Revision as of 12:11, 7 December 2023 by Registered User (Created page with "<noinclude>{{ApplicableFor |MPUs list=STM32MP25x |MPUs checklist=STM32MP13x, STM32MP15x, STM32MP25x }}</noinclude> {{#lsth:V4L2 video codec overview|Check interrupts activity...")
In order to verify that VDEC and/or VENC hardware accelerator is well involved when decoding and/or encoding, one can check the number of interrupts. One interrupt is raised at each frame decoding/encoding.
gst-play-1.0 v_vp8_640x480_30fps.webm cat /proc/interrupts | grep vdec 86: 300 0 GIC-0 149 Level 480d0000.vdec
300 interrupts for 10s of video at 30fps.
gst-launch-1.0 videotestsrc num-buffers=300 ! video/x-raw, width=640, height=480, framerate=30/1 ! encodebin profile="video/x-vp8" ! matroskamux ! filesink location=v_vp8_640x480_30fps.webm cat /proc/interrupts | grep venc 87: 300 0 GIC-0 199 Level 480e0000.venc
300 interrupts for 300 frames encoded.
