/// <summary>
/// Loads a video from a given stream
/// </summary>
/// <param name="videoStream">the video stream</param>
public void Load(Stream videoStream)
{
if (Application == null)
{
throw new InvalidOperationException("Can't load until the control has been added to an application");
}
Task.Factory.StartNew(() =>
{
try
{
var reader = new ConsoleBitmapStreamReader(videoStream);
reader.ReadToEnd((videoWithProgressInfo) =>
{
inMemoryVideo = inMemoryVideo ?? videoWithProgressInfo;
this.duration = videoWithProgressInfo.Duration;
Application.InvokeNextCycle(() =>
{
if (this.CurrentFrame == null)
{
this.CurrentFrame = videoWithProgressInfo.Frames[0].Bitmap;
playerProgressBar.ShowPlayCursor = true;
playButton.CanFocus = true;
seekToBeginningButton.CanFocus = true;
seekBack10SButton.CanFocus = true;
seekForward10SButton.CanFocus = true;
seekToEndButton.CanFocus = true;
State = PlayerState.Stopped;
if (Application.FocusManager.FocusedControl == null)
{
Application.FocusManager.TrySetFocus(playButton);
}
}
playerProgressBar.LoadProgressPosition = inMemoryVideo.LoadProgress;
});
if (AfterFrameLoadDelay.HasValue)
{
Thread.Sleep(AfterFrameLoadDelay.Value);
}
});
}
catch (Exception ex)
{
#if DEBUG
failedMessage = ex.ToString();
#else
failedMessage = ex.Message;
#endif
Application.InvokeNextCycle(() =>
{
State = PlayerState.Failed;
});
}
});
}
private bool TryOpenConsoleBitmapReaderFormat(string filePath)
{
try
{
using (var stream = File.OpenRead(filePath))
{
var reader = new ConsoleBitmapStreamReader(stream);
var animation = reader.ReadToEnd();
this.animation.Frames.Clear();
this.animation.Frames.AddRange(animation.Frames);
CurrentFrameIndex = 0;
return(true);
}
}
catch (Exception ex)
{
return(false);
}
}
private async void SaveCommon(string destination)
{
if (saveInProgress)
{
return;
}
try
{
saveInProgress = true;
ConsoleBitmapVideoWriter writer = null;
var tempFile = Path.GetTempFileName();
bool tempWriteSuccess = false;
try
{
writer = new ConsoleBitmapVideoWriter(s => File.WriteAllText(tempFile, s));
foreach (var frame in animation.Frames)
{
writer.WriteFrame(frame.Bitmap, desiredFrameTime: frame.FrameTime);
}
tempWriteSuccess = true;
}
catch (Exception)
{
await Dialog.ShowMessage($"Failed to save file to {destination}".ToRed());
return;
}
finally
{
writer?.Finish();
if (tempWriteSuccess == false)
{
try { File.Delete(tempFile); } catch (Exception) { }
}
}
try
{
// If we can't read this back then don't finalize the save.
// This ensures that if we wrote garbage (which should never happen)
// then we won't corrupt whatever was on disk.
using (var testStream = File.OpenRead(tempFile))
{
var testReader = new ConsoleBitmapStreamReader(testStream);
testReader.ReadToEnd();
}
}
catch (Exception)
{
try { File.Delete(tempFile); } catch (Exception) { }
await Dialog.ShowMessage($"Failed to save file to {destination}".ToRed());
return;
}
File.Delete(destination);
File.Move(tempFile, destination);
currentlyOpenedFile = destination;
undoRedo.Do(new ClearPendingChangesAction(this));
}
finally
{
saveInProgress = false;
}
}
