/// <summary>Adds a span to the collection.</summary>
/// <param name="span">The span to be added.</param>
/// <returns>The index of the added span.</returns>
public int Add(VideoSpan span)
{
if (span == null)
{
throw new ArgumentNullException("span");
}
return(base.InnerList.Add(span));
}
/// <summary>Removes a span from the collection.</summary>
/// <param name="span">The span to be removed.</param>
public void Remove(VideoSpan span)
{
base.InnerList.Remove(span);
}
/// <summary>Inserts a span into the collection at the specified index.</summary>
/// <param name="index">The index at which to insert the span.</param>
/// <param name="span">The span to be inserted.</param>
public void Insert(int index, VideoSpan span)
{
base.InnerList.Insert(index, span);
}
/// <summary>Copies the collection of spans to the specified array.</summary>
/// <param name="spans">The target array.</param>
/// <param name="arrayIndex">The starting index to which items should be copied.</param>
public void CopyTo(VideoSpan [] spans, int arrayIndex)
{
base.InnerList.CopyTo(spans, arrayIndex);
}
/// <summary>Adds a span to the collection.</summary>
/// <param name="span">The span to be added.</param>
/// <returns>The index of the added span.</returns>
public int Add(VideoSpan span)
{
if (span == null) throw new ArgumentNullException("span");
return base.InnerList.Add(span);
}
/// <summary>Inserts a span into the collection at the specified index.</summary>
/// <param name="index">The index at which to insert the span.</param>
/// <param name="span">The span to be inserted.</param>
public void Insert(int index, VideoSpan span)
{
base.InnerList.Insert(index, span);
}
/// <summary>Removes a span from the collection.</summary>
/// <param name="span">The span to be removed.</param>
public void Remove(VideoSpan span)
{
base.InnerList.Remove(span);
}
/// <summary>Splices together all of the spans.</summary>
/// <returns></returns>
protected override object DoWork()
{
IStreamBufferRecComp recComp = null;
Timer timer = null;
try
{
// Timer used for updating progress
timer = new Timer(new TimerCallback(HandleProgressUpdate), null, PollFrequency, PollFrequency);
// Create the RecComp and initialize it
recComp = (IStreamBufferRecComp)ClassId.CoCreateInstance(ClassId.RecComp);
if (File.Exists(_target.FullName))
{
File.Delete(_target.FullName);
}
recComp.Initialize(_target.FullName, _spans[0].File.FullName);
_recComp = recComp; // only valid during this call
// Add each span to the output file
FileInfo dvrTarget = _target;
for (int i = 0; i < _spans.Count; i++)
{
// If the user has requested cancellation, stop processing
if (CancellationPending)
{
break;
}
// Do the append
VideoSpan span = _spans[i];
ulong start = VideoSpan.SecondsToHundredNanoseconds(span.StartPosition);
ulong stop = VideoSpan.SecondsToHundredNanoseconds(span.StopPosition);
recComp.AppendEx(span.File.FullName, start, stop);
}
}
finally
{
// Clean up after the RecComp object and the timer
if (timer != null)
{
timer.Dispose();
}
if (recComp != null)
{
recComp.Close();
}
while (Marshal.ReleaseComObject(recComp) > 0)
{
;
}
}
// Copy the metadata if requested... use that from the first span.
if (_copyMetadata)
{
using (MetadataEditor sourceEditor = new DvrmsMetadataEditor(_spans[0].File.FullName))
{
using (MetadataEditor destEditor = new AsfMetadataEditor(_target.FullName))
{
MetadataEditor.MigrateMetadata(sourceEditor, destEditor);
}
}
}
// Notify that we're done
OnProgressChanged(100);
return(null);
}
