Convert extractor factory classes to static final objects

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=127415273

extensions/flac/src/androidTest/java/com/google/android/exoplayer2/ext/flac/FlacPlaybackTest.java

@@ -78,7 +78,7 @@ public class FlacPlaybackTest extends InstrumentationTestCase {
           uri,
           new DefaultDataSourceFactory(context, "ExoPlayerExtFlacTest"),
           null,
-          new MatroskaExtractor.Factory(),
+          MatroskaExtractor.FACTORY,
           null,
           null);
       player.setMediaSource(mediaSource);

extensions/flac/src/main/java/com/google/android/exoplayer2/ext/flac/FlacExtractor.java

@@ -40,14 +40,14 @@ public final class FlacExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is a {@link FlacExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new FlacExtractor()};
     }
 
-  }
+  };
 
   /**
    * FLAC signature: first 4 is the signature word, second 4 is the sizeof STREAMINFO. 0x22 is the

extensions/opus/src/androidTest/java/com/google/android/exoplayer2/ext/opus/OpusPlaybackTest.java

@@ -78,7 +78,7 @@ public class OpusPlaybackTest extends InstrumentationTestCase {
           uri,
           new DefaultDataSourceFactory(context, "ExoPlayerExtOpusTest"),
           null,
-          new MatroskaExtractor.Factory(),
+          MatroskaExtractor.FACTORY,
           null,
           null);
       player.setMediaSource(mediaSource);

extensions/vp9/src/androidTest/java/com/google/android/exoplayer2/ext/vp9/VpxPlaybackTest.java

@@ -94,7 +94,7 @@ public class VpxPlaybackTest extends InstrumentationTestCase {
           uri,
           new DefaultDataSourceFactory(context, "ExoPlayerExtVp9Test"),
           null,
-          new MatroskaExtractor.Factory(),
+          MatroskaExtractor.FACTORY,
           null,
           null);
       player.sendMessages(new ExoPlayer.ExoPlayerMessage(videoRenderer,

library/src/main/java/com/google/android/exoplayer2/extractor/flv/FlvExtractor.java

@@ -34,14 +34,14 @@ public final class FlvExtractor implements Extractor, SeekMap {
   /**
    * Factory that returns one extractor which is a {@link FlvExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new FlvExtractor()};
     }
 
-  }
+  };
 
   // Header sizes.
   private static final int FLV_HEADER_SIZE = 9;

library/src/main/java/com/google/android/exoplayer2/extractor/mkv/MatroskaExtractor.java

@@ -55,14 +55,14 @@ public final class MatroskaExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is a {@link MatroskaExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new MatroskaExtractor()};
     }
 
-  }
+  };
 
   private static final int BLOCK_STATE_START = 0;
   private static final int BLOCK_STATE_HEADER = 1;

library/src/main/java/com/google/android/exoplayer2/extractor/mp3/Mp3Extractor.java

@@ -41,14 +41,14 @@ public final class Mp3Extractor implements Extractor {
   /**
    * Factory that returns one extractor which is an {@link Mp3Extractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new Mp3Extractor()};
     }
 
-  }
+  };
 
   /**
    * The maximum number of bytes to search when synchronizing, before giving up.

library/src/main/java/com/google/android/exoplayer2/extractor/mp4/FragmentedMp4Extractor.java

@@ -54,14 +54,14 @@ public final class FragmentedMp4Extractor implements Extractor {
   /**
    * Factory that returns one extractor which is a {@link FragmentedMp4Extractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new FragmentedMp4Extractor()};
     }
 
-  }
+  };
 
   private static final String TAG = "FragmentedMp4Extractor";
   private static final int SAMPLE_GROUP_TYPE_seig = Util.getIntegerCodeForString("seig");

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

@@ -45,14 +45,14 @@ public final class Mp4Extractor implements Extractor, SeekMap {
   /**
    * Factory that returns one extractor which is an {@link Mp4Extractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new Mp4Extractor()};
     }
 
-  }
+  };
 
   // Parser states.
   private static final int STATE_AFTER_SEEK = 0;

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

@@ -34,14 +34,14 @@ public class OggExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is an {@link OggExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new OggExtractor()};
     }
 
-  }
+  };
 
   private static final int MAX_VERIFICATION_BYTES = 8;
 

library/src/main/java/com/google/android/exoplayer2/extractor/ts/AdtsExtractor.java

@@ -37,14 +37,14 @@ public final class AdtsExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is an {@link AdtsExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new AdtsExtractor()};
     }
 
-  }
+  };
 
   private static final int MAX_PACKET_SIZE = 200;
   private static final int ID3_TAG = Util.getIntegerCodeForString("ID3");

library/src/main/java/com/google/android/exoplayer2/extractor/ts/PsExtractor.java

@@ -37,14 +37,14 @@ public final class PsExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is a {@link PsExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new PsExtractor()};
     }
 
-  }
+  };
 
   private static final int PACK_START_CODE = 0x000001BA;
   private static final int SYSTEM_HEADER_START_CODE = 0x000001BB;

library/src/main/java/com/google/android/exoplayer2/extractor/ts/TsExtractor.java

@@ -42,14 +42,14 @@ public final class TsExtractor implements Extractor {
   /**
    * Factory that returns one extractor which is a {@link TsExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new TsExtractor()};
     }
 
-  }
+  };
 
   public static final int WORKAROUND_ALLOW_NON_IDR_KEYFRAMES = 1;
   public static final int WORKAROUND_IGNORE_AAC_STREAM = 2;

library/src/main/java/com/google/android/exoplayer2/extractor/wav/WavExtractor.java

@@ -35,14 +35,14 @@ public final class WavExtractor implements Extractor, SeekMap {
   /**
    * Factory that returns one extractor which is a {@link WavExtractor}.
    */
-  public static final class Factory implements ExtractorsFactory {
+  public static final ExtractorsFactory FACTORY = new ExtractorsFactory() {
 
     @Override
     public Extractor[] createExtractors() {
       return new Extractor[] {new WavExtractor()};
     }
 
-  }
+  };
 
   /** Arbitrary maximum input size of 32KB, which is ~170ms of 16-bit stereo PCM audio at 48KHz. */
   private static final int MAX_INPUT_SIZE = 32 * 1024;