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Ivahd2ChMap

Steven Huang
Intellectual 455 points

Hi~ everyone!

Here we have 3 IVAHDs but  I found that there are only two IVAHDS used! 

If  I have 2 encoders and want to run one on a third IVAHD not just on the same IVAHD !

How should I set or do?? 

thanks a lots

  • 0
    TI__Mastermind 25055 points

    Hello,

    Can you please provide more details on what you want to do exactly?

    Regards,
    Marc

  • 0 in reply to MarcPyne
    Intellectual 455 points

    HI~
    Here is my question! In "utils_encdec.c" , there is a map for IVAHD !!  as below:


    static SystemVideo_Ivahd2ChMap_Tbl UtilsEncDec_IvaChMapTbl =
    {
        .isPopulated = 1,
        .ivaMap[0] =
        {
            .EncNumCh  = 10,
            .EncChList = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0 , 0, 0},
            .DecNumCh  = 0,
            .DecChList = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        },
        .ivaMap[1] =
        {
            .EncNumCh  = 16,
            .EncChList = {16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31},
            .DecNumCh  = 12,
            .DecChList = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 0, 0 , 0, 0},
        },
        .ivaMap[2] =
        {
            .EncNumCh  = 6,
            .EncChList = {10, 11, 12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
            .DecNumCh  = 4,
            .DecChList = {12, 13, 14, 15, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
        },
    };

    from this map,  we can see that the encoders are always run on the .ivaMap[0]  if there are more than 2 chains!!!

    So I wonder how to set or do so that we can run the encoder on the other IVAHD ".ivaMap[1] " or ".ivaMap[2] "

    thanks a lots

    best regards

  • 0 in reply to Steven Huang
    TI__Genius 13395 points

    Hi,

    The static table "UtilsEncDec_IvaChMapTbl" in "utils_encdec.c" is actually getting over written by app when App sends his own map.  What ever in "utils_encdec.c" is just a initialized table during the system start. You can look into any use case files under the MCFW_api to identify how the app is overriding the IVA map table

    Regards, shiju