Intelligent Media Services:Data structures

Parameter

Type

Description

mUserId

String

The user ID. Valid values:

• 0: The local user.

• 1: The remote mixed stream.

• Other values: The ID of a remote user.

mVolume

int

The volume in the current callback.

mSpeechstate

int

The speaking status of the user. Valid values:

• 0: The user is not speaking.

• 1: The user is speaking.

Parameter

Type

Description

dataFrameY

long

Pointer to the Y component.

dataFrameU

long

Pointer to the U component.

dataFrameV

long

Pointer to the V component.

data

byte[]

Pointer to the YUV data.

format

AliRtcVideoFormat

The format of the video frame.

width

int

The width of the video frame.

height

int

The height of the video frame.

strideY

int

The row stride of the Y buffer in the YUV data.

strideU

int

The row stride of the U buffer in the YUV data.

strideV

int

The row stride of the V buffer in the YUV data.

rotate

int

The rotation angle of the video frame. Valid values: 0, 90, 180, and 270.

extraData

long

An extra field. Ignored if customization is not required.

textureid

long

The OpenGL texture ID, used to bind the texture.

matrix

float[]

A 4x4 transformation matrix that controls the rotation, scaling, or projection of the texture.

glContex

long

A pointer to the OpenGL context, used to manage the GPU rendering state.

Enumeration name

Description

AliRTCSdkVideoSourceCameraType

Camera stream.

AliRTCSdkVideoSourceScreenShareType

Screen sharing stream.

Enumeration name

Description

AliRTCSdkCommunication

Communication mode.

AliRTCSdkInteractiveLive

Interactive mode.

AliRTCSdkInteractiveWithLowLatencyLive

Low-latency interactive live streaming mode.

Enumeration name

Description

AliRTCSdkInteractive

Streamer role.

AliRTCSdkLive

Viewer role.

Enumeration name

Description

AliRTCSdkStreameTypeCapture

Camera stream.

AliRTCSdkStreameTypeScreen

Screen stream.

Parameter name

Type

Description

format

AliRtcVideoFormat

The video data type.

width

int

The width of the frame.

height

int

The height of the frame.

rotation

int

The rotation angle of the video frame. Valid values: 0, 90, 180, and 270.

videoFrameLength

int

The length of the frame.

lineSize

int[]

The storage of the video frame. For more information, see the following table.

frame

byte[]

The YUV byte data of the video.

cropLeft

int

The number of pixels to crop from the left.

cropTop

int

The number of pixels to crop from the top.

cropRight

int

The number of pixels to crop from the right.

cropBottom

int

The number of pixels to crop from the bottom.

timeStamp

long

The timestamp of the frame in milliseconds.

filePath

byte[]

The path of the video file. Used when format is set to AliRtcVideoFormatFile.

textureId

int

The texture ID of the frame.

transformMatrix

float[]

Additional transformation for the texture frame.

eglContext14

EGLContext

The thread-related context variable for OpenGL.

Video frame format

Video frame storage

YUV

• lineSize[0] = width; // Y

• lineSize[1] = width/2; // U

• lineSize[2] = width/2; // V

• lineSize[3] = 0;

RGBA

• lineSize[0] = width; // R

• lineSize[1] = width; // G

• lineSize[2] = width; // B

• lineSize[3] = width; // A

Parameter

Type

Description

availableSendKbitrate

long

The available bandwidth in Kbps.

sentKbitrate

long

The sending bitrate.

rcvdKbitrate

long

The receiving bitrate.

sentBytes

long

The number of bytes sent.

rcvdBytes

long

The number of bytes received.

systemCpuUsage

float

The system CPU usage.

cpuUsage

float

The CPU usage of the RTC process.

videoRcvdKbitrate

long

The video receiving bitrate.

videoSentKbitrate

long

The video sending bitrate.

callDuration

long

The call duration in seconds.

sentLossRate

long

The packet loss rate from the client to the server.

sentLossPkts

long

The number of lost packets from the client to the server.

sentExpectedPkts

long

The total number of packets from the client to the server.

rcvdLossRate

long

The downstream packet loss rate from the client to the server.

rcvdLossPkts

long

The number of downstream lost packets from the client to the server.

rcvdExpectedPkts

long

The total number of downstream packets from the client to the server.

lastmileDelay

long

The latency in milliseconds.

Parameter

Type

Description

userId

String

The local user ID.

track

AliRtcVideoTrack

The stream type.

captureWidth

int

The capture width.

captureHeight

int

The capture height.

encodeWidth

int

The encoding width.

encodeHeight

int

The encoding height.

sentBitrate

int

The publishing bitrate.

captureFps

int

The capture frame rate.

sentFps

int

The publishing frame rate.

encodeFps

int

The encoding frame rate.

targetEncodeBitrate

int

The target encoding bitrate.

actualEncodeBitrate

int

The actual encoding bitrate.

Parameter

Type

Description

userId

String

The remote user ID.

track

AliRtcVideoTrack

The video stream type.

width

int

The width of the video frame.

height

int

The height of the video frame.

decodeFps

int

The output frame rate of the encoder.

renderFps

int

The output frame rate of the renderer.

frozenTimes

int

The number of stutters.

videoTotalFrozenTime

int

The total stuttering duration of video playback in milliseconds.

videoTotalFrozenRate

int

The total stuttering rate of video playback in percentage.

Parameter

Type

Description

track

AliRtcAudioTrack

The audio stream type.

sentBitrate

int

The sending bitrate.

sentSamplerate

int

The sending sample rate.

numChannel

int

The number of sound channels.

sendLoss

int

The sending packet loss rate.

Parameter

Type

Description

userId

String

The user ID.

audioTrack

AliRtcAudioTrack

The audio stream type.

sampleRate

int

The sample rate.

channels

int

The number of sound channels.

quality

int

The audio quality.

audioLossRate

int

The audio packet loss rate.

rcvdBitrate

int

The receiving bitrate.

network_transport_delay

int

The network latency from the audio sender to the receiver in milliseconds.

jitter_buffer_delay

int

The network latency from the receiver to the jitter buffer in milliseconds.

Enumeration name

Description

AliRtcPositionPostCapture

Collect data.

AliRtcPositionPreRender

Stream pulling data.

AliRtcPositionPreEncoder

Data before encoding.

Enumeration name

Description

AliRtcVideoFormatUNKNOW

Unknown format.

AliRtcVideoFormatBGRA

BGRA.

AliRtcVideoFormatI420

I420.

AliRtcVideoFormatNV21

NV21.

AliRtcVideoFormatNV12

NV12.

AliRtcVideoFormatRGBA

RGBA.

AliRtcVideoFormatI422

I422.

AliRtcVideoFormatARGB

ARGB.

AliRtcVideoFormatABGR

ABGR.

AliRtcVideoFormatRGB24

RGB24.

AliRtcVideoFormatBGR24

BGR24.

AliRtcVideoFormatRGB565

RGB565.

AliRtcVideoFormatTextureOES

TextureOES.

AliRtcVideoFormatTexture2D

Texture2D.

AliRtcVideoFormatH264

H.264 encoded video stream format.

AliRtcVideoFormatH265

H.265 (HEVC) encoded video stream format.

AliRtcVideoFormatFile

Indicates that the data is from a file.

Enumeration name

Description

AliRtcConnectionStatusInit

Initialization is complete.

AliRtcConnectionStatusDisconnected

The network connection is disconnected.

AliRtcConnectionStatusConnecting

Establishing a network connection.

AliRtcConnectionStatusConnected

The network is connected.

AliRtcConnectionStatusReconnecting

Re-establishing a network connection.

AliRtcConnectionStatusFailed

The network connection failed.

Enumeration name

Description

AliRtcConnectionChangedDummyReason

Unknown reason.

AliRtcConnectionMediaPathChanged

The media channel changed.

AliRtcConnectionSignalingHeartbeatTimeout

Heartbeat timeout.

AliRtcConnectionSignalingHeartbeatAlive

Heartbeat recovered.

AliRtcConnectionSignalingHttpDnsResolved

DNS resolution succeeded.

AliRtcConnectionSignalingHttpDnsFailure

DNS resolution failed.

AliRtcConnectionSignalingGslbFailure

GSLB request failed.

AliRtcConnectionSignalingGslbSucccess

GSLB request succeeded.

AliRtcConnectionSignalingJoinRoomFailure

Failed to join the channel.

AliRtcConnectionSignalingJoinRoomSuccess

Joined the channel successfully.

AliRtcConnectionSignalingLeaveRoom

Left the channel.

AliRtcConnectionSignalingConnecting

Establishing a signaling connection.

AliRtcConnectionChangedNetworkInterrupted

The network connection is interrupted.

Enumeration name

Description

AliRtcVideoTrackNo

No video stream.

AliRtcVideoTrackCamera

Camera stream.

AliRtcVideoTrackScreen

Screen sharing stream.

AliRtcVideoTrackBoth

Camera and screen sharing.

Enumeration name

Description

AliRtcStatsPublishIdle

Initial state.

AliRtcStatsNoPublish

Not ingesting.

AliRtcStatsPublishing

Ingesting.

AliRtcStatsPublished

Ingested.

Enumeration name

Description

AliRtcStatsSubscribeIdle

Initial state.

AliRtcStatsNoSubscribe

Not subscribed.

AliRtcStatsSubscribing

Subscribing.

AliRtcStatsSubscribed

Subscribed.

Enumeration name

Description

AliRtcUserOfflineQuit

The user actively left.

AliRtcUserOfflineDropped

The user was dropped due to a timeout because no data packets were received from the user for an extended period.

AliRtcUserOfflineBecomeAudience

Triggered when the user role switches from streamer to viewer.

Enumeration name

Description

AliRtcVideoStreamTypeNone

No video stream.

AliRtcVideoStreamTypeHigh

Large stream

AliRtcVideoStreamTypeLow

Substream.

Enumeration name

Description

AliRtcAudioTrackNo

No audio stream.

AliRtcAudioTrackMic

Microphone stream.

AliRtcAudioTrackDual

Second audio stream.

AliRtcAudioTrackBoth

Microphone + second audio stream.

Enumeration name

Description

AliRtcNetworkExcellent

Excellent network. The stream is smooth and has high definition.

AliRtcNetworkGood

Good network. The stream quality is nearly as good as the Excellent level.

AliRtcNetworkPoor

Poor network. Audio and video quality is slightly reduced, but communication is not affected.

AliRtcNetworkBad

Bad network. Video stutters severely, but audio communication is still possible.

AliRtcNetworkVeryBad

Very bad network. Communication is almost impossible.

AliRtcNetworkDisconnected

The network is disconnected.

AliRtcNetworkUnknow

Unknown.

Enumeration name

Description

AliRtcRenderModeAuto

Automatic.

AliRtcRenderModeStretch

Stretches to fill the view. The video aspect ratio is not maintained.

AliRtcRenderModeFill

Scales while maintaining the video aspect ratio. Fills with black bars.

AliRtcRenderModeClip

Scales while maintaining the video aspect ratio and crops to fit the view.

AliRtcRenderModeNoChange

Renders without adjusting the aspect ratio of the input video. Suitable for scenarios where the input video and target resolution are identical, or for custom adaptation logic.

Enumeration name

Description

AliRtcRenderMirrorModeOnlyFront

Only the front camera preview is mirrored. Other views are not mirrored.

AliRtcRenderMirrorModeAllEnabled

All views are mirrored.

AliRtcRenderMirrorModeAllDisable

No views are mirrored.

Enumeration name

Description

AliRtcRotationMode_0

No rotation.

AliRtcRotationMode_90

Rotate 90 degrees.

AliRtcRotationMode_180

Rotate 180 degrees.

AliRtcRotationMode_270

Rotate 270 degrees.

Enumeration name

Description

AliRtcLogLevelInfo

Normal.

AliRtcLogLevelWarn

Warning.

AliRtcLogLevelError

Error.

AliRtcLogLevelFatal

Fatal.

AliRtcLogLevelNone

None.

Enumeration name

Description

AliRtcMonoAudio

Mono.

AliRtcStereoAudio

Stereo.

Enumeration name

Description

AliRtcAudioSampleRate_8000

Sample rate of 8000.

AliRtcAudioSampleRate_11025

Sample rate of 11025.

AliRtcAudioSampleRate_16000

Sample rate of 16000.

AliRtcAudioSampleRate_22050

Sample rate of 22050.

AliRtcAudioSampleRate_32000

Sample rate of 32000.

AliRtcAudioSampleRate_44100

Sample rate of 44100.

AliRtcAudioSampleRate_48000

Sample rate of 48000.

AliRtcAudioSampleRate_Unknown

Unknown sample rate.

AliRtcAudioSampleRate_Max

Boundary value.

Enumeration name

Description

AliRtcRecordTypeAudio

Records an audio-only file.

AliRtcRecordTypeVideo

Records a video file.

Enumeration name

Description

AliRtcRecordFormatAAC

AAC file.

AliRtcRecordFormatWAV

WAV file.

AliRtcRecordFormatMP4

MP4 file.

Enumeration name

Description

AliRtcAudioQualityLow

Low.

AliRtcAudioQualityMidium

Medium.

AliRtcAudioQualityHigh

High.

Enumeration name

Description

AliRtcVideoQualityDefault

The default quality is the same as the video capture quality. Video recording is not available on mobile clients.

Enumeration name

Description

AliRtcEngineLowQualityMode

Low audio quality mode.

AliRtcEngineBasicQualityMode

Standard audio quality mode.

AliRtcEngineHighQualityMode

High audio quality mode.

AliRtcEngineStereoHighQualityMode

Stereo high audio quality mode.

AliRtcEngineSuperHighQualityMode

Super-high audio quality mode.

AliRtcEngineStereoSuperHighQualityMode

Stereo super-high audio quality mode.

Enumeration name

Description

AliRtcSceneDefaultMode

Default scenario. Recommended for general audio and video communication scenarios.

AliRtcSceneEducationMode

Education scenario. Prioritizes audio continuity and stability.

AliRtcSceneMediaMode

Media scenario. Preserves human voice and music quality. Recommended for interactive live streaming channels.

AliRtcSceneMusicMode

Music scenario. High-fidelity music quality. Recommended for scenarios with high music quality requirements, such as musical instrument lessons.

AliRtcSceneChatroomMode

Chat room scenario. Suitable for chat scenarios with frequent microphone usage. The volume bar always indicates the voice call volume.

Enumeration name

Description

AliRtcMuteAudioModeDefault

Default mode. Mutes all audio, including microphone and external audio input.

AliRtcMuteAllAudioMode

Mutes all audio, including microphone and external audio input.

AliRtcMuteOnlyMicAudioMode

Mutes only the microphone.

AliRtcMuteLocalAudioMax

Placeholder.

Enumeration name

Description

AliRtcAudioSampleRate

The sample rate of the recorded audio file.

AliRtcAudioQuality

The quality of the recorded audio file.

Enumeration name

Description

AliRtcVideoQuality

The quality of the recorded video file.

Enumeration name

Description

AliRtcByeTypeKickOff

Kicked out.

AliRtcByeTypeDelChannel

The channel was deleted.

AliRtcByeTypeRestoreSession

A passive departure requires session recovery.

Enumeration name

Description

AliRtcSdk_AudioEffect_Voice_Changer_OFF

Off.

AliRtcSdk_AudioEffect_Voice_Changer_Oldman

Old man.

AliRtcSdk_AudioEffect_Voice_Changer_Babyboy

Baby boy.

AliRtcSdk_AudioEffect_Voice_Changer_Babygirl

Baby girl.

AliRtcSdk_AudioEffect_Voice_Changer_Robot

Robot.

AliRtcSdk_AudioEffect_Voice_Changer_Daimo

Devil.

AliRtcSdk_AudioEffect_Voice_Changer_Ktv

KTV.

AliRtcSdk_AudioEffect_Voice_Changer_Echo

Echo.

AliRtcSdk_AudioEffect_Voice_Changer_Dialect

Dialect.

AliRtcSdk_AudioEffect_Voice_Changer_Howl

Howl.

AliRtcSdk_AudioEffect_Voice_Changer_Electronic

Electronic.

AliRtcSdk_AudioEffect_Voice_Changer_Phonograph

Phonograph.

AliRtcSdk_AudioEffect_Voice_Changer_MAX

Placeholder. No meaning.

Enumeration name

Description

AliRtcAudioEffectReverb_Off

Off.

AliRtcAudioEffectReverb_Vocal_I

Vocal I.

AliRtcAudioEffectReverb_Vocal_II

Vocal II.

AliRtcAudioEffectReverb_Bathroom

Bathroom.

AliRtcAudioEffectReverb_Small_Room_Bright

Bright small room.

AliRtcAudioEffectReverb_Small_Room_Dark

Dark small room.

AliRtcAudioEffectReverb_Medium_Room

Medium room.

AliRtcAudioEffectReverb_Large_Room

Large room.

AliRtcAudioEffectReverb_Church_Hall

Church hall.

Enumeration name

Description

AliRtcAudioEffectReverb_Room_Size

Room size. Value range: [0, 100].

AliRtcAudioEffectReverb_Pre_Delay

Pre-delay in milliseconds. Value range: [0, 200].

AliRtcAudioEffectReverb_Revetberance

Reverberance. Value range: [0, 100].

AliRtcAudioEffectReverb_Hf_Damping

Damping. Value range: [0, 100].

AliRtcAudioEffectReverb_Tone_Low

Low tone. Value range: [0, 100].

AliRtcAudioEffectReverb_Tone_High

High tone. Value range: [0, 100].

AliRtcAudioEffectReverb_Dry_Gain

Dry gain. Value range: [-20, 10].

AliRtcAudioEffectReverb_Wet_Gain

Wet gain. Value range: [-20, 10].

Enumeration name

Description

AliRtcAudioRouteType_Default

Default audio route.

AliRtcAudioRouteType_Headset

Headset.

AliRtcAudioRouteType_Earpiece

Earpiece.

AliRtcAudioRouteType_HeadsetNoMic

Headphones without a microphone.

AliRtcAudioRouteType_Speakerphone

Phone speaker.

AliRtcAudioRouteType_LoudSpeaker

External speaker.

AliRtcAudioRouteType_BlueTooth

Bluetooth headset.

Parameter

Type

Description

aliVideoCanvas

AliRtcVideoCanvas

The rendering canvas.

userId

String

The remote user ID.

videoTrack

int

The video stream type.

Parameter

Type

Description

textureId

int

The texture ID of the video data.

textureWidth

int

The texture width.

textureHeight

int

The texture height.

sharedContext

long

The thread-related context variable for OpenGL.

enableBeauty

boolean

Whether to enable retouching. Valid values:

• true: Enable.

• false: Disable.

The default value is false.

view

View

The video display view. The view must be a SurfaceView rendering view created by calling the createRenderSurfaceView

A SurfaceView rendering view, or the view returned by createRenderTextureView

The TextureView rendering view is created.

renderMode

AliRtcRenderMode

The view rendering mode. The default value is AliRtcRenderModeAuto.

mirrorMode

AliRtcRenderMirrorMode

The view mirror mode. The default value is AliRtcRenderMirrorModeOnlyFront.

rotationMode

AliRtcRotationMode

The view rotation angle. The default value is AliRtcRotationMode_0.

backgroundColor

int

The background color of the view.

Enumeration name

Description

AliRtcMpuStateStart

The bypass task is starting.

AliRtcMpuStateUpdate

The bypass task is updating.

AliRtcMpuStateStop

The bypass task is stopping.

AliRtcMpuStateEnd

The bypass task has ended.

AliRtcMpuStateConnect

The bypass task is connecting.

AliRtcMpuStateRunning

The bypass task is running.

AliRtcMpuStateRecovering

The bypass task is recovering.

AliRtcMpuStateFailed

The bypass task failed.

AliRtcMpuStateUnknow

The bypass task is in an unknown state.

Parameter name

Type

Description

x

float

The horizontal offset of the top-left corner.

y

float

The vertical offset of the top-left corner.

width

float

The width of the watermark image.

height

float

The height of the watermark image.

Parameter name

Type

Description

visibleInPreview

boolean

Whether the watermark is visible in the local preview.

positionInLandscapeMode

AliRtcRectPosition

The watermark coordinates in landscape mode.

positionInPortraitMode

AliRtcRectPosition

The watermark coordinates in portrait mode.

alpha

float

The transparency.

normalized

boolean

Normalization.

Parameter

Type

Description

textureId

int

The texture ID.

mirrorMode

AliRtcRenderMirrorMode

The mirror mode.

Parameter

Type

Description

preference

AliRtcCaptureOutputPreference

The capture preference.

cameraDirection

AliRtcCameraDirection

The camera direction. Supported only on Android and iOS.

fps

int

The frame rate of the encoder. The default internal frame rate is 15.

cameraCaptureProfile

AliRtcCameraCaptureProfile

The resolution for video capture.

disableVideoCaptureReverse

int

Setting to disable flipping of captured video frames based on aspect ratio.

captureObserverOriginal

int

Whether to call back the original video frame data.

textureEncode

int

Whether to use texture encoding.

cameraTextureCapture

int

Whether to enable texture capture for the camera.

Enumeration name

Description

CAPTURER_OUTPUT_PREFERENCE_AUTO

Automatically adjusts capture parameters.

CAPTURER_OUTPUT_PREFERENCE_PERFORMANCE

Prioritizes device performance. Selects the camera output parameters that are closest to the parameters set by setVideoProfile.

CAPTURER_OUTPUT_PREFERENCE_PREVIEW

Prioritizes video preview quality. Selects higher camera output parameters.

Enumeration name

Description

CAMERA_INVALID

Invalid.

CAMERA_REAR

Use the rear camera.

CAMERA_FRONT

Use the front camera.

Enumeration name

Description

ALIRTC_CAMERA_CAPTURER_PROFILE_DEFAULT

Default.

ALIRTC_CAMERA_CAPTURER_PROFILE_1080P

Used for 1080p video. When enabled, the camera captures at 1080p resolution.

Enumeration name

Description

AliRtcVideoEncoderFrameRate_FPS_5

5 FPS.

AliRtcVideoEncoderFrameRate_FPS_10

10 FPS.

AliRtcVideoEncoderFrameRate_FPS_15

15 FPS.

AliRtcVideoEncoderFrameRate_FPS_20

20 FPS.

AliRtcVideoEncoderFrameRate_FPS_30

30 FPS.

Enumeration name

Description

AliRtcVideoEncoderStandardBitrate

Standard bitrate mode.

Enumeration name

Description

AliRtcVideoEncoderMirrorModeDisabled

Encoded video is mirrored.

AliRtcVideoEncoderMirrorModeEnabled

Encoded video is not mirrored.

Enumeration name

Description

AliRtcVideoEncoderOrientationModeAdaptive

Adaptive. The angle is the same as the captured video.

AliRtcVideoEncoderOrientationModeFixedLandscape

Fixed landscape.

AliRtcVideoEncoderOrientationModeFixedPortrait

Fixed portrait.

Parameter name

Type

Description

width

int

The video width.

height

int

The video height.

Parameter name

Type

Description

dimensions

AliRtcVideoDimensions

The video resolution. The default value is 640x480. The maximum value is 1920x1080.

frameRate

int

The video encoding frame rate. The default value is 15. The maximum value is 30.

bitrate

int

The video encoding bitrate in Kbps. The default value is 512. If you set this parameter to 0, the SDK automatically calculates a suitable bitrate based on the video resolution and frame rate.

The bitrate must be within a reasonable range for the specified resolution and frame rate. If the value is outside the valid range, the SDK automatically adjusts the bitrate to a valid value.

minBitrate

NSInteger

The minimum video encoding bitrate in Kbps. The default value is 0.

keyFrameInterval

int

The keyframe interval in milliseconds. The default value is 0, which means the SDK controls the keyframe interval.

forceStrictKeyFrameInterval

boolean

Whether to force the encoder to generate keyframes at the specified interval. The default value is false.

• false: The encoder responds to keyframe requests, such as when another user joins the channel. The actual keyframe interval may not strictly match the specified value.

• true: The encoder does not respond to other keyframe requests and strictly generates keyframes at the specified interval. This may slow down the rendering of the first frame for subscribers.

mirrorMode

AliRtcVideoEncoderMirrorMode

The encoded video mirror mode.

orientationMode

AliRtcVideoEncoderOrientationMode

The encoded video rotation mode.

rotationMode

AliRtcRotationMode

The video rotation angle.

codecType

AliRtcVideoCodecType

The codec type.

encodeCodecType

AliRtcVideoEncodeCodecType

The video encoding type.

seiForceFrontIFrame

int

Forces an I-frame before sending SEI.

-1 indicates the default value, 0 indicates not to force, and 1 indicates to force (default).

enableDynamicEncode

int

Enables dynamic encoding.

Creates both hardware and software encoders simultaneously. If the hardware encoder fails, it downgrades to the software encoder. -1 indicates the default value, 0 indicates not to create both types of encoders, and 1 indicates to create both.

disableDipenseResolutionChange

int

Disables the ability of QoS to reduce resolution.

When QoS detects that the real-time bandwidth is insufficient for the current resolution, it reduces the video encoding resolution.

-1 indicates the default value, 0 allows reduction, and 1 disallows QoS from reducing the resolution.

enableDowngrade

int

Allows QoS to reduce the video encoding bitrate based on the actual detected bandwidth.

-1 indicates the default value, 0 disallows reducing the bitrate, and 1 allows reducing the bitrate.

enableH264BFrame

int

Whether to enable H.264 B-frame support.

-1 indicates the default value, 0 disables B-frame support, and 1 enables B-frame support.

enableHevcBFrame

int

Whether to enable HEVC B-frame support.

-1 indicates the default value, 0 disables B-frame support, and 1 enables B-frame support.

Enumeration name

Description

AliRtcVideoCodecTypeDefault

Not set. The default value (hardware encoding) is used.

AliRtcVideoCodecTypeSoftware

Software video codec.

AliRtcVideoCodecTypeHardware

Hardware video codec.

AliRtcVideoCodecTypeHardwareTexture

Hardware texture codec.

Parameter

Type

Description

codecType

AliRtcVideoCodecType

The codec type.

The default value is AliRtcVideoCodecTypeDefault, which uses the system's default settings.

enableDecoderBframe

int

Whether to enable B-frames for the decoder.

The default value is -1. Set to 0 to disable B-frames, and 1 to enable B-frames.

textureBindContext

int

Whether to support texture decoding with context binding.

The default value is -1. Set to 0 to disable, and 1 to enable the downgrade logic.

Enumeration name

Description

AliRtcVideoEncodeCodecTypeDefault

Not set. The default value (currently H.264) is used.

AliRtcVideoEncodeCodecTypeH264

H.264 encoding.

AliRtcVideoEncodeCodecTypeHevc

HEVC encoding.

Parameter name

Type

Description

dimensions

AliRtcVideoDimensions

The video resolution.

frameRate

int

The video encoding frame rate.

bitrate

int

The video encoding bitrate.

rotationMode

AliRtcRotationMode

The ingest rotation angle.

keyFrameInterval

int

The keyframe interval in milliseconds. The default value is 0, which means the SDK controls the keyframe interval.

forceStrictKeyFrameInterval

boolean

Whether to force the encoder to generate keyframes at the specified interval. The default value is false.

• false: The encoder responds to keyframe requests, such as when another user joins the channel. The actual keyframe interval may not strictly match the specified value.

• true: The encoder does not respond to other keyframe requests and strictly generates keyframes at the specified interval. This may slow down the rendering of the first frame for subscribers.

Parameter name

Type

Description

channelId

String

The channel ID.

userId

String

The user ID.

appId

String

The application ID.

nonce

String

The nonce.

timestamp

long

The timestamp.

token

String

The token.

Parameter name

Type

Description

mMixMode

int

The stream mixing mode. Valid values:

• 0: Single-stream ingest. Only the original single stream is ingested without mixing or transcoding. No stream mixing or transcoding parameters need to be configured.

• 1: Stream mixing and transcoding. Supports mixed and transcoded output.

The default value is 1.

mLayoutIds

List<String>

An array of layout IDs.

mSubSpecUsers

List<TranscodingUser>

The list of users for stream mixing.

mUserPanes

List<TranscodingUserPane>

A list of user panes.

mLayouts

List<TranscodingLayout>

A list of custom user layouts.

mTaskProfile

String

The task billing configuration.

mBackgroundColor

int

The background color in RGB. The default value is 0 (black). The formula is R + G × 256 + B × 65536. The value range for R (red), G (green), and B (blue) is 0 to 255.

mMediaEncode

int

The encoding options.

mCropMode

int

The video cropping method. Valid values:

• 1: Crop while maintaining the aspect ratio.

• 2: Fill with black bars while maintaining the aspect ratio.

The default value is 2.

mStreamType

int

The audio stream to ingest in single-stream ingest mode. Valid values:

• 0: Ingest the original stream.

• 1: Ingest only the audio stream.

• 2: Ingest only the video stream.

The default value is 0.

mSourceType

String

The user's video input stream in single-stream ingest mode. Valid values:

• camera: Camera.

• shareScreen: Screen sharing.

mExternalParam

String

An extension field.

Parameter name

Type

Description

userID

String

The ID of the remote user.

sessionID

String

The session ID of the remote user.

displayName

String

The name of the remote user.

muteAudioPlaying

boolean

Whether the local user has muted this remote user.

isOnline

boolean

Whether the remote user is online.

cameraCanvas

AliRtcVideoCanvas

The camera stream canvas.

screenCanvas

AliRtcVideoCanvas

The screen stream canvas.

hasAudio

boolean

Whether the remote user has ingested an audio stream.

hasCameraMaster

boolean

Whether the remote user has ingested a high-definition camera stream.

hasCameraSlave

boolean

Whether the remote user has ingested a low-definition camera stream.

hasScreenSharing

boolean

Whether the remote user has ingested a screen stream.

subScribedAudio

boolean

Whether the local user has pulled the audio stream of this remote user.

subScribedCamearSlave

boolean

Whether the local user has pulled the low-definition camera stream of this remote user.

subScribedCameraMaster

boolean

Whether the local user has pulled the high-definition camera stream of this remote user.

subScribedScreenSharing

boolean

Whether the local user has pulled the screen stream of this remote user.

requestAudio

boolean

Whether the local user has subscribed to the audio stream of this remote user.

requestCameraSlave

boolean

Whether the local user has subscribed to the low-definition camera stream of this remote user.

requestCameraMaster

boolean

Whether the local user has subscribed to the high-definition camera stream of this remote user.

requestScreenSharing

boolean

Whether the local user has subscribed to the screen stream of this remote user.

preferCameraMaster

boolean

Whether the remote user has prioritized the high-definition stream.

hasCameraView

boolean

Whether the local user has set the view for the camera stream of this remote user.

hasScreenView

boolean

Whether the local user has set the view for the screen stream of this remote user.

Enumeration name

Description

AliRTCVideoChangedByClient

Client.

AliRTCVideoChangedByServer

Server.

Enumeration name

Description

AliRtcVideoVideoClose

Close the video stream.

AliRtcVideoVideoOpen

Resume the video stream.

Enumeration name

Description

AliRtcTrascodingPublishTaskStatusStart

The bypass live stream ingest task has started.

AliRtcTrascodingPublishTaskStatusUpdate

The bypass live stream ingest task is updating.

AliRtcTrascodingPublishTaskStatusStop

The bypass live stream ingest task has stopped.

Enumeration name

Description

AliEngineLiveTranscodingErrorPublishOk

Bypass live streaming is ready.

AliEngineLiveTranscodingErrorStreamNotFound

The bypass live stream ingest URL was not found.

AliEngineLiveTranscodingErrorStreamAlreadyExist

The requested stream already exists and cannot be created again.

AliEngineLiveTranscodingErrorInvalidParam

The input parameters are invalid, such as incorrect format or missing values.

AliEngineLiveTranscodingErrorInternalError

An unknown error occurred within the SDK.

AliEngineLiveTranscodingErrorRtmpServerError

The RTMP server returned an error, such as connection failure or authentication failure.

AliEngineLiveTranscodingErrorRtmpStreamUrlError

The RTMP stream URL format is incorrect, such as a missing protocol header or an incorrect domain name.

AliEngineLiveTranscodingErrorPublishTimeout

The bypass ingest operation did not complete within the specified time.

AliEngineLiveTranscodingErrorNotAuthorized

The user does not have permission to perform the current operation, such as an invalid or expired token.

Enumeration name

Description

AliRtcLiveTranscodingState_IDLE

Stream ingest is idle.

AliRtcLiveTranscodingState_CONNNECT

Connecting to the ingest server.

AliRtcLiveTranscodingState_RUNNING

Stream ingest is in progress.

AliRtcLiveTranscodingState_RECOVERING

Recovering stream ingest.

AliRtcLiveTranscodingState_FAILURE

Stream ingest failed.

AliRtcLiveTranscodingState_END

Stream ingest has ended.

Enumeration name

Description

AliRtcLiveTranscodingNormal

Normal mode.

AliRtcLiveTranscodingVirtualBackground

Virtual background mode.

Enumeration name

Description

AliRtcLiveTranscodingCrop

Crop while maintaining the aspect ratio.

AliRtcLiveTranscodingFill

Fill with black bars while maintaining the aspect ratio (default).

Enumeration name

Description

NOTO_SERIF_CJKSC_REGULAR

Noto Serif CJK SC Regular.

ALIBABA_PUHUITI_REGULAR

Alibaba PuHuiTi Regular.

ALIBABA_PUHUITI_BOLD

Alibaba PuHuiTi Bold.

ALIBABA_PUHUITI_Heavy

Alibaba PuHuiTi Heavy.

ALIBABA_PUHUITI_LIGHT

Alibaba PuHuiTi Light.

ALIBABA_PUHUITI_MEDIUM

Alibaba PuHuiTi Medium.

Enumeration name

Description

AliRtcLiveTranscodingNoBody

No portrait segmentation.

AliRtcLiveTranscodingBody

Portrait segmentation.

Enumeration name

Description

AliRtcLiveTranscoding_HZ_48000

Sample rate of 48000 Hz.

AliRtcLiveTranscoding_HZ_44100

Sample rate of 44100 Hz.

AliRtcLiveTranscoding_HZ_32000

Sample rate of 32000 Hz.

AliRtcLiveTranscoding_HZ_16000

Sample rate of 16000 Hz.

AliRtcLiveTranscoding_HZ_8000

Sample rate of 8000 Hz.

Enumeration name

Description

AliRtcLiveTranscoding_Profile_1IN_1080P

1IN_1080P.

AliRtcLiveTranscoding_Profile_1IN_720P

1IN_720P.

AliRtcLiveTranscoding_Profile_1IN_360P

1IN_360P.

AliRtcLiveTranscoding_Profile_2IN_1080P

2IN_1080P.

AliRtcLiveTranscoding_Profile_2IN_720P

2IN_720P.

AliRtcLiveTranscoding_Profile_2IN_360P

2IN_360P.

AliRtcLiveTranscoding_Profile_4IN_1080P

4IN_1080P.

AliRtcLiveTranscoding_Profile_4IN_720P

4IN_720P.

AliRtcLiveTranscoding_Profile_4IN_360P

4IN_360P.

AliRtcLiveTranscoding_Profile_9IN_1080P

9IN_1080P.

AliRtcLiveTranscoding_Profile_9IN_720P

9IN_720P.

AliRtcLiveTranscoding_Profile_9IN_360P

9IN_360P.

AliRtcLiveTranscoding_Profile_12IN_1080P

12IN_1080P.

AliRtcLiveTranscoding_Profile_12IN_720P

12IN_720P.

AliRtcLiveTranscoding_Profile_12IN_360P

12IN_360P.

AliRtcLiveTranscoding_Profile_16IN_1080P

16IN_1080P.

AliRtcLiveTranscoding_Profile_16IN_720P

16IN_720P.

AliRtcLiveTranscoding_Profile_16IN_360P

16IN_360P.

AliRtcLiveTranscoding_Profile_Mixed

Audio-only.

Enumeration name

Description

AliRtcLiveTranscodingCamera

Camera.

AliRtcLiveTranscodingShareScreen

Screen sharing.

Enumeration name

Description

AliRtcLiveTranscodingOrigin

Ingest the original stream.

AliRtcLiveTranscodingAudio

Ingest only the audio stream.

AliRtcLiveTranscodingVideo

Ingest only the video stream.

Enumeration name

Description

AliRtcLiveTranscodingSINGLE

Single-stream ingest. Only the original single stream is ingested without mixing or transcoding. No stream mixing or transcoding parameters need to be configured.

AliRtcLiveTranscodingMIX

Stream mixing and transcoding (default). Supports mixed and transcoded output.

Enumeration name

Description

AliRtcAlignmentDefault

No processing. The original data is called back directly.

AliRtcAlignmentEven

The width is processed to be an even number.

AliRtcAlignment4

The width is processed to be a multiple of 4.

AliRtcAlignment8

The width is processed to be a multiple of 8.

AliRtcAlignment16

The width is processed to be a multiple of 16.

Parameter

Type

Description

videoWidth

int

The width.

videoHeight

int

High

videoFramerate

int

The frame rate.

videoBitrate

int

The bitrate.

videoGop

int

The GOP.

videoCodec

AliRtcLiveTranscodingVideoCodec

The encoder type, H.264 or H.265.

audioSamplerate

AliRtcLiveTranscodingAudioSampleRate

The bypass live streaming audio sample rate.

audioBitrate

int

The audio bitrate.

audioChannels

int

The number of audio channels.

Parameter

Type

Description

taskProfile

AliRtcLiveTranscodingTaskProfile

The bypass live streaming billing specifications.

encodeParam

AliRtcLiveTranscodingEncodeParam

The bypass live streaming encoding parameters.

users

List<TranscodingUser>

A list of bypass live streaming users.

backgroundColor

int

The background color.

backgrounds

List<TranscodingImage>

A list of background images.

watermarks

List<TranscodingImage>

A list of watermark images.

clockWidgets

List<TranscodingClockWidget>

A list of clock widgets.

cropMode

AliRtcLiveTranscodingCropMode

The bypass live streaming crop mode.

mediaProcessMode

AliRtcLiveTranscodingMediaProcessMode

The bypass live streaming media processing mode.

Parameter

Type

Description

mixMode

AliRtcLiveTranscodingMixMode

The bypass live streaming mode.

singleParam

AliRtcLiveTranscodingSingleParam

The bypass live streaming single-stream parameters.

mixParam

AliRtcLiveTranscodingMixParam

The bypass live stream mixing parameters.

Parameter

Type

Description

userId

String

The user ID.

streamType

AliRtcLiveTranscodingStreamType

The bypass live stream ingest type.

sourceType

AliRtcLiveTranscodingSourceType

The bypass live streaming video stream type.

Parameter

Type

Description

mX

int

The X coordinate in pixels.

mY

int

The Y coordinate in pixels.

mFontSize

int

The bypass live streaming font size.

mZorder

int

The stacking order. 0 is the bottom layer, 1 is above 0, and so on.

mFontColor

int

The bypass live streaming font color.

mFontType

AliRtcLiveTranscodingFontType

The bypass live streaming font.

Parameter

Type

Description

mUserId

String

The user ID.

x

int

The X coordinate in pixels.

y

int

The Y coordinate in pixels.

width

int

The pane width.

height

int

The pane height.

zOrder

int

The stacking order. 0 is the bottom layer, 1 is above 0, and so on.

streamType

AliRtcLiveTranscodingStreamType

The bypass live stream ingest mode.

sourceType

AliRtcLiveTranscodingSourceType

The bypass live streaming video stream type.

segmentType

AliRtcLiveTranscodingSegmentType

The bypass live streaming input type.

images

List<TranscodingImage>

A list of images.

texts

List<TranscodingText>

A list of texts.

Parameter

Type

Description

mText

String

The text information.

mX

int

The X coordinate in pixels.

mY

int

The Y coordinate in pixels.

mFontSize

int

The font size.

mZorder

int

The stacking order. 0 is the bottom layer, 1 is above 0, and so on.

mFontColor

int

The font color.

mFontType

AliRtcLiveTranscodingFontType

The bypass live streaming font.

Parameter

Type

Description

mUrl

String

The image URL.

mAlpha

float

The transparency. 0.0 is transparent, and 1.0 is completely opaque.

mDisplay

DisplayType

The image display.

mX

int

The X coordinate in pixels.

mY

int

The Y coordinate in pixels.

mWidth

int

The pane width.

mHeight

int

The pane height.

mZorder

int

The stacking order. 0 is the bottom layer, 1 is above 0, and so on.

Enumeration name

Description

NOT_DISPLAY

Do not display.

ALWAYS

Always display.

WHEN_NO_VIDEO

Display when there is no video.

Enumeration name

Description

AliRtcScreenShareNoneMode

Do not share.

AliRtcScreenShareOnlyVideoMode

Share the video stream.

AliRtcScreenShareOnlyAudioMode

Share the app audio stream.

AliRtcScreenShareAllMode

Share all audio and video streams.

Enumeration name

Description

AliCapabilityProfileDefault

Default value. No special requirements.

AliCapabilityProfileAiHuman

Feature configuration for a real user in an AI agent call scenario.

AliCapabilityProfileAiRobot

Feature configuration for a robot in an AI agent call scenario.

Parameter

Type

Description

channelId

String

The channel number.

userId

String

The username for joining the channel.

userName

String

A display name for the user, not the User ID. Can be left empty to indicate no username.

capabilityProfile

AliCapabilityProfile

User properties. Requires special configuration in AI agent call scenarios. Use the default value for non-AI agent call scenarios.

Parameter

Type

Description

probeUplink

boolean

Whether to probe the upstream bandwidth. The default value is false.

probeDownlink

boolean

Whether to probe the downstream bandwidth. The default value is false. Not currently supported.

expectedUplinkBitrateKbps

int

The peak value for upstream bandwidth probing in Kbps. The default value is 1000.

expectedDownlinkBitrateKbps

int

The peak value for downstream bandwidth probing in Kbps. Not currently supported. The default value is 1000.

Parameter

Type

Description

rtt

int

The RTT of the link in ms.

uplinkPacketLossRate

int

The packet loss rate of the upstream network probe. The maximum value is 100%.

upLinkJitter

int

The jitter of the upstream network probe in ms.

upLinkAvailableBandwidth

int

The upstream network bandwidth in Kbps.

downLinkPacketLossRate

int

The packet loss rate of the downstream network probe. The maximum value is 100%. Not currently supported.

downLinkJitter

int

The jitter of the downstream network probe in ms. Not currently supported.

downLinkAvailableBandwidth

int

The downstream network bandwidth in Kbps. Not currently supported.

Enumeration name

Description

AliRtcVideoPipelineMirrorModeNoMirror

Mirroring is disabled for both preview and encoding.

AliRtcVideoPipelineMirrorModeBothMirror

Mirroring is enabled for both preview and encoding.

AliRtcVideoPipelineMirrorModeOnlyPreviewMirror

Mirroring is enabled only for preview.

AliRtcVideoPipelineMirrorModeOnlyPublishMirror

Mirroring is enabled only for stream ingest.

Enumeration name

Description

AliRtcCapturePipelineScaleModePre

Scale immediately after capture (default).

AliRtcCapturePipelineScaleModePost

Scale during encoding.

Parameter name

Type

Description

dataPtr

long

The native pointer to the audio data.

data

byte[]

The audio data.

numSamples

int

The number of samples.

bytesPerSample

int

The number of bytes per sample.

numChannels

int

The number of sound channels.

samplesPerSec

int

The number of samples per second.

Enumeration name

Description

AliRtcAudioSourceCaptured

Captured audio data.

AliRtcAudioSourceProcessCaptured

Audio data after 3A processing.

AliRtcAudioSourcePub

Ingested audio data.

AliRtcAudioSourcePlayback

Playback audio data.

AliRtcAudioSourceMixedAll

Audio data after mixing ingested and playback audio.

AliRtcAudioSourceRemoteUser

Remote audio data from stream pulling.

Parameter

Type

Description

sampleRate

AliRtcAudioSampleRate

The callback audio sample rate enumeration. The default value is AliRtcAudioSampleRate_48000.

channels

AliRtcAudioNumChannel

The number of callback audio channels. Supports mono and stereo. The default value is mono (AliRtcMonoAudio).

mode

AliRtcAudioFrameObserverOperationMode

The callback mode. Includes read-only mode (0), write-only mode (1), and read-write mode (2). The default value is read-only mode (AliRtcAudioDataObserverOperationModeReadOnly).

userDefinedInfo

int

Custom user parameters. Used to set the stream mixing mode for the onMixedAllAudioFrame callback. The default is to mix externally rendered audio (AliRtcAudioFrameObserverUserDefinedInfoBitMaskMixExRender).

Enumeration name

Description

AliRtcAudioDataObserverOperationModeReadOnly

Read-only mode.

AliRtcAudioDataObserverOperationModeWriteOnly

Write-only mode.

AliRtcAudioDataObserverOperationModeReadWrite

Read-write mode.

Enumeration name

Description

AliRtcAudioFrameObserverUserDefinedInfoBitMaskMixExCapture

The onMixedAllAudioFrame callback mixes externally ingested audio.

AliRtcAudioFrameObserverUserDefinedInfoBitMaskMixExRender

The onMixedAllAudioFrame callback mixes externally rendered audio.

Enumeration name

Description

AliRtcOrientationModePortrait

Fixed portrait mode

AliRtcOrientationModeLandscapeLeft

Fixed landscape left mode

AliRtcOrientationModePortraitUpsideDown

Fixed upside-down mode

AliRtcOrientationModeLandscapeRight

Fixed landscape right mode

AliRtcOrientationModeAuto

Adaptive mode

Enumeration value

Description

AliRtcAudioAccompanyNoError(0)

No error. Normal playback.

AliRtcAudioAccompanyOpenFailed(-100)

Failed to open the audio file, such as an invalid path, insufficient permissions, or a corrupted file.

AliRtcAudioAccompanyDecodeFailed(-101)

Failed to decode the audio file, such as an unsupported format or an encoding error.

Property

Type

Description

onlyLocalPlay

boolean

Whether to play only locally. The default value is false.

replaceMic

boolean

Whether to replace the microphone. The default value is false.

loopCycles

int

The number of loops. Set to -1 for infinite loops or a positive integer. Other values are invalid. The default value is -1.

startPosMs

long

The starting position in ms. The default value is 0.

publishVolume

int

The ingest volume. The value range is [0, 100]. The default value is 50.

playoutVolume

int

The playback volume. The value range is [0, 100]. The default value is 50.

Parameter name

Type

Description

channels

int

The number of sound channels. The default value is 1.

sampleRate

int

The sample rate. The default value is 48000. Supported sample rates are 8000, 12000, 16000, 24000, 32000, 44100, 48000, and 96000.

playoutVolume

int

The playback volume. The value range is [0, 100]. The default value is 50.

publishVolume

int

The ingest volume. The value range is [0, 100]. The default value is 50.

publishStream

int

Specifies the bound audio stream.

• 0: MIC stream.

• 1: Second audio stream.

enable3A

boolean

Whether to apply 3A processing to the input PCM audio. The default value is false.

Parameter name

Type

Description

type

AliRtcDataMsgType

The type of data channel message. It is recommended to set this to AliEngineDataMsgCustom.

networkTime

long

The NTP time when the message is sent. Used only when type is AliEngineDataMsgMusicProgress in KTV scenarios. Does not need to be set for other scenarios.

progress

int

The current progress in milliseconds. Used only when type is AliEngineDataMsgMusicProgress in KTV scenarios. Does not need to be set for other scenarios.

data

byte[]

The message content, which can be any data such as text or images.

Enumeration name

Description

AliEngineDataMsgNone

No message.

AliEngineDataMsgMusicProgress

Used in KTV scenarios.

AliEngineDataMsgCustom

Normal message. It is recommended to set this type for other scenarios.

Parameter

Type

Description

width

int

The width.

height

int

The height.

frame_rate

int

The frame rate.

bitrate_bps

int

The bitrate in bps.

Enumeration name

Description

AliRtcVideoEncodedFrameNULL(0)

None.

AliRtcVideoEncodedFrameIDR(1)

IDR frame.

AliRtcVideoEncodedFrameLTR(2)

LTR frame.

AliRtcVideoEncodedFrameB(3)

B-frame.

Enumeration name

Description

AliRtcAudioAccompanyStarted(100)

Accompaniment started playing.

AliRtcAudioAccompanyStopped (101)

Accompaniment stopped playing.

AliRtcAudioAccompanyPaused(102)

Accompaniment paused.

AliRtcAudioAccompanyResumed(103)

Accompaniment resumed playing from a paused state.

AliRtcAudioAccompanyEnded(104)

Accompaniment finished playing normally.

AliRtcAudioAccompanyBuffering(105)

Accompaniment is buffering. This applies to network streams or large files.

AliRtcAudioAccompanyBufferingEnd(106)

Buffering has ended and normal playback has started.

AliRtcAudioAccompanyFailed(107)

Accompaniment playback failed. Check the error code for the specific reason.

Parameter

Type

Description

filePath

String

The audio file path.

durationMs

long

The duration of the audio file in ms.

Enumeration name

Description

AliEngineLocalDeviceTypeUnknown

Unknown device type.

AliEngineLocalDeviceTypeMic

Microphone device.

AliEngineLocalDeviceTypeSpeaker

Speaker device.

AliEngineLocalDeviceTypeAudioDevice

Audio device.

AliEngineLocalDeviceTypeCamera

Camera device.

AliEngineLocalDeviceTypeDisplay

Display device.

AliEngineLocalDeviceTypeVideoDevice

Video device.

Enumeration value

Description

AliRtcSdk_AudioEffect_Beautify_Off

Disables voice retouching effects.

AliRtcSdk_AudioEffect_Beautify_Magnetic

Magnetic.

AliRtcSdk_AudioEffect_Beautify_Fresh

Fresh.

AliRtcSdk_AudioEffect_Beautify_Mode_Max

Placeholder. Represents the maximum value and cannot be used for actual settings.

Enumeration constant

Description

AliRtcSdk_AudioEffect_EqualizationBand31

31 Hz

AliRtcSdk_AudioEffect_EqualizationBand62

62 Hz

AliRtcSdk_AudioEffect_EqualizationBand125

125 Hz

AliRtcSdk_AudioEffect_EqualizationBand250

250 Hz

AliRtcSdk_AudioEffect_EqualizationBand500

500 Hz

AliRtcSdk_AudioEffect_EqualizationBand1K

1 kHz

AliRtcSdk_AudioEffect_EqualizationBand2K

2 kHz

AliRtcSdk_AudioEffect_EqualizationBand4K

4 kHz

AliRtcSdk_AudioEffect_EqualizationBand8K

8 kHz

AliRtcSdk_AudioEffect_EqualizationBand16K

16 kHz