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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →You can run a continuous YouTube Live stream from a Hetzner VPS by looping media with FFmpeg, sending it to YouTube over RTMPS, and supervising the encoder so it can recover from process failures. You will also need to secure the stream key, check YouTube’s preview and stream health, and estimate Hetzner’s outbound traffic before leaving a stream running.
What you need before you start
- A Hetzner Cloud server with an internet-reachable network interface and enough CPU, memory, and outbound traffic for your stream.
- A compatible video file on the server, or another media source that FFmpeg can read.
- FFmpeg installed on the server.
- A YouTube channel that can create a live broadcast, plus its ingest URL and stream key.
- A plan for running FFmpeg under a process supervisor and checking both server logs and YouTube stream health.
This setup is self-managed: neither YouTube nor Hetzner guarantees that a particular stream will remain uninterrupted. A process supervisor can restart a failed encoder process, but you must test how your selected input and server behave after a network interruption or reboot.
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Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Scan for outdated or missing drivers - takes under a minute3Clear out junk files and repair common Windows errorsPrepare the YouTube broadcast
- Open YouTube Live Control Room and create or select the broadcast you intend to use. You can also create a broadcast through the YouTube Live Streaming API.
- Get the ingest URL and stream key associated with that broadcast. Treat the key as a password: anyone who obtains it may be able to publish to your channel.
- Use the RTMPS ingest option when available. YouTube recommends it as a secure extension of RTMP; RTMPS encrypts the encoder-to-ingest connection.
- Keep the broadcast private or unlisted while you test. Start FFmpeg, then check the Control Room preview and stream-health diagnostics before making the stream public.
YouTube’s encoder guidance supports RTMP/RTMPS ingest, H.264, H.265, or AV1 video, up to 60 fps, AAC or MP3 audio, constant bitrate (CBR), and a recommended two-second keyframe interval that should not exceed four seconds. For a straightforward SDR setup, H.264 with AAC is a practical example profile; choose settings that match the source and available sustained network capacity.
Check Hetzner networking and traffic first
Confirm outbound access
The VPS needs outbound network access to YouTube’s ingest endpoint. Hetzner’s Cloud server overview describes Cloud networking and public Primary IP options. If you have restricted traffic in a Cloud Firewall, check its egress rules and allow the outbound connections your stream requires.
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Estimate the monthly data transfer
Your stream’s video and audio travel outbound from Hetzner. Estimate traffic from the selected bitrate and the total hours you expect to broadcast, then leave room for protocol overhead, retries, updates, and other server traffic. As arithmetic rather than a provider allowance, a sustained 1 Mbps for 30 days is about 324 GB in decimal units before overhead.
Hetzner’s traffic page lists 20 TB of monthly included traffic for EU CX, CPX, and CAX Cloud Servers; US and Singapore allowances vary by plan. The page says excess traffic is charged in 100 MB blocks. Confirm the current allowance and overage terms for your exact product, region, and account on Hetzner’s traffic documentation before choosing a bitrate.
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Do not treat expected bandwidth as a guarantee
Hetzner says Cloud bandwidth is not guaranteed. Its technical FAQ says customers can expect about 300–500 Mbit/s, with Cloud instances sharing the host’s 10 Gbit connection. That is not an individual-instance speed guarantee. For transcoding or other sustained CPU work, measure performance on the server you plan to use; Hetzner distinguishes shared-resource and dedicated-resource plans in its Cloud FAQ.
Choose a bitrate and output profile
Use YouTube’s current encoder guidance as a starting point, not as a promise that a particular VPS or source will be stable. Its recommended H.264 bitrates include 4 Mbps for 240p–720p30 and 10 Mbps for 1080p30. Do not reuse one bitrate blindly at other resolutions, frame rates, or with another codec.
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- Match output resolution and frame rate to the source and the quality you actually need.
- Use CBR and target a two-second keyframe interval; YouTube’s recommended maximum interval is four seconds.
- Use AAC audio if your source has audio, and choose an audio bitrate appropriate to it.
- Compare the combined stream bitrate and estimated monthly egress with your Hetzner plan’s current allowance.
Run a looping file through FFmpeg
The following is an illustrative pattern for looping an existing video file in real time and sending it to YouTube. It has not been verified for every FFmpeg build, input file, or YouTube account. The example outputs 30 fps with a 60-frame GOP (a two-second keyframe interval at that frame rate) and uses a 4 Mbps video bitrate. Adjust the output to your source and YouTube’s current guidance.
ffmpeg -re -stream_loop -1 -i /path/to/video.mp4
-c:v libx264 -preset veryfast -b:v 4M -maxrate 4M -bufsize 8M
-r 30 -g 60 -c:a aac -b:a 128k
-f flv 'rtmps://INGEST_HOST/APP/STREAM_KEY'- Replace
/path/to/video.mp4with the actual media path.-repaces a file input in real time, while-stream_loop -1requests indefinite looping. - Replace the endpoint placeholder with the exact RTMPS ingest URL and stream key shown for your YouTube broadcast. Do not publish a real key in a script repository, command history, or logs visible to others.
- Set the video codec, bitrate, frame rate, GOP, and audio options deliberately. This example re-encodes with
libx264; it is not a universal copy-mode command, and its values may not suit a different source or output profile. - Start the command while the broadcast is private or unlisted. Confirm the Control Room preview, audio, resolution, and stream-health status before making the broadcast public.
For production use, keep the key in a restricted configuration or environment file rather than embedding it in a broadly readable script. Run FFmpeg as a dedicated unprivileged user, restrict SSH access, and keep the server updated. If the key is exposed, regenerate it in YouTube and update the server configuration.
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Keep the encoder running and recover deliberately
Running FFmpeg in a terminal is not a continuity plan: a closed session, process crash, VPS reboot, missing input, or network interruption can stop the feed. Use a supervisor such as systemd with restart-on-failure behavior, and validate the exact restart and reconnect behavior with your chosen file and FFmpeg build. A process restart alone does not prove that YouTube has resumed receiving a healthy stream.
Monitor FFmpeg’s status and logs, CPU and memory, network use, source-file availability, and YouTube’s stream-health diagnostics. Test at least a process failure, a server restart, and a dropped connection while you can observe the broadcast. The appropriate recovery response can differ depending on whether the source is a local file, a network input, or a playlist.
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Rights and channel-policy checks
Before streaming, confirm that you have the rights needed for every video, music track, image, and other material in the loop. This setup does not grant permission to rebroadcast third-party content. Check YouTube’s current live-streaming and monetization policies for your channel and the specific content; a continuous or repetitive format does not by itself establish eligibility or policy compliance.
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Cost and operational trade-offs
A VPS gives you direct control over FFmpeg, files, and encoder settings, but you manage server setup, key security, monitoring, recovery, CPU use, and traffic costs. Compare the actual server plan’s recurring price and included egress in your region with the bitrate-based traffic estimate. A plan’s headline network figure should not be read as guaranteed per-instance throughput.
Or let it run in the cloud
If you do not want to manage a VPS and FFmpeg, StreamNeo is a cloud service for keeping a YouTube channel live from uploaded videos. Upload a recording or build a playlist, add your YouTube stream key once, and go live; it loops the media from the cloud, so your computer and home connection do not have to stay on.
- Nothing has to stay running at home.
- One flat price per slot for any uploaded quality up to 4K 60fps, with no re-encode or quality tiers.
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