# iReplay.tv blog and glossary

> Articles on OTT streaming, video encoding, players, CDN delivery and broadcast
> technology, written by the engineers at iReplay.tv, plus a glossary of streaming
> terms. Every entry below is linked to a Markdown version of the full text.

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## Articles (194)

- [What is a Media Forward Deployed Engineer? The AI role broadcast and streaming is missing](https://ireplay.tv/blog/media-forward-deployed-engineer-ai-video-audio-streaming.md) (2026-08-06): Defining the Media Forward Deployed Engineer: the Palantir-derived role that finance and defence hired and broadcast did not, why video breaks generic AI pipelines (frame-accurate answers, where the model runs, quality with a signed-off number, unit economics), and five questions that identify a real one.
- [How to Run a 24/7 Worldwide TV Channel with AI and MCP in 2026](https://ireplay.tv/blog/run-24-7-tv-channel-ai-agent-mcp-openclaw-hermes-any-screen.md) (2026-08-01): Running a 24/7 linear channel by describing it to an AI agent: what MCP changed, agents becoming daemons rather than sessions, and the exact configuration for Claude Code, Claude Desktop mcpServers JSON, OpenClaw and Hermes Agent, plus the non-agent iOS, macOS and WordPress routes.
- [MLVC: Microsoft Open-Sourced a Neural Video Codec That Cuts H.265 Bitrate by 75%](https://ireplay.tv/blog/mlvc-microsoft-neural-video-codec-open-source-streaming.md) (2026-07-29): Microsoft open-sourced MLVC on 24 July 2026 at github.com/microsoft/mlvc under MIT. Examines the 87.8% versus H.264 and 75.5% versus H.265 claims: they are MOS scores on 360p webcam content against the weakest hardware H.265, the real achievement is cross-NPU determinism, and none of it fits a streaming ladder yet.
- [How to Get Your Channel on Roku: Direct Publisher, the SDK, or No Developer Account at All](https://ireplay.tv/blog/roku-channels-creating-roku-channel-in-3-easy-steps-m3u8-channel-packaging.md) (2026-07-16): Three routes onto Roku compared by cost: watching inside the My TV Channel app with no developer account, Roku Direct Publisher driven by a JSON content feed rather than a bare m3u8, and a custom Roku SDK channel. Plus building a 24/7 stream and monetizing it.
- [Pause ads: what they are, what they cost, and which of the numbers hold up](https://ireplay.tv/blog/what-is-a-pause-ad-ctv-specs-examples-data.md) (2026-07-16): Reference on the CTV pause ad: a definition, a screenshot from a real player, and a platform-by-platform spec table (YouTube after 10 seconds, Prime Video 1920x1080 with a 196x196 QR, Disney+ 1085x770 transparent PNG, Peacock after 5 seconds). Also which of the widely-quoted effectiveness numbers survive being looked up.
- [Vertical TV Explained, and How to Launch Your Own Channel](https://ireplay.tv/blog/vertical-tv-channel.md) (2026-07-09): What vertical TV actually is, distinct from vertical video and from micro drama, why Netflix, Disney, Paramount and Peacock are shipping 9:16 feeds on purpose, and how to launch your own vertical channel without a studio.
- [From Product Page to Video Ad in Every Format: 16:9, 9:16, 1:1, TV (including FAST) and Cinema](https://ireplay.tv/blog/product-page-to-video-ad-every-format.md) (2026-07-03): Turning a product or service page URL into a ready-to-post video ad in 16:9 (YouTube and connected TV), 9:16 (TikTok, Reels, Shorts), 1:1 and 4K cinema, with a step-by-step, an aspect-ratio reference table, cost guidance, and how designed brand-led ads differ from UGC and avatar tools.
- [The Six CTV Ad Formats IAB Is Standardizing: Pause, Menu, Squeezeback, Overlay, In-Scene and Screensaver](https://ireplay.tv/blog/iab-ctv-ad-formats-pause-menu-squeezeback-overlay-in-scene-screensaver.md) (2026-06-22): The six connected-TV ad formats IAB Tech Lab is standardising in its CTV Ad Portfolio: pause, menu, squeezeback, overlay, in-scene and screensaver. Guidelines opened to public comment in December 2025 with a second window through 16 July 2026, and pause and menu are prioritised for programmatic.
- [How to self-host a FAST or PPV TV channel on WordPress](https://ireplay.tv/blog/wordpress-fast-ppv-tv-channel-self-hosted.md) (2026-05-15): Self-hosting a FAST or PPV channel on WordPress: what 24/7 linear storage costs across shared hosting, VPS, OVHCloud Rise and Advance, Scaleway Dedibox and Elastic Metal, and object storage, why 'unmetered' is the word to look for, plus ad insertion and paywall gating.
- [Multicast ABR (mABR) Explained: How It Works, What It Saves, and the Road to a Common Standard](https://ireplay.tv/blog/multicast-abr-mabr-explained.md) (2026-05-14): Multicast ABR (mABR) explained: how the gateway works, FLUTE, ROUTE and NORM transport, what it saves at scale, and its real limits (added latency, client ecosystem, managed networks only, fragmentation). Includes ETSI TS 103 769, Broadpeak nanoCDN, GPAC and Motion Spell.
- [Self-host any live stream from your Mac, no streaming server or CDN required](https://ireplay.tv/blog/self-host-live-stream-from-mac-no-streaming-server-no-cdn.md) (2026-04-29): Self-hosting a live stream from a Mac with no streaming server, no cloud transcoder, no packager and no CDN: the Apple Silicon hardware encoder handles H.264, HEVC and AV1, fMP4 is packaged into HLS locally, and segments upload to any HTTPS endpoint.
- [Drones Hit AWS Datacenters: What Streaming Engineers Should Do Right Now](https://ireplay.tv/blog/drones-hit-aws-datacenters-what-streaming-engineers-should-do-right-now.md) (2026-04-06): Iranian drones struck three AWS facilities in the Middle East in March 2026, the first confirmed military strike on a hyperscale cloud provider. What streaming engineers should do: map the real dependency chain, build genuine multi-CDN, distribute origin and packaging, and design for degraded mode.
- [What is a playout system in video broadcasting or streaming?](https://ireplay.tv/blog/video-playout-broadcast-automation-channel-branding-video-server-mam-live-schedule-graphics-scheduling-tv-channel.md) (2026-03-22): What a playout system (video server, broadcast automation, channel-in-a-box) actually does: MAM, video server, automation, branding graphics, monitoring. Compares traditional hardware, cloud and software playout, covers dynamic ad insertion, and recommends by scale from one channel upwards.
- [The Ultimate Guide to 24/7 Streaming on Twitch: Grow Your Audience While You Sleep](https://ireplay.tv/blog/24-7-always-on-streaming-twitch-grow-audience-with-existing-content.md) (2026-03-17): 24/7 'always on' Twitch streams, distinct from a 24-hour marathon: they mix live and pre-recorded content to grow an audience while you sleep. Covers Twitch's 48-hour continuous limit and automated restart, the trade-offs, and setup with My TV Channel.
- [Stop Your ABR Stream From Ping-Ponging Between Bitrates](https://ireplay.tv/blog/stop-abr-stream-ping-ponging-between-bitrates.md) (2026-03-17): Fixing an ABR ladder that oscillates between renditions: the bits-per-pixel sanity check, the 1.5x spacing rule between rungs, single-rendition playback testing, segment duration as the switching clock, Network Link Conditioner, Apple's AVMetrics and tuning hls.js.
- [Your Ingest Can Be GAFA. Your Delivery Doesn't Have To Be.](https://ireplay.tv/blog/ingest-gafa-delivery-sovereign-eu-cdn-streaming-cloud-act-gdpr.md) (2026-03-16): Decoupling ingest from delivery for EU viewers: you can encode on AWS Elemental MediaLive or IVS without using CloudFront. Covers the unresolved CLOUD Act versus GDPR Article 48 conflict, what 'sovereign cloud' marketing actually delivers, and EU-based CDN options.
- [Clean Code in Streaming Apps: Why Your Favorite OTT App Is Probably 10x Bigger Than It Needs to Be](https://ireplay.tv/blog/clean-code-streaming-apps-ott-bloat.md) (2026-03-08): A senior iOS developer's argument that most OTT apps are ten times larger than they need to be: XIB files from 2014, three coexisting networking layers, stacked Coordinator and Router patterns, plus the 20 MB litmus test and an LLM-based test for code cleanliness.
- [What Is MoQ, and Does Your Streaming Product Actually Need It?](https://ireplay.tv/blog/what-is-moq-media-over-quic-streaming-protocol-hls-webrtc-srt-comparison.md) (2026-03-03): What Media over QUIC is, where draft-ietf-moq-transport stands as of March 2026, and how it compares with HLS, WebRTC and SRT. Concludes most products shipping today should not switch yet, tested against two deployed products: WeSpeakSports and DJing Stream.
- [DJing Stream: A Case Study in Lossless PCM Audio Over SRT for Real-Time Distribution](https://ireplay.tv/blog/djing-stream-case-study-srt-audio-architecture-real-time-distribution.md) (2026-02-07): DJing Stream case study: uncompressed PCM audio at around 2,304 kbps over SRT with an HLS ALAC fallback, and WebRTC video at around 1,500 kbps, deliberately spending more bandwidth on audio than video because a venue sound system exposes every artifact. Runs on Apple Silicon.
- [Ultra-Low Latency WebRTC for Live Sports Commentary: The WeSpeakSports Case Study](https://ireplay.tv/blog/ultra-low-latency-webrtc-live-sports-commentary-wespeaksports-antmedia-mediasoup-altcasting.md) (2025-12-02): WeSpeakSports case study: sub-500ms fan commentary over a dual WebRTC architecture combining Ant Media Server and MediaSoup, with the audio configuration, WebSocket keep-alive, ICE setup and independent reconnection strategies that made altcasting synchronise with live action.
- [Vega OS & Fire TV Select: The Resource Management Challenge for Streaming App Developers](https://ireplay.tv/blog/amazon-vega-os-vegaos-fire-tv-select-4k-limited-resources-constrained-android-linux-challenges-and-performance.md) (2025-11-28): Amazon Vega OS and the Fire TV Stick 4K Select: a Linux break from Android that requires full app rewrites in React Native 0.72 or Vega WebView, with 1GB RAM (Android TV guidance allows 280MB per app), 8GB storage, no sideloading and mandatory performance KPIs.
- [Stream your corporate town hall on-prem, without sending it to a SaaS](https://ireplay.tv/blog/stream-corporate-town-hall-on-prem-without-saas.md) (2025-11-12): Streaming a corporate town hall on-premises so internal video never leaves the network: one Mac app replacing the encoder, transcoder, packager and publisher, HLS served from a web server inside the firewall, and what to do when the audience outgrows unicast.
- [Apple Podcasts Connect Unveils Game-Changing Features: Automated Chapters, Smart Links, and More](https://ireplay.tv/blog/apple-podcasts-automated-chapters-smart-links-youtube-import-and-convert.md) (2025-11-05): Apple Podcasts Connect features arriving before the end of 2025: chapters supplied through episode notes or the RSS feed, automatic chapter generation from transcripts for English podcasts, Synchronized Links to Apple Music, Apple TV+ and the App Store, and cross-podcast references.
- [How to run a 24/7 WordPress radio station (without a VPS or a podcast host)](https://ireplay.tv/blog/wordpress-radio-station-247-without-icecast-spotify.md) (2025-10-09): Running a 24/7 internet radio station from WordPress with no VPS, no Icecast or AzuraCast to maintain and no podcast host: the three recurring costs of always-on audio, and the five steps from plugin to embedded player.
- [How to run a 24/7 WordPress TV channel (without YouTube)](https://ireplay.tv/blog/wordpress-tv-channel-247-without-youtube.md) (2025-09-25): Running a 24/7 linear TV channel from a WordPress site instead of YouTube: the three recurring costs (transcoding, storage, bandwidth), and the five steps from installing the plugin to embedding the player, in under an hour.
- [Launch Your Own Linear TV Channel With WordPress: A Step-by-Step Guide Using Existing Content](https://ireplay.tv/blog/launch-linear-tv-channel-step-by-step-guide-create-online-tv-channel-build-linear-tv-channel-ott-existing-content.md) (2025-09-09): Step-by-step guide to launching a linear 24/7 TV channel from content you already own, entirely from a WordPress admin panel: auditing your library, choosing how to broadcast, building the schedule, branding it, and what it costs to start.
- [Altcast: Transforming Sports Live Events with Fan-Driven Commentary](https://ireplay.tv/blog/altcast-alt-cast-sports-live-events-audio-commentary-alternative-fan-engagement-audience-sport-clubs.md) (2025-05-17): Altcast (alternative broadcast) lets fans supply their own commentary track over a live sports feed, so viewers pick tactical, comedic or technical commentary. Covers the low-latency synchronisation, bandwidth and audio-switching problems it creates.
- [Server-side vs Client-side Multiview Streaming: Maximizing Compatibility and Personalization](https://ireplay.tv/blog/multiview-multi-view-server-side-client-side-compatibility-personalization-performance-cost.md) (2025-05-01): Server-side versus client-side multiview: server-side composites the feeds into one stream for universal compatibility including legacy TVs but gives every viewer the same grid, while client-side renders tiles on the device and allows per-viewer choice. The case for combining both.
- [Broadcasting Flashback #1 From DVB‑H to 5G Broadcast: A Decade‑Long Vision](https://ireplay.tv/blog/5g-broadcast-4g-lte-broadcast-mobile-broadcasting-kpn-dvb-h.md) (2025-04-19): From DVB-H to 5G Broadcast: KPN launched Europe's first nationwide mobile broadcast TV as MobielTV on 29 May 2008 and shut it on 1 June 2011 for lack of handsets. Written by the engineer who transcoded and packaged its ten live feeds.
- [Streaming Flashback #2 Google Nexus Q: Google's Ambitious OTT Experiment Now A Collector’s Gem](https://ireplay.tv/blog/google-nexus-q-ambitious-ott-experiment-doa.md) (2025-04-19): The Google Nexus Q, unveiled at Google I/O 2012: a spherical cloud-only streaming device with social queueing, positioned against Apple TV, killed by its price, its dependence on specific Android handsets and its lack of standalone apps. Chromecast learned from it.
- [Hidden Challenges of Implementing SSAI: Latency, Sync, and Fallback Ads](https://ireplay.tv/blog/ssai-server-side-ad-insertion-challenges-latency-sync-fallabck-ads-vast-limits.md) (2025-04-12): The hidden problems in SSAI implementations: processing and network latency, audio and video sync across encoding differences between content and ads, fallback ads and falling back to the original stream, and the 2-second VAST response limit against 6 to 10 second segments.
- [Beyond EXT-X-DISCONTINUITY: Advancing SSAI with Edge Computing and Personalized In-Stream Ad Tech](https://ireplay.tv/blog/ad-tech-streaming-edge-computing-csai-ssai-sgai-personalized-in-stream-lbanner-lshape-ads.md) (2025-04-12): Moving past EXT-X-DISCONTINUITY for SSAI: the tag is visible in the manifest so ad blockers flag it, and mismatched ad segments cause playback glitches. Covers manifest manipulation, stream handling, segment retranscoding, edge computing and L-banner in-stream ads.
- [Why Nintendo Switch 2 Game Chat Shows Poor Video Quality: A Deep Dive into Low Latency Trade-Offs](https://ireplay.tv/blog/nintendo-switch-2-game-chat-poor-video-quality-low-latency-streaming-udp.md) (2025-04-06): Why Nintendo Switch 2 Game Chat looks poor in the trailer: it uses UDP for the lowest possible latency, so lost packets are never retransmitted and framerate and picture quality suffer. Compared with the TCP-based buffering that Google Meet and Teams use.
- [HEVC: The Promise of a Future That Never Came](https://ireplay.tv/blog/hevc-h265-h264-av1-patent-pool-drm-interoperability-deployment.md) (2025-04-05): Why HEVC never delivered on its promise: the doubled compression efficiency rarely materialised in practice, multiple patent pools made royalty costs unpredictable, DRM integration in Chrome was a problem, and the industry went to AV1 or stayed on H.264.
- [How to Monetize Streaming Without Obtrusive Ads in <YYYY>?](https://ireplay.tv/blog/monetize-streaming-live-vod-without-intrusive-ads-affiliate-subscription-monetization-avod.md) (2025-03-23): Monetizing live and VOD without interruptive ads: contextual in-player formats such as L-shape and Picture-in-Picture overlays through services like Olyzon, tipping, product placement, affiliate and shoppable overlays, subscriptions and pay-per-view, and hybrid tiers.
- [Which HLS Test Player Should You Use in <YYYY>? Our Take on Bitmovin, hls.js, and More](https://ireplay.tv/blog/best-hls-test-player-hls-js-vs-bitmovin-safari-avplayer.md) (2025-03-23): Which HLS test player to use. Argues hls.js is the most honest because Bitmovin's demo player runs a large default buffer that hides slow segment delivery, badly tuned ABR ladders and jitter. Also covers Shaka Player, JW Player, THEOplayer and AVPlayer in Safari.
- [Advanced SSAI and HLS Manifest Manipulation for Dynamic Ad Insertion](https://ireplay.tv/blog/advanced-ssai-hls-manifest-manipulation-dynamic-ad-insertion-scte35-ad-markers-dai.md) (2025-03-04): Advanced SSAI through HLS manifest manipulation: splicing segments, transcoding on demand and injecting metadata, with the GOP, PTS and SCTE-35 alignment problems that make frame-accurate insertion hard. Covers L-shaped, overlay and Picture-in-Picture ad formats.
- [The End of an Era: Skype’s Shutdown and Its Legacy in Remote Video Interviews](https://ireplay.tv/blog/skype-shutdown-discontinuation-video-call-remote-interviews-microsoft-teams-udp-tcp.md) (2025-03-02): Skype's shutdown as Microsoft consolidates on Teams: what made it the default remote interview tool from 2003, why the $8.5 billion 2011 acquisition never made it the workplace standard, and which alternatives replace it for interviews, business and personal calls.
- [How to Achieve Perfectly Smooth Video in Remote Interviews (No Lag or Frame Drops) ?](https://ireplay.tv/blog/smooth-interviews-lag-framerate-frame-skipping-avoid-drops-frames-fluid-interview-video-quality.md) (2025-03-02): Why remote interviews stutter and how to fix it: conferencing platforms default to UDP, which never re-sends a lost packet, so frames are simply gone. For recordings, force TCP through Zoom, Jitsi Meet, Riverside.fm, Zencastr or Ecamm Live and accept the latency.
- [Understanding OBS Rate Control: Optimizing Your Live Streaming Experience](https://ireplay.tv/blog/obs-rate-control-live-streaming-rate-control-obs-bitrate-settings-constant-bitrate-cbr-variable-bitrate-vbr-quality-abr.md) (2025-02-27): OBS rate control modes explained: CBR for predictable bandwidth and server compatibility, VBR for efficiency, plus QVBR, ABR, CRF and constrained or capped VBR, and which to pick for live streaming versus recording.
- [Signaling: How to Optimize OTT Streams with EPG, SCTE-35, and Manifest Manipulation](https://ireplay.tv/blog/ott-signaling-scte-35-cue-in-out-daterange-program-date-time-ssai-ad-break-epg.md) (2025-02-25): Signalling in OTT streams: EPG metadata, SCTE-35 markers for ad insertion, PROGRAM-DATE-TIME for cross-device time alignment, manifest manipulation for personalization and regional compliance, and the tags that enable start-over and time-shifting.
- [HLS Streaming demystified: Apple's Pioneering Contribution to HTTP Live Streaming, as seen by an industry insider from the beginning](https://ireplay.tv/blog/hls-streaming-apple-http-live-streaming-protocol-standard-when-how-to-use-it-hls-ingest-akamai-msl4.md) (2025-02-25): History of HLS from an industry insider: Roger Pantos's team at Apple shipping it with iPhoneOS 3, early deployments at BSkyB, Canal+ and Orange, the first VOD2Live solution in late 2012, and the viewer-personalized channels of 2015 that became FAST.
- [What's New in HTTP Live Streaming (HLS) 2nd Edition version 17 (2025): Content Steering Updates](https://ireplay.tv/blog/what-s-new-hls-rfc-draft-version-17-february-2025-content-steering.md) (2025-02-24): What changed in HLS 2nd Edition draft-pantos-hls-rfc8216bis-17 (2025): content steering refinements including structured fallback playlists in the JSON steering manifest, finer client routing by CDN load and location, and a better failover mechanism.
- [Streamlining User Experience: The Importance of Fast Streaming and App Launch Time](https://ireplay.tv/blog/fast-streaming-app-launch-critical-user-experience-streaming-app-development-ios-ipados-tvos-android-tv.md) (2025-02-23): Why streaming start time and app launch time decide whether users stay: the abandonment threshold, what a slow launch signals to a user, and the code size, resource use and CDN work that shorten both.
- [Boost Your Ad-Supported Streaming Revenue with Watch Time Optimization](https://ireplay.tv/blog/ad-supported-video-on-demand-avod-free-ad-supported-tv-fast-watch-time-ad-revenue-viewer-retention.md) (2025-02-21): Optimising watch time on AVOD and FAST channels, since ad revenue follows minutes watched rather than views: content curation, choosing video length from retention graphs, and a user experience that keeps viewers moving to the next item.
- [IBC Amsterdam 2024 (@ RAI 13-16 Sep), what to expect ?](https://ireplay.tv/blog/ibc-2024-amsterdam-rai-september-what-to-expect-insights-predictions-trends-ai-broadcast-streaming-tradeshow.md) (2025-02-19): IBC 2024 preview (RAI Amsterdam, 13 to 16 September): user experience displacing codecs and latency as the industry's focus, cost pressure, the retreat from public cloud to private and hybrid, AI hype worth cutting through, and the sustainability paradox.
- [Streamyard: An In-Depth Look at Simulcasting and Multistreaming](https://ireplay.tv/blog/streamyard-simulcasting-multistreaming-what-is-streamyards-simulcast-multistream-youtube-facebook-instagram-tik-tok.md) (2025-02-18): StreamYard for simulcasting and multistreaming to YouTube, Facebook and Instagram at once: how it grew during the COVID-19 lockdowns, its browser-based approach, and its business model, including the branding and subscription trade-offs.
- [What are addressable TV and personalized TV?](https://ireplay.tv/blog/addressable-tv-targeted-advertising-and-content-music-tv-channels.md) (2025-02-17): Addressable TV versus personalized TV, two things routinely confused: addressable delivers targeted advertising to specific households through set-top boxes and smart TVs, personalized tailors the content itself. Suggests music channels as a first experiment.
- [Mastering End-to-End Streaming Technology: Why It Matters More Than Ever](https://ireplay.tv/blog/multi-view-mastering-end-to-end-streaming-multiview-ios-prototype-low-cpu-memory.md) (2025-02-16): A working four-stream MultiView prototype for iOS delivered in two days, running at 0 to 2% CPU and 20 MB of memory on a 2022 device with no third-party SDK. The argument that controlling transcoding, packaging, distribution and playback end to end is what makes that possible.
- [The YouTube 24-Hour Phenomenon: How to Profit from Videos the Algorithm Buries](https://ireplay.tv/blog/youtube-algorithmic-decay-burial-24-hours-ctr-clicks-feed-views-subscribers-notifications-algorithm.md) (2025-02-15): YouTube's 24-hour algorithmic decay: videos that do not gather click-through rate and watch time in the first day rarely get a second chance at recommendation. What to do with the buried archive, including rebuilding it as a 24/7 linear channel or a branded VOD service.
- [Building a Custom Offline Download Solution for SVOD Apps on iPhone and iPad](https://ireplay.tv/blog/custom-offline-downloads-solution-svod-apps-ios-iphone-ipad-hls-retries-download-streaming.md) (2025-02-13): Why Apple's AVFoundation HLS offline download fell short for an SVOD app and what replaced it: streams with 1.6-second segments produced tens of thousands of files per film, audio and video segment durations were misaligned, and retries looped. Covers the custom downloader built instead.
- [Step-by-Step Guide: Adding Pay-Per-View Live Streaming to Your Wix Website](https://ireplay.tv/blog/pay-per-view-live-streaming-wix-website-embed-embedding-iframe-code-monetization-step-by-step-guide.md) (2025-02-12): Step-by-step guide to adding pay-per-view live streaming to a Wix site: choosing a platform that supports PPV, configuring price and access duration, generating the embeddable iframe code, and placing it with the Wix HTML Code element.
- [Navigating the YouTube Ad Blocker Dilemma: A Comprehensive Guide](https://ireplay.tv/blog/youtube-ad-blockers-policy-circumvent-solution-fix-creators-and-viewers-ublock-origin-adguard-youtube-premium.md) (2025-02-11): YouTube's crackdown on ad blockers: degraded playback and prompts to disable or subscribe to Premium, how uBlock Origin and AdGuard have responded, the ethics of blocking creator revenue, and converting videos to podcasts as an alternative.
- [How to launch a paid podcast subscription ?](https://ireplay.tv/blog/steps-to-create-launch-subscription-based-podcast.md) (2025-02-09): Launching a paid podcast subscription: choosing the exclusive content that justifies paying, payment processing through Stripe, PayPal or Patreon, a landing page, promotion, and delivering episodes through a private RSS feed.
- [Video buffering and frame skipping: How to improve customer experience during live-streaming events](https://ireplay.tv/blog/video-buffering-frame-skipping-how-to-improve-customer-experience-for-live-streaming-events.md) (2025-02-08): What actually causes buffering and frame skipping during live events (slow connections, overloaded servers, player and encoding faults), and the preparation and in-event redundancy that prevent both: player tuning, correct encoding, backup servers and backup network connections.
- [What is Twitch Guest Star and how to make the best out of it ?](https://ireplay.tv/blog/twitch-guest-star-new-feature.md) (2025-02-07): Twitch Guest Star, the built-in feature for bringing other streamers onto your channel without StreamYard or another third-party service, and how to use it for audience sharing, collaboration, discoverability and teasing a paywalled event elsewhere.
- [How to achieve low latency, high-quality video for live streaming?](https://ireplay.tv/blog/how-get-high-quality-low-latency-live-streaming.md) (2025-02-07): Whether low latency and high quality are achievable together over the public internet. Concludes they are inversely proportional and that claiming both at worldwide scale is dishonest unless you control delivery end to end. Covers multicast and unicast-to-multicast.
- [The Rise and Fall of Edgio: A Cautionary Tale of Mismanagement and Stagnation](https://ireplay.tv/blog/edgio-bankrupt-bankruptcy-limelight-networks-edgecast-uplynk-edgecast-cdn.md) (2025-02-06): The collapse of Edgio, formerly Limelight Networks, into bankruptcy: growth by acquisition with no strategy behind it, the talent it lost, operational inertia, and Akamai stepping in. What the CDN industry should take from it.
- [News: Anjali Sud Steps Down as CEO of Vimeo and Joins Tubi FAST Streaming Service](https://ireplay.tv/blog/vimeo-ceo-anjali-sud-steps-down-join-tubi-fast-streaming-services-vimeo-ipo-revenues-losses-bandwidth-threshold.md) (2025-02-05): Anjali Sud stepping down as Vimeo CEO to join Tubi, the Fox-owned FAST service. What her tenure from 2014 built at Vimeo, what the transition means for the company, and Vimeo's revenue and loss position under IAC.
- [What are the best practices for video embedding on websites?](https://ireplay.tv/blog/how-to-embed-video-to-a-website.md) (2025-02-05): Video embedding best practices for websites: the HTML5 video tag versus iframe embed codes from YouTube and Vimeo, player dimensions that divide evenly into 1920x1080 (960x540, 1280x720, 640x360) to avoid pixel stretching, and viewport media queries for mobile.
- [Understanding Next Generation Audio (NGA)](https://ireplay.tv/blog/nga-next-generation-audio-immersive-personalized-audio-experiences-ac4-atmos-object-channel-scene.md) (2025-02-05): Next Generation Audio (NGA) explained: channel-based, object-based and scene-based (Ambisonics) audio, what Dolby Atmos and AC-4 add, and what personalization buys viewers, from adjustable dialogue levels to alternate commentary and accessibility.
- [How to Set Up Your Own 24/7 Live Stream TV: Capture, Keep, and Monetize Your Audience](https://ireplay.tv/blog/how-to-have-my-tv-channel-live-stream-24-7-streaming-service-subscription.md) (2025-02-04): Setting up a 24/7 live stream TV channel: why it is a mix of live and catalogue content rather than a continuous broadcast, how Cars and Brands TV launched with only 4 hours of programming, and the six steps from content planning to monetization.
- [Free HLS streams to test video streaming players, websites, and apps #1 Blender Open Movies TV Channel](https://ireplay.tv/blog/hls-streams-examples-streams-continuous-discontinuity-vod2live-test-video-players-app-websites.md) (2025-02-03): Free HLS test stream for video players, websites and apps: a continuous 24/7 channel of Blender Open Movies at ireplay.tv/test/blender.m3u8, with an fMP4 failover variant, usable for player and app testing with attribution.
- [Online video platforms: What is the Max Bitrate to Set in OBS or any other transcoder?](https://ireplay.tv/blog/obs-bitrate-settings-maximum-bitrate-for-obs-recommended-max-bitrate-obs-limitations-in-obs-streaming-optimal-setting.md) (2025-02-03): Maximum bitrate to set in OBS per platform: Twitch 6000 Kbps (8000 for Partners and Affiliates), YouTube 8000 Kbps and up to 51,000 for 4K, plus TikTok, Facebook and LinkedIn, against Apple's 7800 Kbps device recommendation.
- [Cheaper and Better: alternative to Castr.io subscription plans](https://ireplay.tv/blog/top-10-alternatives-to-castr-io-enterprise-grade-live-streaming-platform-for-businesses-individuals.md) (2025-02-03): Castr.io alternative comparison: HTTP Streaming score 8 out of 20, $477.50 for a 1000-viewer HD hour versus $63 on iReplay after $0.25 per GB overage, unknown ABR support, and no time-shifting or DVR.
- [Ad blockers blocked on YouTube to choose between ads and YouTube Premium? Learn how to provide ad-free videos and gain better audience insights and generosity at the same time](https://ireplay.tv/blog/ad-blockers-ads-blocking-youtube-ad-free-know-audience-better-insights.md) (2025-02-03): YouTube blocking ad blockers to push Premium, and what creators can do about it: who actually owns a YouTube channel's audience, the Dailymotion precedent, collecting email addresses, and offering viewers a direct choice between ads and a small fee.
- [Why Broadcasters Should Offer an Audio Stream Without Live Commentary for Sports Events](https://ireplay.tv/blog/audio-only-stream-for-sports-events-why-broadcasters-should-provide-some.md) (2025-02-02): The case for broadcasters offering a sports audio stream carrying crowd sound with no commentary: who wants it and why, what it costs to produce and carry, and where the balance sits against the standard commentary track.
- [Comparing Streaming Analytics Tools: Nice People At Work, Mux, and Google Analytics](https://ireplay.tv/blog/npaw-mux-google-analytics-streaming-analytics-seo-optimization-audience-behavior-quality-experience.md) (2025-02-02): Streaming analytics tools compared: NPAW YOUBORA for broadcast-grade metrics and AI-driven SmartModules, Mux Data for a real-time dashboard built around a Viewer Experience Score, and Google Analytics for audience and behaviour insight.
- [Monetizing Live Streams: A Comprehensive Guide](https://ireplay.tv/blog/monetizing-live-streams-pay-per-view-live-streams-memberships-subscriptions-donations-tips-sponsorship-advertising-sales.md) (2025-02-02): Six ways to monetize a live stream compared: pay-per-view, memberships and subscriptions, donations and tips (YouTube Super Chat, Twitch Bits, Facebook Stars), sponsorship, advertising and merchandise, with the survey finding 87% of audiences prefer online if it means behind-the-scenes content.
- [Why Launch Your Streaming Service with an iOS and iPadOS App?](https://ireplay.tv/blog/why-launch-streaming-service-iphone-ios-ipad-ipados-apple-devices-app-website.md) (2025-02-01): The case for launching a streaming service as an iOS and iPadOS app before a website: App Store discovery is faster and cheaper than web SEO, Apple users spend more, SSAI fits natively, and the commission drops to 15% or 10% for small businesses.
- [What is the recommended transcoder for live streaming vertical videos on platforms like TikTok and Instagram?](https://ireplay.tv/blog/recommended-transcoder-live-streaming-vertical-video-instagram-tiktok-tik-tok-yololiv-instream.md) (2025-02-01): Transcoder choice for vertical 9:16 live streaming to TikTok and Instagram, covering what a transcoder does and the YoloLiv YoloBox portable studio: a 7-inch touchscreen switcher handling up to five sources, plus YoloLiv Instream.
- [Green Transcoding: iReplay.TV's Innovative Approach to Sustainable Video Processing](https://ireplay.tv/blog/green-transcoding-green-washing-streaming-industry-co2-footprint-compensate-compensation-sustainability-sustainable.md) (2025-02-01): iReplay.TV's green transcoding: jobs run only on surplus solar power from the office panels, which means longer processing times, with infrastructure sited within 3 km of a Brittany wind farm. Also argues why carbon offsetting is not the same as not emitting.
- [Choosing the Right HTML5 Video Player: Why it Matters for Your Streaming Experience](https://ireplay.tv/blog/html5-video-player-hls-player-what-is-the-best-player-for-your-website-or-native-app.md) (2025-01-31): Choosing an HTML5 or HLS video player: CPU cost that drains batteries on older devices, players that skip frames, and players that switch bitrate too often and re-download every segment, adding bandwidth cost. Compares native, third-party and JavaScript players.
- [Best Live Video Streaming Apps for Mobile on Any Budget in <YYYY>](https://ireplay.tv/blog/what-are-the-best-live-video-streaming-apps-on-mobile-for-any-budget.md) (2025-01-31): Mobile live streaming apps and kit by budget: the Roland VRC-01 AeroCaster wireless system at $299 one-time, Switcher Studio from $49 per month, NabiApp Live Now at $1.99 per month, plus free options for a single social network.
- [Top 13 Reasons to Publish Your Videos on YouTube Instead of Hosting Them on Your Website, Podcast, TV Channel, App, or E-commerce Website](https://ireplay.tv/blog/top-reasons-publish-videos-youtube-website-podcast-tv-channel-app-control-publish-videos-count-views.md) (2025-01-30): A satirical list of thirteen reasons to publish on YouTube rather than host video yourself: intrusive ads with the revenue going elsewhere, recommendations that send your viewers away, signing the rights over to Google, and the fact that under 0.001% of posters earn minimum wage.
- [The Rise of Audio Podcasts: Converting Your YouTube Channel for the Commuting Listener](https://ireplay.tv/blog/youtube-channel-airpods-commuting-listener-transport-airpod-listen-audio-only-podcast.md) (2025-01-29): Converting a YouTube channel into an audio podcast for commuters: why AirPods changed listening habits, how audio reaches people who will not watch video, and the monetization and accessibility that come with an RSS feed.
- [OBS Studio Introduces WebRTC and WHIP Support: A Game Changer for Live Streamers](https://ireplay.tv/blog/obs-studio-update-webrtc-whip-integration-livestreaming-realtime-communication-low-latency-high-quality-streams.md) (2025-01-27): OBS Studio adding WebRTC and WHIP output, announced 10 June 2023: the WebRTC HTTP Ingest Protocol lets OBS push directly to a media server, cutting contribution latency for interactive streams. Implemented by Sean DuBois and tt2468.
- [83% of Enterprises Plan to Move Back to Private Cloud: Why iReplay.TV Offers the Ultimate Flexibility](https://ireplay.tv/blog/private-cloud-migration-hybrid-cloud-media-streaming-services-infrastructure-cost-ownership-rapatriation.md) (2025-01-27): 83% of enterprises planning to move workloads back from public to private cloud, and what that means for media streaming infrastructure: switching without migration fees, hybrid setups that split content across public and private, and full source code ownership.
- [Boost Your 24/7 TV Channel's Audience Engagement Using a Discord Server](https://ireplay.tv/blog/discord-tv-channel-engagement-community-content-visibility-interactive-digital-server-support.md) (2025-01-27): Using a Discord server as the community layer for a 24/7 TV channel: voice channels for live discussion during broadcasts, text channels per programme, and roles, badges and custom emojis to reward the most engaged viewers.
- [How AWS Uses Partners as a Stepping Stone: The Amazon Basics Strategy in Cloud Services](https://ireplay.tv/blog/amazon-aws-strategy-vs-amazon-basics-partnership-risks-mediakind-elemental-mediatailor-cloudfront-azure-media-services.md) (2025-01-27): How AWS uses partners the way Amazon retail uses third-party sellers: partners bring innovation and customers, AWS earns more from the underlying VMs than the partner earns from its own product, and eventually competes directly. MediaKind as the worked example.
- [OBS keyframe interval: what is the correct keyframe interval for live streaming?](https://ireplay.tv/blog/what-is-the-correct-keyframe-interval-for-live-streaming-obs-studio.md) (2025-01-26): OBS keyframe interval settings, and why the copy-pasted 2 second value comes from MPEG-2 set-top boxes rather than HLS. Recommends 6 seconds for quality, 1 second for interaction, and notes the OBS auto default is actually 250 frames.
- [Blackmagic Camera App on iOS: A Game-Changer in Mobile Filmmaking](https://ireplay.tv/blog/blackmagic-camera-app-ios-iphone-mobile-filmmaking-cloud-davinci-resolve-integration.md) (2025-01-26): The Blackmagic Camera app for iOS: Blackmagic OS controls on an iPhone with zebra, focus peaking, white balance and audio monitoring, direct sync to DaVinci Resolve through Blackmagic Cloud, and why it shipped iOS-only. Compared with Filmic Pro.
- [Multi-View: Revolutionizing Video Production, Live Streaming, and Engaging Audiences](https://ireplay.tv/blog/youtube-tv-multi-view-what-is-multiview-grid-multiple-sources.md) (2025-01-25): Multi-view video grids: YouTube TV's sports launch, and how switching between camera angles works for production, live monitoring and viewer-chosen angles, implemented through HLS alternate video tracks. iReplay has shipped multiview since 2016.
- [Optimizing SGAI and AVOD with HLS Interstitials in <YYYY>: A Case Study from iReplay.TV](https://ireplay.tv/blog/hls-interstitials-sgai-svod-avod-deployment-ios-ipados-tvos-development-developer-dynamic-case-study.md) (2025-01-25): Case study of the first Server-Guided Ad Insertion deployment for a major European SVOD service: why the CSAI and multiperiod options were both rejected, how HLS Interstitials and AVOD hybrid models were combined, and the deployment strategy on iOS, iPadOS and tvOS.
- [Streamlining Costs and Enhancing Scalability: How Amazon Prime Video Optimized with Monolith Architecture](https://ireplay.tv/blog/amazon-aws-amazon-prime-video-shifting-from-microservices-to-monolith-reducing-microservices-cost-by-90-per-cent.md) (2025-01-24): Amazon Prime Video moving its live stream monitoring from AWS Step Functions microservices back to a monolith on EC2 and ECS, cutting costs by up to 90% by removing orchestration overhead and inter-component data transfer.
- [AI-generated videos or video automation: how to enhance a video production workflow?](https://ireplay.tv/blog/ai-video-automation-fast-easy-content-production-enhance-video-workflow-process-faster-easier-efficient.md) (2025-01-23): AI-generated video and video automation in a production workflow: what makes preparation, shooting and editing slow, where generative tools realistically cut work today, and which parts of the pipeline can already be automated with templates rather than generation.
- [SSCI: Beyond SSAI – The Evolution of Content Insertion in OTT](https://ireplay.tv/blog/ssci-ssai-csai-ad-content-insertion-evolution-personalization-ai-customization.md) (2025-01-22): SSCI (Server-Side Content Insertion) as the step past SSAI: the same stitching that puts ads into a stream can insert any content, which is how Jukebox TV builds fully personalized channels. Traces the path from CSAI through EXT-X-DISCONTINUITY and SSAI.
- [How to Personalize Premiere and Live Countdowns for YouTube (and Add a QR Code to Subscribe on the Big Screen)](https://ireplay.tv/blog/how-to-personalize-premiere-live-countdowns-for-youtube-personalized-trailers-redirect.md) (2025-01-22): Personalizing a YouTube Premiere or scheduled live countdown: replacing the default ticking number with a branded countdown and trailer, enabling the live redirect, and adding a QR code so viewers watching on a TV can actually subscribe.
- [Efficiently Producing 24/7 Live Streams: A Guide to 24/7 Streaming without the Requirement of a Dedicated PC or Live Transcoders](https://ireplay.tv/blog/fast-channels-vod2live-continuous-streaming-how-to-produce-a-24-7-tv-channel-like-live-stream.md) (2025-01-22): VOD2Live explained: running 24/7 FAST or linear channels from pre-recorded files without playout software, a dedicated PC or live transcoders, using the HLS discontinuity feature Apple added in 2012 that allows a full decoder reset at any point.
- [Achieving Lightning-Fast Video Start with Target Duration Optimization](https://ireplay.tv/blog/video-fast-start-initial-launch-time-quick-faster-loading-no-buffering-chunk-duration-service-based-video-provider-only.md) (2025-01-22): Cutting video start time by bending segment duration: EXT-X-TARGETDURATION is a maximum, not a fixed length for every segment, so shorter opening segments let playback begin sooner without re-encoding the whole ladder.
- [How to Shoot Spatial Videos for Apple Vision Pro](https://ireplay.tv/blog/how-to-shoot-spatial-videos-for-apple-vision-pro-apple-iphone-15-pro.md) (2025-01-21): Shooting spatial video for Apple Vision Pro: capturing with the iPhone 15 Pro camera app and A17 Pro chip, recording directly on the headset, transferring the footage, and what the three-dimensional playback experience actually is.
- [Streaming Flashback #1 Resolving the Streamlabs OBS and OBS Studio Naming Controversy: A Clash of Livestreaming Software](https://ireplay.tv/blog/streamlabs-obs-studio-livestreaming-software-naming-controversy-open-broadcaster-software-lightstream.md) (2025-01-21): The Streamlabs OBS naming dispute: Lightstream's CEO accused Streamlabs of copying its design, OBS Project objected to its name being used after asking Streamlabs not to, and Pokimane threatened to drop the software before Streamlabs renamed.
- [What is the Best Video Codec for Live Streaming? Exploring H.264 for Optimal Performance](https://ireplay.tv/blog/best-video-codec-live-streaming-h264-software-hardware-local-transcoder-obs-hevc-av1-hls-compatibility-devices-autonomy.md) (2025-01-21): The best codec for live streaming, split between contribution and delivery. Concludes H.264 remains the right answer for both despite HEVC and AV1 compressing better, because device and HLS compatibility dominates the decision.
- [Cheaper and Better: alternative to Dacast subscription plans](https://ireplay.tv/blog/top-10-alternatives-to-dacast-live-streaming-platform-online-video-hosting.md) (2025-01-19): Dacast alternative comparison: HTTP Streaming score 7 out of 20 against Apple's HLS Authoring Specification, $250 for a 1000-viewer HD hour versus $63 on iReplay, plus a 4.7 Mbps bitrate ceiling, 3 second segments and strict transcoder requirements.
- [Achieving Seamless Interaction: Mastering Low Latency Streaming with OBS](https://ireplay.tv/blog/obs-studio-low-latency-protocols-lowest-latency-streaming-live-streaming-without-delay-low-latency-streaming-protocol.md) (2025-01-18): Low latency streaming with OBS: what WebRTC, SRT, LL-DASH and LL-HLS each contribute, how to enable OBS low latency mode, and which settings to tune when interaction with the audience matters more than picture quality.
- [Countdown to IBC 2023 by Kitplus](https://ireplay.tv/blog/countdown-to-ibc-2023.md) (2025-01-18): The Kitplus live show streamed on 31 August 2023 previewing IBC exhibitors, with the full running order: Telycam, axle ai, Mediaproxy, Marquis Broadcast, EditShare, Cinegy, LiveU, MediaKind, Telestream and dozens more, each in a five-minute slot.
- [Is 30 Frames Per Second the Optimal Frame Rate? Debunking the Frame Rate Myth](https://ireplay.tv/blog/fps-frames-per-second-30-second-frame-rate-30-seconds-framerate-best-optimal-correct-myth.md) (2025-01-18): Whether 30 fps is the right frame rate. Concludes there is no universal answer and that the source frame rate should be preserved: 30 suits talking-head content, 60 or 120 matter for gaming and action, and the encoder should not resample.
- [How to Live Stream an Event for $0.001 per Minute in <YYYY>?](https://ireplay.tv/blog/how-to-live-stream-an-event-best-way.md) (2025-01-18): Live streaming an event at around $0.001 per viewed minute: which event types suit it (conferences, concerts, workshops, launches, webinars), then a seven-step guide covering goals, software, equipment, platform, multistreaming, connection check and rehearsal.
- [A Comprehensive Guide: How to Go Live on TikTok and Maximize Your Engagement](https://ireplay.tv/blog/how-to-go-live-on-tik-tok-live-streaming-how-many-followers.md) (2025-01-17): Going live on TikTok: the 18-year minimum, LIVE Gifts converted to Diamonds and withdrawn to a bank or PayPal account once you reach 2,000 Diamonds ($10), the discoverability features, and what makes a live session hold an audience.
- [Keep It Simple: The Problem with YouTube’s New In-App PiP](https://ireplay.tv/blog/keep-it-simple-ui-ux-example-of-how-it-can-get-wrong-youtube-in-app-pip-ios-mobile-development-developer-swift-ui.md) (2025-01-17): Why YouTube's custom in-app Picture-in-Picture on iOS is worse than the system one: a smaller window that cannot be moved, controls in a dark grey bar, inconsistent positions, and different skip durations. A case study in why familiar patterns beat custom ones.
- [How to Prevent Copyrighted Music Strikes on YouTube for Content Creators?](https://ireplay.tv/blog/avoiding-copyrighted-music-strikes-on-youtube-a-guide-for-content-creators.md) (2025-01-16): Avoiding YouTube copyright strikes on music: royalty-free libraries, the YouTube Audio Library, direct permission from rights holders, Content ID, and moving music live streams to Twitch or Mixcloud where the licensing is friendlier.
- [What is the significance of the values '0' and 'auto' for keyframe interval (GOP size) in OBS, and why should you steer clear of them?](https://ireplay.tv/blog/auto-0-keyframe-interval-obs-gop-size-why-avoid-default-automatic-value.md) (2025-01-15): What OBS actually does with keyframe interval set to '0 auto', read from the OBS source code: keyint_sec of 0 makes the GOP size default to 250 frames rather than anything adaptive, which is 10 seconds at 25 fps and 4.16 seconds at 60.
- [YouTube Testing SSAI: A Glimpse into the Future of Ad Delivery](https://ireplay.tv/blog/youtube-ssai-server-side-ad-insertion-fast-channels-technology-ad-blockers-personalized-content-buffering-ad-blocking.md) (2025-01-15): YouTube testing server-side ad insertion in June 2024 to defeat ad blockers, and the argument that iReplay.TV shipped the same dynamic on-the-fly server-side insertion in December 2013, along with the first personalized and FAST-style channels.
- [Does Eco-Friendly Streaming or Green Streaming Truly Exist?](https://ireplay.tv/blog/just-in-time-transcoding-serverless-is-green-streaming-green-washing-greening-streaming.md) (2025-01-15): Whether green streaming is real or greenwashing: just-in-time and serverless transcoding retranscode content that was already in its final broadcast format, spending energy for nothing. Compares AV1 and H.264 encoding energy, and questions serverless for 24/7 operations.
- [Navigating CloudFront Pricing for Video Streaming: Unveiling Risks and Quality Trade-offs](https://ireplay.tv/blog/cloudfront-costs-aws-reduce-cloudfront-costs-affects-amazon-cloudfront-costs-aws-cdn.md) (2025-01-14): How CloudFront pricing behaves for global video: costs rise with regional spread and audience size, and the usual mitigation of cutting bitrate trades the broadcast's quality for the bill. Covers where the balance sits for broadcasters.
- [Reduce Buffering for Your Streaming Viewers with this Very Simple Trick](https://ireplay.tv/blog/reduce-streaming-buffering-end-video-streaming-buffering-simple-trick-tips-finetuning-adjustements.md) (2025-01-14): A manifest-level trick that cuts buffering: list the lowest resolution first in the multivariant playlist so the player starts there and climbs, instead of starting high and stalling. Covers why it works and where it does not.
- [Understanding Keyframes: A Comprehensive Guide to the Heart of Encoding](https://ireplay.tv/blog/what-is-a-keyframe-howto-keyframes-idr-i-p-b.md) (2025-01-13): Keyframes explained in depth: what a keyframe stores, and how I-frames, P-frames, B-frames and IDR frames differ in what they reference, what they cost in bits, and how they behave when data is lost in transmission.
- [Streaming Lossless Audio for an Unparalleled Music Experience](https://ireplay.tv/blog/lossless-audio-streaming-the-new-standard-for-hifi-high-fidelity-music-streaming-radio.md) (2025-01-13): Lossless audio over HLS: FLAC and Apple Lossless arrived in the 2020 OS releases, and unlike AAC they do not target a bitrate but consume whatever the fidelity requires. Covers adding high bit rate variants for concerts, premium channels and radio.
- [Maximizing Live Streaming Latency: Techniques for Achieving the Lowest Delay](https://ireplay.tv/blog/how-to-get-low-latency-is-subsecond-delay-possible.md) (2025-01-12): Glass-to-glass versus streaming latency, why standard HLS runs around 18 seconds under Apple's recommendations, and what LL-HLS, HESP, AWS IVS and WebRTC actually achieve. Covers the quality cost of shrinking segments and when low latency is not needed at all.
- [Live Streaming from Antarctica to Europe and North America in 2015 - A case study from iReplay.TV](https://ireplay.tv/blog/streaming-in-difficult-conditions-network-variability-distant-location-ingest-antarctica.md) (2025-01-12): Case study of live streaming the Wild Touch Expedition from the Dumont d'Urville station in Antarctica to Europe in November 2015: Streambox transcoders in extreme cold, geostationary satellites that do not cover the poles, and why ABR was kept over low-latency protocols.
- [Boost Your Video SEO: The Power of White-Label Streaming Solutions and CNAME](https://ireplay.tv/blog/boost-video-seo-increase-video-seo-better-video-seo-white-label-cname-branding.md) (2025-01-11): Video SEO through a white-label streaming platform on your own CNAME rather than YouTube: keeping the branding, controlling video metadata and page structure, and having the search value accrue to your domain instead of youtube.com.
- [](https://ireplay.tv/blog/restream-alternatives-no-monthly-plan-commitment-required-standard-plan.md) (2025-01-11): Restream.io explained and compared: multi-streaming to YouTube, Facebook Live, Twitch and LinkedIn Live at once, chat aggregated across platforms, analytics, and Custom RTMP for anything unsupported, plus its pricing and alternatives with no monthly plan.
- [Free HLS streams to test video streaming players, websites, and apps #2 HLS Interstitials](https://ireplay.tv/blog/hls-streams-examples-streams-interstitials-preroll-midroll-cue-test-video-players-app-websites.md) (2025-01-08): Free HLS test stream number two, demonstrating HLS Interstitials: how EXT-X-DATERANGE tags schedule pre-roll and mid-roll assets against VOD, live and Low-Latency HLS content, the attributes involved, and a public stream for testing player support.
- [Cheaper and Better: alternatives to Synamedia Quortex Play monthly commitments](https://ireplay.tv/blog/top-10-alternatives-quortex-play-synamedia-link-just-in-time-cloud-streaming-at-scale-millions.md) (2025-01-08): Synamedia Quortex Play and Quortex Link alternative comparison: HTTP Streaming score 11 out of 20, $36,000 for a 1000-viewer HD hour versus $63 on iReplay, and a monthly commitment over 12 months just to get time-shifting and DVR.
- [Which transcoding cloud providers provide the best video quality?](https://ireplay.tv/blog/cloud-transcoding-solutions-which-one-best-quality-fastest.md) (2025-01-08): Cloud transcoding quality across AWS Elemental MediaConvert, Google, Azure, Zencoder and encoding.com: all run ffmpeg x264, all optimise for speed over quality, and almost none publish a VMAF score. Includes how to measure VMAF, PSNR and SSIM yourself.
- [What is data overage in the context of a customer of an online video provider or a CDN?](https://ireplay.tv/blog/what-is-data-overage-cdn-video-provider-avoid-subscription-plans-usage-limits-protection.md) (2025-01-07): Data overage at an online video provider or CDN: how it happens, the real cost of 'unlimited' plans, monitoring usage against plan limits, optimising content to reduce transfer, and reading the overage fee schedule before signing.
- [Why the iPhone 15 Pro's AV1 Hardware Decoding is a Game Changer](https://ireplay.tv/blog/iphone-15-pro-av1-hardware-decoding-support.md) (2025-01-07): AV1 hardware decoding in the iPhone 15 Pro, and why it matters: roughly 30% better compression than HEVC, lower bandwidth bills for streaming platforms, better battery life than software decoding, and the pressure it puts on the rest of the industry to adopt AV1.
- [Paywall for live streaming and real-time payment solutions: credit card, Paypal, bitcoins or ethereum?](https://ireplay.tv/blog/paywall-for-live-streaming-paywall-live-stream-direct-real-time-payment-solutions-paypal-card-wallet-ethereum-bitcoin.md) (2025-01-07): Payment options for a live streaming paywall compared: Stripe (including WeChat and Alipay for China), PayPal across 200 countries and 25 currencies, and cryptocurrency wallets, plus what a ticket paygate is and why real-time payment confirmation matters.
- [Australia, New Zealand, China, Africa: how to adapt live streaming for remote locations](https://ireplay.tv/blog/how-to-do-remote-china-streaming-australia-streaming-africa-streaming-new-zealand-streaming.md) (2025-01-07): Adapting live streaming for remote and restricted regions: origin server placement near the source, edge and border CDN points of presence, HLS segment caching, compute at the edge, and China's ICP licence requirement. Argues failover architecture is mandatory.
- [The Power of Per Device Manifest Manipulation: Enhancing Video Streaming Experience](https://ireplay.tv/blog/per-device-manifest-manipulation-video-streaming-adaptive-bitrate-device-specific-optimizations.md) (2025-01-06): Per device manifest manipulation: generating a tailored HLS or DASH manifest per viewer from device capability and network conditions, covering dynamic manifest generation, bandwidth savings, DRM considerations, cross-platform handling, and the scalability problems it creates.
- [Kick.com: The New Kid on the Streaming Block Taking On Twitch](https://ireplay.tv/blog/what-is-kick-self-proclaimed-twitch-rival.md) (2025-01-05): Kick.com as a Twitch rival, founded December 2022: a 95% subscription revenue share against Twitch's 50% and YouTube's 70%, 100% of donations, same-day payouts, a deliberately Twitch-like interface, and the content-policy controversies.
- [Unlocking the Power of Addressable TV: A Deep Dive into Addressable Advertising](https://ireplay.tv/blog/addressable-advertising-addressable-tv-personalized-in-stream-advertisement-technical-components-best-practices.md) (2025-01-04): Addressable TV advertising in depth: how in-stream personalized ads are targeted by demographics, interests and viewing behaviour, the technical components that make the switch from content to ad imperceptible, and the practices that keep it clean.
- [Understanding the Power of Pop-Up TV Channels](https://ireplay.tv/blog/what-is-a-pop-up-ephemeral-tv-channel.md) (2025-01-04): Pop-up TV channels: temporary linear channels for tradeshows, sporting events, holidays and film marathons, used as interactive billboards before an event and as archives afterwards, plus template-driven automated video creation and what one costs to run.
- [Expert guide on how to correctly configure OBS Studio in <YYYY>](https://ireplay.tv/blog/transcoder-settings-tips-and-tricks-for-achieving-the-highest-video-quality-with-OBS.md) (2025-01-02): OBS Studio configuration guide: CPU x264 versus GPU encoding, 6 to 8 Mbps for 1080p H.264, CBR rate control for server compatibility, a 6 second keyframe interval, framerate choice, audio settings, and diagnosing dropped frames.
- [Top Dacast Alternatives and a Comprehensive Guide to Migrating from Dacast](https://ireplay.tv/blog/top-dacast-alternatives-and-a-comprehensive-guide-to-migrating-from-dacast.md) (2025-01-02): Five Dacast alternatives (Wowza Streaming Cloud, Vimeo Livestream, Brightcove, Kaltura and iReplay) compared by what each is actually good for, followed by a step-by-step guide to migrating content and streams off Dacast.
- [Vimeo's Innovative One-Take Video Editing Solution: A Game-Changer for Novice Creators](https://ireplay.tv/blog/ai-assisted-automation-vimeo-one-take-video-editing-solution-novice-creators-ai-script-generation-prompter-text-based.md) (2025-01-02): Vimeo's AI one-take video editing tools for beginners: AI script generation, a built-in daily prompter for people uncomfortable on camera, and text-based editing. Compared with Descript and the Timebolt plug-in.
- [Simplifying Video Editing with Descript: Unlocking the Power of One-Take Videos](https://ireplay.tv/blog/descript-video-editing-simplify-one-take-videos-transcription-automatic-captioning-collaboration-effortless-export.md) (2025-01-01): Descript for video editing: you edit the video by editing its text transcript, which makes one-take videos practical by deleting stumbles and pauses as text. Also covers automatic transcription, captioning, collaboration and export.
- [Cheaper and Better: alternative to Vimeo and Livestream.com 'Fair Usage 2TB threshold' and expensive yearly plans and support](https://ireplay.tv/blog/top-10-alternatives-to-vimeo-livestream-premium-video-experience-platform-high-quality-fair-usage-2tb-threshold.md) (2024-12-31): Vimeo and Livestream.com alternative comparison: HTTP Streaming score 13 out of 20, $847.80 for a 1000-viewer HD hour versus $63 on iReplay and $37,067.80 with professional services, plus the 'fair usage 2TB threshold' policy and a 5.5 Mbps ceiling.
- [How We Made a Video Player Faster and More Flexible for a Broadcaster's Streaming App](https://ireplay.tv/blog/streaming-video-player-avplayer-flexible-user-interface-user-experience-fast-easily-maintain.md) (2024-12-31): Case study of unifying four XIB-based iPhone and iPad video players into one code-based Swift and UIKit player on AVPlayer, covering SVOD, PVOD, AVOD, linear, live sport and movies, with DRM and short HLS segments, Picture-in-Picture and explicit main-thread management.
- [Correct frame rate per second in OBS Studio and other transcoders and best practices for an optimal viewing experience](https://ireplay.tv/blog/obs-studio-frame-rame-fps-best-practices-proper-video-experience-respecting-creators-directors-original-sources-edits.md) (2024-12-31): Frame rate for streaming, and why providers that downconvert damage the source: Vimeo drops to 30 fps, destroying one frame in five of a 50 fps stream. Argues for preserving the source rate, including 23.976, 29.97 and 59.94, across mixed-rate VOD2Live channels.
- [How does an online video provider differ from YouTube?](https://ireplay.tv/blog/youtube-alternative-monetization-control-pay-per-view-premium-member-exclusive-payment-gateway-subscription.md) (2024-12-31): How an online video provider differs from YouTube and other UGC platforms: recommendation algorithms that promote competitors, limited ad formats, higher commission rates, and OVP features YouTube lacks such as pay-per-view, member-exclusive streaming and payment gateway integration.
- [Cheaper and Better: alternative to Boxcast subscription plans, add-ons and paywall commissions](https://ireplay.tv/blog/top-10-alternatives-boxcast-live-event-streaming-video-broadcasting-platform.md) (2024-12-30): Boxcast alternative comparison: $1,380 for a free 1000-viewer HD event and $3,880 once a $10 paywall adds commission, versus $63 on iReplay. Covers the Boxcaster hardware encoder and why 'unlimited' plans still meter storage and bandwidth.
- [Understanding the Mac Mini DTK: A Key Step in Apple's Transition to Apple Silicon](https://ireplay.tv/blog/mac-mini-dtk-apple-iOS-developer-migration-to-apple-silicon-arm-based-developers.md) (2024-12-30): The Mac Mini Developer Transition Kit Apple shipped in 2020 to prepare developers for Apple Silicon: an A12Z Bionic chip, 16GB RAM, 512GB SSD and a macOS Big Sur beta, and what using one revealed about the Intel to ARM migration.
- [Streamlining Your Revenue Stream: Unpacking Video Paywall Solutions for Live Streaming](https://ireplay.tv/blog/video-paywall-solution-youtube-video-paywall-solutions.md) (2024-12-29): Video paywall solutions for live streaming: what a paywall actually restricts, why it matters for revenue, content control and piracy resistance, and the criteria for choosing one, starting with payment flexibility.
- [How to remove Related Videos on embedded Youtube videos and other tips to keep your audience on your website](https://ireplay.tv/blog/how-to-remove-related-videos-on-embedded-youtube-videos-and-other-solutions-tips-to-keep-your-audience-on-your-website.md) (2024-12-29): Removing related videos from an embedded YouTube player with the ?rel=0 parameter, and using the YouTube IFrame Player API onStateChange event to detect state 0 (ended) and redirect the viewer to your own page instead of YouTube's suggestions.
- [Autoshow TV: Revolutionizing Car Enthusiasm and Professional Showcasing with Addressable TV, Dynamic Content and Fast Deployment](https://ireplay.tv/blog/automatic-dooh-digital-signage-for-cars-professionals-autoshow-app-store-personalized-addressable-tv.md) (2024-12-28): Autoshow TV, a car-focused addressable TV app: hourly automatic content updates, personalized channels, HLS interstitials for ad support or subscription, and how Swift and SwiftUI templates cut the App Store deployment cycle.
- [Engaging the Viewer: Unleashing the Potential of Interactive Streaming with HLS Alternate Video Tracks](https://ireplay.tv/blog/unique-differentating-streaming-feature-app-point-of-view-multi-angle-multicam-director-hls-alternate-video-track.md) (2024-12-28): HLS alternate video tracks as an underused route to interactive streaming: viewer-chosen camera angles and points of view inside one stream. Traces the idea to MPEG-4 BIFS at Envivio under Yuval Fisher, and covers what still blocks adoption.
- [Exploring the World of VIP Live Stream Access: Unlocking Exclusive Online Experiences](https://ireplay.tv/blog/vip-live-stream-access-from-live-streaming-to-vod-archive-to-24-7-streaming-channels.md) (2024-12-27): VIP live stream access as a model beyond OnlyFans: paywalled live sessions for musicians, artists, fitness coaches and educators, how the archive becomes VOD, how both feed a 24/7 channel, and the paygate technical setup.
- [FAST 2.0 Strategy: Building Brand Resilience Amid Channel Diversity](https://ireplay.tv/blog/fast-2-solution-fast-2-strategy-building-brand-resilience-personalization-own-app-personalized-content-viewers.md) (2024-12-27): FAST 2.0 and the risk in depending on Samsung TV Plus, Roku, Amazon Fire TV and other aggregators to reach viewers. Argues channel owners need their own app and a direct audience relationship, since the platform's agenda is not theirs.
- [Professional Video Streaming Platforms: Elevating Quality and ROI in Live Streaming, VOD, and 24/7 TV Channels](https://ireplay.tv/blog/live-streaming-services-top-streaming-platforms-quality-roi-livestreaming-for-professionals-vod-paywall-24-7-tv-channel.md) (2024-12-26): Professional video streaming platforms compared for live, VOD and 24/7 channels: iReplay.TV with a dedicated video expert per event and two-minute channel creation, against Vimeo, Brightcove, Kaltura and Wistia.
- [KSG TV, an iOS and iPadOS streaming app with curated channels by viewers](https://ireplay.tv/blog/how-to-create-unlimited-vod2live-virtual-channels-ksg-tv-example-kid-safe-gaming-tv-channel.md) (2024-12-26): KSG TV, a Kid-Safe Gaming streaming app for iOS and iPadOS built by a father and child: 24/7 ad-free and tracking-free channels, unlimited VOD2Live channels viewers curate themselves, HLS interstitials, in-app purchases and App Store compliance.
- [The Evolution of Playout Software: From Windows Workstations to Browser and Cloud-Based Solutions](https://ireplay.tv/blog/playout-software-windows-workstation-desktop-cloud-browser-migration.md) (2024-12-25): How playout software moved from dedicated Windows workstations, with their hardware requirements and on-site maintenance, to browser-based control and then to cloud playout, and what each shift changed for scalability and cost.
- [The Future of Retail: Live Streaming Shopping](https://ireplay.tv/blog/the-future-of-retail-live-streaming-shopping-impact-on-e-commerce.md) (2024-12-23): Live stream shopping and its effect on e-commerce: born in China where Alibaba's Singles Day generated $74.1 billion in 2020, much of it through live streams, now being tested by Amazon and Facebook, and the technology stack behind it.
- [Exploring Twitch Alternatives: A New Era of Game Streaming Platforms](https://ireplay.tv/blog/game-streaming-platforms-like-twitch-streaming-platforms-for-gaming.md) (2024-12-23): Game streaming platforms after Twitch's multistreaming ban and Mixer's 2020 shutdown: what Kick.com, Trovo.Live and iReplay.TV each offer creators looking for reach or for ownership, and how to choose between them.
- [What is media asset management (also known as digital asset management)?](https://ireplay.tv/blog/what-is-a-media-asset-management-aka-digital-asset-management.md) (2024-12-23): Media asset management (MAM), also called digital asset management: the asset repository, metadata management, user interface, workflow automation and access control that make up a system, and how metadata drives search, collaboration and compliance.
- [What are the best strategies for a video content owner or distributor to expand the options for delivering their content as linear TV channels?](https://ireplay.tv/blog/business-growth-hacking-as-a-video-content-owner-distributor-how-can-optimize-content-delivery-as-linear-tv-channels.md) (2024-12-23): Five tiers for distributing a video catalogue as linear channels: free ad-supported FAST, ad-free premium subscription, curated thematic channels, channels programmed by named curators or influencers, and channels the audience customises itself.
- [IBC 2023 Amsterdam: Will Cloud Still Take the Center Stage?](https://ireplay.tv/blog/ibc-2023-amsterdam-broadcast-tradeshow-cloud-aws-elemental-azure-media-services-center-stage.md) (2024-12-23): IBC 2023 preview questioning whether cloud still dominates broadcast, after the Azure Media Services retirement and slowing AWS growth. Examines the vendor lock-in behind the flexibility promise, the real cost equation, and Basecamp's move off the cloud.
- [How to check that your uploaded or imported files are complete in a Media Asset Management system?](https://ireplay.tv/blog/fully-uploaded-imported-files-media-asset-management-system.md) (2024-12-23): Verifying that uploaded or imported media files are complete by comparing MD5 checksums, with the exact commands: certutil -hashfile and Get-FileHash on Windows, md5 on macOS. Your provider should expose the hash for every stored file.
- [NAB 2023 Trends: forced march to the cloud, targeted advertising, FAST channels, Cloud playout](https://ireplay.tv/blog/las-vegas-nab-nabshow-2023-trends-forced-march-to-cloud-aws-azure-google.md) (2024-12-22): NAB Show 2023 trends: broadcast vendors pushed onto AWS whether customers want it or not, the Amazon Basics and Marketplace precedent those vendors should fear, targeted advertising, FAST channels and cloud playout.
- [Enhancing Your Free Ad-Supported TV (FAST) Channel with Fast Channel Playout](https://ireplay.tv/blog/fast-channel-playout-system-broadcast-playout-fast-channel-tv-playout-systems-automation-broadcast-video-playout-server.md) (2024-12-22): Playout systems for FAST channels: automating scheduling, content ingest and commercial insertion, keeping transitions clean between live feeds, pre-recorded shows and adverts, and running 24/7 without manual intervention. References Amagi and Zype.
- [A Comprehensive Guide to Live Streaming Equipment for Beginners](https://ireplay.tv/blog/live-streaming-equipment-live-stream-setup-for-beginners-twitch-gaming-pc-software-hardware.md) (2024-12-22): Live streaming equipment for beginners: camera (webcam versus DSLR with clean HDMI), microphone, computer, internet connection and software, then setups for Twitch, gaming and multi-camera, including YoloLiv, Switcher Studio and OBS with GPU acceleration.
- [Graduation Live Streaming: Ensuring Reliable Video Playback, Quality, and Global Viewership](https://ireplay.tv/blog/graduation-ceremony-live-streaming-reliable-video-playback-quality-global-platform-technical.md) (2024-12-22): Live streaming a graduation ceremony: playback reliability with a pre-recorded fallback if the stream fails, resolution high enough for families to recognise a face crossing the stage, and delivering to viewers spread worldwide.
- [Broadcast and Streaming Events <YYYY>](https://ireplay.tv/blog/streaming-broadcast-conferences-tradeshows-meetups-calendar-dates-ibc-nab-show.md) (2024-12-21): Calendar of broadcast and streaming industry events through the year: Mile-High Video in Denver, MWC Barcelona, Connected TV World Summit, NAB Show, CABSAT Dubai, BroadcastAsia Singapore, Streaming Tech Sweden, IBC Amsterdam and Demuxed.
- [Bitrate vs Resolution? What about Bits Per Pixel? A Dive into Transcoding Expertise](https://ireplay.tv/blog/bitrate-resolution-how-does-bitrate-affect-video-quality-bits-per-pixels-bpp-right-metrics-used-by-transcoding-experts.md) (2024-12-20): Bits per pixel (BPP) as the metric transcoding experts use instead of arguing bitrate against resolution, and why a provider recommending 2 Mbps for 1080p H.264 should not be trusted. Written from experience at Envivio, now Ericsson MediaKind.
- [Twitch Implements Ban on Multi-Streaming: A Closer Look at the Simulcasting Policy Change](https://ireplay.tv/blog/twitch-multistreaming-simulcasting-multi-streaming-ban-forbidden-simulcast-other-services.md) (2024-12-20): Twitch extending its ban on simulcasting from partners and affiliates to every streamer, what it means for creators who relied on reaching YouTube and Facebook Gaming audiences at the same time, and how the platform landscape responded.
- [Azure Media Services retirement: why now is the good time to consider non-GAFAM alternatives](https://ireplay.tv/blog/azure-media-services-retirement-encoding-packaging-on-demand-encoding-live-streaming-content-protection.md) (2024-12-19): Microsoft Azure Media Services retires on 30 June 2024. Analysis of why it failed to differentiate, what the migration options are, and the argument for non-GAFAM alternatives, including Amazon Prime Video's own move from microservices back to a monolith that cut costs 90%.
- [How to launch local TV channels in <YYYY> ?](https://ireplay.tv/blog/how-to-launch-a-local-tv-channel-easily.md) (2024-12-19): Launching a local or regional TV channel: content mix of news, weather, local sport, community events, public service announcements and religious programming, plus automated video creation from text and images using After Effects templates.
- [How to reduce Amazon CloudFront costs in the context of streaming or live streaming while maintaining reliability and video quality?](https://ireplay.tv/blog/how-to-reduce-amazon-aws-cloudfront-costs-reduction-savings-while-maintaining-reliability-and-quality.md) (2024-12-19): Cutting Amazon CloudFront streaming costs: regional pricing traps, what happens when cloud credits expire, using a second delivery provider with player failover rather than CloudFront alone, and the 2021 AWS outages that left one OVP unable to restore any customer stream.
- [PlayReady DRM Vulnerability: A Looming Challenge for Media Security](https://ireplay.tv/blog/playready-drm-vulnerability-media-security-key-leaks-protection-copyright.md) (2024-12-18): The PlayReady DRM breach: a Microsoft engineer uploaded debug information to a public forum, exposing unpublished details of the Warbird obfuscation system along with DRM constants and keys, with the PDB symbol database left publicly reachable.
- [What about the new QUERYPARAM tag added in HLS specifications?](https://ireplay.tv/blog/what-is-the-new-query-param-hls-tag-added-to-hls-version-13.md) (2024-12-17): The QUERYPARAM attribute of EXT-X-DEFINE, added in HLS draft version 13 at WWDC 2023, lets a playlist read a value straight from its own URL query string. Enables personalization, A/B testing and ad insertion without generating a playlist per viewer.
- [Rethinking the Necessity of Streaming Servers for VOD: Reimagining Content Delivery Without CDNs](https://ireplay.tv/blog/vod-streaming-without-cdn-http-streaming-myths-cdn-alternatives-for-vod.md) (2024-12-17): Whether VOD actually needs a dedicated CDN. Argues that because HTTP streaming is already segmented and cacheable, a CDN is not always obligatory for VOD, and that CDN marketing often oversells old technology at premium prices.
- [In video what is a 'slate' and how is it better for your viewers than a 'Sorry this media is offline' message?](https://ireplay.tv/blog/sorry-this-media-is-offline-video-slate-not-available-content-placeholder-experience-audience-engagement.md) (2024-12-17): What a video slate is: a branded placeholder shown when no live or on-demand content is available, and why it retains viewers better than a 'Sorry, this media is offline' error. Covers announcing upcoming streams and falling back to the latest video.
- [Streaming Password Sharing: The Netflix example](https://ireplay.tv/blog/streaming-password-sharing-netflix-hbo-disney-what-about-tokens.md) (2024-12-16): Password sharing at Netflix, HBO and Disney+, and why token-based access is the better mechanism for live events: tokens expire, scale to millions of simultaneous logins, and can carry per-event permissions instead of granting the whole library.
- [The Need for Speed: Why Cloud Transcoding Services Focus on Speed in Video Encoding](https://ireplay.tv/blog/video-encoding-everything-you-need-to-know-what-is-hidden-with-high-quality-and-fast-cloud-transcoding-services.md) (2024-12-16): Why cloud transcoding services optimise for speed rather than quality: encoding is a compute-time trade-off, and faster settings mean lower quality at the same bitrate. Covers encoding versus transcoding, ABR ladders, and what to ask an encoding service.
- [How to monetize a video back catalogue?](https://ireplay.tv/blog/generate-revenue-from-previously-released-video-content.md) (2024-12-15): Monetising a video back catalogue through subscription, ad-supported streaming, rental or purchase, licensing and physical media, then turning the catalogue into automatically generated tag-based virtual channels to carry advertising.
- [How much traffic does a live stream consume and do I really need to know that ?](https://ireplay.tv/blog/video-usage-data-traffic-for-online-live-streaming-cdn-bandwidth-calculator-internet-egress-costs.md) (2024-12-15): How much data a live stream consumes, the formula for calculating it at a given bitrate, and why billing on data transfer rather than duration pushes broadcasters to lower quality. Compares traffic pricing across CloudFront, Dacast, Castr and Vimeo.
- [On-the-fly manifest manipulation: user-generated channels or fully personalized TV channels](https://ireplay.tv/blog/dynamic-on-the-fly-manifest-manipulation-user-generated-channels-fully-personalized-tv-channels-demo.md) (2024-12-15): On-the-fly manifest manipulation for user-generated and fully personalized channels, with a live example where viewers pick the next song on a 24/7 music channel by button or QR code. Covers the common manifest manipulation use cases.
- [What is the recommended encoding ladder ?](https://ireplay.tv/blog/encoder-create-a-suitable-transcoding-ladder.md) (2024-12-14): Encoding ladder design: why one ladder does not fit mobile, tablet, desktop and set-top box, how to serve a different ladder per device, whether 144p QCIF still earns a rung, and what to watch for pristine video quality.
- [Why Launching a Streaming Platform on Apple's Ecosystem is a Smart Move?](https://ireplay.tv/blog/launching-a-streaming-platform-which-ecosystem-first-apple-or-web.md) (2024-12-13): Why to launch a streaming platform on Apple's ecosystem first: a user base that pays, App Store billing at 15% in year one and 10% under the Small Business Program, ecosystem integration, App Store visibility, and privacy as a selling point.
- [OBS: Is High Profile the Better Choice? Main vs. High Profile in <YYYY>?](https://ireplay.tv/blog/obs-high-vs-main-profile-h264-which-recommended.md) (2024-12-12): OBS H.264 profile choice: High Profile versus Main Profile. Concludes there is no remaining reason to pick Main, since every modern decoder handles High and High gives better quality at the same bitrate.
- [How to promote a paywall live stream on YouTube, Instagram, Tik Tok, Facebook, Twitch and other social media platforms?](https://ireplay.tv/blog/how-to-increase-visibility-and-drive-views-to-a-paywall-live-stream-on-youtube-instagram-tiktok-facebook-twitch.md) (2024-12-12): Promoting a paywalled live stream using simulcast (restreaming) to YouTube, Instagram, TikTok, Facebook and Twitch at once, which services do it, and how teasing the opening minutes on free platforms drives viewers to the paid event.
- [MAM vs. LMS: Understanding the Key Differences for Content Management](https://ireplay.tv/blog/media-asset-management-digital-learning-management-system-content-integration.md) (2024-12-12): MAM versus LMS: media asset management handles images, audio, video and documents for broadcast, publishing and marketing, while a learning management system handles e-learning content and delivery. Which one an organisation actually needs.
- [Expanding Your Reach: The Power of a Single IP TV Channel for YouTubers](https://ireplay.tv/blog/single-ip-tv-channel-youtubers-monetization-models-fast-premium.md) (2024-12-11): Running a Single IP TV channel alongside a YouTube channel: a dedicated linear channel carrying only your own content, reaching Roku and Apple TV audiences, monetized either as a FAST channel with targeted advertising or as a premium subscription.
- [Why 'Cost Per Viewer' is the Key to Maximizing ROI in Pay-Per-View Live Streaming](https://ireplay.tv/blog/maximum-cost-per-viewer-for-pay-per-view-live-streaming-optimize-roi-return-on-investment-for-better-margins.md) (2024-12-11): Cost Per Viewer (CPV) as the metric for pay-per-view live streaming: total production and promotion cost divided by viewers, how it sets ticket pricing, and a comparison of maximum CPV for a 1080p stream across CDN vendors.
- [Leverage Google Analytics for Better Podcast Audience Insights with iReplay.TV](https://ireplay.tv/blog/google-analytics-podcast-audience-insights-user-behavior-demographics-conversion-rates.md) (2024-12-11): Using Google Analytics for podcast audience analysis on iReplay.TV: setting up a property and tracking code, reading listener geography and demographics, tracking retention and session duration, and using content preferences to shape episodes.
- [Maximizing Reliability for Live Streaming Events: Proven Strategies for Success](https://ireplay.tv/blog/how-to-optimize-a-live-streaming-for-performance-and-quality.md) (2024-12-09): Reliability checklist for paid live streaming events: platform selection, wired internet, rehearsals, running software and hardware transcoders in parallel for redundancy, HLS push versus RTMP ingest, HLS failover support, and real-time monitoring with technical support.
- [How to create VOD2Live or FAST channels for kids?](https://ireplay.tv/blog/creating-vod2live-fast-channels-for-children.md) (2024-12-09): Building kids' VOD2Live or FAST channels from an existing catalogue: tagging content by age and genre in a media asset manager, then generating automated linear channels from those tags so children discover shows instead of navigating a VOD grid.
- [How to launch a fitness streaming platform?](https://ireplay.tv/blog/fitness-gym-virtual-coaching-personalized-workout-plan-tv-channel-programs.md) (2024-12-09): Launching a fitness streaming platform or virtual gym coaching service: on-demand and scheduled workout delivery, personalised programmes by level and goal, catalogue variety, and running the library as a linear channel.
- [How to safeguard your children from YouTube's algorithms, ads, comments, and chat while still giving them access to select videos or channels? (It also works for yourself)](https://ireplay.tv/blog/protecting-your-kids-from-youtube-algorithms-comments-chat-ads-how-to-provide-safe-video-access.md) (2024-12-09): Converting a YouTube channel, playlist or single video into a private video podcast so children watch without ads, comments, chat, recommendations or the algorithm, and can download episodes for offline viewing in any podcast app.
- [Exploring the Power of Streaming Encoders for Seamless Live Broadcasting](https://ireplay.tv/blog/streaming-encoder-hdmi-sdi-4k-hd-recommended-live-streaming-encoders.md) (2024-12-09): Hardware streaming encoders for live production: IP, HDMI and SDI input types and what each suits, how compression to H.264 or H.265 fits the available upload, and specific units including the Monarch HDX and LiveU.
- [Enabling a Separate Twitch Audio Track in OBS Studio: A Guide to Avoiding Copyright Issues](https://ireplay.tv/blog/obs-studio-streaming-music-on-twitch-avoid-twitch-copyright-issue-with-dedicated-audio-track-for-vod.md) (2024-12-08): Configuring multi-track audio in OBS Studio so music sits on a separate track from the Twitch stream, letting you archive VODs without Content ID muting them. Includes the Output and Recording settings and the audio device setup.
- [What are VOD2Live and AOD2Live, and how can I use them?](https://ireplay.tv/blog/what-is-vod2live-aod2live-what-can-i-with-my-prerecorded-audio-video-content-shows.md) (2024-12-08): VOD2Live and AOD2Live defined: turning pre-recorded video or audio into a scheduled live stream so a catalogue becomes a 24/7 channel or radio station, the way YouTube Premiere and Watch Together work.
- [Rethinking Live Streaming: Can You Skip the CDN and Still Succeed?](https://ireplay.tv/blog/live-streaming-without-a-cdn-manifest-manipulation-buffer-control-latency-not-a-concern.md) (2024-12-07): Whether live streaming can skip the CDN. Argues yes when latency is not the priority, as with webinars, concerts, conferences and single-country events, using manifest manipulation and buffer control instead. Covers the real trade-offs.
- [How to reduce bandwidth costs from my existing online video provider?](https://ireplay.tv/blog/how-to-save-on-traffic-costs-from-my-existing-ovp-for-live-streaming.md) (2024-12-07): Cutting bandwidth costs by adding a cheaper secondary provider as an HLS repeater and letting player failover choose it, keeping the original provider as fallback. Notes some providers charge more than 15x iReplay's bandwidth rate.
- [Add Google Analytics Real Time to any (live) stream for performance analysis](https://ireplay.tv/blog/integrate-google-analytics-real-time-with-any-live-stream.md) (2024-12-07): Sending Google Analytics real-time events from a video player to report the resolution each viewer actually receives, with geographic data, and using the iReplay HLS repeater to add this to a stream hosted with another provider.
- [Why is it important to monitor live streams?](https://ireplay.tv/blog/in-browser-live-stream-monitoring-solution.md) (2024-12-07): Why live streams need active monitoring: content moderation, catching buffering and audio faults before viewers complain, reading engagement in real time, and protecting brand reputation, with in-browser monitoring as the alternative to dedicated hardware.
- [Mastering Video Monetization: Unleash the Potential of Your Content](https://ireplay.tv/blog/video-monetization-strategies-mastering-video-content-monetizing.md) (2024-12-07): Video monetization models compared: advertising with its subscriber and watch-hour thresholds, subscriptions, sponsorships and merchandise, plus the payment rails (Stripe, PayPal, bank transfer, crypto) and the common obstacles to getting paid.
- [Twitch Relaxes Exclusivity Rules for Partners and Affiliates: What You Need to Know?](https://ireplay.tv/blog/twitch-exclusivity-rules-now-less-rectrictive-still-limitations-to-multistream-long-form-multistreaming-youtube-facebook.md) (2024-12-06): Twitch dropping the exclusivity requirement for partners and affiliates on 23 August 2023, and what still applies: no extended simultaneous streaming to YouTube or Facebook, with short-form mobile services such as TikTok and Instagram Live exempt.
- [What is NextGen TV aka ATSC 3.0?](https://ireplay.tv/blog/what-is-nextgen-tv-astc-3-0.md) (2024-12-05): NextGen TV, the consumer name for ATSC 3.0: 4K resolution, advanced audio, mobile reception and interactive features, delivered as a broadcast-hybrid mix of over-the-air video plus internet-delivered targeted advertising and program guides.
- [The Ultimate Guide to Video Aspect Ratio: Why It Matters and How to Optimize Yours](https://ireplay.tv/blog/video-aspect-ratio-video-aspect-ratios-tv-cinematic-mobile-vertical-landscape.md) (2024-12-05): Video aspect ratios explained: 4:3, 16:9, 9:16 vertical for TikTok and Instagram, and 2.35:1 cinematic. Argues for preserving the source ratio, using letterboxing or pillarboxing rather than cropping, and matching the encoding ladder to it.
- [How to reduce the network usage for some corporate live streaming within the company offices](https://ireplay.tv/blog/reduce-network-usage-for-corporate-live-streaming-on-companies-lan-multicast.md) (2024-12-04): Using VLC as a multicast streaming server to cut network load when a corporate live stream reaches multiple offices, with the RTP setup steps on sender and receivers, and the router and switch configuration multicast requires.
- [How can you increase your YouTube channel's audience while reducing your reliance on YouTube?](https://ireplay.tv/blog/youtube-videos-video-recycling-fast-tv-channels-monetization-audience-retention-sponsors-visibility-tv-app-android-ios.md) (2024-12-04): Reducing dependence on YouTube by recycling existing YouTube videos into a FAST channel: dedicated apps on Android, iOS and connected TV, increased watch time, sponsors on your own terms, and no recommendation engine sending viewers to competitors.
- [Elevating Your Streaming Experience: The Benefits of a Dedicated PC for PC Game Streaming](https://ireplay.tv/blog/use-additional-second-additionary-pc-for-game-streaming-better-performance-gpu.md) (2024-12-04): Why a second dedicated PC for game streaming beats encoding on the gaming machine: the game keeps the GPU and frame rate it was tuned for while encoding and upload move elsewhere, removing the frame drops and stutter of a single-PC setup.
- [Live streaming always buffering? Get an immediate and free audit from a streaming expert](https://ireplay.tv/blog/buffering-live-streaming-issues-what-wrong-fix-obs-vmix.md) (2024-12-03): Auditing a buffering live stream: pre-event equipment and bitrate testing, monitoring during the event, live troubleshooting, and post-event analysis. Aimed at paid events on self-service platforms where nobody diagnoses the problem for you.

## Glossary of streaming and broadcast terms (68)

- [What is MLVC (Machine Learning Video Codec)?](https://ireplay.tv/video-streaming-definitions/what-is-mlvc-machine-learning-video-codec.md): MLVC (Machine Learning Video Codec) is Microsoft's neural codec, open-sourced in July 2026 under MIT, where the trained weights are the format rather than a bitstream specification. Runs on laptop and phone NPUs, 18.3 million parameters, and claims 75.5% less bitrate than hardware H.265 at 360p.
- [What is DRM?](https://ireplay.tv/video-streaming-definitions/what-is-drm-digital-rights-management.md): DRM (Digital Rights Management) covers the encryption, licensing, authentication and copy protection that restrict how video is accessed and played, implemented in streaming through Widevine, PlayReady and FairPlay across different device families.
- [What is MSE?](https://ireplay.tv/video-streaming-definitions/what-is-mse-media-source-extensions.md): MSE (Media Source Extensions) is the HTML5 API that lets JavaScript feed media data directly to a browser video element, which is what makes hls.js, Shaka Player and every custom ABR player possible. Codec agnostic, supported in all major browsers.
- [What is a GOP?](https://ireplay.tv/video-streaming-definitions/what-is-a-gop-group-of-pictures.md): A GOP (Group of Pictures) is one keyframe followed by the P-frames and B-frames that reference it. GOP size and keyframe interval mean the same thing, and tuning it trades bitrate against random access and error resilience.
- [What is L4S in the context of streaming?](https://ireplay.tv/video-streaming-definitions/what-is-l4s-low-latency-low-loss-scalable-throughput.md): L4S (Low Latency, Low Loss, Scalable throughput) cuts queuing delay in internet packet delivery through active queue management, keeping latency low even under network congestion. Recognised in industry standards and part of UNEXT.
- [What is simulcasting also known as restreaming?](https://ireplay.tv/video-streaming-definitions/what-is-simulcasting-restreaming-relaying.md): Simulcasting, also called restreaming, is broadcasting one live stream to several platforms at once (Facebook, YouTube, Twitch and others) to reach a wider audience, at the cost of managing chat and feedback in several places simultaneously.
- [What is an IDR?](https://ireplay.tv/video-streaming-definitions/what-is-an-idr-instantaneous-decoder-refresh.md): An IDR (Instantaneous Decoder Refresh) frame is a keyframe that also flushes the decoder's reference buffer, stopping error propagation and giving a clean seek point. Not every I-frame is an IDR.
- [What is a segment?](https://ireplay.tv/video-streaming-definitions/what-is-a-segment-chunk-fragment.md): A segment is a few seconds of media delivered as one independently fetchable file, packaged as fMP4, MPEG-TS or WebM. Segments are what make ABR possible, since each one exists at every bitrate in the ladder.
- [What is a keyframe interval?](https://ireplay.tv/video-streaming-definitions/what-is-a-keyframe-interval-key-frame-period-gop-size.md): The keyframe interval is the number of frames between consecutive keyframes. Also called GOP size, IDR interval and I-frame interval, all interchangeable. Shorter intervals cost bits, longer ones hurt seeking and error recovery.
- [What is a codec?](https://ireplay.tv/video-streaming-definitions/what-is-a-codec.md): A codec (coder plus decoder) is the software or hardware that compresses media for transmission and reconstructs it for playback. Common video codecs are H.264, H.265, VP9 and AV1; common audio codecs are AAC, MP3 and Opus.
- [What is Coalition for Content Provenance and Authenticity ?](https://ireplay.tv/video-streaming-definitions/what-is-cp2a-authenticity.md): C2PA (Coalition for Content Provenance and Authenticity) is an open standard from Adobe, Microsoft, Intel, Twitter and Truepic for attaching verifiable provenance metadata to images, video and audio, so viewers can tell whether media has been manipulated.
- [What is a POP?](https://ireplay.tv/video-streaming-definitions/what-is-a-pop-point-of-presence.md): A POP (Point of Presence) is a physical network location where ISPs and CDNs interconnect and cache content close to users. POP placement determines latency, peering quality and redundancy for a delivery network.
- [What is Content Adaptive Encoding (CAE)?](https://ireplay.tv/video-streaming-definitions/what-is-content-adaptive-encoding.md): Content Adaptive Encoding (CAE) analyses a video scene by scene and varies the encoding parameters per section, giving high-motion or detailed passages more bits and static passages fewer, cutting bitrate and storage without visible quality loss.
- [What is single-frame watermarking?](https://ireplay.tv/video-streaming-definitions/what-is-single-frame-watermarking.md): Single-frame watermarking embeds identifying information into individual video frames to deter unauthorised copying, using spatial domain, frequency domain, least significant bit or spread spectrum techniques, then extracting the mark to verify provenance.
- [What is HbbTV (Hybrid Broadcast Broadband TV) ?](https://ireplay.tv/video-streaming-definitions/what-is-hbbtv-hybrid-broadcast-broadband-tv.md): HbbTV (Hybrid Broadcast Broadband TV) is the open standard that layers broadband services onto a broadcast signal: catch-up, VOD, EPG, targeted advertising and interactive apps built with HTML5, CSS and JavaScript on top of DVB, plus second-screen sync.
- [What is an encoding profile?](https://ireplay.tv/video-streaming-definitions/what-is-an-encoding-profile.md): An encoding profile is the set of coding tools and constraints a codec is allowed to use, such as H.264 Main and High or the equivalents in HEVC and VP9. It determines both compression efficiency and which decoders can play the result.
- [What is the playlist type in HLS?](https://ireplay.tv/video-streaming-definitions/what-is-the-hls-playlist-type-event-vod.md): EXT-X-PLAYLIST-TYPE declares an HLS playlist as VOD (complete, nothing more will be added) or EVENT (live, segments appended and never removed, which is what enables start-over and rewind). Absent, the playlist is assumed to be a sliding live window.
- [What is TV as a Service?](https://ireplay.tv/video-streaming-definitions/what-is-tv-as-a-service.md): TV as a Service delivers television over the internet on a recurring subscription rather than as a cable or satellite package, giving viewers per-service choice and providers a direct customer relationship, personalization and recurring revenue.
- [What is Buffering?](https://ireplay.tv/video-streaming-definitions/what-is-buffering.md): Buffering is the player preloading media into memory so playback survives network fluctuation: initial preload, continuous refill during playback, and the buffer duration that determines how long a connection can stall before the viewer sees it.
- [What is a streaming protocol?](https://ireplay.tv/video-streaming-definitions/what-are-streaming-protocols.md): The common streaming protocols and what each is for: HLS and MPEG-DASH for segmented HTTP delivery, RTMP for low-latency ingest, WebRTC for real-time two-way communication, RTSP for controlling media servers, and Microsoft Smooth Streaming.
- [What is WHIP?](https://ireplay.tv/video-streaming-definitions/what-is-whip.md): WHIP (WebRTC HTTP Ingest Protocol) is the standard way for a WebRTC encoder to push a media stream into a media server over HTTP, giving contribution workflows sub-second latency without a bespoke signalling layer.
- [What is CMCD?](https://ireplay.tv/video-streaming-definitions/what-is-cmcd-common-media-client-data.md): CMCD (Common Media Client Data) is a Streaming Video Alliance specification letting a player report buffer length, bitrate, duration and frame rate to the CDN in its HTTP requests, so delivery can be tuned per client.
- [What is MPEG V3C immersive video?](https://ireplay.tv/video-streaming-definitions/what-is-mpeg-v-pcc-immersive-video.md): V-PCC (Video-based Point Cloud Compression) compresses point cloud data, the sets of 3D coordinates describing an object's surface, so volumetric video can be stored and transmitted. Part of the V3C family used for 3D and XR applications.
- [What is a transcoding ladder?](https://ireplay.tv/video-streaming-definitions/what-is-a-transoding-ladder.md): A transcoding ladder is the set of renditions of one video encoded at different bitrates and resolutions, from which an ABR player picks. Explains why a single one-fits-all ladder underserves both low-bandwidth connections and high-end devices.
- [What is ABR?](https://ireplay.tv/video-streaming-definitions/what-is-abr-adaptive-bitrate-streaming.md): ABR (Adaptive Bitrate Streaming) encodes one video at several bitrates and lets the player switch between them mid-playback as bandwidth and device capability change, using a manifest that lists every available rendition.
- [What's a transcoder, what's the difference with an encoder?](https://ireplay.tv/video-streaming-definitions/what-is-a-transcoder-differences-with-an-encoder.md): A transcoder decodes an existing video file and re-encodes it at a different codec, resolution or bitrate, which is how ABR renditions get made. Contrasted with an encoder, which compresses raw video for the first time.
- [What is SGAI aka Server Guided Ad Insertion](https://ireplay.tv/video-streaming-definitions/what-is-sgai-server-guided-ad-insertion-interstitials-dai.md): SGAI (Server Guided Ad Insertion) is the hybrid of CSAI and SSAI: the server publishes ad opportunities in a common manifest and the client fetches and inserts the ad itself, avoiding CSAI's playback stutter and SSAI's server cost. Also used for bumpers.
- [What is SSAI?](https://ireplay.tv/video-streaming-definitions/what-is-ssai-server-side-ad-insertion.md): SSAI (Server-Side Ad Insertion) stitches advertisements into the video stream on the server rather than in the player, so ad blockers cannot strip them. Covers ad decisioning, per-viewer targeting and impression reporting.
- [What is WebRTC and how is it different from HTTP Streaming?](https://ireplay.tv/video-streaming-definitions/what-iw-webrtc-differences-with-http-streaming.md): WebRTC is a set of open protocols and browser APIs for real-time peer-to-peer audio and video, built for sub-second interactive use. Differs from HLS and DASH, which are segmented, server-delivered and one-way.
- [What is HLS?](https://ireplay.tv/video-streaming-definitions/what-is-hls-http-live-streaming.md): HLS (HTTP Live Streaming) is Apple's streaming protocol: video split into segments of roughly ten seconds, listed in a master manifest, delivered over plain HTTP so it passes firewalls and proxies, with AES encryption available.
- [What's an encoder, what's the difference with a transcoder?](https://ireplay.tv/video-streaming-definitions/what-is-an-encoder-difference-with-a-transcoder.md): An encoder compresses raw video into a coded format such as H.264 or H.265. A transcoder converts an already-encoded file into another format, resolution or bitrate. The difference is whether the input is raw or already compressed.
- [What is AV1?](https://ireplay.tv/video-streaming-definitions/what-is-av1.md): AV1 is the royalty-free open-source codec from the Alliance for Open Media (Google, Apple, Amazon, Netflix and others), offering better compression than HEVC without the licensing, with growing browser and hardware decode support.
- [What is Content Steering](https://ireplay.tv/video-streaming-definitions/what-is-cdn-content-steering.md): Content steering, also called content routing or traffic steering, directs each viewer request to the best CDN server at that moment based on location, server load and content type, and reroutes when the closest node degrades.
- [What are HLS tags?](https://ireplay.tv/video-streaming-definitions/what-are-hls-tags-http-live-streaming-tag.md): HLS tags are the directives inside an .m3u8 playlist: EXTM3U, EXT-X-VERSION, EXT-X-TARGETDURATION, EXT-X-MEDIA-SEQUENCE, EXT-X-STREAM-INF for variant details, EXT-X-ENDLIST and others, each carrying metadata the player needs.
- [What is a P-frame?](https://ireplay.tv/video-streaming-definitions/what-is-a-p-frame.md): A P-frame (predictive frame) encodes only the motion and residual difference from a preceding reference frame, so it costs far fewer bits than a keyframe and decodes more cheaply than a B-frame.
- [What is manifest manipulation?](https://ireplay.tv/video-streaming-definitions/what-is-manifest-manipulation.md): Manifest manipulation rewrites the HLS playlist or DASH MPD before it reaches the player, to change the rendition list, insert advertisements or other content, update a live stream, or add DRM signalling.
- [What is MV-HEVC used for Apple Vision Pro Stereoscopic experiences?](https://ireplay.tv/video-streaming-definitions/what-is-mv-hevc-multiview-high-efficiency-video-coding-for-stereoscopic-experiences-apple-vision-pro.md): MV-HEVC (Multiview HEVC) encodes left and right eye views in one stream using a 2D Plus Delta approach, which is how Apple Vision Pro spatial video works. Capture needs an iPhone 15 Pro on iOS 17.2, plus the REQ-VIDEO-LAYOUT HLS tag.
- [What is HEVC aka H.265?](https://ireplay.tv/video-streaming-definitions/what-is-hevc-h265-high-efficiency-video-coding.md): HEVC (H.265) succeeds H.264 with roughly the same quality at a lower bitrate, better 4K and 8K support and wide hardware decoding, at the cost of a licensing situation that pushed part of the industry toward AV1.
- [What is LCEVC?](https://ireplay.tv/video-streaming-definitions/what-is-lcevc-low-complexity-enhancement-video-coding.md): LCEVC (Low Complexity Enhancement Video Coding) is an MPEG standard that is not a codec on its own: it adds an enhancement layer on top of an existing base codec such as H.264, improving quality at low computational cost.
- [What is a vMVPD ?](https://ireplay.tv/video-streaming-definitions/what-is-vmpvd.md): A vMVPD (Virtual Multichannel Video Programming Distributor) delivers a bundle of live TV channels over the internet instead of cable or satellite: Hulu Live, YouTube TV and Sling TV, usually with cloud DVR and on-demand alongside.
- [What is transport?](https://ireplay.tv/video-streaming-definitions/what-is-transport.md): Transport is the protocol carrying media packets from server to player: HTTP over TCP for HLS and DASH, RTP and UDP where low latency matters more than error-free delivery, and WebSocket for full-duplex channels.
- [What is DOOH (Digital Out-of-Home)?](https://ireplay.tv/video-streaming-definitions/what-is-dooh-digital-out-of-home.md): DOOH (Digital Out-of-Home) is digital advertising shown on screens in public places such as malls, airports, stations and stadiums. A subset of digital signage, which also covers static and purely informational displays.
- [What is SRT?](https://ireplay.tv/video-streaming-definitions/what-is-srt-secure-reliable-transport.md): SRT (Secure Reliable Transport) is Haivision's open-source contribution protocol, public since 2017: AES encryption, packet loss recovery over the open internet, low latency, and firewall traversal on a single outbound port.
- [What is playout or play out?](https://ireplay.tv/video-streaming-definitions/what-is-play-out-playout.md): Playout is the process of scheduling and transmitting audio or video to air: sequencing pre-recorded files, adverts and live sources so the right content plays at the right time, in the right order, without interruption.
- [What are HLS Interstitials?](https://ireplay.tv/video-streaming-definitions/what-are-hls-interstitials-ads.md): HLS Interstitials, added by Apple in 2021, schedule pre-roll and mid-roll advertising as separate assets referenced by their own multivariant playlist, instead of stitching them in with discontinuity tags. Player support is still limited, mainly AVPlayer.
- [What is FAST?](https://ireplay.tv/video-streaming-definitions/what-is-fast-free-ad-supported-tv-channels.md): FAST (Free Ad Supported TV) channels are linear streaming channels viewers watch free while advertising pays for them, distributed through aggregator platforms, scheduled rather than on-demand, and increasingly using targeted ad insertion.
- [What is VVC?](https://ireplay.tv/video-streaming-definitions/what-is-vvc-versatile-video-coding.md): VVC (Versatile Video Coding, H.266) succeeds HEVC with higher compression and support up to 8K and HDR, at a decoding cost heavier than any previous standard, which is what has slowed its adoption.
- [What is a Video Processing Unit (VPU)?](https://ireplay.tv/video-streaming-definitions/what-is-a-vpu-video-processing-unit.md): A VPU (Video Processing Unit) is a microprocessor built for video work: encoding, decoding, transcoding, scaling, de-interlacing and colour correction, more power-efficient than a CPU. Found in SoCs and in products such as Intel Movidius.
- [What is PPV (Pay-per-view)](https://ireplay.tv/video-streaming-definitions/what-is-ppv-pay-per-view.md): PPV (Pay-Per-View) charges viewers a one-time fee for access to a specific video or live event for a limited period, the standard model for sports, concerts and other exclusive one-off content.
- [What is SCTE-35?](https://ireplay.tv/video-streaming-definitions/what-is-scte-35.md): SCTE-35 is the signalling standard that marks ad break and content boundaries in a video stream, embedded in-band or delivered out-of-band. It is what lets FAST channels run dynamic and targeted ad insertion the way broadcast TV runs local avails.
- [What is a CDN?](https://ireplay.tv/video-streaming-definitions/what-is-a-cdn-content-delivery-network.md): A CDN (Content Delivery Network) is a distributed set of servers that cache content near viewers, cutting latency and origin load through caching, load balancing, protocol optimisation and geographic distribution.
- [What is CTV (Connected TV)?](https://ireplay.tv/video-streaming-definitions/what-is-ctv-connected-tv.md): CTV (Connected TV) is any internet-connected television: smart TVs, Roku, Apple TV, Amazon Fire TV, games consoles and set-top boxes. The connection is what enables on-demand catalogues, targeted advertising and viewer measurement.
- [What is Media Over QUIC (moq) ?](https://ireplay.tv/video-streaming-definitions/what-is-moq-media-over-quic.md): Media over QUIC (MoQ) is an IETF effort to build one low-latency media transport for live streaming, gaming and conferencing, mapping audio, video and timed metadata onto QUIC streams and datagrams, either raw or through WebTransport, with cache-friendly naming.
- [What is a B-frame?](https://ireplay.tv/video-streaming-definitions/what-is-a-b-frame.md): A B-frame (bi-directional frame) predicts from both earlier and later reference frames, giving the best compression of any frame type at the cost of higher decoding complexity and a dependency on frames in both directions.
- [What is DASH?](https://ireplay.tv/video-streaming-definitions/what-is-dash-dynamic-adaptive-streaming-over-http.md): DASH (Dynamic Adaptive Streaming over HTTP) is the MPEG standard equivalent of HLS: segmented media described by an MPD manifest, delivered over plain HTTP, with the player switching bitrate as network conditions change.
- [What is a manifest?](https://ireplay.tv/video-streaming-definitions/what-is-a-manifest.md): A manifest is the index file a player reads to stream: segment URLs and durations, the list of bitrate renditions, and metadata including subtitles, audio languages and DRM. Called a playlist in HLS and an MPD in DASH.
- [What is TVOD (as in Prime Video TVOD)](https://ireplay.tv/video-streaming-definitions/what-is-tvod-prime-video-tvod.md): TVOD (Transactional Video-On-Demand) charges per title, renting or buying an individual film or episode, in contrast to SVOD's recurring library fee. Amazon Prime Video runs both models side by side.
- [What is Live Shopping?](https://ireplay.tv/video-streaming-definitions/what-is-live-shopping.md): Live shopping is retail through live video: a host demonstrates products and answers questions in real time while viewers buy from the same interface. Dominant in China and South Korea through Taobao and Gmarket, now built into Facebook, Instagram and YouTube.
- [What is MPEG V3C immersive video?](https://ireplay.tv/video-streaming-definitions/what-is-mpeg-v3c-immersive-video.md): MPEG V3C (Visual Volumetric Video-based Coding) is the codec family for volumetric video, where each frame is a 3D capture of a real scene. It underpins V-PCC and MPEG Immersive Video, and is what makes XR content deliverable at practical bitrates.
- [What is a chunk?](https://ireplay.tv/video-streaming-definitions/what-is-a-chunk-segment-fragment.md): A chunk (also segment or fragment) is a few seconds of media delivered as one file, packaged as MPEG-TS, fMP4 or WebM. Chunk duration sets the trade-off between latency and request overhead in ABR streaming.
- [What is a keyframe?](https://ireplay.tv/video-streaming-definitions/what-is-a-keyframe.md): A keyframe (I-frame) is a complete self-contained video frame that needs no other frame to decode. It costs the most bits of any frame type, anchors the P-frames and B-frames around it, and IDR keyframes additionally reset the decoder.
- [What is RTMP?](https://ireplay.tv/video-streaming-definitions/what-is-rtmp-real-time-messaging-protocol.md): RTMP (Real-Time Messaging Protocol) is Adobe's low-latency protocol, now used almost entirely as a live ingest format rather than for delivery. Covers the RTMPT, RTMPS, RTMPE and RTMFP variants, and why streams get repackaged to HLS or DASH.
- [What is Low Latency, and how it is implemented in HLS and DASH?](https://ireplay.tv/video-streaming-definitions/what-is-low-latency-ll-hls-ll-dash-webrtcv.md): Low latency in streaming and how each protocol gets there: LL-DASH with smaller segments, chunked transfer encoding and late binding; LL-HLS with partial segments, byte-range requests and HTTP/2 push; WebRTC with direct peer-to-peer connections.
- [What is mABR also known as multicast ABR ?](https://ireplay.tv/video-streaming-definitions/what-is-mABR-multicast-ABR.md): mABR (multicast ABR) combines multicast, which sends one copy of a stream to many recipients, with adaptive bitrate, so ISPs and telcos can deliver live TV to large subscriber bases at high quality without a unicast stream per viewer.
- [What is VOD2Live, what is Live+VOD2Live ?](https://ireplay.tv/video-streaming-definitions/what-is-vod2live-live-plus-vod2live-video-on-demand.md): VOD2Live turns files already prepared for OTT VOD into a live linear stream, which makes niche channels affordable without a broadcast playout chain. Live+VOD2Live mixes live segments in, and continuous 24/7 output needs an automatic weighted random playlist.
- [What is addressable TV?](https://ireplay.tv/video-streaming-definitions/what-is-addressable-tv.md): Addressable TV delivers different advertisements to different households during the same programme, using set-top box, smart TV and streaming platform data for audience segmentation and dynamic ad insertion into the broadcast stream.
- [What is a multivariant playlist?](https://ireplay.tv/video-streaming-definitions/what-is-a-multivariant-playlist-variant-playlist-master-playlist.md): A multivariant playlist (also master or variant playlist) is the HLS file listing every bitrate rendition of a stream with its bandwidth, resolution and codecs, so the player can pick a starting rendition and switch between them.
- [What is H.264?](https://ireplay.tv/video-streaming-definitions/what-is-h264.md): H.264, also called AVC, is the ITU-T and ISO video compression standard behind most streaming today: broad device support, the basis of most ABR ladders, and used from web video to Blu-ray, broadcast and surveillance.

## Elsewhere on iReplay.tv

- [Site overview for LLMs](https://ireplay.tv/llms.txt): talent directory and streaming tools.
- [Blog home](https://ireplay.tv/blog/): the human-readable listing, with search and pagination.
- [RSS feed](https://ireplay.tv/blog/?feed=en): the 30 most recent EN articles.