Hi,
In default release YUV420 limited range is supported. You would need to check the source code and do customization to support YUV420 extended range. Please download source code package and check nvarguscamerasrc and nvvidconv plugin. The buffers are all in
NvBufferColorFormat_YUV420 . For supporting YUV420 extended range, would need to modify the format to NvBufferColorFormat_YUV420_ER , and rebuild/replace the plugins.