In just two weeks, the online doll-capturing industry has transformed from a quietly profitable business into a trending phenomenon. It has evolved from a hardware-focused model to a software-driven architecture, shifting from profit-driven operations to investment-based strategies and from traditional management to aggressive promotion. H5-based doll capturing—specifically mobile web and WeChat-based doll catching—still remains somewhat of an enigma.
Is H5 doll capturing really that mysterious? This article aims to give you a comprehensive breakdown of the process.
1. What exactly is H5 doll capturing?
H5 doll capturing refers to web-based doll catching that supports HTML5 technology. It can be divided into two main types: PC-based and mobile-based. On the PC side, it’s possible to use the Agora Web SDK as long as the browser supports WebRTC. Alternatively, developers can build their own WebRTC solution, addressing server-side transmission, device compatibility, echo cancellation, and availability issues. The PC-side H5 doll capture has already reached a very mature stage.
On the mobile side, the situation is more complex. Mobile H5 doll capturing typically refers to either a mobile web browser or a WeChat webpage. Most doll manufacturers aim to capture dolls on the WeChat promotional page rather than other mobile browsers. As a result, when people refer to "H5 doll capturing," they usually mean the experience within the WeChat browser. For simplicity, we'll call this "WeChat H5" in the following discussion.
2. How does WeChat H5 differ from a Native App?
Currently, most PC-based H5 doll capturing uses WebRTC, which is well-supported by most modern browsers. However, the built-in browser in WeChat does not support WebRTC.
The diagram above illustrates the general flow of real-time video streaming for doll capturing. In the context of a doll-catching business, the system relies on a motherboard or PC connected to the doll machine, with the rendering and playback handled by the operation end. The only difference between WeChat H5 and a Native App is the operating interface—the former uses the WeChat browser, while the latter uses a dedicated app.
3. How is WeChat H5 doll capturing implemented?
To uncover the mystery behind WeChat H5 doll capturing, let's take a look at the solution provided by Sound Network using Agora's H5 platform.
As previously mentioned, the key challenge in WeChat H5 is playing the video stream on the console. Sound Network solves this by using JSMpeg, a JavaScript-based video player that includes an MPEG splitter, MPEG1 video and MP2 audio decoder, WebGL and Canvas2D rendering, and WebAudio sound output. JSMpeg is lightweight and works well across most browsers, even decoding 720P video at 30fps on an iPhone 5S.
Since JSMpeg only supports MPEG1 format, a transcoding server is used to convert the video into that format before sending it through a relay server to the WeChat browser. The rest of the process follows the same structure as non-WeChat H5 solutions.
At the doll machine end, two cameras are connected via a motherboard or PC to collect video data. The video stream is optimized using Agora’s proprietary encoder and transmitted in real-time over Agora’s global SD-RTN™ network. The video is then decoded and played on the user's device.
The operation terminal sends control commands to the doll machine through a service server and receives real-time feedback via the video stream. A high-latency RTMP stream can also be delivered to viewers through SD-RTNâ„¢.
From the technical architecture, it's clear that WeChat H5 doll capturing relies on mature open-source projects, which is how most mainstream H5 doll capturing solutions operate today. But what about the actual user experience?
4. What Determines the User Experience Between WeChat H5 and Native Apps?
The key aspects of the doll-capturing experience include:
- **Latency**
- **Availability**
- **Service Stability**
**Latency** refers to the delay between the operator's command and the doll machine, as well as the video delay from the doll machine to the operator. While command latency is typically just a few milliseconds, video latency is critical. If the video delay stays under 400ms, users can generally tolerate it. Balancing video quality and latency is essential, as higher clarity often means higher bit rates and increased delay.
Sound Network uses a proprietary codec to minimize bit rate while maintaining clarity. Features like packet retransmission, FEC, bandwidth detection, and dynamic bit rate adjustment help ensure a smooth experience even in poor network conditions.
**Availability** is another key factor. According to Callstats.io, 89% of WebRTC-based communication succeeds in the U.S., but Sound Network’s SD-RTN™ network, with its dense regional node deployment, boosts success rates to 99%.
**Service stability** ensures consistent performance. A stable 400ms delay provides a better user experience than fluctuating delays (e.g., 200ms one moment, 800ms the next).
Ultimately, the success of online doll capturing depends on user experience. Companies that prioritize quality and reliability will thrive in the long run. Sound Network’s online doll-capturing solution has been adopted by major brands such as Wow, Dolls, Happy Catching, Music Catching, Second Catching, Catch a Lot, Screaming Cool, Love Catching, Catching Chickens, and many others. It’s now the standard for most leading manufacturers in the industry.
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Xuzhou Jitian Intelligent Equipment Co. Ltd , https://www.jitianintelligent.com