# Source code from the official PiCamera package
# http://picamera.readthedocs.io/en/latest/recipes2.html#web-streaming
# Requires a network connection WiFi or Ethernet
import io
import picamera
import logging
import socketserver
from threading import Condition
from http import server
# Render the HTML page for the camera stream
PAGE = """\
<html>
<head>
<title>Raspberry Pi - Live Footage</title>
</head>
<body>
<center><h1>Raspberry Pi - Live Feed Group 16</h1></center>
<center><img src="stream.mjpg" width="640" height="480"></center>
</body>
</html>
"""
class StreamingOutput(object):
def __init__(self):
self.frame = None
self.buffer = io.BytesIO()
self.condition = Condition()
def write(self, buf):
if buf.startswith(b"\xff\xd8"):
# New frame, copy the existing buffer's content and notify all
# clients it's available
self.buffer.truncate()
with self.condition:
self.frame = self.buffer.getvalue()
self.condition.notify_all()
self.buffer.seek(0)
return self.buffer.write(buf)
class StreamingHandler(server.BaseHTTPRequestHandler):
def do_GET(self):
if self.path == "/":
self.send_response(301)
self.send_header("Location", "/index.html")
self.end_headers()
elif self.path == "/index.html":
content = PAGE.encode("utf-8")
self.send_response(200)
self.send_header("Content-Type", "text/html")
self.send_header("Content-Length", len(content))
self.end_headers()
self.wfile.write(content)
elif self.path == "/stream.mjpg":
self.send_response(200)
self.send_header("Age", 0)
self.send_header("Cache-Control", "no-cache, private")
self.send_header("Pragma", "no-cache")
self.send_header(
"Content-Type", "multipart/x-mixed-replace; boundary=FRAME"
)
self.end_headers()
try:
while True:
with output.condition:
output.condition.wait()
frame = output.frame
self.wfile.write(b"--FRAME\r\n")
self.send_header("Content-Type", "image/jpeg")
self.send_header("Content-Length", len(frame))
self.end_headers()
self.wfile.write(frame)
self.wfile.write(b"\r\n")
except Exception as e:
logging.warning(
"Removed streaming client %s: %s", self.client_address, str(e)
)
else:
self.send_error(404)
self.end_headers()
class StreamingServer(socketserver.ThreadingMixIn, server.HTTPServer):
allow_reuse_address = True
daemon_threads = True
with picamera.PiCamera(resolution="640x480", framerate=24) as camera:
output = StreamingOutput()
# Uncomment the next line to change your Pi's Camera rotation (in degrees)
# camera.rotation = 90
camera.start_recording(output, format="mjpeg")
try:
address = ("", 8000)
server = StreamingServer(address, StreamingHandler)
server.serve_forever()
finally:
camera.stop_recording()