle the unit tests
-########################################################################
-if(ENABLE_TESTING)
-
-list(APPEND GR_TEST_PYTHON_DIRS
- ${CMAKE_BINARY_DIR}/gr-atsc/python
- ${CMAKE_BINARY_DIR}/gr-atsc/swig
- ${CMAKE_BINARY_DIR}/gr-blocks/python
- ${CMAKE_BINARY_DIR}/gr-blocks/swig
-)
-list(APPEND GR_TEST_TARGET_DEPS gnuradio-atsc gnuradio-fec gnuradio-filter gnuradio-analog gnuradio-fft)
-
-include(GrTest)
-file(GLOB py_qa_test_files "qa_*.py")
-foreach(py_qa_test_file ${py_qa_test_files})
- get_filename_component(py_qa_test_name ${py_qa_test_file} NAME_WE)
- GR_ADD_TEST(${py_qa_test_name} ${PYTHON_EXECUTABLE} ${PYTHON_DASH_B} ${py_qa_test_file})
-endforeach(py_qa_test_file)
-endif(ENABLE_TESTING)
diff --git a/gr-atsc/python/README b/gr-atsc/python/README
deleted file mode 100644
index 74d6ba134c..0000000000
--- a/gr-atsc/python/README
+++ /dev/null
@@ -1,34 +0,0 @@
-Decoding ATSC using 19.2MSps rate over 5 processes
---------------------------------------------------
-
-1) Verify signal, adjust antenna and find best gain setting using uhd_fft.py,
-station frequency from the fcc video database, and sample rate to 6.4e6.
-
-2) Capture data - adjust gain (-g) frequency (-f) and which side
-the tvrx is on to fit your local setup:
-
-uhd_rx_cfile.py -s --samp-rate=6.4e6 -g 65 -f 503e6 atsc_data_6-4m_complex
-
-You probably still need fast disks to take the data, like a raid-0 set of
-striped sata drives. Make sure there are no or very few Ou overruns. Saving
-the raw usrp data in 'short' form halves the disk space/bus bandwidth that
-the usual complex form uses.
-
-3) Make pipes:
-
-mkfifo /tmp/atsc_pipe_1
-mkfifo /tmp/atsc_pipe_2
-mkfifo /tmp/atsc_pipe_3
-mkfifo /tmp/atsc_pipe_4
-mkfifo /tmp/atsc_pipe_5
-
-4) In seperate windows run processes:
-
-./interp_short.py <input rf data at 6.4Msps>
-./xlate.py
-./fpll.py
-./btl-fsd.py
-./viterbi-out.py <output mpeg transport stream>
-
-
-
diff --git a/gr-atsc/python/__init__.py b/gr-atsc/python/__init__.py
deleted file mode 100644
index e59fec399d..0000000000
--- a/gr-atsc/python/__init__.py
+++ /dev/null
@@ -1,28 +0,0 @@
-#
-# Copyright 2013 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-# The presence of this file turns this directory into a Python package
-
-'''
-Blocks and utilities for ATSC (Advanced Television Systems Committee) module.
-'''
-
-from atsc_swig import *
diff --git a/gr-atsc/python/all_atsc.py b/gr-atsc/python/all_atsc.py
deleted file mode 100644
index 7cac785149..0000000000
--- a/gr-atsc/python/all_atsc.py
+++ /dev/null
@@ -1,142 +0,0 @@
-#!/usr/bin/env /usr/bin/python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-# This module starts the atsc processing chain taking the captured
-# off-air signal created with:
-#
-# uhd_rx_cfile.py --samp-rate=6.4e6
-# -f <center of tv signal channel freq>
-# -g <appropriate gain for best signal / noise>
-# -s output shorts
-#
-# All this module does is multiply the sample rate by 3, from 6.4e6 to
-# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
-# and a transition band width of .5MHz. Center of the tv channels is
-# then at 0 with edges at -3.2MHz and 3.2MHz.
-
-from gnuradio import gr, atsc
-from gnuradio import filter
-from gnuradio import blocks
-import sys, os, math
-
-def graph (args):
-
- nargs = len(args)
- if nargs == 2:
- infile = args[0]
- outfile = args[1]
- else:
- raise ValueError('usage: interp.py input_file output_file\n')
-
- tb = gr.top_block ()
-
- # Convert to a from shorts to a stream of complex numbers.
- srcf = blocks.file_source (gr.sizeof_short,infile)
- s2ss = blocks.stream_to_streams(gr.sizeof_short,2)
- s2f1 = blocks.short_to_float()
- s2f2 = blocks.short_to_float()
- src0 = blocks.float_to_complex()
- tb.connect(srcf, s2ss)
- tb.connect((s2ss, 0), s2f1, (src0, 0))
- tb.connect((s2ss, 1), s2f2, (src0, 1))
-
- # Low pass filter it and increase sample rate by a factor of 3.
- lp_coeffs = filter.firdes.low_pass ( 3, 19.2e6, 3.2e6, .5e6, filter.firdes.WIN_HAMMING )
- lp = filter.interp_fir_filter_ccf ( 3, lp_coeffs )
- tb.connect(src0, lp)
-
- # Upconvert it.
- duc_coeffs = filter.firdes.low_pass ( 1, 19.2e6, 9e6, 1e6, filter.firdes.WIN_HAMMING )
- duc = filter.freq_xlating_fir_filter_ccf ( 1, duc_coeffs, 5.75e6, 19.2e6 )
- # Discard the imaginary component.
- c2f = blocks.complex_to_float()
- tb.connect(lp, duc, c2f)
-
- # Frequency Phase Lock Loop
- input_rate = 19.2e6
- IF_freq = 5.75e6
- # 1/2 as wide because we're designing lp filter
- symbol_rate = atsc.ATSC_SYMBOL_RATE/2.
- NTAPS = 279
- tt = filter.firdes.root_raised_cosine (1.0, input_rate, symbol_rate, .115, NTAPS)
- # heterodyne the low pass coefficients up to the specified bandpass
- # center frequency. Note that when we do this, the filter bandwidth
- # is effectively twice the low pass (2.69 * 2 = 5.38) and hence
- # matches the diagram in the ATSC spec.
- arg = 2. * math.pi * IF_freq / input_rate
- t=[]
- for i in range(len(tt)):
- t += [tt[i] * 2. * math.cos(arg * i)]
- rrc = filter.fir_filter_fff(1, t)
-
- fpll = atsc.fpll()
-
- pilot_freq = IF_freq - 3e6 + 0.31e6
- lower_edge = 6e6 - 0.31e6
- upper_edge = IF_freq - 3e6 + pilot_freq
- transition_width = upper_edge - lower_edge
- lp_coeffs = filter.firdes.low_pass(1.0,
- input_rate,
- (lower_edge + upper_edge) * 0.5,
- transition_width,
- filter.firdes.WIN_HAMMING);
-
- lp_filter = filter.fir_filter_fff(1,lp_coeffs)
-
- alpha = 1e-5
- iir = filter.single_pole_iir_filter_ff(alpha)
- remove_dc = blocks.sub_ff()
-
- tb.connect(c2f, fpll, lp_filter)
- tb.connect(lp_filter, iir)
- tb.connect(lp_filter, (remove_dc,0))
- tb.connect(iir, (remove_dc,1))
-
- # Bit Timing Loop, Field Sync Checker and Equalizer
-
- btl = atsc.bit_timing_loop()
- fsc = atsc.fs_checker()
- eq = atsc.equalizer()
- fsd = atsc.field_sync_demux()
-
- tb.connect(remove_dc, btl)
- tb.connect((btl, 0),(fsc, 0),(eq, 0),(fsd, 0))
- tb.connect((btl, 1),(fsc, 1),(eq, 1),(fsd, 1))
-
- # Viterbi
-
- viterbi = atsc.viterbi_decoder()
- deinter = atsc.deinterleaver()
- rs_dec = atsc.rs_decoder()
- derand = atsc.derandomizer()
- depad = atsc.depad()
- dst = blocks.file_sink(gr.sizeof_char, outfile)
- tb.connect(fsd, viterbi, deinter, rs_dec, derand, depad, dst)
-
- dst2 = blocks.file_sink(gr.sizeof_gr_complex, "atsc_complex.data")
- tb.connect(src0, dst2)
-
- tb.run ()
-
-if __name__ == '__main__':
- graph (sys.argv[1:])
-
-
diff --git a/gr-atsc/python/atsc/CMakeLists.txt b/gr-atsc/python/atsc/CMakeLists.txt
new file mode 100644
index 0000000000..061f105572
--- /dev/null
+++ b/gr-atsc/python/atsc/CMakeLists.txt
@@ -0,0 +1,67 @@
+# Copyright 2011-2012 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+
+########################################################################
+# Install python examples
+########################################################################
+include(GrPython)
+
+GR_PYTHON_INSTALL(
+ FILES
+ __init__.py
+ DESTINATION ${GR_PYTHON_DIR}/gnuradio/atsc
+ COMPONENT "atsc_python"
+)
+
+GR_PYTHON_INSTALL(
+ PROGRAMS
+ btl-fsd.py
+ fpll.py
+ interp.py
+ xlate.py
+ viterbi-out.py
+ DESTINATION ${GR_PKG_DATA_DIR}/examples/atsc
+ COMPONENT "atsc_examples"
+)
+
+install(
+ FILES README
+ DESTINATION ${GR_PKG_DATA_DIR}/examples/atsc
+ COMPONENT "atsc_examples"
+)
+
+########################################################################
+# Handle the unit tests
+########################################################################
+if(ENABLE_TESTING)
+
+ set(GR_TEST_TARGET_DEPS "")
+ set(GR_TEST_LIBRARY_DIRS "")
+ set(GR_TEST_PYTHON_DIRS
+ ${CMAKE_BINARY_DIR}/gruel/src/python
+ ${CMAKE_BINARY_DIR}/gnuradio-runtime/python
+ )
+
+ include(GrTest)
+ file(GLOB py_qa_test_files "qa_*.py")
+ foreach(py_qa_test_file ${py_qa_test_files})
+ get_filename_component(py_qa_test_name ${py_qa_test_file} NAME_WE)
+ GR_ADD_TEST(${py_qa_test_name} ${PYTHON_EXECUTABLE} ${PYTHON_DASH_B} ${py_qa_test_file})
+ endforeach(py_qa_test_file)
+endif(ENABLE_TESTING)
diff --git a/gr-atsc/python/atsc/README b/gr-atsc/python/atsc/README
new file mode 100644
index 0000000000..74d6ba134c
--- /dev/null
+++ b/gr-atsc/python/atsc/README
@@ -0,0 +1,34 @@
+Decoding ATSC using 19.2MSps rate over 5 processes
+--------------------------------------------------
+
+1) Verify signal, adjust antenna and find best gain setting using uhd_fft.py,
+station frequency from the fcc video database, and sample rate to 6.4e6.
+
+2) Capture data - adjust gain (-g) frequency (-f) and which side
+the tvrx is on to fit your local setup:
+
+uhd_rx_cfile.py -s --samp-rate=6.4e6 -g 65 -f 503e6 atsc_data_6-4m_complex
+
+You probably still need fast disks to take the data, like a raid-0 set of
+striped sata drives. Make sure there are no or very few Ou overruns. Saving
+the raw usrp data in 'short' form halves the disk space/bus bandwidth that
+the usual complex form uses.
+
+3) Make pipes:
+
+mkfifo /tmp/atsc_pipe_1
+mkfifo /tmp/atsc_pipe_2
+mkfifo /tmp/atsc_pipe_3
+mkfifo /tmp/atsc_pipe_4
+mkfifo /tmp/atsc_pipe_5
+
+4) In seperate windows run processes:
+
+./interp_short.py <input rf data at 6.4Msps>
+./xlate.py
+./fpll.py
+./btl-fsd.py
+./viterbi-out.py <output mpeg transport stream>
+
+
+
diff --git a/gr-atsc/python/atsc/__init__.py b/gr-atsc/python/atsc/__init__.py
new file mode 100644
index 0000000000..155baa2547
--- /dev/null
+++ b/gr-atsc/python/atsc/__init__.py
@@ -0,0 +1,34 @@
+#
+# Copyright 2013 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+# The presence of this file turns this directory into a Python package
+
+'''
+Blocks and utilities for ATSC (Advanced Television Systems Committee) module.
+'''
+import os
+
+try:
+ from atsc_swig import *
+except ImportError:
+ dirname, filename = os.path.split(os.path.abspath(__file__))
+ __path__.append(os.path.join(dirname, "..", "..", "swig"))
+ from atsc_swig import *
diff --git a/gr-atsc/python/atsc/all_atsc.py b/gr-atsc/python/atsc/all_atsc.py
new file mode 100644
index 0000000000..7cac785149
--- /dev/null
+++ b/gr-atsc/python/atsc/all_atsc.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env /usr/bin/python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+# This module starts the atsc processing chain taking the captured
+# off-air signal created with:
+#
+# uhd_rx_cfile.py --samp-rate=6.4e6
+# -f <center of tv signal channel freq>
+# -g <appropriate gain for best signal / noise>
+# -s output shorts
+#
+# All this module does is multiply the sample rate by 3, from 6.4e6 to
+# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
+# and a transition band width of .5MHz. Center of the tv channels is
+# then at 0 with edges at -3.2MHz and 3.2MHz.
+
+from gnuradio import gr, atsc
+from gnuradio import filter
+from gnuradio import blocks
+import sys, os, math
+
+def graph (args):
+
+ nargs = len(args)
+ if nargs == 2:
+ infile = args[0]
+ outfile = args[1]
+ else:
+ raise ValueError('usage: interp.py input_file output_file\n')
+
+ tb = gr.top_block ()
+
+ # Convert to a from shorts to a stream of complex numbers.
+ srcf = blocks.file_source (gr.sizeof_short,infile)
+ s2ss = blocks.stream_to_streams(gr.sizeof_short,2)
+ s2f1 = blocks.short_to_float()
+ s2f2 = blocks.short_to_float()
+ src0 = blocks.float_to_complex()
+ tb.connect(srcf, s2ss)
+ tb.connect((s2ss, 0), s2f1, (src0, 0))
+ tb.connect((s2ss, 1), s2f2, (src0, 1))
+
+ # Low pass filter it and increase sample rate by a factor of 3.
+ lp_coeffs = filter.firdes.low_pass ( 3, 19.2e6, 3.2e6, .5e6, filter.firdes.WIN_HAMMING )
+ lp = filter.interp_fir_filter_ccf ( 3, lp_coeffs )
+ tb.connect(src0, lp)
+
+ # Upconvert it.
+ duc_coeffs = filter.firdes.low_pass ( 1, 19.2e6, 9e6, 1e6, filter.firdes.WIN_HAMMING )
+ duc = filter.freq_xlating_fir_filter_ccf ( 1, duc_coeffs, 5.75e6, 19.2e6 )
+ # Discard the imaginary component.
+ c2f = blocks.complex_to_float()
+ tb.connect(lp, duc, c2f)
+
+ # Frequency Phase Lock Loop
+ input_rate = 19.2e6
+ IF_freq = 5.75e6
+ # 1/2 as wide because we're designing lp filter
+ symbol_rate = atsc.ATSC_SYMBOL_RATE/2.
+ NTAPS = 279
+ tt = filter.firdes.root_raised_cosine (1.0, input_rate, symbol_rate, .115, NTAPS)
+ # heterodyne the low pass coefficients up to the specified bandpass
+ # center frequency. Note that when we do this, the filter bandwidth
+ # is effectively twice the low pass (2.69 * 2 = 5.38) and hence
+ # matches the diagram in the ATSC spec.
+ arg = 2. * math.pi * IF_freq / input_rate
+ t=[]
+ for i in range(len(tt)):
+ t += [tt[i] * 2. * math.cos(arg * i)]
+ rrc = filter.fir_filter_fff(1, t)
+
+ fpll = atsc.fpll()
+
+ pilot_freq = IF_freq - 3e6 + 0.31e6
+ lower_edge = 6e6 - 0.31e6
+ upper_edge = IF_freq - 3e6 + pilot_freq
+ transition_width = upper_edge - lower_edge
+ lp_coeffs = filter.firdes.low_pass(1.0,
+ input_rate,
+ (lower_edge + upper_edge) * 0.5,
+ transition_width,
+ filter.firdes.WIN_HAMMING);
+
+ lp_filter = filter.fir_filter_fff(1,lp_coeffs)
+
+ alpha = 1e-5
+ iir = filter.single_pole_iir_filter_ff(alpha)
+ remove_dc = blocks.sub_ff()
+
+ tb.connect(c2f, fpll, lp_filter)
+ tb.connect(lp_filter, iir)
+ tb.connect(lp_filter, (remove_dc,0))
+ tb.connect(iir, (remove_dc,1))
+
+ # Bit Timing Loop, Field Sync Checker and Equalizer
+
+ btl = atsc.bit_timing_loop()
+ fsc = atsc.fs_checker()
+ eq = atsc.equalizer()
+ fsd = atsc.field_sync_demux()
+
+ tb.connect(remove_dc, btl)
+ tb.connect((btl, 0),(fsc, 0),(eq, 0),(fsd, 0))
+ tb.connect((btl, 1),(fsc, 1),(eq, 1),(fsd, 1))
+
+ # Viterbi
+
+ viterbi = atsc.viterbi_decoder()
+ deinter = atsc.deinterleaver()
+ rs_dec = atsc.rs_decoder()
+ derand = atsc.derandomizer()
+ depad = atsc.depad()
+ dst = blocks.file_sink(gr.sizeof_char, outfile)
+ tb.connect(fsd, viterbi, deinter, rs_dec, derand, depad, dst)
+
+ dst2 = blocks.file_sink(gr.sizeof_gr_complex, "atsc_complex.data")
+ tb.connect(src0, dst2)
+
+ tb.run ()
+
+if __name__ == '__main__':
+ graph (sys.argv[1:])
+
+
diff --git a/gr-atsc/python/atsc/atsc_utils.py b/gr-atsc/python/atsc/atsc_utils.py
new file mode 100644
index 0000000000..fc2465bed2
--- /dev/null
+++ b/gr-atsc/python/atsc/atsc_utils.py
@@ -0,0 +1,75 @@
+#
+# Copyright 2006 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+import random
+import sys
+
+MPEG_SYNC_BYTE = 0x47
+
+def make_fake_transport_stream_packet(npkts):
+ """
+ Return a sequence of 8-bit ints that represents an MPEG Transport Stream packet.
+
+ Args:
+ npkts: how many 188-byte packets to return
+
+ FYI, each ATSC Data Frame contains two Data Fields, each of which contains
+ 312 data segments. Each transport stream packet maps to a data segment.
+ """
+ r = [0] * (npkts * 188)
+ i = 0
+ for j in range(npkts):
+ r[i+0] = MPEG_SYNC_BYTE
+ r[i+1] = random.randint(0, 127) # top bit (transport error bit) clear
+ i = i + 2
+ for n in range(186):
+ r[i + n] = random.randint(0, 255)
+ i = i + 186
+
+ return r
+
+
+def pad_stream(src, sizeof_total, sizeof_pad):
+ sizeof_valid = sizeof_total - sizeof_pad
+ assert sizeof_valid > 0
+ assert (len(src) % sizeof_valid) == 0
+ npkts = len(src) // sizeof_valid
+ dst = [0] * (npkts * sizeof_total)
+ for i in range(npkts):
+ src_s = i * sizeof_valid
+ dst_s = i * sizeof_total
+ dst[dst_s:dst_s + sizeof_valid] = src[src_s:src_s + sizeof_valid]
+ return dst
+
+
+def depad_stream(src, sizeof_total, sizeof_pad):
+ sizeof_valid = sizeof_total - sizeof_pad
+ assert sizeof_valid > 0
+ assert (len(src) % sizeof_total) == 0
+ npkts = len(src) // sizeof_total
+ dst = [0] * (npkts * sizeof_valid)
+ for i in range(npkts):
+ src_s = i * sizeof_total
+ dst_s = i * sizeof_valid
+ dst[dst_s:dst_s + sizeof_valid] = src[src_s:src_s + sizeof_valid]
+ return dst
+
+
diff --git a/gr-atsc/python/atsc/btl-fsd.py b/gr-atsc/python/atsc/btl-fsd.py
new file mode 100755
index 0000000000..6bcab3dce3
--- /dev/null
+++ b/gr-atsc/python/atsc/btl-fsd.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2005,2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+
+from gnuradio import gr
+from gnuradio import atsc
+from gnuradio import blocks
+import os
+
+print os.getpid()
+
+tb = gr.top_block()
+
+btl = atsc.bit_timing_loop()
+fsc = atsc.fs_checker()
+eq = atsc.equalizer()
+fsd = atsc.field_sync_demux()
+
+out_data = blocks.file_sink(atsc.sizeof_atsc_soft_data_segment,"/tmp/atsc_pipe_5")
+
+inp = blocks.file_source(gr.sizeof_float,"/tmp/atsc_pipe_3")
+
+tb.connect(inp,btl)
+tb.connect((btl,0),(fsc,0),(eq,0),(fsd,0))
+tb.connect((btl,1),(fsc,1),(eq,1),(fsd,1))
+tb.connect(fsd,out_data)
+
+tb.run()
+
+
diff --git a/gr-atsc/python/atsc/fpll.py b/gr-atsc/python/atsc/fpll.py
new file mode 100755
index 0000000000..dee81da13d
--- /dev/null
+++ b/gr-atsc/python/atsc/fpll.py
@@ -0,0 +1,88 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2005 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+
+from gnuradio import gr, atsc
+from gnuradio import blocks
+from gnuradio import filter
+import math, os
+
+def main():
+
+ print os.getpid()
+
+ tb = gr.top_block()
+
+ u = blocks.file_source(gr.sizeof_float,"/tmp/atsc_pipe_2")
+
+ input_rate = 19.2e6
+ IF_freq = 5.75e6
+
+
+ # 1/2 as wide because we're designing lp filter
+ symbol_rate = atsc.ATSC_SYMBOL_RATE/2.
+ NTAPS = 279
+ tt = filter.firdes.root_raised_cosine (1.0, input_rate, symbol_rate, .115, NTAPS)
+ # heterodyne the low pass coefficients up to the specified bandpass
+ # center frequency. Note that when we do this, the filter bandwidth
+ # is effectively twice the low pass (2.69 * 2 = 5.38) and hence
+ # matches the diagram in the ATSC spec.
+ arg = 2. * math.pi * IF_freq / input_rate
+ t=[]
+ for i in range(len(tt)):
+ t += [tt[i] * 2. * math.cos(arg * i)]
+ rrc = filter.fir_filter_fff(1, t)
+
+ fpll = atsc.fpll()
+
+ pilot_freq = IF_freq - 3e6 + 0.31e6
+ lower_edge = 6e6 - 0.31e6
+ upper_edge = IF_freq - 3e6 + pilot_freq
+ transition_width = upper_edge - lower_edge
+ lp_coeffs = filter.firdes.low_pass (1.0,
+ input_rate,
+ (lower_edge + upper_edge) * 0.5,
+ transition_width,
+ filter.firdes.WIN_HAMMING);
+
+ lp_filter = filter.fir_filter_fff (1,lp_coeffs)
+
+ alpha = 1e-5
+ iir = filter.single_pole_iir_filter_ff(alpha)
+ remove_dc = blocks.sub_ff()
+
+ out = blocks.file_sink(gr.sizeof_float,"/tmp/atsc_pipe_3")
+ # out = blocks.file_sink(gr.sizeof_float,"/mnt/sata/atsc_data_float")
+
+ tb.connect(u, fpll, lp_filter)
+ tb.connect(lp_filter, iir)
+ tb.connect(lp_filter, (remove_dc,0))
+ tb.connect(iir, (remove_dc,1))
+ tb.connect(remove_dc, out)
+
+ tb.run()
+
+
+if __name__ == '__main__':
+ main ()
+
+
+
diff --git a/gr-atsc/python/atsc/interp.py b/gr-atsc/python/atsc/interp.py
new file mode 100755
index 0000000000..ee2d234892
--- /dev/null
+++ b/gr-atsc/python/atsc/interp.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env /usr/bin/python
+#
+# Copyright 2004,2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+# This module starts the atsc processing chain taking the captured
+# off-air signal created with:
+#
+# uhd_rx_cfile.py --samp-rate=6.4e6
+# -f <center of tv signal channel freq>
+# -g <appropriate gain for best signal / noise>
+#
+# All this module does is multiply the sample rate by 3, from 6.4e6 to
+# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
+# and a transition band width of .5MHz. Center of the tv channels is
+# then at 0 with edges at -3.2MHz and 3.2MHz.
+
+from gnuradio import gr
+from gnuradio import blocks
+import sys
+
+def graph(args):
+
+ nargs = len(args)
+ if nargs == 1:
+ infile = args[0]
+ else:
+ sys.stderr.write('usage: interp.py input_file\n')
+ sys.exit(1)
+
+ tb = gr.top_block()
+
+ src0 = blocks.file_source(gr.sizeof_gr_complex, infile)
+
+ lp_coeffs = filter.firdes.low_pass(3, 19.2e6, 3.2e6, .5e6,
+ filter.firdes.WIN_HAMMING )
+ lp = filter.interp_fir_filter_ccf(1, lp_coeffs)
+
+ file = blocks.file_sink(gr.sizeof_gr_complex, "/tmp/atsc_pipe_1")
+
+ tb.connect(src0, lp, file)
+
+ tb.start()
+ raw_input('Head End: Press Enter to stop')
+ tb.stop()
+
+if __name__ == '__main__':
+ graph(sys.argv[1:])
+
+
diff --git a/gr-atsc/python/atsc/interp_short.py b/gr-atsc/python/atsc/interp_short.py
new file mode 100755
index 0000000000..d07b941c12
--- /dev/null
+++ b/gr-atsc/python/atsc/interp_short.py
@@ -0,0 +1,78 @@
+#!/usr/bin/env /usr/bin/python
+#
+# Copyright 2004 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+# This module starts the atsc processing chain taking the captured
+# off-air signal created with:
+#
+# uhd_rx_cfile.py --samp-rate=6.4e6
+# -f <center of tv signal channel freq>
+# -g <appropriate gain for best signal / noise>
+# -s output shorts
+#
+# All this module does is multiply the sample rate by 3, from 6.4e6 to
+# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
+# and a transition band width of .5MHz. Center of the tv channels is
+# then at 0 with edges at -3.2MHz and 3.2MHz.
+
+from gnuradio import gr
+from gnuradio import blocks
+from gnuradio import filter
+import sys, os
+
+def graph (args):
+
+ print os.getpid()
+
+ nargs = len (args)
+ if nargs == 1:
+ infile = args[0]
+ else:
+ sys.stderr.write('usage: interp.py input_file\n')
+ sys.exit (1)
+
+ tb = gr.top_block()
+
+ srcf = blocks.file_source(gr.sizeof_short,infile)
+ s2ss = blocks.stream_to_streams(gr.sizeof_short,2)
+ s2f1 = blocks.short_to_float()
+ s2f2 = blocks.short_to_float()
+ src0 = blocks.float_to_complex()
+
+
+ lp_coeffs = filter.firdes.low_pass(3, 19.2e6, 3.2e6, .5e6,
+ filter.firdes.WIN_HAMMING)
+ lp = filter.interp_fir_filter_ccf(3, lp_coeffs)
+
+ file = blocks.file_sink(gr.sizeof_gr_complex,"/tmp/atsc_pipe_1")
+
+ tb.connect( srcf, s2ss )
+ tb.connect( (s2ss, 0), s2f1, (src0,0) )
+ tb.connect( (s2ss, 1), s2f2, (src0,1) )
+ tb.connect( src0, lp, file)
+
+ tb.start()
+ raw_input ('Head End: Press Enter to stop')
+ tb.stop()
+
+if __name__ == '__main__':
+ graph (sys.argv[1:])
+
+
diff --git a/gr-atsc/python/atsc/qa_atsc.py b/gr-atsc/python/atsc/qa_atsc.py
new file mode 100755
index 0000000000..dc54051b77
--- /dev/null
+++ b/gr-atsc/python/atsc/qa_atsc.py
@@ -0,0 +1,225 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2006,2007,2013 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr, gr_unittest
+import atsc_swig as atsc
+from atsc_utils import *
+import sys
+import blocks_swig as blocks
+
+class memoize(object):
+ def __init__(self, thunk):
+ self.thunk = thunk
+ self.cached = False
+ self.value = None
+
+ def __call__(self):
+ if self.cached:
+ return self.value
+ self.value = self.thunk()
+ self.cached = True
+ return self.value
+
+
+"""
+Make a fake transport stream that's big enough for our purposes.
+We generate 8 full fields. This is relatively expensive. It
+takes about 2 seconds to execute.
+"""
+make_transport_stream = \
+ memoize(lambda : tuple(make_fake_transport_stream_packet(8 * atsc.ATSC_DSEGS_PER_FIELD)))
+
+
+def pad_transport_stream(src):
+ """
+ An MPEG transport stream packet is 188 bytes long. Internally we use a packet
+ that is 256 bytes long to help with buffer alignment. This function adds the
+ appropriate trailing padding to convert each packet from 188 to 256 bytes.
+ """
+ return pad_stream(src, atsc.sizeof_atsc_mpeg_packet, atsc.sizeof_atsc_mpeg_packet_pad)
+
+
+def depad_transport_stream(src):
+ """
+ An MPEG transport stream packet is 188 bytes long. Internally we use a packet
+ that is 256 bytes long to help with buffer alignment. This function removes the
+ trailing padding to convert each packet from 256 back to 188 bytes.
+ """
+ return depad_stream(src, atsc.sizeof_atsc_mpeg_packet, atsc.sizeof_atsc_mpeg_packet_pad)
+
+
+class vector_source_ts(gr.hier_block2):
+ """
+ MPEG Transport stream source for testing.
+ """
+ def __init__(self, ts):
+ """
+ Pad tranport stream packets to 256 bytes and reformat appropriately.
+
+ Args:
+ ts: MPEG transport stream. (sequence of ints in [0,255]; len(ts) % 188 == 0)
+ """
+
+ src = blocks.vector_source_b(pad_transport_stream(ts))
+ s2v = blocks.stream_to_vector(gr.sizeof_char, atsc.sizeof_atsc_mpeg_packet)
+
+ gr.hier_block2.__init__(self, "vector_source_ts",
+ gr.io_signature(0, 0, 0),
+ s2v.output_signature())
+ self.connect(src, s2v, self)
+
+
+class vector_sink_ts(gr.hier_block2):
+ """
+ MPEG Transport stream sink for testing.
+ """
+ def __init__(self):
+ """
+ """
+
+ v2s = blocks.vector_to_stream(gr.sizeof_char, atsc.sizeof_atsc_mpeg_packet)
+ self.sink = blocks.vector_sink_b()
+ gr.hier_block2.__init__(self, "vector_sink_ts",
+ v2s.input_signature(),
+ gr.io_signature(0, 0, 0))
+ self.connect(self, v2s, self.sink)
+
+ def data(self):
+ """
+ Extracts tranport stream from sink and returns it to python.
+
+ Depads tranport stream packets from 256 back to 188 bytes.
+ @rtype: tuple of ints in [0,255]; len(result) % 188 == 0
+ """
+ return tuple(depad_transport_stream(self.sink.data()))
+
+
+
+class qa_atsc(gr_unittest.TestCase):
+
+ def setUp(self):
+ self.tb = gr.top_block()
+
+ def tearDown(self):
+ self.tb = None
+
+
+ # The tests are run in alphabetical order
+
+ def test_loopback_000(self):
+ """
+ Loopback randomizer to derandomizer
+ """
+ src_data = make_transport_stream()
+ expected_result = src_data
+
+ src = vector_source_ts(src_data)
+ rand = atsc.randomizer()
+ derand = atsc.derandomizer()
+ dst = vector_sink_ts()
+
+ self.tb.connect(src, rand)
+ self.tb.connect(rand, derand)
+ self.tb.connect(derand, dst)
+ self.tb.run()
+
+ result_data = dst.data ()
+ self.assertEqual (expected_result, result_data)
+
+ def est_loopback_001(self):
+ """
+ Loopback randomizer/rs_encoder to rs_decoder/derandomizer
+ """
+ src_data = make_transport_stream()
+ expected_result = src_data
+
+ src = vector_source_ts(src_data)
+ rand = atsc.randomizer()
+ rs_enc = atsc.rs_encoder()
+ rs_dec = atsc.rs_decoder()
+ derand = atsc.derandomizer()
+ dst = vector_sink_ts()
+ self.tb.connect(src, rand, rs_enc, rs_dec, derand, dst)
+ self.tb.run ()
+ result_data = dst.data ()
+ self.assertEqual (expected_result, result_data)
+
+ def est_loopback_002(self):
+ """
+ Loopback randomizer/rs_encoder/interleaver to
+ deinterleaver/rs_decoder/derandomizer
+ """
+ src_data = make_transport_stream()
+ interleaver_delay = 52
+ expected_result = src_data[0:len(src_data)-(interleaver_delay*atsc.ATSC_MPEG_PKT_LENGTH)]
+
+ src = vector_source_ts(src_data)
+ rand = atsc.randomizer()
+ rs_enc = atsc.rs_encoder()
+ inter = atsc.interleaver()
+ deinter = atsc.deinterleaver()
+ rs_dec = atsc.rs_decoder()
+ derand = atsc.derandomizer()
+ dst = vector_sink_ts()
+ self.tb.connect(src, rand, rs_enc, inter, deinter, rs_dec, derand, dst)
+ self.tb.run ()
+ result_data = dst.data ()
+ result_data = result_data[(interleaver_delay*atsc.ATSC_MPEG_PKT_LENGTH):len(result_data)]
+ self.assertEqual (expected_result, result_data)
+
+
+ def est_loopback_003(self):
+ """
+ Loopback randomizer/rs_encoder/interleaver/trellis_encoder
+ via ds_to_softds to
+ viterbi_decoder/deinterleaver/rs_decoder/derandomizer
+ """
+ src_data = make_transport_stream()
+ interleaver_delay = 52
+ viterbi_delay = 12
+ expected_result = src_data[0:len(src_data)-((interleaver_delay+viterbi_delay)*atsc.ATSC_MPEG_PKT_LENGTH)]
+
+ src = vector_source_ts(src_data)
+ rand = atsc.randomizer()
+ rs_enc = atsc.rs_encoder()
+ inter = atsc.interleaver()
+ trellis = atsc.trellis_encoder()
+ softds = atsc.ds_to_softds()
+ viterbi = atsc.viterbi_decoder()
+ deinter = atsc.deinterleaver()
+ rs_dec = atsc.rs_decoder()
+ derand = atsc.derandomizer()
+ dst = vector_sink_ts()
+ self.tb.connect(src, rand, rs_enc, inter, trellis, softds, viterbi, deinter, rs_dec, derand, dst)
+ self.tb.run ()
+ result_data = dst.data ()[((interleaver_delay+viterbi_delay)*atsc.ATSC_MPEG_PKT_LENGTH):len(dst.data())]
+ self.assertEqual (expected_result, result_data)
+
+
+if __name__ == '__main__':
+ gr_unittest.main()
+
+
+
+
+
+
diff --git a/gr-atsc/python/atsc/viterbi-out.py b/gr-atsc/python/atsc/viterbi-out.py
new file mode 100755
index 0000000000..cc60ffda42
--- /dev/null
+++ b/gr-atsc/python/atsc/viterbi-out.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env python
+#
+# Copyright 2004,2006,2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+
+from gnuradio import gr, atsc
+from gnuradio import blocks
+import sys, os
+
+def main(args):
+
+ print os.getpid()
+
+ nargs = len (args)
+ if nargs == 1:
+ outfile = args[0]
+ else:
+ sys.stderr.write ('usage: viterbi_out.py output_file\n')
+ sys.exit (1)
+
+ tb = gr.top_block()
+
+ src = blocks.file_source(atsc.sizeof_atsc_soft_data_segment, "/tmp/atsc_pipe_5")
+ viterbi = atsc.viterbi_decoder()
+ deinter = atsc.deinterleaver()
+ rs_dec = atsc.rs_decoder()
+ derand = atsc.derandomizer()
+ depad = atsc.depad()
+ dst = blocks.file_sink(gr.sizeof_char,outfile)
+ tb.connect(src, viterbi, deinter, rs_dec, derand, depad, dst)
+ tb.run ()
+
+
+if __name__ == '__main__':
+ main(sys.argv[1:])
+
+
+
+
+
+
diff --git a/gr-atsc/python/atsc/xlate.py b/gr-atsc/python/atsc/xlate.py
new file mode 100755
index 0000000000..3d049ac524
--- /dev/null
+++ b/gr-atsc/python/atsc/xlate.py
@@ -0,0 +1,58 @@
+#!/usr/bin/env /usr/bin/python
+#
+# Copyright 2004,2007 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING. If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+#
+# This module upconverts the 19.2e6 sample rate signal from a center
+# of 0 to 5.75e6 and converts to float, to prepare the signal for
+# the old gnuradio 0.9 block (bit timing loop, field sync checker,
+# equalizer and field sync demux), effectively simulating an
+# mc4020 card, except the sample rate is 19.2e6 instead of 20e6.
+#
+# The signal is then centered on 5.75e6 with edges at 5.75 + 3.2 = 8.95MHz
+# and 5.75 - 3.2 = 2.55Mhz, low pass filtered with cutoff at 9Mhz and a
+# transition band width of 1Mhz.
+#
+# Input complex -3.2 to 3.2Mhz, output float 2.55 to 8.95Mhz.
+
+from gnuradio import gr
+from gnuradio import filter
+from gnuradio import blocks
+import os
+
+def graph ():
+ print os.getpid()
+ sampling_freq = 19200000
+
+ tb = gr.top_block ()
+
+ src0 = blocks.file_source(gr.sizeof_gr_complex,"/tmp/atsc_pipe_1")
+
+ duc_coeffs = filter.firdes.low_pass( 1, 19.2e6, 9e6, 1e6, filter.firdes.WIN_HAMMING )
+ duc = filter.freq_xlating_fir_filter_ccf( 1 duc_coeffs, 5.75e6, 19.2e6 )
+
+ c2f = blocks.complex_to_float()
+ file = blocks.file_sink(gr.sizeof_float,"/tmp/atsc_pipe_2")
+
+ tb.connect( src0, duc, c2f, file )
+
+ tb.run()
+
+if __name__ == '__main__':
+ graph ()
diff --git a/gr-atsc/python/atsc_utils.py b/gr-atsc/python/atsc_utils.py
deleted file mode 100644
index fc2465bed2..0000000000
--- a/gr-atsc/python/atsc_utils.py
+++ /dev/null
@@ -1,75 +0,0 @@
-#
-# Copyright 2006 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-import random
-import sys
-
-MPEG_SYNC_BYTE = 0x47
-
-def make_fake_transport_stream_packet(npkts):
- """
- Return a sequence of 8-bit ints that represents an MPEG Transport Stream packet.
-
- Args:
- npkts: how many 188-byte packets to return
-
- FYI, each ATSC Data Frame contains two Data Fields, each of which contains
- 312 data segments. Each transport stream packet maps to a data segment.
- """
- r = [0] * (npkts * 188)
- i = 0
- for j in range(npkts):
- r[i+0] = MPEG_SYNC_BYTE
- r[i+1] = random.randint(0, 127) # top bit (transport error bit) clear
- i = i + 2
- for n in range(186):
- r[i + n] = random.randint(0, 255)
- i = i + 186
-
- return r
-
-
-def pad_stream(src, sizeof_total, sizeof_pad):
- sizeof_valid = sizeof_total - sizeof_pad
- assert sizeof_valid > 0
- assert (len(src) % sizeof_valid) == 0
- npkts = len(src) // sizeof_valid
- dst = [0] * (npkts * sizeof_total)
- for i in range(npkts):
- src_s = i * sizeof_valid
- dst_s = i * sizeof_total
- dst[dst_s:dst_s + sizeof_valid] = src[src_s:src_s + sizeof_valid]
- return dst
-
-
-def depad_stream(src, sizeof_total, sizeof_pad):
- sizeof_valid = sizeof_total - sizeof_pad
- assert sizeof_valid > 0
- assert (len(src) % sizeof_total) == 0
- npkts = len(src) // sizeof_total
- dst = [0] * (npkts * sizeof_valid)
- for i in range(npkts):
- src_s = i * sizeof_total
- dst_s = i * sizeof_valid
- dst[dst_s:dst_s + sizeof_valid] = src[src_s:src_s + sizeof_valid]
- return dst
-
-
diff --git a/gr-atsc/python/btl-fsd.py b/gr-atsc/python/btl-fsd.py
deleted file mode 100755
index 6bcab3dce3..0000000000
--- a/gr-atsc/python/btl-fsd.py
+++ /dev/null
@@ -1,48 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2004,2005,2007 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-
-from gnuradio import gr
-from gnuradio import atsc
-from gnuradio import blocks
-import os
-
-print os.getpid()
-
-tb = gr.top_block()
-
-btl = atsc.bit_timing_loop()
-fsc = atsc.fs_checker()
-eq = atsc.equalizer()
-fsd = atsc.field_sync_demux()
-
-out_data = blocks.file_sink(atsc.sizeof_atsc_soft_data_segment,"/tmp/atsc_pipe_5")
-
-inp = blocks.file_source(gr.sizeof_float,"/tmp/atsc_pipe_3")
-
-tb.connect(inp,btl)
-tb.connect((btl,0),(fsc,0),(eq,0),(fsd,0))
-tb.connect((btl,1),(fsc,1),(eq,1),(fsd,1))
-tb.connect(fsd,out_data)
-
-tb.run()
-
-
diff --git a/gr-atsc/python/fpll.py b/gr-atsc/python/fpll.py
deleted file mode 100755
index dee81da13d..0000000000
--- a/gr-atsc/python/fpll.py
+++ /dev/null
@@ -1,88 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2004,2005 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-
-from gnuradio import gr, atsc
-from gnuradio import blocks
-from gnuradio import filter
-import math, os
-
-def main():
-
- print os.getpid()
-
- tb = gr.top_block()
-
- u = blocks.file_source(gr.sizeof_float,"/tmp/atsc_pipe_2")
-
- input_rate = 19.2e6
- IF_freq = 5.75e6
-
-
- # 1/2 as wide because we're designing lp filter
- symbol_rate = atsc.ATSC_SYMBOL_RATE/2.
- NTAPS = 279
- tt = filter.firdes.root_raised_cosine (1.0, input_rate, symbol_rate, .115, NTAPS)
- # heterodyne the low pass coefficients up to the specified bandpass
- # center frequency. Note that when we do this, the filter bandwidth
- # is effectively twice the low pass (2.69 * 2 = 5.38) and hence
- # matches the diagram in the ATSC spec.
- arg = 2. * math.pi * IF_freq / input_rate
- t=[]
- for i in range(len(tt)):
- t += [tt[i] * 2. * math.cos(arg * i)]
- rrc = filter.fir_filter_fff(1, t)
-
- fpll = atsc.fpll()
-
- pilot_freq = IF_freq - 3e6 + 0.31e6
- lower_edge = 6e6 - 0.31e6
- upper_edge = IF_freq - 3e6 + pilot_freq
- transition_width = upper_edge - lower_edge
- lp_coeffs = filter.firdes.low_pass (1.0,
- input_rate,
- (lower_edge + upper_edge) * 0.5,
- transition_width,
- filter.firdes.WIN_HAMMING);
-
- lp_filter = filter.fir_filter_fff (1,lp_coeffs)
-
- alpha = 1e-5
- iir = filter.single_pole_iir_filter_ff(alpha)
- remove_dc = blocks.sub_ff()
-
- out = blocks.file_sink(gr.sizeof_float,"/tmp/atsc_pipe_3")
- # out = blocks.file_sink(gr.sizeof_float,"/mnt/sata/atsc_data_float")
-
- tb.connect(u, fpll, lp_filter)
- tb.connect(lp_filter, iir)
- tb.connect(lp_filter, (remove_dc,0))
- tb.connect(iir, (remove_dc,1))
- tb.connect(remove_dc, out)
-
- tb.run()
-
-
-if __name__ == '__main__':
- main ()
-
-
-
diff --git a/gr-atsc/python/interp.py b/gr-atsc/python/interp.py
deleted file mode 100755
index ee2d234892..0000000000
--- a/gr-atsc/python/interp.py
+++ /dev/null
@@ -1,66 +0,0 @@
-#!/usr/bin/env /usr/bin/python
-#
-# Copyright 2004,2007 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-# This module starts the atsc processing chain taking the captured
-# off-air signal created with:
-#
-# uhd_rx_cfile.py --samp-rate=6.4e6
-# -f <center of tv signal channel freq>
-# -g <appropriate gain for best signal / noise>
-#
-# All this module does is multiply the sample rate by 3, from 6.4e6 to
-# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
-# and a transition band width of .5MHz. Center of the tv channels is
-# then at 0 with edges at -3.2MHz and 3.2MHz.
-
-from gnuradio import gr
-from gnuradio import blocks
-import sys
-
-def graph(args):
-
- nargs = len(args)
- if nargs == 1:
- infile = args[0]
- else:
- sys.stderr.write('usage: interp.py input_file\n')
- sys.exit(1)
-
- tb = gr.top_block()
-
- src0 = blocks.file_source(gr.sizeof_gr_complex, infile)
-
- lp_coeffs = filter.firdes.low_pass(3, 19.2e6, 3.2e6, .5e6,
- filter.firdes.WIN_HAMMING )
- lp = filter.interp_fir_filter_ccf(1, lp_coeffs)
-
- file = blocks.file_sink(gr.sizeof_gr_complex, "/tmp/atsc_pipe_1")
-
- tb.connect(src0, lp, file)
-
- tb.start()
- raw_input('Head End: Press Enter to stop')
- tb.stop()
-
-if __name__ == '__main__':
- graph(sys.argv[1:])
-
-
diff --git a/gr-atsc/python/interp_short.py b/gr-atsc/python/interp_short.py
deleted file mode 100755
index d07b941c12..0000000000
--- a/gr-atsc/python/interp_short.py
+++ /dev/null
@@ -1,78 +0,0 @@
-#!/usr/bin/env /usr/bin/python
-#
-# Copyright 2004 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-# This module starts the atsc processing chain taking the captured
-# off-air signal created with:
-#
-# uhd_rx_cfile.py --samp-rate=6.4e6
-# -f <center of tv signal channel freq>
-# -g <appropriate gain for best signal / noise>
-# -s output shorts
-#
-# All this module does is multiply the sample rate by 3, from 6.4e6 to
-# 19.2e6 complex samples / sec, then lowpass filter with a cutoff of 3.2MHz
-# and a transition band width of .5MHz. Center of the tv channels is
-# then at 0 with edges at -3.2MHz and 3.2MHz.
-
-from gnuradio import gr
-from gnuradio import blocks
-from gnuradio import filter
-import sys, os
-
-def graph (args):
-
- print os.getpid()
-
- nargs = len (args)
- if nargs == 1:
- infile = args[0]
- else:
- sys.stderr.write('usage: interp.py input_file\n')
- sys.exit (1)
-
- tb = gr.top_block()
-
- srcf = blocks.file_source(gr.sizeof_short,infile)
- s2ss = blocks.stream_to_streams(gr.sizeof_short,2)
- s2f1 = blocks.short_to_float()
- s2f2 = blocks.short_to_float()
- src0 = blocks.float_to_complex()
-
-
- lp_coeffs = filter.firdes.low_pass(3, 19.2e6, 3.2e6, .5e6,
- filter.firdes.WIN_HAMMING)
- lp = filter.interp_fir_filter_ccf(3, lp_coeffs)
-
- file = blocks.file_sink(gr.sizeof_gr_complex,"/tmp/atsc_pipe_1")
-
- tb.connect( srcf, s2ss )
- tb.connect( (s2ss, 0), s2f1, (src0,0) )
- tb.connect( (s2ss, 1), s2f2, (src0,1) )
- tb.connect( src0, lp, file)
-
- tb.start()
- raw_input ('Head End: Press Enter to stop')
- tb.stop()
-
-if __name__ == '__main__':
- graph (sys.argv[1:])
-
-
diff --git a/gr-atsc/python/qa_atsc.py b/gr-atsc/python/qa_atsc.py
deleted file mode 100755
index dc54051b77..0000000000
--- a/gr-atsc/python/qa_atsc.py
+++ /dev/null
@@ -1,225 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2004,2006,2007,2013 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 51 Franklin Street,
-# Boston, MA 02110-1301, USA.
-#
-
-from gnuradio import gr, gr_unittest
-import atsc_swig as atsc
-from atsc_utils import *
-import sys
-import blocks_swig as blocks
-
-class memoize(object):
- def __init__(self, thunk):
- self.thunk = thunk
- self.cached = False
- self.value = None
-
- def __call__(self):
- if self.cached:
- return self.value
- self.value = self.thunk()
- self.cached = True
- return self.value
-
-
-"""
-Make a fake transport stream that's big enough for our purposes.
-We generate 8 full fields. This is relatively expensive. It
-takes about 2 seconds to execute.
-"""
-make_transport_stream = \
- memoize(lambda : tuple(make_fake_transport_stream_packet(8 * atsc.ATSC_DSEGS_PER_FIELD)))
-
-
-def pad_transport_stream(src):
- """
- An MPEG transport stream packet is 188 bytes long. Internally we use a packet
- that is 256 bytes long to help with buffer alignment. This function adds the
- appropriate trailing padding to convert each packet from 188 to 256 bytes.
- """
- return pad_stream(src, atsc.sizeof_atsc_mpeg_packet, atsc.sizeof_atsc_mpeg_packet_pad)
-
-
-def depad_transport_stream(src):
- """
- An MPEG transport stream packet is 188 bytes long. Internally we use a packet
- that is 256 bytes long to help with buffer alignment. This function removes the
- trailing padding to convert each packet from 256 back to 188 bytes.
- """
- return depad_stream(src, atsc.sizeof_atsc_mpeg_packet, atsc.sizeof_atsc_mpeg_packet_pad)
-
-
-class vector_source_ts(gr.hier_block2):
- """
- MPEG Transport stream source for testing.
- """
- def __init__(self, ts):
- """
- Pad tranport stream packets to 256 bytes and reformat appropriately.
-
- Args:
- ts: MPEG transport stream. (sequence of ints in [0,255]; len(ts) % 188 == 0)
- """
-
- src = blocks.vector_source_b(pad_transport_stream(ts))
- s2v = blocks.stream_to_vector(gr.sizeof_char, atsc.sizeof_atsc_mpeg_packet)
-
- gr.hier_block2.__init__(self, "vector_source_ts",
- gr.io_signature(0, 0, 0),
- s2v.output_signature())
- self.connect(src, s2v, self)
-
-
-class vector_sink_ts(gr.hier_block2):
- """
- MPEG Transport stream sink for testing.
- """
- def __init__(self):
- """
- """
-
- v2s = blocks.vector_to_stream(gr.sizeof_char, atsc.sizeof_atsc_mpeg_packet)
- self.sink = blocks.vector_sink_b()
- gr.hier_block2.__init__(self, "vector_sink_ts",
- v2s.input_signature(),
- gr.io_signature(0, 0, 0))
- self.connect(self, v2s, self.sink)
-
- def data(self):
- """
- Extracts tranport stream from sink and returns it to python.
-
- Depads tranport stream packets from 256 back to 188 bytes.
- @rtype: tuple of ints in [0,255]; len(result) % 188 == 0
- """
- return tuple(depad_transport_stream(self.sink.data()))
-
-
-
-class qa_atsc(gr_unittest.TestCase):
-
- def setUp(self):
- self.tb = gr.top_block()
-
- def tearDown(self):
- self.tb = None
-
-
- # The tests are run in alphabetical order
-
- def test_loopback_000(self):
- """
- Loopback randomizer to derandomizer
- """
- src_data = make_transport_stream()
- expected_result = src_data
-
- src = vector_source_ts(src_data)
- rand = atsc.randomizer()
- derand = atsc.derandomizer()
- dst = vector_sink_ts()
-
- self.tb.connect(src, rand)
- self.tb.connect(rand, derand)
- self.tb.connect(derand, dst)
- self.tb.run()
-
- result_data = dst.data ()
- self.assertEqual (expected_result, result_data)
-
- def est_loopback_001(self):
- """
- Loopback randomizer/rs_encoder to rs_decoder/derandomizer
- """
- src_data = make_transport_stream()
- expected_result = src_data
-
- src = vector_source_ts(src_data)
- rand = atsc.randomizer()
- rs_enc = atsc.rs_encoder()
- rs_dec = atsc.rs_decoder()
- derand = atsc.derandomizer()
- dst = vector_sink_ts()
- self.tb.connect(src, rand, rs_enc, rs_dec, derand, dst)
- self.tb.run ()
- result_data = dst.data ()
- self.assertEqual (expected_result, result_data)
-
- def est_loopback_002(self):
- """
- Loopback randomizer/rs_encoder/interleaver to
- deinterleaver/rs_decoder/derandomizer
- """
- src_data = make_transport_stream()
- interleaver_delay = 52
- expected_result = src_data[0:len(src_data)-(interleaver_delay*atsc.ATSC_MPEG_PKT_LENGTH)]
-
- src = vector_source_ts(src_data)
- rand = atsc.randomizer()
- rs_enc = atsc.rs_encoder()
- inter = atsc.interleaver()
- deinter = atsc.deinterleaver()
- rs_dec = atsc.rs_decoder()
- derand = atsc.derandomizer()
- dst = vector_sink_ts()
- self.tb.connect(src, rand, rs_enc, inter, deinter, rs_dec, derand, dst)
- self.tb.run ()
- result_data = dst.data ()
- result_data = result_data[(interleaver_delay*atsc.ATSC_MPEG_PKT_LENGTH):len(result_data)]
- self.assertEqual (expected_result, result_data)
-
-
- def est_loopback_003(self):
- """
- Loopback randomizer/rs_encoder/interleaver/trellis_encoder
- via ds_to_softds to
- viterbi_decoder/deinterleaver/rs_decoder/derandomizer
- """
- src_data = make_transport_stream()
- interleaver_delay = 52
- viterbi_delay = 12
- expected_result = src_data[0:len(src_data)-((interleaver_delay+viterbi_delay)*atsc.ATSC_MPEG_PKT_LENGTH)]
-
- src = vector_source_ts(src_data)
- rand = atsc.randomizer()
- rs_enc = atsc.rs_encoder()
- inter = atsc.interleaver()
- trellis = atsc.trellis_encoder()
- softds = atsc.ds_to_softds()
- viterbi = atsc.viterbi_decoder()
- deinter = atsc.deinterleaver()
- rs_dec = atsc.rs_decoder()
- derand = atsc.derandomizer()
- dst = vector_sink_ts()
- self.tb.connect(src, rand, rs_enc, inter, trellis, softds, viterbi, deinter, rs_dec, derand, dst)
- self.tb.run ()
- result_data = dst.data ()[((interleaver_delay+viterbi_delay)*atsc.ATSC_MPEG_PKT_LENGTH):len(dst.data())]
- self.assertEqual (expected_result, result_data)
-
-
-if __name__ == '__main__':
- gr_unittest.main()
-
-
-
-
-
-
diff --git a/gr-atsc/python/viterbi-out.py b/gr-atsc/python/viterbi-out.py
deleted file mode 100755
index cc60ffda42..0000000000
--- a/gr-atsc/python/viterbi-out.py
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2004,2006,2007 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-
-from gnuradio import gr, atsc
-from gnuradio import blocks
-import sys, os
-
-def main(args):
-
- print os.getpid()
-
- nargs = len (args)
- if nargs == 1:
- outfile = args[0]
- else:
- sys.stderr.write ('usage: viterbi_out.py output_file\n')
- sys.exit (1)
-
- tb = gr.top_block()
-
- src = blocks.file_source(atsc.sizeof_atsc_soft_data_segment, "/tmp/atsc_pipe_5")
- viterbi = atsc.viterbi_decoder()
- deinter = atsc.deinterleaver()
- rs_dec = atsc.rs_decoder()
- derand = atsc.derandomizer()
- depad = atsc.depad()
- dst = blocks.file_sink(gr.sizeof_char,outfile)
- tb.connect(src, viterbi, deinter, rs_dec, derand, depad, dst)
- tb.run ()
-
-
-if __name__ == '__main__':
- main(sys.argv[1:])
-
-
-
-
-
-
diff --git a/gr-atsc/python/xlate.py b/gr-atsc/python/xlate.py
deleted file mode 100755
index 3d049ac524..0000000000
--- a/gr-atsc/python/xlate.py
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/usr/bin/env /usr/bin/python
-#
-# Copyright 2004,2007 Free Software Foundation, Inc.
-#
-# This file is part of GNU Radio
-#
-# GNU Radio is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3, or (at your option)
-# any later version.
-#
-# GNU Radio is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with GNU Radio; see the file COPYING. If not, write to
-# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-# Boston, MA 02111-1307, USA.
-#
-# This module upconverts the 19.2e6 sample rate signal from a center
-# of 0 to 5.75e6 and converts to float, to prepare the signal for
-# the old gnuradio 0.9 block (bit timing loop, field sync checker,
-# equalizer and field sync demux), effectively simulating an
-# mc4020 card, except the sample rate is 19.2e6 instead of 20e6.
-#
-# The signal is then centered on 5.75e6 with edges at 5.75 + 3.2 = 8.95MHz
-# and 5.75 - 3.2 = 2.55Mhz, low pass filtered with cutoff at 9Mhz and a
-# transition band width of 1Mhz.
-#
-# Input complex -3.2 to 3.2Mhz, output float 2.55 to 8.95Mhz.
-
-from gnuradio import gr
-from gnuradio import filter
-from gnuradio import blocks
-import os
-
-def graph ():
- print os.getpid()
- sampling_freq = 19200000
-
- tb = gr.top_block ()
-
- src0 = blocks.file_source(gr.sizeof_gr_complex,"/tmp/atsc_pipe_1")
-
- duc_coeffs = filter.firdes.low_pass( 1, 19.2e6, 9e6, 1e6, filter.firdes.WIN_HAMMING )
- duc = filter.freq_xlating_fir_filter_ccf( 1 duc_coeffs, 5.75e6, 19.2e6 )
-
- c2f = blocks.complex_to_float()
- file = blocks.file_sink(gr.sizeof_float,"/tmp/atsc_pipe_2")
-
- tb.connect( src0, duc, c2f, file )
-
- tb.run()
-
-if __name__ == '__main__':
- graph ()
--
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