/// <summary>
/// Deserialize XML Batch file.
/// </summary>
/// <param name="filename"></param>
/// <returns></returns>
/// Todo: add some error handling.
public static ArchiveTranscoderBatch ReadBatchFile(string filename)
{
XmlSerializer serializer = new XmlSerializer(typeof(ArchiveTranscoderBatch));
// If the XML document has been altered with unknown
// nodes or attributes, they could be handled with
// UnknownNode and UnknownAttribute events.
//serializer.UnknownNode+= new XmlNodeEventHandler(serializer_UnknownNode);
//serializer.UnknownAttribute+= new XmlAttributeEventHandler(serializer_UnknownAttribute);
ArchiveTranscoderBatch b = null;
FileStream fs = null;
try
{
fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
b = (ArchiveTranscoderBatch)serializer.Deserialize(fs);
}
catch
{
b = null;
}
finally
{
if (fs != null)
{
fs.Close();
}
}
return(b);
}
/// <summary>
/// Write Batch file
/// </summary>
public static void WriteBatch(ArchiveTranscoderBatch batch, String filename)
{
XmlSerializer serializer =
new XmlSerializer(typeof(ArchiveTranscoderBatch));
TextWriter writer = new StreamWriter(filename);
serializer.Serialize(writer, batch);
writer.Close();
}
private void buttonBuild_Click(object sender, System.EventArgs e)
{
if (!buildingPreview)
{
//validate start time and duration
DateTime start = DateTime.MinValue;
DateTime end = DateTime.MinValue;
int duration = 0;
try
{
start = DateTime.Parse(this.textBoxStartTime.Text);
}
catch
{
MessageBox.Show("Failed to parse Start Time as a date/time: " + this.textBoxStartTime.Text);
return;
}
try
{
duration = Int32.Parse(this.textBoxDuration.Text);
}
catch
{
MessageBox.Show("Failed to parse preview duration as a positive integer.");
return;
}
if (Directory.Exists(this.previewDirPath))
{
this.axWindowsMediaPlayer1.URL = "";
try {
Directory.Delete(this.previewDirPath, true);
}
catch (System.IO.IOException) {
//This appears to be a bug. Even with the recursive flag, it sometimes throws the
//"Directory is not empty" exception. Seems safe to ignore.
#if DEBUG
MessageBox.Show("Debug message: Directory delete operation may have failed for " + this.previewDirPath +
". It is most likely safe to ignore this message.");
#endif
}
}
end = start + TimeSpan.FromSeconds(duration);
//create an encoder and load a job
transcoder = new ArchiveTranscoder();
transcoder.SQLHost = sqlHost;
transcoder.DBName = dbName;
ArchiveTranscoderBatch batch = new ArchiveTranscoderBatch();
batch.Job = new ArchiveTranscoderJob[1];
batch.Job[0] = new ArchiveTranscoderJob();
batch.Job[0].ArchiveName = "ArchiveTranscoder_preview";
batch.Job[0].Target = new ArchiveTranscoderJobTarget[1];
batch.Job[0].Target[0] = new ArchiveTranscoderJobTarget();
batch.Job[0].Target[0].Type = "stream";
batch.Job[0].WMProfile = "norecompression";
batch.Job[0].BaseName = "ArchiveTranscoder_preview";
batch.Job[0].Path = Constants.TempDirectory;
batch.Job[0].Segment = new ArchiveTranscoderJobSegment[1];
batch.Job[0].Segment[0] = new ArchiveTranscoderJobSegment();
batch.Job[0].Segment[0].VideoDescriptor = this.videoStreamGroup.ToVideoDescriptor();
batch.Job[0].Segment[0].AudioDescriptor = new ArchiveTranscoderJobSegmentAudioDescriptor[this.checkedListBoxAudioSources.CheckedItems.Count];
int i = 0;
foreach (StreamGroup sg in this.checkedListBoxAudioSources.CheckedItems)
{
batch.Job[0].Segment[0].AudioDescriptor[i] = sg.ToAudioDescriptor();
i++;
}
//batch.Job[0].Segment[0].StartTime = start.ToString(Constants.dtformat);
batch.Job[0].Segment[0].StartTime = Utility.GetLocalizedDateTimeString(start, Constants.timeformat);
//batch.Job[0].Segment[0].EndTime = end.ToString(Constants.dtformat);
batch.Job[0].Segment[0].EndTime = Utility.GetLocalizedDateTimeString(end, Constants.timeformat);
if (useSlideStream)
{
Utility.SetSegmentFlag(batch.Job[0].Segment[0], SegmentFlags.SlidesReplaceVideo);
//Since slide streams start out uncompressed, we can't use norecompression.
//Use the 256kbps system profile
batch.Job[0].WMProfile = "9";
//In this case we also need a presentation source and slide decks
batch.Job[0].Segment[0].PresentationDescriptor = segment.PresentationDescriptor;
batch.Job[0].Segment[0].SlideDecks = segment.SlideDecks;
}
transcoder.LoadJobs(batch);
previewDirPath = Path.Combine(Constants.TempDirectory, @"ArchiveTranscoder_preview");
previewFilePath = Path.Combine(previewDirPath, @"stream\ArchiveTranscoder_preview.wmv");
//register for stop encode and status events
transcoder.OnBatchCompleted += new ArchiveTranscoder.batchCompletedHandler(OnBuildCompleted);
transcoder.OnStatusReport += new ArchiveTranscoder.statusReportHandler(OnStatusReport);
transcoder.OnStopCompleted += new ArchiveTranscoder.stopCompletedHandler(StopCompletedHandler);
//disable controls during build
BuildControlsEnable(false, false);
String result = transcoder.Encode();
if (result == null)
{
buttonBuild.Text = "Stop Build";
buildingPreview = true;
this.currentPreviewStart = start;
}
else
{
MessageBox.Show("Preview build failed to start: " + result);
BuildControlsEnable(true, false);
}
}
else
{
this.Cursor = Cursors.WaitCursor;
//stop build in progress..
if (transcoder != null)
{
transcoder.AsyncStop();
}
this.buttonBuild.Enabled = false;
this.buttonBuild.Text = "Stopping ...";
}
}