💡 At a Glance
Managing video streaming latency in Coram involves understanding different streaming protocols, recognizing factors that contribute to delays, and applying best practices to optimize performance. By comparing HTTP Live Streaming (HLS) and Web Real-Time Communication (WebRTC), you can choose the appropriate technology for real-time monitoring needs and reduce latency through network and device optimizations.
⚡ Key Tasks
Evaluate Streaming Protocols
Understand the latency differences between HLS (≈5 seconds delay) and WebRTC (≈1 second or less) to select the right one for your operational requirements.
Switch to WebRTC for Lower Latency
If immediate response is critical, enable WebRTC streaming in Coram to minimize delay. Refer to the WebRTC setup guide for configuration details.
Optimize Network and Camera Settings
Use wired connections for stable bandwidth, adjust resolution/bitrate settings to balance quality and delay, and update firmware regularly to incorporate performance improvements.
For detailed information, keep reading below.
Overview
Video streaming latency is the delay between capturing video and displaying it in the Coram web and mobile apps, and can affect the responsiveness and accuracy of your monitoring efforts. By understanding the factors that contribute to latency and the available streaming options, you can make informed decisions to optimize your surveillance system for immediate and efficient responses.
Understanding Streaming Protocols
Coram employs different streaming protocols, each with its own latency characteristics. Choosing the right technology based on your operational needs is crucial for achieving optimal performance.
Name | HTTP Live Streaming (HLS) | Web Real-Time Communication (WebRTC) |
Description | A popular protocol for delivering video content over the internet. It works by breaking the video stream into small segments, typically lasting around 5 seconds each. These segments are then delivered via standard HTTP servers. | Designed for low-latency, real-time video streaming. Unlike HLS, WebRTC facilitates direct peer-to-peer communication, enabling instantaneous transmission of video data. |
Latency | Approximately 5 seconds. | As low as 1 second or less. |
Use-case | Suitable for environments where real-time monitoring is not critical, such as background or reactive surveillance, or recording events for later review. | Ideal for scenarios requiring immediate response, such as live monitoring, operations where there can be imminent threats to safety and security, and interactive surveillance. |
Benefits | High compatibility with various devices and networks, reliable streaming over unstable connections. | Minimal delay, enhanced interactivity, and better suitability for real-time decision-making. |
Drawbacks | The segmenting process involved with HLS introduces a noticeable delay, which may not be suitable for all monitoring requirements. | Often requires more robust network infrastructure and more bandwidth, and may have compatibility issues with older browsers or devices. |
Reducing Latency with WebRTC
If your surveillance operations demand minimal delay, switching from HLS to WebRTC can significantly reduce latency. To learn more about managing WebRTC settings, refer to Enabling WebRTC Streaming.
Best Practices for Minimizing Latency
Optimize Network Performance
Ensure your network infrastructure supports high bandwidth and low latency. Use wired connections where possible to reduce interference and delays.
Configure Camera Settings
Adjust camera resolution and bitrate settings to balance video quality and latency. Lower settings can reduce delay without significantly compromising image clarity.
Regularly Update Firmware
Keep your devices updated with the latest firmware to benefit from performance improvements and optimizations.