Information about parameters of L4T Jetpack 4.5.1 Xavier AGX Video Encoding Motion Data

Robotics & Edge Computing Jetson Systems Jetson AGX Xavier
1

Hello,
I’ve been looking at multimedia video_encoding_01 code on Jetson Xavier AGX jetpack 4.5.1.

  1. I would like to learn more about using video_encoding sample to get Motion Vector.
    Could you please help me get a guilde or reference for the parameters I may need to change?
    For example V4L2_CID_MPEG_VIDEO_B_FRAMES, V4L2_CID_MPEG_VIDEO_GOP_SIZE, V4L2_CID_MPEG_VIDEO_H264_NUM_REF_FRAMES.
    I don’t see a guide that talks about these parameters for jetpack 4.5.1.
  2. I would like to have more information about the retrieved motion data.
    What are the motion data parameters, such as search area size etc? Can they be controlled?
  3. Is there a way to shorten encoding time if I’m only interested in the motion data and don’t need the encoded data?
    Thank you!
6

Hi,
Please set the option --mvdump to 01 sample and check the console log.