Enum Jb2Error 

pub enum Jb2Error {
    Truncated,
    BadHeaderFlag,
    InheritedDictTooLarge,
    MissingSharedDict,
    ImageTooLarge,
    EmptyDictReference,
    InvalidSymbolIndex,
    UnknownRecordType,
    UnexpectedDictRecordType,
    ZpInitFailed,
    TooManyRecords,
}

JB2 bitonal image decoding errors.

Variants

Truncated

Input ended before the JB2 stream was complete.

BadHeaderFlag

A flag bit in the image/dict header was set when it must be zero.

InheritedDictTooLarge

The inherited dictionary length exceeds the shared dictionary size.

MissingSharedDict

The stream references a shared dictionary but none was provided.

ImageTooLarge

Image dimensions exceed the safety limit (~64M pixels).

EmptyDictReference

A record references a dictionary symbol but the dictionary is empty.

InvalidSymbolIndex

A decoded symbol index is out of range for the current dictionary.

UnknownRecordType

An unrecognized record type was encountered in the image stream.

UnexpectedDictRecordType

An unexpected record type was encountered in a dictionary stream.

ZpInitFailed

The ZP arithmetic coder could not be initialized (insufficient input).

TooManyRecords

Stream contains more records than the safety limit allows.

Trait Implementations

impl Debug for Jb2Error

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

Formats the value using the given formatter.

impl Display for Jb2Error

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

Formats the value using the given formatter.

impl Error for Jb2Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for Jb2Error

fn eq(&self, other: &Jb2Error) -> 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 Jb2Error

impl StructuralPartialEq for Jb2Error