Lazy HLS muxing keeps camera ingest and archive recording running, but starts the HLS muxer only when someone requests a playlist. In a simulation described by Habr author RUSEGAL, that approach used nearly five times less CPU when viewers were idle than when HLS viewers and recording were active. The result is specific to the author’s test, not a verified 80% saving for every video server.
What “lazy muxing” changes
A video server can treat ingest, recording, and HLS packaging as separate jobs. In the design described by RUSEGAL for RUSEON Core, the camera’s RTSP stream continues to be ingested and recorded whether or not anyone is watching. HLS packaging is optional: the server creates a muxer when a viewer requests a playlist, then stops it after more than 60 seconds without a request.
As an Amazon Associate I earn from qualifying purchases.
The distinction matters because stopping HLS packaging is not the same as stopping the camera feed or archive. The author’s concise description is “Архив – постоянный, HLS – временный” (“Archive is permanent, HLS is temporary,” translated from Russian).
How the viewer-driven lifecycle works
Keep ingest and archive recording active
Incoming frames feed a ring buffer. The recorder subscribes to that buffer and writes the archive continuously. This path does not depend on whether there are HLS viewers.
#1 Best Overall
- 【Innovative Product with Leading Technology】- Equipped with an advanced H.265 /H.264 dual encoding chip, supports 4K UHD (3840x2160) video input and output, with a maximum frame rate of 30fps at 4K resolution and up to 120fps at 2K and lower resolutions, delivering a smooth and detailed visual experience. It also supports HDCP 1.4 decryption, easily decoding various HDMI ultra HD video sources, delivering a cinematic visual experience for both professional live streaming and 4K ultra HD content transmission.
- 【Multi-protocol and Multi-platform Compatibility】- Fully compatible with streaming protocols such as HTTP, RTSP, RTMP(S), SRT, HLS(M3U8), MP4, Multicast(UDP, RTP, PTL), FLV, WebRTC, TRTC, ICECAST, it can simultaneously output 4 video streams with different protocols and push them to live streaming platforms such as YouTube, Facebook, Twitch, and Vimeo with one click. Simultaneous live streaming across multiple platforms can be achieved without additional equipment.
- 【Highly Customizable Settings to Meet Individual Needs】- It supports adding static text, scrolling captions, brand logos, and timestamps. Users can freely adjust core parameters such as video resolution, frame rate, and bitrate, and also perform personalized editing functions such as video cropping, rotation, flipping, and mirroring. It supports dual input of HDMI embedded audio and line-in audio, with adjustable sound quality, making your live stream content more distinctive and allowing you to create a unique brand live stream style.
- 【Stable and Efficient Transmission, Easy Operation】- Employing HDMI to Ethernet core connection technology, it ensures stable and reliable network transmission with low latency and no lag, adapting to various network environments. Equipped with an intuitive user interface and detailed instruction manual, no professional technical background is required; setup can be completed quickly after connecting the device. It is also compatible with multiple terminals such as computers and mobile phones for management, and the video stream status can be viewed in real time via a URL.
- 【Lifetime Free Warranty and Technical Supports】- All URayCoder video codecs come with a lifetime free warranty and technical supports, supporting secondary development and feature customization to meet enterprise-level personalized needs. Meanwhile, we providing many kinds of customization services such as shell pattern printing, logo addition, hardware and function development, ensuring reliable quality and worry-free after-sales service.
Start packaging when a playlist is requested
When a client requests an HLS playlist, the server creates a muxer that packages the incoming video into HLS segments. While clients continue to request playlists, the muxer remains active.
Stop the muxer after viewers disappear
In the implementation sketch, the muxer stops when no request has arrived for more than 60 seconds. The timeout is a grace period, not a universal HLS setting: a production server would need to choose a value appropriate to its clients and request patterns.
Rank #2
- ⭐【Innovative Product with Leading Technology】- Equipped with an advanced H.265/H.264 dual encoding chip, supports 1920x1080 resolution input and output, achieving 60fps high-definition presentation with realistic and delicate color reproduction and lossless detail. It also supports HDCP 1.4 decryption, easily decoding various HDMI high-definition video sources, delivering a cinematic visual experience for both professional live streaming and high-definition content transmission.
- ⭐【Multi-protocol and Multi-platform Compatibility】- Fully compatible with streaming protocols such as HTTP, RTSP, RTMP(S), SRT, HLS(M3U8), MP4, Multicast(UDP, RTP, PTL), ONVIF, FLV, it can simultaneously output 4 video streams with different protocols and push them to live streaming platforms such as YouTube, Facebook, Twitch, and Vimeo with one click. Simultaneous live streaming across multiple platforms can be achieved without additional equipment.
- ⭐【Highly Customizable Settings to Meet Individual Needs】- It supports adding static text, scrolling captions, brand logos, and timestamps. Users can freely adjust core parameters such as video resolution, frame rate, and bitrate, and also perform personalized editing functions such as video cropping, rotation, flipping, and mirroring. It supports dual input of HDMI embedded audio and line-in audio, with adjustable sound quality, making your live stream content more distinctive and allowing you to create a unique brand live stream style.
- ⭐【Stable and Efficient Transmission, Easy Operation】- Employing HDMI to Ethernet core connection technology, it ensures stable and reliable network transmission with low latency and no lag, adapting to various network environments. Equipped with an intuitive user interface and detailed instruction manual, no professional technical background is required; setup can be completed quickly after connecting the device. It is also compatible with multiple terminals such as computers and mobile phones for management, and the video stream status can be viewed in real time via a URL.
- ⭐【Lifetime Free Warranty and Technical Supports】- All URayCoder video codecs come with a lifetime free warranty and technical supports, supporting secondary development and feature customization to meet enterprise-level personalized needs. Meanwhile, we providing many kinds of customization services such as shell pattern printing, logo addition, hardware and function development, ensuring reliable quality and worry-free after-sales service.
How the design aims to avoid slow startup
A muxer created on demand cannot necessarily produce a useful segment immediately. If it waits for the next keyframe from the live stream, startup may be delayed by the camera’s keyframe interval. The proposed approach uses recent frames retained in the ring buffer: the new muxer reads history and starts at a keyframe, rather than waiting only for the next keyframe to arrive.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitchesThis trades memory for faster startup. A camera with long gaps between keyframes may require retaining more history to find a recent keyframe and provide useful startup content. The described implementation favors a limited buffer and frequent keyframes, so its startup behavior should not be assumed to fit every camera configuration.
Rank #3
- ⭐【Innovative Product with Leading Technology】- Equipped with an advanced H.265 /H.264 dual encoding chip, supports 4K UHD (3840x2160) video input and output, with a maximum frame rate of 30fps at 4K resolution and up to 120fps at 2K and lower resolutions, delivering a smooth and detailed visual experience. It also supports HDCP 1.4 decryption, easily decoding various HDMI ultra HD video sources, delivering a cinematic visual experience for both professional live streaming and 4K ultra HD content transmission.
- ⭐【Multi-protocol and Multi-platform Compatibility】- Fully compatible with streaming protocols such as HTTP, RTSP, RTMP(S), SRT, HLS(M3U8), MP4, Multicast(UDP, RTP, PTL), ONVIF, FLV, WebRTC, TRTC, ICECAST, it can simultaneously output 4 video streams with different protocols and push them to live streaming platforms such as YouTube, Facebook, Twitch, and Vimeo with one click. Simultaneous live streaming across multiple platforms can be achieved without additional equipment.
- ⭐【Highly Customizable Settings to Meet Individual Needs】- It supports adding static text, scrolling captions, brand logos, and timestamps. Users can freely adjust core parameters such as video resolution, frame rate, and bitrate, and also perform personalized editing functions such as video cropping, rotation, flipping, and mirroring. It supports dual input of HDMI embedded audio and line-in audio, with adjustable sound quality, making your live stream content more distinctive and allowing you to create a unique brand live stream style.
- ⭐【Stable and Efficient Transmission, Easy Operation】- Employing HDMI to Ethernet core connection technology, it ensures stable and reliable network transmission with low latency and no lag, adapting to various network environments. Equipped with an intuitive user interface and detailed instruction manual, no professional technical background is required; setup can be completed quickly after connecting the device. It is also compatible with multiple terminals such as computers and mobile phones for management, and the video stream status can be viewed in real time via a URL.
- ⭐【Lifetime Free Warranty and Technical Supports】- All URayCoder video codecs come with a lifetime free warranty and technical supports, supporting secondary development and feature customization to meet enterprise-level personalized needs. Meanwhile, we providing many kinds of customization services such as shell pattern printing, logo addition, hardware and function development, ensuring reliable quality and worry-free after-sales service.
What the reported CPU result does—and does not—show
RUSEGAL describes a simulation of 100 cameras at approximately 30 frames per second. The comparison was between a run with active HLS viewers plus recording and a run with idle viewers and recording only. The author reports that CPU use fell nearly fivefold when HLS muxers were inactive. That is the basis for describing the result as roughly an 80% reduction in that scenario.
The figure is an author-reported test result, not an independently reproduced benchmark. The available account does not provide a reproducible CPU baseline or the full hardware and software configuration needed to compare runs elsewhere. Camera count and frame rate alone do not establish what another system will save: workload, implementation, encoding or packaging choices, and the number of active viewers can all affect CPU demand.
Rank #4
- 【Innovative Product with Leading Technology】- Equipped with an advanced H.265 /H.264 dual encoding chip, supports 4K UHD (3840x2160) video input and output, with a maximum frame rate of 30fps at 4K resolution and up to 120fps at 2K and lower resolutions, delivering a smooth and detailed visual experience. It also supports HDCP 1.4 decryption, easily decoding various HDMI ultra HD video sources, delivering a cinematic visual experience for both professional live streaming and 4K ultra HD content transmission.
- 【Multi-protocol and Multi-platform Compatibility】- Fully compatible with streaming protocols such as HTTP, RTSP, RTMP(S), SRT, HLS(M3U8), MP4, Multicast(UDP, RTP, PTL), ONVIF, FLV, WebRTC, TRTC, ICECAST, it can simultaneously output 4 video streams with different protocols and push them to live streaming platforms such as YouTube, Facebook, Twitch, and Vimeo with one click. Simultaneous live streaming across multiple platforms can be achieved without additional equipment.
- 【Highly Customizable Settings to Meet Individual Needs】- It supports adding static text, scrolling captions, brand logos, and timestamps. Users can freely adjust core parameters such as video resolution, frame rate, and bitrate, and also perform personalized editing functions such as video cropping, rotation, flipping, and mirroring. It supports dual input of HDMI embedded audio and line-in audio, with adjustable sound quality, making your live stream content more distinctive and allowing you to create a unique brand live stream style.
- 【Stable and Efficient Transmission, Easy Operation】- Employing HDMI to Ethernet core connection technology, it ensures stable and reliable network transmission with low latency and no lag, adapting to various network environments. Equipped with an intuitive user interface and detailed instruction manual, no professional technical background is required; setup can be completed quickly after connecting the device. It is also compatible with multiple terminals such as computers and mobile phones for management, and the video stream status can be viewed in real time via a URL.
- 【Lifetime Free Warranty and Technical Supports】- All URayCoder video codecs come with a lifetime free warranty and technical supports, supporting secondary development and feature customization to meet enterprise-level personalized needs. Meanwhile, we providing many kinds of customization services such as shell pattern printing, logo addition, hardware and function development, ensuring reliable quality and worry-free after-sales service.
Use the result as evidence that idle HLS packaging may be worth avoiding—not as a promised saving. To assess a deployment, measure CPU with recording held constant while comparing representative viewer-active and viewer-idle periods on the same system.
How this differs from source-level on-demand video
RUSEGAL’s article contrasts this design with an approach it attributes to Flussonic: separating ingest, DVR/archive, and just-in-time packaging, while using “on-demand” for the source lifecycle. In the RUSEON design described by the author, it is specifically the HLS muxer that is demand-driven; ingest and recording remain active. This is a conceptual comparison from the article, not a current, independently checked comparison of products.
Quick Recap
Best Value
- 【Innovative Product with Leading Technology】- This URayCoder IP video decoder is ideal for decoding multiple types of video streams, support multi-brand video encoders and set-top boxs as well as IP camera decoding.
- 【Simple Setup】- Enter the link address of the video stream in the configuration interface of video decoder, the output video will be automatically displayed on the display.
- 【Multi-channel Decoding】- Support multi video streams decoding and output simultaneously. Max support 4 channels decoding and output at the same time.
- 【Multi-protocol Supporting】- Support HTTP(S), RTSP, RTMP, SRT, HLS(M3U8), UDP, RTP, Multicast, Unitcast, FLV, ONVIF etc streaming protocol decoding.
- 【4K UHD Resolution】- 4K UHD video input and output are supported. The output video resolution can be selected, up to 3840x2160P@30fps output.
What to evaluate before adopting the pattern
- Recording continuity: Confirm that the recorder consumes the ingest or ring-buffer path independently of the HLS muxer.
- Startup latency: Test playlist requests against the cameras’ actual keyframe cadence, including cameras with longer intervals.
- Buffer memory: Determine how much recent history must be retained to find a usable keyframe and how that scales across cameras.
- Idle definition: Select and validate a muxer timeout that tolerates normal client request gaps without leaving packaging active unnecessarily.
- CPU measurement: Compare active-viewer and idle-viewer periods under the same recording load, while documenting hardware, software, camera settings, and viewer activity.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
