Set Format gapless info separately to Metadata in Extractors.

PiperOrigin-RevId: 344838400

library/extractor/src/main/java/com/google/android/exoplayer2/extractor/mp4/MetadataUtil.java

@@ -292,17 +292,11 @@ import java.util.List;
       int trackType,
       @Nullable Metadata udtaMetadata,
       @Nullable Metadata mdtaMetadata,
-      GaplessInfoHolder gaplessInfoHolder,
       Format.Builder formatBuilder,
       Metadata.Entry... additionalEntries) {
     Metadata formatMetadata = new Metadata();
 
     if (trackType == C.TRACK_TYPE_AUDIO) {
-      if (gaplessInfoHolder.hasGaplessInfo()) {
-        formatBuilder
-            .setEncoderDelay(gaplessInfoHolder.encoderDelay)
-            .setEncoderPadding(gaplessInfoHolder.encoderPadding);
-      }
       // We assume all udta metadata is associated with the audio track.
       if (udtaMetadata != null) {
         formatMetadata = udtaMetadata;
@@ -333,6 +327,18 @@ import java.util.List;
   }
 
   /**
+   * Updates a {@link Format.Builder} to include audio gapless information from the provided source.
+   */
+  public static void setFormatGaplessInfo(
+      int trackType, GaplessInfoHolder gaplessInfoHolder, Format.Builder formatBuilder) {
+    if (trackType == C.TRACK_TYPE_AUDIO && gaplessInfoHolder.hasGaplessInfo()) {
+      formatBuilder
+          .setEncoderDelay(gaplessInfoHolder.encoderDelay)
+          .setEncoderPadding(gaplessInfoHolder.encoderPadding);
+    }
+  }
+
+  /**
    * Parses a single userdata ilst element from a {@link ParsableByteArray}. The element is read
    * starting from the current position of the {@link ParsableByteArray}, and the position is
    * advanced by the size of the element. The position is advanced even if the element's type is

library/extractor/src/main/java/com/google/android/exoplayer2/extractor/mp4/Mp4Extractor.java

@@ -514,11 +514,11 @@ public final class Mp4Extractor implements Extractor, SeekMap {
         formatBuilder.setFrameRate(frameRate);
       }
 
+      MetadataUtil.setFormatGaplessInfo(track.type, gaplessInfoHolder, formatBuilder);
       MetadataUtil.setFormatMetadata(
           track.type,
           udtaMetadata,
           mdtaMetadata,
-          gaplessInfoHolder,
           formatBuilder,
           /* additionalEntries...= */ slowMotionMetadataEntries.toArray(new Metadata.Entry[0]));
       mp4Track.trackOutput.format(formatBuilder.build());