Struct SrcPad 

pub struct SrcPad { /* private fields */ }

An output port an Element owns. Data only ever leaves an element through one of its src pads — there is no other way to reach downstream.

This is what fan-out is, in this design: an element with more than one src pad is a tee — there’s no separate “Tee” primitive in the pad/element model itself. crate::elements::FileDemuxer is the plain form of it: one pad per container stream, chosen once at wiring time via a normal &mut [SrcPad]. crate::elements::Tee is the one deliberate exception to that plain shape — its pads live behind a lock instead, so a TeeHandle can add or remove one from a different thread than whatever is driving it; see that module for why.

Implementations

impl SrcPad

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

pub fn name(&self) -> &str

pub fn is_linked(&self) -> bool

pub fn peer_identity(&self) -> Option<(ElementType, Arc<str>)>

The linked sink’s own identity, without touching the link itself — lets a caller that just saw SrcPad::push/SrcPad::control fail (e.g. crate::elements::Tee, fanning out to several pads at once) report which downstream element the failure actually came from, instead of only knowing its own. None for an unlinked pad.

pub fn push(&mut self, buf: MediaBuffer) -> Result<()>

Pushes a buffer to whatever this pad is linked to. Pushing into an unlinked pad silently drops the buffer (e.g. a demuxer stream nobody cared to link).

pub fn control(&mut self, msg: ControlMsg) -> Result<()>

Forwards a ControlMsg to whatever this pad is linked to — mirrors SrcPad::push, just for control instead of data. Pushing into an unlinked pad is a no-op, same as push.