An introduction to Adaptive Bitrate Streaming and how Pinterest was able to reduce startup latency for videos. Plus, the architecture of open source applications and how Anthropic was able to improve RAG.

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Pinterest managed to optimize video playback and reduce startup latency by 36% through the use of Adaptive Bitrate Streaming (ABR) techniques and by embedding video manifest files in their API responses. They employ both HLS and DASH protocols for streaming on iOS and Android, respectively. Additionally, they improved API response times by implementing a MemCache layer to serve popular video manifest files more efficiently.

How Pinterest Optimized Video Playback