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HoloLensDataExtraction.py
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HoloLensDataExtraction.py
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import sys
import os
import glob
import tarfile
import argparse
import sqlite3
import shutil
import json
import subprocess
import urllib.request
import numpy as np
from PIL import Image
# Downloading data from HoloLens.
# Arguments: Username for HoloLens Portal,
# Password for HoloLens Portal,
# Folder, where to download,
# HoloLensIP(127.0.0.1:10080, if using USB),
# bool: Delete after download (1 = delete)
# Example:
# python HoloLensDataExtraction.py "username" "password" "D:/Documents/HoloLensData/" "127.0.0.1:10080" "1"
recording_folders = []
def connect(address, username, password):
print("Connecting to HoloLens Device Portal...")
url = "http://{}".format(address)
password_manager = urllib.request.HTTPPasswordMgrWithDefaultRealm()
password_manager.add_password(None, url, username, password)
handler = urllib.request.HTTPBasicAuthHandler(password_manager)
opener = urllib.request.build_opener(handler)
opener.open(url)
urllib.request.install_opener(opener)
print("=> Connected to HoloLens at address:", url)
response = urllib.request.urlopen(
"{}/api/app/packagemanager/packages".format(url))
packages = json.loads(response.read().decode())
package_full_name = None
for package in packages["InstalledPackages"]:
if package["Name"] == "CV: Recorder":
package_full_name = package["PackageFullName"]
break
assert package_full_name is not None, \
"App not found"
print("=> Found application with name:",
package_full_name)
print("Searching for recordings...")
response = urllib.request.urlopen(
"{}/api/filesystem/apps/files?knownfolderid="
"LocalAppData&packagefullname={}&path=\\\\TempState".format(
url, package_full_name))
recordings = json.loads(response.read().decode())
recording_names = []
for recording in recordings["Items"]:
# Check if the recording contains any file data.
response = urllib.request.urlopen(
"{}/api/filesystem/apps/files?knownfolderid="
"LocalAppData&packagefullname={}&path=\\\\TempState\\{}".format(
url, package_full_name, recording["Id"]))
files = json.loads(response.read().decode())
if len(files["Items"]) > 0:
recording_names.append(recording["Id"])
recording_names.sort()
print("=> Found a total of {} recordings".format(
len(recording_names)))
return url, recording_names, package_full_name
def download_recordings(url, package_full_name, recordings, workspace_path):
for recording_name in recordings:
if recording_name is None:
return
recording_folders.append(recording_name)
recording_path = os.path.join(workspace_path, recording_name)
mkdir_if_not_exists(recording_path)
print("Downloading recording {}...".format(recording_name))
response = urllib.request.urlopen(
"{}/api/filesystem/apps/files?knownfolderid="
"LocalAppData&packagefullname={}&path=\\\\TempState\\{}".format(
url, package_full_name, recording_name))
files = json.loads(response.read().decode())
for file in files["Items"]:
if file["Type"] != 32:
continue
destination_path = os.path.join(recording_path, file["Id"])
if os.path.exists(destination_path):
print("=> Skipping, already downloaded:", file["Id"])
continue
print("=> Downloading:", file["Id"])
urllib.request.urlretrieve(
"{}/api/filesystem/apps/file?knownfolderid=LocalAppData&" \
"packagefullname={}&filename=\\\\TempState\\{}\\{}".format(
url, package_full_name,
recording_name, file["Id"]), destination_path)
def delete_recordings(url, package_full_name, recordings):
for recording_name in recordings:
if recording_name is None:
return
print("Deleting recording {}...".format(recording_name))
response = urllib.request.urlopen(
"{}/api/filesystem/apps/files?knownfolderid="
"LocalAppData&packagefullname={}&path=\\\\TempState\\{}".format(
url, package_full_name, recording_name))
files = json.loads(response.read().decode())
for file in files["Items"]:
if file["Type"] != 32:
continue
print("=> Deleting:", file["Id"])
urllib.request.urlopen(urllib.request.Request(
"{}/api/filesystem/apps/file?knownfolderid=LocalAppData&" \
"packagefullname={}&filename=\\\\TempState\\{}\\{}".format(
url, package_full_name,
recording_name, file["Id"]), method="DELETE"))
def mkdir_if_not_exists(path):
if not os.path.exists(path):
os.makedirs(path)
print("Directory " + path + " created")
#Arguments: Username for HoloLens Portal, Password for HoloLens portal, Folder, where to download, HoloLensIP, Delete after dowload
def convert_images(folder):
for r, d, f in os.walk(folder):
for file in f:
# print(file)
if '.pgm' in file or '.ppm' in file:
print(file)
if '.pgm' in file:
img = Image.open(r + "/" + file)
img = img.transpose(Image.ROTATE_270)
else:
f = open(r + "/" + file, 'rb')
line = f.readline()
line = f.readline()
width = int(line.split(b' ')[0])
height = int(line.split(b' ')[1])
line = f.readline()
data = f.read()
img = Image.frombytes("RGB", (width, height), data, "raw", "BGRX", 0, 1)
f.close()
filename = r + "/" + file.split(".")[0] + ".jpg"
print("saving as: " + filename)
img.save(filename)
username = sys.argv[1]
password = sys.argv[2]
folder = sys.argv[3]
IP = sys.argv[4]
delAfter = sys.argv[5]
mkdir_if_not_exists(folder)
url, records, package_full_name = connect(IP, username, password)
download_recordings(url, package_full_name, records, folder)
if delAfter == "1":
delete_recordings(url, package_full_name, records)
#extract tars
sensors = ["pv", "vlc_ll", "vlc_lf", "vlc_rf", "vlc_rr", "long_throw_depth"]
print("Extracting images")
for recording in recording_folders:
for sensor in sensors:
tarpath = folder + recording + "/" + sensor + ".tar"
if os.path.isfile(tarpath):
print("Extracting from: " + tarpath)
tar = tarfile.open(tarpath)
tar.extractall(folder + recording + "/")
# convert PV and rotate vlc images
print("Converting image files")
cams = sensors[0:5]
for cam in cams:
print("Converting files in: " + folder + recording + "/" + cam)
convert_images(folder + recording + "/" + cam)