Tap the (three lines or dots) and go to Settings . Navigate to Decoder and scroll to the very bottom.
Before downloading anything, you must determine which codec version your specific device and MX Player version need. Open . mx player custom codec eac3 extra quality
Look for the tab. It will display exactly which version you need (e.g., ARMv8 NEON , x86 , neon64 , or neon ). Step 2: Download the Custom Codec Pack Tap the (three lines or dots) and go to Settings