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

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi,

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

Question:

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

Thank you in advance

2

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

3

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

4

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