HardMedia45 min

Design a Video Streaming Platform

Design a video streaming platform like YouTube or Netflix that handles video upload, processing, and playback at scale.

NetflixYouTube/GoogleAmazonDisney

Functional Requirements

Video upload and transcoding to multiple formats/resolutions
Smooth playback with adaptive bitrate streaming
Support millions of concurrent viewers
Content recommendation
Global low-latency delivery via CDN

Steps (0/6)

Step 1: Clarify Requirements

Scale: 1B DAU, 100M videos uploaded/year. Concurrent viewers: 10M peak. Video sizes: 100MB-10GB. Support resolutions from 360p to 4K. Average watch time: 30 minutes/day per user.

Key Points

1B DAU, 10M concurrent viewers peak
Storage: massive (petabytes of video content)
Bandwidth: main cost driver
Upload processing can be async, playback must be real-time

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