Struct HuffmanDecoder

pub struct HuffmanDecoder<'table> {
    pub state: u64,
    /* private fields */
}

An interface around a huffman table used to decode data.

Fields

state: u64

State is used to index into the table.

Implementations

impl<'t> HuffmanDecoder<'t>

pub fn new(table: &'t HuffmanTable) -> HuffmanDecoder<'t>

Create a new decoder with the provided table

pub fn reset(self, new_table: Option<&'t HuffmanTable>)

Re-initialize the decoder, using the new table if one is provided. This might used for treeless blocks, because they re-use the table from old data.

pub fn decode_symbol(&mut self) -> u8

Decode the symbol the internal state (cursor) is pointed at and return the decoded literal.

pub fn init_state(&mut self, br: &mut BitReaderReversed<'_>) -> u8

Initialize internal state and prepare to decode data. Then, decode_symbol can be called to read the byte the internal cursor is pointing at, and next_state can be called to advance the cursor until the max number of bits has been read.

pub fn next_state(&mut self, br: &mut BitReaderReversed<'_>) -> u8

Advance the internal cursor to the next symbol. After this, you can call decode_symbol to read from the new position.