uvar stands for unsigned variable-sized integer
this number occupies a variable number of bytes to accommodate the integer that it's holding
it uses the first bit of the octet (0bXYYYYYYY) to signal whether the integer carries on to the next byte (X == 1) or not (X == 0),
and uses base 7 big endian encoding to read the data bytes (YYYYYYY)
you can read more about it on wikipedia.
the following table lists the first few bounds of this encoding:
decimal
unsigned big endian binary
unsigned variable binary
0
0b00000000 0b00000000 0b00000000 0b00000000
0b00000000
127 = 2^7 - 1
0b00000000 0b00000000 0b00000000 0b01111111
0b01111111
128 = 2^7
0b00000000 0b00000000 0b00000000 0b10000000
0b10000001 0b00000000
16383 = 2^14 - 1
0b00000000 0b00000000 0b00111111 0b11111111
0b11111111 0b01111111
16384 = 2^14
0b00000000 0b00000000 0b01000000 0b00000000
0b10000001 0b10000000 0b00000000
this encoding is especially useful for encoding the length of other variables as in their header (beginning of their sequence)
uvarstands for unsigned variable-sized integerthis number occupies a variable number of bytes to accommodate the integer that it's holding
it uses the first bit of the octet (0bXYYYYYYY) to signal whether the integer carries on to the next byte (X == 1) or not (X == 0),
and uses base 7 big endian encoding to read the data bytes (YYYYYYY)
you can read more about it on wikipedia.
the following table lists the first few bounds of this encoding:
this encoding is especially useful for encoding the length of other variables as in their header (beginning of their sequence)