Struct Decoder 

pub struct Decoder { /* private fields */ }

Stateful decoder that enforces a per-tile memory budget during decoding.

Pass a Decoder to every raw.decode() / into_tile() call and to from_bytes-style parsers. Each method charges the budget before performing heap allocations, so the total heap used never exceeds max_bytes (in bytes).

use mlt_core::Decoder;

// Default: 10 MiB budget.
let mut dec = Decoder::default();

// Custom budget.
let mut dec = Decoder::with_max_size(64 * 1024 * 1024);

Implementations

impl Decoder

pub fn with_max_size(max_bytes: u32) -> Self

Create a decoder with a custom memory budget (in bytes).

pub fn decode_all<'a>( &mut self, layers: impl IntoIterator<Item = Layer<'a>>, ) -> MltResult<Vec<ParsedLayer<'a>>>

pub fn consumed(&self) -> u32

pub fn reset_budget(&mut self)

Reset the memory budget to zero, keeping scratch buffers allocated.

Call this between tiles when reusing a single Decoder for multiple decodes — the per-tile budget is enforced fresh, but the internal buffer_u32 / buffer_u64 scratch space is retained so it doesn’t need to be re-allocated.

Safety / correctness precondition

Only call this after dropping any decoded allocations returned from the previous tile. Resetting the budget while earlier decoded outputs are still alive makes the budget enforceable only per-tile and can bypass the stronger guarantee that total live heap tracked by this decoder never exceeds the configured maximum.

Trait Implementations

impl Clone for Decoder

fn clone(&self) -> Decoder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Decoder

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

Formats the value using the given formatter.

impl Default for Decoder

fn default() -> Decoder

Returns the “default value” for a type.

impl PartialEq for Decoder

fn eq(&self, other: &Decoder) -> 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 Eq for Decoder

impl StructuralPartialEq for Decoder