i.MX93 power consumption measurement

[ArtKl]

Hello,

Was reading AN13917 (i.MX 93 Power Consumption Measurement) section 5.10.3 Smart doorbell:

Does anyone know what was the compression rate of h264 during this test?

[ArtKl]

Thank you for your answer, but the question is still standing. We need to know what was the compression ratio during this test. Our goal is to understand what is the power consumption while using software encoder with different compression ratio.

I would like to involve my colleague @lli_brolis to continue this discussion.

[riteshmpatel]

Hi @ArtKl,

Below is the tested compression ratio:

Below is the test command:

RAW video:
gst-launch-1.0 -v v4l2src device=/dev/video0 ! "video/x-raw,width=640,height=480" ! queue ! filesink location=rawvideo

H264 video:
gst-launch-1.0 -v v4l2src device=/dev/video0 ! "video/x-raw,width=640,height=480"  ! x264enc tune=zerolatency bitrate=500 speed-preset=superfast ! filesink location=h264_video

Thanks & Regards,
Ritesh M Patel

[riteshmpatel]

Hi @ArtKl,

I hope you are doing well.
Please accept my apologies for the delay in response.

H.264 is a standard video encoding format. Usually only take the video stream resolution, bitrate, and fps as consideration.

Advanced Video Coding (AVC), also referred to as H.264 or MPEG-4 Part 10, is a video compression standard based on block-oriented, motion-compensated coding.

The 480p video stream was recorded by the camera with the below gstreamer command. The compression ratio is highly dependent on the video content you are recording with the camera.

Thanks & Regards,
Ritesh M Patel