2021-04-03 22:41:40 +00:00
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# Web streaming example
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# Source code from the official PiCamera package
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# http://picamera.readthedocs.io/en/latest/recipes2.html#web-streaming
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import io
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import picamera
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import logging
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import socketserver
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from threading import Condition
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from http import server
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PAGE="""\
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<html>
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<head>
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<title>Raspberry Pi - Remote Camera</title>
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</head>
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<body>
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<center><h1>Raspberry Pi - Remote Camera</h1></center>
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<center><img src="stream.mjpg" width="1080" height="720"></center>
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</body>
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</html>
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"""
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class StreamingOutput(object):
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def __init__(self):
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self.frame = None
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self.buffer = io.BytesIO()
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self.condition = Condition()
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def write(self, buf):
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if buf.startswith(b'\xff\xd8'):
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# New frame, copy the existing buffer's content and notify all
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# clients it's available
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self.buffer.truncate()
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with self.condition:
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self.frame = self.buffer.getvalue()
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self.condition.notify_all()
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self.buffer.seek(0)
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return self.buffer.write(buf)
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class StreamingHandler(server.BaseHTTPRequestHandler):
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def do_GET(self):
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if self.path == '/':
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self.send_response(301)
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self.send_header('Location', '/index.html')
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self.end_headers()
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elif self.path == '/index.html':
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content = PAGE.encode('utf-8')
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self.send_response(200)
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self.send_header('Content-Type', 'text/html')
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self.send_header('Content-Length', len(content))
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self.end_headers()
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self.wfile.write(content)
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elif self.path == '/stream.mjpg':
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self.send_response(200)
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self.send_header('Age', 0)
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self.send_header('Cache-Control', 'no-cache, private')
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self.send_header('Pragma', 'no-cache')
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self.send_header('Content-Type', 'multipart/x-mixed-replace; boundary=FRAME')
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self.end_headers()
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try:
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while True:
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with output.condition:
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output.condition.wait()
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frame = output.frame
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self.wfile.write(b'--FRAME\r\n')
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self.send_header('Content-Type', 'image/jpeg')
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self.send_header('Content-Length', len(frame))
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self.end_headers()
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self.wfile.write(frame)
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self.wfile.write(b'\r\n')
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except Exception as e:
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logging.warning(
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'Removed streaming client %s: %s',
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self.client_address, str(e))
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else:
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self.send_error(404)
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self.end_headers()
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class StreamingServer(socketserver.ThreadingMixIn, server.HTTPServer):
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allow_reuse_address = True
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daemon_threads = True
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with picamera.PiCamera(resolution='1080x720', framerate=24) as camera:
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output = StreamingOutput()
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#Uncomment the next line to change your Pi's Camera rotation (in degrees)
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camera.rotation = 90
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camera.start_recording(output, format='mjpeg')
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try:
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address = ('', 8000)
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server = StreamingServer(address, StreamingHandler)
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server.serve_forever()
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finally:
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2021-04-04 03:08:57 +00:00
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camera.stop_recording()
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