CoreMedia Namespace
The CoreMedia namespace provides low-level classes for managing and playing audio and video.
Classes
| CMAttachmentBearer |
Static and extension methods for objects that can bear attachments. |
| CMAudioFormatDescription |
A CMFormatDescription that describes an audio format. |
| CMBlockBuffer |
A contiguous range of data offsets over a possibly non-contiguous memory region. |
| CMBufferQueue |
CoreMedia Buffer Queue. |
| CMClock |
A source of time information, such as the system clock. |
| CMClockOrTimebase |
The base class for CMClock and CMTimebase. |
| CMCustomBlockAllocator | |
| CMFormatDescription |
Describes media data for audio, video, text and time codes |
| CMHevcTemporalLevelInfoSettings | |
| CMMemoryPool |
Class that manages the repetitive allocation and deallocation of large blocks of memory. |
| CMSampleBuffer |
A container of zero-or-more samples of a particular media type. |
| CMSampleBufferAttachmentKeyExtensions | |
| CMSampleBufferAttachmentSettings |
The keys for CMSampleBuffer attachments. |
| CMTextMarkupAttributes |
Manages the attributes used by AVTextStyleRule. |
| CMTimebase |
Encapsulates an application-controlled timeline. |
| CMVideoFormatDescription |
A CMFormatDescription that describes video. |
Structs
| CMSampleTimingInfo |
Timing information for a CMSampleBuffer. |
| CMTime |
A time value that represents a rational number Value/ |
| CMTimeMapping |
Specifies a mapping between a source CMTimeRange and a target CMTimeRange. |
| CMTimeRange |
A duration of time. |
| CMTimeScale |
A value to be used as a denominator in a CMTime calculation. |
| CMVideoDimensions |
Struct that contains the width and height of video media. |
| TextMarkupColor |
A color to be used with BackgroundColor and ForegroundColor. |
Interfaces
| ICMAttachmentBearer |
Marker interface for type that can bear attachments. |
Enums
| CMAttachmentMode |
Enumerates attachment propagation policies. |
| CMBlockBufferError |
An enumeration whose values specify errors relating to CMBlockBuffers. |
| CMBlockBufferFlags |
An enumeration of flags to be used with CreateEmpty(UInt32, CMBlockBufferFlags, CMBlockBufferError). |
| CMBufferQueue.TriggerCondition |
Enumerates trigger conditions for a buffer queue trigger. |
| CMClockError |
An enumeration whose values specify errors relating to CMClocks. |
| CMClosedCaptionFormatType |
An enumeration whose values specify a closed-captioning standard. |
| CMFormatDescriptionError |
An enumeration whose values specify errors relating to CMFormatDescriptions. |
| CMMediaType |
An enumeration whose values specify valid types of media. |
| CMMetadataFormatType |
An enumeration whose values specify types of timed metadata. |
| CMMuxedStreamType |
An enumeration whose values specify valid types of multiplexed media. |
| CMPixelFormat |
Enumerates pixel formats. |
| CMSampleBufferAttachmentKey | |
| CMSampleBufferError |
An enumeration whose values specify errors relating to CMSampleBuffers. |
| CMSubtitleFormatType |
An enumeration whose values specify a subtitling standard. |
| CMSyncError |
An enumeration whose values specify errors returned by GetRelativeRateAndAnchorTime(CMClockOrTimebase, CMClockOrTimebase, Double, CMTime, CMTime). |
| CMTime.Flags |
An enumeration whose values are flags used by CMTime. |
| CMTimebaseError |
An enumeration whose values specify errors relating to CMTimebases. |
| CMTimeCodeFormatType |
An enumeration whose values specify the type of a time code. |
| CMTimeRoundingMethod |
An enumeration whose values specify the rounding method to be used with a CMTime. |
| CMVideoCodecType |
An enumeration whose values specify types of video codecs. |
| LensStabilizationStatus | |
Delegates
| CMBufferCompare |
Delegate signature to compare two CoreFoundation objects, used to sort objects in a CMBufferQueue. |
| CMBufferGetBool |
Delegate signature to determine if the specified buffer that is about to be dequeued is ready. |
| CMBufferGetSize |
Delegate for getting media buffer sizes. |
| CMBufferGetTime |
Returns the CMTime object for the specified buffer. |