Refactor extractor

- Refactor info classes and extractors
- Reformat and fix indentation
- Organize packages and classes
- Rename variables/methods and fix regex
- Change the capitalization
- Add methods to playlist extractor

stream/VideoStream.java

@@ -0,0 +1,52 @@
+package org.schabi.newpipe.extractor.stream;
+
+import java.io.Serializable;
+
+/*
+ * Created by Christian Schabesberger on 04.03.16.
+ *
+ * Copyright (C) Christian Schabesberger 2016 <chris.schabesberger@mailbox.org>
+ * VideoStream.java is part of NewPipe.
+ *
+ * NewPipe is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * NewPipe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+public class VideoStream implements Serializable {
+    //url of the stream
+    public String url = "";
+    public int format = -1;
+    public String resolution = "";
+    public boolean isVideoOnly = false;
+
+    public VideoStream(String url, int format, String res) {
+        this(false, url, format, res);
+    }
+
+    public VideoStream(boolean isVideoOnly, String url, int format, String res) {
+        this.url = url;
+        this.format = format;
+        this.resolution = res;
+        this.isVideoOnly = isVideoOnly;
+    }
+
+    // reveals whether two streams are the same, but have different urls
+    public boolean equalStats(VideoStream cmp) {
+        return format == cmp.format && resolution.equals(cmp.resolution);
+    }
+
+    // reveals whether two streams are equal
+    public boolean equals(VideoStream cmp) {
+        return cmp != null && equalStats(cmp) && url.equals(cmp.url);
+    }
+}