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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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