Some ID3 bug fixes

demo/src/main/java/com/google/android/exoplayer2/demo/EventLogger.java

@@ -35,6 +35,7 @@ import com.google.android.exoplayer2.metadata.id3.GeobFrame;
 import com.google.android.exoplayer2.metadata.id3.Id3Frame;
 import com.google.android.exoplayer2.metadata.id3.PrivFrame;
 import com.google.android.exoplayer2.metadata.id3.TextInformationFrame;
+import com.google.android.exoplayer2.metadata.id3.UrlLinkFrame;
 import com.google.android.exoplayer2.source.AdaptiveMediaSourceEventListener;
 import com.google.android.exoplayer2.source.ExtractorMediaSource;
 import com.google.android.exoplayer2.source.TrackGroup;
@@ -362,6 +363,9 @@ import java.util.Locale;
         TextInformationFrame textInformationFrame = (TextInformationFrame) entry;
         Log.d(TAG, prefix + String.format("%s: value=%s", textInformationFrame.id,
             textInformationFrame.value));
+      } else if (entry instanceof UrlLinkFrame) {
+        UrlLinkFrame urlLinkFrame = (UrlLinkFrame) entry;
+        Log.d(TAG, prefix + String.format("%s: url=%s", urlLinkFrame.id, urlLinkFrame.url));
       } else if (entry instanceof PrivFrame) {
         PrivFrame privFrame = (PrivFrame) entry;
         Log.d(TAG, prefix + String.format("%s: owner=%s", privFrame.id, privFrame.owner));
@@ -375,7 +379,7 @@ import java.util.Locale;
             apicFrame.id, apicFrame.mimeType, apicFrame.description));
       } else if (entry instanceof CommentFrame) {
         CommentFrame commentFrame = (CommentFrame) entry;
-        Log.d(TAG, prefix + String.format("%s: language=%s description=%s", commentFrame.id,
+        Log.d(TAG, prefix + String.format("%s: language=%s, description=%s", commentFrame.id,
             commentFrame.language, commentFrame.description));
       } else if (entry instanceof Id3Frame) {
         Id3Frame id3Frame = (Id3Frame) entry;

library/src/main/java/com/google/android/exoplayer2/metadata/id3/Id3Decoder.java

@@ -382,7 +382,7 @@ public final class Id3Decoder implements MetadataDecoder {
     String url;
     int urlStartIndex = descriptionEndIndex + delimiterLength(encoding);
     if (urlStartIndex < data.length) {
-      int urlEndIndex = indexOfZeroByte(data, 0);
+      int urlEndIndex = indexOfZeroByte(data, urlStartIndex);
       url = new String(data, urlStartIndex, urlEndIndex - urlStartIndex, "ISO-8859-1");
     } else {
       url = "";
@@ -521,10 +521,10 @@ public final class Id3Decoder implements MetadataDecoder {
         "ISO-8859-1");
     id3Data.setPosition(chapterIdEndIndex + 1);
 
-    int startTime = id3Data.readUnsignedByte();
-    int endTime = id3Data.readUnsignedByte();
-    int startOffset = id3Data.readUnsignedByte();
-    int endOffset = id3Data.readUnsignedByte();
+    int startTime = id3Data.readInt();
+    int endTime = id3Data.readInt();
+    int startOffset = id3Data.readInt();
+    int endOffset = id3Data.readInt();
 
     ArrayList<Id3Frame> subFrames = new ArrayList<>();
     int limit = framePosition + frameSize;