Introduce CVideoStream for easier video handling (already includes a texture, important for common usage of streams)

VocaluxeLib/CVideoStream.cs

@@ -0,0 +1,45 @@
+using VocaluxeLib.Draw;
+
+namespace VocaluxeLib
+{
+    public class CVideoStream
+    {
+        public int ID { get; private set; }
+        public CTextureRef Texture;
+        /// The actual position in s of the returned frame. Should be ~ time+VideoGap
+        public float VideoTime;
+
+        public CVideoStream(int id)
+        {
+            ID = id;
+        }
+
+        ~CVideoStream()
+        {
+            if (ID >= 0)
+            {
+                CVideoStream tmp = this;
+                CBase.Video.Close(ref tmp);
+            }
+        }
+
+        /// <summary>
+        ///     Should only be used by video decoders<br />
+        ///     Set's this stream to closed state and frees the texture
+        /// </summary>
+        public void SetClosed()
+        {
+            ID = -1;
+            CBase.Drawing.RemoveTexture(ref Texture);
+        }
+
+        /// <summary>
+        ///     Returns true if the video stream is closed
+        /// </summary>
+        /// <returns></returns>
+        public bool IsClosed()
+        {
+            return ID < 0;
+        }
+    }
+}