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DCT Coefficient in MPEG2 Bitstream ISO/IEC standards

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  • shaklasah
    Junior Member
    Junior Member
    • Mar 2013
    • 1

    DCT Coefficient in MPEG2 Bitstream ISO/IEC standards

    Hi,

    I am having difficulty parsing MPEG2 video bitstream. I have an encoded MPEG2 video in a binary file and I want to use one of the "Selective Encryption Algorithms" that encrypts only the "DC signs in intra-macroblocks".

    Anyone can help me fining DC Coefficients and AC Coefficient in a bitsream. I mean is there a specific header for that like the one the sequence start by of the picture,... etc


    Thanks a lot
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