FreeDATA/test/util_multimode_tx.py

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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Send-side station emulator for test frame tests over a high quality audio channel
using a physical sound card or STDIO.
Legacy test for sending / receiving connection test frames through the codec2 and
back through on the other station. Data injection initiates directly through
the codec2 API. Tests all three codec2 data frames simultaneously.
Invoked from CMake, test_highsnr_stdio_P_P_multi.py, and many test_virtual[1-3]*.sh.
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@author: DJ2LS
"""
import argparse
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
2022-05-21 23:04:17 +00:00
import ctypes
import sys
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
2022-05-21 23:04:17 +00:00
import time
import numpy as np
import pyaudio
sys.path.insert(0, "..")
from modem import codec2
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
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def test_mm_tx():
MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000
AUDIO_SAMPLE_RATE_TX = 48000
assert (AUDIO_SAMPLE_RATE_TX % MODEM_SAMPLE_RATE) == 0
args = parse_arguments()
if args.LIST:
p_audio = pyaudio.PyAudio()
for dev in range(p_audio.get_device_count()):
print("audiodev: ", dev, p_audio.get_device_info_by_index(dev)["name"])
sys.exit()
N_BURSTS = args.N_BURSTS
N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST
DELAY_BETWEEN_BURSTS = args.DELAY_BETWEEN_BURSTS / 1000
AUDIO_OUTPUT_DEVICE = args.AUDIO_OUTPUT_DEVICE
resampler = codec2.resampler()
# Data binary string
data_out = b"HELLO WORLD!"
modes = [
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codec2.FREEDV_MODE.datac13.value,
codec2.FREEDV_MODE.datac1.value,
codec2.FREEDV_MODE.datac3.value,
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
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]
if AUDIO_OUTPUT_DEVICE != -1:
p_audio = pyaudio.PyAudio()
# Auto search for loopback devices
if AUDIO_OUTPUT_DEVICE == -2:
loopback_list = [
dev
for dev in range(p_audio.get_device_count())
if "Loopback: PCM" in p_audio.get_device_info_by_index(dev)["name"]
]
if len(loopback_list) >= 2:
AUDIO_OUTPUT_DEVICE = loopback_list[1] # 0 = RX 1 = TX
print(f"loopback_list tx: {loopback_list}", file=sys.stderr)
else:
sys.exit()
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# AUDIO PARAMETERS
AUDIO_FRAMES_PER_BUFFER = 2400
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
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# pyaudio init
stream_tx = p_audio.open(
format=pyaudio.paInt16,
channels=1,
rate=AUDIO_SAMPLE_RATE_TX,
frames_per_buffer=AUDIO_FRAMES_PER_BUFFER, # n_nom_modem_samples
output=True,
output_device_index=AUDIO_OUTPUT_DEVICE,
)
for mode in modes:
freedv = ctypes.cast(codec2.api.freedv_open(mode), ctypes.c_void_p)
n_tx_modem_samples = codec2.api.freedv_get_n_tx_modem_samples(freedv)
mod_out = ctypes.create_string_buffer(2 * n_tx_modem_samples)
n_tx_preamble_modem_samples = codec2.api.freedv_get_n_tx_preamble_modem_samples(
freedv
)
mod_out_preamble = ctypes.create_string_buffer(2 * n_tx_preamble_modem_samples)
n_tx_postamble_modem_samples = (
codec2.api.freedv_get_n_tx_postamble_modem_samples(freedv)
)
mod_out_postamble = ctypes.create_string_buffer(
2 * n_tx_postamble_modem_samples
)
bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(freedv) / 8)
payload_per_frame = bytes_per_frame - 2
buffer = bytearray(payload_per_frame)
# Set buffer size to length of data which will be sent
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
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buffer[: len(data_out)] = data_out
# Generate CRC16
crc = ctypes.c_ushort(
codec2.api.freedv_gen_crc16(bytes(buffer), payload_per_frame)
)
# Convert CRC to 2 byte hex string
crc = crc.value.to_bytes(2, byteorder="big")
buffer += crc # Append crc16 to buffer
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
for brst in range(1, N_BURSTS + 1):
# Write preamble to txbuffer
codec2.api.freedv_rawdatapreambletx(freedv, mod_out_preamble)
txbuffer = bytes(mod_out_preamble)
# Create modulaton for N = FRAMESPERBURST and append it to txbuffer
for frm in range(1, N_FRAMES_PER_BURST + 1):
data = (ctypes.c_ubyte * bytes_per_frame).from_buffer_copy(buffer)
# Modulate DATA and save it into mod_out pointer
codec2.api.freedv_rawdatatx(freedv, mod_out, data)
txbuffer += bytes(mod_out)
print(
f"TX BURST: {brst}/{N_BURSTS} FRAME: {frm}/{N_FRAMES_PER_BURST}",
file=sys.stderr,
)
# Append postamble to txbuffer
codec2.api.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.create_string_buffer(samples_delay * 2)
txbuffer += bytes(mod_out_silence)
# Resample up to 48k (resampler works on np.int16)
audio_buffer = np.frombuffer(txbuffer, dtype=np.int16)
txbuffer_48k = resampler.resample8_to_48(audio_buffer)
# Check if we want to use an audio device or stdout
if AUDIO_OUTPUT_DEVICE != -1:
stream_tx.write(txbuffer_48k.tobytes())
else:
# This test needs a lot of time, so we are having a look at times...
starttime = time.time()
# Print data to terminal for piping the output to other programs
sys.stdout.buffer.write(txbuffer_48k)
sys.stdout.flush()
# and at least print the needed time to see which time we needed
timeneeded = time.time() - starttime
# print(f"time: {timeneeded} buffer: {len(txbuffer)}", file=sys.stderr)
# and at last check if we had an opened pyaudio instance and close it
if AUDIO_OUTPUT_DEVICE != -1:
time.sleep(stream_tx.get_output_latency())
stream_tx.stop_stream()
stream_tx.close()
p_audio.terminate()
def parse_arguments():
# GET PARAMETER INPUTS
parser = argparse.ArgumentParser(description="FreeDATA TEST")
parser.add_argument("--bursts", dest="N_BURSTS", default=1, type=int)
parser.add_argument(
"--framesperburst", dest="N_FRAMES_PER_BURST", default=1, type=int
)
parser.add_argument("--delay", dest="DELAY_BETWEEN_BURSTS", default=500, type=int)
parser.add_argument(
"--audiodev",
dest="AUDIO_OUTPUT_DEVICE",
default=-1,
type=int,
help="audio output device number to use",
)
parser.add_argument(
"--list",
dest="LIST",
action="store_true",
help="list audio devices by number and exit",
)
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args, _ = parser.parse_known_args()
return args
Enhance tests (#185) * Initial attempt to create unit tests for DATA class (tnc). * Completed initial set of tests. * Adding pytest to install packages. * Corrects issue #173 fix I didn't look carefully enough at `helpers.check_callsign` to see that it returns a list. The first element of the list is `True`/`False`. * Making check_callsign evaluation more consistent. * Update .gitignore this is more a test commit to see if GitHub Client for MacOS is working, * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * single tnc test file moved to a single file for running tnc tests * fixed typo * Added parameters to tests. Make other minor tweaks and documentation. * Clean up two existing tests. Adapted both tests to pytest and maintained compatibility with existing ctest method. Tweaked CMakeLists.txt . * Adding pure python highsnr_stdio_P_P_multi test. Intended to replace highsnr_stdio_P_P_multi which uses POSIX shell. * Adding pure python highsnr_stdio_P_P_datac0 test. Intended to replace highsnr_stdio_P_P_datac0 which uses POSIX shell. * Parameterize recent tests. Renamed datac0 to datacx after including all data codecs in test. * Parameterize mode as well. Add ability to run tests from main directory as well as within test/. * Add list of tests and brief descriptions. * Add more native python tests conversions. * Update README with new tests. * Tweak README again. * Rename test to be findable by pytest. * Rename test for ctest. * Update correct file this time. * Minor test tweaks. * Add modem test proof-of-concept. * Adjustment to ARQ short test. * Various refactorings. Type hints, trailing backslash, range usage, etc. * Ignore unknown arguments in argparse. * Minor cleanups. * Update test/README.md. * Update test_pa to quiet pylint. * Give up trying to suppress structlog output. * Correct module comments. * Remove excess trailing spaces. * Remove excess newlines. * Various refactorings. Type hints, trailing backslash, range usage, etc. * mkfifo test prototype First partially working prototype for testing the full tnc with mkfifo named pipes. * Update test_tnc and tweak IRS/ISS. * Correct test_modem to detect failures. * Trying to be less dependent on env variables. * Add IRS/ISS tests to ctests * Pin codec2 revision to v1.0.3. * Correcting git mistake. * Pin codec2 revision to master. This should be a specific release, that implements freedv_set_tuning_range. Co-authored-by: DJ2LS <75909252+DJ2LS@users.noreply.github.com>
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if __name__ == "__main__":
test_mm_tx()