Theory & Background

HLS (HTTP Live Streaming) splits video into 6-second .ts segments with a .m3u8 playlist. Generate multiple quality levels (ABR): 360p/500kbps, 480p/1Mbps, 720p/2.5Mbps, 1080p/5Mbps. FFmpeg command: ffmpeg -i input.mp4 -vf scale=1280:720 -c:v libx264 -b:v 2500k -hls_time 6 -hls_segment_filename 720p/%03d.ts -hls_playlist_type vod 720p/index.m3u8. Master playlist references all quality playlists for player to select.

Components & Requirements

10 components required for this project.

#	Component	Purpose	Qty
1	FFmpeg	Video transcoding and HLS segmentation	x1
2	Node.js + Express	Backend API	x1
3	React + HLS.js	Adaptive video player frontend	x1
4	AWS S3	Video segment storage	x1
5	AWS CloudFront	CDN for global low-latency delivery	x1
6	Bull Queue + Redis	Async transcoding job queue	x1
7	PostgreSQL	Video metadata and user database	x1
8	FFprobe	Video metadata extraction	x1
9	WebSockets	Upload progress and transcode status	x1
10	JWT + OAuth2	Authentication and creator authorization	x1

Step-by-Step Implementation

Follow these 1 steps carefully.

1

FFmpeg Transcoding to HLS

HLS (HTTP Live Streaming) splits video into 6-second .ts segments with a .m3u8 playlist. Generate multiple quality levels (ABR): 360p/500kbps, 480p/1Mbps, 720p/2.5Mbps, 1080p/5Mbps. FFmpeg command: ffmpeg -i input.mp4 -vf scale=1280:720 -c:v libx264 -b:v 2500k -hls_time 6 -hls_segment_filename 720p/%03d.ts -hls_playlist_type vod 720p/index.m3u8. Master playlist references all quality playlists for player to select.

Code & Implementation

Core code for transcode_worker.js:

transcode_worker.js
  JAVASCRIPT

Testing & Troubleshooting

Test Video Streaming Platform by verifying each subsystem individually before full integration.

!

Troubleshooting Tips

Verify power voltages, check ground connections, use serial monitor for debug.

Real-World Applications

*Online education video platform

*Enterprise video communication

*Live event streaming

*Social media video sharing

*Video surveillance archive

*IPTV service delivery

*Sports streaming platform

*Corporate training video delivery

Extensions & Next Steps

Add live streaming using RTMP ingest + HLS repackaging
Implement DRM (Widevine/FairPlay) for content protection
Add AI-powered auto-captioning using Whisper API
Build a video recommendation engine based on watch history
Add chapter markers and interactive elements (polls, quizzes)

Interactive Playground

Coming Soon

An interactive simulator will be available here — simulate circuits and run code in-browser without hardware.

Frequently Asked Questions

Why is HLS preferred over DASH or RTMP for video streaming?

HLS (HTTP Live Streaming — Apple): runs over standard HTTP/CDN infrastructure, supported natively by all iOS/Safari devices, widely supported. DASH (Dynamic Adaptive Streaming over HTTP — standard): codec-agnostic, more efficient segmentation, supported on Android/Chrome, not natively on iOS. RTMP (Real-Time Messaging Protocol — Adobe): used for live streaming ingest (OBS → streaming server), very low latency (< 1s) but requires specialized servers, not supported in browsers. Most platforms (YouTube, Netflix) use DASH/HLS for delivery, RTMP for live ingest.

Introduction