To stream a prerecorded 1080p video from a VPS to YouTube Live, run FFmpeg on the server, encode to a frame rate and bitrate YouTube accepts, and send the output to YouTube’s RTMPS ingest address using a protected stream key. For H.264, YouTube recommends 10 Mbps at 1080p30 or 12 Mbps at 1080p60; the VPS must also encode in real time and sustain enough outbound bandwidth.
What this setup does—and what it assumes
A VPS is the remote machine that runs FFmpeg. The example below takes a video file already stored on that server, encodes it as H.264 at 1080p30, and sends it to YouTube Live. It is a configuration template, not a tested VPS performance guarantee.
A camera, desktop capture, network feed, playlist, or generated video needs a different input setup. The command’s file input and video/audio mapping are not universal for those sources. VPS providers differ in CPU allocation, outbound traffic limits, and throttling, so verify that your chosen instance can sustain the job rather than assuming its advertised port speed is guaranteed egress.
Choose the YouTube ingest settings
YouTube’s live-encoder recommendations are distinct from its recommendations for uploading an ordinary video. For an H.264 live stream, use the frame rate that matches the material and capacity you can sustain:
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| Output | YouTube-recommended H.264 video bitrate | YouTube-listed minimum H.264 video bitrate | GOP at the recommended 2-second keyframe interval |
|---|---|---|---|
| 1080p at 30 fps | 10 Mbps | 5 Mbps | 60 frames |
| 1080p at 60 fps | 12 Mbps | 6 Mbps | 120 frames |
The bitrate figures are YouTube’s live-ingest settings, current on its settings page when accessed in 2026; they are not independent performance measurements. YouTube recommends constant bitrate (CBR), a 2-second keyframe interval, and says not to exceed 4 seconds. The table’s GOP values follow from the 2-second interval at each listed frame rate.
Frame rate and encoding load
Use 30 fps for a 30 fps source unless there is a reason to preserve 60 fps motion. A 60 fps output requires twice as many frames per second to process and, for H.264, YouTube’s recommended video bitrate is higher. Neither setting proves a particular VPS can encode the material in real time; confirm it under load.
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Codec, audio, and color
YouTube lists H.264, H.265 (HEVC), and AV1 for ingest, up to 60 fps, AAC or MP3 audio, and 44.1 kHz for stereo. Its listed stereo audio bitrate is 128 kbps. The command below uses H.264 and AAC for a straightforward baseline. YouTube recommends Rec. 709 and 8-bit color for SDR. AV1 or H.265 may be options only if the installed FFmpeg build and the rest of your workflow support them.
RTMPS and stream key
YouTube lists RTMP and RTMPS and recommends RTMPS; it encrypts data into and through Google’s servers. Treat the stream key as a password. Do not put a real key in published code, a screenshot, source control, or a log. If it is exposed, reset it in YouTube Live Control Room.
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Create a YouTube stream and prepare the VPS
- Create the live stream: In YouTube Live Control Room, create or select a live stream and obtain its stream URL and stream key. The RTMPS address used by the example is YouTube’s
rtmps://a.rtmp.youtube.com/live2/ingest endpoint; append the key as shown. - Place the input file on the VPS: Confirm its path and that the account running FFmpeg can read it. The example expects
/path/to/input.mp4; replace that placeholder. - Check FFmpeg capabilities: On the VPS, run
ffmpeg -encoders,ffmpeg -muxers, andffmpeg -protocols. Confirm the build includeslibx264, AAC encoding, FLV muxing, and RTMPS support. Available options depend on the installed build and version. - Provide the key securely: Set
YOUTUBE_STREAM_KEYthrough a protected service-manager environment or secret store in production. Avoid entering a real key directly in a command that may be saved in shell history. The variable reference in the command is illustrative; a deployment must actually provide the variable to the FFmpeg process.
Run an illustrative 1080p30 FFmpeg command
This template reads a prerecorded file at its native rate, scales and pads it to a 1920×1080 canvas, encodes H.264 at YouTube’s recommended 1080p30 live bitrate, and sends it to the RTMPS endpoint. Replace the input path and supply the key securely before running it.
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 the important options do
-repaces a prerecorded file at its native rate. 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 mapping optional. A silent file may therefore produce no audio, so choose and test the intended audio behavior rather than assuming sound will be present.- The scale-and-pad filter fits the picture inside 1920×1080 without changing its aspect ratio, then adds bars where needed.
setsar=1sets a square-pixel sample aspect ratio, andfps=30sets the output rate. Remove or adapt the filter if the source is already correctly framed or if your source-specific workflow needs different handling. -b:v 10Msets the target video bitrate;-maxrate 10Mlimits peaks near that target.-bufsize 20Mrepresents a two-second video buffer at 10 Mbps. These are practical starting settings, not separate YouTube requirements; confirm their behavior with the encoder build in use.-g 60 -keyint_min 60 -sc_threshold 0sets a 60-frame GOP at 30 fps—two seconds—and avoids shorter scene-change keyframe intervals in this template.-preset veryfastis a starting point for software encoding, not a guarantee about quality or capacity. Observe CPU use and whether encoding keeps pace before considering a slower preset or available hardware encoding.-c:a aac -b:a 128k -ar 44100encodes audio as AAC at 128 kbps and 44.1 kHz. The example is for stereo audio; adapt channel handling when the source differs.-f flvselects the container used for this RTMP-family output. Confirm FLV muxing and RTMPS protocol support in the installed build.
Adapt the command for 1080p60
If the source and VPS can sustain 60 fps, change the frame-rate filter to fps=60, set -b:v 12M -maxrate 12M, and change the GOP options to -g 120 -keyint_min 120. The resulting 120-frame GOP is two seconds at 60 fps. Do not select 60 fps solely because the output is 1080p: it requires more encoding work and upload capacity, and a 30 fps source does not gain real motion detail from being relabeled at 60 fps.
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Test before relying on the stream
- Start with the intended file, audio, frame rate, and filters so the test resembles the eventual stream.
- Watch FFmpeg’s output for connection errors and encoding speed. The encoder needs to keep pace with real time; sustained lag or dropped frames indicates the current settings or VPS capacity are not working reliably.
- Check YouTube’s stream health and messages in Live Control Room, and verify the received resolution, frame rate, and bitrate.
- Verify sustained outbound capacity to the ingest endpoint, not just the VPS plan’s advertised port speed. Total stream bitrate includes audio and protocol overhead in addition to video, so leave headroom.
YouTube Help’s “Choose live encoder settings, bitrates, and resolutions” 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.”
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Troubleshoot common failures
| Symptom | Likely cause | What to check or change |
|---|---|---|
| YouTube does not receive a stream | Wrong stream key or server URL, unavailable RTMPS support, or a connection problem | Confirm the key and endpoint in Live Control Room, check that the FFmpeg build supports RTMPS, and inspect FFmpeg’s connection error output. Reset an exposed or compromised key in Live Control Room. |
| FFmpeg reports an unknown encoder, muxer, or protocol | The installed build lacks the requested component | Inspect ffmpeg -encoders, ffmpeg -muxers, and ffmpeg -protocols; use a build that includes the needed support or select a supported configuration. |
| Encoding falls behind or frames drop | The VPS cannot encode the selected resolution, frame rate, or preset in real time, or capacity is constrained | Check encoder speed and CPU use. Retest with 30 rather than 60 fps, or reduce bitrate while staying within the appropriate YouTube settings. If you lower resolution, label the output accurately rather than calling it 1080p. |
| Stream health warns about bitrate or interruptions | Insufficient or inconsistent sustained outbound capacity, including overhead | Measure sustained egress to the ingest endpoint and retain headroom for audio and protocol traffic. Do not treat a nominal VPS port speed as proof of sustained capacity. |
| Picture is stretched, cropped, or has unexpected bars | The source aspect ratio does not match the 16:9 output canvas, or the scale/pad filter is inappropriate | Check the input dimensions and aspect ratio. The provided filter preserves the image shape and adds bars to fit; modify it if intentional cropping or a different canvas is required. |
| The stream has no audio | The source has no audio stream, or the selected mapping is not the intended track | Inspect the file’s streams, adjust audio mapping for its track layout, and test with representative audio. The optional audio map prevents a missing stream from causing an input-map failure; it does not create audio. |
Protect the stream and the content
The stream key grants access to your YouTube ingest, so restrict access to the process and its configuration, avoid exposing it in logs, and rotate it if compromised. For prerecorded material, confirm you have the rights and permissions needed to broadcast it. A successful FFmpeg connection does not establish that the content complies with YouTube’s copyright rules or other channel policies.
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FFmpeg’s command-line options and supported codecs and protocols vary with the installed build. Consult the documentation for the version actually deployed when changing encoders, filters, or transport options.
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