Missing line in cJSON

[Luiz.Picolo]

I'm converting an image to base 64 and every time I try to print in json, the json line simply disappears.

Convert image code

Code: [Select all] [Expand/Collapse]

1. camera_fb_t *pic = NULL;
2.   pic = esp_camera_fb_get();
3.  
4.   size_t output_length; // note *NOT* a pointer
5.   unsigned char *encoded= base64_encode((const unsigned char *)pic->buf, pic->len, &output_length);
6.  
7.   esp_camera_fb_return(pic);

GeSHi © Codebox Plus Extension

Json code

Code: [Select all] [Expand/Collapse]

1.   cJSON *root = NULL;
2.   cJSON *size = create_point(800,600);
3.  
4.     root = cJSON_CreateObject();
5.     cJSON_AddStringToObject(root, "img", (const char*)encoded);
6.     cJSON_AddItemToObject(root, "size", size);
7.     cJSON_AddStringToObject(root, "storeId", "upload_validation_store");
8.     cJSON_AddStringToObject(root, "clientId", "upload_validation_client");
9.     cJSON_AddStringToObject(root, "deviceId", "1234");
10.     cJSON_AddNumberToObject(root, "timestamp", 123456);
11.  
12.     if (print_preallocated(root) != 0) {
13.     cJSON_Delete(root);
14.     exit(EXIT_FAILURE);
15.     }
16.     cJSON_Delete(root);

GeSHi © Codebox Plus Extension

The result:
{
"size": [800, 600],
"storeId": "upload_validation_store",
"clientId": "upload_validation_client",
"deviceId": "1234",
"timestamp": 123456
}

The img line simply disappears

[WiFive]

Is encoded null terminated and do you have enough free memory for it and does cjson support giant strings?

[Luiz.Picolo]

I ended up updating the first post because of some changes in the programming, now I need to see how to put an unsigned char* in json

[Luiz.Picolo]

I discovered that there is no limitation on cjson, and I have enough memory, but I could not figure out if encoded null terminated or not.
How can I do this?