https://github.com/kevmo314/codec-from-scratch

Build a simple video encoder from scratch
https://github.com/kevmo314/codec-from-scratch

codec go golang tutorial video

Last synced: 17 days ago
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Build a simple video encoder from scratch

• Host: GitHub
• URL: https://github.com/kevmo314/codec-from-scratch
• Owner: kevmo314
• License: apache-2.0
• Created: 2022-11-23T19:00:20.000Z (almost 2 years ago)
• Default Branch: main
• Last Pushed: 2023-04-07T05:32:58.000Z (over 1 year ago)
• Last Synced: 2024-08-03T09:03:53.527Z (4 months ago)
• Topics: codec, go, golang, tutorial, video
• Language: Go
• Homepage:
• Size: 28.7 MB
• Stars: 285
• Watchers: 5
• Forks: 11
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Video Encoding from Scratch

**Big fan of video? Have questions or want to learn more? Join us on [Discord](https://discord.gg/dVshPbrggM)!**

Ever wondered how a video encoder works? This is a simple video encoder

that walks through building a video encoder from scratch to achieve a 90% compression ratio!

https://user-images.githubusercontent.com/511342/203627486-611066cd-f8e5-48c1-863b-eab9529ff90d.mp4

Start by opening up `main.go`. You can run the code by running

`cat video.rgb24 | go run main.go` and you should see this as output

```sh

$ cat video.rgb24 | go run main.go

2022/11/23 13:54:03 Raw size: 53996544 bytes

2022/11/23 13:54:03 YUV420P size: 26998272 bytes (50.00% original size)

2022/11/23 13:54:03 RLE size: 13592946 bytes (25.17% original size)

2022/11/23 13:54:15 DEFLATE size: 5457415 bytes (10.11% original size)

```

The actual encoding is done in about 120 lines of code. This is meant

to be a didactic exercise rather than a comprehensive guide, but maybe

if there's interest we could add more features that appear in modern video

codecs.

Sample video from [Ketut Subiyanto](https://www.pexels.com/video/a-little-girl-preparing-a-scramble-egg-meal-4823190/).

## Other languages

* Rust: https://github.com/Carel155/codec-from-scratch-rust