Struct ResourceEstimate 

pub struct ResourceEstimate {
    pub file_bytes: u64,
    pub pages: u64,
    pub components: u64,
    pub max_page_pixels: u64,
    pub total_pixels: u64,
    pub peak_decoded_bytes: u64,
}

Cheap, pre-decode resource estimates derived from container headers only.

Every field is computed by walking the IFF chunk tree and parsing INFO chunk headers — no page is decoded or rendered — so the estimate is always available, even for documents whose pages cannot be decoded.

Fields

file_bytes: u64

Total input size in bytes.

pages: u64

Number of pages (INFO-bearing FORM:DJVU components).

components: u64

Number of embedded components (1 for a single-page document).

max_page_pixels: u64

Largest single-page pixel area (width * height).

total_pixels: u64

Sum of every page’s pixel area.

peak_decoded_bytes: u64

Estimated peak decoded-page memory in bytes: the largest page’s area times [DECODED_BYTES_PER_PIXEL].

Trait Implementations

impl Clone for ResourceEstimate

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 ResourceEstimate

impl Debug for ResourceEstimate

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

Formats the value using the given formatter.

impl Default for ResourceEstimate

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ResourceEstimate

impl PartialEq for ResourceEstimate

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ResourceEstimate