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NGif, Animated GIF Encoder for .NET

, 1 Sep 2005 CPOL
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Create animated GIF images using C#.

Sample Image - NGif.gif

Introduction

Because .NET Framework can't create animated GIF images, NGif provides a way to create GIF animations in the .NET framework. It can create an animated GIF from several images and extract images from an animated GIF.

Using the code

/* 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 );
}

Points of Interest

Use Stream to replace BinaryWriter when you write a fixed-byte structured binary file.

History

  • 31 Aug 2005: Draft.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

gOODiDEA.NET

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Comments and Discussions

 
AnswerRe: Bugfixed version Pinmemberclass_Volrath28-Jun-14 13:19 
AnswerRe: Bugfixed version Pinmemberhorsedrowner30-Jun-14 8:13 
GeneralMy vote of 5 Pinmembermanoj kumar choubey4-Mar-12 20:47 
Bug[Bug] Last two pixels of every frame is wrong. Pinmembercodipro7-Jan-12 3:14 
GeneralRe: [Bug] Last two pixels of every frame is wrong. Pinmembermorhost28-Feb-12 5:51 
GeneralRe: [Bug] Last two pixels of every frame is wrong. PinmemberMember 1034753121-Oct-13 9:23 
GeneralTransperency PinmemberJeremiasK24-Feb-11 8:45 
GeneralRe: Transperency Pinmemberv2leon28-Aug-11 23:49 
i got this problem too…… SetTransperency only works on first frame :(
GeneralRe: Transperency Pinmembermaoshu22-Dec-12 1:14 
GeneralRe: Transperency PinmemberFroogabadoodle4-Jun-13 5:48 
QuestionSecurity Warning [modified] Pinmemberjedi-samurai18-Dec-10 22:53 
AnswerRe: Security Warning [modified] PinmemberJajnick1-Sep-12 6:14 
GeneralLZWEncoder Pinmembertom roarty12-Dec-10 5:59 
QuestionGifDecoder.cs exceptions PinmemberDivya Muppa29-Sep-10 11:16 
GeneralTransparency Pinmembergameguy2716-Aug-10 7:39 
GeneralBug involving the first frame PinmemberDataflashsabot23-Jan-10 3:56 
GeneralI've released a derived work Pinmembersbridewell24-Oct-09 11:44 
GeneralRe: I've released a derived work Pinmemberjambonbill3-Nov-09 16:39 
General"The process cannot access the file xpto because it is being used by another process". Pinmemberchico@dsi30-Sep-09 0:52 
GeneralRe: "The process cannot access the file xpto because it is being used by another process". PinmemberRassler481-Mar-13 2:16 
QuestionCan I release a derived work please? Pinmembersbridewell4-Sep-09 10:12 
AnswerRe: Can I release a derived work please? Pinmemberjambonbill6-Oct-09 4:04 
GeneralRe: Can I release a derived work please? Pinmembersbridewell6-Oct-09 11:54 
GeneralRe: Can I release a derived work please? Pinmemberjambonbill6-Oct-09 15:50 
GeneralRe: Can I release a derived work please? [modified] Pinmembersbridewell7-Oct-09 10:10 

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