Implement a segment based speed provider and interface.

PiperOrigin-RevId: 352401836

library/common/src/main/java/com/google/android/exoplayer2/metadata/mp4/SlowMotionData.java

@@ -23,7 +23,9 @@ import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.metadata.Metadata;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;
 import com.google.common.base.Objects;
 import com.google.common.base.Objects;
+import com.google.common.collect.ComparisonChain;
 import java.util.ArrayList;
 import java.util.ArrayList;
+import java.util.Comparator;
 import java.util.List;
 import java.util.List;
 
 
 /** Holds information about the segments of slow motion playback within a track. */
 /** Holds information about the segments of slow motion playback within a track. */
@@ -32,6 +34,14 @@ public final class SlowMotionData implements Metadata.Entry {
   /** Holds information about a single segment of slow motion playback within a track. */
   /** Holds information about a single segment of slow motion playback within a track. */
   public static final class Segment implements Parcelable {
   public static final class Segment implements Parcelable {
 
 
+    public static final Comparator<Segment> BY_START_THEN_END_THEN_DIVISOR =
+        (s1, s2) ->
+            ComparisonChain.start()
+                .compare(s1.startTimeMs, s2.startTimeMs)
+                .compare(s1.endTimeMs, s2.endTimeMs)
+                .compare(s1.speedDivisor, s2.speedDivisor)
+                .result();
+
     /** The start time, in milliseconds, of the track segment that is intended to be slow motion. */
     /** The start time, in milliseconds, of the track segment that is intended to be slow motion. */
     public final long startTimeMs;
     public final long startTimeMs;
     /** The end time, in milliseconds, of the track segment that is intended to be slow motion. */
     /** The end time, in milliseconds, of the track segment that is intended to be slow motion. */