To loop a prerecorded video from a Raspberry Pi into YouTube Live, prepare a file the Pi can play reliably, pace it with FFmpeg’s -re option, and loop it with -stream_loop -1. Then send the encoder output to the server URL and stream key shown in YouTube Studio. This is a continuous encoder feed, not a video upload—and YouTube’s documented automatic archiving applies to streams under 12 hours, so don’t assume one broadcast can run forever.
How do I prepare and loop videos for an always-on YouTube stream on a Raspberry Pi? The steps below cover the media, output settings, FFmpeg workflow, YouTube connection, preflight checks and the limits to plan around.
1. Prepare the video and audio
Choose the prerecorded video and audio you want viewers to hear, and make sure you have permission to stream them. The official technical guidance cited here does not define music or video licensing, so check the rights for your particular material rather than assuming that owning a file permits a public stream.
Before configuring FFmpeg, play the file from beginning to end. Confirm the picture and sound are correct, the file is not damaged, and its resolution and frame rate are realistic for the Pi you will use. If the file already has the codecs and properties you want to send, avoid adding a real-time conversion step without a reason: re-encoding adds workload, and the available official sources do not establish FFmpeg throughput for each Pi model.
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If you do need to convert a file, test the conversion and the resulting live stream on the intended Pi. A successful offline conversion alone does not establish that the board can convert at the required rate continuously.
2. Choose YouTube-compatible output settings
YouTube’s current RTMP/RTMPS encoder guidance lists H.264, H.265 and AV1 video, calls for constant bitrate encoding, and accepts AAC or MP3 audio. For a straightforward SDR H.264 setup, use YouTube’s recommended figures as a starting point—not as a guarantee that your internet connection or Pi can sustain the output.
| Target video | YouTube H.264 bitrate recommendation | When to consider it |
|---|---|---|
| 720p at 30 fps | 8 Mbps | Choose when lower upload demand is more important than the extra detail of 1080p. |
| 1080p at 30 fps | 14 Mbps | Choose when you want more detail and have upload capacity to sustain the higher target. |
These bitrate values are YouTube Help recommendations, accessed in 2026; they are not measurements of Raspberry Pi performance. YouTube recommends a two-second keyframe interval and says not to exceed four seconds. Its recommended advanced audio settings include 128 Kbps stereo and a 44.1 kHz stereo sample rate. Check YouTube’s live encoder settings, bitrates and resolutions for its current guidance.
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Test upload capacity and stream health using the actual moving picture and audio you intend to broadcast. A speed test can help, but it does not prove a connection will remain stable unattended. YouTube also advises testing before going live and monitoring stream health during the event.
3. Loop and pace the file with FFmpeg
FFmpeg provides the two input options central to this workflow: -stream_loop -1 loops an input indefinitely, while -re reads a file at its native frame rate, which FFmpeg documents as useful for live output. Put input-specific options before the input filename.
ffmpeg -re -stream_loop -1 -i "/path/to/video.mp4"
-f flv "[YouTube server URL]/[YOUR_STREAM_KEY]"This is a command outline, not a universal copy-and-paste command. The correct mapping and encoding options depend on the file’s codecs, whether you need to re-encode video or audio, the FFmpeg build installed on your Pi, and the ingest destination YouTube provides. Never put a real stream key in a public tutorial, screenshot, shared script or support post. Use FFmpeg’s official documentation to check option behavior and the options supported by your installed build.
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If the file needs re-encoding, choose settings consistent with the YouTube output profile and test the exact command on the target board. If the file is already suitable for the intended output, assess whether it can be sent without re-encoding; the cited sources do not establish that stream-copying or transcoding will perform reliably on a particular Pi model.
4. Connect the encoder to YouTube Live
- In YouTube Studio, create or select a stream in Live Control Room.
- Copy the server URL and stream key displayed for that stream. Keep the key private.
- Insert the destination details into your encoder command or configuration, then start FFmpeg on the Pi.
- Wait for the incoming preview in Live Control Room. For a scheduled stream, use the Live Control Room’s Go Live control after the preview appears.
YouTube’s encoder setup instructions describe this server URL, key, preview and broadcast workflow. Starting FFmpeg sends the encoder feed; it does not by itself mean a scheduled broadcast has been started in Live Control Room.
5. Test the full loop before leaving the Pi unattended
Run a representative test with both motion and audio before relying on the setup. YouTube’s advice is simple: “Make sure to test before you start your live stream.” During the test, inspect the preview and stream-health messages, and check these practical points:
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- The file plays through and returns to its beginning as expected.
- Picture and sound remain synchronized and audible after the loop boundary.
- The encoder keeps pace rather than falling behind or reporting errors.
- The Pi’s network connection sustains the chosen output and YouTube’s preview remains healthy.
These checks help find problems in your own setup; they are not a guarantee of uninterrupted operation or a claim that a particular Pi model has been tested for your workload.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.6. Account for Raspberry Pi model and YouTube broadcast limits
Pi 5 encoding context
Raspberry Pi’s rpicam-vid documentation says Pi 5 uses software video encoders. It describes a --low-latency option that changes encoder settings so frames are output more quickly, at a small coding-efficiency cost and possibly a slightly lower maximum frame rate; the same documentation says Pi 5 can still easily achieve 1080p30. Those notes concern Raspberry Pi’s camera-capture utility, not this prerecorded-file FFmpeg workflow. They are platform context, not proof of how a particular FFmpeg command will perform. Test the actual file, settings and network on your intended board. See the rpicam-vid documentation.
Long broadcasts and archiving
YouTube says streams under 12 hours are automatically archived. Its cited help page does not explain what happens to broadcasts longer than 12 hours. Treat continuous transmission from the Pi and YouTube’s broadcast lifecycle or archive behavior as separate concerns: do not rely on a single broadcast running forever or assume its archive will behave like one under 12 hours. If the channel needs ongoing coverage, plan and test a restart schedule rather than treating an infinite FFmpeg input loop as a guarantee of an infinite YouTube broadcast.
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Common problems and fixes
| Symptom | What to check | Practical fix |
|---|---|---|
| No YouTube preview | Server URL, stream key, destination syntax, and whether FFmpeg is still running. | Copy the current URL and key from the correct Live Control Room stream, correct the destination, and restart the encoder. Keep the key private. |
| Unstable stream health or dropped frames | Whether upload capacity can sustain the selected bitrate; whether FFmpeg is falling behind. | Run a representative test, inspect encoder and YouTube health messages, and try a lower-demand output such as 720p30 if it better fits the connection. |
| Video or audio fails at the loop point | Whether the source file plays through cleanly and its streams are mapped as intended. | Inspect the original file, confirm FFmpeg’s input and mapping options, then retest the entire loop with audio and motion. |
| Pi cannot keep up after adding conversion | Whether real-time re-encoding is required and whether the chosen settings overload the target board. | Use a file already prepared for the intended output where practical, or reduce the conversion workload and test again. No model-specific FFmpeg throughput is established here. |
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