How to implement color key with IMX7 sabre board?

[mariuszpiotrows]

How to implement color key with IMX7 sabre board?

Mentioned platform is lacking with IPU and graphic hardware acceleration (2D and 3D)

I was trying to do NXP test build in

example of PXP by running:

"root@imx7dsabresd:/unit_tests/Display# ./pxp_test.out -I "-h -v -l 10 -t 100"

---- Running < ./pxp_test.out > alloc_contig_range: [ac140, ac16b) PFNs busy
test ----

pxp_test.c:260 requested chan handle 0
pxp_test.c:360 opening this fb_dev - /dev/fb0
pxp_test.c:360 opening this fb_dev - /dev/fb1
pxp_test.c:360 opening this fb_dev - /dev/fb2
pxp_test.c:363 Unable to open /dev/fb2

----  Test < ./pxp_test.out > ended  ----"

it is failing and it is expecting "mxc_epdc_fb" if frame buffer id is different then I would failed,

Unfortunately I don't have EPDC interface connected,

I was able to modified /imx-test-5.9/test/pxp_lib_test/pxp_test.c file but it faild in two places:

ret = ioctl(fd_fb, FBIOPUT_VSCREENINFO, &var); // this could be omitted
retval = ioctl(fd_fb, MXCFB_SEND_UPDATE, &upd_data); // always failed

Any advice how to implement color keying with IMX7D sabre board ?

[mariuszpiotrows]

Hello,

Thank you for replay,

I am not using EPDC, is the PXP only working with EPDC

or is going to work with LCD?

I do care about color keying or other way to overlay graphics(GUI) on top of Video which come from gStreamer 

Is this possible with IMX7 when there is no IPU ?

If it is possible how to do it ?

Regards,

[Bio_TICFSL]

Hi Mariusz

You need to enable PXP driver for EPDC on i.MX 7Dual, is the only way. However due lack of IPU the color key is not going to work.

Regards