Function decodeSequenceRingBuffer [src]

Decode one sequence from bit_reader into dest; see decodeSequenceSlice.

Prototype

 pub fn decodeSequenceRingBuffer( self: *DecodeState, dest: *RingBuffer, bit_reader: anytype, sequence_size_limit: usize, last_sequence: bool, ) DecodeSequenceError!usize

Parameters

self: *DecodeStatedest: *RingBuffersequence_size_limit: usizelast_sequence: bool

Possible Errors

BitStreamHasNoStartBit LiteralBitsError

EndOfStream

InvalidBitStream

MalformedFseBits

MalformedLiteralsLength DecodeLiteralsError

MalformedSequence

NotFound DecodeLiteralsError

UnexpectedEndOfLiteralStream LiteralBitsError

Source

  pub fn decodeSequenceRingBuffer(
    self: *DecodeState,
    dest: *RingBuffer,
    bit_reader: anytype,
    sequence_size_limit: usize,
    last_sequence: bool,
) DecodeSequenceError!usize {
    const sequence = try self.nextSequence(bit_reader);
    const sequence_length = @as(usize, sequence.literal_length) + sequence.match_length;
    if (sequence_length > sequence_size_limit) return error.MalformedSequence;

    try self.executeSequenceRingBuffer(dest, sequence);
    if (!last_sequence) {
        try self.updateState(.literal, bit_reader);
        try self.updateState(.match, bit_reader);
        try self.updateState(.offset, bit_reader);
    }
    return sequence_length;
}  