media3-midi-playback

name	media3-midi-playback
description	Compact skill for Media3 MIDI playback with dependency checks, decoder/runtime caveats, and Android playback integration.
license	Apache-2.0
metadata	{"author":"Shunnek Labs","version":"1.1","target_media3_version":"1.10.1","last_reviewed":"2026-07-23","keywords":["android","media3","midi","audio","exoplayer","decoder"]}

Trigger

Use when an app must play MIDI files or add media3-exoplayer-midi.

Rules

• Start with media3-audio-playback for audio focus, attributes, session, and noisy-device behavior.
• Pin Media3 to 1.10.1 through the version catalog.
• media3-exoplayer-midi depends on JSyn, which is published on JitPack. The project MUST add the https://jitpack.io Maven repository or dependency resolution fails.
• Read the current Media3 MIDI decoder notes before implementation; MIDI has extra dependency/runtime requirements. See https://github.com/androidx/media/blob/release/libraries/decoder_midi/README.md.
• Keep MIDI playback in Android source sets; expose playlist/state upward as KMP-safe data.
• Validate file source, duration, seeking behavior, and device support before promising parity with audio files.
• Treat MIDI as generated playback, not as ordinary decoded MP3/AAC content.

Example

media3-exoplayer = { module = "androidx.media3:media3-exoplayer", version.ref = "media3" }
media3-exoplayer-midi = { module = "androidx.media3:media3-exoplayer-midi", version.ref = "media3" }

// settings.gradle.kts
dependencyResolutionManagement {
    repositories {
        maven(url = "https://jitpack.io")
    }
}

player.setMediaItem(MediaItem.fromUri(midiUri))
player.prepare()

Do Not

• Do not skip the upstream MIDI README/dependency check.
• Do not assume MIDI supports every audio feature used by streamed media.
• Do not put MIDI-specific fallback logic in UI code.

Related

• media3-audio-playback
• media3-background-playback-service
• media3-analytics-telemetry