Thumbnail Generation in Elixir/Erlang with libVIPS
summary
Claims sub‑second thumbnailing versus 4+ seconds using libVIPS and a small C helper; actual code lives at supervised-scaler. Implementation details: a C program talks over stdin/stdout using the libvips C binding, supervised from Elixir via an exec/port pool so crashes restart automatically. Measured result is <1s versus >4s on a large 6000×6000 image, temporary files are allocated and must be cleaned, and the design isolates malicious input by process restart.
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chapters (5)
- 0:00Introduction to thumbnails
- 1:07Evaluating solutions
- 2:51Choosing the right library
- 3:54Implementation strategy
- 5:34Conclusion and follow-up
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