Image save problem: Segmentation fault in nvds_obj_enc_process

[shaunramj]

Please provide complete information as applicable to your setup.

• Hardware Platform: Jetson AGX Orin)
• DeepStream Version: 6.1
• JetPack Version: 5.0.2.
• TensorRT Version: 8.4.1
• Issue Type: Question

I am trying to use the image save feature.

I am calling nvds_obj_enc_process like this:
nvds_obj_enc_process(*img_save_instance->obj_enc_ctx, &userData, ip_surf, obj_meta, frame_meta);

I am getting a segmentation fault in this function call and it never returns.

Following the samples, this is my initialization of userData:

        NvDsObjEncUsrArgs userData = { 0 };
        /* To be set by user */
        userData.saveImg = save_img;
        userData.attachUsrMeta = attach_user_meta;
        /* Set if Image scaling Required */
        userData.scaleImg = FALSE;
        userData.scaledWidth = 0;
        userData.scaledHeight = 0;
        /* Preset */
        userData.objNum = num_rects;
        /* Quality */
        userData.quality = 80;

In this case, userData.fileNameImg will be initialized to 0.
If I do this instead: userData.fileNameImg[0] = '\0',

This function now returns, with this error: Error: Scaled object dimensions cannot be non-positive. Object not encoded.

The seg faut now occurs on the call to nvds_obj_enc_finish:
nvds_obj_enc_finish(*img_save_instance->obj_enc_ctx);

I don’t have the source code to nvds_obj_enc_process so I cannot figure out where this error is coming from. This image save feature was working as expected in Deepstream 5. Any help is appreciated, thanks.

[yuweiw]

Could you run our demo test to verify if that works well?

sources\apps\sample_apps\deepstream-image-meta-test

Also we recommend that you upgrade to our latest version 7.0.

[yingliu]

There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks