Revert "Refactored Identifiers"

extractor/src/main/java/org/schabi/newpipe/extractor/Extractor.java

@@ -28,7 +28,7 @@ public abstract class Extractor {
     @Nullable
     private ContentCountry forcedContentCountry = null;
 
-    private boolean isPageFetched = false;
+    private boolean pageFetched = false;
     // called like this to prevent checkstyle errors about "hiding a field"
     private final Downloader downloader;
 
@@ -54,21 +54,21 @@ public LinkHandler getLinkHandler() {
      * @throws ExtractionException if the pages content is not understood
      */
     public void fetchPage() throws IOException, ExtractionException {
-        if (isPageFetched) {
+        if (pageFetched) {
             return;
         }
         onFetchPage(downloader);
-        isPageFetched = true;
+        pageFetched = true;
     }
 
     protected void assertPageFetched() {
-        if (!isPageFetched) {
+        if (!pageFetched) {
             throw new IllegalStateException("Page is not fetched. Make sure you call fetchPage()");
         }
     }
 
     protected boolean isPageFetched() {
-        return isPageFetched;
+        return pageFetched;
     }
 
     /**

extractor/src/main/java/org/schabi/newpipe/extractor/stream/AudioStream.java

@@ -35,7 +35,7 @@ public final class AudioStream extends Stream {
 
     // Fields for DASH
     private int itag = ITAG_NOT_AVAILABLE_OR_NOT_APPLICABLE;
-    private int bitRate;
+    private int bitrate;
     private int initStart;
     private int initEnd;
     private int indexStart;
@@ -351,7 +351,7 @@ private AudioStream(@Nonnull final String id,
             this.itagItem = itagItem;
             this.itag = itagItem.id;
             this.quality = itagItem.getQuality();
-            this.bitRate = itagItem.getBitrate();
+            this.bitrate = itagItem.getBitrate();
             this.initStart = itagItem.getInitStart();
             this.initEnd = itagItem.getInitEnd();
             this.indexStart = itagItem.getIndexStart();
@@ -369,8 +369,8 @@ private AudioStream(@Nonnull final String id,
      * {@inheritDoc}
      */
     @Override
-    public boolean areStatsEqual(final Stream cmp) {
-        return super.areStatsEqual(cmp) && cmp instanceof AudioStream
+    public boolean equalStats(final Stream cmp) {
+        return super.equalStats(cmp) && cmp instanceof AudioStream
                 && averageBitrate == ((AudioStream) cmp).averageBitrate
                 && Objects.equals(audioTrackId, ((AudioStream) cmp).audioTrackId)
                 && audioTrackType == ((AudioStream) cmp).audioTrackType
@@ -405,8 +405,8 @@ public int getItag() {
      *
      * @return the bitrate set from the {@link ItagItem} passed in the constructor of the stream.
      */
-    public int getBitRate() {
-        return bitRate;
+    public int getBitrate() {
+        return bitrate;
     }
 
     /**

extractor/src/main/java/org/schabi/newpipe/extractor/stream/Stream.java

@@ -74,7 +74,7 @@ public static boolean containSimilarStream(final Stream stream,
             return false;
         }
         for (final Stream cmpStream : streamList) {
-            if (stream.areStatsEqual(cmpStream)) {
+            if (stream.equalStats(cmpStream)) {
                 return true;
             }
         }
@@ -97,7 +97,7 @@ public static boolean containSimilarStream(final Stream stream,
      * @param other the stream object to be compared to this stream object
      * @return whether the stream have the same stats or not, based on the criteria above
      */
-    public boolean areStatsEqual(@Nullable final Stream other) {
+    public boolean equalStats(@Nullable final Stream other) {
         if (other == null || mediaFormat == null || other.mediaFormat == null) {
             return false;
         }

extractor/src/main/java/org/schabi/newpipe/extractor/stream/SubtitlesStream.java

@@ -265,8 +265,8 @@ public boolean isAutoGenerated() {
      * {@inheritDoc}
      */
     @Override
-    public boolean areStatsEqual(final Stream cmp) {
-        return super.areStatsEqual(cmp)
+    public boolean equalStats(final Stream cmp) {
+        return super.equalStats(cmp)
                 && cmp instanceof SubtitlesStream
                 && code.equals(((SubtitlesStream) cmp).code)
                 && autoGenerated == ((SubtitlesStream) cmp).autoGenerated;

extractor/src/main/java/org/schabi/newpipe/extractor/stream/VideoStream.java

@@ -326,8 +326,8 @@ private VideoStream(@Nonnull final String id,
      * {@inheritDoc}
      */
     @Override
-    public boolean areStatsEqual(final Stream cmp) {
-        return super.areStatsEqual(cmp)
+    public boolean equalStats(final Stream cmp) {
+        return super.equalStats(cmp)
                 && cmp instanceof VideoStream
                 && resolution.equals(((VideoStream) cmp).resolution)
                 && isVideoOnly == ((VideoStream) cmp).isVideoOnly;