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To loop one prerecorded video in a YouTube live stream, add it to an OBS Media Source and enable Loop in that source’s properties. Keep the source visible in the active scene, check the OBS preview, and test the stream in YouTube Live Control Room before broadcasting publicly. Looping makes OBS restart the file when it ends; it does not guarantee a gap-free picture on every system.
Loop one video in OBS
- Select the scene. In OBS, choose or create the scene you intend to send to YouTube.
- Add the video. In the Sources dock, select +, choose Media Source, and select the local video file. OBS lists common supported formats including .mp4, .ts, .mov, .flv, .mkv, .avi, .gif and .webm. See the OBS Media Sources documentation.
- Enable the loop. Open the Media Source properties and check Loop. OBS documents this option as off by default; when enabled, it replays the file after playback completes. Restart playback when source becomes active is a separate option: it controls whether playback restarts when the source becomes visible in the active scene.
- Make the source visible. In the Sources list, confirm the eye icon is on. OBS layers sources in list order: a source above the video can cover it. Fit and position the video in the canvas, then inspect the preview. See OBS’s Sources guide.
- Test the end-to-start transition. Let the file play to its end in OBS and watch it restart. Check that the picture and audio behave as intended before using the loop in a public broadcast.
- Connect OBS to YouTube. In YouTube Studio’s Live Control Room, use the stream URL and stream key with your encoder. Keep the key private; if it is exposed, reset it in Live Control Room. YouTube’s encoder setup instructions explain how to connect an encoder.
YouTube’s Repeat/Loop player control is different: it repeats playback for an individual viewer. It does not tell OBS or another encoder to loop the video being broadcast live.
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Loop a playlist instead of one file
If you need several videos to play in sequence, OBS’s VLC Video source can play a playlist and has a separate Loop Playlist option. This requires VLC to be installed; OBS says 64-bit OBS requires 64-bit VLC. For a single file, the regular Media Source’s Loop option is the direct method. The playlist option repeats the playlist rather than just one selected file. Details are in the OBS Media Sources documentation.
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Check the stream before going public
- Run a test with representative content. YouTube recommends testing with audio and video movement similar to the planned stream.
- Check YouTube’s incoming preview. In Live Control Room, verify that YouTube receives the picture before you click Start Streaming.
- Use appropriate encoder settings. YouTube’s general encoder guidance lists H.264, H.265/HEVC and AV1 for RTMP/RTMPS, recommends CBR, and recommends a two-second keyframe frequency without exceeding four seconds. Choose the bitrate for your codec, resolution and frame rate from YouTube’s current encoder settings; there is no one bitrate that fits every setup.
- Monitor the live event. Watch stream health and messages in Live Control Room, as YouTube recommends in its live streaming tips.
Find where the black screen starts
Compare the image at three stages: OBS’s output scene, YouTube Live Control Room’s incoming preview, and the viewer’s watch page. The first stage where the picture disappears narrows down what to inspect; it does not by itself prove a specific cause.
#1 Best Overall
Guermok Video Capture Card, 4K USB3.0 HDMI to USB C, 1080P 60FPS & 2K 30FPS
- 【1080P 60FPS Video Capture Card】 This HDMI game capture card is based on USB3.0 high speed transmission port, input resolution up to 4K@30HZ, output resolution up to 2K@30Hz or 1920×1080@60Hz. Type c and USB interface can meet most of the devices in daily life. Easily meet the online capture, real-time recording, online meetings, live gaming and other functions, so you have a better visual enjoyment. Note: For capture use only; requires capture software to function and is not intended for direct screen casting to a monitor or TV
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- 【Wide Compatibility USB Capture Card】 Easily streams to Facebook, Youtube or Twitch. With the connection, this HDMI to USB C/3.0 video capture devices can be working on several Operating Systems and various software: Windows 7/ 8/ 10, Mac OS or above, Linux, Android, Laptop, Xbox One, PS3/PS4/PS5, Camera, DVDs, Set Top Box, Webcame, DSLR, Switch/Switch 2, TV BOX, HDTV, Potplayer/VLC, ZOOM, OBS Studio etc.
- 【Package Content & Note】 1x HD Audio Capture Card , 1x USB 3.0 to USB C Adapter (A-side 3.0, B-side 2.0), 1x user manual. Please note that you need to restart the OBS Studio software after the audio setup is complete, otherwise it will result in no sound output. When using an adapter, if the device is recognized as USB 2.0, try using the other side with the USB-C port. Simply flip the capture card and reconnect it to be recognized as USB 3.0
OBS preview is black
- Confirm the Media Source points to the intended local file and that the file plays.
- Check that the source is in the scene being sent to YouTube and that its eye icon is enabled.
- Look for an opaque source higher in the Sources list that could cover the video.
- Check the source’s position and fit in the canvas.
OBS preview works, but YouTube’s incoming preview is black
- Confirm that OBS is outputting the scene you inspected, rather than a different scene.
- Check the stream URL and key currently configured in OBS against the encoder setup in Live Control Room.
- Read Live Control Room’s messages and stream health. These checks help isolate the issue but do not guarantee a particular diagnosis.
YouTube’s incoming preview works, but viewers see black
Check the actual watch page on another device or network and confirm the stream is still live. The official guidance cited here does not establish one universal fix for this situation; the cause may depend on the viewer’s device or playback setup.
A black gap appears only when the video repeats
Observe the end-to-start transition in OBS before broadcasting. OBS documents that Loop restarts playback after the file completes, but does not promise a frame-perfect transition for every file and computer. If the gap persists, investigate the file and local playback behavior rather than assuming the Loop setting guarantees seamless output.
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Capture Card, 4K HDMI Video Capture Card, Game Capture Card, 1080P 60FPS Video Capture Device, HDMI to USB 3.0 Capture Card for Streaming, Work with Camera/Xbox/PS4/PS5/PC/OBS
- 【1080P HD High Quality】Capture resolution up to 1080p for video source and it is ideal for all HDMI devices such as PS4, PS3, Xbox One, Xbox 360, Wii U, DVDs, DSLR, Camera, Security Camera and set top box. Note: Video input supports 4K30/60Hz and 1080p120/144Hz. Does not support 4K120Hz/144Hz. Output supports up to 2K30Hz.
- 【Plug and Play】No driver or external power supply required, true PnP. Once plugged in, the device is identified automatically as a webcam. Detect input and adjust output automatically. Won't occupy CPU, optional audio capture. No freeze with correct setting.
- 【Compatible with Multiple Systems】suitable for Windows and Mac OS. High speed USB 3.0 technology and superior low latency technology makes it easier for you to transmit live streaming to Twitch, Youtube, Facebook, Twitter, OBS, Potplayer and VLC.
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Consider hardware decoding only when relevant
OBS documents a hardware-decoding option for certain media types when the GPU has a suitable decoder. Trying that option may be relevant to a specific playback issue, but the documentation does not describe it as a general black-screen fix.
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Copyright and stream-key checks
- Use video and audio you have the right to stream. A loop setting does not grant permission to rebroadcast copyrighted material.
- Keep the YouTube stream key private because it lets an encoder connect to your stream. Reset it in Live Control Room if it is compromised.
- Check the current YouTube Live Control Room messages and channel requirements for your account. The encoder setup guidance covers connecting an encoder; it does not establish eligibility for every channel or guarantee that a particular video may be broadcast.
Or let it run in the cloud
If you want a YouTube channel to keep playing uploaded videos without leaving OBS or a computer running at home, StreamNeo runs the loop in the cloud. Upload your recording or build a playlist, add your YouTube stream key once, and go live. It plays uploaded videos, not a live camera feed.
Quick Recap
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Capture Card 4K HDMI Video Streaming to USB 3.0 1080P 60FPS Capture Device
- High-Quality Video Capture, 4K HDMI Capture Card Ready: Capture smooth and vibrant video with this 4K HDMI capture card, engineered for gamers and content creators who demand crisp 1080P 60FPS video quality. Whether you're streaming to Twitch or recording gameplay for YouTube, your footage will look professional and detailed
- Plug-and-Play USB Capture Card, No Drivers Needed: Designed as a USB capture card for streaming, this device works instantly out of the box, just plug into your PC or laptop and start capturing. Fully compatible with popular software like OBS Studio, Streamlabs, and XSplit, making setup quick and stress-free for beginners and pros alike
- Universal Compatibility PS5, Xbox, Switch & More: Stream or record gameplay from virtually any HDMI-enabled device including Nintendo Switch, PS5, Xbox Series X, DSLR cameras, and PCs. The video capture card for gaming supports seamless passthrough so you can play without lag while your audience watches every frame in real time
- Low-Latency Performance for Smooth Streaming: This capture card for streaming minimizes delay between gameplay and broadcast, so you get reliable, low-latency capture that works well for competitive gaming, live broadcasts, and podcast sessions. Suitable for those building their channel with high-quality, engaging content
- Compact & Portable Design for Content Creators: Lightweight and portable, this USB 3.0 capture card works well for creators who travel or switch gaming setups often. Throw it in your bag and stream or record wherever you are, at home, events, LAN parties, streaming or studio sessions
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Video Capture Card, 4K USB3.0 HDMI to USB C, 1080P60FPS HDMI Capture Card for Streaming, Gaming, Video Recording Compatible with Switch, Xbox, PS4/5, OBS,iPad Mac OS Windows,Camera, Zoom(Silver)
- 【4K HDMI Input, 2K@30Hz Recording】Powered by a true USB 3.0 high-speed interface, the capture card supports up to 4K@30Hz HDMI input and records at 2K@30Hz or 1080P@60Hz. Perfect for gamers, streamers, and professionals who need crisp, smooth video for live streaming, gameplay recording, or online meetings.
- 【Ultra Low Latency Screen Sharing】Built with a premium aluminum alloy shell and advanced chipset for stable heat dissipation, ensuring ultra-low latency transmission. Capture high-quality video and dual-channel audio in real time—no lag, no frame drop—ideal for Twitch, YouTube, or OBS streaming.
- 【Easy Plug and Play, Compact & Portable】No driver or external power required—just plug and play via USB 3.0 or Type-C connection to your Windows or macOS computer. Lightweight and compact design makes it easy to carry for outdoor streaming, live shows, or mobile recording setups.
- 【Wide Compatibility & Multi-Device Support】Compatible with Windows 7 8 10 11, macOS, Linux,Android and supports most popular software such as OBS, Zoom, VLC, Twitch Studio, and more. Works seamlessly with PS4, PS5, Xbox, Switch, DSLR cameras, TV boxes, and other HDMI-output devices for streaming to YouTube, Twitch, etc.
- 【What You Get】Includes: HDMI Capture Card, USB 3.0 to USB-C Adapter, User Manual. Tips: Make sure your tablet’s OTG function is enabled before connecting. Test your HDMI device with a monitor first to confirm video and audio output, then connect to the Video Capture Card for recording.
- Nothing has to stay on at home; StreamNeo keeps the stream running from the cloud.
- Your uploaded video streams as made, up to 4K 60fps, at one flat price per slot with no re-encode or quality tiers.
- Automatic recovery if YouTube drops the stream.
- The first day is free, with no card required; one free day per account.
- Monthly: $9.99 per month.
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