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from fastapi import FastAPI
from fastapi.responses import StreamingResponse
from fastapi.staticfiles import StaticFiles
from fastapi.templating import Jinja2Templates
from starlette.requests import Request
import cv2
app = FastAPI()
# Serve static files (for HTML & JS)
app.mount("/static", StaticFiles(directory="static"), name="static")
# Jinja2 template rendering
templates = Jinja2Templates(directory="templates")
# Open webcam (or use a file)
video_source = 1 # Change to "video.mp4" for a file
cap = cv2.VideoCapture(video_source)
def generate_frames():
"""Stream video frames as MJPEG."""
while True:
success, frame = cap.read()
if not success:
break
_, buffer = cv2.imencode(".jpg", frame)
yield (b"--frame\r\n"
b"Content-Type: image/jpeg\r\n\r\n" +
buffer.tobytes() + b"\r\n")
@app.get("/")
async def homepage(request: Request):
return templates.TemplateResponse("index.html", {"request": request})
@app.get("/video")
async def video_feed():
return StreamingResponse(generate_frames(), media_type="multipart/x-mixed-replace; boundary=frame")
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