/// <summary>
/// Initializes a new instance of the <see cref="FileSegment"/> class.
/// Allow specifying an absolutely aligned (to the nearest minute) file segment.
/// Implies `FileDateBehavior.Required`.
/// NOTE: Start offset will be set to start of file, and end offset set to the end of the file.
/// </summary>
public FileSegment(
FileInfo source,
TimeAlignment alignment,
IAudioUtility utility = null,
FileDateBehavior dateBehavior = FileDateBehavior.Try)
{
Contract.Requires(source != null);
if (alignment != TimeAlignment.None)
{
Contract.Requires(
dateBehavior == FileDateBehavior.Required,
"If TimeAlignment is required, a date must be required in the filename");
}
this.dateBehavior = dateBehavior;
this.Source = source;
this.Alignment = alignment;
var fileDate = this.ParseDate(null);
var info = (utility ?? DefaultMasterAudioUtility).Info(source);
var basename = Path.GetFileNameWithoutExtension(this.Source.Name);
this.SourceMetadata = new SourceMetadata(info.Duration.Value, info.SampleRate.Value, basename, fileDate);
Contract.Ensures(this.Validate(), "FileSegment did not validate");
}
/// <summary>
/// Initializes a new instance of the <see cref="FileSegment"/> class.
/// Use this constructor if you know all the information about a segment beforehand (except for the date it was created).
/// </summary>
public FileSegment(FileInfo source, int sampleRate, TimeSpan duration, FileDateBehavior dateBehavior)
{
// when we should know everything about the file, we don't want to try and parse the date again...
// we either picked it up the first time or it is not available
this.dateBehavior = dateBehavior;
this.Source = source;
var basename = Path.GetFileNameWithoutExtension(this.Source.Name);
var fileDate = this.ParseDate(null);
this.SourceMetadata = new SourceMetadata(duration, sampleRate, basename, fileDate);
this.Alignment = TimeAlignment.None;
Contract.Ensures(this.Validate(), "FileSegment did not validate");
}
public FileSegment(
FileInfo source,
DateTimeOffset startDate,
IAudioUtility utility = null)
{
Contract.Requires(source != null);
this.dateBehavior = FileDateBehavior.Required;
this.Source = source;
this.Alignment = TimeAlignment.None;
var fileDate = this.ParseDate(startDate);
var info = (utility ?? DefaultMasterAudioUtility).Info(source);
var basename = Path.GetFileNameWithoutExtension(this.Source.Name);
this.SourceMetadata = new SourceMetadata(info.Duration.Value, info.SampleRate.Value, basename, fileDate);
Contract.Ensures(this.Validate(), "FileSegment did not validate");
}