Struct WatermarkConfig 

pub struct WatermarkConfig {
    pub content: WatermarkContent,
    pub position: OverlayPosition,
    pub opacity: f32,
    pub scale: f32,
    pub margin: u32,
    pub start_time: Option<f64>,
    pub end_time: Option<f64>,
}

Configuration for a single watermark overlay.

Fields

content: WatermarkContent

Content to overlay.

position: OverlayPosition

Position anchor.

opacity: f32

Opacity from 0.0 (invisible) to 1.0 (fully opaque).

scale: f32

Scale factor for the overlay (1.0 = original size).

margin: u32

Optional margin from the anchor edge in pixels.

start_time: Option<f64>

Optional start time in seconds (overlay appears at this time).

end_time: Option<f64>

Optional end time in seconds (overlay disappears at this time).

Implementations

impl WatermarkConfig

pub fn text(text: impl Into<String>) -> Self

Create a text watermark with default settings.

pub fn image(path: impl Into<String>) -> Self

Create an image-file watermark.

pub fn with_position(self, pos: OverlayPosition) -> Self

Set position.

pub fn with_opacity(self, opacity: f32) -> Self

Set opacity (clamped to 0.0 - 1.0).

pub fn with_scale(self, scale: f32) -> Self

Set scale factor.

pub fn with_margin(self, margin: u32) -> Self

Set margin.

pub fn with_time_range(self, start: f64, end: f64) -> Self

Set time range visibility.

pub fn is_visible_at(&self, time_seconds: f64) -> bool

Check whether the watermark is visible at a given timestamp.

pub fn effective_opacity(&self, time_seconds: f64) -> f32

Compute effective opacity at the given timestamp.

Trait Implementations

impl Clone for WatermarkConfig

fn clone(&self) -> WatermarkConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WatermarkConfig

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

Formats the value using the given formatter.