To rotate local videos through a YouTube Live stream, use FFmpeg to read the media files in sequence and a Python program to manage the YouTube Live API, launch and supervise FFmpeg, and handle recovery. The API schedules and binds broadcasts; it does not turn an ordinary YouTube channel playlist into a live video source. This guide applies to Ubuntu hosts and channels where live streaming is enabled; the documented workflow does not establish a separate India-only API process.
How the pieces fit together
You need two separate components. FFmpeg produces the audio-video feed from files on your Ubuntu machine. Python coordinates that process and, if you want scheduled events, calls YouTube’s API to create or select a stream, create a broadcast, bind them, and manage broadcast state.
- A live stream represents the incoming feed and its delivery settings.
- A live broadcast is the event viewers watch and a distinct YouTube video. A broadcast must be bound to a stream. Google says a stream can be reused for broadcasts at different times and can be bound to up to three broadcasts. See Google’s Live Streaming API overview.
- A playlist file for FFmpeg is a local list of media paths, not a YouTube channel playlist. The FFmpeg concat demuxer reads the listed files one after another, as though their packets were joined. See FFmpeg’s concat demuxer documentation.
The API does not manage your FFmpeg process. Your Python supervisor must treat API authentication, API calls, media playback, process exit codes, logging, and recovery as distinct jobs.
Choose a rotation strategy
One fixed list
For a stable set of videos, put paths in a concat-demuxer text file and start FFmpeg with that file. This is the simplest setup, but do not assume that changing the text file while FFmpeg is running reloads the playlist. The documentation describes reading a list; it does not promise live refresh.
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Supervisor-controlled changes
For rotation changes, have Python deliberately stop and restart the media process with an updated list, or implement another explicit rotation strategy. Test whether the restart creates a visible gap, how YouTube handles reconnects, and whether the broadcast remains usable on your actual Ubuntu, FFmpeg, and channel setup. The reviewed documentation does not guarantee uninterrupted transitions or 24/7 uptime.
File compatibility and storage
FFmpeg’s concat demuxer expects compatible inputs: the files should have the same streams, codecs, and time base. Duration inaccuracies can cause artifacts or gaps. If your files differ, normalize or transcode them ahead of time rather than assuming a stream-copy command will work. Media can be stored on the Ubuntu host or a network-mounted location; the sources establish no performance, cost, or reliability advantage for either option.
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Prepare Ubuntu and your media list
- Install or select FFmpeg. Use an Ubuntu-supported package or a deliberately pinned build, then check the local
ffmpegmanual and version. Online FFmpeg documentation may describe newer revisions than the package installed on your system, so verify that the options you use exist locally. The older Ubuntu Bionic manpage is not evidence of the version on a current Ubuntu installation: Ubuntu’s Bionic FFmpeg manpage. - Prepare and test the media. Check each file’s streams and compatibility. If you plan to copy streams without re-encoding, use inputs with matching stream layouts, codecs, and time bases; otherwise normalize them in advance. Use FFmpeg’s local documentation and test a short sequence before scheduling a long event.
- Create a concat list. Make a text file whose entries point to the files in playback order, using the concat-demuxer syntax documented by FFmpeg. Keep filenames and paths valid for the account that will run the process, and verify the list by running FFmpeg manually before adding Python supervision.
- Decide how playlist updates work. Keep the list fixed for a simple rotation, or make the supervisor regenerate the list and restart FFmpeg at a deliberate boundary. Document and test the behavior rather than relying on edits being picked up automatically.
Do not choose a universal resolution, bitrate, keyframe interval, protocol, or ingest address from this guide: those depend on the files, encoder configuration, and the channel’s current YouTube ingest settings. Use the current channel configuration and YouTube’s live guidance at YouTube Help: encoder settings, bitrates, and resolutions.
Authenticate Python and create or select the stream
- Set up Google API access and OAuth. Use a Python client authenticated to the channel with an appropriate write scope. Google’s broadcast insertion reference lists YouTube and YouTube force-SSL scopes for write operations; consult the liveBroadcasts.insert reference for current requirements.
- Protect credentials. Keep API credentials, OAuth refresh credentials, and the live stream key out of source control, command logs, and error messages. Restrict access to the account or service that needs them.
- Select or create a live stream. Use an existing stream or create one with the API. In the common single-encoder setup, stream settings can be configured once and reused for separately scheduled events. The API’s stream object is not the media playlist.
- Check channel eligibility. Confirm live streaming is enabled on the actual channel. The reviewed API material does not establish a special India-only workflow or an India-specific eligibility rule, and it does not support a claim that every channel in India is eligible.
Create and bind a scheduled broadcast
For a scheduled event, the usual API sequence is to create or select the stream, insert a broadcast, bind the broadcast to the stream, verify stream status, and then transition the broadcast as appropriate. Google documents the sequence and the testing and live states in its Live Streaming API implementation guide.
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- Insert the broadcast. Supply the required title, scheduled start time, and privacy status. Use a UTC ISO 8601 timestamp for the schedule and ensure it is in the future. The API reference lists authorization requirements and errors for missing fields or disabled live streaming: liveBroadcasts.insert.
- Bind it to the stream. Call the broadcast bind operation with the broadcast and stream IDs. Keep track of which event is bound to the feed so that you do not start the wrong scheduled event.
- Start FFmpeg against the current ingest configuration. Have Python launch FFmpeg with the concat list and the channel’s current ingest endpoint and stream key. Do not hard-code the key in source code or publish it in logs.
- Verify before transitioning. Inspect FFmpeg’s output and the stream’s status and health. Google’s Python client reference says to confirm that the bound stream is active before transitioning to testing. Then transition to testing or live as your event workflow requires. See the transition reference and the YouTube Data API Python client reference.
Use the generated Python API client’s list, insert, bind, and transition methods as appropriate. Pin the client version in a real deployment and check its installed interface rather than assuming an unpinned example will remain unchanged.
Build Python supervision and recovery
Keep the controller simple and explicit. Python should authenticate, make API calls, launch FFmpeg as a child process, capture its exit status, and decide whether a restart is safe. Log timestamps, the non-secret command configuration, process status, and relevant API state. Never print the stream key or OAuth secrets while diagnosing failures.
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- Set bounded retry limits and alert when the process repeatedly exits; blind restarts can hide a bad playlist or invalid stream configuration.
- On a planned playlist change, stop and restart FFmpeg according to the method you tested. Do not promise gap-free handoffs unless you have verified them on the actual setup.
- On an unexpected interruption, inspect the YouTube stream and broadcast state before deciding whether to restart FFmpeg, rebind, or transition. Reconnection and long-running stability depend on the channel and installed software; they are not guaranteed by the API or concat documentation.
- Test with the exact FFmpeg version, files, ingest settings, and channel you intend to use. The documentation does not establish a universal uptime figure or dynamic playlist-refresh behavior.
Troubleshooting
| Symptom | Likely checks and fixes |
|---|---|
| Broadcast insert fails | Check OAuth authorization and write scope, channel live-streaming enablement, required title, scheduled start time and privacy status, and the API error details. Ensure the scheduled time is valid and in the future. |
| Stream is not active when you transition | Confirm FFmpeg started with the correct current ingest endpoint and stream key, then inspect stream status and health. Transition only after the bound stream is active. |
| Gaps or artifacts between files | Compare stream layouts, codecs, time bases, and durations. Normalize incompatible inputs and test the sequence again; duration inaccuracies can produce artifacts or gaps. |
| Editing the list does not change playback | Do not rely on live reload. Use a tested supervisor-controlled stop/restart or another deliberate rotation method, and check for a gap during the change. |
| FFmpeg exits or the event unexpectedly stops | Review timestamps, exit status, FFmpeg output, and API state without exposing secrets. Add bounded retries and alerting, then test recovery with the exact channel and media setup. |
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