#!/usr/bin/env python3 # -*- coding: utf-8 -*- import pyaudio import audioop import time import argparse import sys import ctypes from ctypes import * import pathlib sys.path.insert(0,'..') import codec2 import numpy as np #--------------------------------------------GET PARAMETER INPUTS parser = argparse.ArgumentParser(description='Simons TEST TNC') parser.add_argument('--bursts', dest="N_BURSTS", default=0, type=int) parser.add_argument('--framesperburst', dest="N_FRAMES_PER_BURST", default=1, type=int) parser.add_argument('--audiodev', dest="AUDIO_INPUT_DEVICE", default=-1, type=int, help="audio device number to use") parser.add_argument('--debug', dest="DEBUGGING_MODE", action="store_true") parser.add_argument('--list', dest="LIST", action="store_true", help="list audio devices by number and exit") parser.add_argument('--timeout', dest="TIMEOUT", default=10, type=int, help="Timeout (seconds) before test ends") args = parser.parse_args() if args.LIST: p = pyaudio.PyAudio() for dev in range(0,p.get_device_count()): print("audiodev: ", dev, p.get_device_info_by_index(dev)["name"]) quit() N_BURSTS = args.N_BURSTS N_FRAMES_PER_BURST = args.N_FRAMES_PER_BURST AUDIO_INPUT_DEVICE = args.AUDIO_INPUT_DEVICE DEBUGGING_MODE = args.DEBUGGING_MODE TIMEOUT = args.TIMEOUT # AUDIO PARAMETERS AUDIO_FRAMES_PER_BUFFER = 2048 MODEM_SAMPLE_RATE = codec2.api.FREEDV_FS_8000 AUDIO_SAMPLE_RATE_RX = 8000 assert (AUDIO_SAMPLE_RATE_RX % MODEM_SAMPLE_RATE) == 0 # SET COUNTERS rx_total_frames_datac0 = 0 rx_frames_datac0 = 0 rx_bursts_datac0 = 0 rx_total_frames_datac1 = 0 rx_frames_datac1 = 0 rx_bursts_datac1 = 0 rx_total_frames_datac3 = 0 rx_frames_datac3 = 0 rx_bursts_datac3 = 0 # open codec2 instance datac0_freedv = cast(codec2.api.freedv_open(codec2.api.FREEDV_MODE_DATAC0), c_void_p) datac0_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac0_freedv)/8) datac0_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac0_freedv) datac0_bytes_out = create_string_buffer(datac0_bytes_per_frame * 2) codec2.api.freedv_set_frames_per_burst(datac0_freedv,N_FRAMES_PER_BURST) datac0_buffer = codec2.audio_buffer(datac0_n_max_modem_samples) datac1_freedv = cast(codec2.api.freedv_open(codec2.api.FREEDV_MODE_DATAC1), c_void_p) datac1_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac1_freedv)/8) datac1_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac1_freedv) datac1_bytes_out = create_string_buffer(datac1_bytes_per_frame * 2) codec2.api.freedv_set_frames_per_burst(datac1_freedv,N_FRAMES_PER_BURST) datac1_buffer = codec2.audio_buffer(datac1_n_max_modem_samples) datac3_freedv = cast(codec2.api.freedv_open(codec2.api.FREEDV_MODE_DATAC3), c_void_p) datac3_bytes_per_frame = int(codec2.api.freedv_get_bits_per_modem_frame(datac3_freedv)/8) datac3_n_max_modem_samples = codec2.api.freedv_get_n_max_modem_samples(datac3_freedv) datac3_bytes_out = create_string_buffer(datac3_bytes_per_frame * 2) codec2.api.freedv_set_frames_per_burst(datac3_freedv,N_FRAMES_PER_BURST) datac3_buffer = codec2.audio_buffer(datac3_n_max_modem_samples) # check if we want to use an audio device then do an pyaudio init if AUDIO_INPUT_DEVICE != -1: p = pyaudio.PyAudio() # auto search for loopback devices if AUDIO_INPUT_DEVICE == -2: loopback_list = [] for dev in range(0,p.get_device_count()): if 'Loopback: PCM' in p.get_device_info_by_index(dev)["name"]: loopback_list.append(dev) if len(loopback_list) >= 2: AUDIO_INPUT_DEVICE = loopback_list[0] #0 = RX 1 = TX print(f"loopback_list rx: {loopback_list}", file=sys.stderr) else: quit() print(f"AUDIO INPUT DEVICE: {AUDIO_INPUT_DEVICE} DEVICE: {p.get_device_info_by_index(AUDIO_INPUT_DEVICE)['name']} AUDIO SAMPLE RATE: {AUDIO_SAMPLE_RATE_RX}", file=sys.stderr) stream_rx = p.open(format=pyaudio.paInt16, channels=1, rate=AUDIO_SAMPLE_RATE_RX, frames_per_buffer=AUDIO_FRAMES_PER_BUFFER, input=True, input_device_index=AUDIO_INPUT_DEVICE ) timeout = time.time() + TIMEOUT print(time.time(),TIMEOUT, timeout) receive = True # initial nin values datac0_nin = codec2.api.freedv_nin(datac0_freedv) datac1_nin = codec2.api.freedv_nin(datac1_freedv) datac3_nin = codec2.api.freedv_nin(datac3_freedv) while receive and time.time() < timeout: if AUDIO_INPUT_DEVICE != -1: data_in = stream_rx.read(AUDIO_FRAMES_PER_BUFFER, exception_on_overflow = False) else: data_in = sys.stdin.buffer.read(AUDIO_FRAMES_PER_BUFFER*2) x = np.frombuffer(data_in, dtype=np.int16) if len(x) == 0: receive = False datac0_buffer.push(x) datac1_buffer.push(x) datac3_buffer.push(x) while datac0_buffer.nbuffer >= datac0_nin: # demodulate audio nbytes = codec2.api.freedv_rawdatarx(datac0_freedv, datac0_bytes_out, datac0_buffer.buffer.ctypes) datac0_buffer.pop(datac0_nin) datac0_nin = codec2.api.freedv_nin(datac0_freedv) if nbytes == datac0_bytes_per_frame: rx_total_frames_datac0 = rx_total_frames_datac0 + 1 rx_frames_datac0 = rx_frames_datac0 + 1 if rx_frames_datac0 == N_FRAMES_PER_BURST: rx_frames_datac0 = 0 rx_bursts_datac0 = rx_bursts_datac0 + 1 while datac1_buffer.nbuffer >= datac1_nin: # demodulate audio nbytes = codec2.api.freedv_rawdatarx(datac1_freedv, datac1_bytes_out, datac1_buffer.buffer.ctypes) datac1_buffer.pop(datac1_nin) datac1_nin = codec2.api.freedv_nin(datac1_freedv) if nbytes == datac1_bytes_per_frame: rx_total_frames_datac1 = rx_total_frames_datac1 + 1 rx_frames_datac1 = rx_frames_datac1 + 1 if rx_frames_datac1 == N_FRAMES_PER_BURST: rx_frames_datac1 = 0 rx_bursts_datac1 = rx_bursts_datac1 + 1 while datac3_buffer.nbuffer >= datac3_nin: # demodulate audio nbytes = codec2.api.freedv_rawdatarx(datac3_freedv, datac3_bytes_out, datac3_buffer.buffer.ctypes) datac3_buffer.pop(datac3_nin) datac3_nin = codec2.api.freedv_nin(datac3_freedv) if nbytes == datac3_bytes_per_frame: rx_total_frames_datac3 = rx_total_frames_datac3 + 1 rx_frames_datac3 = rx_frames_datac3 + 1 if rx_frames_datac3 == N_FRAMES_PER_BURST: rx_frames_datac3 = 0 rx_bursts_datac3 = rx_bursts_datac3 + 1 if DEBUGGING_MODE: datac0_rxstatus = codec2.api.freedv_get_rx_status(datac0_freedv) datac0_rxstatus = codec2.api.rx_sync_flags_to_text[datac0_rxstatus] datac1_rxstatus = codec2.api.freedv_get_rx_status(datac1_freedv) datac1_rxstatus = codec2.api.rx_sync_flags_to_text[datac1_rxstatus] datac3_rxstatus = codec2.api.freedv_get_rx_status(datac3_freedv) datac3_rxstatus = codec2.api.rx_sync_flags_to_text[datac3_rxstatus] print("NIN0: %5d RX_STATUS0: %4s NIN1: %5d RX_STATUS1: %4s NIN3: %5d RX_STATUS3: %4s" % \ (datac0_nin, datac0_rxstatus, datac1_nin, datac1_rxstatus, datac3_nin, datac3_rxstatus)) if rx_bursts_datac0 == N_BURSTS and rx_bursts_datac1 == N_BURSTS and rx_bursts_datac3 == N_BURSTS: receive = False # INFO IF WE REACHED TIMEOUT if time.time() > timeout: print(f"TIMEOUT REACHED", file=sys.stderr) 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)