Lesson recordings
Every online lesson is recorded by the classroom client and uploaded here in parts while the lesson is still running. Teachers, methodologists and the quality team play recordings back from the same store, and the transcoder pulls originals to produce playback copies.
Uploads and playback overlap through the whole day, so the archive is never idle. Browsing recordings needs a company session.
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Upload clients
Classroom recorders and the transcoding pipeline work with the archive through its S3-compatible API: path-style addressing, Signature Version 4. Keys are issued per device by the platform team. There is no anonymous access, including to test objects.
aws s3 ls s3://lesson-renditions/python-start/ \ --endpoint-url https://recording-archive.alg.team
- Part size
- 16 MiB multipart, parts are sent as the lesson goes
- Originals
- kept 3 years, then removed by lifecycle rule
- Playback copies
- 720p and 360p, rebuilt from originals on demand
- Player check
- player-check-720p.mp4, opens with a presigned link only