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For a conventional 1080p SDR YouTube stream encoded as H.264, use 14 Mbps at 30 fps or 17 Mbps at 60 fps, constant bitrate (CBR), a two-second keyframe interval, AAC stereo audio at 128 Kbps and 44.1 kHz, and RTMPS. Match the frame rate to the source rather than converting 30 fps footage to 60 fps. These are YouTube’s current ingest recommendations; a 24/7 stream also depends on a continuous source, an encoder that can keep up, and sufficient upload bandwidth.
Recommended 1080p settings at a glance
| Setting | 1080p30 | 1080p60 | Notes |
|---|---|---|---|
| Video codec | H.264 | H.264 | YouTube lists H.264 as a supported ingest codec. FFmpeg’s software encoder is commonly named libx264, if included in your build. |
| Video bitrate | 14 Mbps recommended; 5 Mbps listed minimum | 17 Mbps recommended; 6 Mbps listed minimum | These are YouTube’s H.264 guidance; use the recommended value when your connection and encoder can sustain it. |
| Rate control | CBR | CBR | YouTube recommends constant bitrate encoding. |
| Keyframe interval | 2 seconds / 60 frames | 2 seconds / 120 frames | YouTube recommends two seconds and says not to exceed four seconds. Frame counts are calculated from the selected frame rate. |
| Audio | AAC, stereo, 128 Kbps, 44.1 kHz | AAC, stereo, 128 Kbps, 44.1 kHz | Decide explicitly how to handle a source with no audio, then test the actual output. |
| Protocol | RTMPS | RTMPS | YouTube recommends RTMPS for encrypted contribution to its servers. |
| SDR picture | Progressive, square pixels, Rec. 709, 8-bit | Progressive, square pixels, Rec. 709, 8-bit | YouTube’s advanced recommendations for SDR. |
| H.264 advanced flags | 2 B-frames, 1 reference frame, CABAC | 2 B-frames, 1 reference frame, CABAC | YouTube’s recommended advanced settings. |
These recommendations reflect YouTube Help’s encoder-settings guidance, checked October 3, 2026. The 60- and 120-frame GOP values are the arithmetic equivalent of two seconds at 30 and 60 fps.
Choose 30 fps or 60 fps based on the source
Use 1080p30 for static or low-motion content
For a static image, talk, or other low-motion source, 30 fps may be sufficient. YouTube lists 5 Mbps as its H.264 minimum guidance for 1080p30 and recommends 14 Mbps. The minimum is not the quality target when your connection can sustain the recommended rate.
Use 1080p60 when the source has meaningful motion
Fast movement can benefit from 60 fps if the original footage contains that detail and your encoder and connection can keep up. YouTube’s recommended H.264 bitrate rises to 17 Mbps at 1080p60, with 6 Mbps listed as the minimum. Encoding twice as many frames per second also increases the work the host must sustain; that is an engineering implication, not a benchmark for a particular machine.
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Do not turn 30 fps footage into 60 fps just to claim a higher frame rate: duplicating or interpolating frames does not add genuine motion detail. Prefer the lowest frame rate that faithfully represents your source.
FFmpeg command for looping a local file
This illustrative command loops a local file with audio as a 1080p30 H.264 stream. Replace the input path and RTMPS ingest URL and key with the values shown in your YouTube Live Control Room. Never publish a real stream key.
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ffmpeg -re -stream_loop -1 -i input.mp4
-vf "scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,fps=30,format=yuv420p"
-c:v libx264 -preset veryfast -tune zerolatency
-profile:v high -pix_fmt yuv420p
-b:v 14M -minrate 14M -maxrate 14M -bufsize 28M
-g 60 -keyint_min 60 -sc_threshold 0
-bf 2 -refs 1 -coder cabac
-color_primaries bt709 -color_trc bt709 -colorspace bt709
-c:a aac -b:a 128k -ar 44100 -ac 2
-f flv "rtmps://YOUR_YOUTUBE_INGEST_URL/YOUR_STREAM_KEY"Adapt it for 1080p60
Change the video filter to fps=60, the GOP options to -g 120 -keyint_min 120, and the video rate-control options to -b:v 17M -minrate 17M -maxrate 17M -bufsize 34M. The 28M and 34M buffer values are example choices equal to two seconds of target bitrate; YouTube does not mandate those buffer values.
Know what the example assumes
- The input is a compatible local file with audio, and the installed FFmpeg build includes
libx264. - The scale-and-pad filter fits the full input image inside 1920×1080 and pads as needed. It does not crop; choose a different treatment if you want cropping or a different aspect ratio.
-preset veryfastis an illustrative x264 speed/quality choice, not a universal setting. Benchmark sustained encoding on the actual host before relying on it.- A camera, network input, audio-free file, unusual aspect ratio, HDR source, or hardware encoder needs an adjusted command. Test the actual output rather than assuming this filter chain is appropriate.
- A looping file can have an audible or visible jump at the loop point. Inspect and test the transition.
Adjust playback behavior for other sources
For a file that should play once and stop, remove -stream_loop -1. For a genuine live source, replace the file input and omit -re unless that source’s handling specifically requires pacing. FFmpeg documents -re as input pacing equivalent to -readrate 1, useful when simulating real-time packet flow from a file. FFmpeg warns that using it blindly on a live capture device or network source may cause packet loss. Check the FFmpeg documentation for option details; exact behavior depends on the encoder and build.
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Set up the YouTube stream and protect the key
- Get the ingest URL and stream key. In YouTube Live Control Room, create or select the live stream and copy its server URL and stream key into your local FFmpeg command or a secure secret-management mechanism. YouTube’s guidance describes creating and entering the key in the encoder.
- Use RTMPS and keep the key private. Do not expose it in a public script, screenshot, or article. Anyone with access to the key may be able to send video to the associated stream.
- Start FFmpeg, then inspect Live Control Room. Check that YouTube receives the expected resolution, frame rate, audio, and stream health before relying on the setup.
- Test with representative content. YouTube recommends testing before going live with audio and movement similar to the real stream. Check the loop transition as well as normal playback.
What makes a stream last around the clock
Correct codec flags do not make a 24/7 system reliable on their own. YouTube says the total stream bitrate cannot exceed the upload bandwidth available. Leave practical margin for network variation, but there is no universal headroom percentage in the cited guidance.
- Source: Confirm the file loop or live capture remains available and that timestamps and audio behave correctly, including at transitions.
- Encoding: Verify FFmpeg maintains real-time output without repeatedly falling behind. Results depend on the actual host, encoder, and preset; no specific-machine benchmark is implied here.
- Connection: Check sustained outgoing capacity under real conditions against the complete stream bitrate. YouTube recommends monitoring stream health and reviewing its messages.
- Recovery: FFmpeg encoding options do not provide host restart, process supervision, power backup, or network failover. Plan those separately if your setup requires them.
YouTube’s encoder guidance says, “Make sure to test before you start your live stream,” and its streaming tips say the total stream bitrate cannot exceed available upload bandwidth. See YouTube’s encoder settings and bitrate recommendations and YouTube’s streaming tips.
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Troubleshooting common FFmpeg 24/7 stream problems
| Symptom | Likely cause | What to check or change |
|---|---|---|
| YouTube reports poor stream health or the feed drops | Outgoing bitrate exceeds available upload bandwidth, or the connection is unstable. | Check YouTube’s stream-health messages and verify sustained upload capacity against the complete stream bitrate. If needed, lower the selected frame rate or bitrate while keeping within YouTube’s guidance and test again. |
| Video stutters, falls behind, or output frame rate drops | The host may not sustain the selected resolution and frame rate with the chosen encoder settings. | Measure sustained performance on the actual host. Consider 30 fps if the content does not need 60 fps, or adjust the encoder preset and validate the result before depending on it. |
| The stream has no sound | The file may have no audio, the audio mapping or format may be unsuitable, or the output may not match the intended audio settings. | Inspect the source’s audio and test the outgoing stream. Decide whether to supply silence or omit audio when the source is silent; do not assume the example command creates silence. |
| The picture is stretched, cropped, or padded unexpectedly | The source aspect ratio differs from 16:9, or the scale/pad filter does not match the intended presentation. | The example preserves the full frame and adds padding to fit 1920×1080. Adjust the filter if you intend to crop or use a different output shape, then verify the result in YouTube. |
| The feed ends after one playback | The input was not set to loop, or the source did not remain available. | For a local file intended to loop, use -stream_loop -1 and confirm the path and file remain accessible. |
FFmpeg rejects an option or cannot find libx264 |
The installed version or build may not include the encoder, or an option may behave differently in that build. | Check the local FFmpeg build and its documentation, then adapt the command to the available encoder. Option behavior depends on version and build configuration. |
| The stream key is rejected or the wrong video appears | The URL/key pair may be incorrect, outdated, or associated with another live stream. | Copy the current ingest URL and key from the intended YouTube Live Control Room stream. Keep the key private. |
Or let it run in the cloud
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