To run a prerecorded video on YouTube continuously with Hindi text, configure FFmpeg to loop the source, render Hindi subtitles into the picture, encode to YouTube’s current settings, and publish to the RTMPS URL and stream key shown in YouTube Live Control Room. If you need captions viewers can switch on and off, use YouTube’s documented live-caption workflow instead: adding an SRT input to FFmpeg does not by itself make it a selectable YouTube live caption track.
Choose how Hindi subtitles should appear
First decide whether viewers need visible text burned into the image or a separate caption track. They are different delivery paths, and only the first can be handled directly by rendering a subtitle file into the video frames.
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| Method | What viewers get | What it requires |
|---|---|---|
| Burn subtitles into the picture | Hindi text is always visible and cannot be toggled off separately. | A timed subtitle file, a compatible FFmpeg build, and a working Hindi font/rendering stack. |
| Send live closed captions | A caption track that viewers can turn on or off, if the live caption pipeline is accepted and displayed. | YouTube documents embedded EIA-608/CEA-708 captions and software that sends captions over HTTP POST. Test the track and language in a live preview. |
| Mux a timed subtitle track in another format | Potentially selectable subtitles in a delivery format that supports them. | FFmpeg’s support for SRT/WebVTT or WebVTT in HLS does not establish that YouTube accepts that track as captions over RTMPS. |
For a repeating video where the Hindi text must reliably appear on the image, burned-in subtitles are the practical route. YouTube’s “Live caption requirements” describes its caption paths; FFmpeg’s general documentation lists subtitle formats, but neither fact means that -i hindi.srt sends soft live captions through RTMPS.
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- Save the subtitle file as UTF-8 and use timing that matches the video’s playback position.
- Confirm your FFmpeg build includes the
subtitlesfilter; check locally withffmpeg -versionandffmpeg -filters. The installed build and its libraries determine filter availability. - Use a system font with Devanagari glyphs. Inspect conjuncts, vowel marks, line breaks, contrast, and safe margins in the actual YouTube preview; a UTF-8 file alone does not guarantee correct shaping.
- Run an unlisted or test stream and inspect it as a viewer before using the configuration for a public broadcast.
Get the YouTube ingest details and select encoder settings
- In YouTube Live Control Room, create or select the live stream and open its stream settings.
- Reveal or select the RTMPS endpoint. YouTube may show an ordinary RTMP URL by default; use the RTMPS URL and the stream key presented for your stream.
- Store the key as a credential. Do not paste a real key into a public script, screenshot, log, or shared command history. Revoke or replace it in Live Control Room if it is exposed.
- Choose a codec, resolution, frame rate, and bitrate from YouTube’s current encoder matrix. Its RTMP/RTMPS guidance lists H.264, HEVC, and AV1 video; AAC or MP3 audio; CBR; frame rates up to 60 fps; and a recommended two-second keyframe interval that must not exceed four seconds.
For H.264, YouTube Help lists 5 Mbps minimum and 14 Mbps recommended for 1080p at 30 fps, and 3 Mbps minimum and 8 Mbps recommended for 720p at 30 fps (guidance accessed in 2026). These are not one-size-fits-all values: follow the current matrix for your chosen codec, resolution, and frame rate. YouTube says it will usually detect resolution and frame rate automatically.
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Plan enough sustained upload capacity for the stream. YouTube’s bandwidth guidance recommends primary bitrate plus backup bitrate plus 20% headroom. A connection that barely meets the encoder bitrate may still produce dropped frames or health warnings. Use a reliable connection, check the preview, and monitor stream health throughout the broadcast.
Prepare a looping source and publish with FFmpeg
The following is an illustrative H.264 command for a local video with one video stream, one audio stream, and a timed Hindi SRT file. It is not a tested universal command: input container behavior, subtitle filter support, codec libraries, fonts, FFmpeg version, and stream settings vary. Check the options against your installed build and test before production.
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ffmpeg -re -stream_loop -1 -i "video.mp4"
-vf "subtitles=filename=hindi.srt:charenc=UTF-8"
-map 0:v:0 -map 0:a:0?
-c:v libx264 -preset veryfast
-b:v 14M -minrate 14M -maxrate 14M -bufsize 28M
-g 60 -keyint_min 60 -sc_threshold 0
-x264-params "nal-hrd=cbr:force-cfr=1"
-c:a aac -b:a 128k
-f flv "$YOUTUBE_RTMPS_OUTPUT"Here, YOUTUBE_RTMPS_OUTPUT stands for the complete RTMPS output address assembled from the exact server URL and stream key shown in Live Control Room. Keep it private: environment variables reduce accidental hard-coding in a script, but command arguments may still be visible to local users or process-monitoring tools. Use the secret-handling method appropriate to your host.
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- Source looping:
-stream_loop -1requests infinite looping for the input. FFmpeg input/container behavior can vary; verify that the installed build loops your particular file cleanly and that audio and video remain synchronized at each repeat. If the input does not loop reliably, prepare a known-good continuous source rather than assuming the flag solves every format edge case. - Subtitle filter:
subtitles=filename=hindi.srt:charenc=UTF-8renders the captions into each frame. Filter availability, font selection, path escaping, and Devanagari shaping depend on the build and host. If the filename contains special characters or punctuation, filter escaping may be necessary. - Stream mapping:
-map 0:v:0selects the first video stream and-map 0:a:0?selects the first audio stream if one exists. Explicit mapping prevents an unintended stream from being selected automatically. Remove or change audio mapping if your source arrangement differs. - Bitrate and rate control: the sample’s 14 Mbps video target corresponds to YouTube’s recommended H.264 bitrate for 1080p30; it is not appropriate for every resolution or codec. The matching minimum and maximum rates and buffer are intended to set a constrained rate. Choose the values from YouTube’s current matrix, then check actual health and available upload capacity.
- Keyframes: with a 30 fps source,
-g 60requests a 60-frame GOP, or two seconds. If you use another frame rate, set the GOP to approximately two seconds of frames and do not let the interval exceed four seconds. A source with variable frame timing may need additional testing. - Audio: the sample encodes AAC at 128 kbps. Confirm the source has usable audio and that it remains continuous through the loop. YouTube also lists MP3 as a supported audio option.
- Resolution and frame rate: the command does not resize or force a frame rate. Confirm the source properties and match the output plan to YouTube’s current settings. If you add scaling or frame-rate conversion, test the resulting picture, timing, and bitrate rather than assuming the filter output will be suitable.
To configure FFmpeg for a different codec, replace the H.264 encoder and rate-control options only after confirming encoder availability in your build and support in YouTube’s current matrix. YouTube transcodes incoming live streams for viewing formats, but that does not remove the need for a stable ingest.
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Test, supervise, and plan for long-running operation
- Start with an unlisted or test broadcast and inspect the Live Control Room preview for picture, sound, stream-health warnings, subtitle timing, and Devanagari rendering.
- Watch the stream from a viewer account or device. Confirm that the loop repeats as intended and that any caption track behaves as expected for viewers.
- Run FFmpeg under an operating-system service or process supervisor configured for suitable restart behavior and alerts. A terminal session alone is not a recovery plan for a process expected to run continuously.
- Monitor both the host and YouTube stream health. FFmpeg’s FIFO muxer has an
attempt_recoveryoption for trying to recover output after failures;drop_pkts_on_overflowcan let encoding continue by dropping queued packets, but that can create gaps. Do not enable packet dropping unless gaps are acceptable. - Use input reconnect options such as
reconnect,reconnect_at_eof, orreconnect_on_network_erroronly for an input protocol that supports them. They address some input failures; they do not automatically restart the full YouTube publishing process. - Keep a local recording if a complete copy matters. YouTube’s encoder guidance says streams under 12 hours are automatically archived. The reviewed guidance does not promise a complete archive for a longer continuous session, so plan event length and local recording deliberately.
A continuous FFmpeg process does not by itself settle how YouTube handles the lifecycle of a 24/7 event or its archive. Set up monitoring and decide how you will manage event continuity; the exact best segmentation strategy depends on the channel and is not established by the cited platform guidance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or let it run in the cloud
If you do not want a home computer, FFmpeg process, or home internet connection to be responsible for keeping the channel live, StreamNeo is a cloud service for looping uploaded videos on YouTube. Upload a recording or build a playlist, add your YouTube stream key once, and go live; it runs from the cloud rather than from a camera feed. Each slot includes one always-on stream, 10 GB storage per slot pooled across active slots, playlists and looping, automatic recovery if YouTube drops the stream, and StreamNeo team support. The video streams as uploaded, up to 4K 60fps, with no re-encoding and one price per slot rather than quality tiers. The first day is free with no card, one free day per account; after that, monthly billing is $9.99 per month. UPI and cards are supported in India, and card checkout is available worldwide. The same features are included on every plan; billing length can be a day, a week, a month, six months, or a year, and you can cancel any time. Read more at StreamNeo, then start the free day.
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