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TI's sw osd

Sanjay Tandel
Prodigy 100 points

Hi All,

I am using sw osd lib. in our project (we use dm368). I am taking reference from TI's ipnc ref. design for my sw osd application.

Can anybody suggest  how to use SWOSD_winDrawHandle() API.?

in Document it is mentioned that Arg2 – mainWinAddr- Input – Main window Address.

I have captured YUV420 semiplanar data from V4L2 device and kept in a buffer(address pBuffer).So in this case can i give address of this YUV buffer(pBuffer) as Arg2 of SWOSD_winDrawHandle() api.?

Regards,

Sanjay

  • 0
    TI__Expert 8920 points

    Hi Snajay,

    The SWOSD_winDrawHandle is declared as shown below:

    int SWOSD_winDrawHandle(SWOSD_Hndl *Hndl, short* mainWinAddrY, short* mainWinAddrUV);

    The first arguemnt is SWOSD handle.

    Second argument is the adress of Y plane.

    And third argument is the address of UV plane.

    regards,

    Anand

  • 0 in reply to Anand Kulkarni71405
    Prodigy 100 points

    Hi Anand,

    Thanks for the reply.

    prototype of SWOSD_winDrawHandle() function in alg_ti_swosd.h is as below.

    int SWOSD_winDrawHandle(SWOSD_Hndl *Hndl, short* mainWinAddr);

    Here there is no arg. like short* mainWinAddrUV.

    Did you use sw osd lib.? Can you share code segment from your aplication?

    regards

    Sanjay

  • 0 in reply to Sanjay Tandel
    Prodigy 100 points

    Below are parameters list, when I try to overlay 160x64 logo onto 1280X720 YUV420psemi  window using SW OSD lib.

    mainWinPrm format 1
    mainWinPrm width 1280
    mainWinPrm height 720
    mainWinPrm lineOffset 0
    bmpWinPrm enable 1
    bmpWinPrm format 1
    bmpWinPrm startX 0
    bmpWinPrm startY 0
    bmpWinPrm width 160
    bmpWinPrm height 64
    bmpWinPrm lineOffset 160
    bmpWinPrm transperencyVal 0
    bmpWinPrm transperencyRange 72
    bmpWinPrm transperencyEnable 0
    bmpWinPrm resizeEnable 0
    bmpWinPrm userTransparancy 0
    bmpWinPrm bmpWinAddr 0x40021000
    bmpWinPrm bmpWinAddrUV 0x40228000
    activate  0x1
    numBmpWin  0x1c

    Could anyone please verify above parameters?

    regards

    Sanjay

  • 0 in reply to Anand Kulkarni71405
    Prodigy 10 points

    how to understand transperencyVal  transperencyRange