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V4L2 display overlay.

Senthilnathan Maadasamy
Prodigy 160 points

Hi,

       I want to do PIP using V4L2 display by doing the following:

       One video is being played on the bottom display layer (/dev/video1) and another video which is cropped is being played on the top layer (/dev/video2).

       Wherever the top display layer is cropped out, I expect to see the corresponding video portion from the bottom layer.  But it is displaying black on the cropped out portions and the bottom video portion is not seen.  I am using ezsdk 5.05.01.04 and I follow these instructions for doing the cropping: http://processors.wiki.ti.com/index.php/DM816X_AM389X_VPSS_Video_Driver_User_Guide_PSP_04.00.01.14#Cropping

        How can I fix this issue?

Thanks,

Senthil 

  • 0
    TI__Guru**** 170625 points

    Hi Senthil,

    I can provide you the below pointers which discuss PIP (picture in picture), hope these will help:

    http://processors.wiki.ti.com/index.php/3dfxuserguide

    http://processors.wiki.ti.com/index.php/TI81XX_PSP_VPSS_Video_Driver_User_Guide#Display_Position_of_Graphics

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/149164.aspx?pi239031349=1

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/t/180086.aspx

    http://e2e.ti.com/support/embedded/linux/f/354/t/105015.aspx

    http://e2e.ti.com/support/dsp/davinci_digital_media_processors/f/717/p/206642/739091.aspx

    Regards,
    Pavel