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simple_recorder.py
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#------------------------------------------------------------------------------
# Recording example. Data is recorded to binary files. See simple player for
# how to extract recorded data.
# Press space to start recording.
# Press stop to stop recording.
#------------------------------------------------------------------------------
from pynput import keyboard
import os
import threading
import hl2ss
import hl2ss_lnm
import hl2ss_mp
import hl2ss_utilities
# Settings --------------------------------------------------------------------
# HoloLens address
host = '192.168.1.7'
# Output directory
path = './data'
# Unpack to viewable formats (e.g., encoded video to mp4)
unpack = True
# Ports to record
ports = [
hl2ss.StreamPort.RM_VLC_LEFTFRONT,
#hl2ss.StreamPort.RM_VLC_LEFTLEFT,
hl2ss.StreamPort.RM_VLC_RIGHTFRONT,
#hl2ss.StreamPort.RM_VLC_RIGHTRIGHT,
#hl2ss.StreamPort.RM_DEPTH_AHAT,
#hl2ss.StreamPort.RM_DEPTH_LONGTHROW,
#hl2ss.StreamPort.RM_IMU_ACCELEROMETER,
#hl2ss.StreamPort.RM_IMU_GYROSCOPE,
#hl2ss.StreamPort.RM_IMU_MAGNETOMETER,
hl2ss.StreamPort.PERSONAL_VIDEO,
#hl2ss.StreamPort.MICROPHONE,
#hl2ss.StreamPort.SPATIAL_INPUT,
#hl2ss.StreamPort.EXTENDED_EYE_TRACKER,
hl2ss.StreamPort.EXTENDED_AUDIO,
]
# PV parameters
pv_width = 760
pv_height = 428
pv_framerate = 30
# EET parameters
eet_fps = 30 # 30, 60, 90
# Maximum number of frames in buffer
buffer_elements = 300
#------------------------------------------------------------------------------
if __name__ == '__main__':
if ((hl2ss.StreamPort.RM_DEPTH_LONGTHROW in ports) and (hl2ss.StreamPort.RM_DEPTH_AHAT in ports)):
print('Error: Simultaneous RM Depth Long Throw and RM Depth AHAT streaming is not supported. See known issues at https://github.com/jdibenes/hl2ss.')
quit()
# Keyboard events ---------------------------------------------------------
start_event = threading.Event()
stop_event = threading.Event()
def on_press(key):
global start_event
global stop_event
if (key == keyboard.Key.space):
start_event.set()
elif (key == keyboard.Key.esc):
stop_event.set()
return not stop_event.is_set()
listener = keyboard.Listener(on_press=on_press)
listener.start()
# Start PV Subsystem if PV is selected ------------------------------------
if (hl2ss.StreamPort.PERSONAL_VIDEO in ports):
hl2ss_lnm.start_subsystem_pv(host, hl2ss.StreamPort.PERSONAL_VIDEO)
# Start receivers ---------------------------------------------------------
producer = hl2ss_mp.producer()
producer.configure(hl2ss.StreamPort.RM_VLC_LEFTFRONT, hl2ss_lnm.rx_rm_vlc(host, hl2ss.StreamPort.RM_VLC_LEFTFRONT, decoded=False))
producer.configure(hl2ss.StreamPort.RM_VLC_LEFTLEFT, hl2ss_lnm.rx_rm_vlc(host, hl2ss.StreamPort.RM_VLC_LEFTLEFT, decoded=False))
producer.configure(hl2ss.StreamPort.RM_VLC_RIGHTFRONT, hl2ss_lnm.rx_rm_vlc(host, hl2ss.StreamPort.RM_VLC_RIGHTFRONT, decoded=False))
producer.configure(hl2ss.StreamPort.RM_VLC_RIGHTRIGHT, hl2ss_lnm.rx_rm_vlc(host, hl2ss.StreamPort.RM_VLC_RIGHTRIGHT, decoded=False))
producer.configure(hl2ss.StreamPort.RM_DEPTH_AHAT, hl2ss_lnm.rx_rm_depth_ahat(host, hl2ss.StreamPort.RM_DEPTH_AHAT, decoded=False))
producer.configure(hl2ss.StreamPort.RM_DEPTH_LONGTHROW, hl2ss_lnm.rx_rm_depth_longthrow(host, hl2ss.StreamPort.RM_DEPTH_LONGTHROW, decoded=False))
producer.configure(hl2ss.StreamPort.RM_IMU_ACCELEROMETER, hl2ss_lnm.rx_rm_imu(host, hl2ss.StreamPort.RM_IMU_ACCELEROMETER))
producer.configure(hl2ss.StreamPort.RM_IMU_GYROSCOPE, hl2ss_lnm.rx_rm_imu(host, hl2ss.StreamPort.RM_IMU_GYROSCOPE))
producer.configure(hl2ss.StreamPort.RM_IMU_MAGNETOMETER, hl2ss_lnm.rx_rm_imu(host, hl2ss.StreamPort.RM_IMU_MAGNETOMETER))
producer.configure(hl2ss.StreamPort.PERSONAL_VIDEO, hl2ss_lnm.rx_pv(host, hl2ss.StreamPort.PERSONAL_VIDEO, width=pv_width, height=pv_height, framerate=pv_framerate, decoded_format=None))
producer.configure(hl2ss.StreamPort.MICROPHONE, hl2ss_lnm.rx_microphone(host, hl2ss.StreamPort.MICROPHONE, decoded=False))
producer.configure(hl2ss.StreamPort.SPATIAL_INPUT, hl2ss_lnm.rx_si(host, hl2ss.StreamPort.SPATIAL_INPUT))
producer.configure(hl2ss.StreamPort.EXTENDED_EYE_TRACKER, hl2ss_lnm.rx_eet(host, hl2ss.StreamPort.EXTENDED_EYE_TRACKER, fps=eet_fps))
producer.configure(hl2ss.StreamPort.EXTENDED_AUDIO, hl2ss_lnm.rx_extended_audio(host, hl2ss.StreamPort.EXTENDED_AUDIO, decoded=False))
for port in ports:
producer.initialize(port, buffer_elements)
producer.start(port)
# Wait for start signal ---------------------------------------------------
print('Press space to start recording...')
start_event.wait()
print('Preparing...')
# Start writers -----------------------------------------------------------
filenames = {port : os.path.join(path, f'{hl2ss.get_port_name(port)}.bin') for port in ports}
writers = {port : hl2ss_utilities.wr_process_producer(filenames[port], producer, port, 'hl2ss simple recorder'.encode()) for port in ports}
for port in ports:
writers[port].start()
# Wait for stop signal ----------------------------------------------------
print('Recording started.')
print('Press esc to stop recording...')
stop_event.wait()
print('Stopping...')
# Stop writers and receivers ----------------------------------------------
for port in ports:
writers[port].stop()
for port in ports:
writers[port].join()
for port in ports:
producer.stop(port)
# Stop PV Subsystem if PV is selected -------------------------------------
if (hl2ss.StreamPort.PERSONAL_VIDEO in ports):
hl2ss_lnm.stop_subsystem_pv(host, hl2ss.StreamPort.PERSONAL_VIDEO)
# Stop keyboard events ----------------------------------------------------
listener.join()
# Quit if binaries are not to be unpacked ---------------------------------
if (not unpack):
quit()
print('Unpacking binaries (may take several minutes)...')
# Unpack encoded video streams to a single MP4 file -----------------------
ports_to_mp4 = [
hl2ss.StreamPort.PERSONAL_VIDEO,
hl2ss.StreamPort.MICROPHONE,
hl2ss.StreamPort.EXTENDED_AUDIO,
hl2ss.StreamPort.RM_VLC_LEFTFRONT,
hl2ss.StreamPort.RM_VLC_LEFTLEFT,
hl2ss.StreamPort.RM_VLC_RIGHTFRONT,
hl2ss.StreamPort.RM_VLC_RIGHTRIGHT,
hl2ss.StreamPort.RM_DEPTH_AHAT,
]
mp4_input_filenames = [filenames[port] for port in ports_to_mp4 if (port in ports)]
mp4_output_filename = os.path.join(path, 'video.mp4')
if (len(mp4_input_filenames) > 0):
hl2ss_utilities.unpack_to_mp4(mp4_input_filenames, mp4_output_filename)
# Unpack RM Depth Long Throw to a tar file containing Depth and AB PNGs ---
if (hl2ss.StreamPort.RM_DEPTH_LONGTHROW in ports):
hl2ss_utilities.unpack_to_png(filenames[hl2ss.StreamPort.RM_DEPTH_LONGTHROW], os.path.join(path, 'long_throw.tar'))
# Unpack stream metadata and numeric payloads to csv ----------------------
for port in ports:
input_filename = filenames[port]
output_filename = input_filename[:input_filename.rfind('.bin')] + '.csv'
hl2ss_utilities.unpack_to_csv(input_filename, output_filename)