Modern & secure adaptive streaming on the Web
summary
Shows how MP4s are fragmented and served with DASH using Bento4 and ffmpeg, producing an init segment plus numbered media segments and a stream MPD that lists five representations (five bitrates). Uses Media Source Extensions to create SourceBuffers and fetch 2‑second-aligned segments (48 frames at 24fps) so the player can switch bitrates midstream. Demonstrates Widevine encryption (pssh in init), EME/CDM license exchange with a license server, and a working demo player.
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chapters (10)
- 0:00Modern secure streaming intro
- 3:12Smooth playback efficiency
- 10:46MP4 structure & fragmentation
- 17:10Media Source Extensions
- 22:33Adaptive bitrate demo
- 31:53Licensed content encryption
- 36:57Decryption step-by-step
- 44:21Encrypted playback demo
- 49:02Summary
- 52:15Q&A
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