set up to work with the raspi gpio and such
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64
webcam.py
64
webcam.py
@ -2,7 +2,8 @@ from datetime import datetime, date, time, timedelta
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import os
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import cv2
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import gpiod
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from gpiod import Direction, Value
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import math
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from gpiod.line import Direction, Value
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#from wakepy import keep
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def five_minute_segment_from(the_time):
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@ -20,19 +21,21 @@ long_delay = timedelta(minutes=1)
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last_time_stamp = five_minute_segment_from(datetime.now())
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# live webcam feed
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camera = cv2.VideoCapture(0)
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camera = cv2.VideoCapture("/dev/video0")
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if not camera.isOpened():
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print("Cannot open camera")
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exit()
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# video writer
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fourcc = cv2.VideoWriter_fourcc(*'H264')
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fourcc = cv2.VideoWriter_fourcc(*'x264')
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camera_fps = camera.get(cv2.CAP_PROP_FPS)
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camera.set(cv2.CAP_PROP_FRAME_WIDTH, 1280)
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camera.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)
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video_writer = cv2.VideoWriter(path_to_video_at(last_time_stamp),
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fourcc,
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camera_fps,
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(int(camera.get(3)),int(camera.get(4))), #resolution
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(cv2.VIDEOWRITER_PROP_HW_ACCELERATION, cv2.VIDEO_ACCELERATION_ANY)
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)
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# video feed from previously captured video
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@ -50,30 +53,31 @@ queue = [(False, None)] * math.floor(camera_fps * 32) #queue of 32 seconds of fr
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idx = 0 # current index into the frame queue
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lines = {
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"five_second": 1,
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"thirty_second": 2,
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"five_minute": 3,
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"twelve_hour": 4,
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"twenty_four_hour": 5
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"five_second": 2,
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"thirty_second": 3,
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"five_minute": 4,
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"twelve_hour": 5,
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"twenty_four_hour": 6
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}
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input_line = gpiod.LineSettings(direction=Direction.INPUT)
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#with keep.presenting():
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with gpiod.request_lines(
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"/dev/gpiochip0",
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"/dev/gpiochip4",
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consumer="mirror-to-yesterday",
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config={
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lines.five_second: gpiod.LineSettings(direction=Direction.INPUT),
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lines.thirty_second: gpiod.LineSettings(direction=Direction.INPUT),
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lines.five_minute: gpiod.LineSettings(direction=Direction.INPUT),
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lines.twelve_hour: gpiod.LineSettings(direction=Direction.INPUT),
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lines.twenty_four_hour: gpiod.LineSettings(direction=Direction.INPUT)
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lines["five_second"]: input_line,
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lines["thirty_second"]: input_line,
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lines["five_minute"]: input_line,
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lines["twelve_hour"]: input_line,
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lines["twenty_four_hour"]: input_line,
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}
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) as io_lines:
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while(True):
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if last_time_stamp != five_minute_segment_from(datetime.now()):
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# find file older than our long delay
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oldest_file_path = path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(hours=24) - timedelta(minutes=10)))
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oldest_file_path = path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=5) - timedelta(minutes=10)))
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if os.path.isfile(oldest_file_path):
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print(f"deleting old file {oldest_file_path}")
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os.remove(oldest_file_path)
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@ -91,13 +95,15 @@ with gpiod.request_lines(
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if twenty_four_hours_ago.isOpened():
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twenty_four_hours_ago.release()
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twenty_four_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(hours=24))))
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#twenty_four_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(hours=24))))
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twenty_four_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=3))))
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if twelve_hours_ago.isOpened():
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twelve_hours_ago.release()
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twelve_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(hours=12))))
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#twelve_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(hours=12))))
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twelve_hours_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=2))))
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if five_minutes_ago.isOpened():
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five_minutes_ago.release()
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five_minutes_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=5))))
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five_minutes_ago = cv2.VideoCapture(path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=1))))
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last_time_stamp = five_minute_segment_from(datetime.now())
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@ -117,16 +123,16 @@ with gpiod.request_lines(
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}
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#valid, the_frame = frames.five_second
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if io_lines.get_value(lines.twenty_four_hour):
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valid, the_frame = frames.twenty_four_hour
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elif io_lines.get_value(lines.twelve_hour):
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valid, the_frame = frames.twelve_hour
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elif io_lines.get_value(lines.five_minute):
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valid, the_frame = frames.five_minute
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elif io_lines.get_value(lines.thirty_second):
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valid, the_frame = frames.thirty_second
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else: #if io_lines.get_value(lines.five_second)
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valid, the_frame = frames.five_second
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if not io_lines.get_value(lines["twenty_four_hour"]):
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valid, the_frame = frames["twenty_four_hour"]
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elif not io_lines.get_value(lines["twelve_hour"]):
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valid, the_frame = frames["twelve_hour"]
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elif not io_lines.get_value(lines["five_minute"]):
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valid, the_frame = frames["five_minute"]
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elif not io_lines.get_value(lines["thirty_second"]):
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valid, the_frame = frames["thirty_second"]
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else: #if not io_lines.get_value(lines.five_second)
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valid, the_frame = frames["five_second"]
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if valid:
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cv2.imshow("mirror", the_frame)
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