Struct D3d12Renderer 

pub struct D3d12Renderer { /* private fields */ }

Available on Windows and crate feature d3d12 and (crate features d3d11 or d3d12 or wasapi-renderer) only.

Terminal sink that submits decoded video frames to a caller-supplied D3d12FrameRenderer. Only built with the d3d12 feature — every consumer that doesn’t need to render to a window pulls in neither this nor the windows dependency it needs for the zero-copy path.

Handles two kinds of input, dispatched on frame.format():

• Pixel::YUV420P: CPU-decoded (e.g. from SwDecoder) — copies pixel bytes to the GPU via D3d12FrameRenderer::submit_yuv420p.
• Pixel::D3D12: GPU-decoded (from D3d12vaDecoder) — zero-copy, draws straight from the decoder’s own texture via D3d12FrameRenderer::submit_nv12_texture.

Implementations

impl D3d12Renderer

pub fn new( name: impl Into<String>, renderer: Box<dyn D3d12FrameRenderer>, ) -> Self

renderer is whatever the caller’s own D3d12FrameRenderer implementation is — already constructed and pointed at a real window/device by the time it gets here. This element doesn’t create or own a window itself.

pub fn resize(&self, width: u32, height: u32) -> Result<()>

Call when the target window resizes.

Trait Implementations

impl Element for D3d12Renderer

fn name(&self) -> Arc<str>

Returns a cheap clone (refcount bump, not a deep copy) of this element’s name — crate::bus::BusEvent stores names as Arc<str> for exactly this reason: a hot path like crate::queue::Queue posting BusEvent::Dropped once per overflowed buffer shouldn’t pay for a fresh heap allocation every time it wants to report which element it is.

fn element_type(&self) -> ElementType

See ElementType.

fn pp_log(&self) -> &PpLog

This element’s identity for crate::bus::Bus::post — same id/name as Element::name, just already wrapped as the crate::pp_log::PpLog its pp_info!/pp_warn!/pp_error! macros need. A stored private field, not built fresh per call, for the same reason name() returns a cheap Arc<str> clone instead of a fresh String — see its own docs.

fn pp_log_mut(&mut self) -> &mut PpLog

Mutable access to the same field Element::pp_log reads — used by crate::pipeline::ChainBuilder to stamp the owning crate::pipeline::Pipeline’s id onto every element that passes through it, via element_pp_log. Not meant to be called from anywhere else.

fn graph_id(&self) -> Option<ElementId>

A pre-reserved graph identity for elements that expose dynamic attachment handles. Most elements receive an ID from ChainBuilder and keep the default None implementation.

impl Sink for D3d12Renderer

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

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

Reacts to a ControlMsg (pause/resume/stop) and, for anything with a downstream of its own, forwards it on — same shape as consume, just a separate channel from MediaBuffer so it can reach every element (not just ones that already know how to interpret a data buffer) and, at a crate::queue::Queue, jump ahead of whatever data is backed up instead of waiting behind it. No default: every Sink has to consciously decide what this means for it, rather than silently dropping it.