Struct MetadataKind 

pub struct MetadataKind;

Marker type for metadata frame capture operations.

Trait Implementations

impl CaptureKind for MetadataKind

const FRAME_TYPE: c_uint = NDIlib_frame_type_e_NDIlib_frame_type_metadata

The frame-type discriminant NDIlib_recv_capture_v3 returns for this kind.

type Ref<'rx> = MetadataFrameRef<'rx>

The borrowed, zero-copy view of a captured frame, tied to the receiver that produced it.

type Owned = MetadataFrame

The owned, 'static frame produced by copying a borrowed view.

unsafe fn capture_into( instance: *mut NDIlib_recv_instance_type, frame: *mut Self::RawFrame, timeout_ms: u32, ) -> c_uint

Run a capture for this kind, routing frame into the matching NDIlib_recv_capture_v3 slot and ignoring the others.

unsafe fn make_ref<'rx>(guard: Guard<'rx, Self>) -> Result<Self::Ref<'rx>>

Wrap a freshly captured frame guard in its borrowed view, validating any kind-specific invariants (e.g. FourCC) during construction.

fn ref_to_owned(frame: &Self::Ref<'_>) -> Result<Self::Owned>

Copy a borrowed view into an owned, 'static frame.

impl FrameFree for MetadataKind

const REF_DEBUG_NAME: &'static str = "MetadataFrameRef"

The Debug struct name of the borrowed reference that wraps this guard (e.g. "VideoFrameRef" or "FrameSyncVideoRef"), so the shared generic Debug impls render the historically-correct type name.

type Instance = *mut NDIlib_recv_instance_type

The SDK instance handle that owns the frame buffers (and through which they must be freed).

type RawFrame = NDIlib_metadata_frame_t

The raw FFI frame type from the NDI SDK.

unsafe fn free(instance: Self::Instance, frame: &mut Self::RawFrame)

Free a single captured frame through its owning instance.