You can loop a prerecorded video to YouTube Live with FFmpeg on Linux by reading the file in real time, encoding it to a YouTube-compatible format, and sending it to the ingest URL with your stream key. The basic loop is -re -stream_loop -1. Keeping that feed live around the clock also requires a dependable host and connection, process monitoring, and a plan for recovery; the FFmpeg command alone does not guarantee uninterrupted uptime or monetization eligibility.
What you need before you start
- A Linux host that can stay on, run FFmpeg continuously, and sustain the required upload rate. It can be a computer you manage or a server; there is no universal hardware specification for every source video and encoding configuration.
- A prerecorded video file accessible to the account running FFmpeg.
- A YouTube channel able to create an encoder stream in YouTube Studio.
- The stream URL and stream key from YouTube Studio’s Live Control Room.
- An FFmpeg build with the required input, video encoder, audio encoder, and output protocol support. Linux distributions package FFmpeg differently, so verify what your installed build supports rather than assuming it includes a particular encoder.
This setup sends video from a file; it is not a camera broadcast. If FFmpeg re-encodes the source, the host needs enough CPU for that work as well as enough network capacity for the outgoing stream.
Create the YouTube Live stream and protect its key
- In YouTube Studio, open Go Live. Create an encoder stream or schedule one from the Manage tab. Scheduling can let viewers see an upcoming stream and opt into reminders.
- Open the stream’s Stream settings in Live Control Room. Copy the stream URL and select or copy the stream key associated with that stream.
- Use the exact endpoint and key YouTube displays. Prefer the RTMPS endpoint if your FFmpeg build supports it; RTMPS encrypts the encoder-to-YouTube connection.
- Treat the key as a password. Do not publish it in shell history, scripts, logs, screenshots, or process listings. Restrict access to any configuration file that holds it. If it is exposed, reset it in Live Control Room.
YouTube describes stream keys as “your YouTube stream’s password and address.” Keep the key private even on a server you administer, and be especially cautious on shared hosts.
Check FFmpeg and prepare the source
Confirm FFmpeg is installed and inspect the encoders available in your build before choosing a command. For example, ffmpeg -version identifies the build, while ffmpeg -encoders lists its encoders. The command below uses libx264 for H.264 video and AAC for audio; it will not work as written if the build lacks those encoders.
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Check the input’s resolution, frame rate, and audio tracks. The example targets 1080p at 30 frames per second, so it is a reasonable starting point only when your source and encoding capacity suit that target. It does not include a scaling filter: if the source is a different size, decide whether to keep its dimensions or explicitly scale it. Avoid upscaling solely to claim a higher resolution.
Loop one video to YouTube with FFmpeg
Replace the file path, ingest endpoint, and key placeholder below with your own values. Do not paste a real key into a public tutorial or shared shell session.
ffmpeg -re -stream_loop -1 -i "/path/to/video.mp4"
-map 0:v:0 -map 0:a:0?
-c:v libx264 -preset veryfast -pix_fmt yuv420p
-r 30 -g 60 -b:v 14M -maxrate 14M -bufsize 28M
-c:a aac -b:a 128k -ar 44100
-f flv "rtmps://INGEST_HOST/APP/STREAM_KEY"-re paces file input at its normal real-time rate instead of sending it as quickly as the machine can read it. -stream_loop -1 tells FFmpeg to repeat that input indefinitely. Both are input options, so they appear before -i. The optional ? in -map 0:a:0? means FFmpeg will not fail just because the file has no first audio stream; check the resulting preview and audio if your source is silent or has multiple tracks.
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The output options re-encode video as H.264 and audio as AAC, package them in FLV format, and send them to the supplied RTMPS address. The example’s 14 Mbps video bitrate corresponds to YouTube’s published H.264 recommendation for 1080p at 30 fps, not a guarantee of quality or a setting for every source. YouTube’s current encoder guidance, accessed October 3, 2026, lists 5 Mbps minimum and 14 Mbps recommended for H.264 at 1080p30. It recommends a two-second keyframe interval and advises not to exceed four seconds; with -r 30, -g 60 sets a 60-frame GOP, or two seconds. Use the current YouTube table for your chosen codec, resolution, and frame rate, and leave upload headroom above the stream bitrate.
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| Output | Minimum video bitrate | Recommended video bitrate |
|---|---|---|
| 720p at 30 fps | 3 Mbps | 8 Mbps |
| 1080p at 30 fps | 5 Mbps | 14 Mbps |
| 1080p at 60 fps | 6 Mbps | 17 Mbps |
| 1440p at 30 fps | 7 Mbps | 21 Mbps |
| 2160p (4K) at 30 fps | 11 Mbps | 42 Mbps |
YouTube’s table varies by codec and frame rate; these rows are H.264 guidance and are not a substitute for checking the current table for your exact output. YouTube lists H.264, H.265/HEVC, and AV1 as RTMP/RTMPS video codec options, frame rates up to 60 fps, AAC or MP3 audio, and constant-bitrate encoding. Match the settings to your encoder build and the stream’s actual configuration rather than copying a bitrate from a different row.
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Start the feed, inspect it, and begin the broadcast
- Start FFmpeg and check its output for input, encoder, or connection errors.
- In Live Control Room, wait for the incoming preview. Check both picture and sound, then inspect stream health.
- When the preview is right, start or confirm the broadcast in Live Control Room as appropriate for the stream settings. YouTube provides auto-start and auto-stop controls in stream settings; the exact interface behavior can change.
- Monitor the stream after it begins, including the host’s CPU, network, available disk space, and FFmpeg process. YouTube advises testing before going live and monitoring audio and video quality.
Test the entire path before promoting the stream. An FFmpeg process that has started is not proof that YouTube is receiving a healthy picture and audio feed.
Run it continuously and recover from interruptions
A 24/7 feed depends on more than the loop option. The host must remain powered and reachable, FFmpeg must continue running, the source file must remain readable, and the upstream connection must sustain the selected bitrate. If you transcode, CPU capacity matters; long-running logs and disk use also need attention.
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- Supervise the process. Use a service manager or another process supervisor to detect an exited encoder and attempt a restart. Test the restart behavior rather than assuming it works.
- Keep logs and alerts useful. Log enough to diagnose disconnects or encoder errors, but do not write the stream key into logs or expose it through scripts or screenshots.
- Plan for the failure you have. FFmpeg’s FIFO muxer documents recovery options for retrying an RTMP output after a temporary network failure. That can help with a transient output interruption; it does not fix a failed host, unreadable source file, invalid key, disabled stream, or YouTube-side interruption.
- Test the connection under sustained load. A brief speed test is not proof that the host can sustain the selected upload rate continuously. Allow headroom and check for provider limits if you use a VPS or dedicated server.
A Linux computer you already manage and a rented server are both possible operating choices, but neither has a universally correct specification. Compare sustained upload capacity, encoding headroom, storage, restart controls, uptime expectations, administration work, and provider terms for your own stream.
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Use a playlist instead of a single file
A single file is the simplest case: -stream_loop -1 repeats it. A playlist needs more preparation. FFmpeg’s concat demuxer expects input files to have compatible stream layouts and timing properties; clips with different codecs, frame rates, resolutions, audio layouts, or time bases can produce failures or poor transitions.
Before relying on a multi-file sequence, normalize the clips to consistent video and audio properties, test the transitions, and run the complete playlist long enough to catch issues at the end and on repeat. Community discussion on the FFmpeg user mailing list in September 2024 describes problems with mixed-format concatenation and recommends normalization; treat that as practical guidance, not a guarantee that every playlist will concatenate cleanly.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Know YouTube’s long-stream and content limits
YouTube says streams under 12 hours are automatically archived. Do not assume an arbitrarily long 24/7 broadcast will become one complete archive. For streams longer than 12 hours, DVR may be limited or unavailable, and viewers cannot seek to a point before the live stream began.
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A technical ability to loop prerecorded footage does not establish that a channel or its content qualifies for monetization, or that it complies with every YouTube policy. Check current YouTube content and monetization policies for the actual footage, music, rights, and channel. Repeatedly broadcasting material you do not have permission to use creates copyright risk; a working stream key does not grant content rights.
Troubleshooting common FFmpeg-to-YouTube problems
| Symptom | Likely cause | What to check |
|---|---|---|
| FFmpeg says an encoder is unavailable | The installed build does not include the selected encoder. | Check ffmpeg -encoders. Install or build a version with the required encoder, or choose one your build supports and confirm YouTube accepts it. |
| No incoming preview or a connection error | Wrong ingest URL or key, an unsupported endpoint, a network problem, or a stream not ready to receive the feed. | Copy the current URL and key from Live Control Room, use RTMPS when supported, confirm outbound connectivity, and check the FFmpeg error output. |
| YouTube reports poor stream health | Bitrate, codec, frame rate, or keyframe interval may not match the current ingest guidance; the network may lack headroom. | Compare the actual output settings with YouTube’s current table for the codec and frame rate, and test sustained upload capacity. |
| Video works but audio is missing | The source may lack an audio track, the wrong track may be mapped, or the audio encoder/output may be incompatible. | Inspect the source streams, verify the audio mapping and encoder, and listen to the Live Control Room preview before broadcasting. |
| The feed stops after a disconnect | FFmpeg exited or its output could not recover from the network interruption. | Inspect logs and host/network health. Test a supervisor restart or FFmpeg’s documented FIFO recovery options for transient RTMP failures; neither handles every failure type. |
| A playlist fails or has rough transitions | Inputs may differ in stream layout, timing, resolution, frame rate, or audio properties. | Normalize the clips to consistent properties and test the whole sequence, including its transition back to the first item. |
Or let it run in the cloud
If the goal is a YouTube channel that stays live without leaving a Linux machine running, StreamNeo is a cloud alternative: upload a recording or build a playlist, add your YouTube stream key once, and go live. It plays uploaded videos rather than broadcasting from a camera, and it streams to YouTube.
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Billing options are a day, a week, a month, six months, or a year; cancel any time. UPI and cards are accepted in India, and card checkout is available worldwide. Contact support for five or more slots. Monthly pricing is $9.99 per month. Start the free first day with StreamNeo.
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