static void Main(string[] args)
{
//initialize capture and buffer
VideoCaptureBase capture = new FileCapture("../Resources/video-vignette.mp4"); // /*or*/ capture = new CameraCapture();
Bgr <byte>[,] frame = null;
//initialize devignetting alg
capture.ReadTo(ref frame);
var devignetting = new Devignetting(frame, optimizeVignettingCentre: true);
Bgr <byte>[,] correctedIm = frame.CopyBlank();
//do the job
do
{
capture.ReadTo(ref frame);
if (frame == null)
{
break;
}
frame.Show("Original");
frame.CopyTo(correctedIm, Point.Empty);
bool isDone = devignetting.DevignetteSingleStep(correctedIm);
correctedIm.Show("Corrected");
Console.WriteLine("Frame: {0:000}, is done: {1}", capture.Position, isDone);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
capture.Close();
}
/// <summary>
/// Get a list of frames from a video file in AVI format.
/// </summary>
/// <param name="filename">Input video filename.</param>
/// <returns>Frame list.</returns>
private List <Texture2D> frameListFromAvi(string filename)
{
List <Texture2D> frames = new List <Texture2D>();
using (FileCapture reader = FileCaptureX.CaptureLocalFile(filename)) {
Console.WriteLine("reading file " + filename);
foreach (Image <Bgr <byte> > image in reader)
{
Texture2D frame = new Texture2D(Graphics, image.Width, image.Height);
Bgr <byte>[,] data = new Bgr <byte> [image.Height, image.Width];
Color[] linear = new Color[image.Width * image.Height];
image.CopyTo(data);
int h = 0;
for (int k = 0; k < image.Height; k++)
{
for (int i = 0; i < image.Width; i++)
{
linear[h++] = new Color(data[k, i].R, data[k, i].G, data[k, i].B);
}
}
Console.WriteLine("frame " + reader.Position);
frame.SetData(linear);
frames.Add(frame);
}
Console.WriteLine("done.");
reader.Close();
}
return(frames);
}
static void Main()
{
//var reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(scaleForm: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
UI.CloseAll();
}
static void Main()
{
Directory.SetCurrentDirectory(AppDomain.CurrentDomain.BaseDirectory);
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";runtimes/win10-x64/"); //only needed if projects are directly referenced
Console.WriteLine("Press ESC to stop playing");
//var reader = new CameraCapture(0); //capture from camera
//(reader as CameraCapture).FrameSize = new Size(640, 480);
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4")); //capture from video
//var reader = new ImageDirectoryCapture(Path.Combine(getResourceDir(), "Sequence"), "*.jpg");
reader.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
frame.Show(autoSize: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
ImageUI.CloseAll();
}
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 reader = new CameraCapture(0); //capture from camera
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4"));
reader.Open();
var writer = new VideoWriter(@"output.avi", reader.FrameSize, /*reader.FrameRate does not work Cameras*/ 30); //TODO: bug: FPS does not work for cameras
writer.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
using (var uFrame = frame.Lock())
{ writer.Write(uFrame); }
frame.Show(autoSize: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
writer.Dispose();
ImageUI.CloseAll();
}
static void Main()
{
Console.WriteLine("Press ESC to stop playing");
//var reader = new CameraCapture(0); //capture from camera
//(reader as CameraCapture).FrameSize = new Size(640, 480);
var reader = new FileCapture(Path.Combine(getResourceDir(), "Welcome.mp4")); //capture from video
//var reader = new ImageDirectoryCapture(Path.Combine(getResourceDir(), "Sequence"), "*.jpg");
reader.Open();
Bgr <byte>[,] frame = null;
do
{
reader.ReadTo(ref frame);
if (frame == null)
{
break;
}
frame.Show(scaleForm: true);
}while (!(Console.KeyAvailable && Console.ReadKey(true).Key == ConsoleKey.Escape));
reader.Dispose();
}
public static void Main()
{
//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
ImageStreamReader reader = new FileCapture(String.Format(@"\\.\pipe\{0}", pipeName));
reader.Open();
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;
pipeName = new Uri("https://www.youtube.com/watch?v=Vpg9yizPP_g").NamedPipeFromYoutubeUri(out fileExtension); //Youtube
pipeName.SaveNamedPipeStream("out" + fileExtension);
Console.WriteLine("Video saved.");
}
private void VideoStreamWnd_Shown(object sender, EventArgs e)
{
try
{
project = ((MainForm)this.MdiParent).Project;
VideoDataLine startDataLine = (VideoDataLine)dataStream.DataLines[0];
OpenVideo(startDataLine);
trackBar.Minimum = 0;
trackBar.Maximum = Convert.ToInt32(dataStream.Length * reader.FrameRate);
SetFrameByTime(dataStream.StartTime);
this.Text = "Video Stream: " + dataStream.ShortName;
Refresh();
}
catch (Exception ex)
{
reader = null;
logger.WriteLineError(ex.ToString());
MessageBox.Show("Error during opening the file: " + ex.Message, "Error during opening video file", MessageBoxButtons.OK, MessageBoxIcon.Error);
DialogResult result = MessageBox.Show("Do you want to reload stream for appropriate video format?", "Reloading stream!", MessageBoxButtons.OKCancel, MessageBoxIcon.Exclamation);
if (result == DialogResult.OK)
{
dataStream.WriteMetadata(logger);
MessageBox.Show("Stream reloaded! Open stream again!", "Open stream again!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
this.Close();
}
}
/// <summary>
/// Uses the dotImaging library to extract each frame from a video and saving it.
/// </summary>
/// <param name="savePath">Where the frames should be saved.</param>
/// <param name="filePath">Path to videofile.</param>
public void videoImageExtractor(String savePath, String filePath)
{
var reader = new FileCapture(filePath);
reader.Open();
reader.SaveFrames(savePath, "{0}.png");
reader.Close();
}
public override void Unload()
{
base.Unload();
videoPlayer.Dispose();
videoPlayer = null;
capture = null;
captureCache = null;
}
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
}
private static FileCapture EmptyConstructedFileCapture()
{
FileCapture fc = (FileCapture)FormatterServices.GetUninitializedObject(typeof(FileCapture));
Console.WriteLine(fc);
var baseconstructor = typeof(VideoCaptureBase).GetConstructor(BindingFlags.NonPublic | BindingFlags.Instance,
null, new Type[] {}, null);
baseconstructor.Invoke(fc, new object[] {});
return(fc);
}
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 static void extractVideo(string fileName)
{
//get output dir (same as file name and in the same folder as video)
var fileInfo = new FileInfo(fileName);
var fileNameNoExt = fileInfo.Name.Replace(fileInfo.Extension, String.Empty);
string outputDir = Path.Combine(fileInfo.DirectoryName, fileNameNoExt);
//open video
var reader = new FileCapture(fileName);
reader.Open();
reader.SaveFrames(outputDir, "{0}.jpg", p => Console.Write($"\rExtracting: {(int)(p * 100)} %"));
ImageUI.CloseAll();
}
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);
}
}
}
private static void extractVideo(string fileName)
{
//get output dir (same as file name and in the same folder as video)
var fileInfo = new FileInfo(fileName);
var fileNameNoExt = fileInfo.Name.Replace(fileInfo.Extension, String.Empty);
string outputDir = Path.Combine(fileInfo.DirectoryName, fileNameNoExt);
//open video
var reader = new FileCapture(fileName);
reader.Open();
reader.SaveFrames(outputDir, "{0}.jpg", (percentage) =>
{
((double)percentage).Progress(message: "Extracting " + fileNameNoExt);
});
UI.CloseAll();
}
private static void extractVideo(string fileName)
{
//get output dir (same as file name and in the same folder as video)
var fileInfo = new FileInfo(fileName);
var fileNameNoExt = fileInfo.Name.Replace(fileInfo.Extension, String.Empty);
string outputDir = Path.Combine(fileInfo.DirectoryName, fileNameNoExt);
//open video
var reader = new FileCapture(fileName);
reader.Open();
Console.WriteLine("Extracting video frames - {0}...", fileNameNoExt);
reader.SaveFrames(outputDir, "{0}.jpg", (percentage) =>
{
Console.Write("\r Completed: {0} %", (int)(percentage * 100));
});
Console.WriteLine();
}
/// <summary>
/// Creates capture object from a local file.
/// </summary>
/// <returns>Capture object..</returns>
/// <param name="fname">File name.</param>
public static FileCapture CaptureLocalFile(string fname)
{
FileCapture fc = EmptyConstructedFileCapture();
string fileExt = Path.GetExtension(fname);
if (supportedLocalFiles.Any(x => x.Equals(fileExt.ToLower())) == false)
{
throw new UriFormatException(String.Format("File must be a supported video file ({0}).",
String.Join(", ", supportedLocalFiles)));
}
typeof(FileCapture).GetProperty("CanSeek").SetValue(fc, true);
typeof(FileCapture).GetField("fileName", BindingFlags.NonPublic | BindingFlags.Instance).SetValue(fc, fname);
//fc.CanSeek = true;
//fc.fileName = fname;
fc.Open(); //to enable property change
return(fc);
}
private void OpenVideo(VideoDataLine dataLine)
{
if (this.currentDataLine != null)
{
reader.Close();
}
try
{
reader = new FileCapture(project.Folder + "\\" + dataStream.SubFolder + "\\" + dataLine.VideoFileName);
reader.Open();
timer.Interval = Convert.ToInt32((1 / reader.FrameRate) * 1000);
currentDataLine = dataLine;
lblStatus.Text += "Current file: " + dataLine.VideoFileName;
}
catch (Exception ex)
{
lblStatus.Text = "Error: " + ex.Message;
logger.WriteLineError("Error occured: " + ex.Message);
throw ex;
}
}
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);
}
