C# 将位图转换为 FFmediaToolkits ImageData

Question

我有标准 System.Drawing.Bitmap，我需要将其转换为 FFMediaToolkit.Graphics.ImageData。我怎样才能做到这一点？

我试过了：

ImageData.FromArray((byte[]) converter.ConvertTo(frame, typeof(byte[])),
                ImagePixelFormat.Argb32, frame.Width,frame.Height)

但它确实给了我这个错误：

Unhandled exception. System.ArgumentException: Pixel buffer size doesn't match size required by this image format.

感谢您的帮助

Answer 1

解决方法是：

private static ImageData FrameToImageData(Bitmap bitmap) 
{
    Rectangle rect = new Rectangle(System.Drawing.Point.Empty, bitmap.Size);
    BitmapData bitLock = bitmap.LockBits(rect, ImageLockMode.ReadOnly, PixelFormat.Format24bppRgb);
    ImageData bitmapImageData = ImageData.FromPointer(bitLock.Scan0, ImagePixelFormat.Bgr24, bitmap.Size);
    bitmap.UnlockBits(bitLock);
    return bitmapImageData;
}

C# 将位图转换为 FFmediaToolkits ImageData

C# Convert Bitmap to FFmediaToolkits ImageData

c#

ffmpeg

casting

bitmap

type-conversion