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What you need before starting
- An eligible channel: YouTube says the channel must be verified and have no live-streaming restrictions in the preceding 90 days. Check YouTube’s live-streaming tips if you are unsure about eligibility.
- A home server that can stay online: It can be an existing computer or server. The documentation cited here does not establish minimum CPU, memory, or storage requirements, and you do not need to buy a particular model based on these instructions.
- Stable upload bandwidth: Allow for the encoder’s video bitrate plus audio and connection overhead. A speed test is a useful check, not a guarantee that the connection will remain stable.
- FFmpeg: Install a build that includes the input demuxers and codecs your files need, and confirm the executable is available as
ffmpeg. The FFmpeg command-line documentation describes its options and stream selection. - Media you are entitled to stream: A loop does not change who owns a game, soundtrack, or other recording. Check the rights and platform rules for every video and audio track; do not assume that a recording is cleared just because you can play it locally.
Choose the YouTube broadcast setup
Use one continuous watch page or separate broadcasts?
YouTube distinguishes the incoming stream—the feed and its delivery settings—from the viewer-facing broadcast, which is the watchable event or video. For a channel that should have one ongoing watch page, set up an ongoing broadcast and keep the encoder feed running. If you want separate event videos, manage those broadcasts separately. Google’s API guide describes maintaining a 24/7 broadcast while starting and ending another broadcast from the same incoming stream; it also says a stream can be bound to up to three broadcasts. Those API details matter when automating broadcast management, but you do not need to write API code for an ordinary Live Control Room setup. See Understanding broadcasts and streams, updated 2026-09-14 UTC.
Get the ingest URL and key
- Open YouTube Live Control Room and create or select the live setup you intend to use.
- Copy the stream URL and stream key shown there. Use the endpoint YouTube supplies rather than guessing an ingest server or path.
- Keep the stream key secret. It authorizes sending a feed to your channel; do not paste it into public scripts, screenshots, support posts, or source control.
YouTube recommends RTMPS, which encrypts RTMP traffic using TLS/SSL. Use the RTMPS endpoint from Live Control Room and its matching key. YouTube’s guidance is at Encrypt your stream using RTMPS.
Set FFmpeg output to match YouTube
YouTube’s current encoder guidance lists RTMP/RTMPS ingest; H.264, H.265/HEVC, or AV1 video; AAC or MP3 audio; up to 60 frames per second; constant bitrate encoding; and a recommended two-second keyframe interval that must not exceed four seconds for the listed setup. Its H.264 bitrate examples are:
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| Output | YouTube H.264 minimum | YouTube H.264 recommended |
|---|---|---|
| 1080p at 30 fps | 5 Mbps | 14 Mbps |
| 1080p at 60 fps | 6 Mbps | 17 Mbps |
These are YouTube recommendations, not a promise that a particular home connection can sustain them. The full table varies by resolution, frame rate, and codec; use the settings for your intended output on YouTube’s encoder settings page. Choose a rate your upload connection can sustain, and test it while watching stream health.
Stream copy or transcode?
- Stream copy sends the input’s existing encoded streams without decoding and re-encoding them. It avoids the transcoding work, but is suitable only when the source’s codecs, dimensions, frame rate, timestamps, and audio are compatible with your chosen output container and YouTube ingest.
- Transcoding decodes and re-encodes the media. Use it when the source is incompatible or you need a consistent output format or bitrate. It uses more server resources; the exact workload depends on the media, settings, and machine.
For a straightforward H.264 video with AAC audio, stream copy is a reasonable first configuration to test. If it is rejected or produces an unsuitable feed, try transcoding to H.264 and AAC instead. FFmpeg’s options and stream-selection behavior are documented at ffmpeg.org/ffmpeg.html.
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Prepare a looping input
Loop one video
For a single file, the following illustrative command reads the file in real time, loops it, copies its existing audio and video streams, and sends an FLV stream to the RTMPS destination. It assumes the file contains codecs and streams YouTube will accept through this output path. Replace the example path, URL, and key with your own values; do not publish the key.
ffmpeg -re -stream_loop -1 -i /srv/youtube/video.mp4
-c:v copy -c:a copy -f flv
"${YOUTUBE_RTMPS_URL}/${YOUTUBE_STREAM_KEY}"Set YOUTUBE_RTMPS_URL and YOUTUBE_STREAM_KEY in the private environment of the shell or wrapper that starts FFmpeg. Use the exact RTMPS URL format supplied in Live Control Room; depending on how it is displayed, the URL may already include a path, so do not blindly append another one. The command is a starting point, not a verified recipe for every FFmpeg build or YouTube configuration.
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Loop a playlist
For a playlist using FFmpeg’s concat demuxer, create a text file such as /srv/youtube/playlist.txt with one file entry per line:
file '/srv/youtube/part-01.mp4'
file '/srv/youtube/part-02.mp4'
file '/srv/youtube/part-03.mp4'Then use the playlist as the input:
ffmpeg -re -stream_loop -1 -f concat -safe 0
-i /srv/youtube/playlist.txt
-c:v copy -c:a copy -f flv
"${YOUTUBE_RTMPS_URL}/${YOUTUBE_STREAM_KEY}"This is illustrative, not a tested guarantee that arbitrary files will join cleanly or loop without problems. For stream copy, make playlist files consistent in codec, dimensions, frame rate, and audio layout, and validate the transitions. Paths in a concat list need to resolve on the server; -safe 0 permits paths that the concat demuxer would otherwise reject, so use a playlist you control.
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Transcode to a consistent 1080p30 H.264/AAC output
If your source is not suitable for stream copy, an illustrative software-encoding example is:
ffmpeg -re -stream_loop -1 -i /srv/youtube/video.mp4
-vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2"
-r 30 -c:v libx264 -preset veryfast -b:v 14M -maxrate 14M
-bufsize 28M -g 60 -keyint_min 60 -sc_threshold 0 -pix_fmt yuv420p
-c:a aac -b:a 128k -ar 44100 -f flv
"${YOUTUBE_RTMPS_URL}/${YOUTUBE_STREAM_KEY}"The 14 Mbps video rate corresponds to YouTube’s recommended H.264 bitrate for 1080p30; the two-second keyframe interval here is 60 frames at 30 fps. This example is not a promise of compatibility or performance on your hardware. Check that the machine can encode continuously, that the total bitrate fits the uplink, and that the chosen scaling is appropriate for the source. For 1080p60, use the corresponding YouTube recommendation and a two-second keyframe interval at 60 fps; do not simply reuse the 30 fps values.
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Start the feed and verify it before relying on it
- Start with a representative video that includes both the motion and audio you expect to stream.
- Watch FFmpeg’s output for errors and open the Live Control Room preview. Confirm the picture, sound, frame rate, and stream health are acceptable before leaving the encoder unattended.
- Check the channel’s watch page and, where relevant, playback on a mobile device. A preview alone does not confirm every viewer’s playback experience.
- If you record a local archive, verify that its file size grows during the stream and check that the resulting file is intact.
- Monitor the feed and its audio/video quality during operation. YouTube’s live-streaming tips include preview, accessibility, archive, and ongoing quality checks: YouTube live streaming tips.
YouTube’s general advice for scheduled events is to stop the encoder after the event has stopped on YouTube. A continuous-feed setup is different: the intended ongoing broadcast stays active while its feed continues. If you also use a separate broadcast for an event, ending that event broadcast need not mean ending the 24/7 feed, as described in Google’s broadcast and stream guide.
Keep FFmpeg running on a home server
A terminal command stops when its process exits or the server shuts down. For unattended operation, run FFmpeg under a service manager or another supervisor that starts it on boot and restarts it after a failure. The exact service configuration depends on the operating system and manager; the official FFmpeg and YouTube references do not provide a validated Linux service-unit recipe for this loop-and-restart setup.
- Store the command in a root- or service-account-controlled wrapper, and keep the key in a private environment file or secret store with restrictive permissions. Avoid placing the key in a public repository or an unprotected unit file.
- Configure the supervisor to restart the encoder after an unexpected exit, while preventing a rapid restart loop from hiding a persistent configuration error.
- Send logs somewhere you can inspect them, and check that a restart actually reconnects to YouTube and restores the intended feed.
- Use a stable network connection and account for power, router, ISP, and server interruptions. A home server cannot send video while it or its connection is unavailable.
- If you configure a backup encoder, test failover deliberately by stopping the primary encoder or disconnecting its Ethernet connection, then confirm the player rolls over as intended. YouTube recommends testing configured failover rather than assuming it works.
Troubleshooting common failures
| Symptom | What to check |
|---|---|
| RTMPS connection fails or reports an SSL error | Confirm you copied the RTMPS URL and matching key from Live Control Room, rather than mixing protocols or server names. YouTube’s RTMPS help suggests port 443 if needed: RTMPS troubleshooting. |
| YouTube receives a feed but reports poor stream health | Check that your upload connection can sustain the selected bitrate, reduce output quality if necessary, and compare codec, frame rate, keyframe interval, and bitrate with YouTube’s current encoder settings. |
| FFmpeg exits immediately | Check that the input path exists, the playlist syntax and file paths are valid, the FFmpeg build supports the required input and codecs, and the environment variables used by the wrapper are set. |
| Video or audio is missing, or the output is rejected | Inspect the source streams and test a compatible output configuration. Stream copy does not convert codecs; if the source is unsuitable, transcode to a format and settings supported by YouTube. |
| The loop stops after a file or playlist ends | Confirm -stream_loop -1 is applied before the relevant input option and that the process is still running. Check FFmpeg’s logs for a decoding, demuxing, or output error. |
| The broadcast is not visible to viewers | Distinguish an active incoming stream from a started viewer-facing broadcast. Check the Live Control Room status and the channel’s watch page; a stream feed and a broadcast are separate YouTube resources. |
| The service restarts repeatedly | Read the service logs before changing restart behavior. A bad URL, key, file path, permission, or unsupported stream can cause every new process to fail in the same way. |
Or let it run in the cloud
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