H.264 hardware decoding increases CPU usage and memory usage continuously on i.MX8M-mini

Hata-kun — Wed, 18 Nov 2020 12:15:28 GMT

I'm decoding H.264 file with GStreamer vpudec plug-in, but CPU and memory usage are increased continuously.

Result of top command is as follows.

Memory CPU Elapsed usage usage time ----------------------------------------------------------------------------------- 18344 root 20 0 212284 12432 6692 S 13.9 0.6 0:00.14 gst-launch-1.0 18344 root 20 0 212284 14808 6692 S 21.6 0.7 0:00.36 gst-launch-1.0 18344 root 20 0 212284 17184 6692 S 22.8 0.9 0:00.59 gst-launch-1.0 18344 root 20 0 212284 19560 6692 S 22.5 1.0 0:00.82 gst-launch-1.0 18344 root 20 0 212284 21672 6692 S 23.5 1.1 0:01.06 gst-launch-1.0 18344 root 20 0 212284 24048 6692 S 24.5 1.2 0:01.31 gst-launch-1.0 18344 root 20 0 212284 26160 6692 S 25.7 1.3 0:01.57 gst-launch-1.0 18344 root 20 0 212284 28272 6692 S 26.5 1.4 0:01.84 gst-launch-1.0 ... ... 18344 root 20 0 277820 137888 6692 S 65.3 6.9 0:44.82 gst-launch-1.0 18344 root 20 0 277820 138944 6692 S 63.7 6.9 0:45.47 gst-launch-1.0 18344 root 20 0 277820 140000 6692 S 62.7 7.0 0:46.11 gst-launch-1.0

As I suspect it depends on a video file, could some NXP engineer help me ?

The video file is too big to offer in this community because of the file size limit.

Re: H.264 hardware decoding increases CPU usage and memory usage continuously on i.MX8M-mini

Hata-kun — Mon, 23 Nov 2020 13:10:06 GMT

The tested command is

'gst-launch-1.0 filesrc location=./h264.ts ! tsdemux ! vpudec ! fakesink'.

Also, some contents cause CPU load and allocated memory increasing, and other contents don't cause them.

Please prepare upload site that I can offer my contents, 2 files are 53MB and 81MB.

i.MX ProcessorsのトピックRe: H.264 hardware decoding increases CPU usage and memory usage continuously on i.MX8M-mini

H.264 hardware decoding increases CPU usage and memory usage continuously on i.MX8M-mini

Re: H.264 hardware decoding increases CPU usage and memory usage continuously on i.MX8M-mini