This issue happens because of licensing restrictions. MX Player had to remove built-in support for popular audio formats like DTS, DTS-HD, AC3, and EAC3.

If you want, I can:

: If you prefer a smaller file, look for mx_neon64.zip .

I can point you to the precise codec package you need for your device. Share public link

Consider an H.264 baseline decoder copying an 8x8 luma block. Without NEON, you might write:

This paper presents the design, implementation, and performance evaluation of an ARMv8 NEON-optimized codec for the MX Player 1130 media pipeline. We describe codec algorithm selection, NEON vectorization strategies, memory layout and alignment, multithreading and synchronization for big.LITTLE systems, power and thermal considerations, fallback compatibility, and benchmarking methodology. Results show latency and throughput improvements, CPU utilization changes, and energy trade-offs compared with a scalar baseline.

Note: If MX Player is already showing an error, it will often provide a direct prompt to download or install the correct codec. Alternative Solutions (If Codec Fails)

Maximizing Performance: MX Player 1.13.0 ARMv8 NEON Codec Guide

“ARMv8 NEON” together means you are using the 64-bit instruction set with advanced multimedia acceleration.