I have been trying to install PyGObject since long now. I have tried everything MSYS, [Chocolatey](https://docs.chocolatey.org/en-us/choco/setup), gtk-build (github) and Microsoft build tool. But keep throwing the same error. ``` Collecting PyGObject Downloading PyGObject-3.46.0.tar.gz (723 kB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 723.4/723.4 kB 7.9 MB/s eta 0:00:00 Installing build dependencies ... error error: subprocess-exited-with-error × pip subprocess to install build dependencies did not run successfully. │ exit code: 1 ╰─> [48 lines of output] Collecting setuptools Obtaining dependency information for setuptools from https://files.pythonhosted.org/packages/55/3a/5121b58b578a598b269537e09a316ad2a94fdd561a2c6eb75cd68578cc6b/setuptools-69.0.3-py3-none-any.whl.metadata Downloading setuptools-69.0.3-py3-none-any.whl.metadata (6.3 kB) Collecting wheel Obtaining dependency information for wheel from https://files.pythonhosted.org/packages/c7/c3/55076fc728723ef927521abaa1955213d094933dc36d4a2008d5101e1af5/wheel-0.42.0-py3-none-any.whl.metadata Downloading wheel-0.42.0-py3-none-any.whl.metadata (2.2 kB) Collecting pycairo Downloading pycairo-1.25.1.tar.gz (347 kB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 347.1/347.1 kB 5.3 MB/s eta 0:00:00 Installing build dependencies: started Installing build dependencies: finished with status 'done' Getting requirements to build wheel: started Getting requirements to build wheel: finished with status 'done' Installing backend dependencies: started Installing backend dependencies: finished with status 'done' Preparing metadata (pyproject.toml): started Preparing metadata (pyproject.toml): finished with status 'done' Using cached setuptools-69.0.3-py3-none-any.whl (819 kB) Using cached wheel-0.42.0-py3-none-any.whl (65 kB) Building wheels for collected packages: pycairo Building wheel for pycairo (pyproject.toml): started Building wheel for pycairo (pyproject.toml): finished with status 'error' error: subprocess-exited-with-error × Building wheel for pycairo (pyproject.toml) did not run successfully. │ exit code: 1 ╰─> [12 lines of output] running bdist_wheel running build running build_py creating build creating build/lib.msys-3.4.10.-x86_64-cpython-311 creating build/lib.msys-3.4.10.-x86_64-cpython-311/cairo copying cairo/__init__.py -> build/lib.msys-3.4.10.-x86_64-cpython-311/cairo copying cairo/__init__.pyi -> build/lib.msys-3.4.10.-x86_64-cpython-311/cairo copying cairo/py.typed -> build/lib.msys-3.4.10.-x86_64-cpython-311/cairo running build_ext 'pkg-config' not found. Command ['pkg-config', '--print-errors', '--exists', 'cairo >= 1.15.10'] [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. ERROR: Failed building wheel for pycairo Failed to build pycairo ERROR: Could not build wheels for pycairo, which is required to install pyproject.toml-based projects [notice] A new release of pip is available: 23.2.1 -> 24.0 [notice] To update, run: pip install --upgrade pip [end of output] note: This error originates from a subprocess, and is likely not a problem with pip. error: subprocess-exited-with-error × pip subprocess to install build dependencies did not run successfully. │ exit code: 1 ╰─> See above for output. ```

Hi @"nikul"#2109 Difficult to say what the issue is, especially running on WIN. I checked the pycairo and it looks like it only supports python 3.8+ - https://pypi.org/project/pycairo/. Are you perhaps running on python3.12? It's not explicitly stated on which python versions it works. Try looking online, this is not a depthai specific problem. Thanks, Jaka

Following code is running but not streaming not streaming on URL ``` import depthai as dai import time # Start defining a pipeline pipeline = dai.Pipeline() # Define a source - color camera cam = pipeline.create(dai.node.ColorCamera) cam.initialControl.setManualFocus(0) # 0..255 cam.setFps(60) cam.setResolution(dai.ColorCameraProperties.SensorResolution.THE_1080_P) # VideoEncoder jpeg = pipeline.create(dai.node.VideoEncoder) jpeg.setDefaultProfilePreset(cam.getFps(), dai.VideoEncoderProperties.Profile.H265_MAIN) # Script node script = pipeline.create(dai.node.Script) script.setProcessor(dai.ProcessorType.LEON_CSS) script.setScript(""" import time import socket import fcntl import struct from socketserver import ThreadingMixIn from http.server import BaseHTTPRequestHandler, HTTPServer PORT = 8080 def get_ip_address(ifname): s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) return socket.inet_ntoa(fcntl.ioctl( s.fileno(), -1071617759, # SIOCGIFADDR struct.pack('256s', ifname[:15].encode()) )[20:24]) class ThreadingSimpleServer(ThreadingMixIn, HTTPServer): pass class HTTPHandler(BaseHTTPRequestHandler): def do_GET(self): if self.path == '/': self.send_response(200) self.end_headers() self.wfile.write(b'[DepthAI] Hello, world!Click here for an image') elif self.path == '/img': try: self.send_response(200) self.send_header('Content-type', 'multipart/x-mixed-replace; boundary=--jpgboundary') self.end_headers() fpsCounter = 0 timeCounter = time.time() while True: jpegImage = node.io['jpeg'].get() self.wfile.write("--jpgboundary".encode()) self.wfile.write(bytes([13, 10])) self.send_header('Content-type', 'image/jpeg') self.send_header('Content-length', str(len(jpegImage.getData()))) self.end_headers() self.wfile.write(jpegImage.getData()) self.end_headers() fpsCounter = fpsCounter + 1 if time.time() - timeCounter > 1: node.warn(f'FPS: {fpsCounter}') fpsCounter = 0 timeCounter = time.time() except Exception as ex: node.warn(str(ex)) with ThreadingSimpleServer(("", PORT), HTTPHandler) as httpd: node.warn(f"Serving at {get_ip_address('re0')}:{PORT}") httpd.serve_forever() """) # Connections cam.video.link(jpeg.input) jpeg.bitstream.link(script.inputs['jpeg']) device_info = dai.DeviceInfo("0.0.0.0") with dai.Device(pipeline,device_info) as device: while True: pass # Keep the script running ``` [upl-image-preview url=https://discuss.luxonis.com/assets/files/2024-02-15/1708027168-666272-image.png] [URL=https://i.imgur.com/4mTNTB5.png][IMG]https://i.imgur.com/4mTNTB5h.png[/IMG][/URL] I dont know what the problem is

Hi @"nikul"#2109 Likely something wrong with the headers or data decoding. Also I'd lower the FPS to 10 for now. Thanks, Jaka

@"jakaskerl"#p17400 Thank you for getting back. I have lower down FPS to 10. And still not able to debug the code, Any help in this matter will be appreciated. Thank you.

Hi @"nikul"#2109 I'll have to debug this on monday since I don't have any poe device to test on currently. Thanks, Jaka

@"nikul"#2109 You are encoding into H265 (not MJPEG) - and in http response you are writing jpgboundary and in header you have specified `image/jpeg`. This will, of course, not work, and I don't think you can just stream raw h264 bitstream to a browser and it will decode/display it. You would likely need to containerize it (eg mp4), so html5's video player could play the stream. The `why` is that h264/h265 is much more complex than mjpeg. Thoughts? Thanks, Erik

@"erik"#p17438 Thank you. I got the RTSP streaming link however it is throwing error and i don't know how to debug this. [URL=https://i.imgur.com/KusJXlb.png][IMG]https://i.imgur.com/KusJXlb.png[/IMG][/URL] [URL=https://i.imgur.com/BVrAvYw.png][IMG]https://i.imgur.com/BVrAvYw.png[/IMG][/URL] Further, can I flash RTSP experiment/demo in to the device so it can stream it on stand alone. if yes how. Here is the link of experiment https://github.com/luxonis/depthai-experiments/tree/master/gen2-rtsp-streaming Would really appreciate you expertise in this matter. Thank you.

Hi @"nikul"#2109 , Here's step by step tutorial: 1. Install WLS 2 2. RUn commands ``` sudo apt-get update sudo apt-get upgrade sudo apt-get install ffmpeg gstreamer-1.0 gir1.2-gst-rtsp-server-1.0 libgirepository1.0-dev gstreamer1.0-plugins-bad gstreamer1.0-plugins-good gstreamer1.0-plugins-base ``` 3. Install python requirements ``` opencv-python numpy depthai==2.24 PyGObject ``` 4. I went with standalone approach, so flashing TCP server streaming H265 bitstream to clients that connect to it. You can run this flashing script from Windows (no need for WSL). Note that you need latest bootlaoder flashed on device before flashing this script to the OAK POE camera: ```python import depthai as dai # Start defining a pipeline pipeline = dai.Pipeline() camRgb = pipeline.createColorCamera() camRgb.setIspScale(2,3) videoEnc = pipeline.create(dai.node.VideoEncoder) videoEnc.setDefaultProfilePreset(30, dai.VideoEncoderProperties.Profile.H265_MAIN) camRgb.video.link(videoEnc.input) script = pipeline.create(dai.node.Script) script.setProcessor(dai.ProcessorType.LEON_CSS) videoEnc.bitstream.link(script.inputs['frame']) script.inputs['frame'].setBlocking(False) script.inputs['frame'].setQueueSize(1) script.setScript(""" import socket import time server = socket.socket(socket.AF_INET, socket.SOCK_STREAM) server.bind(("0.0.0.0", 5000)) server.listen() node.warn("Server up") while True: conn, client = server.accept() node.warn(f"Connected to client IP: {client}") try: while True: pck = node.io["frame"].get() data = pck.getData() ts = pck.getTimestamp() header = f"ABCDE " + str(ts.total_seconds()).ljust(18) + str(len(data)).ljust(8) # node.warn(f'>{header}

Also if you are going to use ffplay to read from RTSP server, please see flags below to get lowest latency (as my RTSP player has about 1sec latency): https://discuss.luxonis.com/d/3516-oak-1-poe-low-latency-streaming/4

@"erik"#p17590 Thank you very much for tutorial it clears lot of concepts for me, Its streaming : ) :[upl-image-preview url=https://discuss.luxonis.com/assets/files/2024-02-21/1708539746-676433-image.png] I am getting following error in the terminal sometimes. Error: negative buffersize in recv I have one more question Is it possible to flash everything into the device in way that it connects to the TCP server running on the camera, receives the H265 encoded video frames, and then streams them via an RTSP server. With host as device itself. for instance: rtsp:://192.168.0.102:8554/preview (Considering sample OAK_IP you have mention in tutorial)

Error installing PyGObject in window for running RTSP streaming.

nikul

erik
Thank you for getting back.
Will let you know whatever we make decision .

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