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Problem about dm8168 link application

Xavier
Genius 3180 points

Hi all

I have some questions about dm8168 dvrrdk link application

1. can scale link do up load scale and crop the out side image?

In my application, i want to up scale 1024x768(center 512x384) image x2, and crop 1024x786 to display,

i know display link can zoom and set zoom center position dynamically, however osd also scaled and run out display area ,

so i want to know if i scale link can do this, as there is no interface to set zoom center position dynamically or how to do this?

2.Can menu drawn by graph link can be encoded together with video frame?

I see the graph link which can draw osd also, so i want to use it to draw menu but when encode video frame will the osd is overlay the frame?

How can i do this ?

best regards

xavier

  • 0
    TI__Mastermind 18320 points

    I noticed that this query has not received any replies yet.  I am moving this thread over to the device forum in hopes that it will get an answer there.

  • 0 in reply to David Friedland
    TI__Guru 59700 points

    Xavier15128 said:

    1. can scale link do up load scale and crop the out side image?

    In my application, i want to up scale 1024x768(center 512x384) image x2, and crop 1024x786 to display,

    i know display link can zoom and set zoom center position dynamically, however osd also scaled and run out display area ,

    so i want to know if i scale link can do this, as there is no interface to set zoom center position dynamically or how to do this?

    Scaler link can crop the input image and then scale if the previouslink to scaler sets the startX,startY parameters in rtChannelInfo correctly. Cropping of scaler output image is not supported but you can set startX,startY in your case and SwMs will crop the image.

    2.Can menu drawn by graph link can be encoded together with video frame?

    This is possible if you use the display writeback driver.This feature is supported in DVR RDK 4.0.