Created
March 16, 2021 08:10
-
-
Save idriszmy/7c2f57a8111cd0ce95b0a39556574230 to your computer and use it in GitHub Desktop.
Blynk Video Streaming Using Raspberry Pi Camera
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| # Web streaming example | |
| # Source code from the official PiCamera package | |
| # http://picamera.readthedocs.io/en/latest/recipes2.html#web-streaming | |
| import io | |
| import picamera | |
| import logging | |
| import socketserver | |
| from threading import Condition | |
| from http import server | |
| PAGE="""\ | |
| <html> | |
| <head> | |
| <title>Raspberry Pi - Surveillance Camera</title> | |
| </head> | |
| <body> | |
| <center><h1>Raspberry Pi - Surveillance Camera</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() |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment