Low framerate streaming 4K for decode H264 on IMX8MP

[thepnimit]

Dear NXP,

In product details for IMX8MP is shown it can decode and encode H264 at 1080p60FPS

We would like to know if it would still work fine if we reduce the framerate to 10FPS or 5FPS and change the resolution to 2160p. Alternatively, is the hardware fixed at a resolution of 1080p only?

Best regards

Thepnimit

[Dhruvit]

Hello @thepnimit 

I hope you are doing well.

->The IMX8MP is not fixed at a resolution of 1080p only. It can decode and encode H.264 at resolutions up to 4096x2160.
->The performance will decrease as the resolution increases.

I hope this will help!

Thanks & Regards,

Dhruvit Vasavada

[thepnimit]

Dear Dhruvit,

Thank you for your reply.

I would like to know what the kernel version is in your reference, as it pertains to unlocking the resolution limit for the VPU H264 encoder.
In my kernel version 5.15.71, there appears to be a resolution limitation within the GStreamer software.

Furthermore, when it comes to the VPU decoder, I am encountering difficulties in decoding H264 image from my camera at a resolution of 3840x2160 into raw video format. The gstreamer program displays an error message stating "Internal data stream error."

Example my pipeline 

gst-launch-1.0 -e -v v4l2src device=/dev/video0 ! video/x-h264,width=3840,height=2160 ! queue ! vpudec ! appsink

Best regards

Thepnimit

[Dhruvit · Accepted solution]

Hello @thepnimit 

I hope you are doing well.

"What the kernel version is in your reference"
->It is supported till the latest BSP version 6.1.22
->Please refer to section 7 Multimedia from the below link for reference.
https://www.nxp.com/docs/en/user-guide/IMX_LINUX_USERS_GUIDE.pdf

For the error message "Internal data stream error"
->Please refer to the below link for reference.
https://community.nxp.com/t5/i-MX-Graphics/gst-launch-1-0-returns-Internal-data-stream-error/td-p/15...

I hope this will help!

Thanks & Regards,

Dhruvit Vasavada