shoofle/mirror-to-yesterday
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cleaning up a bit i don't remember whatever

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Shoofle 2024-07-29 12:29:52 -04:00
parent a70949804b
commit 0d43c980af
4 changed files with 41 additions and 50 deletions
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1
Pipfile
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@ -5,7 +5,6 @@ name = "pypi"
[packages]
opencv-python = "*"
python-ffmpeg = "*"
[dev-packages]

27
Pipfile.lock generated
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@ -1,7 +1,7 @@
{
"_meta": {
"hash": {
"sha256": "96b4a3ab781c5962dc20f7beaae76ca7d30cf6dd4e193b0b04e985235aabc5cb"
"sha256": "9cd65918174126dae7310623cabe06ec6e5ce3f1bb0e255262749a78a55d3839"
},
"pipfile-spec": 6,
"requires": {
@ -80,31 +80,6 @@
"index": "pypi",
"markers": "python_version >= '3.6'",
"version": "==4.10.0.84"
},
"pyee": {
"hashes": [
"sha256:5d346a7d0f861a4b2e6c47960295bd895f816725b27d656181947346be98d7c1",
"sha256:b53af98f6990c810edd9b56b87791021a8f54fd13db4edd1142438d44ba2263f"
],
"markers": "python_version >= '3.8'",
"version": "==11.1.0"
},
"python-ffmpeg": {
"hashes": [
"sha256:19ac80af5a064a2f53c245af1a909b2d7648ea045500d96d3bcd507b88d43dc7",
"sha256:d86697da8dfb39335183e336d31baf42fb217468adf5ac97fd743898240faae3"
],
"index": "pypi",
"markers": "python_version >= '3.7'",
"version": "==2.0.12"
},
"typing-extensions": {
"hashes": [
"sha256:04e5ca0351e0f3f85c6853954072df659d0d13fac324d0072316b67d7794700d",
"sha256:1a7ead55c7e559dd4dee8856e3a88b41225abfe1ce8df57b7c13915fe121ffb8"
],
"markers": "python_version >= '3.8'",
"version": "==4.12.2"
}
},
"develop": {}

8
readme.md
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@ -1 +1,7 @@
run it in python3 after `pipenv install opencv-python`
run it with python3 after `pipenv install opencv-python`
this progrram opens a fullscreen window showing a feed from camera 0 with a delay.
it will collect a lot of video files in the videos/ folder, and use them for showing a long (multiple minutes) delay
it also holds ontoo a buffer of a couple hundred frames to show shorter delays (like 5 oor 30 seconds)
it doesn't currently do anything to handle missing files, but it would be nice to give it a "default" swirly portal looking video to show
hopefully this'll run on a raspberry pi in the desert.

55
webcam.py
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@ -1,72 +1,83 @@
from datetime import datetime, date, time, timedelta
import os
import cv2
def five_minute_segment_from(the_time):
return the_time.replace(minute=(the_time.minute // 1)*1, second=0, microsecond=0)
def video_address_for(time_stamp):
def path_to_video_at(time_stamp):
return 'videos/' + str(time_stamp) + '.mkv'
#delay for long delay
long_delay = timedelta(hours=1)
queue = [(False, None)] * 100 #queue of recent frames
last_time_stamp = five_minute_segment_from(datetime.now())
# live webcam feed
camera = cv2.VideoCapture(0)
camera.set(cv2.CAP_PROP_FPS, 30.0)
if not camera.isOpened():
print("Cannot open camera")
exit()
# video writer
fourcc = cv2.VideoWriter_fourcc(*'H264')
out = cv2.VideoWriter(video_address_for(last_time_stamp), fourcc, camera.get(cv2.CAP_PROP_FPS), (int(camera.get(3)),int(camera.get(4))))
out = cv2.VideoWriter(path_to_video_at(last_time_stamp), fourcc, camera.get(cv2.CAP_PROP_FPS), (int(camera.get(3)),int(camera.get(4))))
# video feed from previously captured video
old_time = cv2.VideoCapture(video_address_for(last_time_stamp))
old_time = cv2.VideoCapture(path_to_video_at(last_time_stamp))
cv2.namedWindow("mirror", cv2.WINDOW_NORMAL)
cv2.setWindowProperty("mirror", cv2.WND_PROP_FULLSCREEN, cv2.WINDOW_FULLSCREEN)
idx = 0
offset = 0
longterm = False
while(True):
if last_time_stamp != five_minute_segment_from(datetime.now()):
# find file older than our long delay
old_file = path_to_video_at(five_minute_segment_from(datetime.now() - long_delay - timedelta(minutes=5)))
print(f"deleting old file {old_file}")
os.remove(old_file)
out.release()
out = cv2.VideoWriter(video_address_for(last_time_stamp),
out = cv2.VideoWriter(path_to_video_at(last_time_stamp),
fourcc,
camera.get(cv2.CAP_PROP_FPS),
(int(camera.get(3)), int(camera.get(4)))
)
if old_time.isOpened():
old_time.release()
old_time = cv2.VideoCapture(video_address_for(five_minute_segment_from(datetime.now() - timedelta(minutes=10))))
new_file = path_to_video_at(five_minute_segment_from(datetime.now() - timedelta(minutes=10)))
pint(f"opening the previously recorded file {new_file} to read from for long mirror")
old_time = cv2.VideoCapture(new_file)
last_time_stamp = five_minute_segment_from(datetime.now())
ret, frame = camera.read()
frame = cv2.flip(frame, 1)
#recod the frame
# record the frame to the appropriate file, and also to the short term buffer
out.write(frame)
queue[idx] = ret, frame
prev_frame_valid, prev_frame = queue[(idx - offset) % len(queue)]
old_frame_valid, old_frame = old_time.read()
if not longterm and prev_frame_valid:
cv2.imshow('mirror', prev_frame)
elif longterm and old_frame_valid:
cv2.imshow('mirror', old_frame)
showo, fr = queue[(idx - offset) % len(queue)]
if longterm:
ret2, frame2 = old_time.read()
if ret2:
cv2.imshow('vid', frame2)
elif showo:
cv2.imshow('vid', fr)
# the 'q' button is set as the quitting button you may use any desired button of your choice
key = cv2.waitKey(1) & 0xFF
if key == ord('q'):
key = cv2.waitKey(16) # listen for keyprress for some number of ms
if key & 0xFF == ord('q') or key == 27: # q or esc
break
if key == ord('a'):
if key & 0xFF == ord('a'):
offset += 1
if key == ord('d'):
if key & 0xFF == ord('d'):
offset -= 1
if key == ord('z'):
if key & 0xFF == ord('z'):
longterm = not longterm
idx = (idx + 1) % len(queue)