Add EditedMediaItem class

This class will be used in a follow-up CL.

PiperOrigin-RevId: 502615323

library/transformer/src/main/java/com/google/android/exoplayer2/transformer/EditedMediaItem.java

+/*
+ * Copyright 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.exoplayer2.transformer;
+
+import com.google.android.exoplayer2.MediaItem;
+import com.google.common.collect.ImmutableList;
+
+/** A {@link MediaItem} with the transformations to apply to it. */
+public class EditedMediaItem {
+
+  /* package */ final MediaItem mediaItem;
+  /* package */ final Effects effects;
+
+  /**
+   * Creates an instance with no {@link Effects}.
+   *
+   * @param mediaItem The {@link MediaItem} to edit.
+   */
+  public EditedMediaItem(MediaItem mediaItem) {
+    this(mediaItem, new Effects(ImmutableList.of(), ImmutableList.of()));
+  }
+
+  /**
+   * Creates an instance.
+   *
+   * @param mediaItem The {@link MediaItem} to edit.
+   * @param effects The {@link Effects} to apply to the {@code mediaItem}.
+   */
+  public EditedMediaItem(MediaItem mediaItem, Effects effects) {
+    this.mediaItem = mediaItem;
+    this.effects = effects;
+  }
+}

library/transformer/src/main/java/com/google/android/exoplayer2/transformer/Effects.java

+/*
+ * Copyright 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.google.android.exoplayer2.transformer;
+
+import com.google.android.exoplayer2.MediaItem;
+import com.google.android.exoplayer2.audio.AudioProcessor;
+import com.google.android.exoplayer2.effect.GlEffectsFrameProcessor;
+import com.google.android.exoplayer2.util.Effect;
+import com.google.android.exoplayer2.util.FrameProcessor;
+import com.google.common.collect.ImmutableList;
+
+/** Effects to apply to a {@link MediaItem}. */
+public final class Effects {
+
+  /* package */ final ImmutableList<AudioProcessor> audioProcessors;
+  /* package */ final ImmutableList<Effect> videoEffects;
+  /* package */ final FrameProcessor.Factory frameProcessorFactory;
+
+  /**
+   * Creates an instance using a {@link GlEffectsFrameProcessor.Factory}.
+   *
+   * <p>This is equivalent to calling {@link Effects#Effects(ImmutableList, ImmutableList,
+   * FrameProcessor.Factory)} with a {@link GlEffectsFrameProcessor.Factory}.
+   */
+  public Effects(
+      ImmutableList<AudioProcessor> audioProcessors, ImmutableList<Effect> videoEffects) {
+    this(audioProcessors, videoEffects, new GlEffectsFrameProcessor.Factory());
+  }
+
+  /**
+   * Creates an instance.
+   *
+   * @param audioProcessors The list of {@link AudioProcessor} instances to apply to audio buffers.
+   *     They are applied in the order of the list, and buffers will only be modified by that {@link
+   *     AudioProcessor} if it {@link AudioProcessor#isActive()} based on the current configuration.
+   * @param videoEffects The list of {@link Effect} instances to apply to each video frame. They are
+   *     applied in the order of the list, after {@linkplain
+   *     TransformationRequest.Builder#setFlattenForSlowMotion(boolean) slow-motion flattening}.
+   * @param frameProcessorFactory The {@link FrameProcessor.Factory} for the {@link FrameProcessor}
+   *     to use when applying the {@code videoEffects} to the video frames.
+   */
+  public Effects(
+      ImmutableList<AudioProcessor> audioProcessors,
+      ImmutableList<Effect> videoEffects,
+      FrameProcessor.Factory frameProcessorFactory) {
+    this.audioProcessors = audioProcessors;
+    this.videoEffects = videoEffects;
+    this.frameProcessorFactory = frameProcessorFactory;
+  }
+}