@Override
    public Encoder<ImageVideoWrapper> getSourceEncoder() {
        return sourceEncoder;
    }
An {@link DataLoadProvider} that can load either an
{@link GifDrawable} or an {@link Bitmap} from either an
{@link InputStream} or an {@link android.os.ParcelFileDescriptor}.
core/src/main/java/com/bumptech/glide/load/resource/gifbitmap/ImageVideoGifDrawableLoadProvider.java