/// <summary>
/// Gets width and height of video from video StreamInfo, then applies <see cref="UtilsCommon.GetMaxScaling">.
/// </summary>
public static double GetMaxScalingByStreamInfo(StreamInfo videoStreamInfo, double maxWidth, double maxHeight, Settings.RescaleModeEnum rescaleMode)
{
if (rescaleMode == Settings.RescaleModeEnum.NoRescaling)
{
return(1);
}
// get size of image in video streams
Int32?videoWidth = videoStreamInfo.GetAttributeInt("width");
Int32?videoHeight = videoStreamInfo.GetAttributeInt("height");
if (videoWidth == null)
{
videoWidth = -1; // ignore this dimension
}
if (videoHeight == null)
{
videoHeight = -1; // ignore this dimension
}
return(UtilsCommon.GetMaxScaling(videoWidth.Value, videoHeight.Value, maxWidth, maxHeight, rescaleMode == Settings.RescaleModeEnum.Downscale));
}
