You can loop a playlist of local video files into a YouTube Live stream with FFmpeg on Windows by preparing compatible media, creating an encoder stream in YouTube Studio, and sending FFmpeg’s output to YouTube’s RTMPS server. The command below is a starting point, not a tested universal preset: first run a private or unlisted test, confirm stream health, and plan how you will monitor and recover the Windows PC and network.
Before you start
- A YouTube channel that is verified and eligible for live streaming. YouTube says first-time live streaming may take up to 24 hours to become available. Check YouTube’s live-streaming eligibility and setup guidance.
- A Windows PC that can read the playlist files and encode the stream continuously, plus a stable wired or otherwise reliable internet connection with enough sustained upload capacity.
- An FFmpeg build that includes the required input demuxer, chosen video encoder, FLV muxer and RTMPS support. The appropriate Windows build depends on the source; this guide does not endorse a third-party build provider.
- Videos you have the right to stream, and enough local storage and power for an uninterrupted run.
Do not share your YouTube stream key: it is a credential that lets an encoder send a feed to your channel. If it is exposed, reset it in YouTube Studio.
Set up the YouTube encoder stream
- Open YouTube Studio and go to Live Control Room. Create or schedule a live stream and choose the encoder workflow.
- Copy the stream URL and stream key shown for that stream. Use the exact server URL and key arrangement YouTube provides; do not assume every stream uses the same destination string.
- Choose RTMPS when available. YouTube recommends RTMPS, which encrypts the connection. See YouTube’s RTMPS guidance.
- Keep the stream private or unlisted for the initial test so you can inspect the preview, audio, video, stream health and viewer page before a public launch.
Prepare the video playlist
Create a concat list
FFmpeg’s concat demuxer reads a text file in playback order. Create a UTF-8 text file such as C:/streams/playlist.txt with one file entry per line:
file 'C:/streams/video-01.mp4'
file 'C:/streams/video-02.mp4'Use paths appropriate to your PC. The example uses forward slashes, which FFmpeg accepts in Windows paths. Filenames containing apostrophes or unusual characters need proper escaping; test the list before relying on it for a long broadcast.
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Check media compatibility
For concat-demuxer stream copying, the files need matching streams, codecs and time bases. Even compatible files can have imperfect transitions if timestamps, duration information, frame rates or audio formats differ. Test the boundaries between clips, not just the first few seconds of the first file. FFmpeg documents the concat demuxer and its constraints in its reference documentation.
If files are incompatible, preprocess them to consistent parameters or use a concat-filter workflow and re-encode. The filter offers more control but requires encoding resources; see the FFmpeg FAQ for the distinction. Do not use -c copy until you have established that the files are compatible with one another and that their existing codecs and parameters are suitable for YouTube.
Choose bitrate, resolution and keyframes
YouTube’s current encoder guidance, accessed October 3, 2026, recommends H.264, constant bitrate, AAC or MP3 audio, and a two-second keyframe interval (no more than four seconds). Its recommended H.264 bitrate ranges include:
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| Output | YouTube-recommended video bitrate |
|---|---|
| 720p30 | 3–8 Mbps |
| 720p60 | 3–8 Mbps |
| 1080p30 | 5–14 Mbps |
| 1080p60 | 6–17 Mbps |
These are YouTube input recommendations, not a guarantee of the quality viewers will receive. Match the output to your source and available sustained upload. YouTube recommends 20% upload headroom; judge capacity by the streaming PC’s sustained outbound speed, not its advertised download speed. If you configure a backup encoder, YouTube’s streaming tips say to allow for the primary bitrate plus backup bitrate plus 20% where both are in use. Read YouTube’s encoder settings and streaming tips.
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For 30 fps, a GOP of 60 frames corresponds to a two-second interval only if the encoder actually outputs 30 frames per second. If you change frame rate, adjust the GOP accordingly. A higher bitrate also increases upload demand and encoding load; it does not fix an unstable connection.
Start the looping FFmpeg stream
For a compatible H.264/AAC playlist, this command is an illustrative starting pattern for Windows Command Prompt:
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ffmpeg -re -stream_loop -1 -f concat -safe 0 -i playlist.txt -c:v libx264 -preset veryfast -b:v 4500k -maxrate 4500k -bufsize 9000k -g 60 -c:a aac -b:a 128k -ar 44100 -f flv "rtmps://SERVER/APP/STREAM_KEY"Replace playlist.txt with the path to your list and replace the quoted destination with the exact RTMPS server URL and stream-key arrangement shown in Live Control Room. The server string above is deliberately illustrative, not a working YouTube address.
-rereads the input at its native rate rather than sending it as fast as possible.-stream_loop -1repeats the input indefinitely.-f concat -safe 0 -i playlist.txtreads the concat list;-safe 0allows the absolute paths in this example, so only use a playlist you trust.-c:v libx264encodes video as H.264;-preset veryfasttrades some compression efficiency for lower processing demand.-b:vand-maxrateset the example video bitrate and cap;-bufsizecontrols the rate-control buffer.-g 60sets the example GOP length. At an actual output of 30 fps, that is a two-second keyframe interval.-c:a aac -b:a 128k -ar 44100encodes AAC audio at the example bitrate and sample rate.-f flvselects the output container used by this RTMP-family workflow.
This command has not been tested as an end-to-end Windows recipe. Check that your FFmpeg build supports every selected component, especially libx264, RTMPS and FLV. Tune resolution, frame rate, bitrate, audio and GOP to the YouTube stream settings, your source, and your upload capacity. The example does not explicitly scale video or set a frame rate; add those choices only after confirming the source and intended output.
Test before making the stream public
- Run FFmpeg against a private or unlisted YouTube encoder stream.
- In Live Control Room, inspect the preview and stream-health indicators. Confirm that video motion and audio are correct and that the intended viewer page is accessible.
- Watch at least one playlist boundary for a gap, timestamp jump, frozen frame or audio discontinuity.
- Check that the FFmpeg process remains active and that any local recording or archive you rely on is actually growing.
- Only switch to a public continuous run after these checks pass.
Keep a 24/7 run reliable
A looping command is not, by itself, a 24/7 operations plan. YouTube warns that connectivity disruption can break a stream. Keep the PC, router and network path stable, monitor FFmpeg and YouTube stream health, and plan how to restart or recover after a process, power or network failure. A UPS can help bridge brief power interruptions to a PC and router, but it cannot provide internet service or guarantee an uninterrupted stream.
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- Make sure the PC will not sleep, hibernate or restart unexpectedly, and that it has adequate cooling and storage.
- Monitor sustained upload rather than relying on a one-time headline speed. Leave the recommended upload headroom.
- Have a restart or supervision strategy for an FFmpeg exit and a way to notice when the stream stops. Test recovery rather than assuming a single process will restart itself.
- Protect the stream key and verify that playlist files remain available at their expected paths.
- Decide how you will handle archives. YouTube says streams under 12 hours are automatically archived; do not assume a longer broadcast will be preserved as one complete archive. For a complete replay, use shorter sessions or a separately verified recording workflow. See YouTube’s encoder-stream instructions.
Copyright, reused content and live-stream eligibility
Looping a video does not grant permission to rebroadcast it. Use content you own or are licensed to stream, including music, visuals and any third-party material in the files. YouTube’s live-streaming eligibility requirements and its copyright or monetization decisions can affect whether a stream can run or earn revenue; check the current rules for your channel and content before launching. Repeatedly replaying existing material is not a substitute for rights or compliance with YouTube’s policies.
Common problems and fixes
| Symptom | Likely cause | What to check |
|---|---|---|
| YouTube does not show the stream | Live streaming is not enabled yet, or the URL/key is wrong. | Confirm channel eligibility and activation, then recopy the exact stream URL and key from Live Control Room. |
| FFmpeg reports an encoder, muxer or protocol error | The installed build lacks a selected component or has different build options. | Check the build’s available encoders, demuxers, muxers and protocols; choose a supported encoder or install a trusted build with the needed support. |
| Concat input fails or clips play badly at boundaries | Playlist syntax, paths, timestamps or media parameters do not match. | Check the UTF-8 list, quoting and file paths; compare streams, codecs and time bases. Preprocess mismatched clips or use a filter and re-encode. |
| Stream health is poor or the feed disconnects | Insufficient sustained upload, network disruption or an overloaded PC. | Lower output demand, preserve upload headroom, check the PC’s encoding load and stabilize the network. YouTube notes that connectivity disruptions can break a stream. |
| Audio is missing or inconsistent | Source audio differs across clips, is absent, or is not encoded as expected. | Inspect audio in the preview and normalize/preprocess playlist audio; verify the selected audio encoder and output settings. |
| The stream stops after a restart or power loss | FFmpeg is a foreground process without a recovery mechanism, or the PC/network lost power. | Use a tested restart or supervision plan, monitor availability, and address the specific power or network failure rather than relying on the loop option. |
Or let it run in the cloud
If you do not want a Windows PC and home connection to stay on, StreamNeo is a cloud service for keeping a YouTube channel live from uploaded videos. Upload a recording or build a playlist, add your YouTube stream key once, and go live. It loops the uploaded videos from the cloud; it does not stream from a camera or send to platforms other than YouTube.
- Nothing has to stay on at home.
- Videos stream as uploaded, up to 4K 60fps, at one flat price per slot rather than quality tiers.
- It automatically recovers if YouTube drops the stream.
- The first day is free with no card required (one free day per account).
Monthly service: $9.99 per month. See StreamNeo for service details, or start the free first day.
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