private void bgWorker_DoWork(object sender, DoWorkEventArgs e)
{
// Note: having one background worker per file and running them all in parallel was tested
// but it does more harm than good.
BackgroundWorker bgWorker = sender as BackgroundWorker;
List <string> filenames = e.Argument as List <string>;
if (filenames.Count < 1 || bgWorker == null)
{
e.Result = null;
return;
}
for (int i = 0; i < filenames.Count; i++)
{
if (bgWorker.CancellationPending)
{
break;
}
string filename = filenames[i];
VideoSummary summary = null;
try
{
if (string.IsNullOrEmpty(filename))
{
continue;
}
string extension = Path.GetExtension(filename);
VideoReader reader = VideoTypeManager.GetVideoReader(extension);
int numberOfThumbnails = 5;
if (reader != null)
{
summary = reader.ExtractSummary(filename, numberOfThumbnails, maxImageSize);
}
}
catch (Exception exp)
{
log.ErrorFormat("Error while extracting video summary for {0}.", filename);
log.Error(exp);
}
if (summary == null)
{
summary = new VideoSummary(filename);
}
bgWorker.ReportProgress(i, summary);
}
}
public OpenVideoResult Load(string filePath)
{
// Instanciate appropriate video reader class depending on extension.
string extension = Path.GetExtension(filePath);
videoReader = VideoTypeManager.GetVideoReader(extension);
if (videoReader != null)
{
videoReader.Options = new VideoOptions(PreferencesManager.PlayerPreferences.AspectRatio, PreferencesManager.PlayerPreferences.DeinterlaceByDefault);
return(videoReader.Open(filePath));
}
else
{
return(OpenVideoResult.NotSupported);
}
}
public OpenVideoResult Load(string filePath)
{
// Instanciate appropriate video reader class.
string sequenceFilename = FilesystemHelper.GetSequenceFilename(filePath);
if (!string.IsNullOrEmpty(sequenceFilename))
{
videoReader = VideoTypeManager.GetImageSequenceReader();
filePath = Path.Combine(Path.GetDirectoryName(filePath), sequenceFilename);
}
else
{
if (FilesystemHelper.IsReplayWatcher(filePath))
{
// This happens when we first load a file watcher into this screen.
// Subsequent calls by the watcher will use the actual file name.
// For this initial step, run the most recent file of the directory, if any.
filePath = FilesystemHelper.GetMostRecentFile(Path.GetDirectoryName(filePath));
if (string.IsNullOrEmpty(filePath))
{
// If the directory doesn't have any supported files yet it's not an error, we just load an empty player and get ready.
return(OpenVideoResult.EmptyWatcher);
}
}
videoReader = VideoTypeManager.GetVideoReader(Path.GetExtension(filePath));
}
if (videoReader != null)
{
videoReader.Options = new VideoOptions(PreferencesManager.PlayerPreferences.AspectRatio, ImageRotation.Rotate0, Demosaicing.None, PreferencesManager.PlayerPreferences.DeinterlaceByDefault);
return(videoReader.Open(filePath));
}
else
{
return(OpenVideoResult.NotSupported);
}
}
