jpeg encoder prints nvbuf_utils: dmabuf_fd -1 mapped entry NOT found when using buffer input


I’m using the jpeg-encoder based upon the sample 05_jpeg_encoder found in the tegra_multimedia_api 28.2.1
When the encoder uses a buffer as input the following the following line is printed:
nvbuf_utils: dmabuf_fd -1 mapped entry NOT found

This message seems to be printed within the library provided by Nvidia. A search on this message in the sources provided in the tegra_multimedia_api does not give any hits.

The issue can be reproduced by running the 05_jpeg_encoder with the option –encode-buffer


  • Why is this message reported?
  • How can i prevent this message from being printed?

Thank you in advance

Hi Masie,
It should be harmless print. Have you seen any issue in running jpeg encoding?

Hi masie,
The print is harmless. For avoiding confusion, we will check to remove the print in jpeg encoding.

Hi DaneLLL,

Thanks for the reply. I haven’t seen any issues running the jpeg encoding.
Good to hear the print is harmless however i do prefer to have it removed. Running the jpeg encoding from multiple sources generates quite a lot of these messages.

Please let me know if/when i can test