- What's New
- Product Bulletin
- Service Overview
- Getting Started
- Best Practices
- User Guide
-
API Reference
- Before You Start
- API Overview
- Calling APIs
- Examples
- OBS Bucket Management
- Application callback management
- Single stream recording job management
- Application management
- Automatic recording configuration
- Room management
- Mixed stream recording job management
- Recording rule management
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Statistical Analysis
- Listing Rooms
- Listing Users
- Querying Real-Time Scale Data
- Querying Real-Time Scale Data Distribution
- Querying Real-Time Quality Data
- Querying Real-Time Network Data
- Querying Usage
- Querying Historical Scale Data
- Querying Historical Quality Data
- Querying User Call Indicators
- Querying Details
- Querying User Experience Exception Events (RCMS Service)
- Queries abnormal user experience events.
- Queries the distribution of users with abnormal events.
- Appendix
- Change History
-
SDK Reference
- Before You Start
- SDK Overview
-
Web SDK
- Browser Adaptation
- Preparations
- SDK Usage
- Basic Usage Logic
-
API Reference
- Main Entry (HRTC)
- Client Object (Client)
- Client Event Notification (ClientEvent)
- Stream Object (Stream)
- Local Stream Object (LocalStream)
- Remote Stream Object (RemoteStream)
- Stream Event Notification (RTCStreamEvent)
- Error Code (RtcError)
- Error Codes Reported on the Client
- Server Error Codes
- Granting the Permissions of Accessing Cameras or Microphones to a Browser
- FAQ
- Change History
- Access Authentication
- Appendix
-
FAQs
-
About SparkRTC
- What Is SparkRTC?
- What Are the Differences Between Real-Time Audio and Video and Livestreaming?
- Can SparkRTC Be Used Outside China?
- What Is SparkRTC RoomID and How Can I Name One?
- How Many Rooms Can Be Created in SparkRTC at Most at a Time?
- What Is SparkRTC UserID and How Can I Name One?
- What Are the Roles of SparkRTC?
- How Many Participants Are Allowed by SparkRTC in a Video Call?
- What Is the Latency of SparkRTC?
- Does SparkRTC Support Co-Hosting?
- Does SparkRTC Support Bidirectional Desktop Stream Push?
- Does SparkRTC Support Private Deployment?
- Does SparkRTC Support USB Cameras on PCs?
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Billing
- When I Subscribe to SparkRTC Video and Audio Services, Is the Video Charged by Resolution Plus the Audio Charge?
- Does the Billing Vary with Bitrates When There Are Only Audios?
- How Do I View Bills and Fee Deduction Details?
- Can I Use the Postpaid Billing Mode?
- Why Am I Charged Even When There Is Only One Person in the Room and There Is No Audio/video Call?
- Signature
- Recording
-
SDK Usage
- Is Video Snapshot Capturing Supported?
- How Do I Create a Room?
- Why Can't the SparkRTC Apps Running on Two Mobile Phones Communicate with Each Other?
- How and When Is Authentication Signature Generated?
- Why Does the Program Crash when the onVideoStats, onAudioStatus, or onSubStreamStats Callback Is Triggered?
- Why Can I Hear My Own Voice from the Local Receiver?
- Can I Call setExternalAudioCapture, setExternalVideoCapture, or setExternalMediaFrameOutput After Entering a Room?
- Does SparkRTC Support Video Mirroring?
- How Do I Obtain Data Such as the Uplink and Downlink Bitrates, Resolution, Packet Loss Rate, and Audio Sampling Rate During an Audio/Video Call?
- Can I Set the Call Volume of a Local User? Can I Set the Playback Volume of Each Remote User?
- What Is the Difference Between enableLocalVideo and muteLocalVideo?
- What Is the Difference Between enableLocalAudioStream and muteLocalAudio?
- Does SparkRTC Support Permission Verification for Rooms?
- Does the PC Support Screen Sharing?
- Does SparkRTC Allow Others Users to View a Local Video During Real-Time Communications?
- Can I View Only Real-Time Audio Streams on SparkRTC?
- Can More Than One Presentation Stream Be Shared in a Room?
- Does SparkRTC Support 1080p?
- Can I Play Online Music for Background Music?
- Can I Create N RTC Objects on the Same Page and Log In to N Rooms Using N User IDs?
- Is the Streaming Resolution (Width and Height) on the Web Client Applicable to All Browsers?
- How Do I Clear Data in the Camera List After a Camera Is Removed from the SDK on the Web Client?
- Can the SDK on the Web Client Obtain the Current Volume?
- Can I Receive Notifications on a Web Client When a Remote User Leaves a Room?
- Why Is There Echo, Undesired Sound, Noise, or Low Volume During a Call on the Web Client?
- How Do I Switch to Another Camera or Microphone on the Web Client?
- Does SparkRTC Support the Whiteboard Function?
- Can I Enter Multiple Rooms with the Same User ID?
- How Long Is the Lifecycle of a Room on SparkRTC?
- Can I Use Bluetooth Headsets for Video Calls on SparkRTC?
- Can I Subscribe to Only Audio of 2/3/4 Participants During a Video Call?
- Will the Resolution of the Video Stream Change When the Size of a Specified Shared Window Changes?
- Can I Switch Between the Floating Window and Large and Small Windows During a Video Call?
- Can I Use the API for Sending Customized Messages to Implement Functions Such as Chat Rooms and On-Screen Comments?
- Can I Query All User IDs?
- Why Can't I Call the checkSystemRequirements API in the Web SDK?
-
Troubleshooting
- Why Can't I Hear When Joining a Meeting?
- Why Does Video Freezing Occur?
- What Do I Do If a Black Screen Occurs During Video Playback?
- Why Can't I Use the Camera?
- Why Can't I Join Another Room?
- What Do I Do If No Recording File Is Generated After SparkRTC Enables Cloud Recording?
- Why Can't I Join a Room?
-
About SparkRTC
- General Reference
Show all
SparkRTC
Huawei Cloud SparkRTC is ideal for a broad array of scenarios, such as social entertainment, online education, and virtual conferencing. The service is the long-term cumulation of Huawei's technical expertise in real-time communications. It provides high-concurrency and smooth HD audio/video while ensuring high reliability and stability.
Progressive Knowledge
SparkRTC knowledge for users from beginner level to expert level
01
![](https://support.huaweicloud.com/intl/en-us/rtc/files/6408a53924b4fe2ce61efbe2e6090785.jpg)
Understand
Learn about how SparkRTC works and its features and application scenarios to find the functions that fit your needs.
Service Overview
04
![](https://support.huaweicloud.com/intl/en-us/rtc/files/6408a53924b4fe2ce61efbe2e6090785.jpg)
API
SparkRTC allows calling APIs to manage applications and recordings and analyze data.
Quick Start
API Reference
02
![](https://support.huaweicloud.com/intl/en-us/rtc/files/6408a53924b4fe2ce61efbe2e6090785.jpg)
Start
Huawei Cloud provides SDKs compatible with multiple platforms. You can quickly integrate these SDKs to implement basic SparkRTC functions.
Quick Start
03
![](https://support.huaweicloud.com/intl/en-us/rtc/files/6408a53924b4fe2ce61efbe2e6090785.jpg)
SDK
SparkRTC provides SDKs compatible with multiple platforms. You can integrate these SDKs as required to develop and implement audio and video services.
SDK Reference
FAQs
Learn more about common issues and solutions.
Typical Cases
-
What Are the Differences Between Real-Time Audio and Video and Livestreaming?
-
How Many Participants Are Allowed by SparkRTC in a Video Call?
-
Does SparkRTC Support Co-Hosting?
-
What Is SparkRTC RoomID and How Can I Name One?
-
Why Can't the SparkRTC Apps Running on Two Mobile Phones Communicate with Each Other?
-
What Are the Roles of SparkRTC?