Fix seeking bug in opus

Fix a bug when seeking in an opus container. The calculations inside
DefaultOggSeeker may overflow a long primitive.

Issue: androidx/media#391

#minor-release

PiperOrigin-RevId: 534128513
(cherry picked from commit 5535cd18ec50862425adadd231778752bfe12ba1)

library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ogg/DefaultOggSeeker.java

@@ -28,6 +28,7 @@ import com.google.android.exoplayer2.util.Assertions;
 import com.google.android.exoplayer2.util.Util;
 import com.google.android.exoplayer2.util.Util;
 import java.io.EOFException;
 import java.io.EOFException;
 import java.io.IOException;
 import java.io.IOException;
+import java.math.BigInteger;
 
 
 /** Seeks in an Ogg stream. */
 /** Seeks in an Ogg stream. */
 /* package */ final class DefaultOggSeeker implements OggSeeker {
 /* package */ final class DefaultOggSeeker implements OggSeeker {
@@ -260,7 +261,12 @@ import java.io.IOException;
       long targetGranule = streamReader.convertTimeToGranule(timeUs);
       long targetGranule = streamReader.convertTimeToGranule(timeUs);
       long estimatedPosition =
       long estimatedPosition =
           payloadStartPosition
           payloadStartPosition
-              + (targetGranule * (payloadEndPosition - payloadStartPosition) / totalGranules)
+              // Use BigInteger arithmetic to avoid long overflow
+              // https://github.com/androidx/media/issues/391
+              + BigInteger.valueOf(targetGranule)
+                  .multiply(BigInteger.valueOf(payloadEndPosition - payloadStartPosition))
+                  .divide(BigInteger.valueOf(totalGranules))
+                  .longValue()
               - DEFAULT_OFFSET;
               - DEFAULT_OFFSET;
       estimatedPosition =
       estimatedPosition =
           Util.constrainValue(estimatedPosition, payloadStartPosition, payloadEndPosition - 1);
           Util.constrainValue(estimatedPosition, payloadStartPosition, payloadEndPosition - 1);