Struct VTFrameSilo

#[repr(C)]
pub struct VTFrameSilo { /* private fields */ }

Available on crate feature VTFrameSilo only.

A VTFrameSilo stores a large number of sample buffers, as produced by a multi-pass compression session.

The sample buffers are ordered by decode timestamp. A VTFrameSilo starts out empty and is populated by calls to VTFrameSiloAddSampleBuffer to add sample buffers in ascending decode order. After the first full pass, additional passes may be performed to replace sample buffers. Each such pass must begin with a call to VTFrameSiloSetTimeRangesForNextPass, which takes a list of time ranges. Samples in these time ranges are deleted, and calls to VTFrameSiloAddSampleBuffer can then be made to provide replacements. Call VTFrameSiloCallFunctionForEachSampleBuffer or VTFrameSiloCallBlockForEachSampleBuffer to retrieve sample buffers. The VTFrameSilo may write sample buffers and data to the backing file between addition and retrieval; do not expect to get identical object pointers back.

See also Apple’s documentation

Methods from Deref<Target = CFType>

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: ConcreteType,

Available on crate feature VTSession only.

Attempt to downcast the type to that of type T.

This is the reference-variant. Use CFRetained::downcast if you want to convert a retained type. See also ConcreteType for more details on which types support being converted to.

Trait Implementations

impl AsRef<AnyObject> for VTFrameSilo

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<CFType> for VTFrameSilo

fn as_ref(&self) -> &CFType

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<VTFrameSilo> for VTFrameSilo

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AnyObject> for VTFrameSilo

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<CFType> for VTFrameSilo

fn borrow(&self) -> &CFType

Immutably borrows from an owned value.

impl ConcreteType for VTFrameSilo

fn type_id() -> CFTypeID

Get the unique CFTypeID identifier for the type.

impl Debug for VTFrameSilo

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

Formats the value using the given formatter.

impl Deref for VTFrameSilo

type Target = CFType

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for VTFrameSilo

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

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 Message for VTFrameSilo

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl PartialEq for VTFrameSilo

fn eq(&self, other: &Self) -> 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 RefEncode for VTFrameSilo

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Type for VTFrameSilo

fn retain(&self) -> CFRetained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl Eq for VTFrameSilo