can I encode 1920x1200@60Hz

Anjli,

Please see this post related to your question:

http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/716/p/126857/531171.aspx#531171

Regards,

Viet

Encoding of resolution upto 2048x2048 is supported.

So 1920x1200@60Hz can be easily achieved.

Regards,

Venu

Hello Anjli,

We are planning to use DM8148 in our new design, even we do have same question whether it support 1920x1200 upto 30 fps.

It is not clearly mention about this specific resolution support.

Is there any configuration bit to configure this resolution.

Thanks,

Sachin Nalbalwar

Sachin,

WUXGA 60fps is supported by DM8148. Currently the driver support for WUXGA is not available in HDVPSS capture and display driver. WUXGA support needs to be added manually to enable the same. 

Hi Ranjith,

 Thanks for the response.

Does this mean –

(i)                  We need to write enhancements to the HDVPSS driver to get this functionality OR

(ii)                We just need to integrate an already available elsewhere supplement code (to support 1920x1200) into the HDVPSS driver.

Thanks,

Sachin Nalbalwar

Sachin,

You'll have to add support for WUXGA in HDPVSS as well as in Linux. I don't think the source for WUXGA is available in public. 

Hi Sachin,

Which frame work you are using? Are you using Linux? There are sysfs entries to change the resoluition of the VENC. You could 1920x1200 format using this sysfs entries.

On the capture side, which decoder are you using? This is because TVP7002 driver does not support this resolution.

Regards,

Brijesh Jadav

Hi Brijesh,

Thanks for the response.

We are using ADV7441A device (from Analog device) to decode VGA as well as DVI-D video at input side.

Pl. let me know if this device supports 1920x1200 resolution.

Thanks again for the support.

Sachin Nalbalwar

Hi Sachin,

For unsupported external encoder/decoder, you will have to take care of configuring. I could help you from VPSS side,

In the display, you could set the display mode using sysfs entry and in the capture, capture works in detection mode, so there is no change required for the specific mode. you just have to configure your external decoder.

Rgds,

Brijesh

Hi Brijesh,

Thanks for support.

I am working with device manufacture to confirm 1920x1200 resolution support.

Thanks,

Sachin Nalbalwar

Hi, can you tell how to use ADV7441 device on dm8168？ Thankx for any reply.

Hello,

arvin arvin said:

Hi, can you tell how to use ADV7441 device on dm8168？ Thankx for any reply.

What is the software release that you are using here?

If you are using EZSDK you should add it like external decoder.

In this case you could follow this user guide:

http://processors.wiki.ti.com/index.php/DM81xx_AM38xx_Adding_External_Decoders_to_V4L2_Capture_Driver

Best Regards,

Margarita

hello, my sdk release is dvrrdk3.0,with this release,how can i develop it(add adv7441 device)?thankx.

Best Regards.

Hi I am not aware of the interface of ADV7441, but I assume it uses similar interface like TVP7002

I made a patch over DVRRDK4.0 to support TVP7002 capture on Netra EVM + IO Expansion board.

 https://e2e.ti.com/cfs-file.ashx/__key/communityserver-discussions-components-files/876/2388.7002demo.rar

Basically there are 2 parts you need to handle:

1. Configurationof  ADV7441. there should be a register vaule recommendation so simply write registers through config bus like I2C.

2.  Refer to the usecase file I attached it can give you an example how to configure the capture module.

BR,

Eason

Hi,Eason Wang.

Firstly,thanks for your reply!

I can not open  "7002demo.rar" as "You do not have permission to view this directory or page using the credentials that you supplied";

can you send it to my mail?(note: arvin_fresh@sina.cn)

 BR.

Arvin

2703.2388.7002demo.rar

thank you！