public static byte[] GetThumbnailGIF89a(Stream stream, Size min, Size thumb)
{
long offset = stream.Position;
GifDecoder decoder = new GifDecoder();
decoder.Read(stream);
Size sz = decoder.GetFrameSize();
stream.Seek(offset, SeekOrigin.Begin);
if (min != null && sz.Width < min.Width && sz.Height < min.Height)
{
throw new InvalidImageSizeException(
string.Empty, sz, min);
}
return GetResizedImageBytesGIF89a(decoder, stream, thumb, s_ImageQuality);
}
static void Main(string[] args)
{
/* create Gif */
//you should replace filepath
String [] imageFilePaths = new String[]{"c:\\01.png","c:\\02.png","c:\\03.png"};
String outputFilePath = "c:\\test.gif";
AnimatedGifEncoder e = new AnimatedGifEncoder();
e.Start( outputFilePath );
e.SetDelay(500);
//-1:no repeat,0:always repeat
e.SetRepeat(0);
for (int i = 0, count = imageFilePaths.Length; i < count; i++ )
{
e.AddFrame( Image.FromFile( imageFilePaths[i] ) );
}
e.Finish();
/* extract Gif */
string outputPath = "c:\\";
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read( "c:\\test.gif" );
for ( int i = 0, count = gifDecoder.GetFrameCount(); i < count; i++ )
{
Image frame = gifDecoder.GetFrame( i ); // frame i
frame.Save( outputPath + Guid.NewGuid().ToString() + ".png", ImageFormat.Png );
}
}
public void TestLoadGIF89a()
{
GifDecoder a_decoder = new GifDecoder();
Stream sm = Assembly.GetExecutingAssembly().GetManifestResourceStream("SnCore.Tools.Tests.Images.animated.gif");
Console.WriteLine("Bytes: {0}", sm.Length);
a_decoder.Read(sm);
Console.WriteLine("Frames: {0}", a_decoder.GetFrameCount());
sm.Seek(0, SeekOrigin.Begin);
Assert.IsNotNull(sm);
ThumbnailBitmap b = new ThumbnailBitmap(sm);
Console.WriteLine("Size: {0}x{1}", b.FullSize.Width, b.FullSize.Height);
Assert.AreEqual(new Size(320, 240), b.FullSize);
Assert.IsNotNull(b.Thumbnail);
Assert.IsNotNull(b.Bitmap);
ThumbnailBitmap th = new ThumbnailBitmap(b.Thumbnail);
Console.WriteLine("Size: {0}x{1}", th.FullSize.Width, th.FullSize.Height);
Assert.AreEqual(new Size(150, 100), th.FullSize);
// make sure that the bitmap is still animated
Console.WriteLine("Bytes: {0}", b.Bitmap.Length);
GifDecoder decoder = new GifDecoder();
decoder.Read(new MemoryStream(b.Bitmap));
Console.WriteLine("Frames: {0}", decoder.GetFrameCount());
GifDecoder th_decoder = new GifDecoder();
Console.WriteLine("Bytes: {0}", b.Thumbnail.Length);
th_decoder.Read(new MemoryStream(b.Thumbnail));
Console.WriteLine("Frames: {0}", th_decoder.GetFrameCount());
Assert.AreEqual(th_decoder.GetFrameCount(), decoder.GetFrameCount());
}
public static void Resize(GifDecoder decoder, Stream outStream, int width, int height, int quality)
{
AnimatedGifEncoder encoder = new AnimatedGifEncoder();
Size sourcesize = decoder.GetFrameSize();
encoder.SetSize(sourcesize.Width < sourcesize.Height ? new Size(width, height) : new Size(height, width));
encoder.SetRepeat(decoder.GetLoopCount());
// encoder.SetQuality(quality);
encoder.Start(outStream);
for (int i = 0; i < decoder.GetFrameCount(); i++)
{
GifDecoder.GifFrame frame = decoder.GetFrame(i);
encoder.SetDelay(frame.delay);
encoder.SetTransparent(Color.FromArgb(frame.bgcolor));
encoder.AddFrame(decoder.GetFrameImage(i));
}
encoder.Finish();
outStream.Flush();
}
public void ConsumeAnimatedGIFTest()
{
MemoryStream ms = new MemoryStream();
AnimatedGifEncoder encoder = new AnimatedGifEncoder();
// encoder.SetDelay(200);
encoder.SetFrameRate(5);
encoder.Start(ms);
for (char i = 'a'; i <= 'z'; i++)
{
Console.Write(i.ToString());
encoder.AddFrame(ThumbnailBitmap.GetBitmapFromText(i.ToString(), 48, 100, 200));
}
Console.WriteLine();
encoder.Finish();
ms.Flush();
ms.Seek(0, SeekOrigin.Begin);
GifDecoder decoder = new GifDecoder();
decoder.Read(ms);
Console.WriteLine("Frames: {0}", decoder.GetFrameCount());
Assert.AreEqual(26, decoder.GetFrameCount());
}
private void button1_Click(object sender, EventArgs e)
{
String[] imageFilePaths = new String[] { "C:\\2.png", "C:\\3.png" };
String outputFilePath = "C:\\ani.gif";
AnimatedGifEncoder ec = new AnimatedGifEncoder();
ec.Start(outputFilePath);
ec.SetDelay(500);
//-1:no repeat,0:always repeat
ec.SetRepeat(0);
for (int i = 0, count = imageFilePaths.Length; i < count; i++)
{
ec.AddFrame(Image.FromFile(imageFilePaths[i]));
}
ec.Finish();
/* extract Gif */
string outputPath = "c:\\";
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read("c:\\test.gif");
for (int i = 0, count = gifDecoder.GetFrameCount(); i < count; i++)
{
Image frame = gifDecoder.GetFrame(i); // frame i
frame.Save(outputPath + Guid.NewGuid().ToString() + ".png", System.Drawing.Imaging.ImageFormat.Png);
}
}
public static void GenerateAvatar(int userID, string stringInDatabase)
{
string extension = Path.GetExtension(stringInDatabase);
string fileName = SetupManager.GetAvatarFilename(userID, stringInDatabase);// userID + extension;
string srcPath = SetupManager.GetSrcAvatarPath(userID, stringInDatabase);
string tempFileName = fileName.Replace("\\", "/").Replace(userID + "/", "");
string bigAvatarPath = IOUtil.JoinPath(bigAvatarOutputPath, tempFileName);
string smallAvatarPath = IOUtil.JoinPath(smallAvatarOutputPath, tempFileName);
string normalAvatarPath = IOUtil.JoinPath(normalAvatarOutputPath, tempFileName);
string bigDir = bigAvatarPath.Replace("/", "\\");
bigDir = bigDir.Substring(0, bigDir.LastIndexOf("\\"));
string smallDir = smallAvatarPath.Replace("/", "\\");
smallDir = smallDir.Substring(0, smallDir.LastIndexOf("\\"));
string normalDir = normalAvatarPath.Replace("/", "\\");
normalDir = normalDir.Substring(0, normalDir.LastIndexOf("\\"));
if (Directory.Exists(bigDir) == false)
Directory.CreateDirectory(bigDir);
if (Directory.Exists(smallDir) == false)
Directory.CreateDirectory(smallDir);
if (Directory.Exists(normalDir) == false)
Directory.CreateDirectory(normalDir);
if (string.Compare(".gif", extension, true) == 0)
{
GifDecoder gifDecoder = new GifDecoder();
if (gifDecoder.Read(srcPath) == GifDecoder.STATUS_OK)
{
GenerateThumbGif(gifDecoder, smallAvatarPath, smallAvatarSize);
GenerateThumbGif(gifDecoder, normalAvatarPath, normalAvatarSize);
GenerateThumbGif(gifDecoder, bigAvatarPath, bigAvatarSize);
}
else
{
using (Image image = Image.FromFile(srcPath))
{
GenerateThumb(image, smallAvatarPath, smallAvatarSize);
GenerateThumb(image, normalAvatarPath, normalAvatarSize);
GenerateThumb(image, bigAvatarPath, bigAvatarSize);
}
}
}
else
{
using (Image image = Image.FromFile(srcPath))
{
GenerateThumb(image, smallAvatarPath, smallAvatarSize);
GenerateThumb(image, normalAvatarPath, normalAvatarSize);
GenerateThumb(image, bigAvatarPath, bigAvatarSize);
}
}
}
private static void GenerateThumbGif(GifDecoder decoder, string thumbPath, Size thumbSize)
{
GifEncoder encoder = new GifEncoder();
encoder.Start(thumbPath);
encoder.SetSize(thumbSize.Width, thumbSize.Height);
encoder.SetRepeat(decoder.GetLoopCount());
Bitmap bitmap = new Bitmap(thumbSize.Width, thumbSize.Height);
for (int i = 0; i < decoder.GetFrameCount(); i++)
{
encoder.SetDelay(decoder.GetDelay(i));
int dispose = decoder.GetDispose(i);
Color tranColor = decoder.GetTransparent(i);
if (tranColor.IsEmpty == false)
encoder.SetTransparent(decoder.GetTransparent(i));
if (dispose != 1)
{
bitmap.Dispose();
bitmap = new Bitmap(thumbSize.Width, thumbSize.Height);
}
using (Graphics g = Graphics.FromImage(bitmap))
{
if (dispose == 2)
{
g.FillRectangle(new SolidBrush(tranColor), 0, 0, thumbSize.Width, thumbSize.Height);
}
//else if(dispose == 5)
//{
// g.FillRectangle(new SolidBrush(Color.Black), 0, 0, thumbSize.Width, thumbSize.Height);
//}
g.DrawImage(decoder.GetFrame(i), 0, 0, thumbSize.Width, thumbSize.Height);
}
encoder.AddFrame(bitmap);
}
bitmap.Dispose();
//using (Bitmap bitmap = new Bitmap(thumbSize.Width, thumbSize.Height))
//{
// for (int i = 0; i < decoder.GetFrameCount(); i++)
// {
// encoder.SetDelay(decoder.GetDelay(i));
// Color tran = decoder.GetTransparent(i);
// using (Graphics g = Graphics.FromImage(bitmap))
// {
// if (tran != Color.Empty)
// {
// g.FillRectangle(new SolidBrush(tran), 0, 0, thumbSize.Width, thumbSize.Height);
// }
// else
// {
// }
// g.DrawImage(decoder.GetFrame(i), 0, 0, thumbSize.Width, thumbSize.Height);
// }
// encoder.AddFrame(bitmap);
// }
//}
encoder.Finish();
}
public static void Resize(GifDecoder decoder, Stream outStream, int width, int height, int quality)
{
AnimatedGifEncoder encoder = new AnimatedGifEncoder();
Size sourcesize = decoder.GetFrameSize();
encoder.SetSize(sourcesize.Width < sourcesize.Height ? new Size(width, height) : new Size(height, width));
encoder.SetRepeat(decoder.GetLoopCount());
// encoder.SetQuality(quality);
encoder.Start(outStream);
for (int i = 0; i < decoder.GetFrameCount(); i++)
{
GifDecoder.GifFrame frame = decoder.GetFrame(i);
encoder.SetDelay(frame.delay);
encoder.SetTransparent(Color.FromArgb(frame.bgcolor));
encoder.AddFrame(decoder.GetFrameImage(i));
}
encoder.Finish();
outStream.Flush();
}
/*
* Resize an animated GIF
*/
public static void Resize(Stream inStream, Stream outStream, int width, int height, int quality)
{
GifDecoder decoder = new GifDecoder();
decoder.Read(inStream);
Resize(decoder, outStream, width, height, quality);
}
internal void DoInverseButterTransform_gif(string filepathToOpen, string filepathToSave, bool decrypt, string password = "")
{
GifDecoder gifDecoder = new GifDecoder();
gifDecoder.Read(filepathToOpen);
List<Bitmap> frames = new List<Bitmap>();
for (int i = 0, count = gifDecoder.GetFrameCount(); i < count; i++)
{
frames.Add(new Bitmap(gifDecoder.GetFrame(i))); // frame i
}
throw new NotImplementedException("Not yet implemented");
byte[] payload = getPayloadFromImage(frames[1], decrypt, password);
//saveBytesToFile(payload, filepathToSave);
}
public static byte[] GetResizedImageBytesGIF89a(GifDecoder originalimage, Stream stream, Size ts, int quality)
{
Size sz = originalimage.GetFrameSize();
if (sz.Height > ts.Height || sz.Width > ts.Width)
{
MemoryStream ms = new MemoryStream();
AnimatedGifEncoder.Resize(originalimage, ms, ts.Width, ts.Height, quality);
ms.Flush();
byte[] result = new byte[ms.Length];
MemoryStream resultstream = new MemoryStream(result);
ms.WriteTo(resultstream);
return result;
}
else
{
stream.Seek(0, SeekOrigin.Begin);
BinaryReader sr = new BinaryReader(stream);
return sr.ReadBytes((int)stream.Length);
}
}
public static bool TryGetResizedImageBytesGIF89a(Stream stream, Size ts, int quality, out Size sz, out byte[] bytes)
{
bytes = null;
sz = default(Size);
GifDecoder originalimage = new GifDecoder();
if (!originalimage.TryRead(stream))
return false;
sz = originalimage.GetFrameSize();
bytes = GetResizedImageBytesGIF89a(originalimage, stream, ts, quality);
return true;
}
public static byte[] GetResizedImageBytesGIF89a(Stream stream, Size ts, int quality, out Size sz)
{
GifDecoder originalimage = new GifDecoder();
originalimage.Read(stream);
sz = originalimage.GetFrameSize();
return GetResizedImageBytesGIF89a(originalimage, stream, ts, quality);
}
public void TestResizeTransparentGIF89()
{
Stream sm = Assembly.GetExecutingAssembly().GetManifestResourceStream("SnCore.Tools.Tests.Images.transparent.gif");
// load original image in decoder
GifDecoder originaldecoder = new GifDecoder();
originaldecoder.Read(sm);
sm.Seek(0, SeekOrigin.Begin);
GifDecoder.GifFrame frame = originaldecoder.GetFrame(0);
Console.WriteLine("Transparency: {0} - {1}", frame.transparency, Color.FromArgb(frame.bgcolor));
// load in ThumnailBitmap
Assert.IsNotNull(sm);
ThumbnailBitmap b = new ThumbnailBitmap(sm);
Console.WriteLine("Size: {0}x{1}", b.FullSize.Width, b.FullSize.Height);
// Assert.AreEqual(b.FullSize, new Size(227, 227));
Assert.IsNotNull(b.Thumbnail);
Assert.IsNotNull(b.Bitmap);
// reload in decoder, verify transparency
GifDecoder decoder = new GifDecoder();
decoder.Read(new MemoryStream(b.Bitmap));
frame = decoder.GetFrame(0);
Console.WriteLine("Transparency: {0} - {1}", frame.transparency, Color.FromArgb(frame.bgcolor));
//FileStream f = File.Create("C:\\temp\\chefout.gif");
//f.Write(b.Bitmap, 0, b.Bitmap.Length);
//f.Close();
//f = File.Create("C:\\temp\\chefthumbnail.gif");
//f.Write(b.Thumbnail, 0, b.Thumbnail.Length);
//f.Close();
}
public void TestTooSmallGIF89()
{
Stream sm = Assembly.GetExecutingAssembly().GetManifestResourceStream("SnCore.Tools.Tests.Images.small.gif");
// load original image in decoder
GifDecoder originaldecoder = new GifDecoder();
originaldecoder.Read(sm);
sm.Seek(0, SeekOrigin.Begin);
GifDecoder.GifFrame frame = originaldecoder.GetFrame(0);
Console.WriteLine("Transparency: {0} - {1}", frame.transparency, Color.FromArgb(frame.bgcolor));
// load in ThumnailBitmap
Assert.IsNotNull(sm);
ThumbnailBitmap b = new ThumbnailBitmap(sm);
Console.WriteLine("Size: {0}x{1}", b.FullSize.Width, b.FullSize.Height);
}
