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ZEGOCLOUD’s Commitment to Live Streaming Instantaneity and Clarity

ZEGOCLOUD’s Commitment to Live Streaming Instantaneity and Clarity

In an era where immediacy and quality are the benchmarks of digital experiences, live streaming platforms are in a relentless pursuit to deliver content that is not only instant but also of impeccable clarity. ZEGOCLOUD is at the forefront of this technological evolution, introducing breakthrough solutions that address the most pressing challenges in live video streaming. From the moment a user clicks play to the seamless delivery of high-resolution video, ZEGOCLOUD’s advancements are setting new industry standards. Let’s delve into the specifics of these innovations and their impact on the live-streaming experience.

Time to First Frame Optimization for Instant Live Streaming Enjoyment

The journey to a seamless live streaming experience begins with the crucial ‘Time to First Frame’ (TTFF), a metric that captures the essence of speed and responsiveness that audiences demand. ZEGOCLOUD has made significant strides in optimizing TTFF to facilitate instant enjoyment for users as they enter and switch between channels.

Read articles in the same series:

  1. Access Scheduling: Traditional CDNs rely on DNS resolution, lacking customization for optimal performance. ZEGOCLOUD’s bespoke scheduling system connects global users to suitable access points, adapting to individual preferences for lower latency and higher quality streams. For instance, a host streaming from Singapore to Kuala Lumpur would have their stream directly pulled from Singapore, bypassing routing through Kuala Lumpur and averting expenses and delays. This customer-centric scheduling outperforms generic DNS resolution, offering a tailored streaming experience.
  2. Stream Connection: Establishing a robust connection with minimal delay is the next step in ZEGOCLOUD’s optimized process. The technology ensures a swift and stable link between the user’s device and the network, enabling a seamless exchange of high-quality video and audio data.
  3. Source Retrieval: Retrieving the live stream efficiently from the closest and most appropriate server node is vital. By doing so, ZEGOCLOUD minimizes the time taken to deliver the first frame to the viewer, which is critical for maintaining engagement.
  4. Content Playback: Once these steps are completed, users are treated to an immediate playback of the live content, culminating in a viewing experience that is as close to real-time as possible.

ZEGOCLOUD’s scheduling system is not static; it dynamically accounts for varying network conditions, considering factors such as the time of day, carrier networks, content popularity, and geographic locations. This dynamic approach ensures that the best possible access points are provided in real-time, making it a more adaptable and efficient solution than traditional DNS-based methods.

Connection Establishment and Data Retrieval

data retrieval

In the fast-paced digital world, even milliseconds matter. ZEGOCLOUD’s protocol for connection establishment breaks new ground with zero Round-Trip Time (0 RTT), presenting users with the initial screen content after just one RTT. This is a significant enhancement over the traditional TCP three-way handshake.

Regarding data retrieval, the common method is sequential backhauling. ZEGOCLOUD utilizes parallel backhauling. This approach significantly minimizes data acquisition time. It ensures that the overall duration is dictated by the single longest node’s duration, rather than the cumulative time, effectively streamlining the user’s access to content.

Adaptive Buffering Technology

The player is the key to minimizing the TTFF in video streaming. Most open-source players require a preset buffer to be filled before the video can start, which can lead to initial delays or frequent buffering interruptions.

ZEGOCLOUD player, on the other hand, implements adaptive buffering technology that dynamically adjusts the buffer size in response to network conditions, allowing for the immediate decoding and rendering of the video. This means that the TTFF is as soon as the data for the initial frame is received, instead of waiting for the entire buffer to be filled.

the solution before and after optimization

ZEGOCLOUD exclusively employs technology architecture that separates “rooms” and “stream services,” reducing the TTFF and providing faster live streaming room entry and transition experiences. This technology helps to lower the dropout rate during the room entry phase, assisting several clients in achieving growth in retention and revenue metrics.

  • Fast TTFF when entering rooms: Over 95% success rate of TTFF within 2 seconds has already been achieved in Europe, America, and Southeast Asia.
  • Multi-scenario transitions: Seamlessly fits the rapid switching between four scenarios: 1-on-1, live broadcasting, PK (player knockout), and multi-person group chat.
  • Fast TTFF when swiping feeds: Tailored to client business scenarios, simultaneous streaming (push and pull) provides a seamless and high-quality experience.
ttff in various regions

ZEGOCLOUD has deployed edge media services across nearly 200 IDCs globally to ensure optimal access quality for users. In certain overseas regions with complex and variable network quality, ZEGOCLOUD employs a mix of online big data analytics and active user-side probing techniques to identify the most suitable coverage points, thus optimizing access quality. The process includes monitoring for any changes in quality, and should there be a decline, dynamic probing is initiated to adjust the coverage points, maintaining the high standard of live streaming quality.

Link Quality Ensures Live Streaming Clarity and Smoothness

Live streaming quality hinges on link performance. Ideally, a good link should support high resolution and bitrate, enhancing video quality. However, international transmissions often face challenges, such as a 200ms round-trip time (RTT) and up to 30% packet loss on routes from China to Europe.

Traditional CDNs use the TCP protocol, but in environments with high latency and packet loss, TCP cannot meet the requirements for real-time transmission, and even the emerging QUIC protocol struggles to cope. But ZEGOCLOUD’s proprietary technology excels, providing smooth streaming despite up to 70% packet loss and maintaining quality with up to 50% packet loss.

Moreover, ZEGOCLOUD has integrated AI video restoration technology to remove blocky artifacts caused by low bitrates, even on bandwidths as low as 100kbps. Super-resolution technology also ensures high-definition video quality at low bitrates.

zegocloud live streaming sdk


ZEGOCLOUD’s video call SDK and live streaming SDKs offer flexible and efficient solutions to address full-link fluency issues, supporting a variety of business scenarios. You can access multiple services with one integration, such as CDN live streaming, CDN Plus, and L3. These services can be customized for different regions and target audiences through a control panel, APIs, etc., allowing for distinct service settings and a seamless switch to RTC live intercom. This one-stop solution ensures instant TTFF experience, smooth streaming, and ultra-high-definition video quality. Integrate once and enjoy a premium live broadcasting experience!

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