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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →First identify which connection is failing: FFmpeg’s source input or its YouTube publishing output. The documented reconnect options discussed here are for HTTP input—not general-purpose fixes for a failed RTMP/RTMPS publish. Check the FFmpeg log, then apply a retry policy to the connection that actually failed.
1. Locate the failure in the FFmpeg log
FFmpeg handles a source input and a publishing output as separate connections. A source may be an HTTP stream or file; the output sends the encoded stream to YouTube. Look at the log around the failure and determine whether FFmpeg was opening or reading the input, or opening or writing the output. The distinction matters: FFmpeg documents the reconnect options below under its HTTP protocol, while YouTube publishing uses RTMP or RTMPS.
- Input failure: the log points to the source URL or input read, or reports an HTTP/network error before output is written. Consider HTTP input retry options if the source is HTTP.
- Output failure: the log points to the YouTube destination or a write/publish error. HTTP input reconnect flags do not establish recovery for this failure.
- EOF: the input reached its end. This is different from a dropped publishing connection; decide whether the source should end, loop, or be retrieved again.
Do not paste unredacted logs into a public forum: command lines or diagnostics may expose a stream key.
2. Choose HTTP retry options only for an HTTP source
FFmpeg documents several HTTP protocol options with distinct triggers. They can help with input retrieval, but they do not promise every source server will accept a retry or that the content will resume at the same point.
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| Option | Documented purpose | Use it when |
|---|---|---|
reconnect |
Retry after a disconnection before EOF. | An HTTP input disconnects before it reaches the end. |
reconnect_at_eof |
Treat EOF as an error and reconnect. FFmpeg describes this as useful for live or endless streams. | An HTTP source is expected to continue, but returns EOF. |
reconnect_on_network_error |
Retry on TCP/TLS errors during connection setup. | The HTTP connection cannot be established because of a network error. |
reconnect_on_http_error |
Retry for configured HTTP status codes. | The HTTP server returns a status code you have deliberately included in the retry policy. |
reconnect_streamed |
Permit retries for streamed or non-seekable inputs. | The input is streamed or non-seekable and you want retries to be allowed. |
The FFmpeg HTTP documentation states of reconnect_at_eof: “If set then eof is treated as an error and causes reconnection, this is useful for live / endless streams.” That behavior concerns an HTTP input reaching EOF, not a YouTube output dropping.
Set bounds rather than retrying without a plan
FFmpeg documents reconnect_delay_max, reconnect_max_retries, and reconnect_delay_total_max to bound delay, attempt count, or total retry time. Check the documentation for the installed FFmpeg version and set the limits deliberately; defaults and option behavior can vary by version. A retry policy should match the source’s behavior and your tolerance for a long interruption, rather than assuming a retry will always succeed.
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3. Verify YouTube’s RTMPS destination and stream key
If the failing connection is the publishing output, confirm the destination and credentials in YouTube Live Control Room rather than adding HTTP input flags. YouTube’s RTMPS setup instructions explain how to obtain the RTMPS URL and configure the associated stream key. RTMPS is RTMP over TLS/SSL; see also Google’s RTMPS ingest overview.
- Open the intended broadcast in YouTube Live Control Room and retrieve its RTMPS URL and associated stream key.
- Check that FFmpeg’s output targets that URL and uses the key associated with the intended broadcast. Avoid confusing the publishing destination with an HTTP source URL.
- Keep the stream key private. Redact it from logs, screenshots, support requests, and example commands.
These checks confirm configuration; they do not guarantee that an interrupted output will resume seamlessly.
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4. Plan output recovery separately
When YouTube ingest drops, establish what FFmpeg does next: does it exit, remain running, or report repeated write errors? The sources document HTTP input retries, but do not establish a universal FFmpeg command that guarantees recovery for every RTMPS output failure.
- Decide who or what will detect an exited process or repeated output errors.
- Define a restart policy appropriate to your setup, including how repeated failures are surfaced rather than silently looping.
- Test what happens to the broadcast and source position after a restart; do not assume playback resumes exactly where it stopped.
5. Test the exact build and setup before relying on it
FFmpeg documentation changes over time, and an installed build may differ from the version you consulted. In a controlled stream, test the specific cases relevant to your workflow:
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- Interrupt an HTTP input and confirm that the selected retry option and bounds behave as expected.
- Test an input that reaches EOF if you intend to use
reconnect_at_eof. - Interrupt the publishing output separately and observe whether FFmpeg exits or continues reporting errors.
- Verify your restart and alerting procedure, then confirm the resulting ingest behavior in YouTube Live Control Room.
A successful input retry test is not evidence that RTMPS output recovery works, and neither test proves uninterrupted 24/7 operation.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Common failure patterns and fixes
| Symptom | Likely distinction to check | Next step |
|---|---|---|
| Retries do not restore a YouTube publish. | The flags in use may be HTTP input options, while the failed connection is RTMP/RTMPS output. | Check output errors, RTMPS URL, and associated stream key; plan output restart and detection separately. |
| An HTTP source stops at EOF. | EOF is not the same as a network disconnect. | If the source is meant to be live or endless, consider reconnect_at_eof and verify behavior on your installed build. |
| A retry option has no apparent effect on a streamed source. | The input may be streamed or non-seekable. | Check whether reconnect_streamed is appropriate, and test whether the server supports retry. |
| Retries continue too long or stop too soon. | Delay, attempt, and total-time bounds may not suit the failure. | Review reconnect_delay_max, reconnect_max_retries, and reconnect_delay_total_max against the installed version’s documentation. |
| YouTube does not receive the expected broadcast. | The URL, stream key, or intended broadcast may not match. | Retrieve the RTMPS URL and key for the intended broadcast in Live Control Room and compare them with FFmpeg’s output configuration. |
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