Enum DctError 

pub enum DctError {
    NotJpeg,
    Truncated,
    CorruptEntropy,
    Unsupported(String),
    Missing(String),
    Incompatible(String),
}

Errors returned by this crate.

Variants

NotJpeg

The input does not start with a JPEG SOI marker (0xFF 0xD8).

Truncated

The input was truncated mid-marker or mid-entropy-stream.

CorruptEntropy

The entropy-coded data contains an invalid Huffman symbol or an unexpected structure.

Unsupported(String)

The JPEG uses a feature this crate does not support (e.g. progressive scan, lossless, or arithmetic coding).

Missing(String)

A required marker or table is missing from the JPEG (e.g. no SOF, no SOS, or a scan references a Huffman table that was not defined).

Incompatible(String)

The JpegCoefficients passed to write_coefficients is not compatible with the JPEG (wrong number of components, wrong block count, wrong component index).

Trait Implementations

impl Debug for DctError

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

Formats the value using the given formatter.

impl Display for DctError

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

Formats the value using the given formatter.

impl Error for DctError

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.