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wtf is bitstream?

andrewiggins/bitstream — explained in plain English

Analysis updated 2026-07-18 · repo last pushed 2011-03-05

JavaAudience · developerComplexity · 2/5DormantSetup · easy

TL;DR

Bitstream is a small Java class that lets you read and write data one bit at a time instead of a full byte, useful for bit-packed formats and protocols.

Mindmap

mindmap
  root((bitstream))
    What it does
      Bit level reading
      Bit level writing
      Wraps Java streams
    Tech Stack
      Java
    Use Cases
      Custom binary protocols
      Compressed game assets
      Bit flag formats
    Audience
      Network engineers
      Game developers

Code map

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filefunction / class

Why would anyone build with this?

REASON 1

Parse a custom binary network protocol that packs multiple values into a few bits each.

REASON 2

Read compressed game assets that store data at the bit level instead of the byte level.

REASON 3

Handle legacy file formats that use bit flags or bit-packed structures without manual shifting and masking.

What's in the stack?

Java

How it stacks up

andrewiggins/bitstreamabhishek-kumar09/pmdahus1/cdt
LanguageJavaJavaJava
Last pushed2011-03-052020-11-152024-11-05
MaintenanceDormantDormantStale
Setup difficultyeasymoderatemoderate
Complexity2/53/53/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you spin it up?

Difficulty · easy Time to first run · 5min
License is not stated in the available content.

Yoink these prompts

Prompt 1
Show me how to use this Bitstream class to read individual bits from a Java InputStream.
Prompt 2
Help me write a single bit flag to an output stream using Bitstream.
Prompt 3
Explain how Bitstream tracks which bit it's on within the current byte.
Prompt 4
Walk me through parsing a bit-packed binary protocol using this Bitstream class.

Frequently asked questions

wtf is bitstream?

Bitstream is a small Java class that lets you read and write data one bit at a time instead of a full byte, useful for bit-packed formats and protocols.

What language is bitstream written in?

Mainly Java. The stack also includes Java.

Is bitstream actively maintained?

Dormant — no commits in 2+ years (last push 2011-03-05).

What license does bitstream use?

License is not stated in the available content.

How hard is bitstream to set up?

Setup difficulty is rated easy, with roughly 5min to a first successful run.

Who is bitstream for?

Mainly developer.

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