Struct PixelRotationSession 

pub struct PixelRotationSession { /* private fields */ }

Apple’s VTPixelRotationSession — 90° rotation + flip engine for CVPixelBuffers.

Implementations

impl PixelRotationSession

pub fn new() -> Result<Self, VTError>

Create a new pixel rotation session.

Errors

Returns VTError::SessionCreateFailed if Apple refuses.

pub fn set_rotation(&self, rotation: Rotation) -> Result<(), VTError>

Configure the rotation applied by Self::rotate. Wraps kVTPixelRotationPropertyKey_Rotation.

Errors

Returns VTError::SetPropertyFailed on rejection.

pub fn set_flip_horizontal(&self, flip: bool) -> Result<(), VTError>

Toggle horizontal flip. Wraps kVTPixelRotationPropertyKey_FlipHorizontalOrientation.

Errors

Returns VTError::SetPropertyFailed on rejection.

pub fn set_flip_vertical(&self, flip: bool) -> Result<(), VTError>

Toggle vertical flip. Wraps kVTPixelRotationPropertyKey_FlipVerticalOrientation.

Errors

Returns VTError::SetPropertyFailed on rejection.

pub fn rotate( &self, src: &CVPixelBuffer, dst: &CVPixelBuffer, ) -> Result<(), VTError>

Rotate (and optionally flip) src into dst. For 90°/270° rotations the destination buffer’s width and height must be the inverse of the source’s.

Errors

Returns VTError::EncodeFailed on a non-zero OSStatus.

Trait Implementations

impl Drop for PixelRotationSession

fn drop(&mut self)

Executes the destructor for this type.

fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)

Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned.

impl Send for PixelRotationSession

impl Sync for PixelRotationSession