Struct VTDecompressionSession 

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

Implementations

impl VTDecompressionSession

pub fn new( video_format_description: CMVideoFormatDescription, video_decoder_specification: Option<CFDictionary<CFString, CFType>>, destination_image_buffer_attributes: Option<CFDictionary<CFString, CFType>>, ) -> Result<Self, OSStatus>

pub unsafe fn new_with_callback( video_format_description: CMVideoFormatDescription, video_decoder_specification: Option<CFDictionary<CFString, CFType>>, destination_image_buffer_attributes: Option<CFDictionary<CFString, CFType>>, output_callback: Option<*const VTDecompressionOutputCallbackRecord>, ) -> Result<Self, OSStatus>

pub unsafe fn decode_frame( &self, sample_buffer: CMSampleBuffer, decode_flags: VTDecodeFrameFlags, source_frame_ref_con: *mut c_void, ) -> Result<VTDecodeInfoFlags, OSStatus>

pub fn decode_frame_with_closure<F>( &self, sample_buffer: CMSampleBuffer, decode_flags: VTDecodeFrameFlags, closure: F, ) -> Result<VTDecodeInfoFlags, OSStatus>

where F: Fn(OSStatus, VTDecodeInfoFlags, CVImageBuffer, CMTime, CMTime) + 'static,

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

pub fn can_accept_format_description( &self, new_format_desc: CMFormatDescription, ) -> bool

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

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

pub fn is_hardware_decode_supported(codec_type: CMVideoCodecType) -> bool

Trait Implementations

impl Clone for VTDecompressionSession

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 VTDecompressionSession

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

Formats the value using the given formatter.

impl Drop for VTDecompressionSession

fn drop(&mut self)

Executes the destructor for this type.

impl PartialEq for VTDecompressionSession

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 VTDecompressionSession

type Ref = *const c_void

The reference type wrapped inside this type.

fn as_concrete_TypeRef(&self) -> VTDecompressionSessionRef

Returns the object as its concrete TypeRef.

unsafe fn wrap_under_get_rule(reference: VTDecompressionSessionRef) -> 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: VTDecompressionSessionRef) -> 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 VTDecompressionSession

fn as_session(&self) -> VTSession

fn into_session(self) -> VTSession

where Self: Sized,

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

fn to_void(&self) -> *const c_void

impl ToVoid<VTDecompressionSession> for VTDecompressionSessionRef

fn to_void(&self) -> *const c_void

impl ToVoid<VTDecompressionSession> for VTDecompressionSession

fn to_void(&self) -> *const c_void

impl ConcreteCFType for VTDecompressionSession

impl Eq for VTDecompressionSession