Struct Metadata 

pub struct Metadata { /* private fields */ }

Raw Draco metadata map.

Entries store the exact byte payload written to the Draco bitstream. Typed helpers encode values using the same little-endian layout as C++ Draco.

Implementations

impl Metadata

pub fn new() -> Self

Creates an empty metadata map.

pub fn is_empty(&self) -> bool

Returns true when there are no entries or nested metadata blocks.

pub fn entries(&self) -> &BTreeMap<String, Vec<u8>>

Returns all raw metadata entries.

pub fn sub_metadata(&self) -> &BTreeMap<String, Metadata>

Returns all nested metadata blocks.

pub fn get_raw(&self, name: &str) -> Option<&[u8]>

Returns the raw byte value for an entry.

pub fn set_raw( &mut self, name: impl Into<String>, value: impl Into<Vec<u8>>, ) -> Result<(), DracoError>

Sets a raw byte metadata entry.

pub fn set_i32( &mut self, name: impl Into<String>, value: i32, ) -> Result<(), DracoError>

Stores an i32 metadata entry.

pub fn get_i32(&self, name: &str) -> Option<i32>

Reads an i32 metadata entry.

pub fn set_i32_array( &mut self, name: impl Into<String>, values: &[i32], ) -> Result<(), DracoError>

Stores an array of i32 metadata values.

pub fn get_i32_array(&self, name: &str) -> Option<Vec<i32>>

Reads an array of i32 metadata values.

pub fn set_f64( &mut self, name: impl Into<String>, value: f64, ) -> Result<(), DracoError>

Stores an f64 metadata entry.

pub fn get_f64(&self, name: &str) -> Option<f64>

Reads an f64 metadata entry.

pub fn set_f64_array( &mut self, name: impl Into<String>, values: &[f64], ) -> Result<(), DracoError>

Stores an array of f64 metadata values.

pub fn get_f64_array(&self, name: &str) -> Option<Vec<f64>>

Reads an array of f64 metadata values.

pub fn set_string( &mut self, name: impl Into<String>, value: impl AsRef<str>, ) -> Result<(), DracoError>

Stores a UTF-8 string metadata entry.

pub fn get_string(&self, name: &str) -> Option<&str>

Reads a UTF-8 string metadata entry.

pub fn remove_entry(&mut self, name: &str) -> Option<Vec<u8>>

Removes and returns a raw metadata entry.

pub fn get_sub_metadata(&self, name: &str) -> Option<&Metadata>

Returns a nested metadata block by name.

pub fn get_sub_metadata_mut(&mut self, name: &str) -> Option<&mut Metadata>

Returns a mutable nested metadata block by name.

pub fn insert_sub_metadata( &mut self, name: impl Into<String>, metadata: Metadata, ) -> Result<(), DracoError>

Inserts a nested metadata block.

pub fn decode(buffer: &mut DecoderBuffer<'_>) -> Result<Self, DracoError>

Available on crate feature decoder only.

Decodes a metadata block from a Draco bitstream buffer.

pub fn encode(&self, buffer: &mut EncoderBuffer) -> Result<(), DracoError>

Available on crate feature encoder only.

Encodes this metadata block to a Draco bitstream buffer.

Trait Implementations

impl Clone for Metadata

fn clone(&self) -> Metadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Metadata

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

Formats the value using the given formatter.

impl Default for Metadata

fn default() -> Metadata

Returns the “default value” for a type.

impl Eq for Metadata

impl PartialEq for Metadata

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Metadata