Enum DecoderVersion 

#[repr(u32)]
pub enum DecoderVersion {
    Yolov5 = 0,
    Yolov8 = 1,
    Yolo11 = 2,
    Yolo26 = 3,
}

Decoder version for Ultralytics models.

Specifies the YOLO architecture version, which determines the decoding strategy:

• Yolov5, Yolov8, Yolo11: Traditional models requiring external NMS
• Yolo26: End-to-end models with NMS embedded in the model architecture

When decoder_version is set to Yolo26, the decoder uses end-to-end model types regardless of the nms setting.

The code is the one the Python DecoderVersion enum uses.

Variants

Yolov5 = 0

YOLOv5 - anchor-free DFL decoder, requires external NMS

Yolov8 = 1

YOLOv8 - anchor-free DFL decoder, requires external NMS

Yolo11 = 2

YOLO11 - anchor-free DFL decoder, requires external NMS

Yolo26 = 3

YOLO26 - end-to-end model with embedded NMS (one-to-one matching heads)

Implementations

impl DecoderVersion

pub const fn code(self) -> u32

The shared code for this variant. Identical on every surface.

const, deliberately: a downstream binding that cannot write Variant = OtherEnum::Variant.code() in a #[pyclass] discriminant position (PyO3 requires a literal there) can still pin that literal to this value with a const _: () = assert!(...) – a build-time check instead of a hand-synced comment. See PyTensorMemory/PyPixelFormat in crates/python-common/src/tensor.rs for the consumer.

pub fn from_code(code: u32) -> Option<Self>

Reject an unknown code rather than guessing at one.

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

The wire string form – stable, unlike Debug.

pub fn from_str_code(s: &str) -> Option<Self>

Reject an unknown string rather than guessing at one.

pub fn all() -> &'static [Self]

Every variant, for exhaustive cross-surface tests.

impl DecoderVersion

pub fn is_end_to_end(&self) -> bool

Returns true if this version uses end-to-end inference (embedded NMS).

Trait Implementations

impl Clone for DecoderVersion

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DecoderVersion

impl Debug for DecoderVersion

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DecoderVersion

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DecoderVersion

impl Hash for DecoderVersion

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DecoderVersion

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DecoderVersion

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DecoderVersion