I try to fix several code from ajayskabadi2012 code and I have an error too. Here is my code static GstPadProbeReturn gie_img_prob_new (GstPad * pad, GstPadProbeInfo * info, gpointer u_data) { GstBuffer *buf = (GstBuffer *) info->data; GstMapInfo inmap = GST_MAP_INFO_INIT; NvDsObjEncCtxHandle ctx = (NvDsObjEncCtxHandle) u_data; NvBufSurface *ip_surf = (NvBufSurface *) inmap.data; gst_buffer_unmap (buf, &inmap); NvDsObjectMeta *obj_meta = NULL; NvDsMetaList *l_frame = NULL; NvDsMetaList *l_obj = NULL; NvDsBatchMeta *batch_meta = gst_buffer_get_nvds_batch_meta (buf); if (!gst_buffer_map (buf, &inmap, GST_MAP_READ)) { GST_ERROR ("input buffer mapinfo failed"); return GST_PAD_PROBE_OK; } for (l_frame = batch_meta->frame_meta_list; l_frame != NULL; l_frame = l_frame->next) { NvDsFrameMeta *frame_meta = (NvDsFrameMeta *) (l_frame->data); for (l_obj = frame_meta->obj_meta_list; l_obj != NULL; l_obj = l_obj->next) { obj_meta = (NvDsObjectMeta *) (l_obj->data); /* Conditions that user needs to set to encode the detected objects of * interest. Here, by default all the detected objects are encoded. * For demonstration, we will encode the first object in the frame */ if (obj_meta->class_id == 0 || obj_meta->class_id == 2 || obj_meta->class_id == 3 || obj_meta->class_id == 5 || obj_meta->class_id == 7) { printf("%d\n", obj_meta->class_id); NvDsObjEncUsrArgs userData = { 0 }; /* To be set by user */ userData.saveImg = FALSE; userData.attachUsrMeta = TRUE; /* Preset */ userData.objNum = 1; /*Main Function Call */ **nvds_obj_enc_process (ctx, &userData, ip_surf, obj_meta, frame_meta);** } } } nvds_obj_enc_finish (ctx); return GST_PAD_PROBE_OK; } and here is code inside create_common_elements function. NvDsObjEncCtxHandle obj_ctx_handle = nvds_obj_enc_create_context(); if (!obj_ctx_handle) { g_print ("Unable to create context\n"); return -1; } NVGSTDS_ELEM_ADD_PROBE (pipeline->common_elements.primary_bbox_buffer_probe_id, pipeline->common_elements.primary_gie_bin.bin, "src", gie_img_prob_new, GST_PAD_PROBE_TYPE_BUFFER, obj_ctx_handle); Other code works very well but when it refer to ‘ctx’, it cause segmentation fault.

Thanks for your review I just use ds-exalple to save cropped image.

Running image save in deepstream5 app issue

Fiona.Chen October 9, 2020, 10:48am 3

The codes you post seem OK. But in Running image save in deepstream5 app issue - #7 by 1017oscar codes, there are two different probe functions with the same element’s same pad, have you fixed the error?

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