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What “24/7” means for an FFmpeg stream
A continuous live stream is a chain: FFmpeg reads one or more media inputs, optionally filters them, encodes and muxes the output, then sends it to a platform ingest server. “24/7” means keeping that feed going; it does not by itself guarantee uninterrupted delivery or a complete platform archive.
For an animated story, choose between repeating one rendered file and rotating through a playlist. A single file is simpler. A playlist lets you change the story sequence without rendering it as one long video, but requires compatible files and careful transition testing.
Prepare and inspect your story assets
Before starting a long session, make the source files predictable. Check that their dimensions, frame rates, audio layout, and timing suit the output you intend to send. A file with no audio stream needs different handling from one with usable audio; do not assume a silent file can supply the audio track your destination expects.
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Use ffprobe from your installed FFmpeg build to inspect a source:
ffprobe -hide_banner -i story.mp4Review the reported video and audio streams, including resolution, frame rate, codecs, and duration. Then run a short test with the same filters and encoding settings planned for the live output. Watch the moving picture, listen for audio problems, and check how the end joins back to the beginning.
- Use consistent dimensions and frame rates across playlist items where possible.
- Check that animation and any accompanying audio start and end cleanly.
- Confirm the source file can be read by the FFmpeg build on the machine that will run the stream.
- Keep source files and the stream configuration backed up.
Loop one animated video with FFmpeg
For a single video, -stream_loop -1 tells FFmpeg to loop the input indefinitely. This illustrative command assumes a source with usable audio, a 30 fps output target, and a destination that accepts H.264 and AAC in an FLV container over RTMPS:
ffmpeg -re -stream_loop -1 -i story.mp4
-c:v libx264 -preset veryfast -tune stillimage
-pix_fmt yuv420p -r 30 -g 60
-c:a aac -b:a 128k -ar 44100
-f flv 'rtmps://INGEST-URL/STREAM-KEY'Replace the ingest address and stream key with the values provided by your platform. Keep the stream key private: do not publish it in a script, screenshot, public repository, or log that others can read. If it is exposed, replace it in the platform’s live-stream settings.
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What to adapt before using the example
- Input and loop: replace
story.mp4with your file. The command uses real-time input pacing and an infinite loop; test that the loop boundary is acceptable for your animation and audio. - Video codec and pixel format:
libx264encodes H.264 in software, whileyuv420pis a common compatibility choice. The still-image tune may suit animation with little movement, but test it with your content and encoder. - Frame rate and keyframes:
-r 30sets a 30 fps output target and-g 60sets a 60-frame GOP, corresponding to two seconds at 30 fps. Change these together to fit your chosen frame rate and the platform’s keyframe guidance. - Audio: the example encodes AAC at 128 kbps and 44.1 kHz. If the source has no audio, decide whether to add a suitable audio source or use an output configuration accepted by your destination; do not rely on this example unchanged.
- Bitrate: this command leaves bitrate control unspecified. Set bitrate control appropriate to your destination and content, and check that your encoder can sustain the chosen output.
- Ingest and muxing: replace the placeholder with the platform’s correct RTMPS ingest address and key. RTMPS/FLV is not universal; use the protocol and container your destination supports.
FFmpeg’s online documentation is regenerated nightly, so option availability can vary by installed build. Check the documentation or ffmpeg -h output for your version before depending on a particular option. A command that starts successfully is not proof that the destination is receiving a healthy stream.
How to stream a changing story playlist
When stories need to rotate, you can create a concat-demuxer list and loop that playlist, or join inputs with a concat filter. The concat demuxer is suitable for sequential files that meet its compatibility requirements; input streams should have compatible layouts and timing. Validate every transition, including audio, rather than assuming joins will be seamless.
A basic concat-demuxer list is a text file with one file entry per line, for example:
file 'story-01.mp4'
file 'story-02.mp4'
file 'story-03.mp4'Save it as stories.txt, then use it as an input and loop it:
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ffmpeg -re -stream_loop -1 -f concat -safe 0 -i stories.txt
-c:v libx264 -preset veryfast -pix_fmt yuv420p -r 30 -g 60
-c:a aac -b:a 128k -ar 44100
-f flv 'rtmps://INGEST-URL/STREAM-KEY'Use -safe 0 only when you need the paths or filenames allowed by your list and trust the list contents. Relative paths and simple filenames are easier to manage safely. Check concat-demuxer requirements for your installed FFmpeg version and test a short run.
If files need re-encoding to align stream properties or to create controlled transitions, the concat filter can be appropriate. FFmpeg’s FAQ recommends the concat filter when re-encoding is needed. Filter-based joining may use more processing capacity, so test the full sequence at the intended output settings before relying on it continuously.
Set resolution, frame rate, and bitrate for the destination
Choose an output the encoder can sustain and the destination supports. YouTube Help’s current H.264 encoder guidance, accessed in 2026, recommends 6 Mbps for 720p30 and 10 Mbps for 1080p30. These are YouTube recommendations for those specific resolution and frame-rate combinations, not universal requirements for every platform or stream.
| YouTube H.264 output example | Recommended bitrate |
|---|---|
| 720p at 30 fps | 6 Mbps |
| 1080p at 30 fps | 10 Mbps |
YouTube Help recommends roughly 20% upload headroom beyond the stream bitrate. For example, a 10 Mbps stream calls for about 12 Mbps of sustained available upload capacity under that guidance. Measure the connection under realistic conditions; a nominal connection speed does not establish that the upload will remain steady. YouTube also warns that a connectivity disruption could mean a broken stream.
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For YouTube Live, its current RTMP/RTMPS guidance specifies H.264 video, AAC or MP3 audio, constant bitrate (CBR), and a recommended two-second keyframe frequency that should not exceed four seconds. Follow the current settings for the exact ingest mode and destination you use; other platforms may require different values.
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FFmpeg can send a continuous feed, but the process alone is not an availability system. Plan how it will be supervised and how you will know when delivery or recording has failed.
- Run FFmpeg under a service manager or container with a restart policy so a process exit can trigger recovery.
- Alert on FFmpeg exit, ingest loss, and low disk space rather than relying only on periodic visual checks.
- Protect stream keys and limit access to scripts, configuration, and logs containing them.
- Back up source assets and configuration so the stream can be restored after a machine or storage failure.
- If recording locally, monitor available disk space and rotate or remove old recordings intentionally.
- For power continuity, an optional UPS can keep equipment powered during some interruptions; it cannot prevent internet or platform failures.
Check the actual live output
Before leaving a stream unattended, send a short test and check the platform preview and stream-health indicators. Confirm that both moving video and audio are present, the picture is not frozen, and the stream remains stable at the selected settings. If you are recording locally, verify that the recording exists and plays back correctly.
Why a 24/7 YouTube stream may not be archived
A continuous YouTube Live session is not a guarantee of a complete replay. YouTube Help says streams under 12 hours can be automatically archived; streams longer than 12 hours may not be captured at all. This behavior is specific to YouTube and can change, so check its current live-streaming help if archive completeness matters.
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If you need a dependable copy, record locally and monitor the recording and storage. Another option is to plan intentional sessions shorter than 12 hours, while accounting for the work and possible interruption involved in restarting sessions. Neither approach removes the need to verify that the copy was actually saved.
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