mp4ff

Project Overview

mp4ff is a Go module that implements MP4 media file parsing and writing for AVC and HEVC video, AAC and AC-3 audio, stpp and wvtt subtitles, and timed metadata tracks. It is focused on fragmented files as used for streaming in MPEG-DASH, MSS and HLS fMP4, but can also decode and encode all boxes needed for progressive MP4 files.

Key Features

• mp4ff-info: Prints a tree of the box hierarchy with information about the boxes
• mp4ff-pslister: Extracts and displays SPS and PPS for AVC or HEVC
• mp4ff-nallister: Lists NALUs and picture types
• mp4ff-subslister: Lists details of wvtt or stpp subtitle samples
• mp4ff-crop: Crops a progressive mp4 file to a specified duration
• mp4ff-encrypt: Encrypts a fragmented file using cenc or cbcs Common Encryption
• mp4ff-decrypt: Decrypts a fragmented file encrypted using cenc or cbcs
• mp4ff-mvhevc: Inspects MV-HEVC files and muxes HEVC into an MV-HEVC mp4

Target Audience

• Video streaming developers
• Engineers working with fragmented MP4 files
• Go developers

Quick Start

1. macOS/Linux via Homebrew: brew install mp4ff
2. Or via Go: go install github.com/Eyevinn/mp4ff/cmd/mp4ff-info@latest
3. Use mp4ff-info to view MP4 file information

Core Advantages

• Focused on fragmented MP4 file processing
• Rich set of command-line tools
• Cross-platform (macOS, Linux, Windows, amd64 and arm64)
• Open-source and free (MIT)

System Requirements

• OS: macOS, Linux, Windows
• Architectures: amd64, arm64