Problem in Video Capture for component input

Hello,

Subha Viswanathan said:

I tried to run capture_encode_a8host_debug.xv5T for both composite and component but in vain.

You should use a component input.

What is the software release that you are using here? What is the command which you are using to execute the capture_encode demo? Are you using EVM or custom board?

Please provide a debug log :

http://processors.wiki.ti.com/index.php/OMX_Viewing_Media_Controller_Traces

Subha Viswanathan said:

Hence, I had followed the steps provided in this link

http://processors.wiki.ti.com/index.php/TI81XX_PSP_VIDEO_CAPTURE_Driver_User_Guide for v4l2 capture.

and tried saLoopBack example

When you are using saLoopBack demo have you load the load-hd-v4l2-firmware.sh?

Best Regards,

Margarita

Thanks for your reply. Please find my inputs inline.

1. You should use a component input.

[Subha] Yes Iam using Component Input (J10,J9,J8)

2. What is the software release that you are using here? What is the command which you are using to execute the capture_encode demo? Are you using EVM or custom board?

[Subha] Iam using DM814x Evaluation Module Board. The software version  is EZSDK 5_05_02_00 for the DM814x.

These are the steps I followed before calling capture_encode

/etc/init.d/matrix-gui-e stop

/etc/init.d/pvr-init stop

insmod /lib/modules/2.6.37/kernel/drivers/media/video/tvp7002
.ko

insmod /lib/modules/2.6.37/kernel/drivers/media/video/ti81xx/
ti81xxvin.ko
tvp7002 3-005d: tvp7002 found @ 0x5d (OMAP I2C adapter)
omap_i2c omap_i2c.3: controller timed out
omap_i2c omap_i2c.3: controller timed out
omap_i2c omap_i2c.3: controller timed out
omap_i2c omap_i2c.3: controller timed out
omap_i2c omap_i2c.3: controller timed out
tvp7002 3-005d: TVP7002 read error -110
tvp7002: probe of 3-005d failed with error -110
ti81xxvin ti81xxvin: Error registering v4l2 subdevice

root@dm814x-evm:/lib/modules/2.6.37/kernel/drivers/media/video/ti81xx# lsmod
Module                  Size  Used by
ti81xxvin              20591  0
tvp7002                 6429  0
bufferclass_ti          4950  0
omaplfb                10794  0
pvrsrvkm              155618  2 bufferclass_ti,omaplfb
tlc59108                1545  0
ti81xxhdmi             17685  0
ti81xxfb               21979  2
vpss                   74936  4 ti81xxvin,omaplfb,ti81xxhdmi,ti81xxfb
syslink              1133911  0
ipv6                  214095  14

3. When you are using saLoopBack demo have you load the load-hd-v4l2-firmware.sh?

[Subha] I tried running  ./load-hd-v4l2-firmware.sh start.

It hangs and I have to reset the board. Please find the attached video_capture.txt.. The  Bootup logs  does not Load "load-hd-v4l2-firmware.sh" but runs "load-hd-firmware.sh"

4.Please provide a debug log :

http://processors.wiki.ti.com/index.php/OMX_Viewing_Media_Controller_Traces

[Subha] I  will send you in the next reply.

Hello,

Steps to run capture encode  demo:

root@dm814x-evm:~# /etc/init.d/matrix-gui-e stop
Stopping Matrix GUI application.
root@dm814x-evm:~# /etc/init.d/pvr-init stop
Stopping PVR
root@dm814x-evm:~# cd /usr/share/ti/ti-omx/
root@dm814x-evm:/usr/share/ti/ti-omx# ./capture_encode_a8host_debug.xv5T < ... >

Steps to run saLoopBack demo:

root@dm814x-evm:~# /etc/init.d/matrix-gui-e stop
Stopping Matrix GUI application.
root@dm814x-evm:~# /etc/init.d/pvr-init stop
Stopping PVR

root@dm814x-evm:cd /usr/share/ti/ti-media-controller-utils/
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# ./load-hd-firmware.sh stop

root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# ./load-hd-v4l2-firmware.sh start

./saLoopback

Best Regards,

Margarita

I tried your steps for saLoopBack

The following is the error in saLoopback

root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# find / -iname saLoopBac
k
/usr/bin/saLoopBack
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# cd /usr/bin
root@dm814x-evm:/usr/bin# ./saLoopBack
Driver Name: ti81xxvin
Driver bus info: TI81xx Platform
Driver is capable of doing capture
sh: can't create /sys/devices/platform/vpss/display0/enabled: nonexistent directory
saLoopBack:
 Mode set is 0
Setting DV Preset failed

Note, as you had mentioned stopping the load_hd_firmware.sh and starting load-hd-v4l2-firmware.sh was successful

I am trying to capture the Video from "Settopbox component out" out into the component input of the EVM Board. saLoopBack does not talk about which output connection (composite??) I need to connect to check in the TV.

Hello,

V4L2 nodes are:

• V4L2 display nodes are /dev/video1, /dev/video2, /dev/video3
• V4L2 capture nodes are /dev/video0, /dev/video4, /dev/video5 and /dev/video6.

/dev/video1  -- => video0 -- => vcompmux  -- => hdmi_venc(display0)-> on_Chip_Hdmi output

/dev/video2  -- => video1 -- => hdcompmux -- => dvo2_venc(display1)-> LCD Pannel or external dispaly device

/dev/video3  -- => video2 -- =>   sdmux   -- => sd_venc(display2)-> SVIDEO output

In saLoopBackc you have:

/* device node to be used for capture */
#define CAPTURE_DEVICE        "/dev/video0"
#define CAPTURE_NAME        "Capture"
/* device node to be used for display */
#define DISPLAY_DEVICE        "/dev/video1"
#define DISPLAY_NAME        "Display"

Best Regards,

Margarita

hi Margarita,

i follow the steps and i can't make saLoopBack work. The error is something like:error in setting up buffers .can you help me?

Best Regards!

wang

Hello,

Could you provide me the steps that you are executing before to run the saLoopBack demo?

Could you provide information about resolution, how the video source is connected to the EVM etc.

Could you post me the error which you are seeing in the console when you are executing the saLoopBack demo?

Best Regards,

Margarita

Hello,

I'm so sorry that i cannot show my steps in detail,here is the printed message:

Driver bus info: TI81xx Platform
Driver is capable of doing capture
saLoopBack:
Mode set is 1080P60
I2C No Ack

Driver Name:
Driver bus info: 锟?
@@`
=============================================================
Capture Format:
=============================================================
fmt.type = 1
fmt.width = 1920
fmt.height = 1080
fmt.pixelformat = 1448695129
fmt.bytesperline = 3840
fmt.sizeimage = 4147200
=============================================================
=============================================================
Display Format:
=============================================================
fmt.type = 2
fmt.width = 1920
fmt.height = 1080
fmt.pixelformat = 1448695129
fmt.bytesperline = 3840
fmt.sizeimage = 4147200
=============================================================
VPSS_GRPX : (0)- region(1920x1080) out of frame(800x480).
Error writing variable information.
: Invalid argument
Error in setting up of Buffers

i wanna know the correct configuration of running the video examples. i cannot find the diretion in the video and Vpss capture driver guides,what shall i do?

Thanks  

Hello,

It seems like display is set for 800X480 resolution(probably you tried to run it on LCD).

You could try :

1. In case you want to run it on LCD, change the resolution 1080P60 mode.

2. In case you want to run it on HDMI, you should :

root@dm814x-evm:~# cd /usr/share/ti/ti-media-controller-utils/
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# ./change_display.sh hdmi
==== Changing default display to HDMI ====
==== Please reboot your board NOW! ====
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# reboot

root@dm814x-evm:~# /etc/init.d/matrix-gui-e stop
Stopping Matrix GUI application.
root@dm814x-evm:~# /etc/init.d/pvr-init stop
Stopping PVR
root@dm814x-evm:~# cd /usr/share/ti/ti-media-controller-utils/
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# ./load-hd-firmware.sh stop
root@dm814x-evm:/usr/share/ti/ti-media-controller-utils# ./load-hd-v4l2-firmware.sh start
root@dm814x-evm:cd

root@dm814x-evm:./saLoopBack

Let me know if you need further details.

Best Regards,

Margarita

Hello,

Thanks for your reply! i will test it later.

By the way,could you give me some suggestions of learning the ioctl() function?

Best Regards.

Wang

Hello,

user4183457 said:

Thanks for your reply! i will test it later.

Let me know the results.

user4183457 said:

By the way,could you give me some suggestions of learning the ioctl() function?

Probably any book for Video For Linux Two will help you.

I am not sure what you mean by learning this function.

Best Regards,

Margarita

Hello,

i do follow the steps you offered yesterday,and i met the same error.Does that mean i need a video source which provide 800*480 resolution? Or i may modify the display part in the saLoopBack.c?

Waiting!

Thanks

Wang

Hi Wang,

Are you setting up the input buffer/frame buffer enough for 1080p frame? This has to be setup while inserting fbdev driver to the Kernel..

Please make sure that the frame buffer size is enough for the display resolution. Otherwise it will give this error.

Rgds,

Brijesh

Hi Brijesh,

Do you mean the index :insmod ti81xxfb.ko vram=0:40M,1:1M,2:1M 》? if not ,how can I set up the buffer size?

Thanks a lot!

Wang

Yes,

Please see you have reserved 1MB for both the graphics 1 and 2, so if you are using grpx1 or 2 instance (fb1 or fb2), the memory will be insufficient for 1080p resolution. For Graphics0, fb0, memory is sufficient.

Please check in the application which fb node, graphics layer, that you are using.

Rgds,

Brijesh