Struct GetBitContext 

pub struct GetBitContext<'a> { /* private fields */ }

Implementations

impl<'a> GetBitContext<'a>

pub fn new(buf: &'a [u8]) -> Self

pub fn new_bits(buf: &'a [u8], size_in_bits: usize) -> Result<Self>

pub fn new_window( buf: &'a [u8], bit_pos: usize, size_in_bits: usize, ) -> Result<Self>

pub fn bits_left(&self) -> isize

pub fn bits_read(&self) -> usize

pub fn align_to_byte(&mut self)

pub fn skip_bits(&mut self, n: usize) -> Result<()>

Advance the bit reader using FFmpeg’s checked GetBitContext semantics.

FFmpeg deliberately permits the read index to enter eight bits of zero padding past the logical end of the bitstream. A large amount of its VLC code relies on that look-ahead behavior at frame boundaries.

pub fn get_bits1(&mut self) -> Result<u32>

pub fn get_bits(&mut self, n: usize) -> Result<u32>

Read up to 32 bits.

This mirrors FFmpeg’s checked GetBitContext: reads use zero-filled padding beyond size_in_bits, while the stored bit index is clamped to size_in_bits + 8. It is intentionally not an EOF error by itself; callers that require a hard boundary check use bits_left() exactly as the upstream WMA decoders do.

pub fn show_bits(&self, n: usize) -> Result<u32>

pub fn get_bits_long(&mut self, n: usize) -> Result<u32>

pub fn get_sbits(&mut self, n: usize) -> Result<i32>

Trait Implementations

impl<'a> Clone for GetBitContext<'a>

fn clone(&self) -> GetBitContext<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.