mirror of
https://github.com/DJ2LS/FreeDATA
synced 2024-05-14 08:04:33 +00:00
162 lines
6.4 KiB
Python
Executable file
162 lines
6.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import pyaudio
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import audioop
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import time
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import argparse
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import sys
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import ctypes
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from ctypes import *
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import pathlib
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sys.path.insert(0,'..')
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import codec2
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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('--framesperburst', dest="N_FRAMES_PER_BURST", default=0, type=int)
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parser.add_argument('--audiodev', dest="AUDIO_INPUT_DEVICE", default=-1, type=int, help="audio device number to use")
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parser.add_argument('--debug', dest="DEBUGGING_MODE", action="store_true")
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parser.add_argument('--list', dest="LIST", action="store_true", help="list audio devices by number and exit")
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parser.add_argument('--timeout', dest="TIMEOUT", default=10, type=int, help="Timeout (seconds) before test ends")
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args = parser.parse_args()
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if args.LIST:
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p = pyaudio.PyAudio()
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for dev in range(0,p.get_device_count()):
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print("audiodev: ", dev, p.get_device_info_by_index(dev)["name"])
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quit()
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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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AUDIO_INPUT_DEVICE = args.AUDIO_INPUT_DEVICE
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TIMEOUT = args.TIMEOUT
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# AUDIO PARAMETERS
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AUDIO_FRAMES_PER_BUFFER = 2048
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MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000
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AUDIO_SAMPLE_RATE_RX = 48000
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assert (AUDIO_SAMPLE_RATE_RX % MODEM_SAMPLE_RATE) == 0
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# SET COUNTERS
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rx_total_frames_datac0 = 0
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rx_frames_datac0 = 0
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rx_bursts_datac0 = 0
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rx_total_frames_datac1 = 0
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rx_frames_datac1 = 0
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rx_bursts_datac1 = 0
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rx_total_frames_datac3 = 0
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rx_frames_datac3 = 0
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rx_bursts_datac3 = 0
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# open codec2 instance
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datac0_freedv = cast(codec2.api.freedv_open(14), c_void_p)
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datac0_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac0_freedv)/8)
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datac0_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac0_freedv)
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datac0_bytes_out = create_string_buffer(datac0_bytes_per_frame * 2)
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codec2.api.freedv_set_frames_per_burst(datac0_freedv,N_FRAMES_PER_BURST)
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datac0_buffer = bytes()
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datac1_freedv = cast(codec2.api.freedv_open(10), c_void_p)
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datac1_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac1_freedv)/8)
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datac1_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac1_freedv)
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datac1_bytes_out = create_string_buffer(datac1_bytes_per_frame * 2)
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codec2.api.freedv_set_frames_per_burst(datac1_freedv,N_FRAMES_PER_BURST)
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datac1_buffer = bytes()
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datac3_freedv = cast(codec2.api.freedv_open(12), c_void_p)
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datac3_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac3_freedv)/8)
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datac3_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac3_freedv)
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datac3_bytes_out = create_string_buffer(datac3_bytes_per_frame * 2)
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codec2.api.freedv_set_frames_per_burst(datac3_freedv,N_FRAMES_PER_BURST)
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datac3_buffer = bytes()
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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 != -1:
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p = pyaudio.PyAudio()
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# --------------------------------------------OPEN AUDIO CHANNEL RX
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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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frames_per_buffer=AUDIO_FRAMES_PER_BUFFER,
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input=True,
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input_device_index=AUDIO_INPUT_DEVICE
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)
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timeout = time.time() + TIMEOUT
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receive = True
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BUF_SIZE = 160
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while receive and time.time() < timeout:
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if AUDIO_INPUT_DEVICE != -1:
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buf_size_converted = int(BUF_SIZE*(AUDIO_SAMPLE_RATE_RX/MODEM_SAMPLE_RATE))
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data_in = stream_rx.read(buf_size_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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data_in = sys.stdin.buffer.read(BUF_SIZE)
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datac0_buffer += data_in
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datac1_buffer += data_in
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datac3_buffer += data_in
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datac0_nin = codec2.api.freedv_nin(datac0_freedv) * 2
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if len(datac0_buffer) >= (datac0_nin):
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datac0_audio = datac0_buffer[:datac0_nin]
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datac0_buffer = datac0_buffer[datac0_nin:]
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nbytes = codec2.api.freedv_rawdatarx(datac0_freedv, datac0_bytes_out, datac0_audio) # demodulate audio
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if nbytes == datac0_bytes_per_frame:
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rx_total_frames_datac0 = rx_total_frames_datac0 + 1
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rx_frames_datac0 = rx_frames_datac0 + 1
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if rx_frames_datac0 == N_FRAMES_PER_BURST:
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rx_frames_datac0 = 0
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rx_bursts_datac0 = rx_bursts_datac0 + 1
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datac1_nin = codec2.api.freedv_nin(datac1_freedv) * 2
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if len(datac1_buffer) >= (datac1_nin):
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datac1_audio = datac1_buffer[:datac1_nin]
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datac1_buffer = datac1_buffer[datac1_nin:]
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nbytes = codec2.api.freedv_rawdatarx(datac1_freedv, datac1_bytes_out, datac1_audio) # demodulate audio
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if nbytes == datac1_bytes_per_frame:
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rx_total_frames_datac1 = rx_total_frames_datac1 + 1
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rx_frames_datac1 = rx_frames_datac1 + 1
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if rx_frames_datac1 == N_FRAMES_PER_BURST:
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rx_frames_datac1 = 0
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rx_bursts_datac1 = rx_bursts_datac1 + 1
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datac3_nin = codec2.api.freedv_nin(datac3_freedv) * 2
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if len(datac3_buffer) >= (datac3_nin):
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datac3_audio = datac3_buffer[:datac3_nin]
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datac3_buffer = datac3_buffer[datac3_nin:]
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nbytes = codec2.api.freedv_rawdatarx(datac3_freedv, datac3_bytes_out, datac3_audio) # demodulate audio
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if nbytes == datac3_bytes_per_frame:
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rx_total_frames_datac3 = rx_total_frames_datac3 + 1
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rx_frames_datac3 = rx_frames_datac3 + 1
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if rx_frames_datac3 == N_FRAMES_PER_BURST:
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rx_frames_datac3 = 0
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rx_bursts_datac3 = rx_bursts_datac3 + 1
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if rx_bursts_datac0 == N_BURSTS and rx_bursts_datac1 == N_BURSTS and rx_bursts_datac3 == N_BURSTS:
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receive = False
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# INFO IF WE REACHED TIMEOUT
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if time.time() > timeout:
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print(f"TIMEOUT REACHED", file=sys.stderr)
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print(f"DATAC0: {rx_bursts_datac0}/{rx_total_frames_datac0} DATAC1: {rx_bursts_datac1}/{rx_total_frames_datac1} DATAC3: {rx_bursts_datac3}/{rx_total_frames_datac3}", file=sys.stderr)
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