public static void Execute(Arguments arguments)
{
if (arguments == null)
{
throw new NoDeveloperMethodException();
}
string date = "# DATE AND TIME: " + DateTime.Now;
LoggedConsole.WriteLine("# DRAW LONG DURATION SPECTROGRAMS DERIVED FROM CSV FILES OF SPECTRAL INDICES OBTAINED FROM AN AUDIO RECORDING");
LoggedConsole.WriteLine(date);
LoggedConsole.WriteLine("# Spectrogram Config file: " + arguments.FalseColourSpectrogramConfig);
LoggedConsole.WriteLine("# Index Properties Config file: " + arguments.IndexPropertiesConfig);
LoggedConsole.WriteLine();
(FileInfo indexGenerationDataFile, FileInfo indexDistributionsFile) =
ZoomParameters.CheckNeededFilesExist(arguments.InputDataDirectory.ToDirectoryInfo());
var indexGenerationData = Json.Deserialize <IndexGenerationData>(indexGenerationDataFile);
// spectral distribution statistics is required only when calcualting difference spectrograms.
Dictionary <string, IndexDistributions.SpectralStats> indexDistributionsData = null;
if (indexDistributionsFile != null && indexDistributionsFile.Exists)
{
indexDistributionsData = IndexDistributions.Deserialize(indexDistributionsFile);
}
// this config can be found in IndexGenerationData. If config argument not specified, simply take it from icd file
LdSpectrogramConfig config;
if (arguments.FalseColourSpectrogramConfig == null)
{
config = indexGenerationData.LongDurationSpectrogramConfig;
}
else
{
config = LdSpectrogramConfig.ReadYamlToConfig(arguments.FalseColourSpectrogramConfig.ToFileInfo());
}
FilenameHelpers.ParseAnalysisFileName(indexGenerationDataFile, out var originalBaseName, out var _, out var _);
// CHECK FOR ERROR SEGMENTS - get zero signal array
var input = arguments.InputDataDirectory.ToDirectoryInfo();
var csvFile = new FileInfo(Path.Combine(input.FullName, originalBaseName + "__Towsey.Acoustic.Indices.csv"));
//Dictionary<string, double[]> summaryIndices = CsvTools.ReadCSVFile2Dictionary(csvFile.FullName);
//var summaryIndices = Csv.ReadFromCsv<Dictionary<string, double[]>>(csvFile);
var summaryIndices = Csv.ReadFromCsv <SummaryIndexValues>(csvFile);
var indexErrors = GapsAndJoins.DataIntegrityCheckForZeroSignal(summaryIndices);
//config.IndexCalculationDuration = TimeSpan.FromSeconds(1.0);
//config.XAxisTicInterval = TimeSpan.FromSeconds(60.0);
//config.IndexCalculationDuration = TimeSpan.FromSeconds(60.0);
//config.XAxisTicInterval = TimeSpan.FromSeconds(3600.0);
LDSpectrogramRGB.DrawSpectrogramsFromSpectralIndices(
inputDirectory: input,
outputDirectory: arguments.OutputDirectory.ToDirectoryInfo(),
ldSpectrogramConfig: config,
indexPropertiesConfigPath: arguments.IndexPropertiesConfig.ToFileInfo(),
indexGenerationData: indexGenerationData,
basename: originalBaseName,
analysisType: AcousticIndices.TowseyAcoustic,
indexSpectrograms: null,
indexStatistics: indexDistributionsData,
segmentErrors: indexErrors,
imageChrome: false.ToImageChrome());
Log.Success("Draw Long Duration Spectrograms complete!");
}
public static void DrawStackOfZoomedSpectrograms(
DirectoryInfo inputDirectory,
DirectoryInfo outputDirectory,
AnalysisIoInputDirectory io,
ZoomParameters common,
string analysisTag,
TimeSpan focalTime,
int imageWidth)
{
var zoomConfig = common.SpectrogramZoomingConfig;
LdSpectrogramConfig ldsConfig = common.SpectrogramZoomingConfig.LdSpectrogramConfig;
//var distributions = common.IndexDistributions;
string fileStem = common.OriginalBasename;
var indexGeneration = common.IndexGenerationData;
TimeSpan dataScale = indexGeneration.IndexCalculationDuration;
// ####################### DERIVE ZOOMED OUT SPECTROGRAMS FROM SPECTRAL INDICES
//var indexGenerationData = common.IndexGenerationData;
var indexProperties = zoomConfig.IndexProperties;
var(spectra, filteredIndexProperties) = ZoomCommon.LoadSpectra(io, analysisTag, fileStem, zoomConfig.LdSpectrogramConfig, indexProperties);
Stopwatch sw = Stopwatch.StartNew();
// Set the default time-scales in seconds per pixel.
// These were changed on 3rd April 2019 to better match those in the current zooming config file.
double[] imageScales = { 60, 30, 15, 7.5, 3.2, 1.6, 0.8, 0.4, 0.2 };
if (zoomConfig.SpectralIndexScale != null)
{
imageScales = zoomConfig.SpectralIndexScale;
}
sw = Stopwatch.StartNew();
int scaleCount = imageScales.Length;
var imageList = new List <Image <Rgb24> >();
for (int i = 0; i < scaleCount; i++)
{
var imageScale = TimeSpan.FromSeconds(imageScales[i]);
var image = DrawIndexSpectrogramAtScale(ldsConfig, indexGeneration, filteredIndexProperties, focalTime, dataScale, imageScale, imageWidth, spectra, fileStem);
if (image != null)
{
imageList.Add(image);
string name = $"{fileStem}_FocalZoom_min{focalTime.TotalMinutes:f1}_scale{imageScales[i]}.png";
image.Save(Path.Combine(outputDirectory.FullName, name));
}
}
sw.Stop();
LoggedConsole.WriteLine("Finished spectrograms derived from spectral indices. Elapsed time = " + sw.Elapsed.TotalSeconds + " seconds");
// NOTE: The following code is deprecated. It was originally developed to provide some intermediate steps between the hi-resolution false-colour spectrograms
// and the standard grey scale spectrograms.
// ####################### DERIVE ZOOMED IN SPECTROGRAMS FROM STANDARD SPECTRAL FRAMES
/*
* int[] compressionFactor = { 8, 4, 2, 1 };
* int compressionCount = compressionFactor.Length;
* sw = Stopwatch.StartNew();
* double frameStepInSeconds = indexGeneration.FrameStep / (double)indexGeneration.SampleRateResampled;
* TimeSpan frameScale = TimeSpan.FromTicks((long)Math.Round(frameStepInSeconds * 10000000));
* if (zoomConfig.SpectralFrameScale != null)
* {
* imageScales = zoomConfig.SpectralFrameScale;
*
* // TODO: CONVERT IMAGE scales into Compression factors.
* compressionCount = imageScales.Length;
* compressionFactor = new int[compressionCount];
* compressionFactor[compressionCount - 1] = 1;
* double denom = imageScales[compressionCount - 1];
*
* for (int i = 0; i < compressionCount - 1; i++)
* {
* compressionFactor[i] = (int)Math.Round(imageScales[i] / denom);
* }
* }
*
* int maxCompression = compressionFactor[0];
* TimeSpan maxImageDuration = TimeSpan.FromTicks(maxCompression * imageWidth * frameScale.Ticks);
*
* TimeSpan halfMaxImageDuration = TimeSpan.FromMilliseconds(maxImageDuration.TotalMilliseconds / 2);
* TimeSpan startTimeOfMaxImage = TimeSpan.Zero;
* if (focalTime != TimeSpan.Zero)
* {
* startTimeOfMaxImage = focalTime - halfMaxImageDuration;
* }
*
* TimeSpan startTimeOfData = TimeSpan.FromMinutes(Math.Floor(startTimeOfMaxImage.TotalMinutes));
*
* List<double[]> frameData = ReadFrameData(inputDirectory, fileStem, startTimeOfMaxImage, maxImageDuration, zoomConfig, indexGeneration.MaximumSegmentDuration.Value);
*
* // get the index data to add into the
* // TimeSpan imageScale1 = TimeSpan.FromSeconds(0.1);
* double[,] indexData = spectra["PMN"];
*
* // make the images
* for (int i = 0; i < compressionCount; i++)
* {
* int factor = compressionFactor[i];
* var image = DrawFrameSpectrogramAtScale(ldsConfig, indexGeneration, startTimeOfData, factor, frameData, indexData, focalTime, frameScale, imageWidth);
* if (image != null)
* {
* imageList.Add(image);
* }
* }
*
* sw.Stop();
* LoggedConsole.WriteLine("Finished spectrograms derived from standard frames. Elapsed time = " + sw.Elapsed.TotalSeconds + " seconds");
*/
// combine the images into a stack
var combinedImage = ImageTools.CombineImagesVertically(imageList);
string fileName = $"{fileStem}_FocalZOOM_min{focalTime.TotalMinutes:f1}.png";
combinedImage.Save(Path.Combine(outputDirectory.FullName, fileName));
}
/// <summary>
/// HERVE GLOTIN
/// Combined audio2csv + zooming spectrogram task.
/// This is used to analyse Herve Glotin's BIRD50 data set.
/// ############################# IMPORTANT ########################################
/// In order to analyse the short recordings in BIRD50 dataset, need following change to code:
/// need to modify AudioAnalysis.AnalysisPrograms.AcousticIndices.cs #line648
/// need to change AnalysisMinSegmentDuration = TimeSpan.FromSeconds(20),
/// to AnalysisMinSegmentDuration = TimeSpan.FromSeconds(1),
/// THIS iS to analyse BIRD50 short recordings.
/// </summary>
public static void HiRes1()
{
string recordingPath = @"C:\SensorNetworks\WavFiles\TestRecordings\TEST_7min_artificial.wav";
//// HERVE GLOTIN BIRD50 TRAINING RECORDINGS
//DirectoryInfo dataDir = new DirectoryInfo(@"D:\SensorNetworks\WavFiles\Glotin\Bird50\AmazonBird50_training_input");
//string parentDir = @"C:\SensorNetworks\Output\BIRD50";
//string speciesLabelsFile = parentDir + @"\AmazonBird50_training_output.csv";
//int speciesCount = 50;
//////set file name format -depends on train or test. E.g. "ID0003";
//string fileStemFormatString = "ID{0:d4}"; // for training files
//string indexPropertiesConfig = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\IndexPropertiesConfigHiRes.yml";
//string learningMode = "Train";
//// HERVE GLOTIN BIRD50 TESTING RECORDINGS
DirectoryInfo dataDir = new DirectoryInfo(@"D:\SensorNetworks\WavFiles\Glotin\Bird50\AmazonBird50_testing_input");
string parentDir = @"C:\SensorNetworks\Output\BIRD50";
string speciesLabelsFile = null;
int speciesCount = 50;
////set file name format -depends on train or test. E.g. "ID0003";
string fileStemFormatString = "ID1{0:d3}"; // for testing files
string indexPropertiesConfig = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\IndexPropertiesConfigHiRes.yml";
string learningMode = "Test";
// HERVE GLOTIN BOMBYX WHALE RECORDINGS
//DirectoryInfo dataDir = new DirectoryInfo(@"C:\SensorNetworks\WavFiles\WhaleFromGlotin");
//string parentDir = @"C:\SensorNetworks\Output\Glotin\Bombyx_SpermWhales";
//string speciesLabelsFile = null;
//int speciesCount = 0;
//////set file name format -depends on train or test. E.g. "ID0003";
//string fileStemFormatString = null;
////string fileStemFormatString = "ID1{0:d3}"; // for testing files
//string indexPropertiesConfig = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\IndexPropertiesConfigHiResGianniPavan.yml";
//string learningMode = "Train";
// GIANNI PAVAN SASSAFRAS RECORDINGS
//DirectoryInfo dataDir = new DirectoryInfo(@"C:\SensorNetworks\WavFiles\GianniPavan\SABIOD - TEST SASSOFRATINO");
//string parentDir = @"C:\SensorNetworks\Output\GianniPavan";
//string speciesLabelsFile = null;
//int speciesCount = 0;
//string fileStemFormatString = null;
//string indexPropertiesConfig = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\IndexPropertiesConfigHiResGianniPavan.yml";
//string learningMode = "Train";
// ######################################################################
string outputDir = parentDir + @"\" + learningMode;
string imageOutputDir = parentDir + @"\" + learningMode + "Images";
string csvDir = outputDir + @"\Towsey.Acoustic";
string zoomOutputDir = outputDir;
string audio2csvConfigPath = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\Towsey.AcousticHiRes.yml";
string hiResZoomConfigPath = @"C:\Work\GitHub\audio-analysis\AudioAnalysis\AnalysisConfigFiles\SpectrogramHiResConfig.yml";
FileInfo[] wavFiles = { new FileInfo(recordingPath) };
// comment next two lines when debugging a single recording file
string match = @"*.wav";
wavFiles = dataDir.GetFiles(match, SearchOption.AllDirectories);
// READ IN THE SPECIES LABELS FILE AND SET UP THE DATA
string[] fileID = new string[wavFiles.Length];
int[] speciesID = new int[speciesCount];
if (speciesLabelsFile != null)
{
BirdClefExperiment1.ReadGlotinsSpeciesLabelFile(speciesLabelsFile, wavFiles.Length, out fileID, out speciesID);
}
else // make seperate species name for each file
{
speciesID = new int[wavFiles.Length];
}
//LOOP THROUGH ALL WAV FILES
//for (int i = 538; i < 539; i++)
//for (int i = 0; i < 8; i++)
for (int i = 0; i < wavFiles.Length; i++)
{
FileInfo file = wavFiles[i];
recordingPath = file.FullName;
string idName = Path.GetFileNameWithoutExtension(file.FullName);
string name = string.Format("{0}_Species{1:d2}", idName, speciesID[i]);
outputDir = parentDir + @"\" + learningMode + @"\" + name;
csvDir = parentDir + @"\" + learningMode + @"\" + name + @"\Towsey.Acoustic";
zoomOutputDir = outputDir;
Console.WriteLine("\n\n");
Console.WriteLine($@">>>>{i}: File<{name}>");
try
{
// A: analyse the recording files == audio2csv.
var audio2csvArguments = new AnalyseLongRecordings.AnalyseLongRecording.Arguments
{
Source = recordingPath.ToFileInfo(),
Config = audio2csvConfigPath,
Output = outputDir.ToDirectoryInfo(),
};
if (!audio2csvArguments.Source.Exists)
{
LoggedConsole.WriteWarnLine(" >>>>>>>>>>>> WARNING! The Source Recording file cannot be found! This will cause an exception.");
}
if (!File.Exists(audio2csvArguments.Config))
{
LoggedConsole.WriteWarnLine(" >>>>>>>>>>>> WARNING! The Configuration file cannot be found! This will cause an exception.");
}
AnalyseLongRecordings.AnalyseLongRecording.Execute(audio2csvArguments);
// B: Concatenate the summary indices and produce images
// Use the Zoomingspectrograms action.
// need to find out how long the recording is.
string fileName = audio2csvArguments.Source.BaseName();
string testFileName = fileName + @"__Towsey.Acoustic.ACI.csv";
List <string> data = FileTools.ReadTextFile(Path.Combine(csvDir, testFileName));
int lineCount = data.Count - 1; // -1 for header.
int imageWidth = lineCount;
//assume scale is index calculation duration = 0.1s
// i.e. image resolution 0.1s/px. or 600px/min
double focalMinute = (double)lineCount / 600 / 2;
if (focalMinute < 0.016666)
{
focalMinute = 0.016666; // shortest recording = 1 second.
}
var zoomingArguments = new DrawZoomingSpectrograms.Arguments
{
// use the default set of index properties in the AnalysisConfig directory.
SourceDirectory = csvDir,
Output = zoomOutputDir,
SpectrogramZoomingConfig = hiResZoomConfigPath,
// draw a focused multi-resolution pyramid of images
ZoomAction = DrawZoomingSpectrograms.Arguments.ZoomActionType.Focused,
};
LoggedConsole.WriteLine("# Spectrogram Zooming config : " + zoomingArguments.SpectrogramZoomingConfig);
LoggedConsole.WriteLine("# Input Directory : " + zoomingArguments.SourceDirectory);
LoggedConsole.WriteLine("# Output Directory : " + zoomingArguments.Output);
var common = new ZoomParameters(zoomingArguments.SourceDirectory.ToDirectoryEntry(), zoomingArguments.SpectrogramZoomingConfig.ToFileEntry(), false);
// Create directory if not exists
if (!Directory.Exists(zoomingArguments.Output))
{
Directory.CreateDirectory(zoomingArguments.Output);
}
ZoomFocusedSpectrograms.DrawStackOfZoomedSpectrograms(
zoomingArguments.SourceDirectory.ToDirectoryInfo(),
zoomingArguments.Output.ToDirectoryInfo(),
common,
TimeSpan.FromMinutes(focalMinute),
imageWidth,
AcousticIndices.TowseyAcoustic);
// DRAW THE VARIOUS IMAGES
string fileStem = fileName;
if (fileStemFormatString != null)
{
fileStem = string.Format(fileStemFormatString, i + 1); // training images
}
var ldfcSpectrogramArguments = new DrawLongDurationSpectrograms.Arguments
{
// use the default set of index properties in the AnalysisConfig directory.
InputDataDirectory = csvDir,
OutputDirectory = imageOutputDir,
IndexPropertiesConfig = indexPropertiesConfig,
};
// there are two possible tasks
// 1: draw the aggregated grey scale spectrograms
int secDuration = DrawLongDurationSpectrograms.DrawAggregatedSpectrograms(ldfcSpectrogramArguments, fileStem);
// 2: draw the coloured ridge spectrograms
secDuration = DrawLongDurationSpectrograms.DrawRidgeSpectrograms(ldfcSpectrogramArguments, fileStem);
// copy files
// POW, EVN, SPT, RHZ, RVT, RPS, RNG
string[] copyArray = { "POW", "EVN", "SPT", "RHZ", "RVT", "RPS", "RNG" };
DirectoryInfo sourceDirectory = new DirectoryInfo(csvDir);
string destinationDirectory = parentDir + @"\TrainingClassifier";
foreach (string key in copyArray)
{
// ID0002__Towsey.Acoustic.BGN.csv fileName += @"__Towsey.Acoustic.ACI.csv";
string sourceFileName = string.Format(idName + "__Towsey.Acoustic." + key + ".csv");
string sourcePath = Path.Combine(sourceDirectory.FullName, sourceFileName);
string nameOfParentDirectory = sourceDirectory.Parent.Name;
string destinationFileName = string.Format(nameOfParentDirectory + "." + key + ".csv");
string destinationPath = Path.Combine(destinationDirectory, destinationFileName);
File.Copy(sourcePath, destinationPath, true);
}
} // try block
catch (Exception e)
{
LoggedConsole.WriteErrorLine(string.Format("ERROR!!!!! RECORDING {0} FILE {1}", i, name));
LoggedConsole.WriteErrorLine(string.Format(e.ToString()));
}
} // end loop through all wav files
} // HiRes1()
public static void Execute(Arguments arguments)
{
if (arguments == null)
{
throw new NoDeveloperMethodException();
}
string description;
switch (arguments.ZoomAction)
{
case Arguments.ZoomActionType.Focused:
description =
"# DRAW STACK OF FOCUSED MULTI-SCALE LONG DURATION SPECTROGRAMS DERIVED FROM SPECTRAL INDICES.";
break;
case Arguments.ZoomActionType.Tile:
description =
"# DRAW ZOOMING SPECTROGRAMS DERIVED FROM SPECTRAL INDICES OBTAINED FROM AN AUDIO RECORDING";
break;
default:
throw new ArgumentOutOfRangeException();
}
LoggedConsole.WriteLine(description);
LoggedConsole.WriteLine("# Spectrogram Zooming config : " + arguments.SpectrogramZoomingConfig);
LoggedConsole.WriteLine("# Input Directory : " + arguments.SourceDirectory);
LoggedConsole.WriteLine("# Output Directory : " + arguments.Output);
var common = new ZoomParameters(
arguments.SourceDirectory.ToDirectoryEntry(),
arguments.SpectrogramZoomingConfig.ToFileEntry(),
!string.IsNullOrEmpty(arguments.OutputFormat));
LoggedConsole.WriteLine("# File name of recording : " + common.OriginalBasename);
// create file systems for reading input and writing output
var io = FileSystemProvider.GetInputOutputFileSystems(
arguments.SourceDirectory,
FileSystemProvider.MakePath(arguments.Output, common.OriginalBasename, arguments.OutputFormat, "Tiles"))
.EnsureInputIsDirectory();
switch (arguments.ZoomAction)
{
case Arguments.ZoomActionType.Focused:
// draw a focused multi-resolution pyramid of images
TimeSpan focalTime;
if (arguments.FocusMinute.HasValue)
{
focalTime = TimeSpan.FromMinutes(arguments.FocusMinute.Value);
}
else
{
throw new ArgumentException("FocusMinute is null, cannot proceed");
}
const int ImageWidth = 1500;
ZoomFocusedSpectrograms.DrawStackOfZoomedSpectrograms(
arguments.SourceDirectory.ToDirectoryInfo(),
arguments.Output.ToDirectoryInfo(),
common,
focalTime,
ImageWidth,
AcousticIndices.TowseyAcoustic);
break;
case Arguments.ZoomActionType.Tile:
// Create the super tiles for a full set of recordings
ZoomTiledSpectrograms.DrawTiles(
io,
common,
AcousticIndices.TowseyAcoustic);
break;
default:
Log.Warn("Other ZoomAction results in standard LD Spectrogram to be drawn");
// draw standard false color spectrograms - useful to check what spectrograms of the individual
// indices are like.
throw new NotImplementedException();
/*LDSpectrogramRGB.DrawSpectrogramsFromSpectralIndices(
* arguments.SourceDirectory,
* arguments.Output,
* arguments.SpectrogramConfigPath,
* arguments.IndexPropertiesConfig);*/
break;
}
}
public static void DrawStackOfZoomedSpectrograms(DirectoryInfo inputDirectory, DirectoryInfo outputDirectory, ZoomParameters common, TimeSpan focalTime, int imageWidth, string analysisType)
{
var zoomConfig = common.SpectrogramZoomingConfig;
LdSpectrogramConfig ldsConfig = common.SpectrogramZoomingConfig.LdSpectrogramConfig;
var distributions = common.IndexDistributions;
var indexGeneration = common.IndexGenerationData;
string fileStem = common.OriginalBasename;
TimeSpan dataScale = indexGeneration.IndexCalculationDuration;
// ####################### DERIVE ZOOMED OUT SPECTROGRAMS FROM SPECTRAL INDICES
string[] keys = { "ACI", "BGN", "CVR", "DIF", "ENT", "EVN", "PMN", "POW", "RHZ", "RVT", "RPS", "RNG", "SUM", "SPT" };
var indexProperties = InitialiseIndexProperties.FilterIndexPropertiesForSpectralOnly(zoomConfig.IndexProperties);
Dictionary <string, double[, ]> spectra = IndexMatrices.ReadSpectralIndices(inputDirectory, fileStem, analysisType, keys);
Stopwatch sw = Stopwatch.StartNew();
// standard scales in seconds per pixel.
double[] imageScales = { 60, 24, 12, 6, 2, 1, 0.6, 0.2 };
if (zoomConfig.SpectralIndexScale != null)
{
imageScales = zoomConfig.SpectralIndexScale;
}
sw = Stopwatch.StartNew();
int scaleCount = imageScales.Length;
var imageList = new List <Image>();
for (int i = 0; i < scaleCount; i++)
{
var imageScale = TimeSpan.FromSeconds(imageScales[i]);
var image = DrawIndexSpectrogramAtScale(ldsConfig, indexGeneration, indexProperties, focalTime, dataScale, imageScale, imageWidth, spectra, fileStem);
if (image != null)
{
imageList.Add(image);
string name = $"{fileStem}_FocalZoom_min{focalTime.TotalMinutes:f1}_scale{imageScales[i]}.png";
image.Save(Path.Combine(outputDirectory.FullName, name));
}
}
sw.Stop();
LoggedConsole.WriteLine("Finished spectrograms derived from spectral indices. Elapsed time = " + sw.Elapsed.TotalSeconds + " seconds");
// ####################### DERIVE ZOOMED IN SPECTROGRAMS FROM STANDARD SPECTRAL FRAMES
int[] compressionFactor = { 8, 4, 2, 1 };
int compressionCount = compressionFactor.Length;
sw = Stopwatch.StartNew();
double frameStepInSeconds = indexGeneration.FrameStep / (double)indexGeneration.SampleRateResampled;
TimeSpan frameScale = TimeSpan.FromTicks((long)Math.Round(frameStepInSeconds * 10000000));
if (zoomConfig.SpectralFrameScale != null)
{
imageScales = zoomConfig.SpectralFrameScale;
// TODO: CONVERT IMAGE scales into Compression factors.
compressionCount = imageScales.Length;
compressionFactor = new int[compressionCount];
compressionFactor[compressionCount - 1] = 1;
double denom = imageScales[compressionCount - 1];
for (int i = 0; i < compressionCount - 1; i++)
{
compressionFactor[i] = (int)Math.Round(imageScales[i] / denom);
}
}
int maxCompression = compressionFactor[0];
TimeSpan maxImageDuration = TimeSpan.FromTicks(maxCompression * imageWidth * frameScale.Ticks);
TimeSpan halfMaxImageDuration = TimeSpan.FromMilliseconds(maxImageDuration.TotalMilliseconds / 2);
TimeSpan startTimeOfMaxImage = TimeSpan.Zero;
if (focalTime != TimeSpan.Zero)
{
startTimeOfMaxImage = focalTime - halfMaxImageDuration;
}
TimeSpan startTimeOfData = TimeSpan.FromMinutes(Math.Floor(startTimeOfMaxImage.TotalMinutes));
List <double[]> frameData = ReadFrameData(inputDirectory, fileStem, startTimeOfMaxImage, maxImageDuration, zoomConfig, indexGeneration.MaximumSegmentDuration.Value);
// get the index data to add into the
// TimeSpan imageScale1 = TimeSpan.FromSeconds(0.1);
double[,] indexData = spectra["POW"];
// make the images
for (int i = 0; i < compressionCount; i++)
{
int factor = compressionFactor[i];
var image = DrawFrameSpectrogramAtScale(ldsConfig, indexGeneration, startTimeOfData, factor, frameData, indexData, focalTime, frameScale, imageWidth);
if (image != null)
{
imageList.Add(image);
}
}
sw.Stop();
LoggedConsole.WriteLine("Finished spectrograms derived from standard frames. Elapsed time = " + sw.Elapsed.TotalSeconds + " seconds");
// combine the images into a stack
Image combinedImage = ImageTools.CombineImagesVertically(imageList);
string fileName = $"{fileStem}_FocalZOOM_min{focalTime.TotalMinutes:f1}.png";
combinedImage.Save(Path.Combine(outputDirectory.FullName, fileName));
}