Product Overview

Last updated:2026-03-17 16:55:39

Product Overview

Last updated: 2026-03-17 16:55:39

This product is the class version of Mobile Live Video Broadcasting (MLVB). It provides basic live streaming and playback capabilities.
In this document and subsequent documentation, the class product will be referred to as Mobile Live Video Broadcasting (MLVB).
Note：
In the Mobile Live Video Broadcasting Product Overview, the live stream SDK Tencent RTC Live is the next gen solution for MLVB. It extends the original capabilities with integrated multi-guest interaction, chat, gifting, and a complete UI, enabling faster and easier live streaming integration. 
Basic features
Feature Support: Live stream publishing, mic connect, anchor PK, and playback.
Platform Support: Web/H5, iOS, Android, Flutter.
For a better product function and performance experience, it is advised to combine with Tencent Cloud Streaming Services.
Use Cases
MLVB SDK is ideal for show live, live shopping, sports streaming, new product launches, roadshows, online auctions, and other large-scale, high-concurrent live viewing device applications.
Core features
Feature
Description
Use Cases
Live stream publishing
Publish live streams using RTMP or RTC, with increased adaptability to network fluctuations and faster transmission speed that help deliver a reliable and low-latency publishing experience.
Publishing
Live playback
Play RTMP, FLV, HLS, DASH, or WebRTC streams. Smooth and HD viewing experience.
Live stream watching
Mobile (game) screen recording
Stream the host’s phone screen and camera video at the same time.
Game streaming, mobile presentation
Details
Module
Feature
Description
Video capturing
Capturing parameters
Resolution, frame rate, audio sample rate, GOP, bitrate, etc.
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Aspect ratio
Capture videos in the aspect ratio of 16:9, 4:3, or 1:1.
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Orientation
Publish streams in portrait mode, landscape left mode, or landscape right mode.
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Video quality selection
SD, HD, or FHD.
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Flashlight
Turn on/off the flashlight.
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Camera switch and zoom
Switch between the front and rear cameras and zoom in or out.
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Auto and manual focus
Turn on/off auto and manual focus.
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Photo taking
Take photos.
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Video flipping
Horizontally flip the camera video or the published video. The front camera is flipped by default.
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Watermarking
Add watermarks to captured videos.
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Screenshot
Take a screenshot of the phone screen.
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Pausing audio/video
Pause audio or video during live streaming.
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Filters
Add custom filters and adjust the filter strength.
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Basic beautification
Smooth skin, brightening, and rosy skin.
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Advanced beautification
(value-added capability)
Apply effects including big eyes, slim face, V shape, slim chin, short face, and slim nose, and adjust the strength. This is a value-added capability, and if needed, you can purchase the Tencent Effect SDK. 
Audio capturing
Background music
Select a local MP3 file as the background music before capturing.
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Pitch change
Change the music pitch.
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Audio mix
Mix voice and music audio with independent volume adjustment.
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In-ear monitoring
When earphones (wired or wireless) are used, the user can hear the audio captured by their local mic in their own earphones.
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Stereo
Recreate multi-directional and 3D sounds using dual-channel audio.
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AI-based noise suppression
Built-in noise suppression is based on a psychoacoustic model and can increase the signal-to-noise ratio by more than 20 dB without compromising the sound quality.
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Voice change
Voice changing effects such as girl and man.
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Reverb
Reverb effects, which can be used together with voice changing to produce various sound effects.
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Muting
Disable the mic during capturing to publish only video images.
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Auto volume adjustment
The SDK can adjust the volume automatically depending on ambient sound.
Live stream publishing
RTMP publishing*
Publish 180-1080p videos using RTMP or RTMPS.
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WebRTC publishing
Publish streams using WebRTC.
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SRT publishing
Publish streams using SRT.
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QUIC publishing
Publish streams using QUIC.
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Publishing from screen
Publish a stream containing content captured from the screen.
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SEI messages
Insert text data as SEI (Supplemental Enhancement Information) into the audio/video stream. The information is published by the host and received by audience members. This allows you to show text information in sync with audio/video content.
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Adaptive bitrate
The SDK can automatically adjust the bitrate (multiple control modes supported) according to network conditions to deliver a smoother streaming experience.
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Audio-only push
Capture and publish audio-only streams, which helps you save bandwidth costs.
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External publishing source
Publish from an external source.
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Auto reconnection
The SDK can automatically reconnect after a disconnection occurs.
Live playback
RTMP playback
Play RTMP streams.
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FLV playback
Play FLV streams.
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HLS playback
Play HLS streams.
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DASH playback
Play DASH streams.
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WebRTC playback
Play WebRTC streams.
Note：
RTMP publishing: Use the Tencent Cloud Streaming Services(CSS) for publishing by default. The domain of publishing URL should be a CSS push domain.

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Feature	Description	Use Cases
Live stream publishing	Publish live streams using RTMP or RTC, with increased adaptability to network fluctuations and faster transmission speed that help deliver a reliable and low-latency publishing experience.	Publishing
Live playback	Play RTMP, FLV, HLS, DASH, or WebRTC streams. Smooth and HD viewing experience.	Live stream watching
Mobile (game) screen recording	Stream the host’s phone screen and camera video at the same time.	Game streaming, mobile presentation

Module	Feature	Description
Video capturing	Capturing parameters	Resolution, frame rate, audio sample rate, GOP, bitrate, etc.
		Aspect ratio	Capture videos in the aspect ratio of 16:9, 4:3, or 1:1.
		Orientation	Publish streams in portrait mode, landscape left mode, or landscape right mode.
		Video quality selection	SD, HD, or FHD.
		Flashlight	Turn on/off the flashlight.
		Camera switch and zoom	Switch between the front and rear cameras and zoom in or out.
		Auto and manual focus	Turn on/off auto and manual focus.
		Photo taking	Take photos.
		Video flipping	Horizontally flip the camera video or the published video. The front camera is flipped by default.
		Watermarking	Add watermarks to captured videos.
		Screenshot	Take a screenshot of the phone screen.
		Pausing audio/video	Pause audio or video during live streaming.
		Filters	Add custom filters and adjust the filter strength.
		Basic beautification	Smooth skin, brightening, and rosy skin.
		Advanced beautification (value-added capability)	Apply effects including big eyes, slim face, V shape, slim chin, short face, and slim nose, and adjust the strength. This is a value-added capability, and if needed, you can purchase the Tencent Effect SDK.
Audio capturing	Background music	Select a local MP3 file as the background music before capturing.
		Pitch change	Change the music pitch.
		Audio mix	Mix voice and music audio with independent volume adjustment.
		In-ear monitoring	When earphones (wired or wireless) are used, the user can hear the audio captured by their local mic in their own earphones.
		Stereo	Recreate multi-directional and 3D sounds using dual-channel audio.
		AI-based noise suppression	Built-in noise suppression is based on a psychoacoustic model and can increase the signal-to-noise ratio by more than 20 dB without compromising the sound quality.
		Voice change	Voice changing effects such as girl and man.
		Reverb	Reverb effects, which can be used together with voice changing to produce various sound effects.
		Muting	Disable the mic during capturing to publish only video images.
		Auto volume adjustment	The SDK can adjust the volume automatically depending on ambient sound.
Live stream publishing	RTMP publishing*	Publish 180-1080p videos using RTMP or RTMPS.
		WebRTC publishing	Publish streams using WebRTC.
		SRT publishing	Publish streams using SRT.
		QUIC publishing	Publish streams using QUIC.
		Publishing from screen	Publish a stream containing content captured from the screen.
		SEI messages	Insert text data as SEI (Supplemental Enhancement Information) into the audio/video stream. The information is published by the host and received by audience members. This allows you to show text information in sync with audio/video content.
		Adaptive bitrate	The SDK can automatically adjust the bitrate (multiple control modes supported) according to network conditions to deliver a smoother streaming experience.
		Audio-only push	Capture and publish audio-only streams, which helps you save bandwidth costs.
		External publishing source	Publish from an external source.
		Auto reconnection	The SDK can automatically reconnect after a disconnection occurs.
Live playback	RTMP playback	Play RTMP streams.
		FLV playback	Play FLV streams.
		HLS playback	Play HLS streams.
		DASH playback	Play DASH streams.
		WebRTC playback	Play WebRTC streams.

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Basic features

Use Cases

Core features

Details