Programmatically save/convert image to webp format

Question

Can bitmap be converted or saved to the webp format in android?

I search out for that but it turns out to be a dead end for me.

I need to save image to webp formate or else need to save in PNG/JPEG then convert to webp programmatically.

score 11 · Answer 1 · answered Nov 13 '18 at 09:14

11

You can use CompressFormat.WEBP to encode any bitmap in WEBP format.

Example:

FileOutputStream out = new FileOutputStream(path); 
bitmap.compress(Bitmap.CompressFormat.WEBP, 100, out);
out.close();

answered Nov 13 '18 at 09:14

Nabin Bhandari

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Does this have the same properties of webp file we convert using android studio? – Vivek Faldu Nov 13 '18 at 09:21
No idea what properties you are talking about. Just give it a shot once. – Nabin Bhandari Nov 13 '18 at 09:22
Hi. Was the try worth? – Selast Lambou May 01 '19 at 11:58
How to replace EXIF data of JPEG/PNG to Webp image? – hpAndro Aug 04 '19 at 09:49
@hpAndro There is no direct way of changing EXIF data in Android SDK. You will need to do it manually by changing byte values. For that instead of directly compressing image to `FileOutputStream`, use an intermediate `ByteArrayOutputStream`, get the bytes and change the EXIF values. – Nabin Bhandari Aug 04 '19 at 10:40
@NabinBhandari it will work for .webp? because I am getting error like Caused by: java.io.IOException: ExifInterface only supports saving attributes on JPEG formats. while featching from .webp file. – hpAndro Aug 04 '19 at 14:08
I'm not sure. You can give it a try, but it is extremely difficult. – Nabin Bhandari Aug 04 '19 at 14:46
1

how to convert gif to webp in android? – tej shah Feb 09 '21 at 14:01
@tejshah If the GIF image has only one frame, decode the image to get a `Bitmap`. Then, compress the `Bitmap` in WEBP format. – Nabin Bhandari Feb 10 '21 at 12:48
1

@NabinBhandari thank for the replay. No my gif is more then 10 frame. any idea to do that? – tej shah Feb 10 '21 at 13:55
You have 10 frames in gif. Do you want each frame to be saved as individual webp file or just want to convert gif into animated webp file? – CrackerKSR Aug 08 '22 at 04:39

score 2 · Answer 2 · answered Nov 17 '22 at 13:00

Since Bitmap.CompressFormat.WEBP is deprecated in Android 30, use as below

FileOutputStream(file).use { out ->
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
       bmp.compress(
       Bitmap.CompressFormat.WEBP_LOSSLESS, // or WEBP_LOSSY
       100,out)    
    } else {
       bmp.compress(Bitmap.CompressFormat.WEBP,100,out)
    }
}

Programmatically save/convert image to webp format

2 Answers2