Continue setting up Content description framework.

Issue #252 Set up WindContent class to determine content of different kinds of wind sound. Set up a loop to cycle through the minutes of acoustic spectral indices.

src/AudioAnalysisTools/AudioAnalysisTools.csproj

@@ -242,6 +242,7 @@
     <Compile Include="BirdClefExperiment1.cs" />
     <Compile Include="ChannelIntegrity.cs" />
     <Compile Include="ContentDescriptionTools\ContentDescription.cs" />
+    <Compile Include="ContentDescriptionTools\WindContent.cs" />
     <Compile Include="CrossCorrelation.cs" />
     <Compile Include="DSP\Clipping.cs" />
     <Compile Include="DSP\DSP_Filters.cs" />

src/AudioAnalysisTools/ContentDescriptionTools/ContentDescription.cs

@@ -136,10 +136,37 @@ public static double[] AnalyseMinutes(Dictionary<string, double[,]> dictionary)
         {
             int rowCount = dictionary[ContentDescription.IndexNames[0]].GetLength(0);
             int freqBinCount = dictionary[ContentDescription.IndexNames[0]].GetLength(1);
+
+            // over all rows assuming one minute per row.
+            for (int i = 0; i < rowCount; i++)
+            {
+                var oneMinuteOfIndices = GetIndicesForOneMinute(dictionary, i);
+
+                // now send indices to various content searches
+                var windScores = WindContent.GetStrongWindContent(oneMinuteOfIndices);
+            }
+
             var scores = new double[rowCount];
             return scores;
         }
 
+        public static Dictionary<string, double[]> GetIndicesForOneMinute(Dictionary<string, double[,]> allIndices, int rowId)
+        {
+            var opIndices = new Dictionary<string, double[]>();
+
+            var keys = allIndices.Keys;
+            foreach (string key in keys)
+            {
+                var success = allIndices.TryGetValue(key, out double[,] matrix);
+                if (success)
+                {
+                    opIndices.Add(key, MatrixTools.GetRow(matrix, rowId));
+                }
+            }
+
+            return opIndices;
+        }
+
         public static void DrawNormalisedIndexMatrices(DirectoryInfo dir, string baseName, Dictionary<string, double[,]> dictionary)
         {
             var list = new List<Image>();

src/AudioAnalysisTools/ContentDescriptionTools/WindContent.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace AudioAnalysisTools.ContentDescriptionTools
+{
+    using TowseyLibrary;
+
+    public static class WindContent
+    {
+
+        public static double GetStrongWindContent(Dictionary<string, double[]> oneMinuteOfIndices)
+        {
+            var rn = new RandomNumber();
+            var score = rn.GetDouble();
+            return score;
+        }
+    }
+}