mirror of
https://github.com/blakeblackshear/frigate.git
synced 2024-11-21 19:07:46 +01:00
122 lines
3.8 KiB
Python
122 lines
3.8 KiB
Python
import datetime
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import json
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import logging
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import os
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import queue
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import subprocess as sp
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import threading
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import time
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from collections import defaultdict
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from pathlib import Path
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import psutil
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from frigate.config import FrigateConfig
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from frigate.const import RECORD_DIR, CLIPS_DIR, CACHE_DIR
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logger = logging.getLogger(__name__)
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SECONDS_IN_DAY = 60 * 60 * 24
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def remove_empty_directories(directory):
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# list all directories recursively and sort them by path,
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# longest first
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paths = sorted(
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[x[0] for x in os.walk('/media/frigate/recordings/')],
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key=lambda p: len(str(p)),
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reverse=True,
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)
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for path in paths:
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if len(os.listdir(path)) == 0:
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os.rmdir(path)
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class RecordingMaintainer(threading.Thread):
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def __init__(self, config: FrigateConfig, stop_event):
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threading.Thread.__init__(self)
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self.name = 'recording_maint'
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self.config = config
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self.stop_event = stop_event
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def move_files(self):
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recordings = [d for d in os.listdir(RECORD_DIR) if os.path.isfile(os.path.join(RECORD_DIR, d)) and d.endswith(".mp4")]
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files_in_use = []
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for process in psutil.process_iter():
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if process.name() != 'ffmpeg':
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continue
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try:
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flist = process.open_files()
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if flist:
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for nt in flist:
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if nt.path.startswith(RECORD_DIR):
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files_in_use.append(nt.path.split('/')[-1])
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except:
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continue
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for f in recordings:
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if f in files_in_use:
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continue
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camera = '-'.join(f.split('-')[:-1])
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start_time = datetime.datetime.strptime(f.split('-')[-1].split('.')[0], '%Y%m%d%H%M%S')
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ffprobe_cmd = " ".join([
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'ffprobe',
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'-v',
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'error',
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'-show_entries',
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'format=duration',
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'-of',
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'default=noprint_wrappers=1:nokey=1',
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f"{os.path.join(RECORD_DIR,f)}"
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])
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p = sp.Popen(ffprobe_cmd, stdout=sp.PIPE, shell=True)
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(output, err) = p.communicate()
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p_status = p.wait()
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if p_status == 0:
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duration = float(output.decode('utf-8').strip())
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else:
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logger.info(f"bad file: {f}")
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os.remove(os.path.join(RECORD_DIR,f))
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continue
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directory = os.path.join(RECORD_DIR, start_time.strftime('%Y-%m/%d/%H'), camera)
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if not os.path.exists(directory):
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os.makedirs(directory)
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file_name = f"{start_time.strftime('%M.%S.mp4')}"
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os.rename(os.path.join(RECORD_DIR,f), os.path.join(directory,file_name))
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def expire_files(self):
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delete_before = {}
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for name, camera in self.config.cameras.items():
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delete_before[name] = datetime.datetime.now().timestamp() - SECONDS_IN_DAY*camera.record.retain_days
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for p in Path('/media/frigate/recordings').rglob("*.mp4"):
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if not p.parent in delete_before:
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continue
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if p.stat().st_mtime < delete_before[p.parent]:
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p.unlink(missing_ok=True)
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def run(self):
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counter = 0
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self.expire_files()
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while(True):
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if self.stop_event.is_set():
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logger.info(f"Exiting recording maintenance...")
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break
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# only expire events every 10 minutes, but check for new files every 10 seconds
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time.sleep(10)
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counter = counter + 1
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if counter > 60:
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self.expire_files()
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remove_empty_directories(RECORD_DIR)
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counter = 0
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self.move_files()
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