⚠️ Deprecation NoticeThis project is no longer maintained as of 2026-04-17.
The dlb_mp4base repository has been deprecated and will remain available temporarily for reference. No further updates, bug fixes, or security patches will be provided. Developers are encouraged to migrate to actively maintained MP4 container libraries such as Bento4 or MP4Box (GPAC), which offer broader feature support and ongoing development.
The Dolby MP4 streaming muxer (dlb_mp4base) is a software implementation of a muxer of fragmented or unfragmented ISO base media file format (mp4). It supports muxing of Dolby Digital (AC-3), Dolby Digital Plus (E-AC-3), and Dolby AC-4 audio formats as well as Dolby Vision.
These instructions will help you get a copy of the project up and running on your local machine for development and testing purposes.
The "dlb_mp4base" folder consists of:
- README.md This file.
- doc/ Doxygen documentation of the dlb_mp4base.
- frontend/ MP4Muxer frontend with corresponding EMA interface as source code.
- include/ Necessary header files of the dlb_mp4base library.
- make/ Makefiles and Visual Studio projects/solutions for building the Dolby MP4 multiplexer library with frontends and test harnesses.
- src/ Contains the MP4 multiplexer source code.
- test/ Test harnesses for unit and developer system tests including test signals.
For Windows platform development, Visual Studio 2010 must be installed with SP1.
After cloning the dlb_mp4base repository to your local machine, go to the appropriate directory, depending on your machine OS and architecture, such as:
"cd dlb_mp4base/make/mp4muxer<architecture>"
Then build one of the following make targets:
"make mp4muxer_release"
"make mp4muxer_debug"
From a Visual Studio 2010 command line window:
Go to a directory of your choice
"cd dlb_mp4base\make\mp4muxer\mp4muxer<architecture>"
"devenv mp4muxer_2010.sln /rebuild debug/release"
See the Release Notes file for details
This project is licensed under the BSD-3 License - see the LICENSE file for details