h26forge ☆

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Description:
Tool for making syntactically valid but semantically spec-noncompliant videos

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Security

Tags: video h264 security fuzzing testing multimedia

Install: brew install h26forge

About:
H26forge is a specialized tool designed to generate H.264 video bitstreams that are syntactically valid according to the specification but intentionally violate semantic rules. It enables security researchers to test video codec implementations for vulnerabilities and developers to assess the robustness of media parsers against malformed inputs.

Key Features:

Generates spec-noncompliant H.264 bitstreams
Comprehensive syntax validation
Security testing and fuzzing capabilities
Supports complex NAL unit manipulation

Use Cases:

Fuzz testing video decoders and media players
Identifying security vulnerabilities in codec implementations
Validating robustness of video processing pipelines

Alternatives:

FFmpeg – FFmpeg creates compliant videos for production, while H26forge specializes in non-compliant streams for testing
videofuzz – Alternative fuzzing tool with different mutation strategies and coverage

Version History

Detected	Version	Rev	Change	Commit
Sep 12, 2025 3:02pm		0	VERSION_BUMP	be45a965
Sep 13, 2024 4:14pm		0	VERSION_BUMP	0c47459e