private IEnumerable <IImage> GetEnumerable()
{
using (var capture = new FileCapture(path))
{
capture.Seek(skipStart, SeekOrigin.Begin);
var l = length ?? capture.Length;
for (int i = 0; i < l; i++)
{
var enumerable = capture.Read();
yield return(enumerable);
capture.Seek(skip);
}
}
}
public static void Main()
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
var sourceName = String.Empty;
//video over pipe (direct link and Youtube) (do not support seek)
//var pipeName = new Uri("http://trailers.divx.com/divx_prod/divx_plus_hd_showcase/BigBuckBunny_DivX_HD720p_ASP.divx").NamedPipeFromVideoUri(); //web-video
var pipeName = new Uri("https://www.youtube.com/watch?v=Vpg9yizPP_g").NamedPipeFromYoutubeUri(); //Youtube
sourceName = String.Format(@"\\.\pipe\{0}", pipeName);
//video http link (Supports seek)
//sourceName = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4";
//---------------------------------------------
ImageStreamReader reader = new FileCapture(sourceName);
reader.Open();
//seek if you can
if (reader.CanSeek)
{
reader.Seek((int)(reader.Length * 0.25), System.IO.SeekOrigin.Begin);
}
//read video frames
Bgr <byte>[,] frame = null;
while (true)
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
frame.Show(scaleForm: false);
((double)reader.Position / reader.Length).Progress();
}
Console.WriteLine("The end.");
//---------------------------------------------------------------------------
UI.CloseAll();
Console.WriteLine("Downloading video...");
string fileExtension;
var downloadPipeName = new Uri("https://www.youtube.com/watch?v=Vpg9yizPP_g").NamedPipeFromYoutubeUri(out fileExtension); //Youtube
downloadPipeName.SaveNamedPipeStream("out" + fileExtension);
Console.WriteLine("Video saved.");
Process.Start("out" + fileExtension); //open local file
}
public static void Main()
{
var sourceName = String.Empty;
//video over pipe (direct link and Youtube) (do not support seek)
//var pipeName = new Uri("http://trailers.divx.com/divx_prod/divx_plus_hd_showcase/BigBuckBunny_DivX_HD720p_ASP.divx").NamedPipeFromVideoUri(); //web-video
var pipeName = new Uri("https://www.youtube.com/watch?v=Vpg9yizPP_g").NamedPipeFromYoutubeUri(); //Youtube
sourceName = String.Format(@"\\.\pipe\{0}", pipeName);
//video http link (Supports seek)
//sourceName = "http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4";
//---------------------------------------------
ImageStreamReader reader = new FileCapture(sourceName);
reader.Open();
//seek if you can
if (reader.CanSeek)
{
reader.Seek((int)(reader.Length * 0.25), System.IO.SeekOrigin.Begin);
}
//read video frames
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
frame.Show(scaleForm: true);
((double)reader.Position / reader.Length).Progress();
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
Console.WriteLine("The end.");
//---------------------------------------------------------------------------
Console.WriteLine("Downloading video...");
string fileExtension;
var downloadPipeName = new Uri("https://www.youtube.com/watch?v=Vpg9yizPP_g").NamedPipeFromYoutubeUri(out fileExtension); //Youtube
downloadPipeName.SaveNamedPipeStream("out" + fileExtension);
Console.WriteLine("Video saved.");
Process.Start("out" + fileExtension); //open local file
}
private void SetFrame(int frame)
{
CurrentHotFrame = null;
if (frame >= 0)
{
if (frame != currentFrame)
{
if (reader == null)
{
timer.Stop();
return;
}
// has to seek?
if (currentFrame + 1 != frame)
{
reader.Seek(frame, System.IO.SeekOrigin.Begin);
}
if (frameBox.Image != null)
{
frameBox.Image.Dispose();
}
reader.ReadTimeout = timer.Interval;
Image <Bgr <byte> > img = reader.ReadAs <Bgr <byte> >();
//ResizeNearestNeighbor filter = new ResizeNearestNeighbor(400, 300);
//Bitmap newImage = filter.Apply(img.ToBitmap());
if (img != null)
{
frameBox.Image = img.ToBitmap();
frameBox.ZoomToFit();
}
currentFrame = frame;
}
}
else
{
frameBox.Image = null;
if (frame < 0)
{
currentFrame = 0;
trackBar.Value = 0;
}
toolStripStatus.Text = "Outside of the stream time limits.";
}
}
public override void Load(IServiceProvider provider)
{
var context = (ITypeVisualizerContext)provider.GetService(typeof(ITypeVisualizerContext));
var visualizerElement = ExpressionBuilder.GetVisualizerElement(context.Source);
capture = (FileCapture)ExpressionBuilder.GetWorkflowElement(visualizerElement.Builder);
videoPlayer = new VideoPlayer {
Dock = DockStyle.Fill
};
videoPlayer.LoopChanged += (sender, e) => capture.Loop = videoPlayer.Loop;
videoPlayer.PlayingChanged += (sender, e) => capture.Playing = videoPlayer.Playing;
videoPlayer.PlaybackRateChanged += (sender, e) => capture.PlaybackRate = videoPlayer.PlaybackRate == frameRate ? 0 : Math.Max(1, videoPlayer.PlaybackRate);
videoPlayer.Seek += (sender, e) => capture.Seek(e.FrameNumber);
var visualizerService = (IDialogTypeVisualizerService)provider.GetService(typeof(IDialogTypeVisualizerService));
if (visualizerService != null)
{
visualizerService.AddControl(videoPlayer);
}
base.Load(provider);
}
