Enum CodecName 

pub enum CodecName {
    None,
    JPEG,
    Zlib,
    LZ4,
    Blosc,
    BSLZ4,
    LZ4HDF5,
}

Codec names for compressed NDArray data (matching C++ NDCodecName).

Variants

None

JPEG

Zlib

Zlib (deflate) compression (C++ NDCODEC_ZLIB).

LZ4

Blosc

BSLZ4

LZ4HDF5

LZ4 in the HDF5 framing variant (C++ NDCODEC_LZ4HDF5).

Implementations

impl CodecName

pub fn as_str(self) -> &'static str

Codec name string as published in the EPICS CODEC parameter and the NDArray.codec.name field (matching C++ NDCodecName).

pub fn ordinal(self) -> i32

Value of the COMPRESSOR parameter that selects this codec, i.e. C NDCodecCompressor_t (Codec.h:12-18): NONE=0, JPEG=1, BLOSC=2, LZ4=3, BSLZ4=4. The Rust-only zlib/lz4hdf5 codecs take ordinals after the C set so they never shadow a C ordinal.

This is the single mapping between the COMPRESSOR wire value and the codec, used both when the operator writes the parameter and when the Codec plugin reports the codec it found on a decompressed array (C setIntegerParam(NDCodecCompressor, ...), NDPluginCodec.cpp:734-757).

pub fn from_ordinal(ordinal: i32) -> Self

Inverse of CodecName::ordinal. Unknown ordinals select None, as C does for any compressor value outside the enum (NDPluginCodec.cpp:680-683 case NDCODEC_NONE: default:).

Trait Implementations

impl Clone for CodecName

fn clone(&self) -> CodecName

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for CodecName

impl Debug for CodecName

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for CodecName

impl PartialEq for CodecName

fn eq(&self, other: &CodecName) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for CodecName