Remove throws clause from Renderer.stop

We don't need the renderer immediately after stopping, so the
renderer should not throw a checked exception until it's used again.
This is inline with the not throwing from disable().

Also, none of the known implementation throw an exception at the moment
and all reasonable base classes omit the throws clause already.

PiperOrigin-RevId: 319503643

RELEASENOTES.md

@@ -91,6 +91,7 @@
     *   Add `TrackSelection.shouldCancelMediaChunkLoad` to check whether an
         ongoing load should be canceled. Only supported by HLS streams so far.
         ([#2848](https://github.com/google/ExoPlayer/issues/2848)).
+    *   Remove throws clause from Renderer.stop.
 *   Video: Pass frame rate hint to `Surface.setFrameRate` on Android R devices.
 *   Track selection:
     *   Add `Player.getTrackSelector`.

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

@@ -151,7 +151,7 @@ public abstract class BaseRenderer implements Renderer, RendererCapabilities {
   }
 
   @Override
-  public final void stop() throws ExoPlaybackException {
+  public final void stop() {
     Assertions.checkState(state == STATE_STARTED);
     state = STATE_ENABLED;
     onStopped();
@@ -255,12 +255,10 @@ public abstract class BaseRenderer implements Renderer, RendererCapabilities {
 
   /**
    * Called when the renderer is stopped.
-   * <p>
-   * The default implementation is a no-op.
    *
-   * @throws ExoPlaybackException If an error occurs.
+   * <p>The default implementation is a no-op.
    */
-  protected void onStopped() throws ExoPlaybackException {
+  protected void onStopped() {
     // Do nothing.
   }
 

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

@@ -130,7 +130,7 @@ public abstract class NoSampleRenderer implements Renderer, RendererCapabilities
   }
 
   @Override
-  public final void stop() throws ExoPlaybackException {
+  public final void stop() {
     Assertions.checkState(state == STATE_STARTED);
     state = STATE_ENABLED;
     onStopped();
@@ -237,12 +237,10 @@ public abstract class NoSampleRenderer implements Renderer, RendererCapabilities
 
   /**
    * Called when the renderer is stopped.
-   * <p>
-   * The default implementation is a no-op.
    *
-   * @throws ExoPlaybackException If an error occurs.
+   * <p>The default implementation is a no-op.
    */
-  protected void onStopped() throws ExoPlaybackException {
+  protected void onStopped() {
     // Do nothing.
   }
 

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

@@ -466,13 +466,11 @@ public interface Renderer extends PlayerMessage.Target {
 
   /**
    * Stops the renderer, transitioning it to the {@link #STATE_ENABLED} state.
-   * <p>
-   * This method may be called when the renderer is in the following states:
-   * {@link #STATE_STARTED}.
    *
-   * @throws ExoPlaybackException If an error occurs.
+   * <p>This method may be called when the renderer is in the following states: {@link
+   * #STATE_STARTED}.
    */
-  void stop() throws ExoPlaybackException;
+  void stop();
 
   /**
    * Disable the renderer, transitioning it to the {@link #STATE_DISABLED} state.

library/core/src/test/java/com/google/android/exoplayer2/ExoPlayerTest.java

@@ -6089,69 +6089,6 @@ public final class ExoPlayerTest {
     assertThat(trackSelectionsAfterError.get().get(1)).isNotNull(); // Audio renderer.
   }
 
-  @Test
-  public void errorThrownDuringRendererDisableAtPeriodTransition_isReportedForCurrentPeriod() {
-    FakeMediaSource source1 =
-        new FakeMediaSource(
-            new FakeTimeline(/* windowCount= */ 1), ExoPlayerTestRunner.VIDEO_FORMAT);
-    FakeMediaSource source2 =
-        new FakeMediaSource(
-            new FakeTimeline(/* windowCount= */ 1), ExoPlayerTestRunner.AUDIO_FORMAT);
-    FakeRenderer videoRenderer =
-        new FakeRenderer(C.TRACK_TYPE_VIDEO) {
-          @Override
-          protected void onStopped() throws ExoPlaybackException {
-            // Fail when stopping the renderer. This will happen during the period transition.
-            throw createRendererException(
-                new IllegalStateException(), ExoPlayerTestRunner.VIDEO_FORMAT);
-          }
-        };
-    FakeRenderer audioRenderer = new FakeRenderer(C.TRACK_TYPE_AUDIO);
-    AtomicReference<TrackGroupArray> trackGroupsAfterError = new AtomicReference<>();
-    AtomicReference<TrackSelectionArray> trackSelectionsAfterError = new AtomicReference<>();
-    AtomicInteger windowIndexAfterError = new AtomicInteger();
-    ActionSchedule actionSchedule =
-        new ActionSchedule.Builder(TAG)
-            .executeRunnable(
-                new PlayerRunnable() {
-                  @Override
-                  public void run(SimpleExoPlayer player) {
-                    player.addAnalyticsListener(
-                        new AnalyticsListener() {
-                          @Override
-                          public void onPlayerError(
-                              EventTime eventTime, ExoPlaybackException error) {
-                            trackGroupsAfterError.set(player.getCurrentTrackGroups());
-                            trackSelectionsAfterError.set(player.getCurrentTrackSelections());
-                            windowIndexAfterError.set(player.getCurrentWindowIndex());
-                          }
-                        });
-                  }
-                })
-            .build();
-    ExoPlayerTestRunner testRunner =
-        new ExoPlayerTestRunner.Builder(context)
-            .setMediaSources(source1, source2)
-            .setActionSchedule(actionSchedule)
-            .setRenderers(videoRenderer, audioRenderer)
-            .build();
-
-    assertThrows(
-        ExoPlaybackException.class,
-        () ->
-            testRunner
-                .start(/* doPrepare= */ true)
-                .blockUntilActionScheduleFinished(TIMEOUT_MS)
-                .blockUntilEnded(TIMEOUT_MS));
-
-    assertThat(windowIndexAfterError.get()).isEqualTo(0);
-    assertThat(trackGroupsAfterError.get().length).isEqualTo(1);
-    assertThat(trackGroupsAfterError.get().get(0).getFormat(0))
-        .isEqualTo(ExoPlayerTestRunner.VIDEO_FORMAT);
-    assertThat(trackSelectionsAfterError.get().get(0)).isNotNull(); // Video renderer.
-    assertThat(trackSelectionsAfterError.get().get(1)).isNull(); // Audio renderer.
-  }
-
   // TODO(b/150584930): Fix reporting of renderer errors.
   @Ignore
   @Test

testutils/src/main/java/com/google/android/exoplayer2/testutil/FakeVideoRenderer.java

@@ -63,7 +63,7 @@ public class FakeVideoRenderer extends FakeRenderer {
   }
 
   @Override
-  protected void onStopped() throws ExoPlaybackException {
+  protected void onStopped() {
     super.onStopped();
     eventDispatcher.droppedFrames(/* droppedFrameCount= */ 0, /* elapsedMs= */ 0);
     eventDispatcher.reportVideoFrameProcessingOffset(