Function jpeg_decoder::decoder::decode_block_successive_approximation

fn decode_block_successive_approximation<R: Read>(
    reader: &mut R,
    coefficients: &mut [i16; 64],
    huffman: &mut HuffmanDecoder,
    ac_table: Option<&HuffmanTable>,
    spectral_selection: Range<u8>,
    successive_approximation_low: u8,
    eob_run: &mut u16,
) -> Result<(), Error>