mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
Merge branch 'dr-test' of github.com:DJ2LS/FreeDATA into dr-test
This commit is contained in:
drowe67
David Rowe
commit
c273a84c85
4 changed files with 175 additions and 110 deletions
6
.gitignore
vendored
Normal file
6
.gitignore
vendored
Normal file
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@ -0,0 +1,6 @@
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# possible installation of codec2 within tnc
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tnc/codec2
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# temporary test artifacts
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**/build
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**/Testing
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@ -17,15 +17,35 @@ else()
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find_package(codec2 REQUIRED)
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endif()
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# test variables
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set(FRAMESPERBURST 3)
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set(BURSTS 1)
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set(TESTFRAMES 3)
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add_test(NAME 000_audio_tests
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COMMAND sh -c "cd ${CMAKE_CURRENT_SOURCE_DIR}/test/000_audio_tests;
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python3 sinustest.py")
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add_test(NAME 001_highsnr_stdio
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add_test(NAME 001_highsnr_stdio_P<>C
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COMMAND sh -c "export LD_LIBRARY_PATH=${CODEC2_BUILD_DIR}/src;
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PATH=$PATH:${CODEC2_BUILD_DIR}/src;
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cd ${CMAKE_CURRENT_SOURCE_DIR}/test/001_highsnr_stdio_audio;
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python3 test_tx.py --mode 14 --delay 500 --frames 3 --bursts 1 |
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freedv_data_raw_rx datac0 - - --framesperburst 3 -v | hexdump -C")
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set_tests_properties(001_highsnr_stdio PROPERTIES PASS_REGULAR_EXPRESSION "HELLO WORLD")
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set_tests_properties(001_highsnr_stdio PROPERTIES PASS_REGULAR_EXPRESSION "Frms.: 3")
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python3 test_tx.py --mode 14 --delay 500 --framesperburst ${FRAMESPERBURST} --bursts ${BURSTS} |
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freedv_data_raw_rx datac0 - - --framesperburst ${FRAMESPERBURST} | hexdump -C")
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set_tests_properties(001_highsnr_stdio_P<>C PROPERTIES PASS_REGULAR_EXPRESSION "HELLO WORLD")
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add_test(NAME 001_highsnr_stdio_C<>P
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COMMAND sh -c "export LD_LIBRARY_PATH=${CODEC2_BUILD_DIR}/src;
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PATH=$PATH:${CODEC2_BUILD_DIR}/src;
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cd ${CMAKE_CURRENT_SOURCE_DIR}/test/001_highsnr_stdio_audio;
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freedv_data_raw_tx --testframes ${TESTFRAMES} --bursts ${BURSTS} --framesperburst ${FRAMESPERBURST} datac0 /dev/zero - |
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python3 test_rx.py --mode 14 --framesperburst ${FRAMESPERBURST} --bursts ${BURSTS}")
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set_tests_properties(001_highsnr_stdio_C<>P PROPERTIES PASS_REGULAR_EXPRESSION "RECEIVED BURSTS: ${BURSTS} RECEIVED FRAMES: ${FRAMESPERBURST}")
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add_test(NAME 001_highsnr_stdio_P<>P
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COMMAND sh -c "export LD_LIBRARY_PATH=${CODEC2_BUILD_DIR}/src;
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PATH=$PATH:${CODEC2_BUILD_DIR}/src;
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cd ${CMAKE_CURRENT_SOURCE_DIR}/test/001_highsnr_stdio_audio;
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python3 test_tx.py --mode 14 --delay 500 --framesperburst ${FRAMESPERBURST} --bursts ${BURSTS} |
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python3 test_rx.py --mode 14 --framesperburst ${FRAMESPERBURST} --bursts ${BURSTS}")
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set_tests_properties(001_highsnr_stdio_P<>P PROPERTIES PASS_REGULAR_EXPRESSION "RECEIVED BURSTS: ${BURSTS} RECEIVED FRAMES: ${FRAMESPERBURST}")
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@ -21,9 +21,8 @@ import argparse
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#--------------------------------------------GET PARAMETER INPUTS
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parser = argparse.ArgumentParser(description='Simons TEST TNC')
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parser.add_argument('--bursts', dest="N_BURSTS", default=0, type=int)
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parser.add_argument('--frames', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--mode', dest="FREEDV_MODE", default=0, type=int)
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parser.add_argument('--input', dest="DATA_INPUT", type=str)
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parser.add_argument('--framesperburst', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--mode', dest="FREEDV_MODE", default=14, type=int)
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parser.add_argument('--audioinput', dest="AUDIO_INPUT", default=0, type=int)
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parser.add_argument('--debug', dest="DEBUGGING_MODE", action="store_true")
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@ -31,39 +30,19 @@ args = parser.parse_args()
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N_BURSTS = args.N_BURSTS
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N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST
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DATA_INPUT = args.DATA_INPUT
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AUDIO_INPUT_DEVICE = args.AUDIO_INPUT
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FREEDV_MODE = args.FREEDV_MODE
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MODE = args.FREEDV_MODE
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DEBUGGING_MODE = args.DEBUGGING_MODE
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# 1024 good for mode 6
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# AUDIO PARAMETERS
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AUDIO_FRAMES_PER_BUFFER = 2048
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MODEM_SAMPLE_RATE = 8000
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AUDIO_SAMPLE_RATE_TX = 48000
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#-------------------------------------------- LOAD FREEDV
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libname = "libcodec2.so"
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c_lib = ctypes.CDLL(libname)
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#--------------------------------------------CREATE PYAUDIO INSTANCE
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#--------------------------------------------GET SUPPORTED SAMPLE RATES FROM SOUND DEVICE
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#--------------------------------------------OPEN AUDIO CHANNEL RX
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if DATA_INPUT == "audio":
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# check if we want to use an audio device then do an pyaudio init
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if AUDIO_INPUT_DEVICE != 0:
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p = pyaudio.PyAudio()
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AUDIO_SAMPLE_RATE_RX = int(p.get_device_info_by_index(AUDIO_INPUT_DEVICE)['defaultSampleRate'])
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stream_rx = p.open(format=pyaudio.paInt16,
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channels=1,
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rate=AUDIO_SAMPLE_RATE_RX,
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@ -72,18 +51,48 @@ if DATA_INPUT == "audio":
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input_device_index=AUDIO_INPUT_DEVICE,
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)
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# LOAD FREEDV
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libname = "libcodec2.so"
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c_lib = ctypes.CDLL(libname)
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# GENERAL PARAMETERS
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c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
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# ctypes function init
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c_lib.freedv_open.argype = [c_int]
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c_lib.freedv_open.restype = c_void_p
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c_lib.freedv_get_bits_per_modem_frame.argtype = [c_void_p]
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c_lib.freedv_get_bits_per_modem_frame.restype = c_int
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c_lib.freedv_nin.argtype = [c_void_p]
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c_lib.freedv_nin.restype = c_int
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c_lib.freedv_rawdatarx.argtype = [c_void_p, c_char_p, c_char_p]
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c_lib.freedv_rawdatarx.restype = c_int
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c_lib.freedv_get_n_max_modem_samples.argtype = [c_void_p]
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c_lib.freedv_get_n_max_modem_samples.restype = c_int
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c_lib.freedv_set_frames_per_burst.argtype = [c_void_p, c_int]
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c_lib.freedv_set_frames_per_burst.restype = c_void_p
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c_lib.freedv_get_rx_status.argtype = [c_void_p]
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c_lib.freedv_get_rx_status.restype = c_int
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# ----------------------------------------------------------------
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# DATA CHANNEL INITIALISATION
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freedv = c_lib.freedv_open(FREEDV_MODE)
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# open codec2 instance
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freedv = cast(c_lib.freedv_open(MODE), c_void_p)
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# get number of bytes per frame for mode
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bytes_per_frame = int(c_lib.freedv_get_bits_per_modem_frame(freedv)/8)
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payload_bytes_per_frame = bytes_per_frame -2
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n_max_modem_samples = c_lib.freedv_get_n_max_modem_samples(freedv)
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bytes_out = (ctypes.c_ubyte * bytes_per_frame) #bytes_per_frame
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bytes_out = bytes_out() #get pointer from bytes_out
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bytes_out = create_string_buffer(bytes_per_frame * 2)
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c_lib.freedv_set_frames_per_burst(freedv,N_FRAMES_PER_BURST)
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@ -92,32 +101,32 @@ total_n_bytes = 0
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rx_total_frames = 0
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rx_frames = 0
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rx_bursts = 0
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timeout = time.time() + 10
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receive = True
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while receive == True:
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time.sleep(0.01)
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while receive and time.time() < timeout:
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data_in = b''
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if DATA_INPUT == "audio":
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if AUDIO_INPUT_DEVICE != 0:
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nin = c_lib.freedv_nin(freedv)
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nin_converted = int(nin*(AUDIO_SAMPLE_RATE_RX/MODEM_SAMPLE_RATE))
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if DEBUGGING_MODE == True:
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print("-----------------------------")
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print("NIN: " + str(nin) + " [ " + str(nin_converted) + " ]")
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print(f"NIN: {nin} [{nin_converted}]", file=sys.stderr)
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data_in = stream_rx.read(nin_converted, exception_on_overflow = False)
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data_in = audioop.ratecv(data_in,2,1,AUDIO_SAMPLE_RATE_RX, MODEM_SAMPLE_RATE, None)
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data_in = data_in[0].rstrip(b'\x00')
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else:
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nin = c_lib.freedv_nin(freedv)*2
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nin = c_lib.freedv_nin(freedv) * 2
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data_in = sys.stdin.buffer.read(nin)
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c_lib.freedv_rawdatarx.argtype = [ctypes.POINTER(ctypes.c_ubyte), bytes_out, data_in] # check if really neccessary
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nbytes = c_lib.freedv_rawdatarx(freedv, bytes_out, data_in) # demodulate audio
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total_n_bytes = total_n_bytes + nbytes
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if DEBUGGING_MODE == True:
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print("SYNC: " + str(c_lib.freedv_get_rx_status(freedv)))
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print(f"SYNC: {c_lib.freedv_get_rx_status(freedv)}", file=sys.stderr)
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if nbytes == bytes_per_frame:
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rx_total_frames = rx_total_frames + 1
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@ -126,13 +135,15 @@ while receive == True:
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if rx_frames == N_FRAMES_PER_BURST:
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rx_frames = 0
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rx_bursts = rx_bursts + 1
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#c_lib.freedv_set_sync(freedv,0) #this should be automatically done by c_lib.freedv_set_frames_per_burst(freedv,N_FRAMES_PER_BURST)
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if rx_bursts == N_BURSTS:
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receive = False
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print("------------------------------")
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print("BURSTS: " + str(rx_bursts))
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print("TOTAL RECEIVED BYTES: " + str(total_n_bytes))
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print("RECEIVED FRAMES: " + str(rx_total_frames))
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print(f"RECEIVED BURSTS: {rx_bursts} RECEIVED FRAMES: {rx_total_frames}", file=sys.stderr)
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# and at last check if we had an openend pyaudio instance and close it
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if AUDIO_INPUT_DEVICE != 0:
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stream_tx.close()
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p.terminate()
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@ -12,50 +12,31 @@ import audioop
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import argparse
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import sys
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#--------------------------------------------GET PARAMETER INPUTS
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# GET PARAMETER INPUTS
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parser = argparse.ArgumentParser(description='Simons TEST TNC')
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parser.add_argument('--bursts', dest="N_BURSTS", default=0, type=int)
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parser.add_argument('--frames', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--framesperburst', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--delay', dest="DELAY_BETWEEN_BURSTS", default=0, type=int)
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parser.add_argument('--mode', dest="FREEDV_MODE", default=0, type=int)
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parser.add_argument('--output', dest="DATA_OUTPUT", type=str)
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parser.add_argument('--mode', dest="FREEDV_MODE", default=14, type=int)
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parser.add_argument('--audiooutput', dest="AUDIO_OUTPUT", default=0, type=int)
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args = parser.parse_args()
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N_BURSTS = args.N_BURSTS
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N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST
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DELAY_BETWEEN_BURSTS = args.DELAY_BETWEEN_BURSTS/1000
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DATA_OUTPUT = args.DATA_OUTPUT
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AUDIO_OUTPUT_DEVICE = args.AUDIO_OUTPUT
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MODE = args.FREEDV_MODE
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# 1024 good for mode 6
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# AUDIO PARAMETERS
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AUDIO_FRAMES_PER_BUFFER = 2048
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MODEM_SAMPLE_RATE = 8000
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AUDIO_SAMPLE_RATE_TX = 48000
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mode = args.FREEDV_MODE
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data_out = b'HELLO WORLD!'
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#-------------------------------------------- LOAD FREEDV
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libname = "libcodec2.so"
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c_lib = ctypes.CDLL(libname)
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#--------------------------------------------CREATE PYAUDIO INSTANCE
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#--------------------------------------------GET SUPPORTED SAMPLE RATES FROM SOUND DEVICE
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#--------------------------------------------OPEN AUDIO CHANNEL TX
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if DATA_OUTPUT == "audio":
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# check if we want to use an audio device then do an pyaudio init
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if AUDIO_OUTPUT_DEVICE != 0:
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# pyaudio init
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p = pyaudio.PyAudio()
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stream_tx = p.open(format=pyaudio.paInt16,
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channels=1,
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@ -63,70 +44,117 @@ if DATA_OUTPUT == "audio":
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frames_per_buffer=AUDIO_FRAMES_PER_BUFFER, #n_nom_modem_samples
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output=True,
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output_device_index=AUDIO_OUTPUT_DEVICE,
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)
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AUDIO_SAMPLE_RATE_TX = int(p.get_device_info_by_index(AUDIO_OUTPUT_DEVICE)['defaultSampleRate'])
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)
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# data binary string
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data_out = b'HELLO WORLD!'
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# LOAD FREEDV
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libname = "libcodec2.so"
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c_lib = ctypes.CDLL(libname)
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# ctypes function init
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c_lib.freedv_open.argype = [c_int]
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c_lib.freedv_open.restype = c_void_p
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c_lib.freedv_get_bits_per_modem_frame.argtype = [c_void_p]
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c_lib.freedv_get_bits_per_modem_frame.restype = c_int
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c_lib.freedv_get_n_tx_preamble_modem_samples.argtype = [c_void_p]
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c_lib.freedv_get_n_tx_preamble_modem_samples.restype = c_int
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c_lib.freedv_get_n_tx_postamble_modem_samples.argtype = [c_void_p]
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c_lib.freedv_get_n_tx_postamble_modem_samples.restype = c_int
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c_lib.freedv_gen_crc16.argtype = [c_void_p, c_int]
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c_lib.freedv_gen_crc16.restype = c_void_p
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c_lib.freedv_nin.argtype = [c_void_p]
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c_lib.freedv_nin.restype = c_int
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c_lib.freedv_rawdatatx.argtype = [c_void_p, c_char_p, c_char_p]
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c_lib.freedv_rawdatatx.restype = c_int
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# ----------------------------------------------------------------
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c_lib.freedv_open.restype = ctypes.POINTER(ctypes.c_ubyte)
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freedv = c_lib.freedv_open(mode)
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# open codec2 instance
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freedv = cast(c_lib.freedv_open(MODE), c_void_p)
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# get number of bytes per frame for mode
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bytes_per_frame = int(c_lib.freedv_get_bits_per_modem_frame(freedv)/8)
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payload_bytes_per_frame = bytes_per_frame -2
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n_mod_out = int(c_lib.freedv_get_n_tx_modem_samples(freedv))
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mod_out = ctypes.c_short * n_mod_out
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mod_out = mod_out()
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# init buffer for data
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n_tx_modem_samples = c_lib.freedv_get_n_tx_modem_samples(freedv)
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mod_out = create_string_buffer(n_tx_modem_samples * 2)
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n_preamble = int(c_lib.freedv_get_n_tx_preamble_modem_samples(freedv))
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mod_out_preamble = ctypes.c_short * n_preamble
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mod_out_preamble = mod_out_preamble()
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# init buffer for preample
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n_tx_preamble_modem_samples = c_lib.freedv_get_n_tx_preamble_modem_samples(freedv)
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mod_out_preamble = create_string_buffer(n_tx_preamble_modem_samples * 2)
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n_postamble = int(c_lib.freedv_get_n_tx_postamble_modem_samples(freedv))
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mod_out_postamble = ctypes.c_short * n_postamble
|
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mod_out_postamble = mod_out_postamble()
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# init buffer for postamble
|
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n_tx_postamble_modem_samples = c_lib.freedv_get_n_tx_postamble_modem_samples(freedv)
|
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mod_out_postamble = create_string_buffer(n_tx_postamble_modem_samples * 2)
|
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|
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# create buffer for data
|
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buffer = bytearray(payload_bytes_per_frame) # use this if CRC16 checksum is required ( DATA1-3)
|
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buffer[:len(data_out)] = data_out # set buffersize to length of data which will be send
|
||||
|
||||
# create crc for data frame - we are using the crc function shipped with codec2 to avoid
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# crc algorithm incompatibilities
|
||||
crc = ctypes.c_ushort(c_lib.freedv_gen_crc16(bytes(buffer), payload_bytes_per_frame)) # generate CRC16
|
||||
crc = crc.value.to_bytes(2, byteorder='big') # convert crc to 2 byte hex string
|
||||
buffer += crc # append crc16 to buffer
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||||
|
||||
|
||||
print("BURSTS: " + str(N_BURSTS) + " FRAMES_PER_BURST: " + str(N_FRAMES_PER_BURST) , file=sys.stderr)
|
||||
print(f"TOTAL BURSTS: {N_BURSTS} TOTAL FRAMES_PER_BURST: {N_FRAMES_PER_BURST}", file=sys.stderr)
|
||||
|
||||
for i in range(0,N_BURSTS):
|
||||
|
||||
txbuffer = bytearray()
|
||||
for i in range(1,N_BURSTS+1):
|
||||
|
||||
# write preamble to txbuffer
|
||||
c_lib.freedv_rawdatapreambletx(freedv, mod_out_preamble)
|
||||
txbuffer += bytes(mod_out_preamble)
|
||||
txbuffer = bytes(mod_out_preamble)
|
||||
|
||||
for n in range(0,N_FRAMES_PER_BURST):
|
||||
# create modulaton for N = FRAMESPERBURST and append it to txbuffer
|
||||
for n in range(1,N_FRAMES_PER_BURST+1):
|
||||
|
||||
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
|
||||
c_lib.freedv_rawdatatx(freedv,mod_out,data) # modulate DATA and save it into mod_out pointer
|
||||
|
||||
txbuffer += bytes(mod_out)
|
||||
print("frame",n, file=sys.stderr)
|
||||
|
||||
|
||||
print(f"BURST: {i}/{N_BURSTS} FRAME: {n}/{N_FRAMES_PER_BURST}", file=sys.stderr)
|
||||
|
||||
# append postamble to txbuffer
|
||||
c_lib.freedv_rawdatapostambletx(freedv, mod_out_postamble)
|
||||
txbuffer += bytes(mod_out_postamble)
|
||||
|
||||
# append a delay between bursts as audio silence
|
||||
samples_delay = int(MODEM_SAMPLE_RATE*DELAY_BETWEEN_BURSTS)
|
||||
mod_out_silence = ctypes.c_short * samples_delay
|
||||
print("samples_delay", samples_delay, "DELAY_BETWEEN_BURSTS", DELAY_BETWEEN_BURSTS, file=sys.stderr)
|
||||
mod_out_silence = mod_out_silence()
|
||||
mod_out_silence = create_string_buffer(samples_delay)
|
||||
txbuffer += bytes(mod_out_silence)
|
||||
print(f"samples_delay: {samples_delay} DELAY_BETWEEN_BURSTS: {DELAY_BETWEEN_BURSTS}", file=sys.stderr)
|
||||
|
||||
if DATA_OUTPUT == "audio":
|
||||
# check if we want to use an audio device or stdout
|
||||
if AUDIO_OUTPUT_DEVICE != 0:
|
||||
|
||||
# sample rate conversion from 8000Hz to 48000Hz
|
||||
audio = audioop.ratecv(txbuffer,2,1,MODEM_SAMPLE_RATE, AUDIO_SAMPLE_RATE_TX, None)
|
||||
stream_tx.write(audio[0])
|
||||
txbuffer = bytearray()
|
||||
|
||||
else:
|
||||
sys.stdout.buffer.write(txbuffer) # print data to terminal for piping the output to other programs
|
||||
# print data to terminal for piping the output to other programs
|
||||
sys.stdout.buffer.write(txbuffer)
|
||||
sys.stdout.flush()
|
||||
|
||||
if DATA_OUTPUT == "audio":
|
||||
|
||||
# and at last check if we had an openend pyaudio instance and close it
|
||||
if AUDIO_OUTPUT_DEVICE != 0:
|
||||
stream_tx.close()
|
||||
p.terminate()
|
||||
|
|
|
|||
Loading…
Reference in a new issue