frame to bitmap conversion is too slow

[Muhammad Umair Shafique]

Hi all

    

I am using this to convert frame to bitmap.But it is taking so much time for conversion.

AndroidFrameConverter converter = new AndroidFrameConverter();

converter.convert(frame);

Kindly tell me some other faster way to convert frame to bitmap.

[Samuel Audet]

We'd probably need to use the native JNI interface "jnigraphics" to get
any kind of speed:
https://developer.android.com/ndk/guides/stable_apis.html

We could also use JavaCPP to map those functions to Java :)

Samuel

[Ziju Feng]

Hi Samuel, 

Any updates on this topic? 

I am also trying to convert frame to Bitmap so that I can display the processed frame on Android screen. 

It took around 700ms to convert each frame on my Alcatel idol3 device.

[Samuel Audet]

I think using OpenGL with a shader is the best option here, for example:
http://stackoverflow.com/questions/22456884/how-to-render-androids-yuv-nv21-camera-image-on-the-background-in-libgdx-with-o/22456885#22456885

Samuel