| commit | e451fd4c824a7046d9655f7a5347c68edb9cc782 | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Sat Nov 12 04:14:11 2022 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Sat Nov 12 04:14:11 2022 +0000 |
| tree | 0315c43dc2764a132e7916559c45799800926c81 | |
| parent | 561be4c5527a7d80b16a328536a5ebd54ca6d111 [diff] | |
| parent | 34c8e34910b6f88cb6d55b294ee12bd18a611ab2 [diff] |
Snap for 9284182 from 34c8e34910b6f88cb6d55b294ee12bd18a611ab2 to udc-release Change-Id: Ibc9d12ae2d532a56edb357987e4aefcfc5dddb79
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.