Reset playback speed when live speed control becomes unused

Issue: #8664
#minor-release
PiperOrigin-RevId: 360877086

RELEASENOTES.md

@@ -27,6 +27,8 @@
 *   Core
 *   Core
     *   Move `getRendererCount` and `getRendererType` methods from `Player` to
     *   Move `getRendererCount` and `getRendererType` methods from `Player` to
         `ExoPlayer`.
         `ExoPlayer`.
+    *   Reset playback speed when live playback speed control becomes unused
+        ([#8664](https://github.com/google/ExoPlayer/issues/8664)).
 *   Remove deprecated symbols:
 *   Remove deprecated symbols:
     *   Remove `Player.DefaultEventListener`. Use `Player.EventListener`
     *   Remove `Player.DefaultEventListener`. Use `Player.EventListener`
         instead.
         instead.

library/core/src/main/java/com/google/android/exoplayer2/ExoPlayerImplInternal.java

@@ -1829,7 +1829,10 @@ import java.util.concurrent.atomic.AtomicBoolean;
       MediaPeriodId oldPeriodId,
       MediaPeriodId oldPeriodId,
       long positionForTargetOffsetOverrideUs) {
       long positionForTargetOffsetOverrideUs) {
     if (newTimeline.isEmpty() || !shouldUseLivePlaybackSpeedControl(newTimeline, newPeriodId)) {
     if (newTimeline.isEmpty() || !shouldUseLivePlaybackSpeedControl(newTimeline, newPeriodId)) {
-      // Live playback speed control is unused.
+      // Live playback speed control is unused for the current period, reset speed if adjusted.
+      if (mediaClock.getPlaybackParameters().speed != playbackInfo.playbackParameters.speed) {
+        mediaClock.setPlaybackParameters(playbackInfo.playbackParameters);
+      }
       return;
       return;
     }
     }
     int windowIndex = newTimeline.getPeriodByUid(newPeriodId.periodUid, period).windowIndex;
     int windowIndex = newTimeline.getPeriodByUid(newPeriodId.periodUid, period).windowIndex;