Enum Marker 

pub enum Marker {
    SOF(u8),
    DHT,
    DAC,
    RST(u8),
    SOI,
    EOI,
    SOS,
    DQT,
    DNL,
    DRI,
    APP(u8),
    COM,
    UNKNOWN(u8),
}

JPEG Markers

NOTE This doesn’t cover all markers, just the ones zune-jpeg supports.

Variants

SOF(u8)

Start Of Frame markers

• SOF(0): Baseline DCT (Huffman coding)
• SOF(1): Extended sequential DCT (Huffman coding)
• SOF(2): Progressive DCT (Huffman coding)
• SOF(3): Lossless (sequential) (Huffman coding)
• SOF(5): Differential sequential DCT (Huffman coding)
• SOF(6): Differential progressive DCT (Huffman coding)
• SOF(7): Differential lossless (sequential) (Huffman coding)
• SOF(9): Extended sequential DCT (arithmetic coding)
• SOF(10): Progressive DCT (arithmetic coding)
• SOF(11): Lossless (sequential) (arithmetic coding)
• SOF(13): Differential sequential DCT (arithmetic coding)
• SOF(14): Differential progressive DCT (arithmetic coding)
• SOF(15): Differential lossless (sequential) (arithmetic coding)

DHT

Define Huffman table(s)

DAC

Define arithmetic coding conditioning(s)

RST(u8)

Restart with modulo 8 count m

SOI

Start of image

EOI

End of image

SOS

Start of scan

DQT

Define quantization table(s)

DNL

Define number of lines

DRI

Define restart interval

APP(u8)

Reserved for application segments

COM

Comment

UNKNOWN(u8)

Unknown markers

Implementations

impl Marker

pub fn from_u8(n: u8) -> Option<Marker>

Trait Implementations

impl Clone for Marker

fn clone(&self) -> Marker

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Marker

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

Formats the value using the given formatter.

impl PartialEq for Marker

fn eq(&self, other: &Marker) -> 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 Copy for Marker

impl Eq for Marker

impl StructuralPartialEq for Marker