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question on simple_encode

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hello Intel-friends,

OS: Ubuntu 12.04

       mediasdk-tutorials-0.0.3

       MediaServerStudioEssentials2015R6

Platform:  i5-4570S

     As I trace the code of Simple_encode.cpp, I found something below and have question about reason of restriction of 2048. Do you know why?? Hardware design or else?? I have checked https://software.intel.com/sites/default/files/mediasdk-man.pdf but found no answer.

    w /= 2;
    h /= 2;
    ptr = pData->UV + pInfo->CropX + (pInfo->CropY / 2) * pitch;
    if (w > 2048)                                                                      ==> what the restriction means ??
        return MFX_ERR_UNSUPPORTED;      

 


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