Starting with version 1.7.32, MX Player was forced to remove native support for certain audio formats like AC3, EAC3 (Dolby Digital Plus), DTS, and MLP due to licensing restrictions. If you try to play a video containing one of these audio tracks, you'll likely see video with no sound, or an error message.
Here is the complete guide to downloading, installing, and making the 1.49.0 ARMv8 Neon codec work in 2026. 🚀 Quick Fix: Download & Install Codec 1.49.0
If the app doesn't automatically find the file, use the Manual Navigation method described in Step 2.
This comprehensive guide explains why this error happens, outlines the role of ARMv8 NEON architecture, and provides a clear workflow to safely install the codec pack. Why MX Player Needs a Custom Codec
You cannot find these codecs on the Google Play Store. You must download them from a trusted source like GitHub or XDA Developers.
If you have installed the codec but still don't hear sound, check these settings:
You need the specific libffmpeg.mx.so.neon64.149.0 file or the all-in-one AIO ZIP pack that matches version 149.0. Ensure you download this from verified open-source repositories like GitHub (XDA developers' trusted mirrors). Save the file directly to your Android device’s internal download folder. Step 2: Open MX Player Decoder Settings Launch . Tap the Settings Gear or menu icon. Select Decoder . Scroll completely down to the bottom of the list. Tap on Custom Codec . Step 3: Load the Codec
The solution is a : an external, modified FFmpeg library file you can add to MX Player to restore playback for these unsupported formats. You need to manually match the codec to your device's processor architecture (like "ARMv8 NEON") and MX Player version (like "1.49.0").
You may wonder: "If AC3 and DTS are so common, why doesn't MX Player include them?"
MX Player removed several audio codecs (like DTS, DTS-HD, AC3, and EAC3) from its official builds due to licensing restrictions.
– Best feature pack Search for: “MX Player Custom Codec [AC3/DTS] ARMv8 NEON” Look for builds by ktsamy or USBhost – they support DTS, EAC3, TrueHD.