Android webp encoder decoder for Webp and Animated Webp

The library is a powerful and versatile tool for working with animated WebP images. It provides the functionality to encode and decode animated WebP files, allowing developers to create and manipulate animated WebP images with ease.

How to

To get a Git project into your build:

Step 1. Add the JitPack repository to your build file

gradle maven sbt leiningen Add it in your root build.gradle at the end of repositories:

allprojects {
	repositories {
		...
		maven { url 'https://jitpack.io' }
	}
}

Step 2. Add the dependency

dependencies {
        implementation 'com.github.KishorJena:Webp_Transcoder:1.1'
}

For maven: Step 1. Add the JitPack repository to your build file

<repositories>
	<repository>
	    <id>jitpack.io</id>
	    <url>https://jitpack.io</url>
	</repository>
</repositories>

Step 2. Add the dependency

<dependency>
    <groupId>com.github.KishorJena</groupId>
    <artifactId>Webp_Transcoder</artifactId>
    <version>Tag</version>
</dependency>

Usage example:

• you can use this to apply transfromations or animate.
• add frames to AnimationDrawable and start the animation
• create tools

Decoder:

        WebpAnimatedDecoder deocder = new WebpAnimatedDecoder(new File(inFile));
        List<ProcessedFrames> processedFrames = deocder.decode();

        List<Bitmap> bitmaps = new ArrayList<>();
        for(int i = 0; i < processedFrames.size()-1; i++){
            ProcessedFrames processedFrame = processedFrames.get(i);
            Bitmap bitmap = processedFrame.bitmap;
            bitmaps.add(bitmap);
        }
        encodeFrames(outFile, bitmaps);

Encoder:

        WebpBitmapEncoder encoder = new WebpBitmapEncoder(new File(outFile));
        encoder.setLoops(0);
        for(int i=0; i<frame.size()-1; i++){
            encoder.setDuration(80);
            encoder.writeFrame(frame.get(i),80);
        }
        encoder.close();

You should use Thread or AsynTask to prevent UI freezing.

            
new Thread(new Runnable() {
            @Override
            public void run() {
                
				// Do long running task here
				
                // (opitional) update UI on main thread here
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        textView.setText("Task Complete");
                    }
                });
            }
        }).start();

Make sure to import the necessary classes and adjust the code based on your specific requirements and class/package names.

import com.n4no.webpencoder.webp.codec.WebpAnimatedDecoder;
import com.n4no.webpencoder.webp.codec.WebpBitmapEncoder;
import com.n4no.webpencoder.webp.utils.Logs;
import com.n4no.webpencoder.webp.webpData.AnimationData;
import com.n4no.webpencoder.webp.webpData.ProcessedFrames;

Tip: If disposal is false then previous frame won't get removed. blending should be true for 'No Blending'