diff --git a/library/src/androidTest/java/com/google/android/exoplayer2/extractor/ts/TsExtractorTest.java b/library/src/androidTest/java/com/google/android/exoplayer2/extractor/ts/TsExtractorTest.java
index b271ea566c..58893f15c1 100644
--- a/library/src/androidTest/java/com/google/android/exoplayer2/extractor/ts/TsExtractorTest.java
+++ b/library/src/androidTest/java/com/google/android/exoplayer2/extractor/ts/TsExtractorTest.java
@@ -207,6 +207,12 @@ public final class TsExtractorTest extends InstrumentationTestCase {
 
     private int consumedSdts;
 
+    @Override
+    public void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
+        TrackIdGenerator idGenerator) {
+      // Do nothing.
+    }
+
     @Override
     public void consume(ParsableByteArray sectionData) {
       // table_id(8), section_syntax_indicator(1), reserved_future_use(1), reserved(2),
diff --git a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionPayloadReader.java b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionPayloadReader.java
index 9be41af594..2bddc56582 100644
--- a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionPayloadReader.java
+++ b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionPayloadReader.java
@@ -15,6 +15,10 @@
  */
 package com.google.android.exoplayer2.extractor.ts;
 
+import com.google.android.exoplayer2.extractor.ExtractorOutput;
+import com.google.android.exoplayer2.extractor.TimestampAdjuster;
+import com.google.android.exoplayer2.extractor.TrackOutput;
+import com.google.android.exoplayer2.extractor.ts.TsPayloadReader.TrackIdGenerator;
 import com.google.android.exoplayer2.util.ParsableByteArray;
 
 /**
@@ -22,6 +26,17 @@ import com.google.android.exoplayer2.util.ParsableByteArray;
  */
 public interface SectionPayloadReader {
 
+  /**
+   * Initializes the section payload reader.
+   *
+   * @param timestampAdjuster A timestamp adjuster for offsetting and scaling sample timestamps.
+   * @param extractorOutput The {@link ExtractorOutput} that receives the extracted data.
+   * @param idGenerator A {@link PesReader.TrackIdGenerator} that generates unique track ids for the
+   *     {@link TrackOutput}s.
+   */
+  void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
+      TrackIdGenerator idGenerator);
+
   /**
    * Called by a {@link SectionReader} when a full section is received.
    *
diff --git a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionReader.java b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionReader.java
index ccf00f8d19..9a181897ab 100644
--- a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionReader.java
+++ b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/SectionReader.java
@@ -43,8 +43,7 @@ public final class SectionReader implements TsPayloadReader {
   @Override
   public void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
       TrackIdGenerator idGenerator) {
-    // TODO: Injectable section readers might want to generate metadata tracks.
-    // Do nothing.
+    reader.init(timestampAdjuster, extractorOutput, idGenerator);
   }
 
   @Override
diff --git a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java
index 6913207529..219101b8d3 100644
--- a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java
+++ b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java
@@ -65,8 +65,6 @@ public final class TsExtractor implements Extractor {
   public static final int TS_STREAM_TYPE_H265 = 0x24;
   public static final int TS_STREAM_TYPE_ID3 = 0x15;
 
-  private static final String TAG = "TsExtractor";
-
   private static final int TS_PACKET_SIZE = 188;
   private static final int TS_SYNC_BYTE = 0x47; // First byte of each TS packet.
   private static final int TS_PAT_PID = 0;
@@ -274,6 +272,12 @@ public final class TsExtractor implements Extractor {
       patScratch = new ParsableBitArray(new byte[4]);
     }
 
+    @Override
+    public void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
+        TrackIdGenerator idGenerator) {
+      // Do nothing.
+    }
+
     @Override
     public void consume(ParsableByteArray sectionData) {
       // table_id(8), section_syntax_indicator(1), '0'(1), reserved(2), section_length(12),
@@ -316,6 +320,12 @@ public final class TsExtractor implements Extractor {
       this.pid = pid;
     }
 
+    @Override
+    public void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
+        TrackIdGenerator idGenerator) {
+      // Do nothing.
+    }
+
     @Override
     public void consume(ParsableByteArray sectionData) {
       // table_id(8), section_syntax_indicator(1), '0'(1), reserved(2), section_length(12),
diff --git a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsPayloadReader.java b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsPayloadReader.java
index 3916be39c9..304c8c1282 100644
--- a/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsPayloadReader.java
+++ b/library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsPayloadReader.java
@@ -99,9 +99,10 @@ public interface TsPayloadReader {
   /**
    * Initializes the payload reader.
    *
-   * @param timestampAdjuster
-   * @param extractorOutput
-   * @param idGenerator
+   * @param timestampAdjuster A timestamp adjuster for offsetting and scaling sample timestamps.
+   * @param extractorOutput The {@link ExtractorOutput} that receives the extracted data.
+   * @param idGenerator A {@link PesReader.TrackIdGenerator} that generates unique track ids for the
+   *     {@link TrackOutput}s.
    */
   void init(TimestampAdjuster timestampAdjuster, ExtractorOutput extractorOutput,
       TrackIdGenerator idGenerator);