/// <summary>
/// Prepares the files of an existing job.
/// </summary>
/// <returns>A MediaEncoderSegments object containing the segments analysis.</returns>
public MediaEncoderSegments PrepareExistingJob(MediaEncoderSettings settings) {
settings.ResumePos = 0;
settings.CompletionStatus = CompletionStatus.Success;
if (File.Exists(settings.FinalFile)) {
// Merging was completed.
return null;
} else {
MediaEncoderSegments SegBusiness = new MediaEncoderSegments();
SegBusiness.Analyze(settings);
return SegBusiness;
}
}
/// <summary>
/// For files encoded in various segments (stop/resume), merge the various segments.
/// </summary>
private CompletionStatus MergeSegments(MediaEncoderSettings settings, string destination) {
MediaEncoderSegments segBusiness = new MediaEncoderSegments();
segBusiness.Analyze(settings);
if (segBusiness.SegLeft.Count() > 0)
return CompletionStatus.Error;
List<string> SegmentList = new List<string>();
foreach (SegmentInfo seg in segBusiness.SegDone) {
SegmentList.Add(PathManager.GetOutputFile(settings.JobIndex, seg.Start, settings.Container));
}
CompletionStatus Result = CompletionStatus.Success;
File.Delete(destination);
if (SegmentList.Count == 1)
File.Move(SegmentList[0], destination);
else if (SegmentList.Count > 1) {
Result = MediaMuxer.Concatenate(SegmentList, destination, new ProcessStartOptions(settings.JobIndex, "Merging Files", false));
}
settings.CompletionStatus = Result;
return Result;
}
private void EncoderThread(object obj) {
MediaEncoderSettings settings = obj as MediaEncoderSettings;
settings.CompletionStatus = CompletionStatus.Success;
DateTime StartTime = DateTime.Now;
FFmpegConfig.UserInterfaceManager.Start(settings.JobIndex, "Processing Video");
MediaEncoderSegments SegBusiness = PrepareExistingJob(settings);
// If merging is completed, SegBusiness==null. If work is completed but not merged, SegBusiness.SegLeft = empty list.
if (SegBusiness != null && SegBusiness.SegLeft.Count() > 0) {
if (settings.Deshaker && (settings.DeshakerSettings.PrescanAction != PrescanType.Full || !settings.DeshakerSettings.PrescanCompleted)) {
settings.DeshakerSettings.PrescanAction = PrescanType.Full;
settings.CompletionStatus = GenerateDeshakerLog(settings, settings.InputFile);
}
if (settings.CompletionStatus == CompletionStatus.Success) {
// Encode audio stream
Task EncAudio = null;
if (settings.HasAudioOptions)
EncAudio = Task.Run(() => EncoderBusiness.EncodeAudio(settings));
// Encode video stream in segments
List<Task<CompletionStatus>> EncTasks = new List<Task<CompletionStatus>>();
if (settings.VideoAction != VideoAction.Copy) {
bool Cancel = false;
foreach (SegmentInfo seg in SegBusiness.SegLeft) {
MediaEncoderSettings EncSettings = settings.Clone();
EncSettings.ResumePos = seg.Start;
File.Delete(EncSettings.OutputFile);
EncTasks.Add(Task.Run(() => EncoderBusiness.EncodeVideo(EncSettings, seg.Length, SegBusiness.TotalFrames)));
// If there are more segments than max parallel instances, wait until some threads finish
if (EncTasks.Count >= settings.ParallelProcessing) {
Task.WaitAny(EncTasks.ToArray());
foreach (var item in EncTasks.ToArray()) {
if (item.IsCompleted) {
if (item.Result == CompletionStatus.Success)
EncTasks.Remove(item);
else {
settings.CompletionStatus = item.Result;
Cancel = true;
}
}
}
}
if (Cancel)
break;
}
}
EncAudio?.Wait();
Task.WaitAll(EncTasks.ToArray());
}
} else if (settings.CompletionStatus == CompletionStatus.None)
settings.CompletionStatus = CompletionStatus.Success;
if (FFmpegConfig.UserInterfaceManager.AppExited)
return;
// Check if encode is completed.
EncodingCompletedEventArgs CompletedArgs = null;
if (settings.CompletionStatus == CompletionStatus.Success) {
CompletedArgs = FinalizeEncoding(settings, StartTime);
if (settings.CompletionStatus == CompletionStatus.Success && CompletedArgs != null)
EncodingCompleted?.Invoke(this, CompletedArgs);
}
if (settings.CompletionStatus != CompletionStatus.Success) {
CompletedArgs = GetEncodingResults(settings, null, StartTime);
if (IsEncoding)
EncodingFailed?.Invoke(this, CompletedArgs);
}
if (IsEncoding || settings.CompletionStatus == CompletionStatus.Success)
Application.Current.Dispatcher.Invoke(() => ProcessingQueue.Remove(settings));
FFmpegConfig.UserInterfaceManager.Stop(settings.JobIndex);
// Start next job.
if (IsEncoding && ProcessingQueue.Count > 0)
EncoderThread(ProcessingQueue.First());
JobThread = null;
}
