| commit | e8d1370c811036c426045d9796f67d6a8be39b35 | [log] [tgz] |
|---|---|---|
| author | Android Build Coastguard Worker <[email protected]> | Thu Aug 15 23:16:49 2024 +0000 |
| committer | Android Build Coastguard Worker <[email protected]> | Thu Aug 15 23:16:49 2024 +0000 |
| tree | 1c8eccc36849e2176abb7483e40b791c3bceb6fe | |
| parent | cc868277d08638dd22fd2ef5b63fe07263193168 [diff] | |
| parent | d95feab99e6f4425f0c9f752048c200940db0f79 [diff] |
Snap for 12235283 from d95feab99e6f4425f0c9f752048c200940db0f79 to 25D4-release Change-Id: I292a92fa05ae406ed83b9833bb601283afa48c80
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.