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Add sub stream recording with adaptive quality playback (#24009)

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* add sub stream recording with adaptive quality playback

Optionally record a second, lower bitrate stream alongside the main
recording stream via a `record_sub` input role and `record.sub` config block, with its own retention windows.
Recordings rows now carry the stream type plus the media details needed to serve both streams from one manifest: video codec, audio presence, audio codec and rate, and a record-time keyframe index.

Playback resolves coverage across both streams and merges them into a single VOD sequence, falling back to a discontinuity manifest with per-clip init segments when the media signatures differ. The player exposes a quality selector, and an auto governor picks the stream from stall time, bandwidth, codec support, and the save-data hint.

* fix tests and i18n
This commit is contained in:
Josh Hawkins
2026-09-12 07:30:04 -06:00
committed by Nicolas Mowen
parent f7c5500ea8
commit 1498231eb9
68 changed files with 6794 additions and 602 deletions
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frigate/storage.py
+42 -24
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@@ -9,7 +9,12 @@ from pathlib import Path
from peewee import SQL, fn
from frigate.config import FrigateConfig
from frigate.const import RECORD_DIR, REPLAY_CAMERA_PREFIX
from frigate.const import (
RECORD_DIR,
REPLAY_CAMERA_PREFIX,
STREAM_TYPE_MAIN,
STREAM_TYPE_SUB,
)
from frigate.models import Event, Recordings
from frigate.util.builtin import clear_and_unlink
@@ -49,30 +54,43 @@ class StorageMaintainer(threading.Thread):
)
}
# calculate MB/hr from last 100 segments
try:
# Subquery to get last 100 segments, then average their bandwidth
last_100 = (
Recordings.select(bandwidth_equation.alias("bw"))
.where(Recordings.camera == camera, Recordings.segment_size > 0)
.order_by(Recordings.start_time.desc())
.limit(100)
.alias("recent")
)
bandwidth = round(
Recordings.select(fn.AVG(SQL("bw"))).from_(last_100).scalar()
* 3600,
2,
)
if bandwidth > MAX_CALCULATED_BANDWIDTH:
logger.warning(
f"{camera} has a bandwidth of {bandwidth} MB/hr which exceeds the expected maximum. This typically indicates an issue with the cameras recordings."
# calculate MB/hr from the last 100 segments of each stream
# type and sum the rates; mixing streams would average small
# sub segments against large main segments and underestimate
# the true write rate
bandwidth = 0
for stream_type in (STREAM_TYPE_MAIN, STREAM_TYPE_SUB):
try:
# Subquery to get last 100 segments, then average their bandwidth
last_100 = (
Recordings.select(bandwidth_equation.alias("bw"))
.where(
Recordings.camera == camera,
Recordings.segment_size > 0,
Recordings.stream_type == stream_type,
)
.order_by(Recordings.start_time.desc())
.limit(100)
.alias("recent")
)
bandwidth = MAX_CALCULATED_BANDWIDTH
except TypeError:
bandwidth = 0
bandwidth += round(
Recordings.select(fn.AVG(SQL("bw")))
.from_(last_100)
.scalar()
* 3600,
2,
)
except TypeError:
pass
bandwidth = round(bandwidth, 2)
if bandwidth > MAX_CALCULATED_BANDWIDTH:
logger.warning(
f"{camera} has a bandwidth of {bandwidth} MB/hr which exceeds the expected maximum. This typically indicates an issue with the cameras recordings."
)
bandwidth = MAX_CALCULATED_BANDWIDTH
self.camera_storage_stats[camera]["bandwidth"] = bandwidth
logger.debug(f"{camera} has a bandwidth of {bandwidth} MiB/hr.")