public BitmapRequestBuilder<ModelType, TranscodeType> videoDecoder(
            ResourceDecoder<ParcelFileDescriptor, Bitmap> decoder) {
        videoDecoder = decoder;
        super.decoder(new ImageVideoBitmapDecoder(imageDecoder, decoder));
        return this;
    }
Sets the {@link ResourceDecoder} that will be used to decode {@link Bitmap}s obtained
from an {@link ParcelFileDescriptor}.

@param decoder The decoder to use to decode {@link Bitmap}s.
@return This request builder.
core/src/main/java/com/bumptech/glide/BitmapRequestBuilder.java