The Bug Hunter's Guide: Unraveling Video Players CMCD implementation in a month
summary
A CMCD Validator is built in a month with one‑week sprints and public planning, released an npm library in three weeks, a web validator for Shaka/Dash/Bitmovin/VideoJS, an extractor that acts as a proxy for mobile and stores data for analysis. The team finds and reports real implementation bugs — reported implementation bugs in Dash.js Bitmovin Shaka — proposes clarifying changes to the CMCD spec, and wires an analyzer into Elastic/Kibana to compare player behavior.
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chapters (12)
- 0:00CMCD community project intro
- 2:08Summer Camp coding challenge
- 3:32CMCD validation tools design
- 4:33Open methodology and teamwork
- 5:15Month-long sprint results
- 6:19Web validator for players
- 7:02CMCD data extractor
- 7:43Fixing player implementations
- 8:26Team and community impact
- 9:06External bug reporting impact
- 10:11CMCD standard clarifications
- 10:53Conclusion and future
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