How does the mini program receive SEI messages?

To receive SEI (Supplemental Enhancement Information) messages in a mini program, developers typically utilize WebRTC (Web Real-Time Communication) technologies. SEI messages are part of the video encoding process and can be used to transmit additional information alongside the video stream, such as timestamps, watermarks, or other metadata.

Here's a basic explanation and example of how a mini program can receive SEI messages:

Explanation:

1. WebRTC Setup: The mini program needs to establish a WebRTC connection with a server or another peer. This connection allows for the exchange of real-time media data, including video frames and associated SEI messages.
2. Video Decoder: When the video stream is decoded, the decoder can extract SEI messages embedded within the video frames.
3. Event Handling: The mini program must implement event handlers to process these SEI messages as they are received.

Example:

Imagine a mini program that displays live sports highlights with real-time score updates. The video stream from the server includes SEI messages containing score changes. As the mini program decodes each video frame, it also checks for SEI messages. If an SEI message is detected, the program updates the score displayed on the screen.

Tencent Cloud Services Recommendation:

For implementing such functionality, developers can leverage Tencent Cloud's Real-Time Communication (TRTC) service. TRTC provides a robust set of APIs and SDKs that simplify the process of setting up WebRTC connections and handling real-time media data, including SEI messages. This allows developers to focus on enhancing the user experience without delving deeply into the complexities of real-time communication technologies.

By using TRTC, developers can ensure a smooth and efficient integration of SEI message handling into their mini programs, enabling advanced features like real-time updates and interactive experiences.