You can use SRS in Docker as an RTMP relay between a video source and YouTube, but the official SRS quick start is not a complete 24/7 deployment recipe. You still need to configure the outgoing YouTube connection, keep the container and host running, monitor stream health, and plan for recovery if a process or YouTube session stops.
How the SRS-to-YouTube stream works
SRS is the relay server in the chain; it is not the video source or YouTube. A typical setup is:
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Video file, camera, or production source → FFmpeg or OBS → SRS over RTMP → an outgoing publisher or relay → YouTube ingest.
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SRS’s Docker example shows a publisher sending a stream into SRS and demonstrates local playback. It does not, by itself, configure SRS to forward that stream to YouTube. For that outgoing leg, configure a publisher or relay with the YouTube server URL and stream key. SRS documents RTMP as useful for compatibility with platforms including YouTube, while also supporting other protocols. See the SRS Docker documentation and its RTMP guidance; the latter is labeled v7 unstable, so check the current release documentation before using it as a deployment reference.
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What you need before starting
- A Docker-capable host that can stay powered on and connected for the intended broadcast.
- An SRS image and configuration chosen for the same release. The SRS Docker page is labeled v8, but its example command uses the
ossrs/srs:5image tag. Confirm the current tag and its matching configuration rather than assuming the example tag is the latest. - A media source and publisher, such as FFmpeg for a file or OBS for a production feed.
- A YouTube live stream, its ingest server URL, and its stream key from Live Control Room.
- Enough dependable upload capacity for the selected video and audio settings, plus a plan for process supervision, logs, monitoring, and recovery.
Start SRS in Docker
Expose only the ports you need
The SRS basic example publishes RTMP on port 1935 and also exposes port 8080 for HTTP-FLV/HLS playback and port 1985 for the API. If you only need an RTMP relay, do not expose demo playback or API ports unless your configuration and operations need them. Restrict access to any management interface to trusted networks.
Run the documented quick-start command as a test
The SRS documentation demonstrates this foreground command:
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docker run --rm -it -p 1935:1935 -p 1985:1985 -p 8080:8080 ossrs/srs:5
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Publish a test stream into SRS
Loop a local file with FFmpeg
The SRS example uses FFmpeg’s -stream_loop -1 to repeat a file input while publishing to SRS. A sample form is:
ffmpeg -stream_loop -1 -re -i input.mp4 -c copy -f flv rtmp://127.0.0.1/live/livestream
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Replace input.mp4 with a file accessible to FFmpeg and use the SRS publish URL appropriate to your configuration. This loops the input; it does not restart a failed FFmpeg process, keep Docker or the host alive, restore a network connection, or reopen a YouTube session.
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Before adding YouTube, verify that SRS receives the publisher and that the stream plays at a local endpoint supported by your configuration. SRS’s examples include RTMP playback, HTTP-FLV, and HLS. Use the documentation’s matching URLs and ports for the release and configuration you actually run; the sample endpoints are not universal configuration defaults.
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Configure the outgoing YouTube stream
- Open YouTube Live Control Room and create or select the live stream.
- Copy the server URL and stream key shown for the stream. YouTube’s encoder setup requires both values. Its help describes stream keys as password-like credentials; keep the key private, do not put it in public examples or logs, and reset it if exposed. See Create a YouTube live stream with an encoder.
- Configure the outgoing publisher or relay to send SRS’s received feed to YouTube’s ingest URL using that key. Keep the YouTube key on the outgoing leg, not in the public SRS publish example. The SRS Docker quick start demonstrates the incoming publisher hop only; it does not supply a complete YouTube-forwarding configuration.
- Test before going public. YouTube recommends testing, checking the preview, and monitoring stream health. Confirm the outgoing feed appears correctly in Live Control Room before starting the public broadcast.
Choose YouTube encoder settings
YouTube recommends RTMPS for live ingestion. Its current encoder guidance supports RTMP/RTMPS and lists H.264, H.265, or AV1 video; up to 60 fps; AAC or MP3 audio; constant bitrate (CBR); and a two-second keyframe interval, with intervals not exceeding four seconds. Use the codec and bitrate settings supported by the actual outgoing encoder and your YouTube workflow. Full guidance is on YouTube’s encoder settings, bitrates, and resolutions page.
| YouTube H.264 example | Minimum bitrate | Recommended bitrate |
|---|---|---|
| 1080p at 30 fps | 5 Mbps | 14 Mbps |
| 720p at 30 fps | 3 Mbps | 8 Mbps |
These are YouTube-published settings, not independent tests or guarantees of image quality or delivery. Pick a resolution and frame rate your source can produce and your connection can sustain with headroom; validate the resulting stream in Live Control Room.
Make the setup suitable for continuous operation
A looped input is only one part of an always-on pipeline. A continuous deployment also needs an operator-selected process and container restart policy, persistent configuration, a host and network that remain available, useful logs and alerts, and a response plan for YouTube session termination. Decide who or what detects a failed publisher, a lost SRS process, or an unhealthy YouTube feed, and how it is restarted. The SRS quick start does not prescribe or guarantee a particular supervision stack.
Do not assume one YouTube live session will run or archive indefinitely. YouTube says streams under 12 hours are automatically archived; its guidance does not promise automatic archiving for a single session that exceeds that duration. Plan and verify the current YouTube workflow if your broadcast may run longer.
Common problems and fixes
- FFmpeg cannot connect to SRS: Check that the container is running, RTMP port 1935 is published and reachable, the publish URL matches the SRS configuration, and the host firewall permits the needed traffic.
- SRS receives the stream but YouTube shows no preview: Check the outgoing publisher’s destination URL and stream key in Live Control Room. Confirm the relay is forwarding the received feed, rather than assuming the SRS local-playback example also sends to YouTube.
- The stream stops when the terminal closes: The documented foreground
docker run --rm -itis a demonstration, not a background service strategy. Configure appropriate supervision and restart behavior for your deployment. - A file repeats but the broadcast still fails:
-stream_loop -1only repeats the FFmpeg input. It does not repair the container, host, network, publisher process, or YouTube session; monitor each part and define recovery actions. - YouTube reports poor stream health: Test with a lower resolution or frame rate if necessary, check that the uplink can sustain the chosen bitrate, and verify CBR, codec, and keyframe settings against YouTube’s current guidance.
- A stream key may have leaked: Reset it in YouTube Live Control Room and update the outgoing publisher with the replacement. Treat the key like a password.
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