public void Export(CommonTimeline commonTimeline, PlayerScreen leftPlayer, PlayerScreen rightPlayer, bool merging)
{
this.commonTimeline = commonTimeline;
this.leftPlayer = leftPlayer;
this.rightPlayer = rightPlayer;
this.merging = merging;
// During saving we move through the common timeline by a time unit based on framerate and high speed factor, but not based on user custom slow motion factor.
// For the framerate saved in the file metadata we take user custom slow motion into account and not high speed factor.
fileFrameInterval = Math.Max(leftPlayer.FrameInterval, rightPlayer.FrameInterval);
fileFrameInterval = Math.Max(fileFrameInterval, 10);
dualSaveFileName = GetFilename(leftPlayer, rightPlayer);
if (string.IsNullOrEmpty(dualSaveFileName))
{
return;
}
dualSaveCancelled = false;
// Instanciate and configure the bgWorker.
bgWorkerDualSave = new BackgroundWorker();
bgWorkerDualSave.WorkerReportsProgress = true;
bgWorkerDualSave.WorkerSupportsCancellation = true;
bgWorkerDualSave.DoWork += bgWorkerDualSave_DoWork;
bgWorkerDualSave.ProgressChanged += bgWorkerDualSave_ProgressChanged;
bgWorkerDualSave.RunWorkerCompleted += bgWorkerDualSave_RunWorkerCompleted;
// Make sure none of the screen will try to update itself.
// Otherwise it will cause access to the other screen image (in case of merge), which can cause a crash.
leftPlayer.DualSaveInProgress = true;
rightPlayer.DualSaveInProgress = true;
dualSaveProgressBar = new formProgressBar(true);
dualSaveProgressBar.Cancel = dualSave_CancelAsked;
// The worker thread runs in the background while the UI thread is in the progress bar dialog.
// We only continue after these two lines once the video has been saved or the saving cancelled.
bgWorkerDualSave.RunWorkerAsync();
dualSaveProgressBar.ShowDialog();
if (dualSaveCancelled)
{
DeleteTemporaryFile(dualSaveFileName);
}
leftPlayer.DualSaveInProgress = false;
rightPlayer.DualSaveInProgress = false;
}
