Kmp External Codec Libvlcjni.so ★

Enable verbose logging:

// shared logic fun playExternalCodecFile(player: PlatformMediaPlayer) player.setDataSource("content://com.example/external_codec_sample.mkv") player.play()

On Android, the libvlcjni.so ‑backed player will output audio correctly, whereas ExoPlayer would fail with No decoder for: audio/ac3 . libvlcjni.so provides KMP developers with a powerful, unified way to handle external codecs that are absent from platform decoders. By wrapping VLC’s engine in a KMP expect/actual pattern, you can achieve cross-platform playback with near‑identical behavior and extensive format support. kmp external codec libvlcjni.so

libvlcjni.so loads decoders like libavcodec.so internally – external codecs work immediately. 3.3 iOS / Darwin Target iOS uses MobileVLCKit (Objective-C framework) which also bundles FFmpeg. A Kotlin/Native interop can be created, or use cinterop to call VLCKit, achieving identical external codec support. 4. Verifying External Codec Activation To confirm that libvlcjni.so is using its own decoders and not Android’s MediaCodec:

actual fun play() mediaPlayer.play() actual fun stop() mediaPlayer.stop() actual fun isPlaying(): Boolean = mediaPlayer.isPlaying libvlcjni

Step 1: Add dependency in build.gradle.kts (Android target):

Actual implementation:

The engine, via libvlcjni.so – its Android JNI bridge – provides a solution by bundling ffmpeg with hundreds of built-in external codecs, decoupled from the OS.