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numVipInst & numSubChains

Ariel T.
Intellectual 825 points

Hi,

Mcfw examples In RDK2.8 always have this code:

capturePrm.numVipInst               = 2*numSubChains; /* Need to change based on actual HD video decoder */

What does numSubChains mean? Why numVipInst should be 2 times of numSubChains?

  • 0
    TI__Guru 59700 points

    numSubChains refers to the number of DEI instances . numVipInst is numSubChains * 2 for the 16 channel progrssive DVR usecase as each DEI channel is fed 8 channels.

    and there are 4 vipinstances corresponding to 4 TVP 5158 (each TVP 5158 captures 4 channels). I dont think you need to use this formula if you are creating your own usecase. You can explicitlyset number of vipInstances