# tinyh264

**Repository Path**: gitesin/tinyh264

## Basic Information

- **Project Name**: tinyh264
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2025-09-30
- **Last Updated**: 2025-09-30

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Tiny H264

This project was forked from [h264bsd](https://github.com/oneam/h264bsd).

Available on npm as `tinyh264` and meant to be used with a builder system like webpack as [worker module](https://webpack.js.org/loaders/worker-loader/).
See `demo` folder for an example.

All non-essential operations like color conversions, querying cropping parameters or render to canvas have been removed.
All required decoding operations have been moved to C to optimize performance. 

Quick tests show an up to 50% performance improvement on chrome, and up to 20% on Firefox.

- Input is expected to be a picture of NALs (a complete access units or AU) as Uint8Array, the output result is a yuv420 buffer as Uint8Array.
- Profile must be constrained-baseline or baseline. 
- Only I and P frames are considered supported (so no B-frames).

This project was created for use in [Greenfield](https://github.com/udevbe/greenfield)

# Building
## Prerequisites
- Bash

Make sure you have sourced the emscripten environment and run `npm install && npm run build`.