How to manually modify exposure in the nvmipp_raw sample?

The DW version I use is 0.6.

I worked next directory
/home/SK/NVIDIA/Drive/5050bL_SDK/DriveSDK/drive-t186ref-linux/samples/nvmedia/ipp_raw

&
I want using next source
drive-t186ref-linux/samples/nvmedia/sample_plugin/sample_plugin.c

I added printf (“HI”) to any function to verify that the code was executed.

To use it, I run the make file in that directory and move the generated libnv_sampleplugin.so file to drive-t186ref-linux/lib-target

  1. But when I tried it, I could not see printf HI. Why?

  2. How do I use the NvSampleACPProcess(from sample_plugin.c) function in ipp_raw?

OK

I solved it.

I saw the following document, what does LAC, FLICKERBAND, HISTOGRAM mean?
https://docs.nvidia.com/drive/archive/5.0.5.0bL/nvvib_docs/NVIDIA%20DRIVE%20Linux%20SDK%20Development%20Guide/baggage/structNvMediaIPPPluginInputStreamData.html

Thanks