blakeblackshear.frigate/frigate/restream.py
Nicolas Mowen ff56262c6e
Add ability to restream birdseye (#4761)
* Try using RTSP for restream

* Add ability to get snapshot of birdseye when birdseye restream is enabled

* Write to pipe instead of encoding mpeg1

* Write to cache instead

* Use const for location

* Formatting

* Add hardware encoding for birdseye based on ffmpeg preset

* Provide framerate

* Adjust args

* Fix order

* Delete pipe file if it exists

* Cleanup spacing

* Fix spacing
2022-12-31 08:54:10 -06:00

55 lines
2.0 KiB
Python

"""Controls go2rtc restream."""
import logging
import requests
from frigate.util import escape_special_characters
from frigate.config import FrigateConfig
from frigate.const import BIRDSEYE_PIPE
from frigate.ffmpeg_presets import parse_preset_hardware_acceleration_encode
logger = logging.getLogger(__name__)
def get_manual_go2rtc_stream(camera_url: str) -> str:
"""Get a manual stream for go2rtc."""
return f"ffmpeg:{camera_url}#video=copy#audio=aac#audio=opus"
class RestreamApi:
"""Control go2rtc relay API."""
def __init__(self, config: FrigateConfig) -> None:
self.config: FrigateConfig = config
def add_cameras(self) -> None:
"""Add cameras to go2rtc."""
self.relays: dict[str, str] = {}
for cam_name, camera in self.config.cameras.items():
if not camera.restream.enabled:
continue
for input in camera.ffmpeg.inputs:
if "restream" in input.roles:
if (
input.path.startswith("rtsp")
and not camera.restream.force_audio
):
self.relays[cam_name] = escape_special_characters(input.path)
else:
# go2rtc only supports rtsp for direct relay, otherwise ffmpeg is used
self.relays[cam_name] = get_manual_go2rtc_stream(
escape_special_characters(input.path)
)
if self.config.restream.birdseye:
self.relays[
"birdseye"
] = f"exec:ffmpeg -hide_banner -f rawvideo -pix_fmt yuv420p -video_size {self.config.birdseye.width}x{self.config.birdseye.height} -r 10 -i {BIRDSEYE_PIPE} {' '.join(parse_preset_hardware_acceleration_encode(self.config.ffmpeg.hwaccel_args))} -rtsp_transport tcp -f rtsp {{output}}"
for name, path in self.relays.items():
params = {"src": path, "name": name}
requests.put("http://127.0.0.1:1984/api/streams", params=params)