Do these 3 things before closing this tab:
1Clear out junk files and repair common Windows errors2Scan for outdated or missing drivers - takes under a minute3Repair Windows errors before they cause bigger problemsRun two prerecorded YouTube Live loops from one VPS by starting two separate FFmpeg processes, each with its own input, YouTube stream key, output settings, log, and restart policy. Pace each file with -re, loop it with -stream_loop -1, use the RTMPS endpoint shown in YouTube Live Control Room, and confirm that the server can handle both streams’ combined upload bitrate and encoding workload.
The commands below are starting points, not a universal VPS sizing or encoding preset. Test both streams together: the required CPU, memory, and network capacity depend on whether you copy or re-encode the media, its properties, and the VPS’s sustained performance.
What you need before starting
- A Linux VPS with enough sustained outbound bandwidth for both streams and enough CPU capacity if FFmpeg will encode either output.
- Two local media files, or two separate inputs you can access from the VPS. This example uses local files.
- A YouTube channel with live streaming enabled and a distinct stream destination/key for each intended stream. Retrieve each endpoint and key in YouTube Live Control Room.
- FFmpeg installed on the VPS, plus a process supervisor or other restart mechanism and separate logs for the two processes.
Use the exact RTMPS URL supplied by Live Control Room; do not assume an RTMP address and an RTMPS address are interchangeable. YouTube recommends RTMPS, which encrypts the connection using TLS/SSL. Treat each stream key like a password: keep it out of public scripts and redact it from logs or support requests.
Choose whether to copy or re-encode
Re-encode when you need control over output settings
Re-encoding lets you set output resolution, frame rate, bitrate, codec, and keyframe interval, but each FFmpeg process then performs its own encoding work. The example below uses H.264 and AAC. Its 5 Mbps video rate is an illustrative setting corresponding to YouTube’s recommended H.264 bitrate for 720p30; it is not proof that your source is 720p30 or that these settings suit it.
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Copy when the source is already compatible
Stream copy can reduce encoding work, but it is appropriate only if the source codecs and media characteristics are compatible with YouTube’s ingest requirements and your chosen output. Inspect the source first; do not assume a file will work unchanged. YouTube’s current RTMP/RTMPS encoder guidance lists H.264, H.265/HEVC, and AV1 video, with CBR recommended. FFmpeg’s documented real-time file-input example uses FLV output.
Prepare YouTube’s output settings
YouTube’s current encoder guidance, accessed 2026-10-03, recommends a two-second keyframe interval and says not to exceed four seconds. It supports frame rates up to 60 fps. Its recommended H.264 video bitrates vary by resolution and frame rate:
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| Output | Minimum H.264 video bitrate | Recommended H.264 video bitrate |
|---|---|---|
| 720p30 | 3 Mbps | 8 Mbps |
| 1080p30 | 5 Mbps | 14 Mbps |
| 1080p60 | 6 Mbps | 17 Mbps |
YouTube recommends 128 Kbps stereo audio. These are YouTube’s published recommendations, not measurements of your actual network use; allow for transport overhead and bitrate variation when planning capacity. Use settings that match the desired output and the actual media rather than copying a bitrate from an example blindly.
Run the first loop
- Place the media on the VPS. Confirm the file path, readable permissions, video and audio streams, and desired resolution and frame rate.
- Build the command with input options before the input and output options before the destination. FFmpeg options generally apply to the next input or output.
- Replace the endpoint placeholder. Use the exact RTMPS URL and stream key shown for this stream in Live Control Room.
- Start the process and check YouTube stream health. Verify that video moves, audio is present if expected, and YouTube reports a healthy incoming stream.
ffmpeg -re -stream_loop -1 -i /path/to/stream-one.mp4
-c:v libx264 -preset veryfast -b:v 5M -maxrate 5M -bufsize 10M
-g 60 -keyint_min 60 -sc_threshold 0
-c:a aac -b:a 128k -ar 44100
-f flv 'rtmps://INGEST_URL/STREAM_KEY'The 60-frame keyframe settings in this example correspond to a two-second interval at 30 fps. If you choose a different frame rate, adjust the GOP/keyframe values to maintain the intended interval. Confirm the command’s output against your actual frame rate and YouTube’s current guidance before relying on it.
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Start the second loop as a separate process
Run a second FFmpeg process for the other file and destination. Keep its command, stream key, log, and restart policy distinct from the first so a failure or configuration change can be isolated. Do not send both processes to the same stream key unless that is explicitly the intended YouTube configuration.
ffmpeg -re -stream_loop -1 -i /path/to/stream-two.mp4
-c:v libx264 -preset veryfast -b:v 5M -maxrate 5M -bufsize 10M
-g 60 -keyint_min 60 -sc_threshold 0
-c:a aac -b:a 128k -ar 44100
-f flv 'rtmps://SECOND_INGEST_URL/SECOND_STREAM_KEY'Replace the second file and endpoint with the actual values. Treat the sample bitrate and encoding settings as illustrative, and choose the appropriate settings independently for each source. A process supervisor can restart a process that exits; configure and test each service independently rather than assuming that one service’s health guarantees the other’s.
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Size the VPS for both streams together
Add the two configured outgoing stream bitrates to estimate the sustained upload requirement. YouTube says total stream bitrate must not exceed available upload bandwidth and recommends leaving 20% room. Applying that reserve to the combined bitrate of two independent outputs is a planning inference, not a published YouTube rule specifically for this two-stream setup.
- Check the VPS’s sustained outbound capacity in its actual region, not just a headline port speed. Leave room above the combined target bitrate.
- Determine whether each output is copied or encoded. Two separate software encodes can require substantially more CPU than sending compatible streams without re-encoding; no universal CPU-core or memory figure is established for a given quality.
- Test both processes at once. Monitor CPU, memory, network throughput, FFmpeg logs, dropped frames, and YouTube stream health while they run.
- Account for filters, scaling, other VPS workloads, and bitrate bursts in addition to the nominal streams.
A one-stream test cannot establish that the VPS can sustain two simultaneous outputs. Choose a VPS only after checking both streams under the configuration you intend to keep running.
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Keep the streams running and recover safely
FFmpeg documents reconnect options for certain protocols, including reconnecting on network errors and limiting retry delays. The applicable options depend on the protocol and failure mode; they do not guarantee recovery from every RTMP/RTMPS, network, or YouTube-side interruption. Use separate logs, monitor for a dead process or unhealthy stream, and test the actual failure-and-recovery behavior before leaving either stream unattended.
- Use a supervisor configured to restart a failed FFmpeg process, with distinct service definitions for each stream.
- Log each stream separately and ensure the logs do not expose unredacted keys.
- Test a controlled interruption and confirm both the process and YouTube ingest recover as expected.
- In Live Control Room, reset a compromised stream key and update the matching FFmpeg command or service configuration.
YouTube recommends testing before going live with audio and moving video similar to the real content, then monitoring stream health and messages. A process that is running is not by itself proof that YouTube is receiving a healthy stream.
Account for YouTube’s long-stream archive and DVR behavior
YouTube says streams under 12 hours are automatically archived. Separately, DVR rewind may be limited or unavailable for streams longer than 12 hours. DVR concerns viewers pausing, rewinding, and resuming during a live stream; archive availability is a separate behavior. Check current YouTube help and channel settings if either behavior matters to your broadcast.
Troubleshoot common failures
YouTube does not receive the stream
- Check the endpoint and key. Confirm that the command uses the exact RTMPS endpoint and the key for that stream from Live Control Room. A reset key must also be updated on the VPS.
- Check the local input. Verify that the file exists, is readable, and contains the expected media streams.
- Check FFmpeg output and YouTube health messages. Keep the two processes’ logs separate so you can identify which stream is failing.
The stream stutters or drops frames
- Check combined network load. Compare actual outbound throughput with the two streams’ aggregate configured bitrate and leave headroom.
- Check encoding load. If both processes re-encode, inspect CPU use and reduce workload or revise output settings only after testing.
- Check output settings. Confirm codec, CBR behavior, resolution, frame rate, and keyframe interval against YouTube’s guidance and the source file.
A process exits or does not recover
- Read that process’s log to identify whether the input, encoder, or connection failed.
- Confirm the supervisor is configured for that service and test a restart rather than relying on FFmpeg protocol reconnect behavior alone.
- Verify YouTube ingest health after restart. A restarted process may still have a bad endpoint, key, or incompatible output.
Audio is missing or the output is rejected
- Confirm the input has an audio stream if one is expected.
- Check that the selected audio codec and bitrate are appropriate; YouTube recommends 128 Kbps for stereo audio.
- Test with representative moving video and audio before leaving the stream unattended.
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