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Code RoomMedia transcoding pipeline
HardPrep Room Coding #3715

Media transcoding pipeline

System designStorage & CDNAlgorithms & data structuresSenior–Staff~45 min

Design a media-transcoding + storage pipeline for a VOD platform. Constraints: creators upload large master files (multi-GB, hours long), each must be transcoded into an adaptive-bitrate ladder (several resolutions/bitrates) and packaged (HLS/DASH segments), transcoding is CPU/GPU-heavy and bursty, a long video must not block others, and finished renditions are stored cheaply and served via CDN. Cover ingest, the transcode pipeline, and packaging/storage.

What a strong answer looks like

Clarify scale and constraints first. Propose a clean component breakdown, then go deep on the hard parts (data model, bottlenecks, consistency, failure modes) and name the trade-offs you are making.

Clarify5:00 left
Estimate5:00 planned
Design15:00 planned
Deep dive12:00 planned
Failure8:00 planned
0:00
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.