V2TXLivePlayerObserver

Overview
Callbacks of Tencent Cloud’s live stream player.
Features
You can use V2TXLivePlayerObserver to receive callbacks of V2TXLivePlayer, including player status, playback volume, first audio/video frame, statistics, warning and error messages, etc.
Basic Callback APIs
onError
Callback for error
- (void)onError:(id<V2TXLivePlayer>)player
            code:(V2TXLiveCode)code
         message:(NSString *)msg
       extraInfo:(NSDictionary *)extraInfo
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
code
V2TXLiveCode
Error code
msg
NSString *
Error message
extraInfo
NSDictionary *
Extra information
onWarning
Callback for warning
- (void)onWarning:(id<V2TXLivePlayer>)player
              code:(V2TXLiveCode)code
           message:(NSString *)msg
         extraInfo:(NSDictionary *)extraInfo
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
code
V2TXLiveCode
Warning code
msg
NSString *
Warning message
extraInfo
NSDictionary *
Extra information
onConnected
Callback for successfully connecting to the server
- (void)onConnected:(id<V2TXLivePlayer>)player 
          extraInfo:(NSDictionary *)extraInfo
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
extraInfo
NSDictionary *
Extra information
Video Callback APIs
onVideoPlaying
Callback for video playback
- (void)onVideoPlaying:(id<V2TXLivePlayer>)player
             firstPlay:(BOOL)firstPlay 
             extraInfo:(NSDictionary *)extraInfo
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
firstPlay
BOOL
Whether it is the first playback
extraInfo
NSDictionary *
Extra information
onVideoLoading
Callback for loading video
- (void)onVideoLoading:(id<V2TXLivePlayer>)player
             extraInfo:(NSDictionary *)extraInfo;
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
extraInfo
NSDictionary *
Extra information
onVideoResolutionChanged
Callback for change of player resolution
- (void)onVideoResolutionChanged:(id<V2TXLivePlayer>)player 
                           width:(NSInteger)width 
                          height:(NSInteger)height;
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
width
NSInteger
Video width
height
NSInteger
Video height
onSnapshotComplete
Callback for a screenshot taken
- (void)onSnapshotComplete:(id<V2TXLivePlayer>)player image:(TXImage *)image
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
image
TXImage *
The video image captured
onRenderVideoFrame
Callback for custom video rendering
Note: 
You will receive this callback after calling [V2TXLivePlayer enableCustomRendering:pixelFormat:bufferType:] to enable custom video rendering.
- (void)onRenderVideoFrame:(id<V2TXLivePlayer>)player
                     frame:(V2TXLiveVideoFrame *)videoFrame
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
videoFrame
V2TXLiveVideoFrame *
Video frame
Audio Callback APIs
onAudioPlaying
Callback for audio playback
- (void)onAudioPlaying:(id<V2TXLivePlayer>)player 
             firstPlay:(BOOL)firstPlay 
             extraInfo:(NSDictionary *)extraInfo;
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
firstPlay
BOOL
Whether it is the first playback
extraInfo
NSDictionary *
Extra information
onAudioLoading
Callback for loading audio
- (void)onAudioLoading:(id<V2TXLivePlayer>)player 
             extraInfo:(NSDictionary *)extraInfo;
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
extraInfo
NSDictionary *
Extra information
onPlayoutVolumeUpdate
Callback of the player’s volume
- (void)onPlayoutVolumeUpdate:(id<V2TXLivePlayer>)player volume:(NSInteger)volume
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
volume
NSInteger
Volume. Value range: 0-100
Statistics Callback API
onStatisticsUpdate
Callback of the player’s statistics
- (void)onStatisticsUpdate:(id<V2TXLivePlayer>)player
                statistics:(V2TXLivePlayerStatistics *)statistics
Parameters
Parameter
Type
Description
player
V2TXLivePlayer
The player object sending the callback
statistics
V2TXLivePlayerStatistics
Player statistics

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Parameter	Type	Description
player	V2TXLivePlayer	The player object sending the callback
code	V2TXLiveCode	Error code
msg	NSString *	Error message
extraInfo	NSDictionary *	Extra information

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Basic Callback APIs

onError

onWarning

onConnected

Video Callback APIs

onVideoPlaying

onVideoLoading

onVideoResolutionChanged

onSnapshotComplete

onRenderVideoFrame

Audio Callback APIs

onAudioPlaying

onAudioLoading

onPlayoutVolumeUpdate

Statistics Callback API

onStatisticsUpdate