mirror of
https://github.com/blakeblackshear/frigate.git
synced 2024-11-21 19:07:46 +01:00
414 lines
15 KiB
Python
414 lines
15 KiB
Python
import datetime
|
|
import json
|
|
import logging
|
|
import os
|
|
import queue
|
|
import subprocess as sp
|
|
import threading
|
|
import time
|
|
from collections import defaultdict
|
|
from pathlib import Path
|
|
|
|
import psutil
|
|
import shutil
|
|
|
|
from frigate.config import FrigateConfig
|
|
from frigate.const import RECORD_DIR, CLIPS_DIR, CACHE_DIR
|
|
from frigate.models import Event
|
|
|
|
from peewee import fn
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class EventProcessor(threading.Thread):
|
|
def __init__(
|
|
self, config, camera_processes, event_queue, event_processed_queue, stop_event
|
|
):
|
|
threading.Thread.__init__(self)
|
|
self.name = "event_processor"
|
|
self.config = config
|
|
self.camera_processes = camera_processes
|
|
self.cached_clips = {}
|
|
self.event_queue = event_queue
|
|
self.event_processed_queue = event_processed_queue
|
|
self.events_in_process = {}
|
|
self.stop_event = stop_event
|
|
|
|
def should_create_clip(self, camera, event_data):
|
|
if event_data["false_positive"]:
|
|
return False
|
|
|
|
# if there are required zones and there is no overlap
|
|
required_zones = self.config.cameras[camera].clips.required_zones
|
|
if len(required_zones) > 0 and not set(event_data["entered_zones"]) & set(
|
|
required_zones
|
|
):
|
|
logger.debug(
|
|
f"Not creating clip for {event_data['id']} because it did not enter required zones"
|
|
)
|
|
return False
|
|
|
|
return True
|
|
|
|
def refresh_cache(self):
|
|
cached_files = os.listdir(CACHE_DIR)
|
|
|
|
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(CACHE_DIR):
|
|
files_in_use.append(nt.path.split("/")[-1])
|
|
except:
|
|
continue
|
|
|
|
for f in cached_files:
|
|
if f in files_in_use or f in self.cached_clips:
|
|
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(CACHE_DIR, f)}",
|
|
]
|
|
p = sp.run(ffprobe_cmd, capture_output=True)
|
|
if p.returncode == 0:
|
|
duration = float(p.stdout.decode().strip())
|
|
else:
|
|
logger.info(f"bad file: {f}")
|
|
os.remove(os.path.join(CACHE_DIR, f))
|
|
continue
|
|
|
|
self.cached_clips[f] = {
|
|
"path": f,
|
|
"camera": camera,
|
|
"start_time": start_time.timestamp(),
|
|
"duration": duration,
|
|
}
|
|
|
|
if len(self.events_in_process) > 0:
|
|
earliest_event = min(
|
|
self.events_in_process.values(), key=lambda x: x["start_time"]
|
|
)["start_time"]
|
|
else:
|
|
earliest_event = datetime.datetime.now().timestamp()
|
|
|
|
# if the earliest event is more tha max seconds ago, cap it
|
|
max_seconds = self.config.clips.max_seconds
|
|
earliest_event = max(
|
|
earliest_event,
|
|
datetime.datetime.now().timestamp() - self.config.clips.max_seconds,
|
|
)
|
|
|
|
for f, data in list(self.cached_clips.items()):
|
|
if earliest_event - 90 > data["start_time"] + data["duration"]:
|
|
del self.cached_clips[f]
|
|
logger.debug(f"Cleaning up cached file {f}")
|
|
os.remove(os.path.join(CACHE_DIR, f))
|
|
|
|
# if we are still using more than 90% of the cache, proactively cleanup
|
|
cache_usage = shutil.disk_usage("/tmp/cache")
|
|
if (
|
|
cache_usage.used / cache_usage.total > 0.9
|
|
and cache_usage.free < 200000000
|
|
and len(self.cached_clips) > 0
|
|
):
|
|
logger.warning("More than 90% of the cache is used.")
|
|
logger.warning(
|
|
"Consider increasing space available at /tmp/cache or reducing max_seconds in your clips config."
|
|
)
|
|
logger.warning("Proactively cleaning up the cache...")
|
|
while cache_usage.used / cache_usage.total > 0.9:
|
|
oldest_clip = min(
|
|
self.cached_clips.values(), key=lambda x: x["start_time"]
|
|
)
|
|
del self.cached_clips[oldest_clip["path"]]
|
|
os.remove(os.path.join(CACHE_DIR, oldest_clip["path"]))
|
|
cache_usage = shutil.disk_usage("/tmp/cache")
|
|
|
|
def create_clip(self, camera, event_data, pre_capture, post_capture):
|
|
# get all clips from the camera with the event sorted
|
|
sorted_clips = sorted(
|
|
[c for c in self.cached_clips.values() if c["camera"] == camera],
|
|
key=lambda i: i["start_time"],
|
|
)
|
|
|
|
# if there are no clips in the cache or we are still waiting on a needed file check every 5 seconds
|
|
wait_count = 0
|
|
while (
|
|
len(sorted_clips) == 0
|
|
or sorted_clips[-1]["start_time"] + sorted_clips[-1]["duration"]
|
|
< event_data["end_time"] + post_capture
|
|
):
|
|
if wait_count > 4:
|
|
logger.warning(
|
|
f"Unable to create clip for {camera} and event {event_data['id']}. There were no cache files for this event."
|
|
)
|
|
return False
|
|
logger.debug(f"No cache clips for {camera}. Waiting...")
|
|
time.sleep(5)
|
|
self.refresh_cache()
|
|
# get all clips from the camera with the event sorted
|
|
sorted_clips = sorted(
|
|
[c for c in self.cached_clips.values() if c["camera"] == camera],
|
|
key=lambda i: i["start_time"],
|
|
)
|
|
wait_count += 1
|
|
|
|
playlist_start = event_data["start_time"] - pre_capture
|
|
playlist_end = event_data["end_time"] + post_capture
|
|
playlist_lines = []
|
|
for clip in sorted_clips:
|
|
# clip ends before playlist start time, skip
|
|
if clip["start_time"] + clip["duration"] < playlist_start:
|
|
continue
|
|
# clip starts after playlist ends, finish
|
|
if clip["start_time"] > playlist_end:
|
|
break
|
|
playlist_lines.append(f"file '{os.path.join(CACHE_DIR,clip['path'])}'")
|
|
# if this is the starting clip, add an inpoint
|
|
if clip["start_time"] < playlist_start:
|
|
playlist_lines.append(
|
|
f"inpoint {int(playlist_start-clip['start_time'])}"
|
|
)
|
|
# if this is the ending clip, add an outpoint
|
|
if clip["start_time"] + clip["duration"] > playlist_end:
|
|
playlist_lines.append(
|
|
f"outpoint {int(playlist_end-clip['start_time'])}"
|
|
)
|
|
|
|
clip_name = f"{camera}-{event_data['id']}"
|
|
ffmpeg_cmd = [
|
|
"ffmpeg",
|
|
"-y",
|
|
"-protocol_whitelist",
|
|
"pipe,file",
|
|
"-f",
|
|
"concat",
|
|
"-safe",
|
|
"0",
|
|
"-i",
|
|
"-",
|
|
"-c",
|
|
"copy",
|
|
"-movflags",
|
|
"+faststart",
|
|
f"{os.path.join(CLIPS_DIR, clip_name)}.mp4",
|
|
]
|
|
|
|
p = sp.run(
|
|
ffmpeg_cmd,
|
|
input="\n".join(playlist_lines),
|
|
encoding="ascii",
|
|
capture_output=True,
|
|
)
|
|
if p.returncode != 0:
|
|
logger.error(p.stderr)
|
|
return False
|
|
return True
|
|
|
|
def run(self):
|
|
while not self.stop_event.is_set():
|
|
try:
|
|
event_type, camera, event_data = self.event_queue.get(timeout=10)
|
|
except queue.Empty:
|
|
if not self.stop_event.is_set():
|
|
self.refresh_cache()
|
|
continue
|
|
|
|
logger.debug(f"Event received: {event_type} {camera} {event_data['id']}")
|
|
self.refresh_cache()
|
|
|
|
if event_type == "start":
|
|
self.events_in_process[event_data["id"]] = event_data
|
|
|
|
if event_type == "end":
|
|
clips_config = self.config.cameras[camera].clips
|
|
|
|
clip_created = False
|
|
if self.should_create_clip(camera, event_data):
|
|
if clips_config.enabled and (
|
|
clips_config.objects is None
|
|
or event_data["label"] in clips_config.objects
|
|
):
|
|
clip_created = self.create_clip(
|
|
camera,
|
|
event_data,
|
|
clips_config.pre_capture,
|
|
clips_config.post_capture,
|
|
)
|
|
|
|
if clip_created or event_data["has_snapshot"]:
|
|
Event.create(
|
|
id=event_data["id"],
|
|
label=event_data["label"],
|
|
camera=camera,
|
|
start_time=event_data["start_time"],
|
|
end_time=event_data["end_time"],
|
|
top_score=event_data["top_score"],
|
|
false_positive=event_data["false_positive"],
|
|
zones=list(event_data["entered_zones"]),
|
|
thumbnail=event_data["thumbnail"],
|
|
has_clip=clip_created,
|
|
has_snapshot=event_data["has_snapshot"],
|
|
)
|
|
del self.events_in_process[event_data["id"]]
|
|
self.event_processed_queue.put((event_data["id"], camera, clip_created))
|
|
|
|
logger.info(f"Exiting event processor...")
|
|
|
|
|
|
class EventCleanup(threading.Thread):
|
|
def __init__(self, config: FrigateConfig, stop_event):
|
|
threading.Thread.__init__(self)
|
|
self.name = "event_cleanup"
|
|
self.config = config
|
|
self.stop_event = stop_event
|
|
self.camera_keys = list(self.config.cameras.keys())
|
|
|
|
def expire(self, media):
|
|
## Expire events from unlisted cameras based on the global config
|
|
if media == "clips":
|
|
retain_config = self.config.clips.retain
|
|
file_extension = "mp4"
|
|
update_params = {"has_clip": False}
|
|
else:
|
|
retain_config = self.config.snapshots.retain
|
|
file_extension = "jpg"
|
|
update_params = {"has_snapshot": False}
|
|
|
|
distinct_labels = (
|
|
Event.select(Event.label)
|
|
.where(Event.camera.not_in(self.camera_keys))
|
|
.distinct()
|
|
)
|
|
|
|
# loop over object types in db
|
|
for l in distinct_labels:
|
|
# get expiration time for this label
|
|
expire_days = retain_config.objects.get(l.label, retain_config.default)
|
|
expire_after = (
|
|
datetime.datetime.now() - datetime.timedelta(days=expire_days)
|
|
).timestamp()
|
|
# grab all events after specific time
|
|
expired_events = Event.select().where(
|
|
Event.camera.not_in(self.camera_keys),
|
|
Event.start_time < expire_after,
|
|
Event.label == l.label,
|
|
)
|
|
# delete the media from disk
|
|
for event in expired_events:
|
|
media_name = f"{event.camera}-{event.id}"
|
|
media = Path(f"{os.path.join(CLIPS_DIR, media_name)}.{file_extension}")
|
|
media.unlink(missing_ok=True)
|
|
# update the clips attribute for the db entry
|
|
update_query = Event.update(update_params).where(
|
|
Event.camera.not_in(self.camera_keys),
|
|
Event.start_time < expire_after,
|
|
Event.label == l.label,
|
|
)
|
|
update_query.execute()
|
|
|
|
## Expire events from cameras based on the camera config
|
|
for name, camera in self.config.cameras.items():
|
|
if media == "clips":
|
|
retain_config = camera.clips.retain
|
|
else:
|
|
retain_config = camera.snapshots.retain
|
|
# get distinct objects in database for this camera
|
|
distinct_labels = (
|
|
Event.select(Event.label).where(Event.camera == name).distinct()
|
|
)
|
|
|
|
# loop over object types in db
|
|
for l in distinct_labels:
|
|
# get expiration time for this label
|
|
expire_days = retain_config.objects.get(l.label, retain_config.default)
|
|
expire_after = (
|
|
datetime.datetime.now() - datetime.timedelta(days=expire_days)
|
|
).timestamp()
|
|
# grab all events after specific time
|
|
expired_events = Event.select().where(
|
|
Event.camera == name,
|
|
Event.start_time < expire_after,
|
|
Event.label == l.label,
|
|
)
|
|
# delete the grabbed clips from disk
|
|
for event in expired_events:
|
|
media_name = f"{event.camera}-{event.id}"
|
|
media = Path(
|
|
f"{os.path.join(CLIPS_DIR, media_name)}.{file_extension}"
|
|
)
|
|
media.unlink(missing_ok=True)
|
|
# update the clips attribute for the db entry
|
|
update_query = Event.update(update_params).where(
|
|
Event.camera == name,
|
|
Event.start_time < expire_after,
|
|
Event.label == l.label,
|
|
)
|
|
update_query.execute()
|
|
|
|
def purge_duplicates(self):
|
|
duplicate_query = """with grouped_events as (
|
|
select id,
|
|
label,
|
|
camera,
|
|
has_snapshot,
|
|
has_clip,
|
|
row_number() over (
|
|
partition by label, camera, round(start_time/5,0)*5
|
|
order by end_time-start_time desc
|
|
) as copy_number
|
|
from event
|
|
)
|
|
|
|
select distinct id, camera, has_snapshot, has_clip from grouped_events
|
|
where copy_number > 1;"""
|
|
|
|
duplicate_events = Event.raw(duplicate_query)
|
|
for event in duplicate_events:
|
|
logger.debug(f"Removing duplicate: {event.id}")
|
|
media_name = f"{event.camera}-{event.id}"
|
|
if event.has_snapshot:
|
|
media = Path(f"{os.path.join(CLIPS_DIR, media_name)}.jpg")
|
|
media.unlink(missing_ok=True)
|
|
if event.has_clip:
|
|
media = Path(f"{os.path.join(CLIPS_DIR, media_name)}.mp4")
|
|
media.unlink(missing_ok=True)
|
|
|
|
(
|
|
Event.delete()
|
|
.where(Event.id << [event.id for event in duplicate_events])
|
|
.execute()
|
|
)
|
|
|
|
def run(self):
|
|
# only expire events every 5 minutes
|
|
while not self.stop_event.wait(300):
|
|
self.expire("clips")
|
|
self.expire("snapshots")
|
|
self.purge_duplicates()
|
|
|
|
# drop events from db where has_clip and has_snapshot are false
|
|
delete_query = Event.delete().where(
|
|
Event.has_clip == False, Event.has_snapshot == False
|
|
)
|
|
delete_query.execute()
|
|
|
|
logger.info(f"Exiting event cleanup...")
|