Make resolveSeekPositionUs an instance method

PiperOrigin-RevId: 291125686

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

@@ -17,6 +17,7 @@ package com.google.android.exoplayer2;
 
 import androidx.annotation.Nullable;
 import com.google.android.exoplayer2.util.Assertions;
+import com.google.android.exoplayer2.util.Util;
 
 /**
  * Parameters that apply to seeking.
@@ -71,6 +72,41 @@ public final class SeekParameters {
     this.toleranceAfterUs = toleranceAfterUs;
   }
 
+  /**
+   * Resolves a seek based on the parameters, given the requested seek position and two candidate
+   * sync points.
+   *
+   * @param positionUs The requested seek position, in microseocnds.
+   * @param firstSyncUs The first candidate seek point, in micrseconds.
+   * @param secondSyncUs The second candidate seek point, in microseconds. May equal {@code
+   *     firstSyncUs} if there's only one candidate.
+   * @return The resolved seek position, in microseconds.
+   */
+  public long resolveSeekPositionUs(long positionUs, long firstSyncUs, long secondSyncUs) {
+    if (toleranceBeforeUs == 0 && toleranceAfterUs == 0) {
+      return positionUs;
+    }
+    long minPositionUs =
+        Util.subtractWithOverflowDefault(positionUs, toleranceBeforeUs, Long.MIN_VALUE);
+    long maxPositionUs = Util.addWithOverflowDefault(positionUs, toleranceAfterUs, Long.MAX_VALUE);
+    boolean firstSyncPositionValid = minPositionUs <= firstSyncUs && firstSyncUs <= maxPositionUs;
+    boolean secondSyncPositionValid =
+        minPositionUs <= secondSyncUs && secondSyncUs <= maxPositionUs;
+    if (firstSyncPositionValid && secondSyncPositionValid) {
+      if (Math.abs(firstSyncUs - positionUs) <= Math.abs(secondSyncUs - positionUs)) {
+        return firstSyncUs;
+      } else {
+        return secondSyncUs;
+      }
+    } else if (firstSyncPositionValid) {
+      return firstSyncUs;
+    } else if (secondSyncPositionValid) {
+      return secondSyncUs;
+    } else {
+      return minPositionUs;
+    }
+  }
+
   @Override
   public boolean equals(@Nullable Object obj) {
     if (this == obj) {

library/core/src/main/java/com/google/android/exoplayer2/source/ProgressiveMediaPeriod.java

@@ -446,8 +446,8 @@ import org.checkerframework.checker.nullness.compatqual.NullableType;
       return 0;
     }
     SeekPoints seekPoints = seekMap.getSeekPoints(positionUs);
-    return Util.resolveSeekPositionUs(
+    return seekParameters.resolveSeekPositionUs(
-        positionUs, seekParameters, seekPoints.first.timeUs, seekPoints.second.timeUs);
+        positionUs, seekPoints.first.timeUs, seekPoints.second.timeUs);
   }
 
   // SampleStream methods.

library/core/src/main/java/com/google/android/exoplayer2/util/Util.java

@@ -51,7 +51,6 @@ import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.ExoPlayerLibraryInfo;
 import com.google.android.exoplayer2.Format;
 import com.google.android.exoplayer2.ParserException;
-import com.google.android.exoplayer2.SeekParameters;
 import com.google.android.exoplayer2.upstream.DataSource;
 import java.io.ByteArrayOutputStream;
 import java.io.Closeable;
@@ -1140,44 +1139,6 @@ public final class Util {
     return Math.round((double) mediaDuration / speed);
   }
 
-  /**
-   * Resolves a seek given the requested seek position, a {@link SeekParameters} and two candidate
-   * sync points.
-   *
-   * @param positionUs The requested seek position, in microseocnds.
-   * @param seekParameters The {@link SeekParameters}.
-   * @param firstSyncUs The first candidate seek point, in micrseconds.
-   * @param secondSyncUs The second candidate seek point, in microseconds. May equal {@code
-   *     firstSyncUs} if there's only one candidate.
-   * @return The resolved seek position, in microseconds.
-   */
-  public static long resolveSeekPositionUs(
-      long positionUs, SeekParameters seekParameters, long firstSyncUs, long secondSyncUs) {
-    if (SeekParameters.EXACT.equals(seekParameters)) {
-      return positionUs;
-    }
-    long minPositionUs =
-        subtractWithOverflowDefault(positionUs, seekParameters.toleranceBeforeUs, Long.MIN_VALUE);
-    long maxPositionUs =
-        addWithOverflowDefault(positionUs, seekParameters.toleranceAfterUs, Long.MAX_VALUE);
-    boolean firstSyncPositionValid = minPositionUs <= firstSyncUs && firstSyncUs <= maxPositionUs;
-    boolean secondSyncPositionValid =
-        minPositionUs <= secondSyncUs && secondSyncUs <= maxPositionUs;
-    if (firstSyncPositionValid && secondSyncPositionValid) {
-      if (Math.abs(firstSyncUs - positionUs) <= Math.abs(secondSyncUs - positionUs)) {
-        return firstSyncUs;
-      } else {
-        return secondSyncUs;
-      }
-    } else if (firstSyncPositionValid) {
-      return firstSyncUs;
-    } else if (secondSyncPositionValid) {
-      return secondSyncUs;
-    } else {
-      return minPositionUs;
-    }
-  }
-
   /**
    * Converts a list of integers to a primitive array.
    *

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DefaultDashChunkSource.java

@@ -198,7 +198,7 @@ public class DefaultDashChunkSource implements DashChunkSource {
             firstSyncUs < positionUs && segmentNum < representationHolder.getSegmentCount() - 1
                 ? representationHolder.getSegmentStartTimeUs(segmentNum + 1)
                 : firstSyncUs;
-        return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
+        return seekParameters.resolveSeekPositionUs(positionUs, firstSyncUs, secondSyncUs);
       }
     }
     // We don't have a segment index to adjust the seek position with yet.

library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/DefaultSsChunkSource.java

@@ -38,7 +38,6 @@ import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.LoaderErrorThrower;
 import com.google.android.exoplayer2.upstream.TransferListener;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.List;
 
@@ -129,7 +128,7 @@ public class DefaultSsChunkSource implements SsChunkSource {
         firstSyncUs < positionUs && chunkIndex < streamElement.chunkCount - 1
             ? streamElement.getStartTimeUs(chunkIndex + 1)
             : firstSyncUs;
-    return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
+    return seekParameters.resolveSeekPositionUs(positionUs, firstSyncUs, secondSyncUs);
   }
 
   @Override

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

@@ -32,7 +32,6 @@ import com.google.android.exoplayer2.upstream.DataSource;
 import com.google.android.exoplayer2.upstream.DataSpec;
 import com.google.android.exoplayer2.upstream.TransferListener;
 import com.google.android.exoplayer2.util.MimeTypes;
-import com.google.android.exoplayer2.util.Util;
 import java.io.IOException;
 import java.util.List;
 
@@ -90,7 +89,7 @@ public final class FakeChunkSource implements ChunkSource {
         firstSyncUs < positionUs && chunkIndex < dataSet.getChunkCount() - 1
             ? dataSet.getStartTime(chunkIndex + 1)
             : firstSyncUs;
-    return Util.resolveSeekPositionUs(positionUs, seekParameters, firstSyncUs, secondSyncUs);
+    return seekParameters.resolveSeekPositionUs(positionUs, firstSyncUs, secondSyncUs);
   }
 
   @Override