Merge pull request #2235 from MGaetan89:add_CastPlayer_playlistMetadata

PiperOrigin-RevId: 738455260
(cherry picked from commit 2d1bcc77be3acd0a8297220f7564483c12db32b3)

RELEASENOTES.md

@@ -1,5 +1,83 @@
 # Release notes
 
+*   Cast extension:
+    *   Add support for playlist metadata
+        ([#2235](https://github.com/androidx/media/pull/2235)).
+
+### Unreleased changes
+
+*   Common Library:
+*   ExoPlayer:
+*   Transformer:
+*   Track Selection:
+*   Extractors:
+    *   MP3: Use duration and data size from unseekable Xing, VBRI and similar
+        variable bitrate metadata when falling back to constant bitrate seeking
+        due to `FLAG_ENABLE_CONSTANT_BITRATE_SEEKING(_ALWAYS)`
+        ([#2194](https://github.com/androidx/media/issues/2194)).
+*   DataSource:
+*   Audio:
+    *   Allow constant power upmixing/downmixing in DefaultAudioMixer.
+*   Video:
+    *   Add experimental `ExoPlayer` API to include the
+        `MediaCodec.BUFFER_FLAG_DECODE_ONLY` flag when queuing decode-only input
+        buffers. This flag will signal the decoder to skip the decode-only
+        buffers thereby resulting in faster seeking. Enable it with
+        `DefaultRenderersFactory.experimentalSetEnableMediaCodecBufferDecodeOnlyFlag`.
+*   Text:
+*   Metadata:
+*   Image:
+*   DataSource:
+*   DRM:
+*   Effect:
+    *   Add `Presentation.createForShortSide(int)` that creates a `Presentation`
+        that ensures the shortest side always matches the given value,
+        regardless of input orientation.
+*   Muxers:
+    *   `writeSampleData()` API now uses muxer specific `BufferInfo` class
+        instead of `MediaCodec.BufferInfo`.
+*   IMA extension:
+*   Session:
+*   UI:
+*   Downloads:
+    *   Add partial download support for progressive streams. Apps can prepare a
+        progressive stream with `DownloadHelper`, and request a
+        `DownloadRequest` from the helper with specifying the time-based media
+        start and end positions that the download should cover. The returned
+        `DownloadRequest` carries the resolved byte range, with which a
+        `ProgressiveDownloader` can be created and download the content
+        correspondingly.
+*   OkHttp extension:
+*   Cronet extension:
+*   RTMP extension:
+*   HLS extension:
+*   DASH extension:
+*   Smooth Streaming extension:
+*   RTSP extension:
+*   Decoder extensions (FFmpeg, VP9, AV1, etc.):
+*   MIDI extension:
+*   Leanback extension:
+*   Cast extension:
+*   Test Utilities:
+*   Demo app:
+    *   Add `PlaybackSpeedPopUpButton` Composable UI element to be part of
+        `ExtraControls` in `demo-compose`.
+*   Remove deprecated symbols:
+    *   Removed deprecated `SegmentDownloader` constructor
+        `SegmentDownloader(MediaItem, Parser<M>, CacheDataSource.Factory,
+        Executor)` and the corresponding constructors in its subclasses
+        `DashDownloader`, `HlsDownloader` and `SsDownloader`.
+    *   Removed deprecated `Player.hasNext()`, `Player.hasNextWindow()`. Use
+        `Player.hasNextMediaItem()` instead.
+    *   Removed deprecated `Player.next()`. Use `Player.seekToNextMediaItem()`
+        instead.
+    *   Removed deprecated `Player.seekToPreviousWindow()`. Use
+        `Player.seekToPreviousMediaItem()` instead.
+    *   Removed deprecated `Player.seekToNextWindow()`. Use
+        `Player.seekToNextMediaItem()` instead.
+    *   Removed deprecated `BaseAudioProcessor` in `exoplayer` module. Use
+        `BaseAudioProcessor` under `common` module.
+
 ## 1.6
 
 ### 1.6.0 (2025-03-26)

libraries/cast/src/main/java/androidx/media3/cast/CastPlayer.java

@@ -16,6 +16,7 @@
 package androidx.media3.cast;
 
 import static androidx.media3.common.util.Assertions.checkArgument;
+import static androidx.media3.common.util.Assertions.checkNotNull;
 import static androidx.media3.common.util.Util.SDK_INT;
 import static androidx.media3.common.util.Util.castNonNull;
 import static java.lang.Math.min;
@@ -166,6 +167,7 @@ public final class CastPlayer extends BasePlayer {
   private long pendingSeekPositionMs;
   @Nullable private PositionInfo pendingMediaItemRemovalPosition;
   private MediaMetadata mediaMetadata;
+  private MediaMetadata playlistMetadata;
   private DeviceInfo deviceInfo;
 
   /**
@@ -268,6 +270,7 @@ public final class CastPlayer extends BasePlayer {
     playbackState = STATE_IDLE;
     currentTimeline = CastTimeline.EMPTY_CAST_TIMELINE;
     mediaMetadata = MediaMetadata.EMPTY;
+    playlistMetadata = MediaMetadata.EMPTY;
     currentTracks = Tracks.EMPTY;
     availableCommands = new Commands.Builder().addAll(PERMANENT_AVAILABLE_COMMANDS).build();
     pendingSeekWindowIndex = C.INDEX_UNSET;
@@ -656,14 +659,19 @@ public final class CastPlayer extends BasePlayer {
 
   @Override
   public MediaMetadata getPlaylistMetadata() {
-    // CastPlayer does not currently support metadata.
-    return MediaMetadata.EMPTY;
+    return playlistMetadata;
   }
 
-  /** This method is not supported and does nothing. */
   @Override
-  public void setPlaylistMetadata(MediaMetadata mediaMetadata) {
-    // CastPlayer does not currently support metadata.
+  public void setPlaylistMetadata(MediaMetadata playlistMetadata) {
+    checkNotNull(playlistMetadata);
+    if (playlistMetadata.equals(this.playlistMetadata)) {
+      return;
+    }
+    this.playlistMetadata = playlistMetadata;
+    listeners.sendEvent(
+        EVENT_PLAYLIST_METADATA_CHANGED,
+        listener -> listener.onPlaylistMetadataChanged(this.playlistMetadata));
   }
 
   @Override

libraries/cast/src/test/java/androidx/media3/cast/CastPlayerTest.java

@@ -1800,7 +1800,7 @@ public class CastPlayerTest {
   }
 
   @Test
-  public void setMediaItems_doesNotifyOnMetadataChanged() {
+  public void setMediaItems_doesNotifyOnMediaMetadataChanged() {
     when(mockRemoteMediaClient.queueJumpToItem(anyInt(), anyLong(), eq(null)))
         .thenReturn(mockPendingResult);
     ArgumentCaptor<MediaMetadata> metadataCaptor = ArgumentCaptor.forClass(MediaMetadata.class);
@@ -1827,7 +1827,7 @@ public class CastPlayerTest {
                 .build());
     castPlayer.addListener(mockListener);
 
-    MediaMetadata intitalMetadata = castPlayer.getMediaMetadata();
+    MediaMetadata initialMetadata = castPlayer.getMediaMetadata();
     castPlayer.setMediaItems(firstPlaylist, /* startIndex= */ 0, /* startPositionMs= */ 2000L);
     updateTimeLine(firstPlaylist, /* mediaQueueItemIds= */ new int[] {1}, /* currentItemId= */ 1);
     MediaMetadata firstMetadata = castPlayer.getMediaMetadata();
@@ -1850,7 +1850,7 @@ public class CastPlayerTest {
             secondPlaylist.get(1).mediaMetadata,
             secondPlaylist.get(0).mediaMetadata)
         .inOrder();
-    assertThat(intitalMetadata).isEqualTo(MediaMetadata.EMPTY);
+    assertThat(initialMetadata).isEqualTo(MediaMetadata.EMPTY);
     assertThat(ImmutableList.of(firstMetadata, secondMetadata, thirdMetadata))
         .containsExactly(
             firstPlaylist.get(0).mediaMetadata,
@@ -1898,6 +1898,35 @@ public class CastPlayerTest {
     verify(mockListener, never()).onMediaMetadataChanged(any());
   }
 
+  @Test
+  public void setPlaylistMetadata_doesNotifyOnPlaylistMetadataChanged() {
+    castPlayer.addListener(mockListener);
+
+    MediaMetadata metadata = new MediaMetadata.Builder().setArtist("foo").build();
+
+    assertThat(castPlayer.getPlaylistMetadata()).isEqualTo(MediaMetadata.EMPTY);
+
+    castPlayer.setPlaylistMetadata(metadata);
+
+    assertThat(castPlayer.getPlaylistMetadata()).isEqualTo(metadata);
+
+    verify(mockListener).onPlaylistMetadataChanged(metadata);
+  }
+
+  @Test
+  public void setPlaylistMetadata_equalMetadata_doesNotNotifyOnPlaylistMetadataChanged() {
+    castPlayer.addListener(mockListener);
+
+    MediaMetadata metadata = new MediaMetadata.Builder().setArtist("foo").build();
+
+    castPlayer.setPlaylistMetadata(metadata);
+    castPlayer.setPlaylistMetadata(metadata);
+
+    assertThat(castPlayer.getPlaylistMetadata()).isEqualTo(metadata);
+
+    verify(mockListener, times(1)).onPlaylistMetadataChanged(metadata);
+  }
+
   @Test
   public void getDeviceInfo_returnsCorrectDeviceInfoWithPlaybackTypeRemote() {
     DeviceInfo deviceInfo = castPlayer.getDeviceInfo();