/// <summary>
/// Set the duration of all entries. If a entry duration will overlap with the next entry and
/// overlaps are not allowed then the new end time will be one millisecond less than the next start time.
/// </summary>
/// <param name="subRipTimeSpan">Time span to set all entries duration to.</param>
/// <param name="doNotAllowOverlaps">Optional flag to indicate if end time should never overlap start time of next entry.</param>
public void SetAbsoluteDuration(SubRipTimeSpan subRipTimeSpan, bool doNotAllowOverlaps = false)
{
for (var i = 0; i < Entries.Count; i++)
{
var entry = Entries[i];
if (doNotAllowOverlaps)
{
var nextEntry = Entries.GetNext(i);
if (nextEntry == null)
{
// entry is last one
entry.Duration.End = entry.Duration.Start.Add(subRipTimeSpan);
}
else
{
var ts = entry.Duration.Start.Add(subRipTimeSpan);
if (ts > nextEntry.Duration.Start)
{
entry.Duration.End = nextEntry.Duration.Start.Subtract(new SubRipTimeSpan(0, 0, 0, 1));
}
else
{
entry.Duration.End = ts;
}
}
}
else
{
entry.Duration.End = entry.Duration.Start.Add(subRipTimeSpan);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="T:ByteDev.Subtitles.SubRip.SubRipDuration" /> class.
/// </summary>
/// <param name="start">Start time.</param>
/// <param name="end">End time.</param>
public SubRipDuration(SubRipTimeSpan start, SubRipTimeSpan end)
{
if (!IsValidStartAndEnd(start, end))
{
throw new ArgumentException("Start time was after end time.");
}
Start = start;
End = end;
}
/// <summary>
/// Sets the duration on any entries that are over the provided timespan.
/// </summary>
/// <param name="subRipTimeSpan">Time span to any entries duration to if over.</param>
public void SetMaxDuration(SubRipTimeSpan subRipTimeSpan)
{
foreach (var entry in Entries)
{
if (entry.Duration.TotalActiveTime > subRipTimeSpan)
{
entry.Duration.End = entry.Duration.Start.Add(subRipTimeSpan);
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="T:ByteDev.Subtitles.SubRip.SubRipDuration" /> class.
/// </summary>
/// <param name="duration">SubRip duration in string format: "HH:MM:SS,MMM --> HH:MM:SS,MMM".</param>
/// <exception cref="T:System.ArgumentException"><paramref name="duration" /> should be in format: "HH:MM:SS,MMM --> HH:MM:SS,MMM".</exception>
public SubRipDuration(string duration)
{
if (!IsValidDuration(duration))
{
throw new ArgumentException($"Duration string: '{duration}' is in invalid format.");
}
var start = new SubRipTimeSpan(duration.Substring(0, SubRipTimeSpan.ValidStringLength));
var end = new SubRipTimeSpan(duration.Substring(SubRipTimeSpan.ValidStringLength + TimeDelimiter.Length));
if (!IsValidStartAndEnd(start, end))
{
throw new ArgumentException("Start time was after end time.");
}
Start = start;
End = end;
}
private static bool IsValidStartAndEnd(SubRipTimeSpan start, SubRipTimeSpan end)
{
return(start.TotalMilliseconds <= end.TotalMilliseconds);
}
