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How to create VNF link

Hi all,

My camera run ipnc3.5.

Now I can only fiter 1080P or 720P image respectively.   But I want to filter 1080P and 720P image at the same time. who can tell me how to create VNF link?

thanks a lot

  • VNF doesn't support multi-streams.

    It's recommended to use VNF to filter you main stream, and then get other streams using the HDVPSS scalar, you have such example in "quad stream noise filer" use case.

  • BTW, you can also choose to use NSF which does support multi-streams.

  • hi zhuoran Dai,

    thanks a lot

    1、VNF can not support multi-streams. why? software framework or handware limitaiton?

    2、Can NSF work on lowpower mode?

    3、Can NSF filter 5M image?

    4、if NSF can not filter 5M image, can I use NSF and VNF together? NSF filter 2M image and VNF filter 5M image.

  • xin feng said:

    hi zhuoran Dai,

    thanks a lot

    1、Can NSF work on lowpower mode?

    No, NSF is on HDVPSS, you need to power on HDVPSS for using NSF.

    2、Can NSF filter 5M image?

    Not in RDK 3.5, but now it's possible with the latest patch, you can either wait for the next RDK release or contact TI FAE for getting that patch.

    3、if NSF can not filter 5M image, can I use NSF and VNF together? NSF filter 2M image and VNF filter 5M image.

    Yes it's possible.

  • hi Zhuoran Dai,

    1、VNF can not support multi-streams. why? software framework or handware limitaiton? If because of software framework,  do I modify the software easily?

    2、When does the next RDK release? Do you know?

    Thanks a lot.

  • 1. Well, the VNF software doesn't support multi-streams, and the reason we didn't implement that is because the hardware has been designed for 1080P30 performance only. Even we modify the software to allow multi-streams, it will be based on a time slice manner and the toal performance cannot exceed 1080P30 anyway. As you can see this doesn't really have interest unless you want to aplly it on two 720P streams. And, I don't think you can do this change on your side.

    2. Sorry I don't know the schedule now.

  • hi zhuoran Dai,

    thank you very much.

    Now I only try to make VNF nad NSF to work together. Let VNF filter 5M image and NSF filter 2M image.

    I can create link like this:

    ispLink     ispLink

        |                |

        |                |

    nsfLink      vnfLink

         |               |

                |

         mergeLink