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What you need before you start
- A Linux VPS with the media file stored locally and enough disk space.
- Outbound network capacity that can sustain your chosen stream bitrate, plus audio and transport overhead. Ask your VPS provider about sustained outbound capacity, traffic policies, and the server’s region; a nominal port speed does not guarantee sustained throughput or a good route to YouTube.
- FFmpeg built with the encoders and protocols you plan to use. Package capabilities vary, so check your installed build before relying on H.264 encoding or RTMPS support.
- A YouTube Live stream and its RTMPS URL and stream key from Live Control Room.
For an Indian VPS, test the actual route from that server to YouTube’s ingest endpoint. The available documentation does not establish the current capacity, connectivity, or traffic limits of any particular India-region VPS plan.
Prepare FFmpeg and inspect your video
Install and check FFmpeg
Install FFmpeg using trusted packages for your Linux distribution or an appropriate official project build. The ffprobe utility is distributed with FFmpeg and can show the file’s codecs, resolution, frame rate, and audio streams:
ffprobe -hide_banner /srv/media/video.mp4
Confirm the path, video and audio streams, and whether the source already meets YouTube’s ingest requirements. A compatible source may be sent without re-encoding, which can reduce CPU load, but stream copying does not fix a codec, frame rate, keyframe interval, or audio format that fails those requirements.
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Use a stable media path
Put the video somewhere the account that runs FFmpeg can read, such as /srv/media/video.mp4. If FFmpeg cannot open the file, check the path and the service account’s permissions before changing encoding options.
Create the YouTube Live stream and protect its key
- Open YouTube Live Control Room and create or schedule the stream.
- Open its stream settings and copy the RTMPS URL and stream key shown there. YouTube’s help page says the RTMPS URL is available from the lock icon beside Stream URL. Use the current value supplied for your stream rather than copying an endpoint from an old tutorial. See YouTube’s RTMPS instructions and Google’s RTMPS ingestion guide.
- Keep the key secret. Anyone who obtains it may be able to send video to that stream. Do not expose it in a published article, screenshot, source repository, terminal transcript, or shell history. For unattended operation, prefer protected environment injection or a secret manager, and restrict access to process and environment data on the VPS.
YouTube recommends RTMPS, the encrypted extension of RTMP. The URL must use the RTMPS scheme and the endpoint, application path, and port shown for your stream; YouTube’s ingestion documentation identifies port 443. Do not guess or reconstruct the full URL.
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Choose output settings for your stream
YouTube’s current encoder guidance supports H.264, H.265/HEVC, and AV1 over RTMP/RTMPS, up to 60 fps, constant-bitrate encoding, AAC or MP3 audio, and a recommended two-second keyframe interval with a four-second maximum. For a straightforward FFmpeg setup, H.264 video and AAC audio are a conventional option. YouTube recommends 44.1 kHz stereo audio at 128 Kbps. See YouTube’s encoder settings.
Match bitrate to resolution and frame rate
The following are YouTube’s recommended H.264 video bitrates, as listed on its encoder settings page accessed October 3, 2026. They are recommendations, not measurements of what a particular VPS can deliver; audio and transport overhead are additional outbound traffic.
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| Output mode | YouTube-recommended H.264 video bitrate |
|---|---|
| 720p at 30 fps | 8 Mbps |
| 1080p at 30 fps | 14 Mbps |
Choose a bitrate your VPS can maintain reliably, not merely one that matches the server’s advertised peak speed. If the source’s resolution, frame rate, or bitrate differs, select output settings deliberately and preserve its aspect ratio. If resizing is necessary, use an intentional scale-and-pad filter rather than stretching the picture.
Set a two-second keyframe interval
YouTube recommends a two-second interval and sets a four-second maximum. At 30 fps, a GOP of 60 frames gives a two-second interval. If you choose another frame rate, recalculate the GOP length; do not keep 60 frames and assume the interval remains two seconds.
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Run FFmpeg to send the file in real time
Transcode to H.264 and AAC
This is an illustrative starting command for a build that supports libx264 and AAC. It is not a tested command or a guarantee for every input, FFmpeg build, or VPS. Replace the URL with the complete RTMPS URL from Live Control Room, including its stream key, and update the input path and bitrate to suit your source and available uplink.
STREAM_URL='rtmps://<host-from-live-control-room>:443/<application-path>/<stream-key>'
INPUT='/srv/media/video.mp4'
ffmpeg -re -i "$INPUT"
-c:v libx264 -preset veryfast -pix_fmt yuv420p
-r 30 -g 60 -keyint_min 60 -sc_threshold 0
-b:v 14M -maxrate 14M -bufsize 28M
-c:a aac -b:a 128k -ar 44100
-f flv "$STREAM_URL"The example targets 1080p30 H.264 at YouTube’s recommended 14 Mbps video bitrate, with AAC audio at 128 Kbps and 44.1 kHz. Its 60-frame GOP is two seconds at 30 fps. Change the video bitrate, frame rate, and GOP together when using a different output mode. The example does not resize the input: set resolution deliberately if the source does not match the intended output.
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-re reads the input at its native frame rate rather than allowing a file to be sent as fast as disk and CPU permit. Place it before the input it governs. FFmpeg’s manual describes it as equivalent to -readrate 1; see FFmpeg’s command-line documentation. In general, FFmpeg options apply to the next specified input or output, so keep input options before the input and output options after it.
Consider stream copy only after checking compatibility
If inspection confirms that the video and audio already meet YouTube’s codec and stream-parameter requirements, stream copy may avoid re-encoding and use less CPU. A basic form is:
ffmpeg -re -i "$INPUT" -c:v copy -c:a copy -f flv "$STREAM_URL"Copying does not change the source’s codec, frame rate, keyframe interval, pixel format, or audio settings. Confirm those properties first and check the resulting stream’s health in YouTube Live Control Room. Transcode instead if you need to bring the media into compliance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Test the stream and keep it running
- Start with a short test that includes motion and audio. Confirm that YouTube receives the intended picture and sound, resolution, and frame rate.
- Watch Live Control Room’s stream-health indicator and review any error messages while the test is running. YouTube recommends testing before an event and monitoring stream health.
- For unattended use, run FFmpeg under a service supervisor such as systemd or a terminal/session manager, and check its logs, restart behavior, and access to the media file. The right service setup depends on whether the broadcast is scheduled, finite, or intended to repeat; there is no universal service unit for all three cases.
A finite input ends when FFmpeg reaches the end of the file. Repeating a video indefinitely is a separate requirement: verify loop syntax and behavior against the manual for your installed FFmpeg build rather than assuming a loop option works identically everywhere.
Troubleshoot common FFmpeg-to-YouTube problems
| Symptom | Likely cause | What to check or change |
|---|---|---|
| SSL or certificate error | Wrong protocol, server, port, or TLS handling. | Confirm you copied the current RTMPS URL from Live Control Room, that it uses rtmps, and that the endpoint and port are correct. See YouTube’s RTMPS help. |
| Connection timeout | Outbound access is blocked or restricted, or the URL or key is incorrect. | Check outbound connectivity from the VPS to the supplied RTMPS endpoint on port 443, verify the full URL and key, and ask the host about outbound traffic restrictions. |
| File plays or transmits too quickly | -re is missing or does not apply to the file input. |
Put -re before -i for the prerecorded file. |
| Dropped frames or unstable ingest | The VPS cannot sustain the selected bitrate, or its route to YouTube is unstable. | Measure sustained outbound performance on the actual server route. Lower output resolution or bitrate if necessary, then test again. |
| CPU saturation | Software transcoding exceeds the VPS’s available CPU capacity. | If the source already complies, consider stream copy after checking its codecs and parameters. Otherwise reduce resolution or frame rate, choose a less demanding encoding setup, or use a host with adequate CPU. No VPS plan is benchmarked here. |
| No audio or wrong audio stream | The source has no expected audio stream, or automatic stream selection chose a different stream. | Inspect the file with ffprobe. For unusual inputs, explicitly select the first video stream and optional first audio stream with -map 0:v:0 -map 0:a:0?, then confirm the result in YouTube. |
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