Rename MediaPeriodHolder.allRenderersEnabled

The new name reflects that it also waits for previously-used renderers
to be disabled.

Also fix some broken javadoc. These methods changed signature in
https://github.com/google/ExoPlayer/commit/ea347a464a81e16a9afdae0dcb5c0cdfcc533dc5

PiperOrigin-RevId: 359253177

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

@@ -1980,7 +1980,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
     @Nullable MediaPeriodHolder readingPeriod = queue.getReadingPeriod();
     if (readingPeriod == null
         || queue.getPlayingPeriod() == readingPeriod
-        || readingPeriod.allRenderersEnabled) {
+        || readingPeriod.allRenderersInCorrectState) {
       // Not reading ahead or all renderers updated.
       return;
     }
@@ -2075,7 +2075,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
     MediaPeriodHolder nextPlayingPeriodHolder = playingPeriodHolder.getNext();
     return nextPlayingPeriodHolder != null
         && rendererPositionUs >= nextPlayingPeriodHolder.getStartPositionRendererTime()
-        && nextPlayingPeriodHolder.allRenderersEnabled;
+        && nextPlayingPeriodHolder.allRenderersInCorrectState;
   }
 
   private boolean hasReadingPeriodFinishedReading() {
@@ -2294,7 +2294,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
         enableRenderer(i, rendererWasEnabledFlags[i]);
       }
     }
-    readingMediaPeriod.allRenderersEnabled = true;
+    readingMediaPeriod.allRenderersInCorrectState = true;
   }
 
   private void enableRenderer(int rendererIndex, boolean wasRendererEnabled)

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

@@ -53,12 +53,16 @@ import org.checkerframework.checker.nullness.compatqual.NullableType;
   /** {@link MediaPeriodInfo} about this media period. */
   public MediaPeriodInfo info;
   /**
-   * Whether all required renderers have been enabled with the {@link #sampleStreams} for this
+   * Whether all renderers are in the correct state for this {@link #mediaPeriod}.
+   *
+   * <p>Renderers that are needed must have been enabled with the {@link #sampleStreams} for this
    * {@link #mediaPeriod}. This means either {@link Renderer#enable(RendererConfiguration, Format[],
-   * SampleStream, long, boolean, boolean, long)} or {@link Renderer#replaceStream(Format[],
-   * SampleStream, long)} has been called.
+   * SampleStream, long, boolean, boolean, long, long)} or {@link Renderer#replaceStream(Format[],
+   * SampleStream, long, long)} has been called.
+   *
+   * <p>Renderers that are not needed must have been {@link Renderer#disable() disabled}.
    */
-  public boolean allRenderersEnabled;
+  public boolean allRenderersInCorrectState;
 
   private final boolean[] mayRetainStreamFlags;
   private final RendererCapabilities[] rendererCapabilities;