Frame buffer in DM8168

Hello,

I will check it. Could you share the image I to setup the same use case?

Best Regards,

Margarita

Hi,

You mean which image I have dumped, that you want to check it?

I have attached the raw image which I dumped into my LCD. I am using Formike LCD with the resolution of 800x480.

Please follow the procedure as I mentioned in the previous post and dump this image into the LCD

/cfs-file/__key/communityserver-discussions-components-files/791/0815.800_5F00_480_5F00_image.zip

Thanks in advance.

Regards,

Salih

Hello,

Could you try :

cp My_image.raw /dev/fb0
cat /dev/fb0

Let me know.
Best Regards,
Margarita

Hi Margarita,

Thanks for your inputs.
If I execute the above commands as like u mentioned, I can able to see the image in the FG of my display.
Why its behaving like this?. Normally its supposed to visible in FG instead of BG.
Whether it is the issue or the driver itself designed like this.?. If it is the issue, could you please help me to solve this?

And one more information, if I run the matrix-GUI in the LCD, it is appearing in the FG.

Thanks in advance.

Regards,
Salih

Hello,

I would recommend you to post in the linux forum in this case :
http://e2e.ti.com/support/embedded/linux/

Best Regards,
Margarita

Hi Margarita,

Thanks for your inputs. But, here if I load the below modules in my target, I can able to see my image in the FG of my Display:

insmod pvrsrvkm.ko
insmod bufferclass_ti.ko
insmod omaplfb.ko

Why the above modules are loading from init scripts in the target while booting the system.

Please clarify these queries. I want to run the video in my LCD using G-streamer

Thanks in advance.

Regards,
Salih

Hello,

Muhammad Salih said:

insmod pvrsrvkm.ko
insmod bufferclass_ti.ko
insmod omaplfb.ko

Graphics related. Refer to Graphics SDK for more information.

You could try:

gst-launch --verbose filesrc location=/usr/share/ti/data/videos/dm816x_1080p_demo.264 ! 'video/x-h264' ! h264parse access-unit=true ! omx_h264dec ! omx_scaler! omx_ctrl display-mode=OMX_DC_MODE_480P_60 display-device=LCD ! gstperf !   'video/x-raw-yuv,width=(int)800,height=(int)480'   ! omx_videosink sync=false display-device=LCD

or

gst-launch --verbose filesrc location=/usr/share/ti/data/videos/dm816x_1080p_demo.264 ! 'video/x-h264' ! h264parse access-unit=true ! omx_h264dec ! omx_scaler!  gstperf !   'video/x-raw-yuv,width=(int)800,height=(int)480'   ! v4l2sink device="/dev/videoXX" show-preroll-frame=false sync=false min-queued-bufs=2 userpointer=false

Best Regards,

Margarita

Hi,

Thanks for your inputs. I have executed the second command in my target. But I can't able see any video in the LCD:

gst-launch --verbose filesrc location=/usr/share/ti/data/videos/dm816x_1080p_demo.264 ! 'video/x-h264' ! h264parse access-unit=true ! omx_h264dec ! omx_scaler!  gstperf !   'video/x-raw-yuv,width=(int)800,height=(int)480'   ! v4l2sink device="/dev/video1" show-preroll-frame=false sync=false min-queued-bufs=2 userpointer=false

Should I miss anything to run the video in the LCD. I have executed the below commands:

echo 0 > /sys/devices/platform/vpss/graphics0/enabled
echo 1:dvo2 > /sys/devices/platform/vpss/graphics0/nodes
echo 0 > /sys/devices/platform/vpss/display1/enabled
echo 800x480@60 > /sys/devices/platform/vpss/display1/mode
echo 1 > /sys/devices/platform/vpss/display1/enabled
echo 1 > /sys/devices/platform/vpss/graphics0/enabled

Below are the modules loaded in the target:

root@dm816x-evm:~# lsmod
Module                  Size  Used by
omaplfb                10766  0
bufferclass_ti          4950  0
pvrsrvkm              155490  2 omaplfb,bufferclass_ti
ti81xxhdmi             17685  0
ti81xxvin              20388  0
tvp7002                 6405  0
ti81xxvo               21210  0
ti81xxfb               21979  1
vpss                   75009  5 omaplfb,ti81xxhdmi,ti81xxvin,ti81xxvo,ti81xxfb
syslink              1131915  0
ipv6                  209855  12
root@dm816x-evm:~#

I am attaching the log file of my target with this post.

/cfs-file/__key/communityserver-discussions-components-files/791/8662.log.txt

I want to know which is my display device (video1, video2, video3). And also any command have I execute to change the video device. If so, what are those commands.

Please don't regret my queries and give me the solution to solve this issue.

Do I have change the below device node in the command:

/sys/devices/platform/vpss/video0/nodes

Its showing as vcompmux:hdmi

I was facing this issue for very long time. Still its not yet solved. Struggling with this a lot.

Please help me out

Thanks in advance.

Regards,
Salih

Hi,

I have executed the below commands to run the video in the LCD. Its working with your TI demo video:

echo 0 > /sys/devices/platform/vpss/graphics0/enabled
echo 1:dvo2 > /sys/devices/platform/vpss/graphics0/nodes
echo 0 > /sys/devices/platform/vpss/display1/enabled
echo 800x480@60 > /sys/devices/platform/vpss/display1/mode
echo 1 > /sys/devices/platform/vpss/display1/enabled
echo 1 > /sys/devices/platform/vpss/graphics0/enabled
fbset -fb /dev/fb0 -xres 800 -yres 480 -vxres 800 -vyres 480 -t 33500 89 164 23 10 10 10 -depth 24
echo vcompmux:dvo2 > /sys/devices/platform/vpss/video0/nodes

And I have executed the below pipeline:

gst-launch --verbose filesrc location=/usr/share/ti/data/videos/dm816x_1080p_demo.264 ! 'video/x-h264' ! h264parse access-unit=true ! omx_h264dec ! omx_scaler!  gstperf !   'video/x-raw-yuv,width=(int)800,height=(int)480'   ! v4l2sink device="/dev/video1" show-preroll-frame=false sync=false min-queued-bufs=2 userpointer=false

Thank you very much for your support. I am very happy to say after a big struggling. But still,  I have some clarifications with some commands below:

gst-launch playbin2 uri=file:///home/root/tfr.mp4 -v

If I executed the above commands to run the video, the video is playing but the FPS is very less and playing in very low tempo.

What might be the reason for this?. And also I want to know what are video and audio codecs which your supporting in this processor and package.

And also please let me know pipelines which I can able make it work in the target.

Thanks in advance.

Regards,
Salih

Hi,

I am keep on waiting for your response to proceed further. Is there any updates regarding this?

Regards,
Salih

Hello,

Muhammad Salih said:

gst-launch playbin2 uri=file:///home/root/tfr.mp4 -v

If I executed the above commands to run the video, the video is playing but the FPS is very less and playing in very low tempo.

This is known issue we have fix about this.

You observe this because by default the omx_mdeiscaler element is linked in the pipeline.

 You could revert it and the omx_scaler to be used. Keep in mind that you could you the omx_scaler in case your video is progressive. If it is interlaced I would recommend you to use the omx_mdeiscaler. But in  this case you should apply the patch which is in the overlay package. If you have the overlay package (which is under NDA and can not be discussed in the public forum), please contact your local FAE or TI representative.

Best Regards,

Margarita