Add SoundCloud service (#15)

Add SoundCloud service

services/soundcloud/SoundcloudStreamInfoItemExtractor.java

@@ -0,0 +1,60 @@
+package org.schabi.newpipe.extractor.services.soundcloud;
+
+import org.json.JSONObject;
+import org.schabi.newpipe.extractor.exceptions.ParsingException;
+import org.schabi.newpipe.extractor.stream.StreamInfoItemExtractor;
+import org.schabi.newpipe.extractor.stream.StreamType;
+
+public class SoundcloudStreamInfoItemExtractor implements StreamInfoItemExtractor {
+
+    private final JSONObject searchResult;
+
+    public SoundcloudStreamInfoItemExtractor(JSONObject searchResult) {
+        this.searchResult = searchResult;
+    }
+
+    @Override
+    public String getWebPageUrl() {
+        return searchResult.getString("permalink_url");
+    }
+
+    @Override
+    public String getTitle() {
+        return searchResult.getString("title");
+    }
+
+    @Override
+    public int getDuration() {
+        return searchResult.getInt("duration") / 1000;
+    }
+
+    @Override
+    public String getUploader() {
+        return searchResult.getJSONObject("user").getString("username");
+    }
+
+    @Override
+    public String getUploadDate() throws ParsingException {
+        return SoundcloudParsingHelper.toTimeAgoString(searchResult.getString("created_at"));
+    }
+
+    @Override
+    public long getViewCount() {
+        return searchResult.getLong("playback_count");
+    }
+
+    @Override
+    public String getThumbnailUrl() {
+        return searchResult.getString("artwork_url");
+    }
+
+    @Override
+    public StreamType getStreamType() {
+        return StreamType.AUDIO_STREAM;
+    }
+
+    @Override
+    public boolean isAd() {
+        return false;
+    }
+}