1 files changed, 0 insertions, 224 deletions
diff --git a/tree/library/core/src/main/java/com/google/android/exoplayer2/source/MergingMediaSource.java b/tree/library/core/src/main/java/com/google/android/exoplayer2/source/MergingMediaSource.java
deleted file mode 100644
index d69c037a..00000000
--- a/tree/library/core/src/main/java/com/google/android/exoplayer2/source/MergingMediaSource.java
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright (C) 2016 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.source;
-
-import androidx.annotation.IntDef;
-import androidx.annotation.Nullable;
-import com.google.android.exoplayer2.Timeline;
-import com.google.android.exoplayer2.upstream.Allocator;
-import com.google.android.exoplayer2.upstream.TransferListener;
-import java.io.IOException;
-import java.lang.annotation.Documented;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-
-/**
- * Merges multiple {@link MediaSource}s.
- *
- * <p>The {@link Timeline}s of the sources being merged must have the same number of periods.
- */
-public final class MergingMediaSource extends CompositeMediaSource<Integer> {
-
-  /**
-   * Thrown when a {@link MergingMediaSource} cannot merge its sources.
-   */
-  public static final class IllegalMergeException extends IOException {
-
-    /** The reason the merge failed. One of {@link #REASON_PERIOD_COUNT_MISMATCH}. */
-    @Documented
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef({REASON_PERIOD_COUNT_MISMATCH})
-    public @interface Reason {}
-    /**
-     * The sources have different period counts.
-     */
-    public static final int REASON_PERIOD_COUNT_MISMATCH = 0;
-
-    /**
-     * The reason the merge failed.
-     */
-    @Reason public final int reason;
-
-    /**
-     * @param reason The reason the merge failed.
-     */
-    public IllegalMergeException(@Reason int reason) {
-      this.reason = reason;
-    }
-
-  }
-
-  private static final int PERIOD_COUNT_UNSET = -1;
-
-  private final boolean adjustPeriodTimeOffsets;
-  private final MediaSource[] mediaSources;
-  private final Timeline[] timelines;
-  private final ArrayList<MediaSource> pendingTimelineSources;
-  private final CompositeSequenceableLoaderFactory compositeSequenceableLoaderFactory;
-
-  private int periodCount;
-  private long[][] periodTimeOffsetsUs;
-  @Nullable private IllegalMergeException mergeError;
-
-  /**
-   * Creates a merging media source.
-   *
-   * <p>Offsets between the timestamps in the media sources will not be adjusted.
-   *
-   * @param mediaSources The {@link MediaSource}s to merge.
-   */
-  public MergingMediaSource(MediaSource... mediaSources) {
-    this(/* adjustPeriodTimeOffsets= */ false, mediaSources);
-  }
-
-  /**
-   * Creates a merging media source.
-   *
-   * @param adjustPeriodTimeOffsets Whether to adjust timestamps of the merged media sources to all
-   *     start at the same time.
-   * @param mediaSources The {@link MediaSource}s to merge.
-   */
-  public MergingMediaSource(boolean adjustPeriodTimeOffsets, MediaSource... mediaSources) {
-    this(adjustPeriodTimeOffsets, new DefaultCompositeSequenceableLoaderFactory(), mediaSources);
-  }
-
-  /**
-   * Creates a merging media source.
-   *
-   * @param adjustPeriodTimeOffsets Whether to adjust timestamps of the merged media sources to all
-   *     start at the same time.
-   * @param compositeSequenceableLoaderFactory A factory to create composite {@link
-   *     SequenceableLoader}s for when this media source loads data from multiple streams (video,
-   *     audio etc...).
-   * @param mediaSources The {@link MediaSource}s to merge.
-   */
-  public MergingMediaSource(
-      boolean adjustPeriodTimeOffsets,
-      CompositeSequenceableLoaderFactory compositeSequenceableLoaderFactory,
-      MediaSource... mediaSources) {
-    this.adjustPeriodTimeOffsets = adjustPeriodTimeOffsets;
-    this.mediaSources = mediaSources;
-    this.compositeSequenceableLoaderFactory = compositeSequenceableLoaderFactory;
-    pendingTimelineSources = new ArrayList<>(Arrays.asList(mediaSources));
-    periodCount = PERIOD_COUNT_UNSET;
-    timelines = new Timeline[mediaSources.length];
-    periodTimeOffsetsUs = new long[0][];
-  }
-
-  @Override
-  @Nullable
-  public Object getTag() {
-    return mediaSources.length > 0 ? mediaSources[0].getTag() : null;
-  }
-
-  @Override
-  protected void prepareSourceInternal(@Nullable TransferListener mediaTransferListener) {
-    super.prepareSourceInternal(mediaTransferListener);
-    for (int i = 0; i < mediaSources.length; i++) {
-      prepareChildSource(i, mediaSources[i]);
-    }
-  }
-
-  @Override
-  public void maybeThrowSourceInfoRefreshError() throws IOException {
-    if (mergeError != null) {
-      throw mergeError;
-    }
-    super.maybeThrowSourceInfoRefreshError();
-  }
-
-  @Override
-  public MediaPeriod createPeriod(MediaPeriodId id, Allocator allocator, long startPositionUs) {
-    MediaPeriod[] periods = new MediaPeriod[mediaSources.length];
-    int periodIndex = timelines[0].getIndexOfPeriod(id.periodUid);
-    for (int i = 0; i < periods.length; i++) {
-      MediaPeriodId childMediaPeriodId =
-          id.copyWithPeriodUid(timelines[i].getUidOfPeriod(periodIndex));
-      periods[i] =
-          mediaSources[i].createPeriod(
-              childMediaPeriodId, allocator, startPositionUs - periodTimeOffsetsUs[periodIndex][i]);
-    }
-    return new MergingMediaPeriod(
-        compositeSequenceableLoaderFactory, periodTimeOffsetsUs[periodIndex], periods);
-  }
-
-  @Override
-  public void releasePeriod(MediaPeriod mediaPeriod) {
-    MergingMediaPeriod mergingPeriod = (MergingMediaPeriod) mediaPeriod;
-    for (int i = 0; i < mediaSources.length; i++) {
-      mediaSources[i].releasePeriod(mergingPeriod.getChildPeriod(i));
-    }
-  }
-
-  @Override
-  protected void releaseSourceInternal() {
-    super.releaseSourceInternal();
-    Arrays.fill(timelines, null);
-    periodCount = PERIOD_COUNT_UNSET;
-    mergeError = null;
-    pendingTimelineSources.clear();
-    Collections.addAll(pendingTimelineSources, mediaSources);
-  }
-
-  @Override
-  protected void onChildSourceInfoRefreshed(
-      Integer id, MediaSource mediaSource, Timeline timeline) {
-    if (mergeError != null) {
-      return;
-    }
-    if (periodCount == PERIOD_COUNT_UNSET) {
-      periodCount = timeline.getPeriodCount();
-    } else if (timeline.getPeriodCount() != periodCount) {
-      mergeError = new IllegalMergeException(IllegalMergeException.REASON_PERIOD_COUNT_MISMATCH);
-      return;
-    }
-    if (periodTimeOffsetsUs.length == 0) {
-      periodTimeOffsetsUs = new long[periodCount][timelines.length];
-    }
-    pendingTimelineSources.remove(mediaSource);
-    timelines[id] = timeline;
-    if (pendingTimelineSources.isEmpty()) {
-      if (adjustPeriodTimeOffsets) {
-        computePeriodTimeOffsets();
-      }
-      refreshSourceInfo(timelines[0]);
-    }
-  }
-
-  @Override
-  @Nullable
-  protected MediaPeriodId getMediaPeriodIdForChildMediaPeriodId(
-      Integer id, MediaPeriodId mediaPeriodId) {
-    return id == 0 ? mediaPeriodId : null;
-  }
-
-  private void computePeriodTimeOffsets() {
-    Timeline.Period period = new Timeline.Period();
-    for (int periodIndex = 0; periodIndex < periodCount; periodIndex++) {
-      long primaryWindowOffsetUs =
-          -timelines[0].getPeriod(periodIndex, period).getPositionInWindowUs();
-      for (int timelineIndex = 1; timelineIndex < timelines.length; timelineIndex++) {
-        long secondaryWindowOffsetUs =
-            -timelines[timelineIndex].getPeriod(periodIndex, period).getPositionInWindowUs();
-        periodTimeOffsetsUs[periodIndex][timelineIndex] =
-            primaryWindowOffsetUs - secondaryWindowOffsetUs;
-      }
-    }
-  }
-}