/// <summary>Initializes the editor.</summary>
/// <param name="filepath">The path to the file.</param>
public DvrmsMetadataEditor(string filepath) : base()
{
IFileSourceFilter sourceFilter = (IFileSourceFilter)ClassId.CoCreateInstance(ClassId.RecordingAttributes);
sourceFilter.Load(filepath, null);
_editor = (IStreamBufferRecordingAttribute)sourceFilter;
}
/// <summary>Do the conversion from DVR-MS to WAV.</summary>
/// <returns>Null; ignored.</returns>
protected override object DoWork()
{
// Get the filter graph
object filterGraph = ClassId.CoCreateInstance(ClassId.FilterGraph);
DisposalCleanup.Add(filterGraph);
IGraphBuilder graph = (IGraphBuilder)filterGraph;
// Add the ASF writer and set the output name
IBaseFilter asfWriterFilter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.WMAsfWriter);
DisposalCleanup.Add(asfWriterFilter);
graph.AddFilter(asfWriterFilter, null);
IFileSinkFilter sinkFilter = (IFileSinkFilter)asfWriterFilter;
sinkFilter.SetFileName(OutputFilePath, null);
// Set the profile to be used for conversion
if (_profilePath != null && _profilePath.Trim().Length > 0)
{
// Load the profile XML contents
string profileData;
using (StreamReader reader = new StreamReader(File.OpenRead(_profilePath)))
{
profileData = reader.ReadToEnd();
}
// Create an appropriate IWMProfile from the data
IWMProfileManager profileManager = ProfileManager.CreateInstance();
DisposalCleanup.Add(profileManager);
IntPtr wmProfile = profileManager.LoadProfileByData(profileData);
DisposalCleanup.Add(wmProfile);
// Set the profile on the writer
IConfigAsfWriter2 configWriter = (IConfigAsfWriter2)asfWriterFilter;
configWriter.ConfigureFilterUsingProfile(wmProfile);
}
// Add the source filter; should connect automatically through the appropriate transform filters
graph.RenderFile(InputFilePath, null);
// Run the graph to completion
RunGraph(graph, asfWriterFilter);
return(null);
}
/// <summary>Do the conversion from DVR-MS to WAV.</summary>
/// <returns>Null; ignored.</returns>
protected override object DoWork()
{
// Get the filter graph
object filterGraph = ClassId.CoCreateInstance(ClassId.FilterGraph);
DisposalCleanup.Add(filterGraph);
IGraphBuilder graph = (IGraphBuilder)filterGraph;
// Add the source filter for the dvr-ms file
IBaseFilter DvrmsSourceFilter = graph.AddSourceFilter(InputFilePath, null);
DisposalCleanup.Add(DvrmsSourceFilter);
// Add the file writer to the graph
IBaseFilter wavFilter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.FileWriter);
DisposalCleanup.Add(wavFilter);
graph.AddFilter(wavFilter, null);
IFileSinkFilter sinkFilter = (IFileSinkFilter)wavFilter;
sinkFilter.SetFileName(OutputFilePath, null);
// Add the Wav Dest filter to the graph
IBaseFilter wavDest = (IBaseFilter)ClassId.CoCreateInstance(ClassId.WavDest);
DisposalCleanup.Add(wavDest);
graph.AddFilter(wavDest, null);
// Add the decrypter node to the graph
IBaseFilter decrypter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.DecryptTag);
DisposalCleanup.Add(decrypter);
graph.AddFilter(decrypter, null);
// Connect the dvr-ms source to the decrypter, the decrypter to the wav dest,
// and the wav dest to the file writer
Connect(graph, DvrmsSourceFilter, "DVR Out - 1", decrypter, "In(Enc/Tag)");
Connect(graph, decrypter, "Out", wavDest, "In");
Connect(graph, wavDest, "Out", wavFilter, "in");
// Run the graph to convert the audio to wav
RunGraph(graph);
return(null);
}
/// <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);
}
