FCameraShmWriter¶

Per-camera SHM publisher.

Writes raw pixel frames into a double-buffered SHM region named cam_<prefix>_<name>.shm. Same producer pattern as the state snapshot publisher: write into !latest, flip latest, bump sequence. No background thread -- the camera readback callback feeds this directly on the game / render-thread sidecar. Wire layout per slot: [u32 size][bytes...]. The byte format depends on the camera mode and is documented out-of-band via the handshake: - Real: width * height * 4 bytes BGRA8 (FColor). - Depth: width * height * 4 bytes float32 (single channel). - Semantic / Instance: width * height * 4 bytes BGRA8 with a per-class / per-instance color tint baked in. All four modes share the same 4 bytes-per-pixel stride, so the SHM region size is independent of mode.

Attribute	Value
Kind	`Class`

Properties Functions

Properties¶

Public Properties¶

Property	Type	Description
`default`	``
`Unmap`	`**`
`Region`	private: FMjShmRegion

default¶

Type:

Unmap¶

Type: **

Region¶

Type: private: FMjShmRegion

Private Properties¶

Property	Type	Description
`ExpectedPixels`	`int32`

ExpectedPixels¶

Type: int32

Functions¶

Public Functions¶

General¶

Function	Returns	Description
`Open()`	`bool`	Open / truncate the SHM file. The slot stride is sized to hold
`Close()`	void	Unmap; optionally remove the backing file.
`PushFrame()`	void	Push one frame's raw bytes. Silently drops if `ByteCount` doesn't

Open¶

Open / truncate the SHM file. The slot stride is sized to hold

Signature: Open(const FString& Path, FIntPoint Resolution)
Returns: bool

Close¶

Unmap; optionally remove the backing file.

Signature: Close(bool bDeleteFile)

PushFrame¶

Push one frame's raw bytes. Silently drops if ByteCount doesn't

Signature: PushFrame(const void* Data, uint32 ByteCount)