Merge "Handles duplicated NAL start code to fix crash on HLS streams."

    size_t nalSize;

    bool foundSlice = false;

    while ((err = getNextNALUnit(&data, &size, &nalStart, &nalSize)) == OK) {

        CHECK_GT(nalSize, 0u);

        if (nalSize == 0) continue;

        unsigned nalType = nalStart[0] & 0x1f;

        bool flush = false;