MetadataRetriever (ExoPlayer library)

java.lang.Object
- com.google.android.exoplayer2.MetadataRetriever

public final class MetadataRetriever
extends Object

Retrieves the static metadata of MediaItems.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static ListenableFuture<TrackGroupArray>`	`retrieveMetadata(Context context, MediaItem mediaItem)`	Retrieves the `TrackGroupArray` corresponding to a `MediaItem`.
`static ListenableFuture<TrackGroupArray>`	`retrieveMetadata(MediaSource.Factory mediaSourceFactory, MediaItem mediaItem)`	Retrieves the `TrackGroupArray` corresponding to a `MediaItem`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - retrieveMetadata
```
public static ListenableFuture<TrackGroupArray> retrieveMetadata(Context context,
                                                                 MediaItem mediaItem)
```
    Retrieves the TrackGroupArray corresponding to a MediaItem.
    This is equivalent to using retrieveMetadata(MediaSource.Factory, MediaItem) with a DefaultMediaSourceFactory and a DefaultExtractorsFactory with Mp4Extractor.FLAG_READ_MOTION_PHOTO_METADATA and Mp4Extractor.FLAG_READ_SEF_DATA set.
    
    Parameters:
    
    context - The Context.
    
    mediaItem - The MediaItem whose metadata should be retrieved.
    
    Returns:
    
    A ListenableFuture of the result.
  - retrieveMetadata
```
public static ListenableFuture<TrackGroupArray> retrieveMetadata(MediaSource.Factory mediaSourceFactory,
                                                                 MediaItem mediaItem)
```
    Retrieves the TrackGroupArray corresponding to a MediaItem.
    This method is thread-safe.
    
    Parameters:
    
    mediaSourceFactory - mediaSourceFactory The MediaSource.Factory to use to read the data.
    
    mediaItem - The MediaItem whose metadata should be retrieved.
    
    Returns:
    
    A ListenableFuture of the result.