How to Replace NvBufSurf using cv::Mat

[fanzh]

some references:

DeepStream SDK FAQ

13. [DS 5.x_All_App] How to access and modify the NvBufSurface Refer Deepstream sample code snippet - #3 by bcao

Image processing on gpu using output from sgie

I’m working on a detection (pgie) - alignment (image processing) - recognition(sgie) pipeline. I want to use the output from detection (key points) and full frame to do alignment before feeding the aligned image to sgie. The point here is keeping the whole pipeline on gpu. Can you give me some suggestions?

How to convert NvBufSurface to cv::Mat

Hello, Could you refer me to some sample implementation for converting the NvBufSurface to std::vector of cv::Mat. The deepstream-appsrc-test does not access the buffer it only access the metadata. I have tried this code to access the buffer and I can access it but I can not convert it. NvBufSurface *surface = NULL; memset(&in_map_info, 0, sizeof(in_map_info)); if (!gst_buffer_map(buf, &in_map_info, GST_MAP_READ)) { g_print("Error: Failed to map gst buffer\n"); } surface = (NvBufSurface *)in_…