public Image GenerateThumbnail(MediaInfo mediaInfo)
{
ValidateMediaInfo(mediaInfo);
EnsureMimeTypeIsSupported(mediaInfo.MimeType);
MediaMetadata mediaMetadata = ExtractMetadata(mediaInfo);
return(GenerateThumbnail(mediaInfo, mediaMetadata));
}
protected override Image GenerateThumbnail(MediaInfo mediaInfo, MediaMetadata mediaMetadata)
{
Bitmap bitmap = new Bitmap(@"..\..\IoTInThePalmOfYourHand.png");
Graphics graphics = null;
try
{
var requiredWith = mediaMetadata.Width;
var requiredHeight = requiredWith * bitmap.Height / bitmap.Width;
var thumbnail = new Bitmap(requiredWith, requiredHeight);
graphics = Graphics.FromImage(thumbnail);
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.DrawImage(bitmap, 0, 0, requiredWith, requiredHeight);
return(thumbnail);
}
finally
{
graphics?.Dispose();
bitmap.Dispose();
}
}
protected abstract Image GenerateThumbnail(MediaInfo mediaInfo, MediaMetadata mediaMetadata);
protected override Image GenerateThumbnail(MediaInfo mediaInfo, MediaMetadata mediaMetadata)
{
Console.WriteLine("MediaThumbnailerVideo.GenerateThumbnail");
return(CreateImage(480, 270, Color.DarkBlue, Color.WhiteSmoke, "I am a Video Thumbnail"));
}
protected override Image GenerateThumbnail(MediaInfo mediaInfo, MediaMetadata mediaMetadata)
{
Console.WriteLine("MediaThumbnailerAudio.GenerateThumbnail");
return(CreateImage(300, 300, Color.DarkOliveGreen, Color.White, "I am an Audio Thumbnail"));
}
