public override void SummariseResults(
AnalysisSettings analysisSettings,
FileSegment inputFileSegment,
EventBase[] events,
SummaryIndexBase[] indices,
SpectralIndexBase[] spectralIndices,
AnalysisResult2[] results)
{
// below is example of how to access values in ContentDescription config file.
//sampleRate = analysisSettings.Configuration.GetIntOrNull(AnalysisKeys.ResampleRate) ?? sampleRate;
var cdConfiguration = (CdConfig)analysisSettings.Configuration;
var ldSpectrogramConfig = cdConfiguration.LdSpectrogramConfig;
//var cdConfigFile = analysisSettings.ConfigFile;
//var configDirectory = cdConfigFile.DirectoryName ?? throw new ArgumentNullException(nameof(cdConfigFile), "Null value");
var sourceAudio = inputFileSegment.Source;
string basename = Path.GetFileNameWithoutExtension(sourceAudio.Name);
var resultsDirectory = AnalysisCoordinator.GetNamedDirectory(analysisSettings.AnalysisOutputDirectory, this);
// check for null values - this was recommended by ReSharper!
if (inputFileSegment.TargetFileDuration == null || inputFileSegment.TargetFileSampleRate == null)
{
throw new NullReferenceException();
}
// output config data to disk so other analyzers can use the data,
// Should contain data only - i.e. the configuration settings that generated these indices
// this data can then be used by later analysis processes.
var indexConfigData = new IndexGenerationData()
{
RecordingExtension = inputFileSegment.Source.Extension,
RecordingBasename = basename,
RecordingStartDate = inputFileSegment.TargetFileStartDate,
RecordingDuration = inputFileSegment.TargetFileDuration.Value,
SampleRateOriginal = inputFileSegment.TargetFileSampleRate.Value,
SampleRateResampled = ContentSignatures.SampleRate,
FrameLength = ContentSignatures.FrameSize,
FrameStep = ContentSignatures.FrameSize,
IndexCalculationDuration = TimeSpan.FromSeconds(ContentSignatures.IndexCalculationDurationInSeconds),
BgNoiseNeighbourhood = TimeSpan.FromSeconds(5), // default value for content description
AnalysisStartOffset = inputFileSegment.SegmentStartOffset ?? TimeSpan.Zero,
MaximumSegmentDuration = analysisSettings.AnalysisMaxSegmentDuration,
BackgroundFilterCoeff = SpectrogramConstants.BACKGROUND_FILTER_COEFF,
LongDurationSpectrogramConfig = ldSpectrogramConfig,
};
var icdPath = FilenameHelpers.AnalysisResultPath(
resultsDirectory,
basename,
IndexGenerationData.FileNameFragment,
"json");
Json.Serialise(icdPath.ToFileInfo(), indexConfigData);
// gather spectra to form spectrograms. Assume same spectra in all analyzer results
var dictionaryOfSpectra = spectralIndices.ToTwoDimensionalArray(SpectralIndexValuesForContentDescription.CachedSelectors, TwoDimensionalArray.Rotate90ClockWise);
// Calculate the index distribution statistics and write to a json file. Also save as png image
// The following method returns var indexDistributions =, but we have no use for them.
IndexDistributions.WriteSpectralIndexDistributionStatistics(dictionaryOfSpectra, resultsDirectory, basename);
// Draw ldfc spectrograms and return path to 2maps image.
string ldfcSpectrogramPath =
DrawSpectrogramsFromSpectralIndices(
ldSpectrogramConfig,
outputDirectory: resultsDirectory,
indexGenerationData: indexConfigData,
basename: basename,
indexSpectrograms: dictionaryOfSpectra);
// Gather the content description results into an array of DescriptionResult and then convert to dictionary
var allContentDescriptionResults = results.Select(x => (DescriptionResult)x.MiscellaneousResults[nameof(DescriptionResult)]);
var contentDictionary = DataProcessing.ConvertResultsToDictionaryOfArrays(allContentDescriptionResults.ToList());
// Write the results to a csv file
var filePath = Path.Combine(resultsDirectory.FullName, "AcousticSignatures.csv");
// TODO: fix this so it writes header and a column of content description values.
//Csv.WriteToCsv(new FileInfo(filePath), contentDictionary);
FileTools.WriteDictionaryAsCsvFile(contentDictionary, filePath);
// prepare graphical plots of the acoustic signatures.
var contentPlots = GetPlots(contentDictionary);
var images = GraphsAndCharts.DrawPlotDistributions(contentPlots);
var plotsImage = ImageTools.CombineImagesVertically(images);
plotsImage.Save(Path.Combine(resultsDirectory.FullName, "DistributionsOfContentScores.png"));
// Attach content description plots to LDFC spectrogram and write to file
var ldfcSpectrogram = Image.Load <Rgb24>(ldfcSpectrogramPath);
var image = ContentVisualization.DrawLdfcSpectrogramWithContentScoreTracks(ldfcSpectrogram, contentPlots);
var path3 = Path.Combine(resultsDirectory.FullName, basename + ".ContentDescription.png");
image.Save(path3);
}
