| commit | 6763f8dcc1e104ebb7634041498b006b142304de | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Fri Oct 20 03:17:07 2023 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Fri Oct 20 03:17:07 2023 +0000 |
| tree | 935b8af9ba613989a098688ec3ebb43d5737e071 | |
| parent | 2c27d32545832c8313b809cf9f78b1739e5cb8ae [diff] | |
| parent | 22f0cec5eb9a104189d341a48ceba24ac9b7a4cc [diff] |
Snap for 10975086 from 22f0cec5eb9a104189d341a48ceba24ac9b7a4cc to 24D1-release Change-Id: Icd0718c5d31465112232cc1e5cc000ab60a30999
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.