Kmp External Codec Libvlcjni.so | ESSENTIAL |

To confirm that libvlcjni.so is using its own decoders and not Android’s MediaCodec:

The "kmp external codec libvlcjni.so" error seems to relate to a problem with decoding certain types of media files. The libvlcjni.so file is a part of the VLC media player’s codec library, which some media players utilize for enhanced codec support. kmp external codec libvlcjni.so

While you can compile libvlc from source (a daunting task), it is much easier to use the official VLC Android SDK. To confirm that libvlcjni

Enable verbose logging:

: You can use video conversion tools to change the audio track to a more standard format like AAC or MP3, which KMPlayer can play without external help. Download KMPlayer Custom Codec kmp external codec libvlcjni.so

Understanding the KMP External Codec: libvlcjni.so for Android