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To stream a prerecorded 1080p video from a VPS to YouTube Live, create a YouTube live stream, securely provide its stream key to FFmpeg, and encode at a frame rate and bitrate your server can sustain. For H.264, YouTube recommends 10 Mbps at 1080p30 or 12 Mbps at 1080p60; the example below starts with 1080p30 and sends the video over RTMPS.
Before you start
This example sends a prerecorded file to YouTube Live. It assumes you have a VPS with FFmpeg installed, a video file accessible on that server, and permission to stream the content. A camera, desktop capture, playlist, or network feed needs a different FFmpeg input configuration.
- Check that the VPS has enough sustained outbound bandwidth for the video, audio, and protocol overhead. A provider’s advertised port speed alone does not establish that it can sustain the stream to YouTube’s ingest endpoint.
- Check that its CPU allocation and FFmpeg build can encode the source in real time. Capacity varies by VPS, source complexity, encoder build, and provider limits.
- Use content you have the rights to stream. A successful technical connection does not establish permission to broadcast a recording or eligibility for YouTube monetization.
The example is a configuration template, not a tested VPS benchmark or guarantee of performance.
Choose the 1080p frame rate and bitrate
YouTube Help’s live encoder settings, accessed in 2026, list these H.264 figures. They apply to live ingest, not YouTube’s separate recommendations for uploading ordinary videos.
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| Output | YouTube-listed minimum H.264 video bitrate | YouTube-recommended H.264 video bitrate | GOP for the example |
|---|---|---|---|
| 1080p at 30 fps | 5 Mbps | 10 Mbps | 60 frames (2 seconds) |
| 1080p at 60 fps | 6 Mbps | 12 Mbps | 120 frames (2 seconds) |
For motion that does not require 60 fps, start with 30 fps: it has a lower recommended bitrate and generally places less encoding load on the VPS. Use 60 fps when the source is actually 60 fps and the server and connection can sustain the higher workload. These bitrate figures are YouTube’s operational settings, not a promise that a particular VPS can deliver them reliably.
YouTube recommends constant bitrate (CBR), a two-second keyframe interval, and says not to exceed four seconds. Its listed ingest protocols are RTMP and RTMPS; it recommends RTMPS, which encrypts data into and through Google’s servers. YouTube lists H.264, H.265/HEVC, and AV1, but this example uses H.264 for its FFmpeg encoder configuration. YouTube also lists AAC or MP3 audio, 44.1 kHz for stereo, and 128 kbps for stereo audio. For SDR, it recommends Rec. 709 and 8-bit color.
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Create a YouTube stream and protect its key
- Open YouTube Live Control Room and create a live stream.
- Copy the stream URL and stream key shown for the stream. Treat the key like a password: do not put a real key in a public script, screenshot, article, shell history, or log.
- Make the key available to FFmpeg through a protected environment variable or a service manager’s protected environment. For a temporary shell session, set it without putting the secret directly in the command you save or share:
read -s YOUTUBE_STREAM_KEY export YOUTUBE_STREAM_KEYPaste the key when prompted, then press Enter. Protect access to the shell and process environment on the VPS. For a persistent service, use a protected configuration or secret store rather than committing the key to source control.
PerformancePC Slower Than It Used to Be?DriversOutdated Drivers Are Slowing You DownPerformanceWindows Errors? Fix Them Before They SpreadSpecial offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy. - If you believe the key has been exposed, reset it in YouTube Live Control Room and update the protected value used by FFmpeg.
The command below uses YouTube’s standard RTMPS ingest address with the key appended. If Live Control Room provides a different server URL for your stream, use that URL while keeping the key secret.
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Run FFmpeg for a 1080p30 H.264 stream
Replace /path/to/input.mp4 with the file on your VPS. The command scales and pads the picture to a 1920×1080 canvas while preserving its aspect ratio, sets 30 fps, encodes H.264 at YouTube’s recommended 1080p30 video bitrate, and encodes stereo audio as AAC when an audio stream is present.
ffmpeg -re -i /path/to/input.mp4
-map 0:v:0 -map 0:a:0?
-vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=1,fps=30"
-c:v libx264 -preset veryfast -pix_fmt yuv420p
-b:v 10M -maxrate 10M -bufsize 20M -g 60 -keyint_min 60 -sc_threshold 0
-c:a aac -b:a 128k -ar 44100
-f flv "rtmps://a.rtmp.youtube.com/live2/${YOUTUBE_STREAM_KEY}"What to adapt in the command
-rereads a prerecorded file at its native rate rather than sending it as fast as the server can process it. It is not a universal option for live capture inputs.-map 0:v:0selects the first video stream.-map 0:a:0?selects the first audio stream if present; the question mark makes that map optional. If the file is silent, decide whether that output is appropriate for your stream. Multiple audio tracks, subtitles, or generated video need deliberate input mapping and filter changes.- The scale-and-pad filter makes a 1920×1080 output without stretching a differently shaped source; it adds bars as needed. Remove or adapt it if your source is already framed as intended.
-b:v 10Msets the target video bitrate.-maxrate 10Mlimits peaks near that target, and-bufsize 20Mis a two-second video buffer at 10 Mbps. These buffer and preset choices are practical starting points, not YouTube requirements.-g 60sets a 60-frame GOP at 30 fps, which is two seconds.-keyint_min 60and-sc_threshold 0keep keyframe spacing predictable for this example.-preset veryfastis a starting point for software encoding, not a guarantee that a VPS can encode in real time. Watch CPU use and FFmpeg’s speed output before trying a slower preset or an available hardware encoder.
Adapt it for 1080p60
If the source and VPS can sustain 60 fps, change the filter’s fps=30 to fps=60, set both -b:v and -maxrate to 12M, and change -g and -keyint_min to 120. YouTube’s recommended H.264 live-ingest bitrate for 1080p60 is 12 Mbps. Do not assume an arbitrary VPS can encode this workload; verify speed and stream health under representative conditions.
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Confirm FFmpeg has the required support
FFmpeg options depend on the version and build installed on the VPS. The example requires the libx264 encoder, AAC encoding, FLV muxing, and RTMPS support. Check the local build before troubleshooting the command:
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ffmpeg -encoders
ffmpeg -muxers
ffmpeg -protocolsLook for libx264 in the encoders, FLV in the muxers, and RTMPS support in the protocols. If a required component is absent, use an FFmpeg build that includes it or adapt the command to a codec and protocol your build supports and YouTube accepts.
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Test the stream and monitor it
- Start FFmpeg and check its output for connection errors, encoding speed, dropped frames, and the actual output rate.
- Confirm the sent resolution and frame rate are 1920×1080 and 30 fps (or the 60 fps settings you chose), and that the video bitrate is near the target.
- Check YouTube’s stream health and verify that picture and audio are arriving as expected before relying on the stream.
- Test with representative motion and audio. YouTube Help says: “Make sure to test before you start your live stream. Tests should include audio and movement in the video similar to what you’ll be doing in the stream.”
- Check sustained outbound capacity to the ingest endpoint, not just a short speed-test result. The stream’s total bitrate includes audio and protocol overhead as well as video, so leave bandwidth headroom.
Troubleshoot common failures
| Symptom | Likely checks and fixes |
|---|---|
| YouTube does not receive the stream | Verify the stream URL and key, confirm the stream is active in Live Control Room, and inspect FFmpeg’s connection output. If the key may be wrong or exposed, reset it and update the protected value. |
| FFmpeg reports an unknown encoder, muxer, or protocol | Inspect ffmpeg -encoders, ffmpeg -muxers, and ffmpeg -protocols. The installed build may lack libx264, AAC, FLV, or RTMPS support; use a compatible build or adjust to supported options. |
| FFmpeg runs slower than real time or drops frames | Check VPS CPU use, source complexity, and provider throttling. Try a faster encoding preset or reduce the workload, then repeat the test. A 60 fps stream increases encoding and bandwidth demands relative to the 30 fps example. |
| Stream health reports instability or frames arrive late | Check sustained VPS egress to YouTube and allow headroom for audio and overhead. Confirm that the server can maintain the selected bitrate; reduce frame rate or bitrate if it cannot, then test again. |
| Output is not 1080p or the image looks distorted | Check the input mapping and filter chain. The example’s scale-and-pad filter preserves aspect ratio on a 1920×1080 canvas; adjust it if the source is already correctly framed or has special dimensions. |
| No audio is heard | Check whether the input contains an audio stream and whether -map 0:a:0? selects the intended track. The optional map prevents failure for a silent file; it does not create audio. |
Or let it run in the cloud
If your goal is to keep a YouTube channel live from uploaded videos, StreamNeo is an alternative to operating FFmpeg on a VPS: it runs the stream in the cloud, so nothing has to stay on at home. Upload a recording or build a playlist, add your YouTube stream key once, and go live. It plays uploaded videos, not a live camera feed.
- One flat price per slot for any quality up to 4K 60fps as uploaded, with no re-encode or quality tiers.
- Automatic recovery if YouTube drops the stream.
- The first day is free with no card; one free day per account.
Monthly service is $9.99 per month. Visit StreamNeo or start the free day.
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