Constant bitrate when using ROI (Nvv4l2h265enc)

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

Hi,

We are trying to use the ROI feature with constant bitrate, but we have seen issues when controlling the bitrate along with qt_delta.

Our main goal is to have low bitrate with a ROI that provides good image quality. Requirements are:

  • Set qt_delta to have a ROI with better image quality than the whole image.
  • Have bitrate control (constant bitrate is one option, variable bitrate with max bitrate limitation is another option)
  • Question: is it possible to set the H.265 encoder to use constant bitrate and/or to set a bitrate max. on this scenario?

We have been using the 01_video_encode as a reference code for testing.

Regards.

3

Hi RidgeRun team,
Please try external rate control and see if it meets your request:
Cbr ratecontrol and QP ranges - #8 by DaneLLL

For further issue, please share a test of running 01 sample. We will set up developer kit and check. Please note further debugging will be on AGX Orin developer kit with Jetpack 6.

5

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