internal static void AddToQueue(ThumbnailQueueItem thumbnailQueueItem)
{
Debug.WriteLine("AddToQueue");
lock (locker)
{
ThumbnailQueue.Enqueue(thumbnailQueueItem);
if (_isWorking == false)
{
_isWorking = true;
RunWorker();
}
//GeneratorTimer_Elapsed(null, null);
}
}
private static Image GenerateThumbnail(ThumbnailQueueItem thumbnailQueueItem)
{
Image ret = null;
Guid guid = Guid.NewGuid();
string thumbFilePath = Path.Combine(Path.GetTempPath(), "HH-thumbs-" + guid.ToString() + ".png");
Logger.Info("Generating: " + thumbFilePath);
var thumbnailProcess = new Process();
thumbnailProcess.StartInfo.FileName = MainModel.GetPathToFFmpeg();
thumbnailProcess.StartInfo.Arguments = "-ss " + thumbnailQueueItem.SeekInSeconds.ToString(CultureInfo.InvariantCulture) + " -t 1 " +
"-i \"" + thumbnailQueueItem.SourceFileInfo.FullName + "\" -y -vframes 1 -filter:v yadif -an " +
"-s " + thumbnailQueueItem.Size.Width.ToString(CultureInfo.InvariantCulture) + "x" + thumbnailQueueItem.Size.Height.ToString(CultureInfo.InvariantCulture) + " \"" + thumbFilePath + "\"";
/*
* -t 1 duration of 1 second
* -y overwrite existing file
* -filter:v yadif deinterlace
* -vframes 1 record 1 video frame
* -an disable audio recording
* -s size of thumbnail
*/
thumbnailProcess.StartInfo.UseShellExecute = false;
thumbnailProcess.StartInfo.CreateNoWindow = true;
thumbnailProcess.StartInfo.RedirectStandardError = true;
try
{
Logger.Debug("Starting with arguments: " + thumbnailProcess.StartInfo.Arguments);
thumbnailProcess.Start();
thumbnailProcess.WaitForExit();
//Logger.Debug("FFmpeg output: " + thumbnailProcess.StandardError.ReadToEnd());
byte[] buffer = File.ReadAllBytes(thumbFilePath);
MemoryStream ms = new MemoryStream(buffer);
ret = Image.FromStream(ms);
File.Delete(thumbFilePath);
}
catch (Exception ex)
{
Logger.Error(ex);
// ret = backup image
}
return ret;
}
