Update to gradle

1 files changed, 73 insertions, 0 deletions

diff --git a/app/src/main/java/github/daneren2005/dsub/util/tags/BastpUtil.java b/app/src/main/java/github/daneren2005/dsub/util/tags/BastpUtil.java
new file mode 100644
index 00000000..7ff517fd
--- /dev/null
+++ b/app/src/main/java/github/daneren2005/dsub/util/tags/BastpUtil.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2013 Adrian Ulrich <adrian@blinkenlights.ch>
+ *
+ * This program 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.
+ *
+ * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. 
+ */
+ 
+package github.daneren2005.dsub.util.tags;
+
+import android.support.v4.util.LruCache;
+import java.util.HashMap;
+import java.util.Vector;
+
+public final class BastpUtil {
+	private static final RGLruCache rgCache = new RGLruCache(16);
+
+	/** Returns the ReplayGain values of 'path' as <track,album>
+	 */
+	public static float[] getReplayGainValues(String path) {
+		float[] cached = rgCache.get(path);
+
+		if(cached == null) {
+			cached = getReplayGainValuesFromFile(path);
+			rgCache.put(path, cached);
+		}
+		return cached;
+	}
+	
+	
+	
+	/** Parse given file and return track,album replay gain values
+	 */
+	private static float[] getReplayGainValuesFromFile(String path) {
+		String[] keys = { "REPLAYGAIN_TRACK_GAIN", "REPLAYGAIN_ALBUM_GAIN" };
+		float[] adjust= { 0f                     , 0f                      };
+		HashMap tags  = (new Bastp()).getTags(path);
+		
+		for (int i=0; i<keys.length; i++) {
+			String curKey = keys[i];
+			if(tags.containsKey(curKey)) {
+				String rg_raw = (String)((Vector)tags.get(curKey)).get(0);
+				String rg_numonly = "";
+				float rg_float = 0f;
+				try {
+					String nums = rg_raw.replaceAll("[^0-9.-]","");
+					rg_float = Float.parseFloat(nums);
+				} catch(Exception e) {}
+				adjust[i] = rg_float;
+			}
+		}
+		return adjust;
+	}
+	
+	/** LRU cache for ReplayGain values
+	 */
+	private static class RGLruCache extends LruCache<String, float[]> {
+		public RGLruCache(int size) {
+			super(size);
+		}
+	}
+
+}
+