For an always-on YouTube stream, use OBS Media Source with Loop for one video, or VLC Video with Loop Playlist for several files. OBS Replay Buffer is different: it saves recent local footage when you trigger it, but it does not loop the broadcast or create a playlist.
YouTube viewer repeat is a playback control for the person watching, not a setting for the outgoing live feed. You also need to treat YouTube DVR carefully, because YouTube says rewind may be limited or unavailable when a live stream runs for longer than 12 hours.
What “replay” means here
The word replay causes trouble because it can describe three separate things.
In OBS, Replay Buffer is a local recording feature. It keeps recent footage available in a rolling buffer, so you can save what just happened after an event has taken place. It is useful for capturing a chant, announcement, mistake, or short segment without recording the entire session. The saved clip is written to the computer running OBS.
For a continuous broadcast, looping is a media playback function. A Media Source can repeat one local video, while a VLC Video source can play several local files in sequence and repeat the list. These controls determine what OBS sends into the live scene.
On YouTube, DVR is a viewer-side function. It can let someone pause or rewind the live broadcast, subject to YouTube’s limits. It does not make OBS replay a file, and it does not tell your source to begin again.
A useful way to remember the distinction is this:
| What you want to do | Correct control | Where it acts |
|---|---|---|
| Save recent footage after something happens | OBS Replay Buffer | Your computer |
| Repeat one local video | Media Source with Loop | OBS’s outgoing scene |
| Repeat several local videos | VLC Video with Loop Playlist | OBS’s outgoing scene |
| Let a viewer pause or rewind live video | YouTube DVR | The viewer’s playback session |
| Let a viewer repeat a YouTube video or playlist | YouTube playback repeat | The viewer’s device |
If your goal is a 24/7 devotional, ambience, study, news, or shop stream, Replay Buffer is normally not the setting you need for continuity. Start by deciding whether your source is one file or a list of files, then configure the matching source.
Use Replay Buffer to save recent local footage
Replay Buffer is worth understanding even when it is not part of the looping setup. It can be useful if you operate a live channel and want to retain a short local clip without keeping a full recording of the broadcast.
OBS’s overview documentation places Replay Buffer with recording functions. You enable it in the output settings, then assign a hotkey under Hotkeys to save the buffer. The overview also lists hotkeys for starting, stopping, and saving the Replay Buffer. Enabling the feature and setting a save hotkey are separate steps, so check both before relying on it.
The normal workflow is:
- Open OBS settings and find the recording or output area.
- Enable Replay Buffer.
- Open Hotkeys and assign a key to Save Replay Buffer.
- Start the buffer before you need it, or configure the relevant start action in the way supported by your OBS version.
- Press the save hotkey when you want to keep the recent footage.
Do not treat the buffer as a playlist. It does not arrange media files, select the next video, or restart a live source after playback ends. It is a rolling capture of recent OBS output that you choose to save locally.
There is no universal buffer duration that suits every channel. A longer buffer means more recent footage is available, but it also increases the amount of local storage and system resource planning you may need. A short clip from a live music or devotional channel has a different purpose from a long segment saved from a local news loop.
Check where OBS writes recordings, whether the drive has room, and whether your computer can handle the recording workload alongside streaming. If your source video is unnecessarily large, the advice in this guide to compress video without visible quality loss can help you prepare a more manageable file, though compression does not replace testing the complete OBS scene.
A Replay Buffer save is also not a substitute for YouTube’s live archive. The local file and the YouTube broadcast are separate outputs. If you need a record of the complete programme, configure a proper recording workflow and confirm that it is actually writing files before leaving the channel unattended.
Loop one video with Media Source
Use a Media Source when the channel is built around one local video file. This is the simplest OBS route for a single lake ambience video, a long bhajan programme, a shop presentation, or another file intended to repeat from its beginning.
In OBS, add a Media Source to the scene and select the file. In the source properties, enable Loop. OBS documents Loop as the control that plays the file again after playback completes. Save the source properties, then watch at least one full end-to-start transition before treating the setup as ready.
The key settings are conceptually simple:
| Requirement | OBS choice |
|---|---|
| One file should repeat | Media Source |
| The file should start again after ending | Loop enabled |
| The file should play once | Loop disabled |
| Several files should play in order | VLC Video |
Do not add a second copy of the same video to a playlist merely to make it repeat. That can obscure whether the source is looping correctly and makes later changes harder to audit. One file plus the source’s Loop setting is clearer.
Check the source’s visibility behaviour as well. A source may stop or restart when it is hidden, depending on its configured behaviour and the OBS version. If you use scene switching, a source that is stopped while hidden may begin again when it becomes visible rather than continuing from its previous position. For an always-on scene, keep the playback source visible in the active scene unless you have deliberately tested another arrangement.
The file itself also needs to be suitable for a live scene. Confirm its resolution, frame rate, audio track, and aspect ratio. A video that looks fine in a media player can still produce a black frame, silence, or an unexpected layout in OBS. Use a short test broadcast or monitor the preview through a complete transition before publishing the live event.
A single-file loop can be a sensible choice when the visual and audio material is designed to be continuous. It is less suitable when viewers need meaningful changes throughout the day, or when you need to rotate different announcements without editing the original file. In those cases, use a file list instead.
For a broader example of planning a channel around one repeating file, see how to build a 24/7 channel from a single 20-minute video. The same principle applies to a longer source, but the transition still needs to be tested in your own scene.
Loop a file list with VLC Video
Use VLC Video when the stream should play multiple local files. This is the appropriate OBS source for a playlist of devotional tracks, several ambience scenes, a set of product videos, or a collection of lessons.
OBS’s media sources documentation identifies VLC Video as the source for a list of media files. Add the source, choose the files, and enable Loop Playlist so the list starts again when the final item finishes. The documentation also treats Shuffle Playlist as a separate control. With shuffle off, the files remain in their listed order. With shuffle on, OBS can vary the order rather than following the list from top to bottom.
The choice between order and shuffle is editorial as much as technical. A shop may need an opening message before its product demonstrations, so fixed order is easier to control. An ambience channel may prefer variation, but should still check whether random ordering creates an abrupt change in sound or brightness. A devotional sequence may also need a deliberate order if the files are arranged as a programme rather than as unrelated tracks.
VLC must be installed for the VLC Video source. OBS’s documentation notes that a 64-bit OBS installation requires 64-bit VLC. Install the matching version, restart OBS if necessary, and confirm that the source appears and plays before you build the rest of the scene around it.
A practical setup sequence is:
- Install the VLC version that matches your OBS architecture.
- Create one folder containing the files for this broadcast list.
- Add a VLC Video source to the active scene.
- Add the intended files and verify their order.
- Turn on Loop Playlist.
- Decide whether Shuffle Playlist should remain off or be enabled.
- Check the source’s visibility settings.
- Observe the end of the list and its return to the first item.
The visibility setting deserves attention because it can undo an otherwise correct playlist. OBS documents a VLC Video behaviour in which the source stops when it is not visible and restarts when it becomes visible. That is a useful default for some scenes, but it can surprise you if the playlist is hidden briefly during a scene change. For a continuous channel, test what happens when the source is hidden, shown again, or placed in a scene that is not currently live.
Keep filenames readable and maintain a simple list outside OBS. A spreadsheet or text file can record the intended order, the approximate duration, and any content that should not be adjacent. This is not an OBS requirement, but it makes troubleshooting much quicker when a file is missing or a sequence sounds wrong.
For a retail use case, the guide to looping shop promotion videos on YouTube Live may help you think through programme order and content changes. The actual playlist control remains the VLC Video source in OBS.
Check the stream before leaving it unattended
A source that loops in the OBS preview is not automatically a reliable overnight broadcast. Test the complete path: source playback, audio, scene visibility, YouTube connection, and the behaviour at the end of a file or list.
First, run the source long enough to cross the transition you care about. For a single file, watch the return to the beginning. For a playlist, watch the final file end and the first file begin again. Listen for a gap, a sudden volume change, or a source that becomes invisible.
Next, check the outgoing stream rather than relying only on the OBS preview. YouTube’s live view can reveal a muted audio track, a frozen frame, or a delay that is not obvious in the local preview. The bitrate and latency checklist for YouTube Live is useful here because looping media and a stable upload are separate parts of the same operation.
OBS also documents launch parameters including --startreplaybuffer and --startstreaming. These can help when you have a planned way to launch OBS with particular actions. For scheduled or automated launches, OBS says the working directory, called “Start in” on Windows, should point to the folder containing the OBS executable.
Those parameters are startup instructions, not a promise of uninterrupted operation. They do not by themselves guarantee that OBS will restart after every failure, restore a YouTube event, or recover from a broken network connection. If you automate startup, test the exact shortcut or task and confirm what happens after a normal restart.
A local computer also leaves you responsible for power, updates, connectivity, storage, and the application staying open. If those responsibilities are the reason the channel keeps stopping overnight, StreamNeo removes the need to keep your own computer running by taking an uploaded video, your YouTube stream key, and operating the broadcast from the cloud with monitoring and automatic restart when the stream drops.
That changes the operating model, but not the content decisions. You still need to choose the file or playlist, verify that you have the necessary rights, and check YouTube’s current requirements. If your source includes music, footage, or news material from elsewhere, the article on why YouTube stops a live stream after a copyright warning explains why a technically correct loop can still be interrupted.
Keep viewer repeat separate from the broadcast
YouTube’s repeat control is for the person watching. YouTube documents how viewers can loop videos and playlists on supported devices. That setting changes what happens in an individual viewer’s player after an item ends; it does not change the media source being sent from OBS.
Suppose you publish a live channel that cycles through five local videos. A viewer cannot make OBS select the second file, change the playlist order, or restart the live source by turning on a YouTube repeat control. The outgoing sequence is still governed by OBS’s VLC Video source and its playlist settings.
The reverse is also true. If your OBS source loops correctly, a viewer’s YouTube player does not necessarily behave like a recorded video. They are watching a live broadcast, with live delay and any available DVR controls, rather than a normal uploaded video with an ordinary end point.
This distinction prevents a common troubleshooting mistake. If every viewer reports that the programme does not repeat, inspect the OBS source and the live output. If one viewer cannot rewind or repeat in the way they expect, inspect the viewer’s device, YouTube playback controls, and the limits of the live broadcast instead.
You can point viewers to YouTube’s own instructions for looping videos and playlists when the question concerns their player. Do not present those instructions as a way to configure an always-on OBS channel.
Account for YouTube DVR limits on long streams
YouTube DVR lets viewers pause and rewind during a live stream when the feature is available. This can be useful for a viewer who joins a devotional programme late or wants to revisit something that just played.
It is not the same as a complete replay archive. YouTube’s official guidance warns that DVR may be limited or unavailable when a live stream becomes longer than 12 hours. For an always-on channel, that caveat matters because the broadcast may cross the threshold while the channel is still operating normally.
Do not promise viewers that they can rewind to the beginning of an all-day or overnight stream. Instead, describe the channel as live and explain that rewind availability can vary on long broadcasts. If a past programme must remain available, consider publishing an appropriate recording separately after checking your rights and YouTube’s current rules.
YouTube also describes DVR as a viewer playback feature, not as a source-control mechanism. Turning DVR on or off cannot make a Media Source loop, cannot repair a VLC playlist, and cannot restart an OBS connection. Those tasks belong to the relevant system: OBS for local source playback, YouTube for live viewer controls, and your operating arrangement for keeping the broadcast running.
Read YouTube’s current DVR guidance for live streams before you make viewer-facing promises. Platform controls and documentation can change, so confirm the current position rather than relying on an old screenshot or an assumption that every long stream has the same rewind behaviour.
A simple decision for your channel
Use this decision path when configuring the stream:
- If you need to save the last part of a live session locally, enable Replay Buffer and set a save hotkey.
- If one video should repeat, add a Media Source and enable Loop.
- If several videos should repeat, add a VLC Video source, add the files, and enable Loop Playlist.
- If order matters, leave Shuffle Playlist off and verify the file order.
- If variety matters more than order, test Shuffle Playlist with the actual files and audio transitions.
- If viewers ask about rewinding, explain YouTube DVR separately and mention the long-stream limitation.
Before you start, write down which of these outcomes you want. “Replay the channel”, “save the last few minutes”, and “let viewers rewind” sound similar in casual conversation but require different settings. Naming the outcome first prevents you from enabling a recording feature when you meant to configure a loop.
Finally, keep the setup easy to inspect. Use one clearly named Media Source for one file, or one clearly named VLC Video source for the playlist. Keep the files in a known location, test visibility behaviour, watch a complete transition, and confirm the live output with sound before leaving the channel unattended.
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FAQ
Does OBS Replay Buffer loop my video?
No. Replay Buffer keeps recent OBS footage available for you to save locally. To repeat one video, use a Media Source with Loop; to repeat a list, use VLC Video with Loop Playlist.
Should I use Media Source or VLC Video?
Use Media Source when you want one file to play again after it ends. Use VLC Video when you need a list of files, with separate controls for looping the list and shuffling its order.
Can viewers use YouTube repeat to control my OBS playlist?
No. YouTube repeat controls affect an individual viewer’s playback experience. They do not change the files, order, or loop setting that OBS sends to the live broadcast.
Will viewers always be able to rewind an overnight stream?
No promise is appropriate. YouTube says DVR may be limited or unavailable for streams longer than 12 hours, so check the current official guidance and avoid advertising a full rewind window for a long-running broadcast.