版本記錄
| 版本號 | 時間 |
|---|---|
| V1.0 | 2017.09.01 |
前言
AVFoundation框架是ios中很重要的框架妒牙，所有與視頻音頻相關的軟硬件控制都在這個框架里面，接下來這幾篇就主要對這個框架進行介紹和講解。感興趣的可以看我上幾篇尼斧。
1. AVFoundation框架解析（一）—— 基本概覽
2. AVFoundation框架解析（二）—— 實現視頻預覽錄制保存到相冊
3. AVFoundation框架解析（三）—— 幾個關鍵問題之關于框架的深度概括
4. AVFoundation框架解析（四）—— 幾個關鍵問題之AVFoundation探索（一）
5. AVFoundation框架解析（五）—— 幾個關鍵問題之AVFoundation探索（二）
6. AVFoundation框架解析（六）—— 視頻音頻的合成（一）
7. AVFoundation框架解析（七）—— 視頻組合和音頻混合調試
8. AVFoundation框架解析（八）—— 優(yōu)化用戶的播放體驗
9. AVFoundation框架解析（九）—— AVFoundation的變化（一）
10. AVFoundation框架解析（十）—— AVFoundation的變化（二）
11. AVFoundation框架解析（十一）—— AVFoundation的變化（三）
AVFoundation的變化
我寫這篇文章的時候是2017-09-01荚恶，文檔中列出了AVFoundation框架的更新和改變撩穿，下面我就給大家列出來一下。
AVPlayerItemTrack.h
Added AVPlayerItemTrack
Added AVPlayerItemTrack.assetTrack
Added AVPlayerItemTrack.enabled
AVPlayerLayer.h
Added AVPlayerLayer
Added AVPlayerLayer.player
Added +[AVPlayerLayer playerLayerWithPlayer:]
Added AVPlayerLayer.readyForDisplay
Added AVPlayerLayer.videoGravity
AVSynchronizedLayer.h
Added AVSynchronizedLayer
Added AVSynchronizedLayer.playerItem
Added +[AVSynchronizedLayer synchronizedLayerWithPlayerItem:]
AVTime.h
Added -[NSCoder decodeCMTimeForKey:]
Added -[NSCoder decodeCMTimeMappingForKey:]
Added -[NSCoder decodeCMTimeRangeForKey:]
Added -[NSCoder encodeCMTime:forKey:]
Added -[NSCoder encodeCMTimeMapping:forKey:]
Added -[NSCoder encodeCMTimeRange:forKey:]
Added -[NSValue CMTimeMappingValue]
Added -[NSValue CMTimeRangeValue]
Added -[NSValue CMTimeValue]
Added +[NSValue valueWithCMTime:]
Added +[NSValue valueWithCMTimeMapping:]
Added +[NSValue valueWithCMTimeRange:]
Added NSCoder(AVTimeCoding)
Added NSValue(NSValueAVFoundationExtensions)
AVTimedMetadataGroup.h
Added AVMutableTimedMetadataGroup
Added AVMutableTimedMetadataGroup.items
Added AVMutableTimedMetadataGroup.timeRange
Added AVTimedMetadataGroup
Added -[AVTimedMetadataGroup initWithItems:timeRange:]
Added AVTimedMetadataGroup.items
Added AVTimedMetadataGroup.timeRange
AVUtilities.h
Added AVMakeRectWithAspectRatioInsideRect()
AVVideoComposition.h
Added -[AVAsset unusedTrackID]
Added AVMutableVideoComposition
Added AVMutableVideoComposition.animationTool
Added AVMutableVideoComposition.frameDuration
Added AVMutableVideoComposition.instructions
Added AVMutableVideoComposition.renderScale (no architecture available)
Added AVMutableVideoComposition.renderSize
Added +[AVMutableVideoComposition videoComposition]
Added AVMutableVideoCompositionInstruction
Added AVMutableVideoCompositionInstruction.backgroundColor
Added AVMutableVideoCompositionInstruction.enablePostProcessing
Added AVMutableVideoCompositionInstruction.layerInstructions
Added AVMutableVideoCompositionInstruction.timeRange
Added +[AVMutableVideoCompositionInstruction videoCompositionInstruction]
Added AVMutableVideoCompositionLayerInstruction
Added -[AVMutableVideoCompositionLayerInstruction setOpacity:atTime:]
Added -[AVMutableVideoCompositionLayerInstruction setOpacityRampFromStartOpacity:toEndOpacity:timeRange:]
Added -[AVMutableVideoCompositionLayerInstruction setTransform:atTime:]
Added -[AVMutableVideoCompositionLayerInstruction setTransformRampFromStartTransform:toEndTransform:timeRange:]
Added AVMutableVideoCompositionLayerInstruction.trackID
Added +[AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstruction]
Added +[AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack:]
Added AVVideoComposition
Added AVVideoComposition.animationTool
Added AVVideoComposition.frameDuration
Added AVVideoComposition.instructions
Added AVVideoComposition.renderScale (no architecture available)
Added AVVideoComposition.renderSize
Added AVVideoCompositionCoreAnimationTool
Added +[AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithAdditionalLayer:asTrackID:]
Added +[AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:inLayer:]
Added AVVideoCompositionInstruction
Added AVVideoCompositionInstruction.backgroundColor
Added AVVideoCompositionInstruction.enablePostProcessing
Added AVVideoCompositionInstruction.layerInstructions
Added AVVideoCompositionInstruction.timeRange
Added AVVideoCompositionLayerInstruction
Added -[AVVideoCompositionLayerInstruction getOpacityRampForTime:startOpacity:endOpacity:timeRange:]
Added -[AVVideoCompositionLayerInstruction getTransformRampForTime:startTransform:endTransform:timeRange:]
Added AVVideoCompositionLayerInstruction.trackID
Added AVAsset(AVAssetVideoCompositionUtility)
AVVideoSettings.h
Added AVVideoAverageBitRateKey
Added AVVideoCleanApertureHeightKey
Added AVVideoCleanApertureHorizontalOffsetKey
Added AVVideoCleanApertureKey
Added AVVideoCleanApertureVerticalOffsetKey
Added AVVideoCleanApertureWidthKey
Added AVVideoCodecAppleProRes422
Added AVVideoCodecAppleProRes4444
Added AVVideoCodecH264
Added AVVideoCodecJPEG
Added AVVideoCodecKey
Added AVVideoColorPrimariesKey
Added AVVideoColorPrimaries_EBU_3213
Added AVVideoColorPrimaries_ITU_R_709_2
Added AVVideoColorPrimaries_SMPTE_C
Added AVVideoColorPropertiesKey
Added AVVideoCompressionPropertiesKey
Added AVVideoHeightKey
Added AVVideoMaxKeyFrameIntervalKey
Added AVVideoPixelAspectRatioHorizontalSpacingKey
Added AVVideoPixelAspectRatioKey
Added AVVideoPixelAspectRatioVerticalSpacingKey
Added AVVideoQualityKey
Added AVVideoScalingModeFit
Added AVVideoScalingModeKey
Added AVVideoScalingModeResize
Added AVVideoScalingModeResizeAspect
Added AVVideoScalingModeResizeAspectFill
Added AVVideoTransferFunctionKey
Added AVVideoTransferFunction_ITU_R_709_2
Added AVVideoTransferFunction_SMPTE_240M_1995
Added AVVideoWidthKey
Added AVVideoYCbCrMatrixKey
Added AVVideoYCbCrMatrix_ITU_R_601_4
Added AVVideoYCbCrMatrix_ITU_R_709_2
Added AVVideoYCbCrMatrix_SMPTE_240M_1995
后記
未完谒撼，待續(xù)~~~~
