Codec
Codec provides custom codecs for MX Player, with the project page pointing users to its codec download site.

About Codec
Codec is a GitHub repository centered on an MX Player custom codec. It points users to a codec download site and to an MX-FFmpeg repository, and it includes instructions for building FFmpeg libraries with the Android NDK. The README states that the source is not the repository owner's and includes a PSA that Amazon is not updating the source anymore, advising users to stay on the old version or have nothing. It also recommends mpv-android as a video player alternative.
Key features
- Builds all FFmpeg libraries via rebuild-ffmpeg.sh after setting an NDK path.
- Builds an individual FFmpeg library per architecture via build-ffmpeg.sh.
- Points to a codec download site for MX Player custom codecs.
- References an XDA thread covering MX Player custom codec DTS support.
- Suggests mpv-android as a video player alternative.
Best for: Android users seeking MX Player custom codecs and developers who need scripts to build FFmpeg libraries.
Good for
- Includes build scripts for all or individual FFmpeg libraries.
- Provides a link to a dedicated codec download site.
- References an XDA thread for further discussion.
Watch out for
- README states Amazon is not updating the source anymore.
- README advises staying on the old version or having nothing.
- Repository description says the source is not the repository owner's.
Codec at a glance
- Website
- github.com/USBhost/MX_FFmpeg
- Category
- Mobile Apps › Android Apps
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Android
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Codec FAQ
How do I build the FFmpeg libraries?
Change to ffmpeg/JNI, edit ENV with your NDK location, then run rebuild-ffmpeg.sh for all libraries or build-ffmpeg.sh {architecture name} for an individual library.
Is the codec source still updated?
The README PSA says Amazon is not updating the source anymore, so users should stay on the old version or have nothing.
What video player alternative is recommended?
The README recommends mpv-android and links to its GitHub releases.
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