├── requirements.txt ├── README.md ├── LICENSE ├── udp_server.py ├── udp_client.py └── .gitignore /requirements.txt: -------------------------------------------------------------------------------- 1 | astroid==2.3.3 2 | colorama==0.4.3 3 | isort==4.3.21 4 | lazy-object-proxy==1.4.3 5 | mccabe==0.6.1 6 | numpy==1.18.2 7 | opencv-contrib-python==4.2.0.32 8 | pylint==2.4.4 9 | six==1.14.0 10 | wrapt==1.11.2 11 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # udp-video-streaming 2 | Stream video from one computer to another using OpenCV and UDP sockets in Python. 3 | 4 | # how to use 5 | 1. Set the ```host``` variable in ```server.py``` to the IP address of the computer running the client program. 6 | 2. Run ```> python3 udp_client.py``` 7 | 3. Run ```> python3 udp_server.py``` 8 | 9 | Once the server starts, a window will pop up to show the video stream. 10 | 11 | # how it works 12 | OpenCV is used to grab a frame from a webcam. The frame is encoded as a jpeg to reduce its size. The encoded frame is sent to the Raspberry Pi over UDP sockets. The Client program on the Raspberry Pi receives the frame, decides it and shows it in an OpenCV window. The process is repeated to create a video stream. 13 | 14 | # credits 15 | Credits to GitHub user [chenxiaoqino](https://github.com/chenxiaoqino) as this project was inspired by their CPP version. 16 | https://github.com/chenxiaoqino/udp-image-streaming/ 17 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2020 Sheriff Olaoye 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /udp_server.py: -------------------------------------------------------------------------------- 1 | import cv2 2 | import socket 3 | import pickle 4 | import numpy as np 5 | 6 | host = "0.0.0.0" 7 | port = 5000 8 | max_length = 65540 9 | 10 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 11 | sock.bind((host, port)) 12 | 13 | frame_info = None 14 | buffer = None 15 | frame = None 16 | 17 | print("-> waiting for connection") 18 | 19 | while True: 20 | data, address = sock.recvfrom(max_length) 21 | 22 | if len(data) < 100: 23 | frame_info = pickle.loads(data) 24 | 25 | if frame_info: 26 | nums_of_packs = frame_info["packs"] 27 | 28 | for i in range(nums_of_packs): 29 | data, address = sock.recvfrom(max_length) 30 | 31 | if i == 0: 32 | buffer = data 33 | else: 34 | buffer += data 35 | 36 | frame = np.frombuffer(buffer, dtype=np.uint8) 37 | frame = frame.reshape(frame.shape[0], 1) 38 | 39 | frame = cv2.imdecode(frame, cv2.IMREAD_COLOR) 40 | frame = cv2.flip(frame, 1) 41 | 42 | if frame is not None and type(frame) == np.ndarray: 43 | cv2.imshow("Stream", frame) 44 | if cv2.waitKey(1) == 27: 45 | break 46 | 47 | print("goodbye") -------------------------------------------------------------------------------- /udp_client.py: -------------------------------------------------------------------------------- 1 | import cv2 2 | import socket 3 | import math 4 | import pickle 5 | import sys 6 | 7 | max_length = 65000 8 | host = sys.argv[1] 9 | port = 5000 10 | 11 | sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) 12 | 13 | cap = cv2.VideoCapture(0) 14 | ret, frame = cap.read() 15 | 16 | while ret: 17 | # compress frame 18 | retval, buffer = cv2.imencode(".jpg", frame) 19 | 20 | if retval: 21 | # convert to byte array 22 | buffer = buffer.tobytes() 23 | # get size of the frame 24 | buffer_size = len(buffer) 25 | 26 | num_of_packs = 1 27 | if buffer_size > max_length: 28 | num_of_packs = math.ceil(buffer_size/max_length) 29 | 30 | frame_info = {"packs":num_of_packs} 31 | 32 | # send the number of packs to be expected 33 | print("Number of packs:", num_of_packs) 34 | sock.sendto(pickle.dumps(frame_info), (host, port)) 35 | 36 | left = 0 37 | right = max_length 38 | 39 | for i in range(num_of_packs): 40 | print("left:", left) 41 | print("right:", right) 42 | 43 | # truncate data to send 44 | data = buffer[left:right] 45 | left = right 46 | right += max_length 47 | 48 | # send the frames accordingly 49 | sock.sendto(data, (host, port)) 50 | 51 | ret, frame = cap.read() 52 | 53 | print("done") 54 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Byte-compiled / optimized / DLL files 2 | __pycache__/ 3 | *.py[cod] 4 | *$py.class 5 | 6 | # C extensions 7 | *.so 8 | 9 | # Distribution / packaging 10 | .Python 11 | build/ 12 | develop-eggs/ 13 | dist/ 14 | downloads/ 15 | eggs/ 16 | .eggs/ 17 | lib/ 18 | lib64/ 19 | parts/ 20 | sdist/ 21 | var/ 22 | wheels/ 23 | pip-wheel-metadata/ 24 | share/python-wheels/ 25 | *.egg-info/ 26 | .installed.cfg 27 | *.egg 28 | MANIFEST 29 | 30 | # PyInstaller 31 | # Usually these files are written by a python script from a template 32 | # before PyInstaller builds the exe, so as to inject date/other infos into it. 33 | *.manifest 34 | *.spec 35 | 36 | # Installer logs 37 | pip-log.txt 38 | pip-delete-this-directory.txt 39 | 40 | # Unit test / coverage reports 41 | htmlcov/ 42 | .tox/ 43 | .nox/ 44 | .coverage 45 | .coverage.* 46 | .cache 47 | nosetests.xml 48 | coverage.xml 49 | *.cover 50 | *.py,cover 51 | .hypothesis/ 52 | .pytest_cache/ 53 | 54 | # Translations 55 | *.mo 56 | *.pot 57 | 58 | # Django stuff: 59 | *.log 60 | local_settings.py 61 | db.sqlite3 62 | db.sqlite3-journal 63 | 64 | # Flask stuff: 65 | instance/ 66 | .webassets-cache 67 | 68 | # Scrapy stuff: 69 | .scrapy 70 | 71 | # Sphinx documentation 72 | docs/_build/ 73 | 74 | # PyBuilder 75 | target/ 76 | 77 | # Jupyter Notebook 78 | .ipynb_checkpoints 79 | 80 | # IPython 81 | profile_default/ 82 | ipython_config.py 83 | 84 | # pyenv 85 | .python-version 86 | 87 | # pipenv 88 | # According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control. 89 | # However, in case of collaboration, if having platform-specific dependencies or dependencies 90 | # having no cross-platform support, pipenv may install dependencies that don't work, or not 91 | # install all needed dependencies. 92 | #Pipfile.lock 93 | 94 | # PEP 582; used by e.g. github.com/David-OConnor/pyflow 95 | __pypackages__/ 96 | 97 | # Celery stuff 98 | celerybeat-schedule 99 | celerybeat.pid 100 | 101 | # SageMath parsed files 102 | *.sage.py 103 | 104 | # Environments 105 | .env 106 | .venv 107 | env/ 108 | venv/ 109 | ENV/ 110 | env.bak/ 111 | venv.bak/ 112 | 113 | # Spyder project settings 114 | .spyderproject 115 | .spyproject 116 | 117 | # Rope project settings 118 | .ropeproject 119 | 120 | # mkdocs documentation 121 | /site 122 | 123 | # mypy 124 | .mypy_cache/ 125 | .dmypy.json 126 | dmypy.json 127 | 128 | # Pyre type checker 129 | .pyre/ 130 | --------------------------------------------------------------------------------