coremedia

package
v0.5.0 Latest Latest
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 Go to latest Published: Jun 21, 2024 License: MIT Imports: 3 Imported by: 0

Documentation

Overview

Represent time-based audio-visual assets with essential data types.

Apple Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type AudioFormatDescriptionMask 

type AudioFormatDescriptionMask uint32

A type for mask bits that represent parts of an audio format description. Full Topic

type AudioFormatDescriptionRef 

type AudioFormatDescriptionRef FormatDescriptionRef

type BaseClassVersion 

type BaseClassVersion uint
[Full Topic]

type BlockBufferCustomBlockSource 

type BlockBufferCustomBlockSource struct {
	Version   uint32
	Pad_cgo_0 [24]byte
}

A structure to support custom memory allocation and deallocation for a block used in a block buffer. Full Topic

type BlockBufferFlags 

type BlockBufferFlags uint32

A type for parameters that contain block buffer feature and control flags. Full Topic

type BlockBufferRef 

type BlockBufferRef uintptr

A reference to a block buffer object. Full Topic

type BufferCallbacks 

type BufferCallbacks struct {
	Version   uint32
	Pad_cgo_0 [64]byte
}

A structure that stores the callbacks that perform buffer operations. Full Topic

type BufferCompareCallback 

type BufferCompareCallback = func(buf1 BufferRef, buf2 BufferRef, refcon unsafe.Pointer) corefoundation.ComparisonResult

Callback that compares one CMBuffer with another. Full Topic

type BufferCompareHandler 

type BufferCompareHandler = func(buf1 BufferRef, buf2 BufferRef) corefoundation.ComparisonResult
[Full Topic]

type BufferGetBooleanCallback 

type BufferGetBooleanCallback = func(buf BufferRef, refcon unsafe.Pointer) bool

Callback that returns a Boolean value from a CMBuffer. Full Topic

type BufferGetBooleanHandler 

type BufferGetBooleanHandler = func(buf BufferRef) bool
[Full Topic]

type BufferGetSizeCallback 

type BufferGetSizeCallback = func(buf BufferRef, refcon unsafe.Pointer) uint

A client callback that returns a size. Full Topic

type BufferGetSizeHandler 

type BufferGetSizeHandler = func(buf BufferRef) uint
[Full Topic]

type BufferGetTimeCallback 

type BufferGetTimeCallback = func(buf BufferRef, refcon unsafe.Pointer) Time

Callback that returns a CMTime from a CMBuffer. Full Topic

type BufferGetTimeHandler 

type BufferGetTimeHandler = func(buf BufferRef) Time
[Full Topic]

type BufferHandlers 

type BufferHandlers struct {
	Version                     uint64
	GetDecodeTimeStamp          uintptr                  // *_Ctype_struct___3
	GetPresentationTimeStamp    uintptr                  // *_Ctype_struct___3
	GetDuration                 uintptr                  // *_Ctype_struct___3
	IsDataReady                 uintptr                  // *_Ctype_struct___4
	Compare                     uintptr                  // *_Ctype_struct___5
	DataBecameReadyNotification corefoundation.StringRef //*_Ctype_struct___CFString
	GetSize                     uintptr                  // *_Ctype_struct___6
}

A structure that stores the handlers that perform buffer operations. Full Topic

type BufferQueueRef 

type BufferQueueRef uintptr

A reference to a buffer queue object. Full Topic

type BufferQueueTriggerCallback 

type BufferQueueTriggerCallback = func(triggerRefcon unsafe.Pointer, triggerToken unsafe.Pointer)

A callback for the system to invoke when a trigger condition becomes true. Full Topic

type BufferQueueTriggerCondition 

type BufferQueueTriggerCondition int32

A type to specify conditions to associate with a buffer queue trigger. Full Topic

type BufferQueueTriggerHandler 

type BufferQueueTriggerHandler = func(triggerToken unsafe.Pointer)

A type alias for a trigger handler. Full Topic

type BufferRef 

type BufferRef corefoundation.TypeRef

type BufferValidationCallback 

type BufferValidationCallback = func(queue BufferQueueRef, buf BufferRef, validationRefCon unsafe.Pointer) uint

A type alias for a callback that tests whether a buffer is in a valid state to add to a queue. Full Topic

type BufferValidationHandler 

type BufferValidationHandler = func(queue BufferQueueRef, buf BufferRef) uint

A type alias for a handler that tests whether a buffer is in a valid state to add to a queue. Full Topic

type ClockRef 

type ClockRef uintptr

An object that represents a source of time. Full Topic

type ClosedCaptionFormatType 

type ClosedCaptionFormatType uint

A closed caption format type. Full Topic

type FormatDescriptionRef 

type FormatDescriptionRef uintptr

An object that describes a media format descriptor. Full Topic

type ItemCount 

type ItemCount corefoundation.Index

A datatype that represents an item count. Full Topic

type ItemIndex 

type ItemIndex corefoundation.Index

A datatype that represents an item index. Full Topic

type MemoryPoolRef 

type MemoryPoolRef uintptr

A reference to a memory pool object. Full Topic

type MetadataFormatDescriptionRef 

type MetadataFormatDescriptionRef FormatDescriptionRef

type PixelFormatType 

type PixelFormatType uint

A pixel format type. Full Topic

type SampleBufferInvalidateCallback 

type SampleBufferInvalidateCallback = func(sbuf SampleBufferRef, invalidateRefCon uint64)

Client callback called by coremedia/cmsamplebufferinvalidate. Full Topic

type SampleBufferInvalidateHandler 

type SampleBufferInvalidateHandler = func(sbuf SampleBufferRef)

Client callback called by coremedia/cmsamplebufferinvalidate. Full Topic

type SampleBufferMakeDataReadyCallback 

type SampleBufferMakeDataReadyCallback = func(sbuf SampleBufferRef, makeDataReadyRefcon unsafe.Pointer) uint

Client callback called by coremedia/cmsamplebuffermakedataready. Full Topic

type SampleBufferMakeDataReadyHandler 

type SampleBufferMakeDataReadyHandler = func(sbuf SampleBufferRef) uint

A block the system calls to make the sample buffer ready for use. Full Topic

type SampleBufferRef 

type SampleBufferRef uintptr

A reference to an immutable sample buffer object. Full Topic

type SampleTimingInfo 

type SampleTimingInfo struct {
	Duration              Time
	PresentationTimeStamp Time
	DecodeTimeStamp       Time
}

A collection of timing information for a sample in a sample buffer. Full Topic

type SimpleQueueRef 

type SimpleQueueRef uintptr

A reference to an object that provides a simple lockless queue of elements. Full Topic

type StructVersion 

type StructVersion uint
[Full Topic]

type TextDisplayFlags 

type TextDisplayFlags uint32

An integer value that describes the display mode flags for text media. Full Topic

type TextFormatType 

type TextFormatType uint

A text format type. Full Topic

type TextJustificationValue 

type TextJustificationValue int8

An integer value that describes the justification modes for text media. Full Topic

type Time 

type Time struct {
	Value     int64
	Timescale int32
	Flags     uint32
	Epoch     int64
}

A structure that represents time. Full Topic

type TimeEpoch 

type TimeEpoch int64

An epoch for a time. Full Topic

type TimeFlags 

type TimeFlags uint32

A structure that defines the flags for a time value. Full Topic

type TimeMapping 

type TimeMapping struct {
	Source TimeRange
	Target TimeRange
}

A structure that maps a segment of a source time range to a target time range. Full Topic

type TimeRange 

type TimeRange struct {
	Start    Time
	Duration Time
}

A structure that represents a time range. Full Topic

type TimeRoundingMethod 

type TimeRoundingMethod uint32

An enumeration of rounding methods to use when performing time calculations. Full Topic

type TimeScale 

type TimeScale int32

An integer timescale. Full Topic

type TimeValue 

type TimeValue int64

An integer time value. Full Topic

type TimebaseRef 

type TimebaseRef uintptr

A model of a timeline under application control. Full Topic

type VideoCodecType 

type VideoCodecType uint

A video codec type. Full Topic

type VideoDimensions 

type VideoDimensions struct {
	Width  int32
	Height int32
}

A structure that represents video dimensions. Full Topic

type VideoFormatDescriptionRef 

type VideoFormatDescriptionRef FormatDescriptionRef

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