imx6dl camera digital zoom out

[ifzhao]

hi all,

My platform imx6dl+BSP android 4.3+mipi sensor ov5645, capturing and recording are all done. However, I'd like to zoom out the preview stream and capture stream while previewing. How can I do that with v4l2? 

I've tried the PRP_ENC instead of CSI_ENC. S_CROP and ipu_csi_set_window_size is also used, but can't achieve that.

Could anyone kindly tell me how to do this ? Thanks!

[joanxie]

zoom function is controlled by IPU, but I just have patch for r13.4, I attached it, hope helpful for you.