https://github.com/sivaraam/fft_chat

A Python chat application with Fast Fourier Transform used as intermediary format of conversion before transmission.
https://github.com/sivaraam/fft_chat

Last synced: 24 days ago
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A Python chat application with Fast Fourier Transform used as intermediary format of conversion before transmission.

• Host: GitHub
• URL: https://github.com/sivaraam/fft_chat
• Owner: sivaraam
• Created: 2019-03-03T15:53:56.000Z (almost 6 years ago)
• Default Branch: master
• Last Pushed: 2019-03-18T03:51:29.000Z (almost 6 years ago)
• Last Synced: 2024-12-30T05:32:50.477Z (27 days ago)
• Language: Python
• Size: 37.1 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
## FFT Chat

A GUI based chat room that applies uses FFT to encode/decode

messages sent by users. It is a client/server based application.

### Usage

* See if [Dependencies](#dependencies) have been installed.

* Start the server:

	`python3 server.py`

	By default, the server runs in port in port `33000`. Currently it can

	only be changed by editing the source of `server.py`.

	The `PORT` variable has to be changed.

* Start the client:

	`python3 client.py`

	The client asks for the `HOST` address and `PORT` to connect to. If

	both client and server run in the same machine, no need to enter

	the HOST. If server runs in port `33000` no need to enter it either.

* Then user can follow instructions in the GUI window that pops up.

### Dependencies

* `numpy` (for FFT)

* `tkinter` (for GUI)

#### Installing dependencies

* `numpy`

	```

	pip3 install numpy

	```

* `tkinter`

	For Ubuntu or Debian based distributions:

	```

	sudo apt install python3-tk

	```

	For other platforms refer to the [official Tk documentation](https://tkdocs.com/tutorial/install.html).

### Notes

* The maximum packet size is limited to `102400`. It's a limitation which has to be fixed. References:

	- [socket.recv -- three ways to turn it into recvall (Python recipe)](https://code.activestate.com/recipes/408859/)

	- [Python socket receive - incoming packets always have a different size](https://stackoverflow.com/q/1708835/5614968)

	- [Socket Programming HOWTO](https://docs.python.org/3/howto/sockets.html)

### References

* [Discrete Fourier Transform (numpy.fft)](https://docs.scipy.org/doc/numpy/reference/routines.fft.html)

* [Let’s Write a Chat App in Python](https://medium.com/swlh/lets-write-a-chat-app-in-python-f6783a9ac170)

* [Object serialization in Python](https://www.thepythoncorner.com/2016/12/object-serialization-in-python/?doing_wp_cron=1551636082.3169770240783691406250)

* [pickle — Python object serialization](https://docs.python.org/2/library/pickle.html)

* [socket — Low-level networking interface](https://docs.python.org/3/library/socket.html)