| commit | a4b3deae091674632f2eae03fd324260713f5de9 | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Sun Sep 15 07:08:46 2024 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Sun Sep 15 07:08:46 2024 +0000 |
| tree | 1c8eccc36849e2176abb7483e40b791c3bceb6fe | |
| parent | bf8d2e8805a84b1f8111319fea048dd35ab5926b [diff] | |
| parent | a97d37635b48902de161e9aa1d432c86a5ae761d [diff] |
Snap for 12356763 from a97d37635b48902de161e9aa1d432c86a5ae761d to busytown-mac-infra-release Change-Id: I797342da860194ae997eadd60e1bbfb249e0610d
BitReader is a helper type to extract strings of bits from a slice of bytes.
Here is how you read first a single bit, then three bits and finally four bits from a byte buffer:
use bitreader::BitReader; let slice_of_u8 = &[0b1000_1111]; let mut reader = BitReader::new(slice_of_u8); // You obviously should use try! or some other error handling mechanism here let a_single_bit = reader.read_u8(1).unwrap(); // 1 let more_bits = reader.read_u8(3).unwrap(); // 0 let last_bits_of_byte = reader.read_u8(4).unwrap(); // 0b1111
You can naturally read bits from longer buffer of data than just a single byte.
As you read bits, the internal cursor of BitReader moves on along the stream of bits. Big endian format is assumed when reading the multi-byte values. BitReader supports reading maximum of 64 bits at a time (with read_u64).
Licensed under the Apache License, Version 2.0 or the MIT license, at your option.