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To run a YouTube radio livestream in Docker, use FFmpeg to send a continuous audiovisual feed to YouTube Live, then run FFmpeg as the foreground process in a container with a suitable restart policy. You need a channel enabled for live streaming, a YouTube stream URL and key, media containing audio, and a video track—often a still image or looping visual. Docker can restart an exited container, but it does not guarantee the stream stays healthy; test reconnects and monitor YouTube’s Live Control Room.
What you need before building the stream
- A YouTube channel eligible for live streaming. YouTube says the channel must be verified, have no live-streaming restriction in the preceding 90 days, and the streamer must be at least 16. Check eligibility and enable live streaming before troubleshooting the encoder: YouTube’s live-streaming requirements.
- A stream endpoint and key. In YouTube Studio, open Live Control Room, create or select a stream, then copy the server URL and matching stream key from its settings. YouTube recommends RTMPS. Treat the key like a password; YouTube describes stream keys as “your YouTube stream’s password and address.” If exposed, reset it in Live Control Room. See encoder stream setup, RTMPS guidance, and stream settings.
- Media and a video track. Choose a long program or playlist, plus a still image, visualizer, or looping video. A conventional YouTube audiovisual stream needs video as well as audio; an audio-only input does not automatically supply the expected video track.
- A host and tested FFmpeg build. Use a maintained image or build an image reproducibly with the codecs and protocols you need. The example below uses
libx264; check that your FFmpeg build includes it and supports your selected RTMP or RTMPS workflow.
Choose the media layout and encoding
One audiovisual file
If a single file already contains the program audio and its visual, loop that input with -stream_loop -1. Explicitly map the audio and video streams so FFmpeg sends the intended tracks.
Separate audio and visual
For a music file plus a still image or video, configure both inputs and map the desired streams. A still image needs to produce a video stream at the intended frame rate and duration; the exact input options depend on the file and FFmpeg build. Check timestamps and duration behavior with a short unlisted test before relying on it continuously.
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Use YouTube’s settings for the chosen output
YouTube lists H.264, H.265, and AV1 video for RTMP/RTMPS ingestion, AAC or MP3 audio, and recommends constant bitrate encoding. Its encoder guidance recommends a two-second keyframe interval and says not to exceed four seconds. For stereo AAC, it recommends 128 Kbps. Select bitrate from YouTube’s table for the codec, resolution, and frame rate you actually use—not from one universal value. Examples in its current guidance include H.264 720p at 30 fps at 3 Mbps recommended, and H.264 1080p at 30 fps at 5 Mbps minimum and 14 Mbps recommended. Figures are from YouTube Help; the page reviewed does not state a publication year. See YouTube’s encoder settings.
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For a static radio visual, a modest resolution and frame rate may be adequate. The command below is an illustrative starting shape, not a tested command or a guarantee for every FFmpeg image. Replace the endpoint, files, codecs, and bitrate with the values for your actual setup.
ffmpeg -re -stream_loop -1 -i /media/program.mp4
-map 0:v:0 -map 0:a:0
-c:v libx264 -preset veryfast -tune stillimage
-r 30 -g 60 -keyint_min 60 -sc_threshold 0
-b:v 2500k -maxrate 2500k -bufsize 5000k
-c:a aac -b:a 128k -ar 44100
-f flv "${YOUTUBE_RTMP_URL}/${YOUTUBE_STREAM_KEY}"Here, -re reads the file at its native rate, -stream_loop -1 loops the input indefinitely, and the mapping selects its first video and audio streams. At 30 fps, the GOP value of 60 targets a two-second keyframe interval. The sample video bitrate is only an example; it is not a universal YouTube recommendation. Keep the key out of command histories, logs, screenshots, and source control.
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Build a Docker service for FFmpeg
Run one foreground FFmpeg process per service. Mount media read-only when practical, choose a restart policy that matches how you operate the host, and provide the key through a secret mechanism configured for both Docker and the application. Compose secrets do not automatically make a secret available as an FFmpeg argument; the entrypoint or wrapper must read it safely and construct the output without exposing it in logs or process listings.
services:
radio:
image: your-tested-ffmpeg-image
command: ["/bin/sh", "-c", "exec ffmpeg ..."]
volumes:
- ./media:/media:ro
restart: unless-stopped
secrets:
- youtube_stream_key
secrets:
youtube_stream_key:
file: ./secrets/youtube_stream_keyThis is a Compose structure, not a drop-in deployment: the image name and full FFmpeg command must be supplied for your environment. Prefer an entrypoint script or exec-form arguments where possible, and validate shell quoting. Docker’s Compose reference covers service images, commands, environment and volumes: Compose services. Docker advises using secrets for sensitive values; if you use an .env file for local development instead, keep it out of version control and restrict its file permissions. See Docker’s environment-variable guidance.
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What the restart policy does—and does not do
Docker can automatically restart a container after it exits or after a daemon restart. With unless-stopped, a container you manually stop remains stopped after the daemon restarts. Restart policies apply after the container has started successfully; they manage container lifecycle, not YouTube stream health or network recovery. Test the behavior on the actual host. Details: Docker restart policies.
Handle temporary connection failures
A container restart policy only helps if FFmpeg exits. For temporary RTMP failures while FFmpeg is still running, FFmpeg documents a FIFO muxer configuration with recovery options. Its example uses -f fifo, -fifo_format flv, -attempt_recovery 1, and -recovery_wait_time 1 alongside explicit stream mapping; it describes attempting recovery every second indefinitely. Check the installed FFmpeg version and test recovery behavior before using it in production. It is not an end-to-end uptime guarantee. See the FFmpeg all-options documentation.
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Use recovery at the encoder and container restart as complementary mechanisms only after testing their interaction. A stable-looking container does not prove that YouTube is receiving a healthy stream.
Test the stream before relying on it
- Start with a private or unlisted test. YouTube recommends setting up the encoder ahead of time, checking the Live Control Room preview, testing audio and motion similar to the real stream, and monitoring stream health. See YouTube live-streaming tips.
- Confirm the container stays up and FFmpeg decodes the selected files without errors.
- Listen for audible, unclipped audio and confirm the expected visual is present.
- Check that the preview appears in Live Control Room and that stream health is acceptable before making the event public.
- Verify upload capacity against the total outgoing stream bitrate. YouTube recommends 20% headroom; allow for the combined primary and backup bitrate if you send both, and check the connection under realistic conditions. See YouTube’s streaming tips.
Troubleshoot common failures
| Symptom | Likely cause | What to check or change |
|---|---|---|
| FFmpeg cannot connect or YouTube rejects the feed | Wrong event URL or key, mismatched endpoint and key, firewall or host egress restriction, or unsupported RTMPS in the build. | Copy the URL and key for the selected event again, check outbound network access and protocol support, and use a fresh key if the old one may be invalid or exposed. Follow YouTube RTMPS troubleshooting and YouTube stream troubleshooting. |
| Video appears but audio is missing | The chosen file may not contain the mapped audio stream, or mapping may target the wrong input. | Inspect the input’s streams, explicitly map the intended audio stream, and confirm the audio is audible in a short test. |
| Audio works but the video is absent | The stream may be audio-only, the mapped video stream may not exist, or a still-image input may not have been configured to produce video. | Add or correctly configure a still, visualizer, or looping video input; map it explicitly and check the Live Control Room preview. |
| Stream buffers or loses health | Upload capacity may be insufficient or unstable for the total bitrate. | Check stream health and available upload under load. Reduce the selected resolution, frame rate, or bitrate using the applicable YouTube table, and preserve its recommended 20% headroom. |
| Container repeatedly exits | FFmpeg may fail to decode a file, required codec support may be absent, or the command may be malformed. | Inspect container logs without exposing secrets, verify the selected image’s codecs, and test the command against the media locally before restarting the service. |
| Container stays up but broadcast is no longer reaching YouTube | A process can remain alive despite a broken stream connection. | Watch Live Control Room stream health and test FFmpeg FIFO recovery against the actual failure mode. Docker restart policy alone does not detect an unhealthy broadcast. |
Plan for stream duration and archives
YouTube says streams under 12 hours are automatically archived; for longer sessions, do not assume automatic archiving. End the encoder feed and finish the event in Live Control Room as appropriate for the event. See YouTube’s encoder workflow.
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Or let it run in the cloud
If maintaining Docker, a host, and FFmpeg recovery is more work than you want, StreamNeo is a cloud service for keeping a YouTube channel live from uploaded videos. Upload the recording or make a playlist, add your YouTube stream key once, and go live. It loops from the cloud, so nothing at home has to stay on. StreamNeo sends the video as uploaded, up to 4K 60fps, at one flat price per slot; it automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly is $9.99 per month. It plays uploaded videos rather than going live from a camera. Start the free first day with StreamNeo.
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