Function compress_frames 

pub fn compress_frames<E: Executor>(
    exec: &E,
    cfg: &CompressionConfig,
    src: &[u8],
    dict: Option<&EncoderDictionary>,
    frame_size: usize,
    out: &mut Vec<u8>,
) -> Result<()>

Compresses src as independent frames of frame_size bytes (each decodable on its own, and in parallel by decompress_frames).