pmomusic/pmoaudio/src/sync_marker.rs

use std::sync::Arc;
use tokio::sync::RwLock;

use pmometadata::TrackMetadata;

pub enum SyncMarker {
    TrackBoundary {
        metadata: Arc<RwLock<dyn TrackMetadata>>,
    },
    StreamMetadata {
        key: String,
        value: String,
    },
    TopZeroSync,
    Heartbeat,
    EndOfStream,
    Error(String),
    // autres cas à venir…
}