QA
Intermediate LevelSystem Design & Architecture

How do you design a Video Streaming Platform (like YouTube or Netflix)?

❓ Interview Prompt: Explain Video Streaming architecture, video transcoding pipelines (HLS / DASH), resolution chunks, CDN distribution, and blob storage.

Designing a global Video Streaming Platform (YouTube/Netflix):

Processing Pipeline:

1
Video Ingestion: Raw video uploaded to S3 Object Storage via chunked multi-part upload.
2
Transcoding Worker Pool: Background workers split video into 10-second segments and transcode into multiple resolutions (1080p, 720p, 480p) using HLS or DASH protocols.
3
CDN Delivery: Delivers adaptive video chunks globally based on client network bandwidth.

Code Implementation Example

markdown
Video Transcoding and Streaming Architecture:

[Raw Video Upload] ──> [S3 Storage] ──> [MQ Transcode Job]
                                                │
                                      (FFmpeg Worker Pool)
                                                │
                                                ▼
[CDN Edge Nodes] <── (Adaptive HLS Chunks) ── [Transcoded S3 Storage]
  (1080p, 720p, 480p)
💡Video transcoding pipeline and adaptive bitrate CDN streaming.
🎯 Interview Key Takeaway

Design video streaming platforms using background transcoding workers to generate adaptive HLS/DASH video chunks served via global CDNs.

#System Design#Video Streaming#HLS#CDN#Intermediate
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