Enum MediaKind 

pub enum MediaKind {
    VideoPacket,
    AudioPacket,
    VideoFrame,
    AudioFrame,
}

Which MediaBuffer payloads a port deals in, split by medium as well as by encoding.

The medium is part of the kind because MediaBuffer::Packet alone does not carry it: a demuxer’s audio and video pads emit the same variant, so without this split, wiring a container’s audio stream into a video decoder is a link the check cannot see. Every element that deals in packets does know its own medium when it is constructed — from the stream parameters it was opened with, or from being an audio encoder rather than a video one — so the distinction costs nothing to state.

MediaBuffer::Eos is deliberately absent: every sink must accept EOS, so it is never part of what a contract can rule out.

Variants

VideoPacket

Encoded video, as MediaBuffer::Packet.

AudioPacket

Encoded audio, as MediaBuffer::Packet.

VideoFrame

Decoded MediaBuffer::Video.

AudioFrame

Decoded MediaBuffer::Audio.

Implementations

impl MediaKind

pub fn packet_for(medium: Type) -> Option<Self>

The encoded kind a stream of medium carries, or None for a medium none of this crate’s elements handle (subtitles, data). A caller with no kind to state declares OutputContract::Unknown/InputContract::Unknown and leaves that pad to the runtime check, rather than guessing.

Trait Implementations

impl Clone for MediaKind

fn clone(&self) -> MediaKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MediaKind

impl Debug for MediaKind

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

Formats the value using the given formatter.

impl Display for MediaKind

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

Formats the value using the given formatter.

impl Eq for MediaKind

impl PartialEq for MediaKind

fn eq(&self, other: &MediaKind) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MediaKind