mirror of
https://github.com/blakeblackshear/frigate.git
synced 2024-10-15 20:07:23 +02:00
143 lines
4.4 KiB
Python
143 lines
4.4 KiB
Python
import datetime
|
|
import itertools
|
|
import logging
|
|
import os
|
|
import random
|
|
import string
|
|
import subprocess as sp
|
|
import threading
|
|
from pathlib import Path
|
|
|
|
import psutil
|
|
|
|
from frigate.config import FrigateConfig
|
|
from frigate.const import RECORD_DIR
|
|
from frigate.models import Recordings
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
SECONDS_IN_DAY = 60 * 60 * 24
|
|
|
|
|
|
def remove_empty_directories(directory):
|
|
# list all directories recursively and sort them by path,
|
|
# longest first
|
|
paths = sorted(
|
|
[x[0] for x in os.walk(RECORD_DIR)],
|
|
key=lambda p: len(str(p)),
|
|
reverse=True,
|
|
)
|
|
for path in paths:
|
|
# don't delete the parent
|
|
if path == RECORD_DIR:
|
|
continue
|
|
if len(os.listdir(path)) == 0:
|
|
os.rmdir(path)
|
|
|
|
|
|
class RecordingMaintainer(threading.Thread):
|
|
def __init__(self, config: FrigateConfig, stop_event):
|
|
threading.Thread.__init__(self)
|
|
self.name = "recording_maint"
|
|
self.config = config
|
|
self.stop_event = stop_event
|
|
|
|
def move_files(self):
|
|
recordings = [
|
|
d
|
|
for d in os.listdir(RECORD_DIR)
|
|
if os.path.isfile(os.path.join(RECORD_DIR, d)) and d.endswith(".mp4")
|
|
]
|
|
|
|
files_in_use = []
|
|
for process in psutil.process_iter():
|
|
try:
|
|
if process.name() != "ffmpeg":
|
|
continue
|
|
flist = process.open_files()
|
|
if flist:
|
|
for nt in flist:
|
|
if nt.path.startswith(RECORD_DIR):
|
|
files_in_use.append(nt.path.split("/")[-1])
|
|
except:
|
|
continue
|
|
|
|
for f in recordings:
|
|
if f in files_in_use:
|
|
continue
|
|
|
|
basename = os.path.splitext(f)[0]
|
|
camera, date = basename.rsplit("-", maxsplit=1)
|
|
start_time = datetime.datetime.strptime(date, "%Y%m%d%H%M%S")
|
|
|
|
ffprobe_cmd = [
|
|
"ffprobe",
|
|
"-v",
|
|
"error",
|
|
"-show_entries",
|
|
"format=duration",
|
|
"-of",
|
|
"default=noprint_wrappers=1:nokey=1",
|
|
f"{os.path.join(RECORD_DIR, f)}",
|
|
]
|
|
p = sp.run(ffprobe_cmd, capture_output=True)
|
|
if p.returncode == 0:
|
|
duration = float(p.stdout.decode().strip())
|
|
end_time = start_time + datetime.timedelta(seconds=duration)
|
|
else:
|
|
logger.info(f"bad file: {f}")
|
|
os.remove(os.path.join(RECORD_DIR, f))
|
|
continue
|
|
|
|
directory = os.path.join(
|
|
RECORD_DIR, start_time.strftime("%Y-%m/%d/%H"), camera
|
|
)
|
|
|
|
if not os.path.exists(directory):
|
|
os.makedirs(directory)
|
|
|
|
file_name = f"{start_time.strftime('%M.%S.mp4')}"
|
|
file_path = os.path.join(directory, file_name)
|
|
|
|
os.rename(os.path.join(RECORD_DIR, f), file_path)
|
|
|
|
rand_id = "".join(
|
|
random.choices(string.ascii_lowercase + string.digits, k=6)
|
|
)
|
|
Recordings.create(
|
|
id=f"{start_time.timestamp()}-{rand_id}",
|
|
camera=camera,
|
|
path=file_path,
|
|
start_time=start_time.timestamp(),
|
|
end_time=end_time.timestamp(),
|
|
duration=duration,
|
|
)
|
|
|
|
def expire_files(self):
|
|
delete_before = {}
|
|
for name, camera in self.config.cameras.items():
|
|
delete_before[name] = (
|
|
datetime.datetime.now().timestamp()
|
|
- SECONDS_IN_DAY * camera.record.retain_days
|
|
)
|
|
|
|
for p in Path("/media/frigate/recordings").rglob("*.mp4"):
|
|
if not p.parent.name in delete_before:
|
|
continue
|
|
if p.stat().st_mtime < delete_before[p.parent.name]:
|
|
Recordings.delete().where(Recordings.path == str(p)).execute()
|
|
p.unlink(missing_ok=True)
|
|
|
|
def run(self):
|
|
for counter in itertools.cycle(range(60)):
|
|
if self.stop_event.wait(10):
|
|
logger.info(f"Exiting recording maintenance...")
|
|
break
|
|
|
|
# only expire events every 10 minutes, but check for new files every 10 seconds
|
|
if counter == 0:
|
|
self.expire_files()
|
|
remove_empty_directories(RECORD_DIR)
|
|
|
|
self.move_files()
|