We have a customer interested on ROI support for video encoding. Specifically they want to specify a ROI to let the encoder know that some parts of the image could be compressed with higher quantization.
Looking for options I found that the V4L2 API for the encoder seems to have ROI Support:
but when checking the properties of the nvv4l2h264enc element I was not able to find a property to select the ROI or the parameters that the codec should use for it.
- Can we get access to the code for the GStreamer elements based in V4L2 extensions? In order to extend it?
- Have NVIDIA validated that the ROI support works on the codec?
Please note that I don’t want to crop the ROI, I just want the codec using a different quantization on the ROI.