89 lines
1.7 KiB
C#
89 lines
1.7 KiB
C#
using System;
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using System.IO;
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namespace MoonWorks.Video
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{
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public unsafe class VideoAV1 : IDisposable
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{
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public IntPtr Handle => handle;
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IntPtr handle;
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public int Width => width;
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public int Height => height;
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public double FramesPerSecond => 28.97;
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public Dav1dfile.PixelLayout PixelLayout => pixelLayout;
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public int UVWidth { get; }
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public int UVHeight { get; }
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private int width;
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private int height;
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private double fps;
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private Dav1dfile.PixelLayout pixelLayout;
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bool IsDisposed;
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public VideoAV1(string filename)
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{
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if (!File.Exists(filename))
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{
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throw new ArgumentException("Video file not found!");
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}
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if (Dav1dfile.df_fopen(filename, out handle) == 0)
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{
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throw new Exception("Failed to open video file!");
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}
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Dav1dfile.df_videoinfo(Handle, out width, out height, out pixelLayout);
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if (pixelLayout == Dav1dfile.PixelLayout.I420)
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{
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UVWidth = Width / 2;
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UVHeight = Height / 2;
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}
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else if (pixelLayout == Dav1dfile.PixelLayout.I422)
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{
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UVWidth = Width / 2;
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UVHeight = Height;
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}
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else if (pixelLayout == Dav1dfile.PixelLayout.I444)
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{
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UVWidth = width;
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UVHeight = height;
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}
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else
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{
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throw new NotSupportedException("Unrecognized YUV format!");
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}
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}
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protected virtual void Dispose(bool disposing)
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{
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if (!IsDisposed)
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{
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if (disposing)
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{
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// dispose managed state (managed objects)
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}
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// free unmanaged resources (unmanaged objects)
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Dav1dfile.df_close(Handle);
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IsDisposed = true;
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}
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}
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~VideoAV1()
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{
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Dispose(disposing: false);
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}
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public void Dispose()
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{
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// Do not change this code. Put cleanup code in 'Dispose(bool disposing)' method
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Dispose(disposing: true);
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GC.SuppressFinalize(this);
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}
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}
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}
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