/// <summary>
/// Format a video crop argument for ffmpeg.
/// </summary>
public static string formatCropArg(string file, ImageSize size, ImageCrop crop)
{
ImageSize outSize = UtilsVideo.getResolutionToUseWithCrop(file, size, crop);
string cropArg = String.Format("crop={0}:{1}:{2}:{3}",
outSize.Width - crop.Left - crop.Right, // {0}
outSize.Height - crop.Top - crop.Bottom, // {1}
crop.Left, // {2}
crop.Top); // {3}
return(cropArg);
}
