i.MX ProcessorsのトピックRe: IPU overlay for iMX6Q

IPU overlay for iMX6Q

Tarek — Tue, 06 Nov 2012 17:24:10 GMT

Hi,

I've enabled the IPU overlay for mxc_ipudev_test by modifying the ipudev_config_file.

The test fails with the following messages printed:

How do I setup the IPU overlay correctly?

root@imx6qsabrelite:~# ./mxc_ipudev_test -C ipudev_config_file wall-1024x768-565.rgb

Get config from config file ipudev_config_file:

priority = 0

task_id = 0

timeout = 1000

fcount = 50

loop_cnt = 1

in_width = 320

in_height = 240

in_fmt = I420

in_posx = 0

in_posy = 0

in_crop_w = 0

in_crop_h = 0

deinterlace_en = 0

motion_sel = 0

overlay_en = 1

ov_width = 320

ov_height = 240

ov_fmt = I420

ov_posx = 0

ov_posy = 0

ov_crop_w = 32

ov_crop_h = 240

alpha_mode = 1

alpha_value = 0

colorkey_en = 0

colorkey_value = 0x555555

out_width = 1024

out_height = 768

out_fmt = UYVY

out_rot = 0

out_posx = 0

out_posy = 0

out_crop_w = 0

out_crop_h = 0

out_to_fb = 1

out_filename = ipu0-1st-ovfb

found fb dev /dev/fb1

====== ipu task ======

input:

foramt: 0x30323449

width: 320

height: 240

crop.w = 320

crop.h = 240

crop.pos.x = 0

crop.pos.y = 0

output:

foramt: 0x59565955

width: 1024

height: 768

roate: 0

crop.w = 1024

crop.h = 768

crop.pos.x = 0

crop.pos.y = 0

overlay:

foramt: 0x30323449

width: 320

height: 240

crop.w = 32

crop.h = 240

crop.pos.x = 0

crop.pos.y = 0

combine with local alpha

ipu task check fail 10

Thanks,

Tarek

Re: IPU overlay for iMX6Q

wayne1z — Tue, 13 Nov 2012 07:50:07 GMT

For the overlay(combination) processing, the overlay resolution should be the same as the output resolution.

You can run autorun-ipu.sh and get lots of examples, including the overlay test.

Re: IPU overlay for iMX6Q

Tarek — Tue, 13 Nov 2012 08:25:51 GMT

In my application I need to display video from 4, 8 or 16 different cameras at the same time. The screen will be divided into 4, 8 or 16 squares each will play different video. Selecting the camera and the screen configuration will change according to user requests on the fly using the GUI.

I was planing to use the output buffer from the IPU to display the video while overlay buffer for the GUI.

Now whatever video resolution this shouldn't affect the GUI. The GUI should always be full screen.

How do I achieve this configuration if I need to change the overlay resolution every time I change the video?

Thanks

Re: IPU overlay for iMX6Q

karina_valencia — Tue, 26 Mar 2013 14:49:03 GMT

Re: IPU overlay for iMX6Q

EthanCheng Mar 25, 2013 7:09 PM (in response to imxcommunityscout)

Please refer to the comment of the below link

https://community.freescale.com/message/306130#306130

About mxc_ipudev_test for overlay when overlay_en=1

"Just to let you know this example doesn't work for i.MX6 when running video!

To be fair it only works if you have a static image written to /dev/fb0.

Once you start using gstreamer to play video and use /dev/fb1 for the overlay it all goes horribly wrong."