Rotate byte array of JPEG after onPictureTaken

Question

Is there a way to rotate byte array without decoding it to Bitmap?

Currently in jpeg PictureCallback I just write byte array directly to file. But pictures are rotated. I would like to rotate them without decoding to bitmap with hope that this will conserve my memory.

    BitmapFactory.Options o = new BitmapFactory.Options();
    o.inJustDecodeBounds = true;
    BitmapFactory.decodeByteArray(data, 0, data.length, o);

    int orientation;
    if (o.outHeight < o.outWidth) {
        orientation = 90;
    } else {
        orientation = 0;
    }

    File photo = new File(tmp, "demo.jpeg");

    FileOutputStream fos;
    BufferedOutputStream bos = null;
    try {
        fos = new FileOutputStream(photo);
        bos = new BufferedOutputStream(fos);
        bos.write(data);
        bos.flush();
    } catch (IOException e) {
        Log.e(TAG, "Failed to save photo", e);
    } finally {
        IOUtils.closeQuietly(bos);
    }

Answer 1

I don't think that there is such possibility. Bytes order depends from picture encoding (png, jpeg). So you are forced to decode image to do something with it.