| commit | be6a6a333f77917fb865a7703258a7a66bfd763d | [log] [tgz] |
|---|---|---|
| author | Andrew Walbran <[email protected]> | Thu Oct 19 19:43:08 2023 +0000 |
| committer | Automerger Merge Worker <[email protected]> | Thu Oct 19 19:43:08 2023 +0000 |
| tree | 935b8af9ba613989a098688ec3ebb43d5737e071 | |
| parent | 22f0cec5eb9a104189d341a48ceba24ac9b7a4cc [diff] | |
| parent | 09b58a7d12d2e225df0a28186ad8cd42a98e9986 [diff] |
Migrate to cargo_embargo. am: 88037d1910 am: f380c619e2 am: 09b58a7d12 Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/bitreader/+/2796197 Change-Id: I73496b3ab7ac5c14487a22e66966ceed17ea2744 Signed-off-by: Automerger Merge Worker <[email protected]>
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.