Regarding Image Overlay

shilpac · ‎05-19-2014

Hi,

Set up details

* Processor: IMX6Q

* Build: Yocto 1.4 (Branch: Dylan)

* Open source multimedia framework: GStreamer-0.10 for decode process.

The requirement is to add an image overlay to mp4 Video file. Using Gstreamer pipelines I could add an image overlay on a video and I observed the CPU usage shooting up to 120%. CPU utilization is verified using atop command. Without image overlay CPU utilization was 1%.

I would like to know can we accelerated the same using hardware and whether the same can be done using IPU ?

Thanks,

Shilpa

igorpadykov · ‎05-22-2014

Hi Shilpa,

suggest to use latest yocto dora

L3.10.17_1.0.0_IMX6QDLS_BUNDLE : Source Code Download Steps Documentation and Demo Images.

IPU overlay is descibed in below documents

IMX51_IPU_LIB_UG

i.MX51 IPU V3 Library User's Guide

yocto package imx-test-3.10.17-1.0.0_beta :

mxc_v4l2_test/mxc_v4l2_overlay.c

this test is described in sect.6.4.2 "Video4Linux API test"

and sect.6.4.3 "IPU Device Unit test"

i.MX_6_Linux_Reference_Manual.pdf included in doc package

Also please check sect.3.5 "Multiple video overlay"

i.MX_6_Series_Yocto_Project_Multimedia_User's_Guide.pdf

included in that package

L3.10.17_1.0.0_LINUX_DOCS

Linux 3.10.17 BSP & MM Bundle

Best regards

chip

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