Struct VTCompressionSession 

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

Implementations

impl VTCompressionSession

pub fn new( width: i32, height: i32, codec_type: CMVideoCodecType, encoder_specification: CFDictionary<CFString, CFType>, source_image_buffer_attributes: CFDictionary<CFString, CFType>, compressed_data_allocator: CFAllocator, ) -> Result<VTCompressionSession, OSStatus>

pub unsafe fn new_with_callback( width: i32, height: i32, codec_type: CMVideoCodecType, encoder_specification: CFDictionary<CFString, CFType>, source_image_buffer_attributes: CFDictionary<CFString, CFType>, compressed_data_allocator: CFAllocator, output_callback: Option<*const VTCompressionOutputCallback>, output_callback_ref_con: Option<*mut c_void>, ) -> Result<VTCompressionSession, OSStatus>

pub fn invalidate(&self)

pub fn get_pixel_buffer_pool(&self) -> CVPixelBufferPool

pub fn prepare_to_encode_frames(&self) -> Result<(), OSStatus>

pub unsafe fn encode_frame( &self, image_buffer: CVImageBuffer, presentation_time_stamp: CMTime, duration: CMTime, frame_properties: CFDictionary<CFString, CFType>, source_frame_refcon: *mut c_void, ) -> Result<VTEncodeInfoFlags, OSStatus>

pub fn encode_frame_with_closure<F>( &self, image_buffer: CVImageBuffer, presentation_time_stamp: CMTime, duration: CMTime, frame_properties: CFDictionary<CFString, CFType>, closure: F, ) -> Result<VTEncodeInfoFlags, OSStatus>

where F: Fn(OSStatus, VTEncodeInfoFlags, CMSampleBufferRef) + 'static,

pub fn complete_frames( &self, complete_until_presentation_time_stamp: CMTime, ) -> Result<(), OSStatus>

pub fn begin_pass( &self, begin_pass_flags: VTCompressionSessionOptionFlags, ) -> Result<(), OSStatus>

pub fn end_pass(&self) -> Result<Boolean, OSStatus>

pub fn get_time_ranges_for_next_pass( &self, ) -> Result<Vec<CMTimeRange>, OSStatus>

Trait Implementations

impl Clone for VTCompressionSession

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VTCompressionSession

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

Formats the value using the given formatter.

impl Drop for VTCompressionSession

fn drop(&mut self)

Executes the destructor for this type.

impl PartialEq for VTCompressionSession

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 TCFType for VTCompressionSession

type Ref = *const c_void

The reference type wrapped inside this type.

fn as_concrete_TypeRef(&self) -> VTCompressionSessionRef

Returns the object as its concrete TypeRef.

unsafe fn wrap_under_get_rule(reference: VTCompressionSessionRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation’s “Get Rule”. The reference count is bumped.

fn as_CFTypeRef(&self) -> CFTypeRef

Returns the object as a raw CFTypeRef. The reference count is not adjusted.

unsafe fn wrap_under_create_rule(reference: VTCompressionSessionRef) -> Self

Returns an instance of the object, wrapping the underlying CFTypeRef subclass. Use this when following Core Foundation’s “Create Rule”. The reference count is not bumped.

fn type_id() -> CFTypeID

Returns the type ID for this class.

fn as_CFType(&self) -> CFType

Returns the object as a wrapped CFType. The reference count is incremented by one.

fn into_CFType(self) -> CFType

where Self: Sized,

Returns the object as a wrapped CFType. Consumes self and avoids changing the reference count.

fn retain_count(&self) -> isize

Returns the reference count of the object. It is unwise to do anything other than test whether the return value of this method is greater than zero.

fn type_of(&self) -> usize

Returns the type ID of this object.

fn show(&self)

Writes a debugging version of this object on standard error.

fn instance_of<OtherCFType>(&self) -> bool

where OtherCFType: TCFType,

Returns true if this value is an instance of another type.

impl TVTSession for VTCompressionSession

fn as_session(&self) -> VTSession

fn into_session(self) -> VTSession

where Self: Sized,

impl<'a> ToVoid<VTCompressionSession> for &'a VTCompressionSession

fn to_void(&self) -> *const c_void

impl ToVoid<VTCompressionSession> for VTCompressionSessionRef

fn to_void(&self) -> *const c_void

impl ToVoid<VTCompressionSession> for VTCompressionSession

fn to_void(&self) -> *const c_void

impl ConcreteCFType for VTCompressionSession

impl Eq for VTCompressionSession