private void GeneratePreviewImpl()
{
this.job = this.mainViewModel.EncodeJob;
this.PreviewPercentComplete = 0;
this.EncodeState = PreviewEncodeState.EncodeStarting;
this.cancelPending = false;
this.encodeCancelled = false;
this.SetPreviewFilePath();
this.job.OutputPath = this.previewFilePath;
if (this.job.Subtitles?.SourceSubtitles != null)
{
SourceSubtitle scanTrack = this.job.Subtitles.SourceSubtitles.FirstOrDefault(s => s.TrackNumber == 0);
if (scanTrack != null)
{
this.job.Subtitles.SourceSubtitles.Remove(scanTrack);
}
}
this.encodeProxy = Utilities.CreateEncodeProxy();
this.encodeProxy.EncodeStarted += (o, e) =>
{
DispatchUtilities.BeginInvoke(() =>
{
this.EncodeState = PreviewEncodeState.Encoding;
if (this.cancelPending)
{
this.CancelPreviewImpl();
}
});
};
this.encodeProxy.EncodeProgress += (o, e) =>
{
double totalWeight;
double completeWeight;
if (e.PassCount == 1)
{
// Single pass, no subtitle scan
totalWeight = 1;
completeWeight = e.FractionComplete;
}
else if (e.PassCount == 2 && e.PassId <= 0)
{
// Single pass with subtitle scan
totalWeight = 1 + SubtitleScanCost;
if (e.PassId == -1)
{
// In subtitle scan
completeWeight = e.FractionComplete * SubtitleScanCost;
}
else
{
// In normal pass
completeWeight = SubtitleScanCost + e.FractionComplete;
}
}
else if (e.PassCount == 2 && e.PassId >= 1)
{
// Two normal passes
totalWeight = 2;
if (e.PassId == 1)
{
// First pass
completeWeight = e.FractionComplete;
}
else
{
// Second pass
completeWeight = 1 + e.FractionComplete;
}
}
else
{
// Two normal passes with subtitle scan
totalWeight = 2 + SubtitleScanCost;
if (e.PassId == -1)
{
// In subtitle scan
completeWeight = e.FractionComplete * SubtitleScanCost;
}
else if (e.PassId == 1)
{
// First normal pass
completeWeight = SubtitleScanCost + e.FractionComplete;
}
else
{
// Second normal pass
completeWeight = SubtitleScanCost + 1 + e.FractionComplete;
}
}
double fractionComplete = completeWeight / totalWeight;
this.PreviewPercentComplete = fractionComplete * 100;
};
this.encodeProxy.EncodeCompleted += (o, e) =>
{
DispatchUtilities.BeginInvoke(() =>
{
this.EncodeState = PreviewEncodeState.NotEncoding;
if (this.encodeCancelled)
{
this.logger.Log("Cancelled preview clip generation");
}
else
{
if (e.Error)
{
this.logger.Log(PreviewRes.PreviewClipGenerationFailedTitle);
Utilities.MessageBox.Show(PreviewRes.PreviewClipGenerationFailedMessage);
}
else
{
var previewFileInfo = new FileInfo(this.previewFilePath);
this.logger.Log("Finished preview clip generation. Size: " + Utilities.FormatFileSize(previewFileInfo.Length));
this.PlayPreview();
}
}
});
};
this.logger.Log("Generating preview clip");
this.logger.Log(" Path: " + this.job.OutputPath);
this.logger.Log(" Title: " + this.job.Title);
this.logger.Log(" Preview #: " + this.SelectedPreview);
this.encodeProxy.StartEncode(this.job, this.logger, true, this.SelectedPreview, this.PreviewSeconds, this.job.Length.TotalSeconds);
}
private void StartEncode()
{
VCJob job = this.CurrentJob.Job;
var encodeLogger = new Logger(this.logger, Path.GetFileName(job.OutputPath));
this.CurrentJob.Logger = encodeLogger;
encodeLogger.Log("Starting job " + this.taskNumber + "/" + this.totalTasks);
encodeLogger.Log(" Path: " + job.SourcePath);
encodeLogger.Log(" Title: " + job.Title);
switch (job.RangeType)
{
case VideoRangeType.All:
encodeLogger.Log(" Range: All");
break;
case VideoRangeType.Chapters:
encodeLogger.Log(" Chapters: " + job.ChapterStart + "-" + job.ChapterEnd);
break;
case VideoRangeType.Seconds:
encodeLogger.Log(" Seconds: " + job.SecondsStart + "-" + job.SecondsEnd);
break;
case VideoRangeType.Frames:
encodeLogger.Log(" Frames: " + job.FramesStart + "-" + job.FramesEnd);
break;
}
this.encodeProxy = Utilities.CreateEncodeProxy();
this.encodeProxy.EncodeProgress += this.OnEncodeProgress;
this.encodeProxy.EncodeCompleted += this.OnEncodeCompleted;
this.encodeProxy.EncodeStarted += this.OnEncodeStarted;
string destinationDirectory = Path.GetDirectoryName(this.CurrentJob.Job.OutputPath);
if (!Directory.Exists(destinationDirectory))
{
try
{
Directory.CreateDirectory(destinationDirectory);
}
catch (IOException exception)
{
Utilities.MessageBox.Show(
string.Format(MainRes.DirectoryCreateErrorMessage, exception),
MainRes.DirectoryCreateErrorTitle,
MessageBoxButton.OK,
MessageBoxImage.Error);
}
}
this.currentJobEta = TimeSpan.Zero;
this.EncodeQueue[0].ReportEncodeStart(this.totalTasks == 1);
this.encodeProxy.StartEncode(this.CurrentJob.Job, encodeLogger, false, 0, 0, 0);
this.StopEncodeCommand.RaiseCanExecuteChanged();
this.PauseCommand.RaiseCanExecuteChanged();
}
