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To loop a pre-recorded video on YouTube Live, run FFmpeg on a Linode Compute Instance, pass -stream_loop -1 before the video’s -i input, and send the output to the ingest URL and stream key from YouTube Live Control Room. Preview the broadcast before starting it, and keep the instance running while you want the stream live.
What you need before you start
- A verified YouTube channel with live streaming enabled. YouTube says the channel must have had no live-streaming restrictions in the previous 90 days, and the minimum age to livestream is 16. Check current eligibility in YouTube’s live-streaming requirements.
- A Linode (Akamai) Compute Instance running Linux. The Linode guide describes creating an account and instance for a streaming server, but does not establish an instance size, price, or encoding benchmark for this specific workload: Linode’s streaming-server guide.
- FFmpeg installed with the codecs and protocol support required for your selected output.
- A prerecorded video file accessible on the instance, plus its exact path.
- The ingest server URL and stream key for your YouTube encoder stream. Treat the key like a password.
This method is for streaming uploaded video files, not broadcasting a live camera feed. A cloud server can remain online independently of your home computer, but you are responsible for instance administration, file storage, network capacity, and the running FFmpeg process.
Set up YouTube Live and get the ingest details
- Open YouTube Studio and go to Create > Go live to open Live Control Room. Select or create an encoder stream and configure its title, visibility, and other event details. YouTube’s encoder setup instructions explain how to connect an encoder.
- Copy the server URL and stream key shown for that stream. Use the RTMPS ingest URL if available and supported by your FFmpeg build. YouTube describes RTMPS as RTMP protected by TLS/SSL; see YouTube’s RTMPS guidance.
- Keep the key private. Do not place it in a public script, screenshot, repository, or chat. If it is exposed, replace or reset it in YouTube Studio before broadcasting.
Prepare the Linode instance and video
- Create a Linux Compute Instance using Linode’s current setup guidance. Apply the distribution’s current security updates and use secure access practices. The appropriate instance size depends on the codec, resolution, frame rate, and whether FFmpeg must encode or can pass through the video; the cited Linode guide does not benchmark this exact workload.
- Install FFmpeg with the package instructions for your Linux distribution. Confirm the installed build supports the needed encoder (for example,
libx264) and RTMP/RTMPS output. - Copy the video to the server and note its full path. Inspect it with
ffprobe /path/to/video.mp4or another media inspector; verify the video and audio streams, resolution, frame rate, and audio presence before building the output settings. - Ensure the file will remain available for the entire broadcast and that the instance has sufficient storage. If the file has no audio, remove the audio options from the command rather than expecting FFmpeg to create a soundtrack.
Choose compatible output settings
YouTube’s encoder guidance supports RTMP/RTMPS ingest, H.264, H.265/HEVC, and AV1 video, frame rates up to 60 fps, AAC or MP3 audio, and constant bitrate (CBR). For a broadly compatible FFmpeg example, the command below encodes H.264 video and AAC audio. Match resolution and bitrate to the source and the host’s measured outbound capacity; do not assume a Linode size can encode a particular format without testing.
- Bitrate: Set
VIDEO_BITRATEto an appropriate value for the resolution, frame rate, and content, following YouTube’s encoder settings. Use the same target for-b:vand-maxratein this CBR-style example, and set-bufsizeto a compatible rate-control buffer value. - Keyframes: YouTube recommends a two-second keyframe interval and says not to exceed four seconds. Set
-gto approximately two times the frame rate for a two-second GOP—for example, 60 at 30 fps or 120 at 60 fps. Confirm actual frame rate and output behavior rather than assuming the source is constant-frame-rate. - Pixel format:
yuv420pis commonly used for compatibility with H.264 playback pipelines. - Network headroom: YouTube recommends upload capacity with 20% margin above the total stream bitrate. Include audio and any other traffic when assessing the instance’s available outbound capacity; consult YouTube’s bitrate guidance.
Run FFmpeg in an infinite loop
Use -stream_loop -1 as an input option before -i. The value -1 means repeat indefinitely. FFmpeg documents the input-loop option in its command-line documentation.
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ffmpeg -re -stream_loop -1 -i /path/to/video.mp4
-c:v libx264 -preset veryfast -b:v VIDEO_BITRATE
-maxrate VIDEO_BITRATE -bufsize VIDEO_BUFFER
-pix_fmt yuv420p -g KEYFRAME_INTERVAL
-c:a aac -b:a 128k -f flv 'RTMPS_INGEST_URL/STREAM_KEY'This is a configuration template, not a tested command. Replace every uppercase placeholder with a value appropriate to your source and YouTube stream, and use the exact ingest URL and key displayed in Live Control Room. Keep the URL quoted so shell characters in the key are not interpreted. If YouTube provides a complete server URL and key separately, combine them in the format shown by YouTube rather than copying a sample credential.
-re reads the file at its natural playback rate; without it, FFmpeg may send file data faster than real time. The loop option must precede the input it applies to. If you have multiple inputs, position the option before the corresponding -i. For further option details, consult the FFmpeg documentation.
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Preview, start, and monitor the broadcast
- Start the FFmpeg command and watch its output for connection errors, encoder errors, or repeated reconnects.
- In Live Control Room, wait for the incoming stream preview and check both picture and sound. Verify a transition across the end of the file to confirm the loop behaves as expected.
- When the preview and stream health are satisfactory, start the live event in YouTube. Keep the FFmpeg process and instance running for the duration of the broadcast.
- Monitor YouTube’s stream health and the server’s CPU, memory, disk, and network use. Leave the recommended 20% outbound bandwidth margin above the total stream bitrate.
For a long broadcast, account for the fact that YouTube’s cited automatic archive statement applies to streams under 12 hours. Do not assume a single indefinitely running broadcast will be archived as one complete video; plan separate sessions or verify archive behavior for longer events in YouTube’s encoder guidance.
Stop the stream safely
- End the live event in YouTube Live Control Room.
- Stop FFmpeg with
Ctrl+Cin the terminal running it, or stop its managed service if you configured one. - Check YouTube Studio for the resulting archived video and confirm the event ended as intended.
Troubleshooting common failures
- YouTube does not show an incoming preview: Confirm the copied server URL and key belong to the selected encoder stream, that there are no added spaces or shell-parsing problems, and that the instance can reach the ingest service. Try the RTMPS URL if supported by the installed FFmpeg build.
- FFmpeg reports an unknown encoder or protocol: The installed build may lack the selected codec or RTMP/RTMPS support. Install a build with the required components and verify support before restarting the event.
- The broadcast buffers or stream health is poor: Check actual outbound throughput and total bitrate, then reduce output bitrate or resolution if needed. YouTube’s 20% bandwidth margin is a recommendation, not a guarantee that a particular instance or route will sustain the stream.
- The image or audio is rejected or missing: Inspect the file’s streams and output settings. Ensure the audio options match whether the file has an audio stream, and align codec, frame rate, keyframe interval, and bitrate with YouTube’s current encoder guidance.
- The loop does not repeat: Verify
-stream_loop -1appears before the intended file’s-i. Check FFmpeg logs at the point where playback reaches the file’s end. - The process stops when you disconnect: A foreground process may end with its terminal session. Run it in a persistent terminal or configure an appropriate process supervisor, and confirm the process remains active after disconnecting.
- The stream ends after a server reboot or failure: FFmpeg must be restarted unless you have configured a supervisor or recovery procedure. YouTube can also disconnect an encoder; monitor and restart the process as needed.
Linode versus a computer you already control
| Consideration | Linode Compute Instance | Your own computer |
|---|---|---|
| Availability | Can run independently of your home computer, provided the instance and process stay up. | Requires the computer to stay powered on and connected. |
| Network | Depends on the instance’s outbound capacity and route to YouTube. | Depends on your local upload connection; YouTube recommends 20% headroom over total stream bitrate. |
| Media access | Video must be copied to and retained on the instance. | Video can remain on local storage available to FFmpeg. |
| Administration | You maintain the Linux instance, software, file, and running process. | You maintain the computer, FFmpeg, file, and uninterrupted power and network. |
| Cost and encoding capacity | Current price and capacity for this exact encode are not established by the cited Linode guide; check current Linode terms and test the chosen workload. | Depends on hardware and electricity costs; no universal cost or performance comparison is established here. |
Or let it run in the cloud
If the goal is simply to keep uploaded videos looping on YouTube without maintaining an FFmpeg host, StreamNeo is a cloud option: upload a recording or build a playlist, add your YouTube stream key once, and go live. Your computer and home connection do not have to stay on. It streams the uploaded video to YouTube, not from a camera.
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