latest nPlayer external codec support - cpp-labs/ffmpeg - GitHub
nPlayer is widely regarded as one of the best media players for mobile devices, offering powerful streaming capabilities and support for nearly any video format. However, users occasionally encounter audio issues—specifically with or Dolby (AC3/E-AC3) tracks—where the app may display an error message stating that the format is not supported.
Do you have a specific codec that still won't play? Convert the file using Handbrake (to H.264/AAC) before transferring it to your device.