版本记录

前言

AVFoundation框架是ios中很重要的框架，所有与视频音频相关的软硬件控制都在这个框架里面，接下来这几篇就主要对这个框架进行介绍和讲解。感兴趣的可以看我上几篇。
1. AVFoundation框架解析（一）—— 基本概览
2. AVFoundation框架解析（二）—— 实现视频预览录制保存到相册
3. AVFoundation框架解析（三）—— 几个关键问题之关于框架的深度概括
4. AVFoundation框架解析（四）—— 几个关键问题之AVFoundation探索（一）
5. AVFoundation框架解析（五）—— 几个关键问题之AVFoundation探索（二）
6. AVFoundation框架解析（六）—— 视频音频的合成（一）
7. AVFoundation框架解析（七）—— 视频组合和音频混合调试
8. AVFoundation框架解析（八）—— 优化用户的播放体验
9. AVFoundation框架解析（九）—— AVFoundation的变化（一）

AVFoundation的变化

我写这篇文章的时候是2017-09-01，文档中列出了AVFoundation框架的更新和改变，下面我就给大家列出来一下。

AVCaptureOutput.h

Added AVCaptureAudioDataOutput
Added AVCaptureAudioDataOutput.audioSettings
Added AVCaptureAudioDataOutput.sampleBufferCallbackQueue
Added AVCaptureAudioDataOutput.sampleBufferDelegate
Added -[AVCaptureAudioDataOutput setSampleBufferDelegate:queue:]
Added AVCaptureAudioDataOutputSampleBufferDelegate
Added -[AVCaptureAudioDataOutputSampleBufferDelegate captureOutput:didOutputSampleBuffer:fromConnection:]
Added AVCaptureAudioFileOutput
Added AVCaptureAudioFileOutput.audioSettings
Added +[AVCaptureAudioFileOutput availableOutputFileTypes]
Added AVCaptureAudioFileOutput.metadata
Added -[AVCaptureAudioFileOutput startRecordingToOutputFileURL:outputFileType:recordingDelegate:]
Added AVCaptureAudioPreviewOutput
Added AVCaptureAudioPreviewOutput.outputDeviceUniqueID
Added AVCaptureAudioPreviewOutput.volume
Added AVCaptureFileOutput
Added AVCaptureFileOutput.delegate
Added AVCaptureFileOutput.maxRecordedDuration
Added AVCaptureFileOutput.maxRecordedFileSize
Added AVCaptureFileOutput.minFreeDiskSpaceLimit
Added AVCaptureFileOutput.outputFileURL
Added -[AVCaptureFileOutput pauseRecording]
Added AVCaptureFileOutput.recordedDuration
Added AVCaptureFileOutput.recordedFileSize
Added AVCaptureFileOutput.recording
Added AVCaptureFileOutput.recordingPaused
Added -[AVCaptureFileOutput resumeRecording]
Added -[AVCaptureFileOutput startRecordingToOutputFileURL:recordingDelegate:]
Added -[AVCaptureFileOutput stopRecording]
Added AVCaptureFileOutputDelegate
Added -[AVCaptureFileOutputDelegate captureOutput:didOutputSampleBuffer:fromConnection:]
Added AVCaptureFileOutputRecordingDelegate
Added -[AVCaptureFileOutputRecordingDelegate captureOutput:didFinishRecordingToOutputFileAtURL:fromConnections:error:]
Added -[AVCaptureFileOutputRecordingDelegate captureOutput:didPauseRecordingToOutputFileAtURL:fromConnections:]
Added -[AVCaptureFileOutputRecordingDelegate captureOutput:didResumeRecordingToOutputFileAtURL:fromConnections:]
Added -[AVCaptureFileOutputRecordingDelegate captureOutput:didStartRecordingToOutputFileAtURL:fromConnections:]
Added -[AVCaptureFileOutputRecordingDelegate captureOutput:willFinishRecordingToOutputFileAtURL:fromConnections:error:]
Added AVCaptureMovieFileOutput
Added AVCaptureMovieFileOutput.metadata
Added AVCaptureMovieFileOutput.movieFragmentInterval
Added -[AVCaptureMovieFileOutput outputSettingsForConnection:]
Added -[AVCaptureMovieFileOutput setOutputSettings:forConnection:]
Added AVCaptureOutput
Added -[AVCaptureOutput connectionWithMediaType:]
Added AVCaptureOutput.connections
Added AVCaptureStillImageOutput
AddedAVCaptureStillImageOutput.availableImageDataCVPixelFormatTypes
Added AVCaptureStillImageOutput.availableImageDataCodecTypes
Added -[AVCaptureStillImageOutput captureStillImageAsynchronouslyFromConnection:completionHandler:]
Added +[AVCaptureStillImageOutput jpegStillImageNSDataRepresentation:]
Added AVCaptureStillImageOutput.outputSettings
Added AVCaptureVideoDataOutput
Added AVCaptureVideoDataOutput.alwaysDiscardsLateVideoFrames
Added AVCaptureVideoDataOutput.availableVideoCVPixelFormatTypes
Added AVCaptureVideoDataOutput.availableVideoCodecTypes
Added AVCaptureVideoDataOutput.sampleBufferCallbackQueue
Added AVCaptureVideoDataOutput.sampleBufferDelegate
Added -[AVCaptureVideoDataOutput setSampleBufferDelegate:queue:]
Added AVCaptureVideoDataOutput.videoSettings
Added AVCaptureVideoDataOutputSampleBufferDelegate
Added -[AVCaptureVideoDataOutputSampleBufferDelegate captureOutput:didDropSampleBuffer:fromConnection:]
Added -[AVCaptureVideoDataOutputSampleBufferDelegate captureOutput:didOutputSampleBuffer:fromConnection:]

AVCaptureSession.h

Added AVCaptureAudioChannel
Added AVCaptureAudioChannel.averagePowerLevel
Added AVCaptureAudioChannel.enabled
Added AVCaptureAudioChannel.peakHoldLevel
Added AVCaptureAudioChannel.volume
Added AVCaptureConnection
Added AVCaptureConnection.active
Added AVCaptureConnection.audioChannels
Added AVCaptureConnection.automaticallyAdjustsVideoMirroring
Added +[AVCaptureConnection connectionWithInputPort:videoPreviewLayer:]
Added +[AVCaptureConnection connectionWithInputPorts:output:]
Added AVCaptureConnection.enabled
Added -[AVCaptureConnection initWithInputPort:videoPreviewLayer:]
Added -[AVCaptureConnection initWithInputPorts:output:]
Added AVCaptureConnection.inputPorts
Added AVCaptureConnection.output
Added AVCaptureConnection.supportsVideoFieldMode
Added AVCaptureConnection.supportsVideoMinFrameDuration
Added AVCaptureConnection.supportsVideoMirroring
Added AVCaptureConnection.supportsVideoOrientation
Added AVCaptureConnection.videoFieldMode
Added AVCaptureConnection.videoMinFrameDuration
Added AVCaptureConnection.videoMirrored
Added AVCaptureConnection.videoOrientation
Added AVCaptureConnection.videoPreviewLayer
Added AVCaptureSession
Added -[AVCaptureSession addConnection:]
Added -[AVCaptureSession addInput:]
Added -[AVCaptureSession addInputWithNoConnections:]
Added -[AVCaptureSession addOutput:]
Added -[AVCaptureSession addOutputWithNoConnections:]
Added -[AVCaptureSession beginConfiguration]
Added -[AVCaptureSession canAddConnection:]
Added -[AVCaptureSession canAddInput:]
Added -[AVCaptureSession canAddOutput:]
Added -[AVCaptureSession canSetSessionPreset:]
Added -[AVCaptureSession commitConfiguration]
Added AVCaptureSession.inputs
Added AVCaptureSession.outputs
Added -[AVCaptureSession removeConnection:]
Added -[AVCaptureSession removeInput:]
Added -[AVCaptureSession removeOutput:]
Added AVCaptureSession.running
Added AVCaptureSession.sessionPreset
Added -[AVCaptureSession startRunning]
Added -[AVCaptureSession stopRunning]
Added AVCaptureSessionDidStartRunningNotification
Added AVCaptureSessionDidStopRunningNotification
Added AVCaptureSessionErrorKey
Added AVCaptureSessionPreset1280x720
Added AVCaptureSessionPreset320x240
Added AVCaptureSessionPreset352x288
Added AVCaptureSessionPreset640x480
Added AVCaptureSessionPreset960x540
Added AVCaptureSessionPresetHigh
Added AVCaptureSessionPresetLow
Added AVCaptureSessionPresetMedium
Added AVCaptureSessionPresetPhoto
Added AVCaptureSessionRuntimeErrorNotification
Added AVCaptureVideoOrientation
Added AVCaptureVideoOrientationLandscapeLeft
Added AVCaptureVideoOrientationLandscapeRight
Added AVCaptureVideoOrientationPortrait
Added AVCaptureVideoOrientationPortraitUpsideDown
Added AVVideoFieldMode
Added AVVideoFieldModeBoth
Added AVVideoFieldModeBottomOnly
Added AVVideoFieldModeDeinterlace
Added AVVideoFieldModeTopOnly

AVCaptureVideoPreviewLayer.h

Added AVCaptureVideoPreviewLayer
Added AVCaptureVideoPreviewLayer.connection
Added -[AVCaptureVideoPreviewLayer initWithSession:]
Added -[AVCaptureVideoPreviewLayer initWithSessionWithNoConnection:]
Added +[AVCaptureVideoPreviewLayer layerWithSession:]
Added +[AVCaptureVideoPreviewLayer layerWithSessionWithNoConnection:]
Added AVCaptureVideoPreviewLayer.session
Added -[AVCaptureVideoPreviewLayer setSessionWithNoConnection:]
Added AVCaptureVideoPreviewLayer.videoGravity

AVComposition.h

Added AVComposition
Added AVComposition.tracks
Added AVMutableComposition
Added -[AVMutableComposition addMutableTrackWithMediaType:preferredTrackID:]
Added +[AVMutableComposition composition]
Added -[AVMutableComposition insertEmptyTimeRange:]
Added -[AVMutableComposition insertTimeRange:ofAsset:atTime:error:]
Added -[AVMutableComposition mutableTrackCompatibleWithTrack:]
Added AVMutableComposition.naturalSize
Added -[AVMutableComposition removeTimeRange:]
Added -[AVMutableComposition removeTrack:]
Added -[AVMutableComposition scaleTimeRange:toDuration:]
Added AVMutableComposition.tracks
AddedAVMutableComposition(AVMutableCompositionCompositionLevelEditing)
Added AVMutableComposition(AVMutableCompositionTrackLevelEditing)

AVCompositionTrack.h

Added AVCompositionTrack
Added AVCompositionTrack.segments
Added AVMutableCompositionTrack
Added AVMutableCompositionTrack.extendedLanguageTag
Added -[AVMutableCompositionTrack insertEmptyTimeRange:]
Added -[AVMutableCompositionTrack insertTimeRange:ofTrack:atTime:error:]
Added AVMutableCompositionTrack.languageCode
Added AVMutableCompositionTrack.naturalTimeScale
Added AVMutableCompositionTrack.preferredTransform
Added AVMutableCompositionTrack.preferredVolume
Added -[AVMutableCompositionTrack removeTimeRange:]
Added -[AVMutableCompositionTrack scaleTimeRange:toDuration:]
Added AVMutableCompositionTrack.segments
Added -[AVMutableCompositionTrack validateTrackSegments:error:]

AVCompositionTrackSegment.h

Added AVCompositionTrackSegment
Added +[AVCompositionTrackSegment compositionTrackSegmentWithTimeRange:]
Added +[AVCompositionTrackSegment compositionTrackSegmentWithURL:trackID:sourceTimeRange:targetTimeRange:]
Added AVCompositionTrackSegment.empty
Added -[AVCompositionTrackSegment initWithTimeRange:]
Added -[AVCompositionTrackSegment initWithURL:trackID:sourceTimeRange:targetTimeRange:]
Added AVCompositionTrackSegment.sourceTrackID
Added AVCompositionTrackSegment.sourceURL

AVError.h

Added AVErrorApplicationIsNotAuthorized
Added AVErrorCompositionTrackSegmentsNotContiguous
Added AVErrorContentIsNotAuthorized
Added AVErrorContentIsProtected
Added AVErrorDecodeFailed
Added AVErrorDecoderNotFound
Added AVErrorDeviceAlreadyUsedByAnotherSession
Added AVErrorDeviceInUseByAnotherApplication
Added AVErrorDeviceIsNotAvailableInBackground (no architecture available)
Added AVErrorDeviceKey
Added AVErrorDeviceLockedForConfigurationByAnotherProcess
Added AVErrorDeviceNotConnected
Added AVErrorDeviceWasDisconnected
Added AVErrorDiscontinuityFlagsKey
Added AVErrorDiskFull
Added AVErrorEncoderNotFound
Added AVErrorExportFailed
Added AVErrorFileAlreadyExists
Added AVErrorFileFailedToParse
Added AVErrorFileFormatNotRecognized
Added AVErrorFileSizeKey
Added AVErrorInvalidCompositionTrackSegmentDuration
Added AVErrorInvalidCompositionTrackSegmentSourceDuration
Added AVErrorInvalidCompositionTrackSegmentSourceStartTime
Added AVErrorInvalidSourceMedia
Added AVErrorMaximumDurationReached
Added AVErrorMaximumFileSizeReached
Added AVErrorMaximumNumberOfSamplesForFileFormatReached
Added AVErrorMaximumStillImageCaptureRequestsExceeded
Added AVErrorMediaChanged
Added AVErrorMediaDiscontinuity
Added AVErrorMediaServicesWereReset (no architecture available)
Added AVErrorMediaSubTypeKey
Added AVErrorMediaTypeKey
Added AVErrorNoDataCaptured
Added AVErrorNoImageAtTime
Added AVErrorOperationNotSupportedForAsset
Added AVErrorOutOfMemory
Added AVErrorPIDKey
Added AVErrorRecordingSuccessfullyFinishedKey
Added AVErrorSessionConfigurationChanged
Added AVErrorSessionNotRunning
Added AVErrorSessionWasInterrupted (no architecture available)
Added AVErrorTimeKey
Added AVErrorUnknown
Added AVFoundationErrorDomain

AVMediaFormat.h

Added AVFileTypeAIFC
Added AVFileTypeAIFF
Added AVFileTypeAMR
Added AVFileTypeAppleM4A
Added AVFileTypeAppleM4V
Added AVFileTypeCoreAudioFormat
Added AVFileTypeMPEG4
Added AVFileTypeQuickTimeMovie
Added AVFileTypeWAVE
Added AVMediaCharacteristicAudible
Added AVMediaCharacteristicFrameBased
Added AVMediaCharacteristicLegible
Added AVMediaCharacteristicVisual
Added AVMediaTypeAudio
Added AVMediaTypeClosedCaption
Added AVMediaTypeMuxed
Added AVMediaTypeSubtitle
Added AVMediaTypeText
Added AVMediaTypeTimecode
Added AVMediaTypeTimedMetadata
Added AVMediaTypeVideo

后记

未完，待续~~~