If you are struggling to play a specific file, your first port of call should always be the Decoder settings within the app. Toggle your hardware acceleration and see if that resolves the conflict before diving into the complex world of manual codec installation.
: If you see a warning that the "external codec has been updated," it means your current libffmpeg file is too old for the latest nPlayer update. You must download the newer version to match the app's requirements. nplayer external codec
After configuring your , test with a known problematic file. I recommend a 1080p MKV file with DTS-HD Master Audio or an MKV with Dolby TrueHD . Before the external codec, you should hear silence. After activation, the sound should play clearly (downmixed to stereo, unless you have a multi-channel receiver via HDMI-out). If you are struggling to play a specific