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Masking edges of picture on DM365?

John Anderson
Genius 5240 points

I got my DM365 streaming H.264 and playing on Videolan Client.  [:Y]  But those pesky lines of vertical blanking info are showing in the video.  Is there an easy way to mask those areas?  It's just the top edge of my picture.

  • 0
    TI__Mastermind 41665 points

    John Anderson said:
    I got my DM365 streaming H.264 and playing on Videolan Client.  Yes 

    That sounds great, are you streaming 720p?

    John Anderson said:
    But those pesky lines of vertical blanking info are showing in the video.  Is there an easy way to mask those areas?  It's just the top edge of my picture.

    I assume this is happening in the capture end of the system, in which case you may be able to modify the capture driver a bit to shift the captured image down a few lines so you capture beyond the blanking data (I believe you could do this by increasing the value in the SLV register of the VPFE). You could also just write in a known data value to the beginning of your frame to cover up the VBI 'noise' so it would appear as just black (or the color of your choice).

  • 0 in reply to Bernie Thompson TI
    Genius 5240 points

    Bernie Thompson said:
    That sounds great, are you streaming 720p?

    Just standard definition.  That fits our product needs.

    Bernie Thompson said:
    I assume this is happening in the capture end of the system, in which case you may be able to modify the capture driver a bit to shift the captured image down a few lines so you capture beyond the blanking data (I believe you could do this by increasing the value in the SLV register of the VPFE). You could also just write in a known data value to the beginning of your frame to cover up the VBI 'noise' so it would appear as just black (or the color of your choice).

    Writing some black in the capture buffer before sending to the encoder.... facepalm how obvious.  Thanks for that suggestion!!!