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• Watermarking script from the given image

  26 mars 2018, par Marasmius

  Good day, I recently found a script for drawing a watermark on the video (link to the script - https://github.com/ham-grey/QRWatermark ), the script generates a watermark for the given text, but I would like the watermark to be taken from beforehand the generated picture, is it possible ?
  Alas, I am far from programming, but I must begin to understand, at least, the basics.

• GPS information getting loss in video frames

  1er octobre 2019, par Zaheer Abbas

  I have GoPro Hero6 black camera videos with GPS enabled. I want to get geotagged info of each frame, but when I convert video to frames using FFmPeg command "** ffmpeg -i GH012081.MP4 -vf fps=1 thumb%04d.jpg -hide_banner** " the GPS info got losses for each frame. How to retain GPS info in the frames ?

  After this, I have to sync the specific frame into the video for 2 or 3 seconds after drawing some 2d objects ?

• Playing a video with FFMPEG & OpenTK

  22 août 2017, par bwoogie

  My goal is to play a video using FFMPEG (Accord.net), grabbing each frame and drawing it with OpenGL (OpenTK). This is my first time using OpenTK and Accord.net so naturally, I’m not getting the desired results, instead I’m getting a blank screen. What am I missing ?

  sealed class Output : GameWindow {
  
  
  
      VideoFileReader videoreader = new VideoFileReader();
  
      Bitmap vidbmp;
  
      long curFrame = 0;
  
      public Output(int width, int height, DisplayIndex displayIndex) : base(width, height, GraphicsMode.Default, "Output", GameWindowFlags.Fullscreen, DisplayDevice.GetDisplay(displayIndex), 3, 0, GraphicsContextFlags.ForwardCompatible) { }
  
  
  
      protected override void OnLoad(EventArgs e) {
  
          //load video
  
          videoreader.Open(@"C:\notelady.mp4");
  
      }
  
  
  
      protected override void OnResize(EventArgs e) {
  
          GL.Viewport(0, 0, Width, Height);
  
      }
  
  
  
      protected override void OnUpdateFrame(FrameEventArgs e) {
  
          if(curFrame < videoreader.FrameCount) {
  
              vidbmp = videoreader.ReadVideoFrame();
  
              curFrame++;
  
          }
  
      }
  
  
  
      protected override void OnRenderFrame(FrameEventArgs e) {
  
          GL.ClearColor(Color4.Purple);
  
          GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
  
  
  
          BitmapData data = vidbmp.LockBits(new Rectangle(0, 0, vidbmp.Width, vidbmp.Height), ImageLockMode.ReadOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
  
          GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, data.Width, data.Height, 0, OpenTK.Graphics.OpenGL.PixelFormat.Bgra, PixelType.UnsignedByte, data.Scan0);
  
          vidbmp.UnlockBits(data);
  
          vidbmp.Dispose();
  
  
  
          SwapBuffers();
  
  
  
      }
  
  }