/// <summary>
/// Add a new frame to the GIF
/// </summary>
/// <param name="image">The image to add to the GIF stack</param>
/// <param name="delay">The delay in milliseconds this GIF will be delayed (-1: Indicating class property delay)</param>
/// <param name="quality">The GIFs quality</param>
public void AddFrame(Image image, int delay = -1, GifQuality quality = GifQuality.Default)
{
var gif = new GifClass();
gif.LoadGifPicture(image, quality);
if (_stream == null)
{
_stream = new FileStream(FilePath, FileMode.Create, FileAccess.Write, FileShare.Read);
_stream.Write(CreateHeaderBlock());
_stream.Write(gif.ScreenDescriptor.ToArray());
_stream.Write(CreateApplicationExtensionBlock(Repeat));
}
_stream.Write(CreateGraphicsControlExtensionBlock(delay > -1 ? delay : Delay));
_stream.Write(gif.ImageDescriptor.ToArray());
_stream.Write(gif.ColorTable.ToArray());
_stream.Write(gif.ImageData.ToArray());
FrameCount++;
}
/// <summary>
/// Add a new frame to the GIF
/// </summary>
/// <param name="image">The image to add to the GIF stack</param>
/// <param name="delay">The delay in milliseconds this GIF will be delayed (-1: Indicating class property delay)</param>
/// <param name="quality">The GIFs quality</param>
public void AddFrame(Image image, int delay = -1, GifQuality quality = GifQuality.Default)
{
var gif = new GifClass();
gif.LoadGifPicture(image, quality);
if (!_createdHeader)
{
AppendToStream(CreateHeaderBlock());
AppendToStream(gif.ScreenDescriptor.ToArray());
AppendToStream(CreateApplicationExtensionBlock(Repeat));
_createdHeader = true;
}
AppendToStream(CreateGraphicsControlExtensionBlock(delay > -1 ? delay : Delay));
AppendToStream(gif.ImageDescriptor.ToArray());
AppendToStream(gif.ColorTable.ToArray());
AppendToStream(gif.ImageData.ToArray());
FrameCount++;
}
/// <summary>
/// Add a new frame to the GIF async
/// </summary>
/// <param name="image">The image to add to the GIF stack</param>
/// <param name="delay">The delay in milliseconds this GIF will be delayed (-1: Indicating class property delay)</param>
/// <param name="quality">The GIFs quality</param>
public async Task AddFrameAsync(Image image, int delay = -1, GifQuality quality = GifQuality.Default, CancellationToken cancellationToken = default(CancellationToken))
{
var gif = new GifClass();
gif.LoadGifPicture(image, quality);
if (!_createdHeader)
{
await AppendToStreamAsync(CreateHeaderBlock(), cancellationToken);
await AppendToStreamAsync(gif.ScreenDescriptor.ToArray(), cancellationToken);
await AppendToStreamAsync(CreateApplicationExtensionBlock(Repeat), cancellationToken);
_createdHeader = true;
}
await AppendToStreamAsync(CreateGraphicsControlExtensionBlock(delay > -1 ? delay : Delay), cancellationToken);
await AppendToStreamAsync(gif.ImageDescriptor.ToArray(), cancellationToken);
await AppendToStreamAsync(gif.ColorTable.ToArray(), cancellationToken);
await AppendToStreamAsync(gif.ImageData.ToArray(), cancellationToken);
FrameCount++;
}
