Struct immeta::formats::gif::ApplicationExtension

pub struct ApplicationExtension {
    pub application_identifier: [u8; 8],
    pub authentication_code: [u8; 3],
}

Contains metadata for application extension block.

These blocks usually contain information about the application which was used to create the image.

Fields

application_identifier: [u8; 8]

Eight ASCII bytes of an application identifier.

authentication_code: [u8; 3]

Three bytes of an application authentication code.

Citing the GIF spec:

Sequence of three bytes used to authenticate the Application Identifier. An Application program may use an algorithm to compute a binary code that uniquely identifies it as the application owning the Application Extension.

Methods

impl ApplicationExtension

pub fn application_identifier_str(&self) -> Option<&str>

Returns application identifier as a UTF-8 string, if possible.

For correct images this method should always return Some.

pub fn authentication_code_str(&self) -> Option<&str>

Returns authentication code as a UTF-8 string, if possible.

Trait Implementations

impl Clone for ApplicationExtension

fn clone(&self) -> ApplicationExtension

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for ApplicationExtension

fn eq(&self, __arg_0: &ApplicationExtension) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &ApplicationExtension) -> bool

This method tests for !=.

impl Eq for ApplicationExtension

impl Debug for ApplicationExtension

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.