| commit | e65d07d15ebfc342e840eb6a6051393a5aad3d0c | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Sun Nov 13 02:13:25 2022 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Sun Nov 13 02:13:25 2022 +0000 |
| tree | 0315c43dc2764a132e7916559c45799800926c81 | |
| parent | e41f6b0e73a6678c035d47d95986836ca48ff941 [diff] | |
| parent | e451fd4c824a7046d9655f7a5347c68edb9cc782 [diff] |
Snap for 9286410 from e451fd4c824a7046d9655f7a5347c68edb9cc782 to udc-d1-release Change-Id: Iaa4612a2697fb94a388d0118486f5283cbc2195b
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.