Struct FrameInfo 

pub struct FrameInfo {
    pub precision: u8,
    pub height: u16,
    pub width: u16,
    pub components: Vec<Component>,
    pub max_h_sampling: u8,
    pub max_v_sampling: u8,
    pub mcu_width: u16,
    pub mcu_height: u16,
    pub mcus_wide: u16,
    pub mcus_tall: u16,
    pub is_progressive: bool,
}

Frame information parsed from SOF0/SOF2 marker.

Fields

precision: u8

Sample precision in bits (must be 8).

height: u16

Image height in pixels.

width: u16

Image width in pixels.

components: Vec<Component>

Components in the frame.

max_h_sampling: u8

Maximum horizontal sampling factor across all components.

max_v_sampling: u8

Maximum vertical sampling factor across all components.

mcu_width: u16

MCU width in blocks (= max_h_sampling * 8 pixels).

mcu_height: u16

MCU height in blocks (= max_v_sampling * 8 pixels).

mcus_wide: u16

Number of MCUs horizontally.

mcus_tall: u16

Number of MCUs vertically.

is_progressive: bool

Whether this is a progressive JPEG (SOF2). False for baseline (SOF0).

Implementations

impl FrameInfo

pub fn blocks_wide(&self, comp_idx: usize) -> usize

Number of 8×8 blocks wide for a given component.

pub fn blocks_tall(&self, comp_idx: usize) -> usize

Number of 8×8 blocks tall for a given component.

Trait Implementations

impl Clone for FrameInfo

fn clone(&self) -> FrameInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameInfo

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

Formats the value using the given formatter.