Developers on GitHub and XDA Forums release updated versions of MX Player that have the custom codecs built directly into the APK file.
MX Player is widely considered the best media player for Android, but due to licensing restrictions, it does not include support for several high-end audio formats by default. Without a custom codec, you cannot play videos with the following audio tracks: DTS / DTS-HD AC3 MLP and TrueHD
Enhanced support for HW+ decoder on Android 12, 13, and 14.