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notify ShuffleOrder when media item(s) are moved #2226

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Merged
merged 3 commits into from
Jun 11, 2025
Merged

notify ShuffleOrder when media item(s) are moved #2226

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9a243b9
notify ShuffleOrder when media item(s) are moved
nift4 Mar 11, 2025
3d7e874
Merge release notes
marcbaechinger Jun 10, 2025
ad92956
Make default implementation of cloneAndMove a no-op
marcbaechinger May 20, 2025
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2 changes: 2 additions & 0 deletions RELEASENOTES.md
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Expand Up @@ -13,6 +13,8 @@
* Throw `IllegalStateException` when `PreloadMediaSource` is played by an
`ExoPlayer` with a playback thread that is different than the preload
thread ([#2495](https://github.com/androidx/media/issues/2495)).
* Add `cloneAndMove` to `ShuffleMode` with a default implementation
([#2226](https://github.com/androidx/media/pull/2226)).
* Transformer:
* Add `CodecDbLite` that enables chipset specific optimizations of video
encoding settings.
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1 change: 1 addition & 0 deletions libraries/exoplayer/src/main/java/androidx/media3/exoplayer/ExoPlayerImpl.java
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Expand Up @@ -704,6 +704,7 @@ public void moveMediaItems(int fromIndex, int toIndex, int newFromIndex) {
Timeline oldTimeline = getCurrentTimeline();
pendingOperationAcks++;
Util.moveItems(mediaSourceHolderSnapshots, fromIndex, toIndex, newFromIndex);
shuffleOrder = shuffleOrder.cloneAndMove(fromIndex, toIndex, newFromIndex);
Timeline newTimeline = createMaskingTimeline();
PlaybackInfo newPlaybackInfo =
maskTimelineAndPosition(
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18 changes: 18 additions & 0 deletions libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/ShuffleOrder.java
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Expand Up @@ -266,6 +266,24 @@ public ShuffleOrder cloneAndClear() {
*/
ShuffleOrder cloneAndInsert(int insertionIndex, int insertionCount);

/**
* Returns a copy of the shuffle order to be used after a move.
*
* <p>The default implementation is a no-op. Custom implementation can choose to re-shuffle when
* items are moved.
*
* @param indexFrom The starting index in the unshuffled order of the range to move, from before
* the move occurs.
* @param indexToExclusive The smallest index (must be greater or equal to {@code indexFrom}) that
* is not included in the range of elements moved, from before the move occurs.
* @param newIndexFrom The starting index in the unshuffled order of the range to move, from after
* the move occurs.
* @return A copy of this {@link ShuffleOrder} with the elements moved.
*/
default ShuffleOrder cloneAndMove(int indexFrom, int indexToExclusive, int newIndexFrom) {
return this;
}

/**
* Returns a copy of the shuffle order with a range of elements removed.
*
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