To loop a prerecorded video on YouTube Live, run FFmpeg with -re -stream_loop -1 before the input file, encode it for YouTube’s live ingest, and send it to the stream URL and key from YouTube Live Control Room. The loop option repeats the file indefinitely; -re reads it at real-time pace.
What you need before starting
- An FFmpeg build with the
libx264encoder available. - A video file you have the right to stream, with a valid path on the machine running FFmpeg.
- A YouTube channel eligible to livestream. YouTube says the channel must be verified and have no live-streaming restrictions in the previous 90 days; its minimum age to livestream is 16. See YouTube’s live-streaming eligibility requirements.
- A stream URL and key for the event in YouTube Live Control Room. Treat the key like a password: anyone with it may be able to send a feed to that stream. See YouTube’s encoder setup instructions.
- Reliable upload capacity for the selected video bitrate, plus headroom for network variation.
Set up the YouTube live stream
- Open YouTube Studio and create or select a stream in Live Control Room.
- Copy the stream URL and stream key shown for that stream. Do not post or share the key.
- For a first run, use a private or unlisted stream if available, so you can check the feed before making it public.
YouTube’s workflow separates sending the encoder feed from actually starting a scheduled broadcast: wait for the preview and check the stream health, then use Live Control Room’s Go live control when you are ready. A running FFmpeg process alone does not guarantee the broadcast is public.
Run FFmpeg with an infinite input loop
Replace the file path and destination with your own values. This example targets H.264/AAC at 1080p30-compatible settings:
ffmpeg -re -stream_loop -1 -i "/path/to/video.mp4"
-c:v libx264 -preset veryfast -b:v 14M -minrate 14M -maxrate 14M -bufsize 28M -g 60
-c:a aac -b:a 128k -ar 44100
-f flv "rtmp://YOUR_INGEST_URL/YOUR_STREAM_KEY"Use the actual ingest destination and key provided by Live Control Room; the placeholder address above is not a usable URL. YouTube recommends RTMPS for encrypted transport where the provided ingest option supports it. Keep the URL and key out of public scripts, screenshots, and logs.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
What the important options do
-rereads the input at its native pace rather than processing the file as fast as possible. This is useful when sending a file as a live stream.-stream_loop -1is an input option that tells FFmpeg to repeat the input indefinitely. The-1value means infinite looping.-iintroduces the input file. FFmpeg input options belong before the input they affect, so keep-reand-stream_loop -1before-i.-c:v libx264encodes video as H.264;-c:a aacencodes audio as AAC.-f flvselects the container used for RTMP-style ingest.-b:v 14Msets the video bitrate. Matching-minrateand-maxratewith-b:vmakes this a CBR-style configuration;-bufsize 28Msets the rate-control buffer.-g 60sets a 60-frame GOP. At 30 fps, that is a keyframe every two seconds.
See the FFmpeg documentation for option behavior and ordering. This command is a starting template, not a tested fit for every file, FFmpeg build, or machine.
Choose bitrate and keyframe settings for your output
YouTube recommends a two-second keyframe interval and says not to exceed four seconds. Its current encoder-settings guidance lists 14 Mbps as the recommended H.264 video bitrate and 5 Mbps as the minimum for 1080p30, with CBR recommended. These are platform recommendations for that resolution and frame rate, not guarantees of stream quality on a particular connection. Consult YouTube’s encoder settings, bitrates, and resolutions for other output formats.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
The example’s -g 60 assumes a 30 fps output. If your output frame rate differs, choose a GOP size that keeps keyframes about two seconds apart—for example, twice the frame rate in frames. If the source has an unusual frame rate, audio format, or aspect ratio, the example may need adjustment; confirm the resulting output in Live Control Room rather than assuming the source properties match the encoder settings.
YouTube recommends leaving approximately 20% upload-bandwidth room beyond the total streaming bitrate. If the connection cannot sustain the selected bitrate with that margin, lower the output resolution and bitrate using YouTube’s guidance rather than running at the edge of available upload capacity. Test and monitor the feed as described in YouTube’s streaming tips.
Free tools Windows power users keep installed
One-click scans. No signup required.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Test, go live, and stop the stream
- Start the command and watch FFmpeg’s output for encoding or connection errors.
- Wait for the stream preview in Live Control Room. Check that video motion, framing, and audio are right and that stream health is acceptable.
- For a scheduled broadcast, select Go live in Live Control Room once the preview is ready. Keep monitoring the encoder and stream health.
- To finish, stop the FFmpeg process and end the broadcast in Live Control Room as appropriate for the event’s stream settings. Follow YouTube’s encoder workflow.
Copyright and monetization considerations
Only stream videos and audio you have permission to use. Repeating a file does not grant rights to its contents or remove YouTube’s copyright and platform rules. A technically successful stream also does not establish eligibility for monetization; review YouTube’s current policies and the rights attached to the material before broadcasting.
Troubleshooting FFmpeg-to-YouTube loops
- FFmpeg connects, but YouTube shows no preview: Check that the stream URL and key belong to the selected event, that the key was copied completely, and that the channel can livestream. Allow time for the preview to appear.
- Connection fails immediately: Recheck the ingest address and key, verify that the machine has internet access, and confirm that the destination uses the protocol and address YouTube supplied. Keep the key private while troubleshooting.
- The stream buffers or health warnings appear: The upload connection may not sustain the configured total bitrate. Reduce resolution or bitrate and preserve YouTube’s recommended upload headroom.
- The picture or audio is missing, distorted, or out of sync: Test the file locally and check its stream properties. The sample’s H.264/AAC settings may need adjustment for the source, FFmpeg build, or desired output.
- The video plays once instead of repeating: Make sure
-stream_loop -1appears before-ifor the input file being looped. - The stream ends when the computer or process stops: This FFmpeg method depends on the machine, process, and internet connection running continuously. For a 24/7 stream, plan for power, network, and process interruptions.
Or let it run in the cloud
If you want a YouTube channel to keep playing uploaded videos without leaving a computer on at home, StreamNeo runs the loop from the cloud. Upload a recording or build a playlist, add your YouTube stream key, and go live. It is for uploaded videos on YouTube, not live camera input.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
- Nothing has to stay on at home; the stream runs from the cloud.
- Each slot streams the video as uploaded, up to 4K 60fps, at one flat price per slot rather than quality tiers.
- StreamNeo automatically recovers if YouTube drops the stream.
- The first day is free with no card required (one free day per account).
The monthly option is $9.99 per month. The first day is free with no card; see StreamNeo pricing for available billing lengths. Start your free StreamNeo day.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
