Setup entry point + integrated moonworks stuff

2024-07-05 14:32:58 +02:00
parent e7a4a862be
commit 8334a24fd1
116 changed files with 16988 additions and 3 deletions
@@ -0,0 +1,67 @@
+using System;
+using System.IO;
+using Nerfed.Runtime.Graphics;
+
+namespace Nerfed.Runtime.Video;
+
+/// <summary>
+/// This class takes in a filename for AV1 data in .obu (open bitstream unit) format
+/// </summary>
+public unsafe class VideoAV1 : GraphicsResource
+{
+	public string Filename { get; }
+
+	public int Width => width;
+	public int Height => height;
+	public double FramesPerSecond { get; set; }
+	public Dav1dfile.PixelLayout PixelLayout => pixelLayout;
+	public int UVWidth { get; }
+	public int UVHeight { get; }
+
+	private int width;
+	private int height;
+	private Dav1dfile.PixelLayout pixelLayout;
+
+	/// <summary>
+	/// Opens an AV1 file so it can be loaded by VideoPlayer. You must also provide a playback framerate.
+	/// </summary>
+	public VideoAV1(GraphicsDevice device, string filename, double framesPerSecond) : base(device)
+	{
+		if (!File.Exists(filename))
+		{
+			throw new ArgumentException("Video file not found!");
+		}
+
+		if (Dav1dfile.df_fopen(filename, out IntPtr handle) == 0)
+		{
+			throw new Exception("Failed to open video file!");
+		}
+
+		Dav1dfile.df_videoinfo(handle, out width, out height, out pixelLayout);
+		Dav1dfile.df_close(handle);
+
+		if (pixelLayout == Dav1dfile.PixelLayout.I420)
+		{
+			UVWidth = Width / 2;
+			UVHeight = Height / 2;
+		}
+		else if (pixelLayout == Dav1dfile.PixelLayout.I422)
+		{
+			UVWidth = Width / 2;
+			UVHeight = Height;
+		}
+		else if (pixelLayout == Dav1dfile.PixelLayout.I444)
+		{
+			UVWidth = width;
+			UVHeight = height;
+		}
+		else
+		{
+			throw new NotSupportedException("Unrecognized YUV format!");
+		}
+
+		FramesPerSecond = framesPerSecond;
+
+		Filename = filename;
+	}
+}