Struct CallPictures 

pub struct CallPictures { /* private fields */ }

Decodes a call’s pictures; see the module docs.

Implementations

impl CallPictures

pub fn new() -> CallPictures

A decoder that wakes the component being built (or handling an event) when a picture is ready.

pub fn receive(&mut self, pictures: Vec<Picture>)

Hand over the pictures of one Pictures answer, oldest first.

pub fn poll(&mut self)

Collect pictures a decoder finished after the unit that completed them was handed over (a page’s decoder works on its own schedule; a quiet stream’s last picture). Skipped while the decoding job holds the decoders: the UI thread never waits for it, and the job hands over what it decodes itself.

pub fn pending(&self) -> usize

Pictures handed over and still being decoded: a screenshot waits for them.

pub fn feed_test_pattern( &mut self, person: &str, source: PictureSource, _: (u16, u16), variant: u8, ) -> bool

Code a short run of a moving test picture (colour bars with a block sweeping across, shaded by variant) exactly as a call codes a camera or screen, and decode it for person’s source: screenshots and tests show pictures that went through the real encoder and decoder. False when this build or machine has no encoder (a page has none).

pub fn insert(&mut self, person: &str, source: PictureSource, image: ImageData)

Put a picture decoded elsewhere in place (a browser’s page decodes its own).

pub fn picture(&self, person: &str, source: PictureSource) -> Option<ImageData>

The newest picture of person’s camera or screen.

pub fn pictures(&self) -> Vec<(String, PictureSource, ImageData)>

pub fn take_changed(&mut self) -> bool

Whether a picture arrived since this was last asked.

pub fn retain(&mut self, keep: impl Fn(&str, PictureSource) -> bool)

Keep only the pictures keep still shows (a camera turned off, a person who left): their tiles go back to showing the person.

pub fn clear(&mut self)

Forget everything: the call ended.

Trait Implementations

impl Default for CallPictures

fn default() -> CallPictures

Returns the “default value” for a type.