readUint32BE function
Reads a 32-bit unsigned integer value in big-endian byte order from a list.
Implementation
int readUint32BE(List<int> array, [int offset = 0]) {
return ((array[offset] << 24) |
(array[offset + 1] << 16) |
(array[offset + 2] << 8) |
array[offset + 3]) &
mask32;
}