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osd display problem

fei li1
Intellectual 360 points

Hello!

Platform DM8168 dvrrdk3.0, osd display questions are as follows:

1.Run MCFW program, option 1 (VENC VCAP + + VDEC + VDIS), we can see Ti logo, date and time osd display（4x4CH）; But I switch display layout  2 x2CH, or 1x1CH, there would be no ti logo, date,and time  osd display? How to display ?

2.Run run_gui script, we can see video with Qt gui, why didn't we see ti logo , time and date osd display here? How can let it display from the osd buffer data?

  • 0
    TI__Guru 59700 points

    fei li1 said:
    1.Run MCFW program, option 1 (VENC VCAP + + VDEC + VDIS), we can see Ti logo, date and time osd display（4x4CH）; But I switch display layout  2 x2CH, or 1x1CH, there would be no ti logo, date,and time  osd display? How to display ?

    OSD is applied only on the encoded stream and not on preview channel.So you will see OSD only on playback channels. When you switch layout by default it will display channels starting from channel 0. To see OSD switch to channel 16 (Display Settings -> Switch Channel option)

     

     

     

    fei li1 said:
    2.Run run_gui script, we can see video with Qt gui, why didn't we see ti logo , time and date osd display here? How can let it display from the osd buffer data?

    QT GUI uses FBDEV and not SWOSD. SWOSD is not enabled in the UDDVR application.

     

     

     

     

     

     

     

  • 0 in reply to Badri Narayanan
    Intellectual 360 points

    Thank you !

    I am going to osd display Chinese font, I have modified the demo_osd. C files, run MCFW program, option 1(VCAP+VENC+ VDEC + VDIS),It can be seen osd dispaly Chinese on the video . But run run_gui script  can not  see osd display Chinese, if SWOSD is not enabled in the UDDVR application, In order to meet the scene display and save the video files have  Chinese osd logo, in QT GUI application, what should I do?