refactoring and splitting the demo laptop ver into its own file
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86be5bf621
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29
webcam.py
29
webcam.py
@ -6,7 +6,7 @@ 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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def minute_segment_from(the_time):
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# this is mocked out too be a one minute segment instead
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return the_time.replace(second=0, microsecond=0)
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#return the_time.replace(minute=(the_time.minute // 1)*1, second=0, microsecond=0)
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@ -18,7 +18,7 @@ def path_to_video_at(time_stamp):
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#delay for long delay
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long_delay = timedelta(minutes=1)
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last_time_stamp = five_minute_segment_from(datetime.now())
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last_time_stamp = minute_segment_from(datetime.now())
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# live webcam feed
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camera = cv2.VideoCapture("/dev/video0")
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@ -78,15 +78,15 @@ with gpiod.request_lines(
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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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if last_time_stamp != 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(minutes=5) - timedelta(minutes=10)))
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oldest_file_path = path_to_video_at(minute_segment_from(datetime.now() - timedelta(hours=24) - 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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video_writer.release()
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newly_recording_file_path = path_to_video_at(five_minute_segment_from(datetime.now()))
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newly_recording_file_path = path_to_video_at(minute_segment_from(datetime.now()))
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print(f"opening {newly_recording_file_path} too record this upcoming ssegment to")
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video_writer = cv2.VideoWriter(newly_recording_file_path,
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@ -98,18 +98,16 @@ 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(minutes=3))))
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twenty_four_hours_ago = cv2.VideoCapture(path_to_video_at(minute_segment_from(datetime.now() - timedelta(hours=24))))
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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(minutes=2))))
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twelve_hours_ago = cv2.VideoCapture(path_to_video_at(minute_segment_from(datetime.now() - timedelta(hours=12))))
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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=1))))
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five_minutes_ago = cv2.VideoCapture(path_to_video_at(minute_segment_from(datetime.now() - timedelta(minutes=5))))
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last_time_stamp = five_minute_segment_from(datetime.now())
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last_time_stamp = minute_segment_from(datetime.now())
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ret, frame = camera.read()
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#frame = cv2.flip(frame, 1)
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@ -145,13 +143,8 @@ with gpiod.request_lines(
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key = cv2.waitKey(16) # listen for keyprress for 16 ms
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if key & 0xFF == ord('q') or key == 27: # q or esc
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break
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"""if key & 0xFF == ord('a'):
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short_term_delay_frames += 1
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if key & 0xFF == ord('d'):
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short_term_delay_frames -= 1
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if key & 0xFF == ord('z'):
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longterm = not longterm"""
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# After the loop release the cap object
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camera.release()
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video_writer.release()
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141
webcam_demo.py
Normal file
141
webcam_demo.py
Normal file
@ -0,0 +1,141 @@
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from datetime import datetime, date, time, timedelta
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import os
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import cv2
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import math
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from wakepy import keep
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def five_minute_segment_from(the_time):
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# this is mocked out too be a one minute segment instead
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return the_time.replace(second=0, microsecond=0)
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#return the_time.replace(minute=(the_time.minute // 1)*1, second=0, microsecond=0)
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def path_to_video_at(time_stamp):
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return 'videos/' + str(time_stamp) + '.mp4' # mkv required for h264 encoding
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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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if not camera.isOpened():
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print("Cannot open camera")
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exit()
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fourcc = cv2.VideoWriter_fourcc(*'mp4v')
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camera.set(cv2.CAP_PROP_FPS, 60.0)
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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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twenty_four_hours_ago = cv2.VideoCapture(path_to_video_at(last_time_stamp - timedelta(hours=24)))
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twelve_hours_ago = cv2.VideoCapture(path_to_video_at(last_time_stamp - timedelta(hours=12)))
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five_minutes_ago = cv2.VideoCapture(path_to_video_at(last_time_stamp - timedelta(minutes=5)))
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# fullscreen window yess good
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cv2.namedWindow("mirror", cv2.WINDOW_NORMAL)
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cv2.setWindowProperty("mirror", cv2.WND_PROP_FULLSCREEN, cv2.WINDOW_FULLSCREEN)
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queue = [(False, None)] * math.floor(camera_fps * 32) #queue of 32 seconds of frames
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idx = 0 # current index into the frame queue
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lines = {
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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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mode = 4
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#with keep.presenting():
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with keep.presenting():
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while(True):
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if last_time_stamp != five_minute_segment_from(datetime.now()):
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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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video_writer.release()
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newly_recording_file_path = path_to_video_at(five_minute_segment_from(datetime.now()))
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print(f"opening {newly_recording_file_path} too record this upcoming ssegment to")
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video_writer = cv2.VideoWriter(newly_recording_file_path,
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fourcc,
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camera_fps,
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(int(camera.get(3)), int(camera.get(4))),
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(cv2.VIDEOWRITER_PROP_HW_ACCELERATION, cv2.VIDEO_ACCELERATION_ANY)
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)
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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(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(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=1))))
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last_time_stamp = five_minute_segment_from(datetime.now())
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ret, frame = camera.read()
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#frame = cv2.flip(frame, 1)
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# record the frame to the appropriate file, and also to the short term buffer
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video_writer.write(frame)
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queue[idx] = ret, frame
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frames = {
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"five_second": queue[(idx - math.floor(5*camera_fps)) % len(queue)],
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"thirty_second": queue[(idx - math.floor(30*camera_fps)) % len(queue)],
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"five_minute": five_minutes_ago.read(),
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"twelve_hour": twelve_hours_ago.read(),
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"twenty_four_hour": twenty_four_hours_ago.read(),
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}
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#valid, the_frame = frames.five_second
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if mode == 0:
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valid, the_frame = frames["twenty_four_hour"]
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elif mode == 1:
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valid, the_frame = frames["twelve_hour"]
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elif mode == 2:
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valid, the_frame = frames["five_minute"]
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elif mode == 3:
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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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idx = (idx + 1) % len(queue)
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key = cv2.waitKey(16) # listen for keyprress for 16 ms
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if key & 0xFF == ord('q') or key == 27: # q or esc
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break
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if key & 0xFF == ord('a'):
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mode = (mode - 1) % 5
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if key & 0xFF == ord('d'):
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mode = (mode + 1) % 5
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# After the loop release the cap object
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camera.release()
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video_writer.release()
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twenty_four_hours_ago.release()
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twelve_hours_ago.release()
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five_minutes_ago.release()
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# Destroy all the windows
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cv2.destroyAllWindows()
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