public void FindWorksForAbolsutePath()
{
var realConfig = PathHelper.ResolveConfigFile("IndexPropertiesConfig.yml");
var parentConfig = new IndexCalculateConfig()
{
IndexPropertiesConfig = realConfig.FullName,
};
Assert.AreEqual(realConfig.FullName, IndexProperties.Find(parentConfig).FullName);
// and test direct
Assert.AreEqual(realConfig.FullName, IndexProperties.Find(realConfig.FullName, null).FullName);
}
public void FindWorksForRelativePath()
{
var parentConfigPath = PathHelper.ResolveConfigFile("Towsey.Acoustic.yml");
var realConfig = PathHelper.ResolveConfigFile("IndexPropertiesConfig.yml");
var parentConfig = new IndexCalculateConfig()
{
IndexPropertiesConfig = realConfig.Name,
ConfigPath = parentConfigPath.FullName,
};
Assert.AreEqual(realConfig.FullName, IndexProperties.Find(parentConfig).FullName);
// and test direct
Assert.AreEqual(realConfig.FullName, IndexProperties.Find(realConfig.Name, parentConfigPath).FullName);
}
public void FindReturnsNullOnGivenEmpty()
{
var emptyConfig = new IndexCalculateConfig()
{
IndexPropertiesConfig = string.Empty,
};
Assert.IsNull(IndexProperties.Find(emptyConfig));
AnalyzerConfig genericConfig = new AcousticIndices.AcousticIndicesConfig()
{
IndexPropertiesConfig = string.Empty,
};
Assert.IsNull(IndexProperties.Find(genericConfig as IIndexPropertyReferenceConfiguration));
// and test direct
Assert.IsNull(IndexProperties.Find(string.Empty, null));
}
public void FindFailsWithConfigFileErrorForMissing()
{
var parentConfigPath = PathHelper.ResolveConfigFile("Towsey.Acoustic.yml");
var nonExisting = "blahblahblah.yml";
var parentConfig = new IndexCalculateConfig()
{
IndexPropertiesConfig = nonExisting,
ConfigPath = parentConfigPath.FullName,
};
Assert.ThrowsException <ConfigFileException>(
() => IndexProperties.Find(parentConfig),
$"The specified config file ({nonExisting}) could not be found");
// and test direct
Assert.ThrowsException <ConfigFileException>(
() => IndexProperties.Find(nonExisting, parentConfigPath),
$"The specified config file ({nonExisting}) could not be found");
}
public void FindReturnsNullOnGivenNull()
{
var nullConfig = new IndexCalculateConfig()
{
IndexPropertiesConfig = null,
};
Assert.IsNull(IndexProperties.Find(nullConfig));
var genericConfig = new AnalyzerConfig()
{
// property does not exist
//IndexPropertiesConfig = string.Empty,
};
Assert.IsNull(IndexProperties.Find(genericConfig as IIndexPropertyReferenceConfiguration));
// and test direct
Assert.IsNull(IndexProperties.Find((string)null, null));
}
public static IndexCalculateResult[] CalculateIndicesInSubsegments(
AudioRecording recording,
TimeSpan segmentStartOffset,
TimeSpan segmentDuration,
TimeSpan indexCalculationDuration,
Dictionary <string, IndexProperties> indexProperties,
int sampleRateOfOriginalAudioFile,
IndexCalculateConfig config)
{
if (recording.WavReader.Channels > 1)
{
throw new InvalidOperationException(
@"A multi-channel recording MUST be mixed down to MONO before calculating acoustic indices!");
}
double recordingDuration = recording.Duration.TotalSeconds;
double subsegmentDuration = indexCalculationDuration.TotalSeconds;
// intentional possible null ref, throw if not null
double segmentDurationSeconds = segmentDuration.TotalSeconds;
double audioCuttingError = subsegmentDuration - segmentDurationSeconds;
// using the expected duration, each call to analyze will always produce the same number of results
// round, we expect perfect numbers, warn if not
double subsegmentsInSegment = segmentDurationSeconds / subsegmentDuration;
int subsegmentCount = (int)Math.Round(segmentDurationSeconds / subsegmentDuration);
const double warningThreshold = 0.01; // 1%
double fraction = subsegmentsInSegment - subsegmentCount;
if (Math.Abs(fraction) > warningThreshold)
{
Log.Warn(
string.Format(
"The IndexCalculationDuration ({0}) does not fit well into the provided segment ({1}). This means a partial result has been {3}, {2} results will be calculated",
subsegmentDuration,
segmentDurationSeconds,
subsegmentCount,
fraction >= 0.5 ? "added" : "removed"));
}
Log.Trace(subsegmentCount + " sub segments will be calculated");
var indexCalculateResults = new IndexCalculateResult[subsegmentCount];
// calculate indices for each subsegment
for (int i = 0; i < subsegmentCount; i++)
{
var subsegmentOffset = segmentStartOffset + TimeSpan.FromSeconds(i * subsegmentDuration);
var indexCalculateResult = IndexCalculate.Analysis(
recording,
subsegmentOffset,
indexProperties,
sampleRateOfOriginalAudioFile,
segmentStartOffset,
config);
indexCalculateResults[i] = indexCalculateResult;
}
return(indexCalculateResults);
}
