Struct CVPixelBufferPool 

pub struct CVPixelBufferPool(/* private fields */);

Opaque handle to CVPixelBufferPool

Implementations

impl CVPixelBufferPool

pub fn from_raw(ptr: *mut c_void) -> Option<CVPixelBufferPool>

Wraps a +1 retained CVPixelBufferPoolRef and returns None for null.

pub const unsafe fn from_ptr(ptr: *mut c_void) -> CVPixelBufferPool

Wraps a raw CVPixelBufferPoolRef by taking ownership without retaining it.

Safety

The caller must ensure ptr is a valid +1 retained CVPixelBufferPoolRef.

pub const fn as_ptr(&self) -> *mut c_void

Returns the wrapped raw CVPixelBufferPoolRef.

pub fn create( width: usize, height: usize, pixel_format: u32, max_buffers: usize, ) -> Result<CVPixelBufferPool, i32>

Create a new pixel buffer pool

Arguments

• width - Width of pixel buffers in the pool
• height - Height of pixel buffers in the pool
• pixel_format - Pixel format type
• max_buffers - Maximum number of buffers in the pool (0 for unlimited)

Errors

Returns a Core Video error code if the pool creation fails.

pub fn create_pixel_buffer(&self) -> Result<CVPixelBuffer, i32>

Create a pixel buffer from the pool

Errors

Returns a Core Video error code if the buffer creation fails.

pub fn flush(&self)

Flush the pixel buffer pool

Releases all available pixel buffers in the pool

pub fn type_id() -> usize

Get the Core Foundation type ID for CVPixelBufferPool

pub fn create_pixel_buffer_with_aux_attributes( &self, aux_attributes: Option<&HashMap<String, u32>>, ) -> Result<CVPixelBuffer, i32>

Create a pixel buffer from the pool with auxiliary attributes

This allows specifying additional attributes for the created buffer

Errors

Returns a Core Video error code if the buffer creation fails.

pub fn try_create_pixel_buffer(&self) -> Option<CVPixelBuffer>

Try to create a pixel buffer from the pool without blocking

Returns None if no buffers are available

pub fn flush_with_options(&self, _flags: u32)

Flush the pool with specific options

Releases buffers based on the provided flags

pub fn is_empty(&self) -> bool

Check if the pool is empty (no available buffers)

Note: This is an approximation based on whether we can create a buffer

pub fn attributes(&self) -> Option<*const c_void>

Get the pool attributes

Returns the raw pointer to the CFDictionary containing pool attributes

pub fn pixel_buffer_attributes(&self) -> Option<*const c_void>

Get the pixel buffer attributes

Returns the raw pointer to the CFDictionary containing pixel buffer attributes

Trait Implementations

impl Clone for CVPixelBufferPool

fn clone(&self) -> CVPixelBufferPool

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CVPixelBufferPool

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

Formats the value using the given formatter.

impl Display for CVPixelBufferPool

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

Formats the value using the given formatter.

impl Drop for CVPixelBufferPool

fn drop(&mut self)

Executes the destructor for this type.

impl Hash for CVPixelBufferPool

fn hash<H>(&self, state: &mut H)

where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for CVPixelBufferPool

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for CVPixelBufferPool

impl Send for CVPixelBufferPool

impl Sync for CVPixelBufferPool