| commit | e41f6b0e73a6678c035d47d95986836ca48ff941 | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Wed Nov 09 06:13:45 2022 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Wed Nov 09 06:13:45 2022 +0000 |
| tree | 92beeeecfd46bebe2c32ac9a11e1ea30763198aa | |
| parent | e979cb0394fdd8b3c58a9fc60ae1ddebd78b51d5 [diff] | |
| parent | 561be4c5527a7d80b16a328536a5ebd54ca6d111 [diff] |
Snap for 9270727 from 561be4c5527a7d80b16a328536a5ebd54ca6d111 to udc-d1-release Change-Id: Iab2af47dffe19b1afdbf4996bbf7f02f6efd0691
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.