drmpeg / gr-dvbs2rx Goto Github PK

I tried master branch with default procedure as described in readme but failed, seems can not find Boost package when compile the QA part code....
gnu radio version info: 3.10.3.0 (Python 3.9.13) on macos monterey 12.4, all dependant packages with current version, which I guess all the latest...

Hello! I see that the receiver package has BCHdecoder, LDPCdecoder, BBdescrambler and BBdeheader. Where are the demodulator and deinterleaving blocks?

Hello, i encounter this problem when running the program. Can anyone help me with this?

avx2.hh:952:36: error: ‘_mm256_min_epi64’ was not declared in this scope

Hello,
This is a wonderful module.
When I use Gnuradio v3.9.0 and python3.6.9, cmake will:
-- Checking for module SWIG
-- Found SWIG version 3.0.12.
-- Found SWIG: /usr/bin/swig3.0
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (found version "3.6.9")
-- Found PythonLibs: /usr/lib/x86_64-linux-gnu/libpython3.6m.so (found suitable version "3.6.9", minimum required is "2")
-- Performing Test HAVE_WNO_UNUSED_BUT_SET_VARIABLE
-- Performing Test HAVE_WNO_UNUSED_BUT_SET_VARIABLE - Success
Traceback (most recent call last):
File "", line 2, in
TypeError: Unicode-objects must be encoded before hashing
CMake Error at /usr/local/lib/cmake/gnuradio/UseSWIG.cmake:200 (add_executable):
add_executable called with incorrect number of arguments
Call Stack (most recent call first):
/usr/local/lib/cmake/gnuradio/UseSWIG.cmake:257 (SWIG_ADD_SOURCE_TO_MODULE)
/usr/local/lib/cmake/gnuradio/GrSwig.cmake:189 (SWIG_ADD_MODULE)
swig/CMakeLists.txt:51 (GR_SWIG_MAKE)

You have called ADD_LIBRARY for library _dvbs2rx_swig without any source files. This typically indicates a problem with your CMakeLists.txt file
CMake Error at /usr/local/lib/cmake/gnuradio/GrSwig.cmake:227 (GR_LIBTOOL):
Unknown CMake command "GR_LIBTOOL".
Call Stack (most recent call first):
swig/CMakeLists.txt:56 (GR_SWIG_INSTALL)

Thanks.

With the default compile flags, a linker error occurs on fedora 36 (linux, x86-64) because that code is compiled without -fPIC, which is necessary for shared libraries:
ldpc_decoder/libldpc_decoder_avx2.a(ldpc_decoder_avx2.cc.o): relocation R_X86_64_32 against hidden symbol '_ZN9ldpc_avx211LdpcDecoderE' can not be used when making a shared object

I succeeded in making it link and run by adding, in
lib/CMakeLists.txt:
+add_compile_options ( -fPIC )

A second such change has to be made in
in cpu_features/CMakeLists.txt but that is a git submodule.
So my workaround is probably not the best solution.

after compile under cmake .. -DCMAKE_BUILD_TYPE=Debug
while running python3 dvbs2_rx_gdb.py
get following error
ImportError: /usr/local/lib/x86_64-linux-gnu/libgnuradio-dvbs2rx.so.1.0.0git: undefined symbol: _ZN29QuadratureAmplitudeModulationILi256ESt7complexIfEaE3AMPE

gr::log :WARN: dvb_bbheader_bb0 - Transport Stream sync error!
frame = 0, BCH decoder too many bit errors.
Baseband header crc failed.

do you have example use case working with USRP sink and USRP Source for dvbs2_rx.grc

AttributeError: 'module' object has no attribute 'ldpc_decoder_cb'
I found this error when run this, please help.

It is a very interesting OOT. Is there any plans to port this module to support GNU Radio 3.8?

Hi there,
Just a small question, I am trying to "hook up" the dvbs2_rx.grc to dvbs2_tx.grc. Basically the dvbs2_tx.grc has 2 extra bloks after the DVB-S2X Modulator: the Physical Layer Framer and the FFT filter.

On the dvbs2_rx.grc side, the LDPC Decoder block is connected directly to the DVB-S2X Modulator. Of course adding the Physical Layer Framer and the FFT filter the hooking up the LDPC Decoder block causes a lot of errors:

"LDPC decoder failed at converging to a code word
.....
BCH decoder too many bit error"

What I am trying to do is to transmit a .ts file via DVB-S2 using 2 SDRs. Would it be possible to tell what do I have to implement on the rx side so that I'll have a workable PoC? Or if you have the needed rx bloks available, would it be much of a trouble to have them committed?

Many thanks

I cannot see Result file(decoded.ts)

This is my error logs
""""""""""""
Baseband header crc failed.
frame = 202, BCH decoder too many bit errors.
frame = 203, BCH decoder too many bit errors.
Baseband header crc failed.
frame = 204, BCH decoder too many bit errors.
frame = 205, BCH decoder too many bit errors.
Baseband header crc failed.
frame = 206, BCH decoder too many bit errors.
frame = 207, BCH decoder too many bit errors.
""""""""""""

Can you share performance data of LDPC decode on your platform?

Hello, i am trying to use the package dvbs2rx, but when i execute the file on GNU Radio, it shows the following error: "'Module' object has no attribute 'ldpc_decoder_cb'". May you help me to solve this issue please?