Unacceptable performance degradation between gst v1.10.0 and v1.14.4

[denis-shienkov]

I have an embedded device, based on "apalis-imx6".

Previously, I had an yocto Linux BSP image based on a "pyro" layer with the GStreamer v1.10.0.

using following pipeline to see the web-camera stream:

gst-launch-1.0 v4l2src ! image/jpeg,width=1920,height=1080,framerate=30/1 ! imxvpudec ! imxipuvideosink sync=false

I had the CPU load ~8 %

But, right now, after updating to the yocto layer "thud", with the GStreamer v1.14.4

I had the CPU load ~45%

A degradation is about 5-6 times... that is not acceptable.

root@apalis-imx6:~# gst-inspect-1.0 imxvpudec Factory Details: Rank primary + 1 (257) Long-name Freescale VPU video decoder Klass Codec/Decoder/Video Description hardware-accelerated video decoding using the Freescale VPU engine Author Carlos Rafael Giani dv@pseudoterminal.org

Plugin Details: Name imxvpu Description video en- and decoder elements using the Freescale i.MX VPU Filename /usr/lib/gstreamer-1.0/libgstimxvpu.so Version 0.13.0 License LGPL Source module gstreamer-imx Binary package Unknown package release Origin URL Unknown package origin

root@apalis-imx6:~# gst-inspect-1.0 v4l2src Factory Details: Rank primary (256) Long-name Video (video4linux2) Source Klass Source/Video Description Reads frames from a Video4Linux2 device Author Edgard Lima edgard.lima@gmail.com, Stefan Kost ensonic@users.sf.net

Plugin Details: Name video4linux2 Description elements for Video 4 Linux Filename /usr/lib/gstreamer-1.0/libgstvideo4linux2.so Version 1.14.4 License LGPL Source module gst-plugins-good Source release date 2018-10-02 Binary package GStreamer Good Plug-ins source release Origin URL Unknown package origin

root@apalis-imx6:~# gst-inspect-1.0 --version gst-inspect-1.0 version 1.14.4 GStreamer 1.14.4

[philn]

Probable duplicate of #228 ?

[angolini]

Could you, please, test it again using the latest release and update the status of this issue @denis-shienkov or @philn ?