from picamera2 import Picamera2
from picamera2.encoders import MJPEGEncoder, H264Encoder, Quality
from picamera2.outputs import FileOutput, CircularOutput2
from libcamera import Transform

tuning = Picamera2.load_tuning_file("imx708_noir.json")
algo = Picamera2.find_tuning_algo(tuning, "rpi.agc")
algo["channels"][0]["metering_modes"]["custom"] = {"weights": [0,0,0,0,15,1,0,1,0,0,1,0,0,1,0]}

picam2 = Picamera2(tuning=tuning)
picam2.pre_callback = apply_timestamp

config = picam2.create_video_configuration(
    main={"size": (1280, 720), "format": "RGB888"}, # <---------- setting format
    lores={"size": (640, 360)},
    transform=Transform(hflip=True, vflip=True),
    buffer_count=10,
    encode="main")
picam2.configure(config)

picam2.set_controls({"FrameRate": 25})
picam2.set_controls({"NoiseReductionMode": 1})

capture_encoder = H264Encoder(bitrate=10_000_000) # <-------- encoder for .mp4's
capture_encoder.size = config["main"]["size"]
capture_encoder.format = config["main"]["format"]
capture_encoder.audio = True

circ = CircularOutput2(buffer_duration_ms=60_000)
capture_encoder.output = [circ]

stream_encoder = MJPEGEncoder()
stream_output = StreamingOutput()
picam2.start_recording(stream_encoder, FileOutput(stream_output), quality=Quality.MEDIUM)
picam2.start_encoder(capture_encoder, name="main")

from time import strftime
from copy import copy
from picamera2.outputs import CircularOutput2, PyavOutput

# clone the circular output to allow overlapping captures
is_list = isinstance(capture_encoder.output, list)
if is_list:
    circ = next(o for o in capture_encoder.output if not o._output)
else:
    circ = capture_encoder.output

clone = CircularOutput2(buffer_duration_ms=circ.buffer_duration_ms)
clone._circular = copy(circ._circular)
clone._streams = circ._streams
clone.start()

if is_list:
    capture_encoder.output.append(clone)
else:
    capture_encoder.output = [circ, clone]

timestamp = strftime("%Y-%m-%d_%H-%M-%S")
pyavout = PyavOutput(f"{timestamp}.mp4") # <-------- creating PyavOutput
circ.open_output(pyavout)

# later...
circ.stop()