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Run two independent FFmpeg processes on one Linode: each process loops its own video and publishes to a separate YouTube Live event using that event’s stream URL and key. The setup is feasible in principle, but no cited source benchmarks this exact two-stream workload on a current Linode plan. You must test the instance’s CPU, memory, outbound bandwidth, and transfer allowance under both streams before relying on it.
How the two-stream setup works
Use one FFmpeg process per video and YouTube event. Each process reads and loops its own prerecorded file, then sends the encoded stream directly to YouTube. Keep the inputs, event credentials, and process supervision separate so an issue with one stream does not automatically stop the other.
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This is different from an RTMP relay. A relay is useful when one incoming feed must be forwarded to multiple destinations. For two different loop videos going to two YouTube events, two direct FFmpeg outputs are the simpler architecture; the cited Linode guidance does not require a relay for this case.
Before configuring the server, confirm that the YouTube channel can run the events you intend to schedule. Create or select a separate Live Control Room event for each broadcast. YouTube’s encoder workflow calls for entering the server URL and the associated stream key in the encoder: YouTube: Create a live stream with an encoder.
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Set up each YouTube event and protect its key
- In YouTube Studio, open Live Control Room and create or select the first stream event.
- Copy that event’s stream URL and stream key into the first FFmpeg configuration. Repeat for the second event, keeping its URL and key paired with the second process.
- Treat both keys as credentials. Do not publish them in scripts, logs, screenshots, or a publicly accessible repository. If a key is exposed, replace it in YouTube Studio and update the matching process.
- Use RTMPS when available for encrypted delivery to YouTube. YouTube’s current encoder guidance lists RTMP/RTMPS and recommends RTMPS: YouTube encoder settings and recommendations.
Prepare compatible video and configure FFmpeg
Use a separate input file for each process. StreamNeo’s FFmpeg example uses -re to read a file at its native rate and -stream_loop -1 to repeat it indefinitely. The example also uses stream copy, which is suitable only when the input’s container and encoded audio/video streams are compatible with the selected YouTube output. There is no universal copy-mode command that works for every file.
A command’s basic shape is:
ffmpeg -re -stream_loop -1 -i /path/to/video-one.mp4 -c copy -f flv "rtmps://YOUTUBE-INGEST-URL/STREAM-KEY"Replace the input path and ingest URL/key with the values for that event. Use a separate command and the second event’s values for video two. Keep credentials out of shell history where possible; a protected configuration file or environment-managed secret is safer than a command stored in a shared script.
The command is illustrative, not a guarantee that -c copy will work with any MP4. If YouTube does not accept the output or the file’s codecs do not match the intended delivery, configure FFmpeg to transcode to a supported format instead. Transcoding adds CPU demand, so include it in capacity testing. Do not assume that changing a filename or container alone makes incompatible streams suitable.
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Choose resolution, bitrate, keyframes, and audio
YouTube’s encoder page, checked on October 3, 2026, lists H.264, H.265/HEVC, and AV1, recommends constant bitrate (CBR), and recommends a two-second keyframe interval without exceeding four seconds. It lists AAC or MP3 audio, with 128 Kbps stereo and a 44.1 kHz stereo sample rate. These are YouTube’s published encoder recommendations; recheck the page when configuring a stream because guidance can change.
| Output example | YouTube-recommended video bitrate | Two streams, video bitrate combined |
|---|---|---|
| 720p at 30 fps, H.264 | 8 Mbps | About 16 Mbps |
| 1080p at 30 fps, H.264 | 14 Mbps | About 28 Mbps |
| 720p at 30 fps, AV1 or H.265 | 6 Mbps | About 12 Mbps |
| 1080p at 30 fps, AV1 or H.265 | 10 Mbps | About 20 Mbps |
The combined figures simply add the two recommended video bitrates; they exclude audio and network/protocol overhead. They are planning numbers, not a claim that every file requires exactly those rates or that a Linode instance will sustain them. YouTube transcodes the incoming stream for viewers, but the server still has to deliver both inputs at their configured output rates.
Set each stream’s bitrate and keyframe interval in the media encoding path. If stream-copy mode is used, the file already contains encoded settings; inspect the media and verify that its bitrate, codec, resolution, frame rate, and keyframe spacing meet the delivery target. If they do not, transcode rather than assuming FFmpeg can alter encoded properties while copying.
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Plan Linode capacity and transfer
Network throughput
The server must sustain the sum of both outbound streams continuously, plus audio, protocol overhead, and other account traffic. For a rough transfer estimate in decimal gigabytes, use:
combined Mbps × 0.45 × hours streamed
For example, two H.264 1080p30 streams at YouTube’s recommended 14 Mbps each produce a video-only estimate of 28 × 0.45, or about 12.6 GB per hour. Actual transfer will be higher once audio and overhead are included. Check the current transfer allowance and billing terms for the specific Linode plan and account before choosing resolution; historical community posts are not current plan quotes.
CPU and memory
Linode’s RTMP guide says one stream may fit a 1 GB instance and suggests at least 4 GB for retransmitting to several sites or converting formats. That is broad guide advice, not a benchmark for two separate loop encoders. Compatible stream copy generally uses less CPU than transcoding, but actual needs depend on the files, output settings, instance, and workload. Run both streams together for a sustained test and watch CPU, memory, dropped frames, and network use before depending on a size.
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A Linode Community respondent once reported about 10 Mbps outbound for one 4K stream and about 20 Mbps for two, then about 4.03 Mbps combined after lowering both to 480p. That is one operator’s anecdote, not a controlled benchmark or a prediction for your server. The useful takeaway is to measure concurrent output and fit it to the plan’s current transfer budget.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Run, supervise, and verify both processes
- Start the first FFmpeg process with its own input and event credentials, then start the second with its separate input and credentials.
- Check each process output for connection errors, encoder errors, and repeated reconnects. A running FFmpeg process alone does not prove YouTube is receiving a healthy stream.
- In YouTube Live Control Room, verify stream health for each event and check that both video and audio look and sound as expected.
- Test with representative motion and audio before relying on the loop. YouTube recommends testing ahead of the broadcast and monitoring stream health during it.
- Configure process supervision and external alerts so a process exit is visible and can be restarted. Test an intentional process stop and a network interruption. The cited sources do not establish a particular supervisor configuration or uptime guarantee for this two-process design.
Keep the processes independently supervised: a shared shell session that disappears, a single script that exits on one error, or an unmonitored restart loop can leave a stream offline without an obvious signal. Choose a supervisor and alerting method appropriate to your server setup, then verify its behavior rather than assuming it will recover correctly.
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- YouTube shows no incoming stream: Confirm the event is active, the matching stream URL and key are correct, and the process can reach the ingest endpoint. If a key was replaced, update the process configuration.
- The stream connects but reports poor health or dropped frames: Check outbound bandwidth under both concurrent streams, then lower the configured bitrate or resolution if the server or plan cannot sustain the combined rate. Also check CPU pressure if either process transcodes.
- FFmpeg fails immediately or YouTube rejects the output: Verify file readability, container and codec compatibility, and output format. Stream copy preserves the input streams; transcode if the source does not meet the intended output format.
- Video plays but audio is missing or unsuitable: Inspect the input audio stream and confirm the output uses a supported audio codec and settings. YouTube lists AAC or MP3 and 128 Kbps stereo at 44.1 kHz in its guidance.
- One loop stops while the other continues: Inspect the failed process’s logs and supervisor state. Separate supervision and alerts help identify and recover one process without unnecessarily stopping the healthy stream.
- Transfer use is higher than expected: Recalculate from both configured bitrates and actual streaming hours, then account for audio, overhead, and other server traffic. Confirm the plan’s current transfer allowance and billing terms rather than relying on old community figures.
When to use a relay, desktop, or managed loop service
For two different prerecorded videos sent to two YouTube events, two FFmpeg processes provide direct control over each input and output. Other methods make sense when their trade-offs fit the job:
| Approach | Best fit | Main trade-off |
|---|---|---|
| Two FFmpeg processes on one Linode | Separate videos and events, with control over files and output settings | You manage the server, process recovery, monitoring, updates, and transfer capacity. |
| RTMP relay | Forwarding one incoming feed to multiple destinations | The relay still sends a copy to each destination and may need more resources for transcoding; Linode’s 4 GB guidance is general, not a guarantee for this workload. |
| OBS on a desktop | A workflow where graphical controls and a desktop session are useful | The desktop machine and its connection must remain available for the stream. |
| StreamNeo managed cloud looping | Keeping uploaded videos streaming to YouTube without operating a server or leaving a computer on | You rely on a managed service for storage and operation; check current service terms and fit for your number of streams. |
Or let it run in the cloud
StreamNeo is the first managed alternative to consider if your goal is simply to keep prerecorded videos looping on YouTube: it runs always-on from the cloud, supports the uploaded quality up to 4K 60fps at one flat price per slot, and offers a first day free with no card. Upload your recording or build a playlist, add the YouTube stream key, and go live. Your computer can stay off; StreamNeo automatically recovers if YouTube drops the stream. Every slot includes 10 GB storage pooled across active slots, 24/7 looping and playlists, and team support. UPI and cards are accepted in India; card checkout is available worldwide. See StreamNeo for current terms. Monthly pricing is $9.99 per month.
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