#import <NvsStreamingContext.h>

类 <NvsStreamingContextDelegate> 继承关系图:

构造函数
(void)	- didCaptureDeviceCapsReady:
	采集设备准备完成更多...

(void)	- didCaptureDevicePreviewResolutionReady:
	采集设备预览解析度准备完成更多...

(void)	- didCaptureDevicePreviewStarted:
	采集设备预览开始更多...

(void)	- didCaptureDeviceError:errorCode:
	采集设备错误更多...

(void)	- didCaptureDeviceStopped:
	采集设备停止更多...

(void)	- didCaptureDeviceAutoFocusComplete:succeeded:
	采集设备自动对焦完成更多...

(void)	- didCaptureRecordingStarted:
	采集录制开始更多...

(void)	- didCaptureRecordingFirstVideoFrameReached:timeStamp:
	录制第一帧视频呈现更多...

(void)	- didCaptureRecordingDurationUpdated:duration:
	录制时长通知更多...

(void)	- didCaptureRecordingFinished:
	采集录制完成更多...

(void)	- didCaptureRecordingError:
	采集录制失败更多...

(void)	- didPlaybackPreloadingCompletion:
	播放预先加载完成更多...

(void)	- didPlaybackTimelinePosition:position:
	时间线播放的当前位置更多...

(void)	- didPlaybackDelayed:delayTime:isVideo:
	时间线播放视频延迟更多...

(void)	- didPlaybackStopped:
	播放停止更多...

(void)	- didPlaybackEOF:
	播放到结尾更多...

(void)	- didCompileProgress:progress:
	生成视频文件进度更多...

(void)	- didCompileFloatProgress:progress:
	生成视频文件进度更多...

(void)	- didCompileFinished:
	生成视频文件完成更多...

(void)	- didCompileCompleted:isCanceled:
	生成视频文件完成更多...

(void)	- didCompileCompleted:isHardwareEncoding:errorType:errorString:flags:
	时间线生成文件完成更多...

(void)	- didCompileFailed:
	生成视频文件失败更多...

(void)	- didStreamingEngineStateChanged:
	引擎状态改变更多...

(void)	- didFirstVideoFramePresented:
	第一视频帧呈现更多...

(void)	- didTimestampOutOfRange:
	时间线越界（注：非必要情况请勿使用此回调接口）更多...

(void)	- didSeekingTimelinePosition:position:
	时间线搜索的当前位置更多...

(void)	- captureVideoFrameGrabbedArrived:
	获取采集预览图像更多...

(void)	- onAudioSampleArrived:
	获取采集的音频数据回调接口更多...

(void)	- capturePictureArrived:
	获取采集预览图像更多...

(void)	- onPlaybackException:exceptionType:exceptionString:
	时间线播放异常信息更多...

(void)	- onHardwareError:stringInfo:
	硬件异常信息更多...

(void)	- didVUMeterValue:leftValue:rightValue:timestamp:
	获取时间线音频输出的DB值回调接口更多...

(void)	- onAudioSampleArrived:audioSample:
	获取时间线音频输出的数据回调接口更多...

函数文档

◆ capturePictureArrived:

- (void) capturePictureArrived: (NvsVideoFrameInfo *) sampleBufferInfo

optional

获取采集预览图像

请特别注意:这个函数被调用是在一个单独的线程,而不是在UI线程.使用请考虑线程安全的问题!!!

参数

sampleBufferInfo 获取到的图像数据

自从: 1.4.0

◆ captureVideoFrameGrabbedArrived:

- (void) captureVideoFrameGrabbedArrived: (NvsVideoFrameInfo *) sampleBufferInfo

optional

获取采集预览图像

请特别注意:这个函数被调用是在一个单独的线程,而不是在UI线程.使用请考虑线程安全的问题!!!

参数

sampleBufferInfo 获取到的图像数据

自从: 1.4.0

◆ didCaptureDeviceAutoFocusComplete:succeeded:

- (void) didCaptureDeviceAutoFocusComplete:	(unsigned int)	captureDeviceIndex
succeeded:	(BOOL)	succeeded

optional

采集设备自动对焦完成

参数

captureDeviceIndex	设备索引
succeeded	对焦是否完成

◆ didCaptureDeviceCapsReady:

- (void) didCaptureDeviceCapsReady: (unsigned int) captureDeviceIndex

optional

采集设备准备完成

参数

captureDeviceIndex 设备索引

◆ didCaptureDeviceError:errorCode:

- (void) didCaptureDeviceError:	(unsigned int)	captureDeviceIndex
errorCode:	(int32_t)	errorCode

optional

采集设备错误

参数

captureDeviceIndex	设备索引
errorCode	错误码

◆ didCaptureDevicePreviewResolutionReady:

- (void) didCaptureDevicePreviewResolutionReady: (unsigned int) captureDeviceIndex

optional

采集设备预览解析度准备完成

参数

captureDeviceIndex 设备索引

◆ didCaptureDevicePreviewStarted:

- (void) didCaptureDevicePreviewStarted: (unsigned int) captureDeviceIndex

optional

采集设备预览开始

参数

captureDeviceIndex 设备索引

◆ didCaptureDeviceStopped:

- (void) didCaptureDeviceStopped: (unsigned int) captureDeviceIndex

optional

采集设备停止

参数

captureDeviceIndex 设备索引

◆ didCaptureRecordingDurationUpdated:duration:

- (void) didCaptureRecordingDurationUpdated:	(int)	captureDeviceIndex
duration:	(int64_t)	duration

optional

录制时长通知

参数

captureDeviceIndex	设备索引
duration	已经录制的时长，单位是微秒

自从: 1.17.0

◆ didCaptureRecordingError:

- (void) didCaptureRecordingError: (unsigned int) captureDeviceIndex

optional

采集录制失败

参数

captureDeviceIndex 设备索引

参见: - didCaptureRecordingStarted:; - didCaptureRecordingFinished:

◆ didCaptureRecordingFinished:

- (void) didCaptureRecordingFinished: (unsigned int) captureDeviceIndex

optional

采集录制完成

参数

captureDeviceIndex 设备索引

参见: - didCaptureRecordingStarted:; - didCaptureRecordingError:

◆ didCaptureRecordingFirstVideoFrameReached:timeStamp:

- (void) didCaptureRecordingFirstVideoFrameReached:	(unsigned int)	captureDeviceIndex
timeStamp:	(int64_t)	timestamp

optional

录制第一帧视频呈现

参数

captureDeviceIndex	设备索引
timeStamp	录制第一帧视频帧的时间戳

参见: - didCaptureRecordingFinished:; - didCaptureRecordingError:

自从: 2.14.0

◆ didCaptureRecordingStarted:

- (void) didCaptureRecordingStarted: (unsigned int) captureDeviceIndex

optional

采集录制开始

参数

captureDeviceIndex 设备索引

参见: - didCaptureRecordingFinished:; - didCaptureRecordingError:

自从: 1.16.0

◆ didCompileCompleted:isCanceled:

- (void) didCompileCompleted:	(NvsTimeline *)	timeline
isCanceled:	(BOOL)	isCanceled

optional

生成视频文件完成

参数

timeline	时间线
isCanceled	中途取消导致生成完成。注：任何对引擎操作引起的停止生成均视为中途取消

自从: 1.6.0

参见: - didCompileFinished:

◆ didCompileCompleted:isHardwareEncoding:errorType:errorString:flags:

- (void) didCompileCompleted:	(NvsTimeline *)	timeline
isHardwareEncoding:	(BOOL)	isHardwareEncoding
errorType:	(int)	errorType
errorString:	(NSString *)	errorString
flags:	(int)	flags

optional

时间线生成文件完成

参数

timeline	时间线
isHardwareEncoder	是否是硬件编码
errorType	错误类型,请参见生成错误类型
stringInfo	辅助的字符串信息
flags	标志量

自从: 2.22.0

◆ didCompileFailed:

- (void) didCompileFailed: (NvsTimeline *) timeline

optional

生成视频文件失败

参数

timeline 时间线

◆ didCompileFinished:

- (void) didCompileFinished: (NvsTimeline *) timeline

optional

生成视频文件完成

参数

timeline 时间线

参见: - didCompileFailed:

◆ didCompileFloatProgress:progress:

- (void) didCompileFloatProgress:	(NvsTimeline *)	timeline
progress:	(float)	progress

optional

生成视频文件进度

参数

timeline	时间线
progress	浮点进度值

◆ didCompileProgress:progress:

- (void) didCompileProgress:	(NvsTimeline *)	timeline
progress:	(int)	progress

optional

生成视频文件进度

参数

timeline	时间线
progress	进度值

◆ didFirstVideoFramePresented:

- (void) didFirstVideoFramePresented: (NvsTimeline *) timeline

optional

第一视频帧呈现

参数

timeline 时间线

◆ didPlaybackDelayed:delayTime:isVideo:

- (void) didPlaybackDelayed:	(NvsTimeline *)	timeline
delayTime:	(int64_t)	time
isVideo:	(bool)	flag

optional

时间线播放视频延迟

参数

timeline	时间线
time	延迟时间
flag	是否是视频（true是视频，false是音频）

自从: 2.5.0

◆ didPlaybackEOF:

- (void) didPlaybackEOF: (NvsTimeline *) timeline

optional

播放到结尾

参数

timeline 时间线

◆ didPlaybackPreloadingCompletion:

- (void) didPlaybackPreloadingCompletion: (NvsTimeline *) timeline

optional

播放预先加载完成

参数

timeline 时间线

◆ didPlaybackStopped:

- (void) didPlaybackStopped: (NvsTimeline *) timeline

optional

播放停止

参数

timeline 时间线

◆ didPlaybackTimelinePosition:position:

- (void) didPlaybackTimelinePosition:	(NvsTimeline *)	timeline
position:	(int64_t)	position

optional

时间线播放的当前位置

参数

timeline	时间线
position	当前位置

自从: 1.6.0

◆ didSeekingTimelinePosition:position:

- (void) didSeekingTimelinePosition:	(NvsTimeline *)	timeline
position:	(int64_t)	position

optional

时间线搜索的当前位置

参数

timeline	时间线
position	当前位置

自从: 2.5.0

◆ didStreamingEngineStateChanged:

- (void) didStreamingEngineStateChanged: (NvsStreamingEngineState) state

optional

引擎状态改变

参数

state 引擎状态

◆ didTimestampOutOfRange:

- (void) didTimestampOutOfRange: (NvsTimeline *) timeline

optional

时间线越界（注：非必要情况请勿使用此回调接口）

参数

timeline 时间线

自从: 1.2.0

◆ didVUMeterValue:leftValue:rightValue:timestamp:

- (void) didVUMeterValue:	(NvsTimeline *)	timeline
leftValue:	(float)	left
rightValue:	(float)	right
timestamp:	(int64_t)	time

optional

获取时间线音频输出的DB值回调接口

参数

timeline	时间线
leftVUValue	左声道DB值
rightVUValue	右声道DB值

◆ onAudioSampleArrived:

- (void) onAudioSampleArrived: (NvsAudioSampleBuffers *) audioSample

optional

获取采集的音频数据回调接口

参数

audioSample 音频数据

自从: 3.0.3

◆ onAudioSampleArrived:audioSample:

- (void) onAudioSampleArrived:	(NvsTimeline *)	timeline
audioSample:	(NvsAudioSampleBuffers *)	audioSample

optional

获取时间线音频输出的数据回调接口

参数

timeline	时间线
audioSample	音频数据

◆ onHardwareError:stringInfo:

- (void) onHardwareError:	(NvsStreamingEngineHarwareErrorType)	errorType
stringInfo:	(NSString *)	stringInfo

optional

硬件异常信息

参数

errorType	硬件错误类型,请参见硬件错误类型
stringInfo	辅助的字符串信息

自从: 1.16.0

◆ onPlaybackException:exceptionType:exceptionString:

- (void) onPlaybackException:	(NvsTimeline *)	timeline
exceptionType:	(NvsStreamingEnginePlaybackExceptionType)	exceptionType
exceptionString:	(NSString *)	exceptionString

optional

时间线播放异常信息

参数

timeline	时间线
exceptionType	异常类型。请参见引擎播放异常类型
exceptionString	异常信息描述

自从: 3.0.0

该协议的文档由以下文件生成:

include/sdkcore/ios/NvsStreamingContext.h

构造函数

函数文档

◆ capturePictureArrived:

◆ captureVideoFrameGrabbedArrived:

◆ didCaptureDeviceAutoFocusComplete:succeeded:

◆ didCaptureDeviceCapsReady:

◆ didCaptureDeviceError:errorCode:

◆ didCaptureDevicePreviewResolutionReady:

◆ didCaptureDevicePreviewStarted:

◆ didCaptureDeviceStopped:

◆ didCaptureRecordingDurationUpdated:duration:

◆ didCaptureRecordingError:

◆ didCaptureRecordingFinished:

◆ didCaptureRecordingFirstVideoFrameReached:timeStamp:

◆ didCaptureRecordingStarted:

◆ didCompileCompleted:isCanceled:

◆ didCompileCompleted:isHardwareEncoding:errorType:errorString:flags:

◆ didCompileFailed:

◆ didCompileFinished:

◆ didCompileFloatProgress:progress:

◆ didCompileProgress:progress:

◆ didFirstVideoFramePresented:

◆ didPlaybackDelayed:delayTime:isVideo:

◆ didPlaybackEOF:

◆ didPlaybackPreloadingCompletion:

◆ didPlaybackStopped:

◆ didPlaybackTimelinePosition:position:

◆ didSeekingTimelinePosition:position:

◆ didStreamingEngineStateChanged:

◆ didTimestampOutOfRange:

◆ didVUMeterValue:leftValue:rightValue:timestamp:

◆ onAudioSampleArrived:

◆ onAudioSampleArrived:audioSample:

◆ onHardwareError:stringInfo:

◆ onPlaybackException:exceptionType:exceptionString: