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V2TXLivePusherObserver

Last updated: 2022-10-13 11:40:06

    Overview

    Callback notifications for live stream publishing

    Features

    You can use V2TXLivePusherObserver to receive notifications about V2TXLivePusher, including publisher connection status, first audio/video frame, statistics, and warning and error messages.

    Basic Callback APIs

    onError

    Callback for error. This callback is triggered when the publisher encounters an error.

    - (void)onError:(V2TXLiveCode)code message:(NSString *)msg extraInfo:(NSDictionary *)extraInfo

    Parameters

    Parameter Type Description
    code V2TXLiveCode Error code
    msg NSString * Error message
    extraInfo NSDictionary * Extra information

    onWarning

    Callback for warning.

    - (void)onWarning:(V2TXLiveCode)code message:(NSString *)msg extraInfo:(NSDictionary *)extraInfo

    Parameters

    Parameter Type Description
    code V2TXLiveCode Warning code
    msg NSString * Warning message
    extraInfo NSDictionary * Extra information

    Video Callback APIs

    onPushStatusUpdate

    Callback of the publisher’s connection status.

    - (void)onPushStatusUpdate:(V2TXLivePushStatus)status
                  message:(NSString *)msg
                extraInfo:(NSDictionary *)extraInfo

    Parameters

    Parameter Type Description
    status V2TXLivePushStatus Status code
    msg NSString * Status message
    extraInfo NSDictionary * Extra information

    V2TXLivePushStatus enumerated values

    Value Description
    V2TXLivePushStatusDisconnected Disconnected from the server
    V2TXLivePushStatusConnecting Connecting to the server
    V2TXLivePushStatusConnectSuccess Connected to the server
    V2TXLivePushStatusReconnecting Reconnecting to the server

    onSnapshotComplete

    Callback for a screenshot taken.

    - (void)onSnapshotComplete:(TXImage *)image

    Parameters

    Parameter Type Description
    image TXImage * The video image captured

    onProcessVideoFrame

    Callback for custom video processing.

    Note：

    You will receive this callback after you call V2TXLivePusher#enableCustomVideoProcess:(BOOL)enable pixelFormat:(V2TXLivePixelFormat)pixelFormat bufferType:(V2TXLiveBufferType)bufferType to enable custom video processing.

    - (void)onProcessVideoFrame:(V2TXLiveVideoFrame * _Nonnull)srcFrame dstFrame:(V2TXLiveVideoFrame * _Nonnull)dstFrame

    Parameters

    Parameter Type Description
    srcFrame V2TXLiveVideoFrame * Images before processing
    dstFrame V2TXLiveVideoFrame * Images after processing

    onGLContextDestroyed

    Callback for a GL context for custom video processing being destroyed.

    - (void)onGLContextDestroyed

    onCaptureFirstVideoFrame

    Callback for capturing the first video frame.

    - (void)onCaptureFirstVideoFrame

    Audio Callback APIs

    onCaptureFirstAudioFrame

    Callback for capturing the first audio frame.

    - (void)onCaptureFirstAudioFrame

    onMicrophoneVolumeUpdate

    Callback of mic capturing volume.

    - (void)onMicrophoneVolumeUpdate:(NSInteger)volume

    Statistics Callback API

    onStatisticsUpdate

    Callback of publisher statistics.

    - (void)onStatisticsUpdate:(V2TXLivePusherStatistics *)statistics

    Parameters

    Parameter Type Description
    statistics V2TXLivePusherStatistics * Publisher statistics

    MixTranscoding Callback API

    onSetMixTranscodingConfig

    Callback for setting On-Cloud MixTranscoding parameters.

    Note：

    You will receive this callback after you call V2TXLivePusher#setMixTranscodingConfig:(V2TXLiveTranscodingConfig *)config to set On-Cloud MixTranscoding parameters.

    - (void)onSetMixTranscodingConfig:(V2TXLiveCode)code message:(NSString *)msg
    Parameter Type Description
    code V2TXLiveCode 0: successful; other values: failed
    msg NSString * Error message
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