:UpdateLiveMPUTask (new)

RenderMode

String

No

1

The display mode of the global background image. Valid values:

• 0: scales the background image proportionally to fit the view, with black bars displayed.

• 1 (default): crops the background image to fit the view.

URL

String

No

yourImageUrl

The URL of the global background image.

AudioOnly

String

No

false

Specifies whether the output stream is an audio-only stream. Valid values:

• true: The output stream is an audio-only stream. If you set this parameter to true, you need to configure only audio-related parameters under EncodeParams.

• false (default): The output stream is not an audio-only stream. If you set this parameter to false, you need to configure all parameters under EncodeParams, except the VideoCodec and EnhancedParam parameters.

AudioBitrate

String

No

128

The bitrate of the audio. Valid values: [8,500]. Unit: Kbit/s.

AudioChannels

String

No

2

The number of sound channels. Valid values: 1 and 2.

AudioSampleRate

String

No

44100

The audio sampling rate. Valid values: 8000, 16000, 32000, 44100, and 48000. Unit: Hz.

VideoCodec

String

No

H.264

The video codec. Valid values:

• H.264 (default)

• H.265

VideoBitrate

String

No

3500

The bitrate of the video. Valid values: [1,10000]. Unit: Kbit/s.

VideoFramerate

String

No

25

The frame rate of the video. Valid values: [1,60]. Unit: frames per second (FPS).

VideoGop

String

No

20

The group of pictures (GOP) size of the video. Valid values: [1,60].

VideoHeight

String

No

1000

The height of the video. Valid values: [0,1920]. Unit: pixels.

VideoWidth

String

No

1920

The width of the video. Valid values: [0,1920]. Unit: pixels.

EnhancedParam

String

No

{"profile": "high", "preset": "veryfast"}

The parameter used for encoding enhancement, which is a JSON string. The parameter includes the optional profile and preset fields.

• profile: the encoding level. If the video codec is H.264, the valid values of this field are baseline, main, and high. If the video codec is H.265, the valid value of this field is main.

• preset: adjusts the trade-off between encoding speed and video quality. The valid values of this field are ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow, and placebo. Each value specifies a level of trade-off between encoding speed and video quality. For example, the ultrafast preset has the fastest encoding speed but the lowest video quality, while the placebo preset sacrifices the encoding speed for the best video quality.

SourceType

String

No

camera

The type of the video source that is subscribed to. This parameter is valid only when you set StreamType to 2. Valid values:

• camera (default)

• shareScreen

StreamType

String

No

0

The type of the relayed stream that is subscribed to. Valid values:

• 0 (default): original stream

• 1: only the audio track

• 2: only the video track

ChannelId

String

No

yourChannelId

The ID of the channel where the subscribed user is. If the user is in the same channel, you can leave this parameter empty. We recommend that you specify this parameter when you perform stream mixing across channels.

UserId

String

Yes

yourSubUserId

The ID of the subscribed user.

FollowIdr

String

No

0

Specifies whether to include the SEI in an Instantaneous Decoder Refresh (IDR) frame. Valid values:

• 0: does not include the SEI.

• 1: includes the SEI.

Interval

String

No

1000

The interval at which the SEI is sent. Valid values: [1000,5000]. Unit: milliseconds.

FollowIdr

String

No

0

Specifies whether to include the SEI in an IDR frame. Valid values:

• 0: does not include the SEI.

• 1: includes the SEI.

Interval

String

No

1000

The interval at which the SEI is sent. Valid values: [1000,5000]. Unit: milliseconds.

PayloadContent

String

No

yourPayloadContent

The payload content of the SEI.

PayloadContentKey

String

No

yourPayloadContentKey

The key of the payload content of the SEI. If you do not specify this parameter, the default value udd is used.